Effect of Soil Structure Interaction on Gravity Dam

Size: px
Start display at page:

Download "Effect of Soil Structure Interaction on Gravity Dam"

Transcription

1 Effect of Soil Structure Interaction on Gravity Dam Ms. Patil Swapnal V. Assistant Professor, Dept. of Civil Engg., JSPM s Imperial College of Engineering & Research, Pune. Abstract In the proposed study, the effect on gravity dam has been examined using finite element analysis software ANSYS 14. The gravity dam is completely resting on soil media and surrounded by soil media. The relevant amount of soil around and bottom of the gravity dam has been modeled to simulate the in-situ conditions. The gravity dam has been analyzed using dynamic loading in transient analysis using Imperial Valley (1940) earthquake record are included. Analysis of the gravity damhas been carried out and the influence of soil properties has been studied at the region of transverse sections, which exhibited the response in terms of stress and deformation with significant difference. Index Terms Gravity dam, finite element method, Soil Structure Interaction, transient analysis 1.1 Soil Structure Interaction I. INTRODUCTION Soil-Structure Interaction is a challenging multidisciplinary subject which covers several areas of Civil Engineering. Virtually every construction is connected to the ground and the interaction between the artifact and the foundation medium may affect considerably both the superstructure and the foundation soil. The Soil-Structure Interaction problem has become an important feature of Structural Engineering with the advent of massive constructions on soft soils such as nuclear power plants, concrete and earth dams. Buildings, bridges, tunnels and underground structures may also require particular attention to be given to the problems of Soil-Structure Interaction. We have seen earlier that considering the soil as a deformable elastic medium the stiffness of soil gets coupled to the stiffness of the structure and changes it elastic property. Based on this the characteristic response of the system also gets modified. This we can consider as the local effect of soil. On the other hand consider a case of a structure resting on a deep layer of soft soil underlain by rock. It will be observed that its response is completely different than the same system when it is located on soft soil which is of much shallow depth or resting directly on rock. Moreover the nature of foundation, (isolated pad, raft, pile), if the foundation is resting or embedded in soil, layering of soil, type of structure etc. has profound influence on the overall dynamic response of the system. The complexity of the problem, due also to its multidisciplinary nature and to the fact of having to consider Manuscript received April First Author name: Dept. of Civil Engg., JSPM s Imperial College of Engineering & Research, Pune, Pune, India, bounded and unbounded media of different mechanical characteristics, requires a numerical treatment for any application of engineering significance. The Finite Element Method appears to be well suited to solve problems of Soil- Structure Interaction through its ability to discretize only the boundaries of complex and often unbounded geometries. 1.2 Categories of Interaction Structures Supported By Ground It is important to distinguish between two broad objectives in carrying out soil structure interaction analyses: first and perhaps of most concern to the engineer, is the need to estimate the form and magnitude of the relative deflections. This information is used to assess the likelihood of damage and to investigate the merits of different foundations and structural solutions. Secondly is the much more specialized requirement of calculating the distribution of forces and stresses within the structure Ground Supported By Structures Earth retaining structures are unique in that the walls are integral components of soil structure systems deriving both loading and support from the soil. Strain and time- dependent forces and movements cause variations in ground pressure and retaining structures respond to these changes in order to maintain a state of balance. 1.3 Aim of the Study The aim of work is twofold. First includes working on the analysis of gravity dam section neglecting soil structure interaction. Second includes working on the correct modeling of structures considering soil structure interaction. Some of the procedures currently practiced by structural designers for this are studied and a modeling procedure is selected. Based on this procedure a model is generated for future work. The other part is includes to determine the dynamic interaction of concrete dams with soil foundation and to check the displacement and stresses induced in dam-soil due to earthquake forces. The Third part parametric studies of different height of dam and changing different soil model dimensions. II. LITERATURE REVIEW Dams are Failure quite rapidly without adequate prior of warning with a large potential of by excessive calamity. Jerry Foster, H. Wayne Jones, studied a project using by 1046

2 Computer-Aided Structural Engineering (CASE) Committee on FEM this method of analysis for gravity dam. They discussed of the various studies that was various types of foundation models and the size of the foundation according to Base Width of the concrete gravity dam, they found the foundation size and stiffness the effect on the stresses in the structure. G. N. Bycroft and P. N. studied SSI effect that considering seismic ground motion of long trapezoidal section dam and foundation. They analytically proved that when optimum seismic design of considering triangular cross section of dam of their SSI effect is lower, when the strain occurring in the dam section. Mohammad Mehdi Heydari and Shiva Khosravi (Iran, 2013) they investigated developing 2D Finite Element model different geometrical shape of concrete gravity dam of considering dam-reservoir-foundation interaction effect by using ANSYS modal analysis they proved that Dam soil water interaction is very important for safety design of dam. Brijesh Singh and Pankaj Agarwal (2009) have investigated the seismic ground motion response of high concrete gravity dam-reservoir water-foundation system. They have studied the effect of flexibility foundation and reservoir by dynamic transient analysis. The dam has been considering analysis of plane stress effect on structure to the different dimension of soil model of with and without SSI. They also proved that, increasing the soil model dimension there is no effect of soil structure interaction on structure. Anil K. Chopra (2012) has discussed the 3D analysis of arch dam by various influence the viz. semi unbounded size of the reservoir and foundation-rock domains, dam-water interaction, wave absorption at the reservoir boundary, dam foundation rock interaction, and variations in seismic ground motion in the dam-rock interface. III. FORMULATION OF PROBLEM In a gravity dam the force of the water is held back by the self-weight of the dam, with some assistance from shearing resistance and bond. Analysis of structure with soil structure interaction effect is done by Finite Element Method (FEM). The FEM has become a powerful tool for the numerical solution of a wide range of engineering problems. In this method all the complexities of the problems like varying shape, boundary conditions and loads are maintained as they are but the solution obtained are approximate. Because of its diversity and flexibility as an analysis tool, it is receiving much attention in engineering. The earthquake response of gravity dams under strong ground motion could be determined by considering the two dimensional independent vibration of the dam. A general analytical procedure to evaluate the response of concrete gravity dams subjected to strong ground motion is developed by the substructure method approach. In this work, the response for modeling of dam soil is formulated by discrediting the system into two substructures which are Gravity Dam Section without and with SSI for Dynamic Analysis (Transient Analysis). In the formulation of the Dam and Soil interaction, a substructure method is used. The coupling is done using the interfaces that take into account the interaction forces between the dam and Soil. Here ANSYS 14 is used for the analysis of the gravity dam section. 3.1 Data for the Gravity Dam In the properties of dam, geometry variables of dam and material properties are mentioned. The geometry variables of dam are given in Table 3.1.Shape of dam with geometry variables is shown in Figure 3.1.The concrete is assumed to be homogeneous and isotropic. Material properties of dam [12], foundation are mentioned in Table m 14.8 m 70 m Figure 3.1: Geometry variables of dam for validation Table 3.1: Geometry parameters of dam Koyna dam Table 3.2: The material properties of dam and foundation Dam Dam Foundation Foundation (soil) Density 2400 kg/m 3 Modulus of elasticity MPa Poisson s ratio 0.2 Density 1800 kg/m 3 Modulus of elasticity MPa Poisson s ratio FEM in Structural Analysis (Basic Steps) a b Hs D B 14.8 m 70 m 103 m 100 m 350 m In engineering problems there are some basic unknowns, from which behavior of entire structure can be predicted. These variables are displacement in solid mechanics. In a continuum these unknowns are infinite. The finite element procedure reduces such unknowns to a finite element number by dividing the solution region into parts called elements. The material properties and governing relationships are considered over these element corners. An assembly process, duly considering the loading and constraints, results in a set of equations. Solution of these equations gives us approximate behavior of continuum. 1047

