Static and Dynamic Analyses of Concrete Dams
|
|
- Arthur Dean
- 5 years ago
- Views:
Transcription
1 Dr Aïssa Mellal, Civil Engineer STUCKY SA, Switzerland NUMERICS IN GEOTECHNICS AND STRUCTURES August 2012, EPFL, Lausanne
2 Outline o Introduction o Types of Concrete Dams o Purpose of Numerical Analyses of Dams o Investigated Issues o Illustrative Examples Selected Topics o Conclusion
3 Introduction Dams: Various types: earth, rock-fill, concrete, CVC, RCC, CFRD Complex massive structures: high impact (safety, environment) Evolving structures: rehabilitation/reinforcement (age), heightening Computing capabilities: Various software/tools Modeling of complex phenomena
4
5 Types of Concrete Dams Constraints: Valley shape (U, V ) Economical optimization (material availability, transport ) Dam function (storage, hydroelectricity, irrigation, flood control ) Gravity Dams Arch Dams Type Buttress Dams Weir Dams
6 Grande Dixence gravity dam (H = 285 m) Luzzone arch dam (H = 225 m) Lucendro buttress dam (H = 73 m) Verbois weir dam (H = 34 m)
7 Purpose of Numerical Analyses of Dams New Construction Project Heightening Project Context Rehabilitation / Strenghtening Project Regulatory Safety Assessment
8 Construction of Dernier dam Heightening of Cambambe Dam Strenghtening of Les Toules dam Seismic safety assessment of Spitallamm dam
9 Investigated Issues Topics: Shape/geometry optimization: new structures (feasibility studies) Strength assessment: existing structures Required strength: new structures Transient thermal analyses: early age concrete, model calibration Sliding/overturning stability: dam / potentially detaching blocks Interaction existing/new structures: heightening / strenghtening/ rehabilitation Operation safety of hydromechanical equipments (gates)
10 Seismic safety assessment of an arch dam
11 Seismic safety assessment of an arch dam Y Z X Finite element model of the dam (downstream view)
12 Seismic safety assessment of an arch dam LB RB US face s max = s RB LB DS face s max = s Envelope of dynamic stresses (full reservoir level)
13 Contrainte [MPa] - Compression / + Traction Seismic safety assessment of an arch dam s max = s 12 Contrainte principale majeure S1 -Lac plein - Séisme 1 CH Contrainte S1 Temps [s] Résistance dynamique à la traction (limite OFEN) Envelope of major principal stresses S1 Time-history of major principal stress S1 Major principal stresses at time t = s Directions of principal stresses at time t = s
14 Heightening of an arch dam Investigated topics: Strength assessment: existing concrete Required strength: new concrete Interface existing/new concrete Transient thermal analyses: early age concrete Dam abutment stability
15 Stress (MPa) Heightening of an arch dam Enveloppe of the principal stresses - Winter (a) (b) (c) (d) (e) (a) Construction stages (b) Pre-heightening loading (NLWL: 98 masl) (c) Heightening stages (d) Static loads (e) Dynamic load S1 max Time (sec) S3 min S1 max [MPa] S3 min [MPa] Old concrete New concrete
16 Heightening of an arch dam Major (maximum) dynamic principal stress S1 (Winter, OBE) US face LB RB DS face RB LB t = s S1 max [MPa] Old concrete 2.43 New concrete 2.55
17 Heightening of an arch dam Major (maximum) dynamic principal stress S1 (Winter, OBE) US face LB RB DS face RB LB t = s S1 max [MPa] Old concrete 2.50 New concrete 2.01
18 Stability analysis of a detaching block Common practice: Stability analysis is usually carried out considering the block as completely unrestrained on its lateral faces which assumes that the vertical contraction joints remain permanently opened during earthquake. Instantaneous or time-dependent factors of safety are evaluated considering a 2D section of the block. Permanent displacements are obtained from a Newmark sliding block analysis Question: How does the lateral confinement affect the sliding and overturning stability of the block? Is the assumption of permanently opened contraction joints during earthquake too conservative?
