Directing Energy Dissipation in Earthquake-Soil-Structure Systems

Size: px
Start display at page:

Download "Directing Energy Dissipation in Earthquake-Soil-Structure Systems"

Transcription

1 Directing Energy Dissipation in Earthquake-Soil-Structure Systems, Nima Tafazzoli, Mahdi Taiebat, Guanzhou Jie Department of Civil and Environmental Engineering University of California, Davis CompDyn9

2 Outline Motivation Modeling and Simulation Seismic Energy Input Seismic Energy Dissipation Examples of Energy Dissipation Use of Soft Soil Use of Liquefaction Summary

3 Motivation Motivation Improving seismic design for infrastructure objects Use of high fidelity numerical models in analyzing seismic behavior of soil structure systems Accurately (high fidelity modeling and simulations) following the flow of seismic energy in the soil structure system Directing, in space and time, seismic energy flow in the soil structure system

4 Motivation Hypothesis Interplay of Earthquake with Soil and Structure plays major role in (catastrophic) failures (and successes). Timing and spatial location of energy dissipation determines location and amount of damage. If timing and spatial location of energy dissipation can be controlled, we could optimize soil structure systems for Safety and Economy

5 Motivation First Published Work on Soil Structure Interaction Professor Kyoji Suyehiro Ship engineer (Professor of Naval Arch. at U. of Tokyo), Was in Tokyo during Great Kantō earthquake (11:58am(7.5), 12:1pm(7.3), 12.3pm(7.2) (shaking until 12:8pm), 1st. Sept. 1923) Saw earthquake surface waves travel and buildings sway Founding Director of the Earthquake Engineering Research Institute Univ. of Tokyo), Records shows 4 (four) more damage to soft wooden buildings on soft ground

6 Motivation Modeling and Simulation Examples of Energy Dissipation Summary Motivation Northridge Example [Trifunac and Todorovska 1998] Boris Jeremic

7 Seismic Energy Input Outline Motivation Modeling and Simulation Seismic Energy Input Seismic Energy Dissipation Examples of Energy Dissipation Use of Soft Soil Use of Liquefaction Summary

8 Seismic Energy Input Seismic Energy at the Source Large energy releases, Northridge, 1994, M Richter = 6.7, E r = J Loma Prieta, 1989, M Richter = 6.9, E r = J Sumatra-Andaman, 24, M Richter = 9.3, E r = J Valdivia, Chile, 196, M Richter = 9.5, E r = J Rhodes, 28, M Richter = 6.5, E r = J Part that energy is radiated as waves ( ) and makes it to the surface For comparison, specific energy of TNT is J/kg. Rhodes earthquake was.1kt.

9 Seismic Energy Input Seismic Energy and the SFS System Kinetic energy flux through closed surface Γ includes both incoming and outgoing waves (using Domain Reduction Method by Bielak et al.) [ ] E flux = ; M Ω+ be ü e K Ω+ be u e; M Ω+ eb ü b + K Ω+ eb u b u i i Alternatively, E flux = ρac t u2 i dt Outgoing kinetic energy is obtained from outgoing wave field (w i, in DRM) Incoming kinetic energy is then the difference. P e (t) Ω + Ω u b u e Local feature u i u e Γ Γe Γ+

10 Seismic Energy Dissipation Outline Motivation Modeling and Simulation Seismic Energy Input Seismic Energy Dissipation Examples of Energy Dissipation Use of Soft Soil Use of Liquefaction Summary

11 Seismic Energy Dissipation Seismic Energy Dissipation for Soil Structure Systems Mechanical dissipation outside of SFS domain: wave reflection SFS system oscillation radiation Mechanical dissipation/conversion inside SFS domain: plasticity of soil (different subdomains) viscous coupling of porous solid with pore fluid (air, water) plasticity/damage of the structure (different parts) viscous coupling of structure with surrounding fluids potential kinetic energy Numerical energy dissipation/production

12 Seismic Energy Dissipation Energy Dissipation by Plasticity Plastic work (W = σ ij dɛ pl ij ) Energy dissipation capacity for different soils Energy Dissipated (J/m 3 ) Stiff Clay Dense Sand Loose Sand Soft Clay Shear Strain Cycle (%)