3 Steps: 1. Divide the structure into pieces (elements with nodes ) 2. Evaluation of element stiffness 3. Connect (assemble) the elements at nodes to form an approximate system of equations for whole structure, i.e., assemblage of element stiffness matrices for the system. 4. Introduction of boundary conditions. 5. Solve system of equations involving unknown quantities at nodes (e.g., displacements). 6. Calculate desired quantities (e.g., strains and stresses) at selected elements 3.3 Problem Solution by Software ytivargdam section is modeled as ax symmetric problem. Analysis of the ytivarg dam neglecting and considering soil structure interaction effect is done by Finite Element Method.Finite Element Method based software ANSYS is used for the analysis. Result for gravity dam 1. Results for gravity dam section considering fixed base 2. Results for gravity dam section considering soil structure interaction effect. 3. Comparison of results with ANSYS modeling. (a) First Mode (b) Second Mode 3.4 Finite Element Analysis Finite element analysis (FEA) has become commonplace in recent years, and is now the basis of a multibillion dollar per year industry. Numerical solutions to even very complicated stress problems can now be obtained routinely using FEA. Ray Clough was the first to use the Finite Element procedure. From the time remarkable advances have been made in the last many years both on the mathematical foundations and generalization of method to solve field problems in various areas of engineering analysis. IV. VALIDATION OF PROBLEM SOLUTION BY SOFTWARE In this problem of dam with and without soil structure interaction system is analyzed using simplified analysis of fundamental mode response and validated with ANSYS results. And results of numerical problem from previous research papers are compared with results of same problem using ANSYS 14 software. (c) Third Mode (d) Fourth Mode Figure 4.1: Mode shapes of dam without SSI Result in Modal analysis with SSI effect: Here the modeling of soil is done in addition to the structural modeling of Gravity Dam with reference of Shiva Khosravi s. As the soil is also modeled, effect of soil stiffness on the structure can be evaluated. As the soil stiffness is attached to the structure change in stress and displacement result of the structure can be evaluated. Flexibility of demand soil stiffness interaction effects is activated in finite element model by adding the soil-structure interface at dam and soil surface. The formulation which is adopted for the present study is valid to solve dam-soil interaction effect for calculating fundamental natural period as the present results show good agreement with the target results available in the literature. 4.1 Results of Modal Analysis The mode shapes are in modal analysis of gravity dam without SSI and with SSI shown in Figure 4.1 and Figure 4.2 for. When dam flexibility and soil stiffness interference effects are activate in finite element model by adding the soil-structure interface at dam and soil surface Result in Modal analysis without SSI effect: (a) First Mode (b) Second Mode 1048

4 (c) Third Mode (d) Fourth Mode Table No 4.3: A comparison of natural frequencies with reference to FE model Mode No. Shiva Khosravi s Work The Present Work Natural Frequencies (Hz) % Error Figure 4.2: Mode shapes of dam with SSI Results Comparison of Gravity Dam Section with and without SSI Results of comparison of first four modal natural frequencies & total displacement of Gravity Dam without and with SSI Effect are shown in Table 4.1and Table 4.2. Table 4.1: Results of Gravity Dam without and with SSI Effect natural frequencies of first four modes in Modal Analysis Mode no. Natural Frequencies Without SSI Natural Frequencies With SSI Table 4.2: Results of Gravity Dam without and with SSI effect total displacement of First four modes in Modal Analysis Mode no. Total displacement of Without SSI Total displacement of With SSI From Table 4.3 and Table 4.4 it is seen that for higher modes of the dam with SSI has natural frequencies and total displacement less than the dam without SSI Validation of Result The validated results of gravity dam are tabulated in Table No 4.3. Results of modal analysis of present work and compared with Shiva Khosravi s studied work. From this analysis of the problem of dam with and without soil structure interaction system are analyzed using simplified analyses of fundamental mode response and validated with ANSYS results. The results of problem from previous research papers are compared with results of same problem using ANSYS software. The formulation which is adopted for the present study is valid to solve dam-soil interaction effect for calculating fundamental natural period as the present results show good agreement with the target results available in the literature. 4.2 Finite Element Analysis Using ANSYS Software In the paper work finite element analysis is done using ANSYS 14 version software in ANSYS workbench. ANSYS Workbench combines the strength of CPU with the project management tools necessary to manage the project workflow. In ANSYS Workbench, analyses are built as systems, which can be combined into a project. The project is driven by a schematic workflow that manages the connections between the systems. From the schematic, you can interact with applications that are native to ANSYS Workbench (called workspaces) and that display within the ANSYS Workbench interface and you can launch applications that are data-integrated with ANSYS Workbench, meaning the interface remains separate, but the data from the application communicates with the native ANSYS Workbench data. V. RESULT AND DISCUSSION 5.1 considering various cases In these work results of various cases as refer in previous section analyzed by ANSYS 14 software are presented and discussed in connection with soil structure interaction. Displacement and stresses induced in the soil -dam system is checked by software. Results of transient analysis using Imperial Valley (1940) earthquake record are included. Results are also obtained by considering various cases viz. height of dam, modulus of elasticity of soil and soil model dimensions. As soil structure interaction effect on structure is there up to certain dimension of soil model, after increasing the soil model dimension there is no effect of soil structure interaction on structure. 1049

5 Peak Equivalent Stress ( MPa) Peak Displacement ( m ) International Journal of Science, Engineering and Technology Research (IJSETR) Results of transient analysis of dam section without SSI Effect (changing the height of dam) Transient analysis of dam without SSI for various heights of dam viz. 60 m, 80 m, 100 m and m is carried out, peak values of displacement and equivalent stress are obtained and tabulated in Table 5.1 and presented in Figure 5.1 & 5.2. Table 5.1: Result of displacement & stresses in various height of dam without SSI Height of Dam X-displace ment Y-displace ment Equivalent stress of dam (MPa) x x x x x x x x x x x x (a) for dam 60 m (b) for dam 80 m 2.50E E E E E-12 Peak X- Displace ment Peak Y- Displace ment (c) for dam 100 m (d) for dam m Figure 5. 3: X-displacements of various heights of dam without SSI i.e. (a) For 60 m dam (b) For 80 m dam, (c) For 100 m dam, (d) For m dam 0.00E E Height of Dam ( m ) Figure 5.1: X and Y- displacement for various heights of dam without SSI 4.50E E E E E E E E E E E+03 Equivalent stress Height of Dam ( m ) Figure 5.2: Equivalent stresses of various heights of dam without SSI The total X and Y displacements and equivalent stresses for various heights of dams without SSI are presented in following Figure 5.3, Figure 5.4and Figure 5.5 respectively. (a) for dam 60 m (c) for dam 100 m (b) for dam 80 m (d) for dam m Figure 5.4: Y-displacements of various heights of dam without SSI i.e. (a) For 60 m dam (b) For 80 m dam, (c) For 100 m dam, (d) For m dam 1050

6 (a) for dam 60 m (b) for dam 80 m Table: 5.2: Peak values of X- Displacement of dam with SSI. Soil model ( m x m) 60 m 80 m 100 m m Peak X Displacement of dam with SSI in x Table 5.3: Peak values of Y- Displacement of dam with SSI (c) for dam 100 m (d) for dam m Figure 5.5 : Equivalent Stress of various heights of dam without SSIi.e. (a) For 60 m dam (b) For 80 m dam, (c) For 100 m dam, (d) For m dam 4.3 Results of transient analysis of dam section with SSI Effect In these section results of transient analysis for various cases mentioned for SSI. The peak value of displacement and equivalent stress (von-mises) obtained. If the soil structure interaction effect is considered, soil stiffness is assumed to be attached to the structural stiffness. Hence, the stiffness of the structure is reduced. As the dimension of soil model surrounding the structure increases the effect of soil on structure gets reduced. After some limitation, even increase in soil dimension does not affect the displacement and stress result in the structure Results of Transient analysis changing height of demand depth of soil model The peak values of X-Directional and Y-Directional displacements of Dam with Soil Structure Interaction are tabulated shown in Table 5.2 and Table 5.3 respectively and presented graphically in Figure 5.6 and Figure 5.7. The peak value of equivalent stress of Dam with Soil Structure Interaction is tabulated shown in Table 5.4 and graphical variation in Figure 5.8. Soil mode ( m x m) 60 m 80 m 100 m m Peak Y Displacement of dam with SSI in x Table 5.4: Peak values of Equivalent Stress of dam with SSI Soil mode ( m x m) 60 m 80 m 100 m m Peak Equivalent Stress of dam with SSI in x 10-6 (MPa)