19 Stability analysis of a detaching block Stress resultants on block s faces m Time histories of normal and shear stresses on potential sliding surface m m Time histories of internal N, T and M Time histories of reactions to external loads
20 Stability analysis of a detaching block Internal forces and moments on the block s faces Integration of stresses on block s faces N Lateral M Lateral T Lateral v T Lateral h T Lateral v T Lateral h N Lateral M Lateral N Base M Base
21 N [MN] - Compression / + Tension Stability analysis of a detaching block Normal Force - Full Reservoir Level N Lateral M Lateral T Lateral v T Lateral h N Base M Base T Lateral v T Lateral h N Lateral M Lateral Time [s] N lateral N base
22 T [MN] - DS / + US Stability analysis of a detaching block Shear Force - Full Reservoir Level N Lateral M Lateral T Lateral v T Lateral h N Base M Base T Lateral v T Lateral h N Lateral M Lateral Time [s] T lateral T base
23 M [MN.m] - DS / + US Stability analysis of a detaching block Moment - Full Reservoir Level N Lateral M Lateral T Lateral v T Lateral h N Base M Base T Lateral v T Lateral h N Lateral M Lateral Time [s] M lateral M base
24 Stability analysis of a detaching block m m W v Sliding factor of safety: Q v Q h W h G Overturning factor of safety: m U
25 Factor of Safety Factor of Safety Stability analysis of a detaching block Sliding stability Without lateral confinement (permanently opened contraction joints) With lateral confinement (closed joints if under compression) 100 Sliding Stability - Full Reservoir Level 100 Sliding Stability - Full Reservoir Level Time [s] Time [s]
26 Factor of Safety Factor of Safety Stability analysis of a detaching block Overturning stability Without lateral confinement (permanently opened contraction joints) With lateral confinement (closed joints if under compression) Overturning Stability - Full Reservoir Level Overturning Stability - Full Reservoir Level Time [s] Time [s]
27 Stability analysis of a detaching block For arch dams, the lateral compression due to the pressure of water has a tremendous effect on the overall stability of a potentially detaching block. Neglecting the lateral confinement, assuming permanently opened contraction joints during earthquake, may result in too conservative factors of safety and, in certain cases, to costly and unnecessary retrofit works.
28 Operation safety of hydromechanical equipments Flap gate Hydraulic jack Outlet gate 5. Seismic safety assessment
29 Operation safety of hydromechanical equipments
30 Operation safety of hydromechanical equipments Steel strength assessment Flap gate Outlet gate S1 (traction) S3 (compression) S1 (traction) S3 (compression) vanne-clapet Déplacement Amont-Aval max (mm) temps (s) Contrainte de compression max (MPa) Contrainte de traction max (MPa) Eté Séisme Hiver Séisme Séisme Séisme vanne-secteur Déplacement Amont-Aval max (mm) temps (s) Contrainte de compression max (MPa) Contrainte de traction max (MPa) Seismic safety assessment
31 Déplacement relatif des contreforts [m] - écartement / + rapprochement x Déplacement relatif des contreforts [m] - écartement / + rapprochement x Operation safety of hydromechanical equipments Operation of gates: jamming hazard Vanne clapet Vanne clapet s s Temps (s) Dépl. relatif haut Dépl. relatif bas Vanne secteur Vanne secteur Déplacement relatif latéral des contreforts Flap gate Outlet gap Opening width Gate width Wall-gate gap (mm) s s Temps (s) Dépl. relatif haut Dépl. relatif bas 5. Seismic safety assessment
32 Operation safety of hydromechanical equipments Operation of hydraulic jacks: buckling hazard Flap gate jack Outlet gate jack Bar diameter (mm) Area (mm2) Length (m) Critical Effort N (kn) Maximal compression (dynamic) of jacks: N critique 2 EI l 2 0 N Compression N max (kn) Vérin vanne-clapet temps (s) Contrainte de compression max (MPa) Compression N max (kn) Vérin vanne-secteur temps (s) Contrainte de compression max (MPa) Eté, Lac plein Séisme Hiver, Lac plein Séisme Séisme Séisme N N Buckling safety afctors: Vérin vanne-clapet Vérin vanne-secteur Eté, Lac plein Séisme N Hiver, Lac plein Séisme Séisme Séisme Seismic safety assessment
33 Conclusion Static and dynamic analyses of dams are necessary and powerful tools for the design and the assessment of dam s local and global strength and stability Combined effects of thermal, static and dynamic mechanical loads can be evaluated Main dam s behaviour including early age concrete, crack evolution in time, dynamic oscillations are modeled Sliding and overturning stability are accurately evaluated considering time evolution of all forces acting on the dam or a potentially detaching block Operation safety of hydromechanical equipments is verified, considering gates strength, jamming and buckling.