13 Seismic Energy Dissipation Energy Disipation by Viscous Coupling Viscous coupling of porous solid and fluid Energy loss per unit volume is E vc = n 2 k 1 ( U i u i ) 2 Natural in u p U formulation: 2 4 (M s) KijL (M f ) KijL ü Lj p N U Lj (K EP ) KijL (G 1 ) KiM (G 1 ) LjM P MN (G 2 ) LjM (G 2 ) KiL Z (C (1,2,3) ) KijL = Ω N (u,u,u) K (C 1 ) KijL (C 2 ) KijL (C 2 ) LjiK (C 3 ) KijL n 2 k 1 ij N (u,u,u) L dω u Lj p M U Lj 3 5 = u Lj ṗ N U Lj f solid Ki f fluid Ki

14 Seismic Energy Dissipation Numerical Energy Dissipation Newmark and Hilber Hughes Taylor can be made non dissipative for elastic system α =., β =.25; γ =.5, Or dissipative (for elastic) for higher frequency modes: N: γ.5, β =.25(γ +.5) 2, HHT:.3 3 α, γ =.5(1 2α), β =.25(1 α) 2 For nonlinear problems, energy cannot be maintained Energy dissipation for steps with reduction of stiffness Energy production for steps with increase of stiffness R e R e u i u i

15 Use of Soft Soil Outline Motivation Modeling and Simulation Seismic Energy Input Seismic Energy Dissipation Examples of Energy Dissipation Use of Soft Soil Use of Liquefaction Summary

16 Use of Soft Soil Earthquake Soil Bridge System Inelastic soils (el pl, Armstrong-Frederick, stiff and soft), inelastic structure (columns), inelastic piles, DRM for seismic input, Construction process Deconvolution osurface ground motions No artificial damping, only plastic dissipation and radiation Plastic Domain Decompisition Method for parallel computing 1.6 M DOFs (15cm element size)

17 Use of Soft Soil Northridge and Kocaeli Input Motions Acceleration (m/s 2 ) Displacement (m) Acceleration (m/s 2 ) Displacement (m) Acceleration Time Series Input Motion (NORTHRIDGE EARTHQUAKE, 1994) Time (s) Displacement Time Series Input Motion (NORTHRIDGE EARTHQUAKE, 1994) Acceleration Time Series Input Motion (TURKEY KOCAELI EARTHQUAKE, 1999) Time (s) Time (s) Displacement Time Series Input Motion (TURKEY KOCAELI EARTHQUAKE, 1999) Time (s)

18 Use of Soft Soil Northridge Energy: Strain (dissipated) and Kinetic 4 SSS CCC 3 2 Moment (kn*m) Relative Velocity Energy [J/kg] Time (s) CCC SSS Time [s]

19 Use of Soft Soil Kocaeli Energy: Strain (dissipated) and Kinetic 4 SSS CCC 3 2 Moment (kn*m) Time (s).7 CCC.6 SSS Relative Velocity Energy [J/kg] Time [s]

20 Use of Liquefaction Outline Motivation Modeling and Simulation Seismic Energy Input Seismic Energy Dissipation Examples of Energy Dissipation Use of Soft Soil Use of Liquefaction Summary

21 Use of Liquefaction Uniform and Layered Soils loose (e=.96,.875) medium dense (e=.8) medium dense (e=.8)

22 Use of Liquefaction Acceleration Time History

23 Use of Liquefaction Excess Pore Pressure Ratio

24 Use of Liquefaction Plastic Energy Dissipation in Uniform Soils Cumulative Energy (Uniform) [kj] time [s]

25 Use of Liquefaction Plastic Energy Dissipation in Layered Soils.6.5 Cumulative Energy (Layered) [kj] time [s]

26 Use of Liquefaction Kinetic Energy at the Top Energy (Layered) [J/kg] Uniform Layered Time [s]

27 Use of Liquefaction Void Ratio Variation (Potential Energy)

28 Summary Interplay of Earthquake, Soil and Structure plays a major role in catastrophic failures and great successes Opportunity to improve design: following the flow of seismic energy in the soil structure systems Directing in space and time, seismic energy flow in the soil structure system might/will lead to increase in safety and economy

29 Colossus of Rhodes: What if?

High Fidelity Modeling and Simulation of SFS Interaction: Energy Dissipation by Design

High Fidelity Modeling and Simulation of SFS Interaction: Energy Dissipation by Design High Fidelity Modeling and Simulation of SFS Interaction: Energy Dissipation by Design with contributions by Nima Tafazzoli (UCD), Guanzhou Jie (Wachovia Corp), Mahdi Taiebat (UBC), Zhao Cheng (EarthMechanics