7 PEAK EQUIVALENT STRESS in x 10^-6 ( MPa) PEAK Y-DISPLACEMENT in x 10^- 10 ( m ) PEAK DISPLACEMENT X 10^-10 ( m ) International Journal of Science, Engineering and Technology Research (IJSETR) Figure 5.6: For modulus elasticity of soil variation on of Peak X Displacement w. r. to size of soil model and Height Figure 5.7: For modulus elasticity of soil variation on of Peak X Displacement w. r. to size of soil model and Height of dam with SSI SIZE OF SOIL MODEL (m x m) SIZE OF SOIL MODEL ( m x m ) m 80 m 60 m 80 m 100 m m 100 m m 60 m 80 m 100 m m Table 5.4: Comparisons of peak values of displacement in Dam with and without SSI Ht. of Dam Peak X-displacement Without SSI x x With SSI Peak Y-displacement Without SSI x x With SSI x x x x x x x x x x x x Table 5.4: Comparisons of Peak Equivalent stress values in Dam with and without SSI Ht.of Dam Without SSI Peak Equivalent stress of dam (MPa) With SSI x x x x x x x x 10-6 From above table, discussed the results all cases in connection with soil structure interaction. In all cases of dam with SSI, peak X-Displacements and Y- displacements are decreases. In this discussion it is observed that, peak equivalent stresses are maximum in at bottom of dam section. In table 6.18 it is observed that the peak Y- displacements and Equivalent stresses of without SSI of Dam are minimum as compare to with soil SSI of Dam SIZE OF SOIL MODEL ( m x m ) Figure 5.8: For modulus elasticity of soil variation on of Peak Equivalent stress w. r. to size of soil model and Height of dam with SSI. From all above observation, it is noted that as height of dam increases maximum total equivalent stress is at lower depth. It is observed that these can be critical depth as equivalent stresses are maximum at for these depths and for any other combination. The given height the values are equivalent stresses less than that observed at these depths. These cases it is observed from, dam of 100 m height is more susceptible to damage. All above results of with and without soil structural interaction of dam comparisons of peak values tabulated in Table 5.4. VI. CONCLUSION From the analysis, it can be concluded that, if soil stiffness and mass of the soil is considered the displacement is higher for the soil structure interaction compared to that of without soil structure interaction (fixed base). Also concluded that, if soil is considered the stress at the toe in the gravity dam section increase. Also, after some soil depth the effect of soil on gravity dam section can be neglected. From the results, after soil depth equal to 280 m gravity dam stress and displacement in the gravity dam section become constant. It can be concluded that, if SSI is considered the peak equivalent stress at the bottom of the gravity dam section decreases. Also as the depth of soil increases peak displacement in X and Y direction increases. 1052

8 From the analysis of Dam with SSI, it can be concluded that 100 m height of dam is more susceptible to damage. As height of dam increases maximum total equivalent stress is observed at lower modulus of elasticity and at lower depth. For the Gravity Dam construction if there is no hard rock available at greater depth also then it is very important to check effect of soil structure interaction. REFERENCES [1] Dr. K. Rama Mohan Rao, Nagul Nanne Shaik, Finite Element Modeling and Seismic Response Evaluation of Large Concrete Gravity Dams - An Approach based on Indian Standard Codal Guidelines, International Journal of Emerging Engineering Research and Technology Volume 2, Issue 2, May 2014, PP [2] Pratik Patra, Development Of Mythology For Seismic Design Of Concrete Gravity Dam, Ph.D. Theisis,National Institute Of Technology Rourkela Odisha,,pp -1-49, May 2014 [3] Behnam Mehdipour, Effect of Foundation on Seismic Behavior of Concrete Dam Considering the Interaction of Dam Reservoir, Journal of Basic and Applied Scientific Research, Text Road Publication, Res. 3(5) Pp 13-20, 2013 [4] Amina Tahar Berrabah, Nazzal Armouti, Mohamed Belharizi and Abdelmalek Bekkouche, Dynamic Soil Structure Interaction Study, Jordan Journal of Civil Engineering, Volume 6, No. 2, pp , 2012 [5] Amina Tahar Berrabah, Dynamic Soil-Fluid-Structure Interaction Applied For Concrete Dam, Thesis Doctorate Degree In Civil Engineering CRIL Technology Paris, Pp 1-172, 2012 [6] M. Khatibinia, J. Salajegheh, M.J. Fadaee And E. Salajegheh Prediction Of Failure Probability For Soil structure Interaction System Using Modified ANFIS By Hybrid Of FCM-FPSO, Asian Journal Of Civil Engineering (Building And Housing) Vol. 13, No. 1 Pp1-27, 2012 [7] Shiva Khosravi, Mohammad Mehdi Heydari Javad Salajegheh, Kerman Branch, Islamic Shahid Bahonar, Simulating of Each Concrete Gravity Dam with Any Geometric Shape Including Dam-Water-Foundation Rock Interaction Using APDL, World Applied Sciences Journal 17 (3): ISSN , pp , 2012 [8] T Subramani, D.Ponnuvel, Seismic and Stability Analysis of Gravity Dams Using Staad PRO, International Journal of Engineering Research and Development ISSN: X, Volume 1,, PP.44-54, Issue 5 June 2012 [9] Kaushik Das,Pankaj Kumar Das Lipika Halder Seismic Response of Concrete Gravity Dam, Civil Engg Department NIT Agartala, htc, pp 1-13, 2011 [10] Tahar Berrabah, A. Bekkouche, A. Aboubekr Belkaid University, Tlemcen Algeria, Belharizi, M., Behavior of Dam Reservoir Foundation System, EJGE, Vol. 16 [2011], Bund. T pp , 2011 [11] A. Burman, D. Maity, S. Sreedeep, Iterative analysis of concrete gravity dam-nonlinear foundation interaction, International Journal of Engineering, Science and Technology, Vol. 2, No. 4, pp , 2010 [12] Helgi S. Ólafsson, Eyþór R. Concrete walls founded on earthquake areas, Þórhallsson School of Science- and Indriði S. Ríkharðsson Engineering, Id no: , pp 1-100, 2010 [13] Burman, B. V. Reddy, D. Maity, Seismic Analysis of Concrete Gravity Dam Considering Foundation Flexibility and Nonlinearity, The 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG) Goa, India, pp ,1-6 October, 2008 [14] P.G. Asteris, A.D. Tzamtzis, Nonlinear Seismic Response Analysis of Realistic Gravity Dam-Reservoir Systems, Freund Publishing House Ltd. International Journal of Nonlinear Sciences and Numerical Simulation, pp , 4, 2003 [15] Kramer, S. L., Geotechnical Earthquake Engineering, Prentice Hall, New Jersey, [16] Wilson E. L., Three -Dimensional Static and Dynamic Analysis of Structures- a Physical Approach with Emphasis on Earthquake Engineering, Computers & Structures, Inc. University Avenue Berkeley, California, USA., pp.390, First Author: Patil Swapnal Vinayak was born in Dhule District, Maharashtra. She has received Bachelor Degree from North Maharashtra University. She has submitted her project for Master Degree of Structural Engineering. She also published 2-3 papers in International Journals. Her paper has been selected for International Conference to be held on 2 nd to 4 th July, 2015 in SNJB college of Engineering, Chandwad, Dist. Nasik. 1053

Modelling of Concrete Gravity Dam Including Dam-Water-Foundation Rock Interaction

Modelling of Concrete Gravity Dam Including Dam-Water-Foundation Rock Interaction World Applied Sciences Journal 22 (4): 538-546, 2013 ISSN 1818-4952 IDOSI Publications, 2013 DOI: 10.5829/idosi.wasj.2013.22.04.551 Modelling of Concrete Gravity Dam Including Dam-Water-Foundation Rock

More information

STUDY OF DYNAMIC SOIL-STRUCTURE INTERACTION OF CONCRETE GRAVITY DAMS

STUDY OF DYNAMIC SOIL-STRUCTURE INTERACTION OF CONCRETE GRAVITY DAMS STUDY OF DYNAMIC SOIL-STRUCTURE INTERACTION OF CONCRETE GRAVITY DAMS Djamel OUZANDJA 1, Fatiha BENKECHIDA 2, Toufiq OUZANDJA 3, Hamza BELHADED 4 ABSTRACT The safety evaluation of the dams subjected to

More information

Seismic Analysis of Soil-pile Interaction under Various Soil Conditions

Seismic Analysis of Soil-pile Interaction under Various Soil Conditions Seismic Analysis of Soil-pile Interaction under Various Soil Conditions Preeti Codoori Assistant Professor, Department of Civil Engineering, Gokaraju Rangaraju Institute of Engineering and Technology,

More information

NONLINEAR ANALYSIS OF A DAM-RESERVOIR-FOUNDATION SYSTEM UNDER SPATIALLY VARIABLE SEISMIC EXCITATIONS

NONLINEAR ANALYSIS OF A DAM-RESERVOIR-FOUNDATION SYSTEM UNDER SPATIALLY VARIABLE SEISMIC EXCITATIONS October 12-17, 28, Beijing, China NONLINEAR ANALYSIS OF A DAM-RESERVOIR-FOUNDATION SYSTEM UNDER SPATIALLY VARIABLE SEISMIC EXCITATIONS J. Huang 1 and A. Zerva 2 1 Dept. of Civil, Architectural and Environmental