Evaluation of the behaviour of an arch-gravity dam. featuring a pre-existing crack
Evaluation of the behaviour of an arch-gravity dam featuring a pre-existing crack Dr Aïssa Mellal, Civil Engineer STUCKY SA, Switzerland NUMERICS IN GEOTECHNICS AND STRUCTURES - ZSoil Days - 1-2 September
More informationCOMPARISON 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 informationEARTHQUAKE SAFETY OF AN ARCH-GRAVITY DAM WITH A HORIZONTAL CRACK IN THE UPPER PORTION OF THE DAM
EARTHQUAKE SAFETY OF AN ARCH-GRAVITY DAM WITH A HORIZONTAL CRACK IN THE UPPER PORTION OF THE DAM Martin WIELAND 1 And Sujan MALLA 2 SUMMARY A horizontal crack first appeared along the downstream wall of
More informationGravity dam and earthquake
Gravity dam and earthquake Tardieu s Dynamic simplified method Patrick LIGNIER, Tractebel Engineering Coyne et Bellier Château des Comtes de Challes 9 octobre 2014 CONTENTS 2 Vulnerability of gravity dam
More informationAssessment of the Post-earthquake Safety and the Maximum Anti-Seismic Capability of Zipingpu Concrete Face Rockfill Dam
Assessment of the Post-earthquake Safety and the Maximum Anti-Seismic Capability of Zipingpu Concrete Face Rockfill Dam Jian-ming Zhao, Jinsheng Jia, Yanfeng Wen China Institute of Water Resources and
More informationPhase II Report: Project Definition Options. Dam Safety
OSHPC BARKI TOJIK Phase II Report: Project Definition Options Dam Safety Part 1: Basic data & Dam Design DAM Safety 2 Geology / Geotechnics...: Tectonics / Seismicity : DAM Design - Dam Location - Type
More informationEffects 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 informationSeismic 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 informationSeismic Studies of Foz Tua and Fridão Dams DDDamsDAdams
Seismic Studies of Foz Tua and Fridão Dams DDDamsDAdams D. Silva Matos & José Paixão EDP - Gestão da Produção de Energia, S.A., Porto J.V. Lemos & N. Azevedo Laboratório Nacional de Engenharia Civil, Lisboa
More informationSAFETY CHECK OF SONDUR DAM FOR CHANGED SEISMIC CONDITION Aryak shori 1, R.K.Tripthi 2 and M. K. Verma 3
ABSTRACT SAFETY CHECK OF SONDUR DAM FOR CHANGED SEISMIC CONDITION Aryak shori 1, R.K.Tripthi 2 and M. K. Verma 3 The paper presents Seismic Hazard Analysis (SHA) of Sondur dam situated in Chhattisgarh
More informationWHAT SEISMIC HAZARD INFORMATION THE DAM ENGINEERS NEED FROM SEISMOLOGISTS AND GEOLOGISTS?
WHAT SEISMIC HAZARD INFORMATION THE DAM ENGINEERS NEED FROM SEISMOLOGISTS AND GEOLOGISTS? Martin WIELAND 1 ABSTRACT For large dam projects a site-specific seismic hazard analysis is usually recommended.
More informationDam Safety Aspects of Reservoir-Triggered Seismicity
Dam Safety Aspects of Reservoir-Triggered Seismicity Dr. Martin Wieland Chairman, Committee on Seismic Aspects of Dam Design, International Commission on Large Dams (ICOLD) Poyry Energy Ltd., Zurich, Switzerland
More informationUPLIFT PRESSURES FOR SEISMIC AND POST-SEISMIC SAFETY ASSESSMENT OF GRAVITY DAMS
1 UPLIFT PRESSURES FOR SEISMIC AND POST-SEISMIC SAFETY ASSESSMENT OF GRAVITY DAMS Pierre Léger (Ph.D, UCB 1982-86), Ecole Polytechnique, Montreal University, Canada Pr. A.K Chopra Retirement Symposium
More informationPractical 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 informationComposite bridge design (EN1994-2) Bridge modelling and structural analysis
EUROCODES Bridges: Background and applications Dissemination of information for training Vienna, 4-6 October 2010 1 Composite bridge design (EN1994-2) Bridge modelling and structural analysis Laurence
More informationSeismic Design of a Hydraulic Fill Dam by Nonlinear Time History Method
Seismic Design of a Hydraulic Fill Dam by Nonlinear Time History Method E. Yıldız & A.F. Gürdil Temelsu International Engineering Services Inc., Ankara, Turkey SUMMARY: Time history analyses conducted
More informationDynamic non-linear analysis Hysteretic models EDCE: Civil and Environmental Engineering CIVIL Advanced Earthquake Engineering
Dynamic non-linear analysis Hysteretic models EDCE: Civil and Environmental Engineering CIVIL 706 - Advanced Earthquake Engineering EDCE-EPFL-ENAC-SGC 2016-1- Content Equation of motion Resolution methods
More informationALASKA 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 informationD : SOLID MECHANICS. Q. 1 Q. 9 carry one mark each. Q.1 Find the force (in kn) in the member BH of the truss shown.