More information

Earthquake-Soil-Structure Systems

Earthquake-Soil-Structure Systems and Sashi Kunnath with Kallol Sett and Nima Tafazzoli Department of Civil and Environmental Engineering University of California, Davis Outline Goals ESS Systems High Fidelity, D Models Behavior for Short

More information

Modeling and Simulation of Static and Dynamic Behavior of Soil Structure Systems

Modeling and Simulation of Static and Dynamic Behavior of Soil Structure Systems Modeling and Simulation of Static and Dynamic Behavior of Soil Structure Systems Boris Jeremić University of California, Davis, CA Lawrence Berkeley National Laboratory, Berkeley, CA United States Bureau

More information

On Seismic Soil Structure Interaction Simulations for Nuclear Power Plants

On Seismic Soil Structure Interaction Simulations for Nuclear Power Plants On Seismic Soil Structure Interaction Simulations for Nuclear Power Plants B. Jeremić, N. Tafazzoli, B. Kamrani, Y.C. Chao, C.G. Jeong, P. Tasiopoulou, K. Sett, A. Kammerer, N. Orbović, and A. Blahoianu

More information

A Brief Overview of the NEESgrid Simulation Platform OpenSees: Application to the Soil Foundation Structure Interaction Problems

A Brief Overview of the NEESgrid Simulation Platform OpenSees: Application to the Soil Foundation Structure Interaction Problems A Brief Overview of the NEESgrid Simulation Platform OpenSees: Application to the Soil Foundation Structure Interaction Problems Boris Jeremić Department of Civil and Environmental Engineering University

More information

A Brief Overview of the NEESgrid Simulation Platform OpenSees: Application to the Soil Foundation Structure Interaction Problems

A Brief Overview of the NEESgrid Simulation Platform OpenSees: Application to the Soil Foundation Structure Interaction Problems A Brief Overview of the NEESgrid Simulation Platform OpenSees: Application to the Soil Foundation Structure Interaction Problems Boris Jeremić Presented here is an overview of our recent work in the area

More information

Modeling and Simulation of Static and Dynamic Behavior of Soil Structure Systems

Modeling and Simulation of Static and Dynamic Behavior of Soil Structure Systems Modeling and Simulation of Static and Dynamic Behavior of Soil Structure Systems Boris Jeremić Feng, Yang, Behbehani, Sinha, Wang, Pisanó, Abell University of California, Davis Lawrence Berkeley National

More information

PRENOLIN November 2013 Meeting

PRENOLIN November 2013 Meeting PRENOLIN November 2013 Meeting Boris Jeremić Professor, University of California, Davis, CA Faculty Scientist, Lawrence Berkeley National Laboratory, Berkeley, CA Nice, France PRENOLIN Questionnaire Questions

More information

Modeling and Simulation of Earthquake Soil Structure Interaction for Risk Informed Decision Making

Modeling and Simulation of Earthquake Soil Structure Interaction for Risk Informed Decision Making Modeling and Simulation of Earthquake Soil Structure Interaction for Risk Informed Decision Making Boris with Dr. Tafazzoli, Mr. Abell, Mr. Jeong, Dr. Pisanò, Prof. Sett (UA), Prof. Taiebat (UBC), Prof.

More information

EFFECT OF NEAR FIELD GROUND MOTIONS ON FORCE REDUCTION FACTOR AND RESIDUAL DISPLACEMENT

EFFECT OF NEAR FIELD GROUND MOTIONS ON FORCE REDUCTION FACTOR AND RESIDUAL DISPLACEMENT EFFECT OF NEAR FIELD GROUND MOTIONS ON FORCE REDUCTION FACTOR AND RESIDUAL DISPLACEMENT Tokyo Institute of Technology Ken KIJIMA Gakuho WATANABE Kazuhiko KAWASHIMA USA-Japan Summer Student Symposium 6/11

More information

Numerical Simulation of Fully Saturated Porous Materials

Numerical Simulation of Fully Saturated Porous Materials INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS Numerical Simulation of Fully Saturated Porous Materials Boris Jeremić ( ) 1, Zhao Cheng ( ) 2 3 (مهدی طيبات ( Taiebat Mahdi and

More information

Soil Foundation Structure Interaction Simulations: Static and Dynamic Issues

Soil Foundation Structure Interaction Simulations: Static and Dynamic Issues Soil Foundation Structure Interaction Simulations: Static and Dynamic Issues Boris Jeremić Department of Civil and Environmental Engineering University of California, Davis 1 JB Leitmotiv Create high fidelity