More information

NON-LINEAR ANALYSIS OF SOIL-PILE-STRUCTURE INTERACTION UNDER SEISMIC LOADS

NON-LINEAR ANALYSIS OF SOIL-PILE-STRUCTURE INTERACTION UNDER SEISMIC LOADS NON-LINEAR ANALYSIS OF SOIL-PILE-STRUCTURE INTERACTION UNDER SEISMIC LOADS Yingcai Han 1 and Shin-Tower Wang 2 1 Fluor Canada Ltd., Calgary AB, Canada Email: yingcai.han@fluor.com 2 Ensoft, Inc. Austin,

More information

Dynamic Analysis to Study Soil-Pile Interaction Effects

Dynamic Analysis to Study Soil-Pile Interaction Effects by Pallavi Ravishankar, Neelima Satyam in Indexed in Scopus Compendex and Geobase Elsevier, Chemical Abstract Services-USA, Geo-Ref Information Services- USA, List B of Scientific Journals, Poland, Directory

More information

Behavior of Concrete Dam under Seismic Load

Behavior of Concrete Dam under Seismic Load Behavior of Concrete Dam under Seismic Load A. Hebbouche Ecole Nationale Supérieure d Hydraulique, Blida-Algérie Departement of civil engineering, Saad dahlab university, Blida, Algeria M. Bensaibi Departement

More information

Soil-Structure Interaction in Nonlinear Pushover Analysis of Frame RC Structures: Nonhomogeneous Soil Condition

Soil-Structure Interaction in Nonlinear Pushover Analysis of Frame RC Structures: Nonhomogeneous Soil Condition ABSTRACT: Soil-Structure Interaction in Nonlinear Pushover Analysis of Frame RC Structures: Nonhomogeneous Soil Condition G. Dok ve O. Kırtel Res. Assist., Department of Civil Engineering, Sakarya University,

More information

DYNAMIC ANALYSIS OF PILES IN SAND BASED ON SOIL-PILE INTERACTION

DYNAMIC ANALYSIS OF PILES IN SAND BASED ON SOIL-PILE INTERACTION October 1-17,, Beijing, China DYNAMIC ANALYSIS OF PILES IN SAND BASED ON SOIL-PILE INTERACTION Mohammad M. Ahmadi 1 and Mahdi Ehsani 1 Assistant Professor, Dept. of Civil Engineering, Geotechnical Group,

More information

EFFECTS OF RESERVOIR LENGTH ON DYNAMIC ANALYSIS OF CONCRETE GRAVITY DAMS

EFFECTS OF RESERVOIR LENGTH ON DYNAMIC ANALYSIS OF CONCRETE GRAVITY DAMS The th October -,, Beijing, China EFFECTS OF RESERVOIR LENGTH ON DYNAMIC ANALYSIS OF CONCRETE GRAVITY DAMS A. Fathi and V. Lotfi M.Sc. Student, Dept. of Civil and Environmental Engineering, Amirkabir University

More information

Frequency response analysis of soil-structure interaction for concrete gravity dams

Frequency response analysis of soil-structure interaction for concrete gravity dams Frequency response analysis of soil-structure interaction for concrete gravity dams Anna De Falco 1, Matteo Mori 2 and Giacomo Sevieri 3 1 Dept. of Energy, Systems, Territory and Construction Engineering,

More information

Numerical Modeling of Interface Between Soil and Pile to Account for Loss of Contact during Seismic Excitation

Numerical Modeling of Interface Between Soil and Pile to Account for Loss of Contact during Seismic Excitation Numerical Modeling of Interface Between Soil and Pile to Account for Loss of Contact during Seismic Excitation P. Sushma Ph D Scholar, Earthquake Engineering Research Center, IIIT Hyderabad, Gachbowli,

More information

Model tests and FE-modelling of dynamic soil-structure interaction

Model tests and FE-modelling of dynamic soil-structure interaction Shock and Vibration 19 (2012) 1061 1069 1061 DOI 10.3233/SAV-2012-0712 IOS Press Model tests and FE-modelling of dynamic soil-structure interaction N. Kodama a, * and K. Komiya b a Waseda Institute for

More information

Practical methodology for inclusion of uplift and pore pressures in analysis of concrete dams

Practical methodology for inclusion of uplift and pore pressures in analysis of concrete dams Practical methodology for inclusion of uplift and pore pressures in analysis of concrete dams Michael McKay 1 and Francisco Lopez 2 1 Dams Engineer, GHD Pty 2 Principal Dams/Structural Engineer, GHD Pty

More information

Minimization Solutions for Vibrations Induced by Underground Train Circulation

Minimization Solutions for Vibrations Induced by Underground Train Circulation Minimization Solutions for Vibrations Induced by Underground Train Circulation Carlos Dinis da Gama 1, Gustavo Paneiro 2 1 Professor and Head, Geotechnical Center of IST, Technical University of Lisbon,

More information

NPTEL Video Course on Geotechnical Earthquake Engineering

NPTEL Video Course on Geotechnical Earthquake Engineering NPTEL Video Course on Geotechnical Earthquake Engineering by Prof. Deepankar Choudhury Professor, Dept. of Civil Engg., Indian Institute of Technology (IIT) Bombay Powai, Mumbai 400076, India. Email: dc@civil.iitb.ac.in

More information

Dynamic Analysis of Pile Foundations: Effects of Material Nonlinearity of Soil

Dynamic Analysis of Pile Foundations: Effects of Material Nonlinearity of Soil Dynamic Analysis of Pile Foundations: Effects of Material Nonlinearity of Soil Bal Krishna Maheshwari Asst. Professor, Department of Earthquake Engineering, IIT Roorkee, Roorkee, U.A. 247 667, India (Formerly

More information

Shake Table Study of Soil Structure Interaction Effects in Surface and Embedded Foundations

Shake Table Study of Soil Structure Interaction Effects in Surface and Embedded Foundations Shake Table Study of Soil Structure Interaction Effects in Surface and Embedded Foundations Naghdali Hosseinzadeh Structural Engineering Research Center, International Institute of Earthquake Engineering

More information

NONLINEAR SEISMIC SOIL-STRUCTURE (SSI) ANALYSIS USING AN EFFICIENT COMPLEX FREQUENCY APPROACH

NONLINEAR SEISMIC SOIL-STRUCTURE (SSI) ANALYSIS USING AN EFFICIENT COMPLEX FREQUENCY APPROACH NONLINEAR SEISMIC SOIL-STRUCTURE (SSI) ANALYSIS USING AN EFFICIENT COMPLEX FREQUENCY APPROACH Dan M. GHIOCEL 1 ABSTRACT The paper introduces a novel approach for modeling nonlinear hysteretic behavior

More information

Investigation of crack development in concrete dams due to water level fluctuation during earthquakes

Investigation of crack development in concrete dams due to water level fluctuation during earthquakes River Basin Management VIII 271 Investigation of crack development in concrete dams due to water level fluctuation during earthquakes S. A. Neshaei 1, M. K. Abadi 2 & R. Vahedzadegan 3 1 Faculty of Engineering,

More information

Fracture Test & Fracture Parameters of Self Compacting Concrete using ANSYS. Zeel Vashi 1,Megha Thomas 2 I. INTRODUCTION

Fracture Test & Fracture Parameters of Self Compacting Concrete using ANSYS. Zeel Vashi 1,Megha Thomas 2 I. INTRODUCTION International Journal of Technical Innovation in Modern Engineering & Science (IJTIMES) Impact Factor: 3.45 (SJIF-2015), e-issn: 2455-2584 Volume 3, Issue 05, May-2017 Fracture Test & Fracture Parameters

More information

AN IMPORTANT PITFALL OF PSEUDO-STATIC FINITE ELEMENT ANALYSIS

AN IMPORTANT PITFALL OF PSEUDO-STATIC FINITE ELEMENT ANALYSIS AN IMPORTANT PITFALL OF PSEUDO-STATIC FINITE ELEMENT ANALYSIS S. Kontoe, L. Pelecanos & D.M. Potts ABSTRACT: Finite Element (FE) pseudo-static analysis can provide a good compromise between simplified

More information

ALASKA ENERGY AUTHORITY AEA ENGINEERING FEASIBILITY REPORT. Appendix B8. Finite Element Analysis

ALASKA ENERGY AUTHORITY AEA ENGINEERING FEASIBILITY REPORT. Appendix B8. Finite Element Analysis ALASKA ENERGY AUTHORITY AEA11-022 ENGINEERING FEASIBILITY REPORT Appendix B8 Finite Element Analysis Susitna-Watana Hydroelectric Project Alaska Energy Authority FERC Project No. 14241 December 2014 Seismic

More information

Combined Effect of Soil Structure Interaction and Infill Wall Stiffness on Building_- A Review

Combined Effect of Soil Structure Interaction and Infill Wall Stiffness on Building_- A Review Combined Effect of Soil Structure Interaction and Infill Wall Stiffness on Building_- A Review Prof. Wakchaure M. R a* a Dean & Asso. Professor, Dept.of Civil Engineering, Amrutvahini College of Engineering,

More information

NUMERICAL ANALYSIS OF A PILE SUBJECTED TO LATERAL LOADS

NUMERICAL ANALYSIS OF A PILE SUBJECTED TO LATERAL LOADS IGC 009, Guntur, INDIA NUMERICAL ANALYSIS OF A PILE SUBJECTED TO LATERAL LOADS Mohammed Younus Ahmed Graduate Student, Earthquake Engineering Research Center, IIIT Hyderabad, Gachibowli, Hyderabad 3, India.