D : SOLID MECHANICS Q. 1 Q. 9 carry one mark each. Q.1 Find the force (in kn) in the member BH of the truss shown. Q.2 Consider the forces of magnitude F acting on the sides of the regular hexagon having
More informationA Modified Response Spectrum Analysis Procedure (MRSA) to Determine the Nonlinear Seismic Demands of Tall Buildings
Fawad A. Najam Pennung Warnitchai Asian Institute of Technology (AIT), Thailand Email: fawad.ahmed.najam@ait.ac.th A Modified Response Spectrum Analysis Procedure (MRSA) to Determine the Nonlinear Seismic
More informationBridge deck modelling and design process for bridges
EU-Russia Regulatory Dialogue Construction Sector Subgroup 1 Bridge deck modelling and design process for bridges Application to a composite twin-girder bridge according to Eurocode 4 Laurence Davaine
More informationInfluence of pullout loads on the lateral response of pile foundation
Influence of pullout loads on the lateral response of pile foundation Mahmoud N. Hussien & Mourad Karray Department of Civil Engineering, Sherbrooke University (QC), Canada Tetsuo Tobita & Susumu Iai Disaster
More informationThe University of Melbourne Engineering Mechanics
The University of Melbourne 436-291 Engineering Mechanics Tutorial Four Poisson s Ratio and Axial Loading Part A (Introductory) 1. (Problem 9-22 from Hibbeler - Statics and Mechanics of Materials) A short
More informationStrength of Material. Shear Strain. Dr. Attaullah Shah
Strength of Material Shear Strain Dr. Attaullah Shah Shear Strain TRIAXIAL DEFORMATION Poisson's Ratio Relationship Between E, G, and ν BIAXIAL DEFORMATION Bulk Modulus of Elasticity or Modulus of Volume
More informationDiscrete Element Modelling of a Reinforced Concrete Structure
Discrete Element Modelling of a Reinforced Concrete Structure S. Hentz, L. Daudeville, F.-V. Donzé Laboratoire Sols, Solides, Structures, Domaine Universitaire, BP 38041 Grenoble Cedex 9 France sebastian.hentz@inpg.fr
More informationSTUDY 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 informationSabah Shawkat Cabinet of Structural Engineering Walls carrying vertical loads should be designed as columns. Basically walls are designed in
Sabah Shawkat Cabinet of Structural Engineering 17 3.6 Shear walls Walls carrying vertical loads should be designed as columns. Basically walls are designed in the same manner as columns, but there are
More informationDistribution Restriction Statement Approved for public release; distribution is unlimited.
CECW-ET Engineer Manual 1110-2-6050 Department of the Army U.S. Army Corps of Engineers Washington, DC 20314-1000 EM 1110-2-6050 30 June 1999 Engineering and Design RESPONSE SPECTRA AND SEISMIC ANALYSIS
More informationMechanics of Materials CIVL 3322 / MECH 3322
Mechanics of Materials CIVL 3322 / MECH 3322 2 3 4 5 6 7 8 9 10 A Quiz 11 A Quiz 12 A Quiz 13 A Quiz 14 A Quiz 15 A Quiz 16 In Statics, we spent most of our time looking at reactions at supports Two variations
More informationCURRENT METHODOLOGY AT THE BUREAU OF RECLAMATION FOR THE NONLINEAR ANALYSES OF ARCH DAMS USING EXPLICIT FINITE ELEMENT TECHNIQUES
CURRENT METHODOLOGY AT THE BUREAU OF RECLAMATION FOR THE NONLINEAR ANALYSES OF ARCH DAMS USING EXPLICIT FINITE ELEMENT TECHNIQUES Barbara Mills-Bria, P.E., 1 Larry Nuss, P.E. 2 and Dr. Anil Chopra 2 1
More informationTheory of Structures
SAMPLE STUDY MATERIAL Postal Correspondence Course GATE, IES & PSUs Civil Engineering Theory of Structures C O N T E N T 1. ARCES... 3-14. ROLLING LOADS AND INFLUENCE LINES. 15-9 3. DETERMINACY AND INDETERMINACY..
More informationMATERIALS FOR CIVIL AND CONSTRUCTION ENGINEERS
MATERIALS FOR CIVIL AND CONSTRUCTION ENGINEERS 3 rd Edition Michael S. Mamlouk Arizona State University John P. Zaniewski West Virginia University Solution Manual FOREWORD This solution manual includes
More informationEarthquake 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 informationINTERNATIONAL JOURNAL OF CIVIL AND STRUCTURAL ENGINEERING Volume 3, No 1, 2012
INTERNATIONAL JOURNAL OF CIVIL AND STRUCTURAL ENGINEERING Volume 3, No 1, 2012 Copyright by the authors Licensee IPA Under Creative Commons license 3.0 Research article ISSN 0976 4399 Safety check of existing
More informationLocal cracking stability analysis of super high arch dam *Peng Lin 1), Qingbin Li, Dong Zheng, Senying Hu
Local cracking stability analysis of super high arch dam *Peng Lin 1), Qingbin Li, Dong Zheng, Senying Hu State Key Laboratory of Hydroscience and Engineering, TsinghuaUniversity, Beijing 100084, China
More informationTHEME 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 informationtwo structural analysis (statics & mechanics) APPLIED ACHITECTURAL STRUCTURES: DR. ANNE NICHOLS SPRING 2017 lecture STRUCTURAL ANALYSIS AND SYSTEMS
APPLIED ACHITECTURAL STRUCTURES: STRUCTURAL ANALYSIS AND SYSTEMS DR. ANNE NICHOLS SPRING 2017 lecture two structural analysis (statics & mechanics) Analysis 1 Structural Requirements strength serviceability