More information

Modeling of Seismic Energy Dissipation in Elastic-Plastic Materials

Modeling of Seismic Energy Dissipation in Elastic-Plastic Materials Modeling of in Elastic-Plastic Materials Instructor: Prof. Boris Jeremić University of California, Davis 15th IACMAG Wuhan, China Aug 20 2017 Outline Introduction Modeling of Energy Dissipation Limitations

More information

Earthquake Soil Structure Interaction Modeling and Simulation

Earthquake Soil Structure Interaction Modeling and Simulation Motivation Real Challenges Earthquake Soil Structure Interaction Modeling and Simulation Boris Jeremić University of California, Davis Lawrence Berkeley National Laboratory, Berkeley Southern California

More information

Seismic Stability of Tailings Dams, an Overview

Seismic Stability of Tailings Dams, an Overview Seismic Stability of Tailings Dams, an Overview BY Gonzalo Castro, Ph.D., P.E. Principal International Workshop on Seismic Stability of Tailings Dams Case Western Reserve University, November 2003 Small

More information

2005 OpenSees Symposium OpenSees

2005 OpenSees Symposium OpenSees P E E R 25 OpenSees Symposium OpenSees Geotechnical Capabilities and Applications Dr. Liangcai He Prof. Ahmed Elgamal Dr. Zhaohui Yang Mr. James L. Yan Mr. Jinchi Lu (U.C. San Diego) Soil Materials and

More information

Use of Nonlinear, Time Domain Analysis for Design

Use of Nonlinear, Time Domain Analysis for Design Use of Nonlinear, Time Domain Analysis for Design Nebojša Orbović, Boris Jeremić, José Antonio Abell Mena, Chao Luo, Robert P. Kennedy and Andrei Blaihoanu, SMiRT, Manchester, UK, August 215 Outline Introduction

More information

NUMERICAL ANALYSIS OF DAMAGE OF RIVER EMBANKMENT ON SOFT SOIL DEPOSIT DUE TO EARTHQUAKES WITH LONG DURATION TIME

NUMERICAL ANALYSIS OF DAMAGE OF RIVER EMBANKMENT ON SOFT SOIL DEPOSIT DUE TO EARTHQUAKES WITH LONG DURATION TIME Proceedings of the International Symposium on Engineering Lessons Learned from the 2011 Great East Japan Earthquake, March 1-4, 2012, Tokyo, Japan NUMERICAL ANALYSIS OF DAMAGE OF RIVER EMBANKMENT ON SOFT

More information

Back-Calculation of Winkler Foundation Parameters for Dynamic Analysis of Piles from Field Test Data

Back-Calculation of Winkler Foundation Parameters for Dynamic Analysis of Piles from Field Test Data Back-Calculation of Winkler Foundation Parameters for Dynamic Analysis of Piles from Field Test Data ABSTRACT A. (Rajah) Anandarajah, Jigang Zhang and G. Gnanaranjan Department of Civil Engineering Johns

More information

Nonlinear effects in Earthquake Soil Structure Interaction of Nuclear Power Plants

Nonlinear effects in Earthquake Soil Structure Interaction of Nuclear Power Plants Nonlinear effects in Earthquake Soil Structure Interaction of Nuclear Power Plants Feng, Sinha, Abell, Yang, Behbehani, Orbović, McCallen, Jeremić UCD, LBNL, CNSC SMiRT24 Busan, Republic of Korea Outline

More information

Residual Deformation Analyses to Demonstrate the Effect of Thin Steel Sheet Piles on Liquefaction-Induced Penetration Settlement of Wooden Houses

Residual Deformation Analyses to Demonstrate the Effect of Thin Steel Sheet Piles on Liquefaction-Induced Penetration Settlement of Wooden Houses 6 th International Conference on Earthquake Geotechnical Engineering 1-4 November 2015 Christchurch, New Zealand Residual Deformation Analyses to Demonstrate the Effect of Thin Steel Sheet Piles on Liquefaction-Induced

More information

Propagation of Seismic Waves through Liquefied Soils

Propagation of Seismic Waves through Liquefied Soils Propagation of Seismic Waves through Liquefied Soils Mahdi Taiebat a,b,, Boris Jeremić b, Yannis F. Dafalias b,c, Amir M. Kaynia a, Zhao Cheng d a Norwegian Geotechnical Institute, P.O. Box 393 Ullevaal

More information

Dynamic Analysis Contents - 1

Dynamic Analysis Contents - 1 Dynamic Analysis Contents - 1 TABLE OF CONTENTS 1 DYNAMIC ANALYSIS 1.1 Overview... 1-1 1.2 Relation to Equivalent-Linear Methods... 1-2 1.2.1 Characteristics of the Equivalent-Linear Method... 1-2 1.2.2