More information

EDEM DISCRETIZATION (Phase II) Normal Direction Structure Idealization Tangential Direction Pore spring Contact spring SPRING TYPES Inner edge Inner d

EDEM DISCRETIZATION (Phase II) Normal Direction Structure Idealization Tangential Direction Pore spring Contact spring SPRING TYPES Inner edge Inner d Institute of Industrial Science, University of Tokyo Bulletin of ERS, No. 48 (5) A TWO-PHASE SIMPLIFIED COLLAPSE ANALYSIS OF RC BUILDINGS PHASE : SPRING NETWORK PHASE Shanthanu RAJASEKHARAN, Muneyoshi

More information

Analysis of Concrete Walls under Earthquake Action Influence from different types of Foundation

Analysis of Concrete Walls under Earthquake Action Influence from different types of Foundation Analysis of Concrete Walls under Earthquake Action Influence from different types of Foundation E.R. Thorhallsson & H.S. Olafsson Reykjavik University, Iceland ABSTRACT In these paper concrete walls are

More information

Theoretical Modal Analysis of Freely and Simply Supported RC Slabs M. S. Ahmed, F. A. Mohammad

Theoretical Modal Analysis of Freely and Simply Supported RC Slabs M. S. Ahmed, F. A. Mohammad Theoretical Modal Analysis of Freely and Simply Supported RC Slabs M. S. Ahmed, F. A. Mohammad Abstract This paper focuses on the dynamic behavior of reinforced concrete (RC) slabs. Therefore, the theoretical

More information

COMPARISON BETWEEN 2D AND 3D ANALYSES OF SEISMIC STABILITY OF DETACHED BLOCKS IN AN ARCH DAM

COMPARISON BETWEEN 2D AND 3D ANALYSES OF SEISMIC STABILITY OF DETACHED BLOCKS IN AN ARCH DAM COMPARISON BETWEEN 2D AND 3D ANALYSES OF SEISMIC STABILITY OF DETACHED BLOCKS IN AN ARCH DAM Sujan MALLA 1 ABSTRACT The seismic safety of the 147 m high Gigerwald arch dam in Switzerland was assessed for

More information

Seismic Analyses of Concrete Gravity Dam with 3D Full Dam Model

Seismic Analyses of Concrete Gravity Dam with 3D Full Dam Model Seismic Analyses of Concrete Gravity Dam with 3D Full Dam Model Haibo Wang, Deyu Li & Huichen Yang China Institute of Water Resources and Hydropower Research, Beijing, China SUMMARY: Seismic analyses of

More information

Static & Dynamic. Analysis of Structures. Edward L.Wilson. University of California, Berkeley. Fourth Edition. Professor Emeritus of Civil Engineering

Static & Dynamic. Analysis of Structures. Edward L.Wilson. University of California, Berkeley. Fourth Edition. Professor Emeritus of Civil Engineering Static & Dynamic Analysis of Structures A Physical Approach With Emphasis on Earthquake Engineering Edward LWilson Professor Emeritus of Civil Engineering University of California, Berkeley Fourth Edition

More information

Modal Analysis of Single Rectangular Cantilever Plate by Mathematically, FEA and Experimental

Modal Analysis of Single Rectangular Cantilever Plate by Mathematically, FEA and Experimental Modal Analysis of Single Rectangular Cantilever Plate by Mathematically, FEA and Experimental Ashish R. Sonawane 1, Poonam S. Talmale 2 1Research scholar, Late G. N. Sapkal College of Engineering, Nashik,

More information

Application of pseudo-symmetric technique in dynamic analysis of concrete gravity dams

Application of pseudo-symmetric technique in dynamic analysis of concrete gravity dams Application of pseudo-symmetric technique in dynamic analysis of concrete gravity dams V. Lotfi Department of Civil and Environmental Engineering, Amirkabir University, Iran Abstract A new approach is

More information

Investigation of Pile- Soil Interaction Subjected to Lateral Loads in Layered Soils

Investigation of Pile- Soil Interaction Subjected to Lateral Loads in Layered Soils American J. of Engineering and Applied Sciences (): 76-8, 008 ISSN 9-700 008 Science Publications Investigation of Pile- Soil Interaction Subjected to Lateral Loads in Layered Soils A. Avaei, Abdoul R.

More information

NONLINEAR DYNAMIC SOIL-STRUCTURE INTERACTION IN EARTHQUAKE ENGINEERING

NONLINEAR DYNAMIC SOIL-STRUCTURE INTERACTION IN EARTHQUAKE ENGINEERING NONLINEAR DYNAMIC SOIL-STRUCTURE INTERACTION IN EARTHQUAKE ENGINEERING Alex NIETO-FERRO1, Georges DEVESA1, Nicolas GREFFET1, Matthieu CAUDRON2 and Didier CLOUTEAU3 ABSTRACT Dynamic soil-structure interaction

More information

SHAKE TABLE STUDY OF SOIL STRUCTURE INTERACTION EFFECTS ON SEISMIC RESPONSE OF SINGLE AND ADJACENT BUILDINGS

SHAKE TABLE STUDY OF SOIL STRUCTURE INTERACTION EFFECTS ON SEISMIC RESPONSE OF SINGLE AND ADJACENT BUILDINGS 13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 2004 Paper No. 1918 SHAKE TABLE STUDY OF SOIL STRUCTURE INTERACTION EFFECTS ON SEISMIC RESPONSE OF SINGLE AND ADJACENT

More information

Embedded Foundation with Different Parameters under Dynamic Excitations

Embedded Foundation with Different Parameters under Dynamic Excitations 13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 2004 Paper No. 2287 Embedded Foundation with Different Parameters under Dynamic Excitations Jaya K P 1 and Meher Prasad

More information

Behaviour of Earth Dam under Seismic Load Considering Nonlinearity of the Soil

Behaviour of Earth Dam under Seismic Load Considering Nonlinearity of the Soil Open Journal of Civil Engineering, 216, 6, 75-83 Published Online March 216 in SciRes. http://www.scirp.org/journal/ojce http://dx.doi.org/1.4236/ojce.216.627 Behaviour of Earth Dam under Seismic Load

More information

VIBRATION ANALYSIS OF AN AUTOMOTIVE SILENCER

VIBRATION ANALYSIS OF AN AUTOMOTIVE SILENCER VIBRATION ANALYSIS OF AN AUTOMOTIVE SILENCER K. R. Gadre PG Student, Department Mechanical Engg., Sinhgad College of Engineering, Pune T. A. Jadhav Associate Professor, Department Mechanical Engg, Sinhgad

More information

Construction of Consistent Mass Spring Model Based on Meta-Modeling Theory for Seismic Response Analysis of Large Scale Bridge Structures

Construction of Consistent Mass Spring Model Based on Meta-Modeling Theory for Seismic Response Analysis of Large Scale Bridge Structures 6 th International Conference on Structural Engineering and Construction Management 2015, SECM/15/35 Construction of Consistent Mass Spring Model Based on Meta-Modeling Theory for Seismic Response Analysis

More information

Lateral load-deflection behaviour of single piles - An analysis of the small pile deflections

Lateral load-deflection behaviour of single piles - An analysis of the small pile deflections Lateral load-deflection behaviour of single piles - An analysis of the small pile deflections Abderrazak Tharrafi 1, and Ali Bouafia 1,* 1 University Saâd Dahleb at Blida, Faculty of Technology, Dept.