More informationApplication 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 informationStatic & 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 information7.2 Design of minaret: Geometry:
7. Design of minaret: Geometry: The figure below shows the longitudinal section in the minaret and the cross section will be shown when start calculate the self-weight of each section. Figure 7..1 Longitudinal
More informationSeismic stability safety evaluation of gravity dam with shear strength reduction method
Water Science and Engineering, 2009, 2(2): 52-60 doi:10.3882/j.issn.1674-2370.2009.02.006 http://kkb.hhu.edu.cn e-mail: wse@hhu.edu.cn Seismic stability safety evaluation of gravity dam with shear strength
More informationSeismic Evaluation of Tailing Storage Facility
Australian Earthquake Engineering Society 2010 Conference, Perth, Western Australia Seismic Evaluation of Tailing Storage Facility Jonathan Z. Liang 1, David Elias 2 1 Senior Geotechnical Engineer, GHD
More informationSEISMIC RESPONSE EVALUATION OF AN RC BEARING WALL BY DISPLACEMENT-BASED APPROACH
3 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August -, 4 Paper No. 49 SEISMIC RESPONSE EVALUATION OF AN RC BEARING WALL BY DISPLACEMENT-BASED APPROACH Chang-Hun HYUN, Sanghyun
More informationSEISMIC PERFORMANCE OF CONCRETE COLUMNS WITH INADEQUATE TRANSVERSE REINFORCEMENT. Alistair Boys 1 Des K. Bull 2 Stefano Pampanin 3 ABSTRACT
SEISMIC PERFORMANCE OF CONCRETE COLUMNS WITH INADEQUATE TRANSVERSE REINFORCEMENT. Alistair Boys 1 Des K. Bull 2 Stefano Pampanin 3 ABSTRACT Existing New Zealand building stock contains a significant number
More informationAN OVERVIEW OF KONAR DAM ON NEED OF REHABILITATION
AN OVERVIEW OF KONAR DAM ON NEED OF REHABILITATION Dipankar Chaudhuri, SE (Civil) A. K. Dubey, SE (Civil) and S. B. Pandey, DCE (Civil) DAMODAR VALLEY CORPORATION OVER VIEW Problems Cracks Potential Conclusion
More informationCOLUMNS: BUCKLING (DIFFERENT ENDS)
COLUMNS: BUCKLING (DIFFERENT ENDS) Buckling of Long Straight Columns Example 4 Slide No. 1 A simple pin-connected truss is loaded and supported as shown in Fig. 1. All members of the truss are WT10 43
More informationInstructor : Dr. Jehad Hamad. Chapter (7)
Instructor : Dr. Jehad Hamad Chapter (7) 2017-2016 Soil Properties Physical Properties Mechanical Properties Gradation and Structure Compressibility Soil-Water Relationships Shear Strength Bearing Capacity
More informationThe 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 informationModel Inversion for Induced Seismicity
Model Inversion for Induced Seismicity David Castiñeira Research Associate Department of Civil and Environmental Engineering In collaboration with Ruben Juanes (MIT) and Birendra Jha (USC) May 30th, 2017
More informationIntegrating Lab and Numerical Experiments to Investigate Fractured Rock
Integrating Lab and Numerical Experiments to Investigate Fractured Rock Bradford H. Hager Director, Earth Resources Laboratory and Cecil and Ida Green Professor Department of Earth, Atmospheric and Planetary
More informationGENERATION OF VERTICAL ACCELERATIONS FOR SEISMIC SLIDING RESPONSE OF GRAVITY DAMS
GENERATION OF VERTICAL ACCELERATIONS FOR SEISMIC SLIDING RESPONSE OF GRAVITY DAMS Constantin CHRISTOPOULOS 1, Pierre LÉGER 2 And André FILIATRAULT 3 SUMMARY This paper presents a general procedure to generate
More informationSeismic Pushover Analysis Using AASHTO Guide Specifications for LRFD Seismic Bridge Design
Seismic Pushover Analysis Using AASHTO Guide Specifications for LRFD Seismic Bridge Design Elmer E. Marx, Alaska Department of Transportation and Public Facilities Michael Keever, California Department
More informationPREDICTION OF THE CYCLIC BEHAVIOR OF MOMENT RESISTANT BEAM-TO-COLUMN JOINTS OF COMPOSITE STRUCTURAL ELEMENTS
SDSS Rio 21 STABILITY AND DUCTILITY OF STEEL STRUCTURES E. Batista, P. Vellasco, L. de Lima (Eds.) Rio de Janeiro, Brazil, September 8-1, 21 PREDICTION OF THE CYCLIC BEHAVIOR OF MOMENT RESISTANT BEAM-TO-COLUMN
More informationLATERAL EARTH PRESSURE AND RETAINING STRUCTURES
Topic Outline LATERAL EARTH PRESSURE AND RETAINING STRUCTURES Types of retaining structures Lateral earth pressure Earth pressure at rest Rankine s Theory Coulomb s Theory Cullman s graphic solution Braced
More informationEngineering Science OUTCOME 1 - TUTORIAL 4 COLUMNS
Unit 2: Unit code: QCF Level: Credit value: 15 Engineering Science L/601/10 OUTCOME 1 - TUTORIAL COLUMNS 1. Be able to determine the behavioural characteristics of elements of static engineering systems
More informationPractical aspects of dam break analysis
Practical aspects of dam break analysis Louis C Hattingh Hattingh Anderson Associates CC Dam break analysis It is a model You need to understand what you model & have an idea of the answers that you expect
More informationGeotechnical Engineering and Dams
Geotechnical Engineering and Dams Solving Geotechnical Challenges for Hydropower and Water Resources Projects Geological and geotechnical challenges are often very demanding when planning hydraulic structures.
More informationCE5510 Advanced Structural Concrete Design - Design & Detailing of Openings in RC Flexural Members-
CE5510 Advanced Structural Concrete Design - Design & Detailing Openings in RC Flexural Members- Assoc Pr Tan Kiang Hwee Department Civil Engineering National In this lecture DEPARTMENT OF CIVIL ENGINEERING
More informationComparison of 2D vs. 3D Modeling Approaches for the Analyses of Concrete Faced Rockfill Dams
Comparison of 2D vs. 3D Modeling Approaches for the Analyses of Concrete Faced Rockfill Dams H. F. Özel & Y. Arici Dept. of Civil Engineering, Structural Mechanics Laboratory,K2-303, Middle East Technical
More informationName :. Roll No. :... Invigilator s Signature :.. CS/B.TECH (CE-NEW)/SEM-3/CE-301/ SOLID MECHANICS
Name :. Roll No. :..... Invigilator s Signature :.. 2011 SOLID MECHANICS Time Allotted : 3 Hours Full Marks : 70 The figures in the margin indicate full marks. Candidates are required to give their answers
More informationRock slope failure along non persistent joints insights from fracture mechanics approach
Rock slope failure along non persistent joints insights from fracture mechanics approach Louis N.Y. Wong PhD(MIT), BSc(HKU) Assistant Professor and Assistant Chair (Academic) Nanyang Technological University,
More informationDynamic 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 informationCHAPTER OBJECTIVES CHAPTER OUTLINE. 4. Axial Load
CHAPTER OBJECTIVES Determine deformation of axially loaded members Develop a method to find support reactions when it cannot be determined from euilibrium euations Analyze the effects of thermal stress
More informationSEM-2016(01HI CIVIL ENGINEERING. Paper Answer all questions. Question No. 1 does not have internal choice,
Roll No. Candidate should write his/her Roll No. here. Total No. of Questions : 5 No. of Printed Pages : 8 SEM-2016(01HI CIVIL ENGINEERING Paper - 11 Time : 3 Hours ] [ Total Marks : 300 Instructions to
More informationGATE SOLUTIONS E N G I N E E R I N G
GATE SOLUTIONS C I V I L E N G I N E E R I N G From (1987-018) Office : F-16, (Lower Basement), Katwaria Sarai, New Delhi-110016 Phone : 011-65064 Mobile : 81309090, 9711853908 E-mail: info@iesmasterpublications.com,
More informationDynamic Analysis of a Reinforced Concrete Structure Using Plasticity and Interface Damage Models
Dynamic Analysis of a Reinforced Concrete Structure Using Plasticity and Interface Damage Models I. Rhee, K.J. Willam, B.P. Shing, University of Colorado at Boulder ABSTRACT: This paper examines the global
More informationA METHOD OF LOAD INCREMENTS FOR THE DETERMINATION OF SECOND-ORDER LIMIT LOAD AND COLLAPSE SAFETY OF REINFORCED CONCRETE FRAMED STRUCTURES
A METHOD OF LOAD INCREMENTS FOR THE DETERMINATION OF SECOND-ORDER LIMIT LOAD AND COLLAPSE SAFETY OF REINFORCED CONCRETE FRAMED STRUCTURES Konuralp Girgin (Ph.D. Thesis, Institute of Science and Technology,
More informationBehaviour 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 informationTWO 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 informationMesh-sensitivity analysis of seismic damage index for reinforced concrete columns
Mesh-sensitivity analysis of seismic damage index for reinforced concrete columns Jun Won Kang 1a and Jeeho Lee 2 1 Department of Civil Engineering, Hongik University, 94 Wausan-ro, Mapo-gu, Seoul 04066,
More informationFluid driven cohesive crack propagation in quasi-brittle materials
Fluid driven cohesive crack propagation in quasi-brittle materials F. Barpi 1, S. Valente 2 Department of Structural and Geotechnical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129
More informationInternational Journal Of Scientific & Engineering Research Volume 4, Issue 5, May-2013 ISSN
180 SEISMIC FRACTURE ANALYSIS IN CONCRETE GRAVITY DAMS Deeja Alora, Indrani Gogoi Abstract Modelling of crack propagation in solids has been a major area of focus both in industry and research communities.