More information

A simple lumped mass-damper idealization for dam-reservoir- foundation system for seismic analysis

A simple lumped mass-damper idealization for dam-reservoir- foundation system for seismic analysis ICCM2015, 14-17 th July, Auckland, NZ A simple lumped mass-damper idealization for dam-reservoir- foundation system for seismic analysis *D.K. Paul¹, A. Banerjee 2, 3, R.N. Dubey 1, M.K.Alam-Chowdhury

More information

IZMIT BAY BRIDGE SOUTH APPROACH VIADUCT: SEISMIC DESIGN NEXT TO THE NORTH ANATOLIAN FAULT

IZMIT BAY BRIDGE SOUTH APPROACH VIADUCT: SEISMIC DESIGN NEXT TO THE NORTH ANATOLIAN FAULT Istanbul Bridge Conference August 11-13, 2014 Istanbul, Turkey IZMIT BAY BRIDGE SOUTH APPROACH VIADUCT: SEISMIC DESIGN NEXT TO THE NORTH ANATOLIAN FAULT A. Giannakou 1, J. Chacko 2 and W. Chen 3 ABSTRACT

More information

Address for Correspondence

Address for Correspondence Research Article EXPERIMENT STUDY OF DYNAMIC RESPONSE OF SOFT STOREY BUILDING MODEL C. S. Sanghvi 1, H S Patil 2 and B J Shah 3 Address for Correspondence 1 Associate Professor, Applied Mechanics Department,

More information

Dynamic behavior of turbine foundation considering full interaction among facility, structure and soil

Dynamic behavior of turbine foundation considering full interaction among facility, structure and soil Dynamic behavior of turbine foundation considering full interaction among facility, structure and soil Fang Ming Scholl of Civil Engineering, Harbin Institute of Technology, China Wang Tao Institute of

More information

Influence of First Shape Factor in Behaviour of Rubber Bearings Base Isolated Buildings.

Influence of First Shape Factor in Behaviour of Rubber Bearings Base Isolated Buildings. ISSN (Online) 2347-327 Influence of First Shape Factor in Behaviour of Rubber Bearings Base Isolated Buildings. Luan MURTAJ 1, Enkelejda MURTAJ 1 Pedagogue, Department of Structural Mechanics Faculty of

More information

Comparison Study of Static and Dynamic Earth Pressure behind the Retaining Wall

Comparison Study of Static and Dynamic Earth Pressure behind the Retaining Wall IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-1684,p-ISSN: 232-334X, Volume 12, Issue 3 Ver. I (May. - Jun. 215), PP 77-84 www.iosrjournals.org Comparison Study of Static and

More information

Seismic Response Analysis of Structure Supported by Piles Subjected to Very Large Earthquake Based on 3D-FEM

Seismic Response Analysis of Structure Supported by Piles Subjected to Very Large Earthquake Based on 3D-FEM Seismic Response Analysis of Structure Supported by Piles Subjected to Very Large Earthquake Based on 3D-FEM *Hisatoshi Kashiwa 1) and Yuji Miyamoto 2) 1), 2) Dept. of Architectural Engineering Division

More information

Earthquake Analysis of Arch Dams

Earthquake Analysis of Arch Dams Earthquake Analysis of Arch Dams Anil K. Chopra Electricity Generating Authority of Thailand Bangkok, Thailand December 7-8, 2010 Earthquake Analysis of Arch Dams: Factors To Be Considered Focus on linear

More information

THEME A. Analysis of the elastic behaviour of La Aceña arch-gravity dam

THEME A. Analysis of the elastic behaviour of La Aceña arch-gravity dam THEME A Analysis of the elastic behaviour of La Aceña arch-gravity dam Gjorgi KOKALANOV, Professor, Faculty of Civil Eng., Skopje, Republic of Macedonia Ljubomir TANČEV, Professor, Faculty of Civil Eng.,

More information

Seismic analysis of horseshoe tunnels under dynamic loads due to earthquakes

Seismic analysis of horseshoe tunnels under dynamic loads due to earthquakes University of Wollongong Research Online Coal Operators' Conference Faculty of Engineering and Information Sciences 2010 Seismic analysis of horseshoe tunnels under dynamic loads due to earthquakes Navid

More information

Nonlinear Elastic Analysis of Structural Frame Under Dynamic Load Condition

Nonlinear Elastic Analysis of Structural Frame Under Dynamic Load Condition ISSN 2395-1621 Nonlinear Elastic Analysis of Structural Frame Under Dynamic Load Condition #1 Mr.Vrushabha sagar Patil, #2 Mr.D.G.Joshi, #3 Mr.Kiran Bhagate # 1 vsagar.patil@gmail.com 2 dinesh.joshi@sinhgad.edu

More information

Research Article Soil Saturated Simulation in Embankment during Strong Earthquake by Effect of Elasticity Modulus

Research Article Soil Saturated Simulation in Embankment during Strong Earthquake by Effect of Elasticity Modulus Modelling and Simulation in Engineering, Article ID 191460, 7 pages http://dx.doi.org/10.1155/2014/191460 Research Article Soil Saturated Simulation in Embankment during Strong Earthquake by Effect of

More information

Dynamic Analysis of Coupling Vehicle-Bridge System Using Finite Prism Method

Dynamic Analysis of Coupling Vehicle-Bridge System Using Finite Prism Method Dynamic Analysis of Coupling Vehicle-Bridge System Using Finite Prism Method A. T. Saeed and Zhongfu Xiang Abstract To investigate the transient responses of bridges under moving vehicles, Finite Prism

More information

LINEAR AND NONLINEAR BUCKLING ANALYSIS OF STIFFENED CYLINDRICAL SUBMARINE HULL

LINEAR AND NONLINEAR BUCKLING ANALYSIS OF STIFFENED CYLINDRICAL SUBMARINE HULL LINEAR AND NONLINEAR BUCKLING ANALYSIS OF STIFFENED CYLINDRICAL SUBMARINE HULL SREELATHA P.R * M.Tech. Student, Computer Aided Structural Engineering, M A College of Engineering, Kothamangalam 686 666,

More information

Selection of Rayleigh Damping Coefficients for Seismic Response Analysis of Soil Layers

Selection of Rayleigh Damping Coefficients for Seismic Response Analysis of Soil Layers Selection of Rayleigh Damping Coefficients for Seismic Response Analysis of Soil Layers Huai-Feng Wang, Meng-Lin Lou, Ru-Lin Zhang Abstract One good analysis method in seismic response analysis is direct

More information

Modal Analysis of Bridge Structure Using Finite Element Analysis

Modal Analysis of Bridge Structure Using Finite Element Analysis IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-684,p-ISSN: 2320-334, Volume 3, Issue 4 Ver. IV (Jul. - Aug. 206), PP 06-0 www.iosrjournals.org Modal Analysis of Bridge Structure

More information

EFFECT OF SEISMIC WAVE INCLINATION ON STRUCTURAL RESPONSE

EFFECT OF SEISMIC WAVE INCLINATION ON STRUCTURAL RESPONSE EFFECT OF SEISMIC WAVE INCLINATION ON STRUCTURAL RESPONSE t I M. Tabatabaie,l A.M. ASCEj N. Abrahamson,2 and J. P. Singh, M. ASCE ABSTRACT A new procedure is developed using the computer program SASSI

More information

Deep Foundations 2. Load Capacity of a Single Pile

Deep Foundations 2. Load Capacity of a Single Pile Deep Foundations 2 Load Capacity of a Single Pile All calculations of pile capacity are approximate because it is almost impossible to account for the variability of soil types and the differences in the

More information

Numerical Modelling of Dynamic Earth Force Transmission to Underground Structures

Numerical Modelling of Dynamic Earth Force Transmission to Underground Structures Numerical Modelling of Dynamic Earth Force Transmission to Underground Structures N. Kodama Waseda Institute for Advanced Study, Waseda University, Japan K. Komiya Chiba Institute of Technology, Japan

More information

Evaluation of short piles bearing capacity subjected to lateral loading in sandy soil

Evaluation of short piles bearing capacity subjected to lateral loading in sandy soil Evaluation of short piles bearing capacity subjected to lateral loading in sandy soil [Jafar Bolouri Bazaz, Javad Keshavarz] Abstract Almost all types of piles are subjected to lateral loads. In many cases,

More information

Study of Circular and Elliptical Holes as a Stress Relieving Feature in Spur Gear

Study of Circular and Elliptical Holes as a Stress Relieving Feature in Spur Gear Study of Circular and Elliptical Holes as a Stress Relieving Feature in Spur Gear Prof. S.B.Naik 1, Mr. Sujit R. Gavhane 2 Asst. Prof. Department of Mechanical Engineering, Walchand Institute of Technology,

More information

INFLUENCE OF THE SOIL-STRUCTURE INTERACTION ON THE SEISMIC BEHAVIOR OF BUILDINGS ON SHALLOW FOUNDATIONS

INFLUENCE OF THE SOIL-STRUCTURE INTERACTION ON THE SEISMIC BEHAVIOR OF BUILDINGS ON SHALLOW FOUNDATIONS Geotech., Const. Mat. and Env., ISSN:2186-2982(P), 2186-2990(O), Japan INFLUENCE OF THE SOIL-STRUCTURE INTERACTION ON THE SEISMIC BEHAVIOR OF BUILDINGS ON SHALLOW FOUNDATIONS Z. Benadla,. Hamdaoui, S.