More informationAXIAL COLLAPSE OF REINFORCED CONCRETE COLUMNS
3 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August -6, 4 Paper No. 699 AXIAL COLLAPSE OF REINFORCED CONCRETE COLUMNS Manabu YOSHIMURA, Yoshikazu TAKAINE and Takaya NAKAMURA
More informationCHAPTER 4. Design of R C Beams
CHAPTER 4 Design of R C Beams Learning Objectives Identify the data, formulae and procedures for design of R C beams Design simply-supported and continuous R C beams by integrating the following processes
More informationBehavior of an impacted reinforced concrete slab: percussion and punching analysis
Behavior of an impacted reinforced concrete slab: percussion and punching analysis P. Perrotin 1, F. Delhomme 1,2, M. Mommessin 1 & J.-P. Mougin 1 1 Laboratory Design Optimisation and Environmental Engineering
More informationNONLINEAR 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 informationBrittle Deformation. Earth Structure (2 nd Edition), 2004 W.W. Norton & Co, New York Slide show by Ben van der Pluijm
Lecture 6 Brittle Deformation Earth Structure (2 nd Edition), 2004 W.W. Norton & Co, New York Slide show by Ben van der Pluijm WW Norton, unless noted otherwise Brittle deformation EarthStructure (2 nd
More informationSHEAR CAPACITY OF REINFORCED CONCRETE COLUMNS RETROFITTED WITH VERY FLEXIBLE FIBER REINFORCED POLYMER WITH VERY LOW YOUNG S MODULUS
SHEAR CAPACITY OF REINFORCED CONCRETE COLUMNS RETROFITTED WITH VERY FLEXILE FIER REINFORCED POLYMER WITH VERY LOW YOUNG S MODULUS Hu Shaoqing Supervisor: Susumu KONO ** MEE8165 ASTRACT FRP with low Young
More informationMechanics of Materials
Mechanics of Materials 2. Introduction Dr. Rami Zakaria References: 1. Engineering Mechanics: Statics, R.C. Hibbeler, 12 th ed, Pearson 2. Mechanics of Materials: R.C. Hibbeler, 9 th ed, Pearson 3. Mechanics
More informationComparison between Different Shapes of Structure by Response Spectrum Method of Dynamic Analysis
Open Journal of Civil Engineering, 2016, 6, 131-138 Published Online March 2016 in SciRes. http://www.scirp.org/journal/ojce http://dx.doi.org/10.4236/ojce.2016.62012 Comparison between Different Shapes
More informationTheory at a Glance (for IES, GATE, PSU)
1. Stress and Strain Theory at a Glance (for IES, GATE, PSU) 1.1 Stress () When a material is subjected to an external force, a resisting force is set up within the component. The internal resistance force
More informationGeotechnical & Mining Engineering Services
Geotechnical & Mining Engineering Services Southwest Research Institute San Antonio, Texas A s an independent, nonprofit research and development organization, Southwest Research Institute (SwRI ) uses
More informationEffect of uniform and gradient thermal loadings on cylindrical steel reservoirs (analytical investigation)
Journal of Civil Engineering and Construction Technology Vol. (3), pp. 9-3, March 13 Available online at http://www.academicjournals.org/jcect DOI:.597/JCECT1.91 ISS 11-3 13 Academic Journals Full Length
More informationMulti-scale approach of the mechanical behavior of RC structures Application to nuclear plant containment buildings
Multi-scale approach of the mechanical behavior of RC structures Application to nuclear plant containment buildings Martin DAVID June 19, 2012 1 Industrial context EDF is responsible for numerous reinforced
More informationModule 6. Approximate Methods for Indeterminate Structural Analysis. Version 2 CE IIT, Kharagpur
Module 6 Approximate Methods for Indeterminate Structural Analysis Lesson 35 Indeterminate Trusses and Industrial rames Instructional Objectives: After reading this chapter the student will be able to
More informationENERGY DIAGRAM w/ HYSTERETIC
ENERGY DIAGRAM ENERGY DIAGRAM w/ HYSTERETIC IMPLIED NONLINEAR BEHAVIOR STEEL STRESS STRAIN RELATIONSHIPS INELASTIC WORK DONE HYSTERETIC BEHAVIOR MOMENT ROTATION RELATIONSHIP IDEALIZED MOMENT ROTATION DUCTILITY
More informationHigh-Precision Strength Evaluation of Rock Materials and Stability Analysis for Rockfill Dams
1st International Symposium on Rockfill Dams High-Precision Strength Evaluation of Rock Materials and Stability Analysis for Rockfill Dams Hiroki SAKAMOTO Research Engineer Public Works Research Institute,
More informationEFFECT OF SHEAR REINFORCEMENT ON FAILURE MODE OF RC BRIDGE PIERS SUBJECTED TO STRONG EARTHQUAKE MOTIONS
EFFECT OF SHEAR REINFORCEMENT ON FAILURE MODE OF RC BRIDGE PIERS SUBJECTED TO STRONG EARTHQUAKE MOTIONS Atsuhiko MACHIDA And Khairy H ABDELKAREEM SUMMARY Nonlinear D FEM was utilized to carry out inelastic
More informationDEFORMATION CAPACITY OF OLDER RC SHEAR WALLS: EXPERIMENTAL ASSESSMENT AND COMPARISON WITH EUROCODE 8 - PART 3 PROVISIONS
DEFORMATION CAPACITY OF OLDER RC SHEAR WALLS: EXPERIMENTAL ASSESSMENT AND COMPARISON WITH EUROCODE 8 - PART 3 PROVISIONS Konstantinos CHRISTIDIS 1, Emmanouil VOUGIOUKAS 2 and Konstantinos TREZOS 3 ABSTRACT
More informationDesign of a Multi-Storied RC Building
Design of a Multi-Storied RC Building 16 14 14 3 C 1 B 1 C 2 B 2 C 3 B 3 C 4 13 B 15 (S 1 ) B 16 (S 2 ) B 17 (S 3 ) B 18 7 B 4 B 5 B 6 B 7 C 5 C 6 C 7 C 8 C 9 7 B 20 B 22 14 B 19 (S 4 ) C 10 C 11 B 23
More informationProperties of Sections
ARCH 314 Structures I Test Primer Questions Dr.-Ing. Peter von Buelow Properties of Sections 1. Select all that apply to the characteristics of the Center of Gravity: A) 1. The point about which the body
More informationINFLUENCE OF DAM-FOUNDATION INTERACTION IN SEISMIC SAFETY EVALUATION OF TWO ARCH DAMS
INFLUENCE OF DAM-FOUNDATION INTERACTION IN SEISMIC SAFETY EVALUATION OF TWO ARCH DAMS Larry K NUSS 1, Rich L MUNOZ 2, Frank J JACKMAUH 3 And Anil K CHOPRA 4 SUMMARY Based on the extensive research during
More informationSHEAR DESIGN EQUATIONS FOR FRP RC BEAMS
SHEAR DESIGN EQUATIONS FOR FRP RC BEAMS Dr. Maurizio Guadagnini Dr. Kypros Pilakoutas Professor Peter Waldron Centre for Dept. of Civil and Structural Engineering The University of Sheffield, UK Outline
More informationMechanical properties 1 Elastic behaviour of materials
MME131: Lecture 13 Mechanical properties 1 Elastic behaviour of materials A. K. M. B. Rashid Professor, Department of MME BUET, Dhaka Today s Topics Deformation of material under the action of a mechanical
More informationRecommandations barrages-voûtes
Recommandations barrages-voûtes Marc Hoonakker et Guirec Prevot Symposium AG du CFBR 31 Janvier 2019 Marseille 1 A CFBR (French-COLD) Working Group French inventory: 88 arch dams (VA) Goal: a state-of-the
More informationCASE STUDY BINGA, PHILIPPINES
SEDIMENT MANAGEMENT CASE STUDY BINGA, PHILIPPINES Key project features Name: Binga Country: Philippines Category: modify operating rule (focus or redistribute sediment); adaptive strategies Binga hydropower
More informationCOLUMN BASE WEAK AXIS ALIGNED ASYMMETRIC FRICTION CONNECTION CYCLIC PERFORMANCE
8 th International Conference on Behavior of Steel Structures in Seismic Areas Shanghai, China, July 1-3, 2015 COLUMN BASE WEAK AXIS ALIGNED ASYMMETRIC FRICTION CONNECTION CYCLIC PERFORMANCE J. Borzouie*,
More informationModule 9 : Foundation on rocks. Content
FOUNDATION ON ROCKS Content 9.1 INTRODUCTION 9.2 FOUNDATION TYPES ON ROCKS 9.3 BEARING CAPCITY- SHALLOW FOUNDATION 9.3.1 Ultimate bearing capacity 9.3.2 Safe bearing pressure 9.3.3 Estimation of bearing
More informationNon-Linear Modeling of Reinforced Concrete Structures for Seismic Applications
2/18/21 Non-Linear Modeling of Reinforced Concrete Structures for Seismic Applications Luis A. Montejo Assistant Professor Department of Engineering Science and Materials University of Puerto Rico at Mayaguez
More informationA q u a b l u e a t t h e G o l d e n M i l e
A q u a b l u e a t t h e G o l d e n M i l e H a t o R e y, P u e r t o R i c o G e n e r a l B u i l d i n g I n f o r m a t i o n Building Facts: 7-story parking structure + luxury apartments 900,000
More information