More information

COMPARISON OF LABVIEW WITH SAP2000 AND NONLIN FOR STRUCTURAL DYNAMICS PROBLEMS

COMPARISON OF LABVIEW WITH SAP2000 AND NONLIN FOR STRUCTURAL DYNAMICS PROBLEMS International Journal of Civil Engineering and Technology (IJCIET) Volume 8, Issue 2, February 2017, pp. 226 235 Article ID: IJCIET_08_02_025 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=8&itype=2

More information

Static Pile Head Impedance using 3D Nonlinear FEM Analysis

Static Pile Head Impedance using 3D Nonlinear FEM Analysis Static Pile Head Impedance using 3D Nonlinear FEM Analysis Ichiro NAGASHIMA Technology Center, Taisei Corporation, 344-1 Nasecho, Totsuka-ku, Yokohama 245-51, Japan, ichiro.nagashima@sakura.taisei.co.jp

More information

Influence of the Soil Structure Interaction on the Fundamental Period of Large Dynamic Machine Foundation

Influence of the Soil Structure Interaction on the Fundamental Period of Large Dynamic Machine Foundation Influence of the Soil Structure Interaction on the Fundamental Period of Large Dynamic Machine Foundation Jingbo Liu, Wenhui Wang, Xiaobo Zhang, Dongdong Zhao Department of Civil Engineering, Tsinghua

More information

Back Analysis of Measured Displacements of Tunnels

Back Analysis of Measured Displacements of Tunnels Rock Mechanics and Rock Engineering 16, 173--180 (1983) Rock Mechanics and Rock Engineering 9 by Springer-Verlag 1983 Back Analysis of Measured Displacements of Tunnels By S. Sakurai and K. Takeuchi Kobe

More information

Codal Provisions IS 1893 (Part 1) 2002

Codal Provisions IS 1893 (Part 1) 2002 Abstract Codal Provisions IS 1893 (Part 1) 00 Paresh V. Patel Assistant Professor, Civil Engineering Department, Nirma Institute of Technology, Ahmedabad 38481 In this article codal provisions of IS 1893

More information

Effect of embedment depth and stress anisotropy on expansion and contraction of cylindrical cavities

Effect of embedment depth and stress anisotropy on expansion and contraction of cylindrical cavities Effect of embedment depth and stress anisotropy on expansion and contraction of cylindrical cavities Hany El Naggar, Ph.D., P. Eng. and M. Hesham El Naggar, Ph.D., P. Eng. Department of Civil Engineering

More information

BENCHMARK LINEAR FINITE ELEMENT ANALYSIS OF LATERALLY LOADED SINGLE PILE USING OPENSEES & COMPARISON WITH ANALYTICAL SOLUTION

BENCHMARK LINEAR FINITE ELEMENT ANALYSIS OF LATERALLY LOADED SINGLE PILE USING OPENSEES & COMPARISON WITH ANALYTICAL SOLUTION BENCHMARK LINEAR FINITE ELEMENT ANALYSIS OF LATERALLY LOADED SINGLE PILE USING OPENSEES & COMPARISON WITH ANALYTICAL SOLUTION Ahmed Elgamal and Jinchi Lu October 07 Introduction In this study: I) The response

More information

BEHAVIOR OF BUILDING FRAMES ON SOILS OF VARYING PLASTICITY INDEX

BEHAVIOR OF BUILDING FRAMES ON SOILS OF VARYING PLASTICITY INDEX International Journal of Civil Engineering and Technology (IJCIET) Volume 8, Issue 1, January 2017, pp. 623 627 Article ID: IJCIET_08_01_072 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=8&itype=1

More information

TWO DIMENSIONAL MODELING AND STABILITY ANALYSIS OF SLOPES OVERLAYING TO SHAHID RAGAEE POWER PLANT

TWO DIMENSIONAL MODELING AND STABILITY ANALYSIS OF SLOPES OVERLAYING TO SHAHID RAGAEE POWER PLANT 4 th International Conference on Earthquake Geotechnical Engineering June 25-28, 2007 Paper No. 1637 TWO DIMENSIONAL MODELING AND STABILITY ANALYSIS OF SLOPES OVERLAYING TO SHAHID RAGAEE POWER PLANT Mohammad

More information

SOIL-STRUCTURE INTERACTION, WAVE PASSAGE EFFECTS AND ASSYMETRY IN NONLINEAR SOIL RESPONSE

SOIL-STRUCTURE INTERACTION, WAVE PASSAGE EFFECTS AND ASSYMETRY IN NONLINEAR SOIL RESPONSE SOIL-STRUCTURE INTERACTION, WAVE PASSAGE EFFECTS AND ASSYMETRY IN NONLINEAR SOIL RESPONSE Mihailo D. Trifunac Civil Eng. Department University of Southern California, Los Angeles, CA E-mail: trifunac@usc.edu

More information

EXAMPLE OF PILED FOUNDATIONS

EXAMPLE OF PILED FOUNDATIONS EXAMPLE OF PILED FOUNDATIONS The example developed below is intended to illustrate the various steps involved in the determination of the seismic forces developed in piles during earthquake shaking. The

More information

Dynamic Response of EPS Blocks /soil Sandwiched Wall/embankment

Dynamic Response of EPS Blocks /soil Sandwiched Wall/embankment Proc. of Second China-Japan Joint Symposium on Recent Development of Theory and Practice in Geotechnology, Hong Kong, China Dynamic Response of EPS Blocks /soil Sandwiched Wall/embankment J. C. Chai 1

More information

EFFECTS OF THERMAL STRESSES AND BOUNDARY CONDITIONS ON THE RESPONSE OF A RECTANGULAR ELASTIC BODY MADE OF FGM

EFFECTS OF THERMAL STRESSES AND BOUNDARY CONDITIONS ON THE RESPONSE OF A RECTANGULAR ELASTIC BODY MADE OF FGM Proceedings of the International Conference on Mechanical Engineering 2007 (ICME2007) 29-31 December 2007, Dhaka, Bangladesh ICME2007-AM-76 EFFECTS OF THERMAL STRESSES AND BOUNDARY CONDITIONS ON THE RESPONSE

More information

PILE-SUPPORTED RAFT FOUNDATION SYSTEM

PILE-SUPPORTED RAFT FOUNDATION SYSTEM PILE-SUPPORTED RAFT FOUNDATION SYSTEM Emre Biringen, Bechtel Power Corporation, Frederick, Maryland, USA Mohab Sabry, Bechtel Power Corporation, Frederick, Maryland, USA Over the past decades, there has

More information

Modal and Static Structural Analysis of Exhaust Collector Box for Compressor test facility

Modal and Static Structural Analysis of Exhaust Collector Box for Compressor test facility Modal and Static Structural Analysis of Exhaust Collector Box for Compressor test facility Shankar Gouda 1, Praveen M P 2 P G student, Department of Mechanical Engineering, EPCET, Bangalore, Karnataka,

More information

Determination of Natural Frequency of Transportation Container by Experimental Modal Analysis

Determination of Natural Frequency of Transportation Container by Experimental Modal Analysis Determination of Natural Frequency of Transportation Container by Experimental Modal Analysis S.S.Pachpore1, S.N.Khan 2, Dr. S.S. Salunkhe 3,V.J.Jagtap 4 1( Student, RSSOER, JSPM NarheTecnicalCampus, Pune,

More information

INELASTIC RESPONSES OF LONG BRIDGES TO ASYNCHRONOUS SEISMIC INPUTS

INELASTIC RESPONSES OF LONG BRIDGES TO ASYNCHRONOUS SEISMIC INPUTS 13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 24 Paper No. 638 INELASTIC RESPONSES OF LONG BRIDGES TO ASYNCHRONOUS SEISMIC INPUTS Jiachen WANG 1, Athol CARR 1, Nigel

More information

2766. Differential quadrature method (DQM) for studying initial imperfection effects and pre- and post-buckling vibration of plates

2766. Differential quadrature method (DQM) for studying initial imperfection effects and pre- and post-buckling vibration of plates 2766. Differential quadrature method (DQM) for studying initial imperfection effects and pre- and post-buckling vibration of plates Hesam Makvandi 1, Shapour Moradi 2, Davood Poorveis 3, Kourosh Heidari

More information

CAPACITY DESIGN FOR TALL BUILDINGS WITH MIXED SYSTEM

CAPACITY DESIGN FOR TALL BUILDINGS WITH MIXED SYSTEM 13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 24 Paper No. 2367 CAPACITY DESIGN FOR TALL BUILDINGS WITH MIXED SYSTEM M.UMA MAHESHWARI 1 and A.R.SANTHAKUMAR 2 SUMMARY

More information

Numerical simulation of the coil spring and investigation the impact of tension and compression to the spring natural frequencies

Numerical simulation of the coil spring and investigation the impact of tension and compression to the spring natural frequencies Numerical simulation of the coil spring and investigation the impact of tension and compression to the spring natural frequencies F. D. Sorokin 1, Zhou Su 2 Bauman Moscow State Technical University, Moscow,

More information

DETERMINATION OF PERFORMANCE POINT IN CAPACITY SPECTRUM METHOD

DETERMINATION OF PERFORMANCE POINT IN CAPACITY SPECTRUM METHOD ISSN (Online) : 2319-8753 ISSN (Print) : 2347-6710 International Journal of Innovative Research in Science, Engineering and Technology An ISO 3297: 2007 Certified Organization, Volume 2, Special Issue

More information

ON THE PREDICTION OF EXPERIMENTAL RESULTS FROM TWO PILE TESTS UNDER FORCED VIBRATIONS

ON THE PREDICTION OF EXPERIMENTAL RESULTS FROM TWO PILE TESTS UNDER FORCED VIBRATIONS Transactions, SMiRT-24 ON THE PREDICTION OF EXPERIMENTAL RESULTS FROM TWO PILE TESTS UNDER FORCED VIBRATIONS 1 Principal Engineer, MTR & Associates, USA INTRODUCTION Mansour Tabatabaie 1 Dynamic response

More information

Seismic Slope Stability

Seismic Slope Stability ISSN (e): 2250 3005 Volume, 06 Issue, 04 April 2016 International Journal of Computational Engineering Research (IJCER) Seismic Slope Stability Mohammad Anis 1, S. M. Ali Jawaid 2 1 Civil Engineering,

More information

The Dynamic Response Analysis of Concrete Gravity Dam under the Earthquake

The Dynamic Response Analysis of Concrete Gravity Dam under the Earthquake Copyright 2013 Tech Science Press SL, vol.9, no.1, pp.23-36, 2013 The Dynamic Response Analysis of Concrete Gravity Dam under the Earthquake Yang Lu 1, Li Shi-Min 1, Cao Peng 2 and Shen Xin-Pu 1 Abstract:

More information

Effect of Angular movement of Lifting Arm on Natural Frequency of Container Lifting Mechanism using Finite Element Modal Analysis

Effect of Angular movement of Lifting Arm on Natural Frequency of Container Lifting Mechanism using Finite Element Modal Analysis Effect of Angular movement of Lifting Arm on Natural Frequency of Container Lifting Mechanism using Finite Element Modal Analysis Khodu M Dhameliya, 2 Utpal V Shah, 3 Dhaval Makwana, 4 Mansi Yadav, 5 Ishankumar

More information

Back Calculation of Rock Mass Modulus using Finite Element Code (COMSOL)

Back Calculation of Rock Mass Modulus using Finite Element Code (COMSOL) Back Calculation of Rock Mass Modulus using Finite Element Code (COMSOL) Amirreza Ghasemi 1. Introduction Deformability is recognized as one of the most important parameters governing the behavior of rock

More information

3-D FINITE ELEMENT NONLINEAR DYNAMIC ANALYSIS FOR SOIL-PILE-STRUCTURE INTERACTION

3-D FINITE ELEMENT NONLINEAR DYNAMIC ANALYSIS FOR SOIL-PILE-STRUCTURE INTERACTION 13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-, 4 Paper No. 157 3-D FINITE ELEMENT NONLINEAR DYNAMIC ANALYSIS FOR SOIL-PILE-STRUCTURE INTERACTION B.K. MAHESHWARI 1,

More information

Visco-elasto-plastic Earthquake Shear Hysteretic Response of Geomaterials

Visco-elasto-plastic Earthquake Shear Hysteretic Response of Geomaterials Visco-elasto-plastic Earthquake Shear Hysteretic Response of Geomaterials Zamila Harichane Associate Professor Geomaterials laboratory, Civil Engineering Department, University of Chlef, Chlef 02000, Algeria

More information

Liquefaction and Foundations

Liquefaction and Foundations Liquefaction and Foundations Amit Prashant Indian Institute of Technology Gandhinagar Short Course on Seismic Design of Reinforced Concrete Buildings 26 30 November, 2012 What is Liquefaction? Liquefaction

More information

MODAL ANALYSIS OF BEAM THROUGH ANALYTICALLY AND FEM

MODAL ANALYSIS OF BEAM THROUGH ANALYTICALLY AND FEM MODAL ANALYSIS OF BEAM THROUGH ANALYTICALLY AND FEM Ankit Gautam 1, Jai Kumar Sharma 2, Pooja Gupta 3 1,3 Department of civil Engineering, MAIIT, Kota (India) 2 Department of Mechanical Engineering, Rajasthan

More information

Effects of perimetrical and vertical joint opening on the seismic response of a concrete arch dam

Effects of perimetrical and vertical joint opening on the seismic response of a concrete arch dam Effects of perimetrical and vertical joint opening on the seismic response of a concrete arch dam Soheil RAZAVI DARBAR', Hiroyuki WATANABE' *Ph.D. Candidate, Earthquake Engineering Laboratory, Department

More information

Topology Optimization of Low Frequency Structure with Application to Vibration Energy Harvester

Topology Optimization of Low Frequency Structure with Application to Vibration Energy Harvester Topology Optimization of Low Frequency Structure with Application to Vibration Energy Harvester Surendra Singh, A. Narayana Reddy, Deepak Sharma Department of Mechanical Engineering, Indian Institute of

More information

Effective stress analysis of pile foundations in liquefiable soil

Effective stress analysis of pile foundations in liquefiable soil Effective stress analysis of pile foundations in liquefiable soil H. J. Bowen, M. Cubrinovski University of Canterbury, Christchurch, New Zealand. M. E. Jacka Tonkin and Taylor Ltd., Christchurch, New

More information

Towards Efficient Finite Element Model Review Dr. Richard Witasse, Plaxis bv (based on the original presentation of Dr.

Towards Efficient Finite Element Model Review Dr. Richard Witasse, Plaxis bv (based on the original presentation of Dr. Towards Efficient Finite Element Model Review Dr. Richard Witasse, Plaxis bv (based on the original presentation of Dr. Brinkgreve) Journée Technique du CFMS, 16 Mars 2011, Paris 1/32 Topics FEA in geotechnical

More information

ANALYSIS RADIAL FOLDED PLATE

ANALYSIS RADIAL FOLDED PLATE ANALYSIS RADIAL FOLDED PLATE Ms.Pranoti Satish Bhamare 1, Prajakta S. Bramhankar 2, Pooja G. Baviskar 3 1,2,3 Assistant Professor, Department of Civil Engineering, Guru Gobind Singh College of Engineering

More information

EMEA. Liudmila Feoktistova Engineer Atomenergoproekt

EMEA. Liudmila Feoktistova Engineer Atomenergoproekt EMEA Liudmila Feoktistova Engineer Atomenergoproekt Dr. Adolf Birbraer, Atomenergoproekt Dr. Alexandr Roleder, Atomenergoproekt Dmitry Mikhaluk, St. Petersburg State Polytechnical University Finite element

More information

Micromechanical analysis of FRP hybrid composite lamina for in-plane transverse loading

Micromechanical analysis of FRP hybrid composite lamina for in-plane transverse loading Indian Journal of Engineering & Materials Sciences Vol. 15, October 2008, pp. 382-390 Micromechanical analysis of FRP hybrid composite lamina for in-plane transverse loading K Sivaji Babu a *, K Mohana

More information