More information

Geotechnical Earthquake Engineering

Geotechnical Earthquake Engineering Geotechnical Earthquake Engineering by Dr. Deepankar Choudhury Professor Department of Civil Engineering IIT Bombay, Powai, Mumbai 400 076, India. Email: dc@civil.iitb.ac.in URL: http://www.civil.iitb.ac.in/~dc/

More information

The Nonlinear Time-Domain Modeling of Earthquake Soil Structure Interaction for Nuclear Power Plants: Nonlinear Contact Between Foundation and Rock

The Nonlinear Time-Domain Modeling of Earthquake Soil Structure Interaction for Nuclear Power Plants: Nonlinear Contact Between Foundation and Rock The Nonlinear Time-Domain Modeling of Earthquake Soil Structure Interaction for Nuclear Power Plants: Nonlinear Contact Between Foundation and Rock B. Jeremić, A. Kammerer, N. Tafazzoli, B. Kamrani, University

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

Seismic Design of a Hydraulic Fill Dam by Nonlinear Time History Method

Seismic 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 information

Experimental Study on The Seismic Assessment of Pile Foundation in Volcanic Ash Ground

Experimental Study on The Seismic Assessment of Pile Foundation in Volcanic Ash Ground Experimental Study on The Seismic Assessment of Pile Foundation in Volcanic Ash Ground Takuya EGAWA, Satoshi NISHIMOTO & Koichi TOMISAWA Civil Engineering Research Institute for Cold Region, Public Works

More information

Determination of Dynamic p-y Curves for Pile Foundations Under Seismic Loading

Determination of Dynamic p-y Curves for Pile Foundations Under Seismic Loading Determination of Dynamic p-y Curves for Pile Foundations Under Seismic Loading A. Rahmani, M. Taiebat, W.D. L. Finn, and C. E. Ventura Department of Civil Engineering, University of British Columbia, Vancouver,

More information

HORIZONTAL LOAD DISTRIBUTION WITHIN PILE GROUP IN LIQUEFIED GROUND

HORIZONTAL LOAD DISTRIBUTION WITHIN PILE GROUP IN LIQUEFIED GROUND 4 th International Conference on Earthquake Geotechnical Engineering June 2-28, 7 Paper No. 127 HORIZONTAL LOAD DISTRIBUTION WITHIN PILE GROUP IN LIQUEFIED GROUND Hiroko SUZUKI 1 and Kohji TOKIMATSU 2

More information

Stochastic Elastic-Plastic Finite Element Method for Performance Risk Simulations

Stochastic Elastic-Plastic Finite Element Method for Performance Risk Simulations Stochastic Elastic-Plastic Finite Element Method for Performance Risk Simulations Boris Jeremić 1 Kallol Sett 2 1 University of California, Davis 2 University of Akron, Ohio ICASP Zürich, Switzerland August

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

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

Advanced Geotechnical Simulations with OpenSees Framework

Advanced Geotechnical Simulations with OpenSees Framework Advanced Geotechnical Simulations with OpenSees Framework Boris Jeremić Department of Civil and Environmental Engineering University of California, Davis OpenSees Developer Symposium, RFS, August 26 http://sokocalo.engr.ucdavis.edu/

More information

SEISMIC HAZARD AND DESIGN BY USING ENERGY FLUX

SEISMIC HAZARD AND DESIGN BY USING ENERGY FLUX SEISMIC HAZARD AND DESIGN BY USING ENERGY FLUX Erdal SAFAK 1 And Steve HARMSEN SUMMARY Energy flux provides a dynamic measure of seismic energy, and can be used to characterize the intensity of ground

More information

Micro Seismic Hazard Analysis

Micro Seismic Hazard Analysis Micro Seismic Hazard Analysis Mark van der Meijde INTERNATIONAL INSTITUTE FOR GEO-INFORMATION SCIENCE AND EARTH OBSERVATION Overview Site effects Soft ground effect Topographic effect Liquefaction Methods

More information

A Visco-Elastic Model with Loading History Dependent Modulus and Damping for Seismic Response Analyses of Soils. Zhiliang Wang 1 and Fenggang Ma 2.

A Visco-Elastic Model with Loading History Dependent Modulus and Damping for Seismic Response Analyses of Soils. Zhiliang Wang 1 and Fenggang Ma 2. A Visco-Elastic Model with Loading History Dependent Modulus and Damping for Seismic Response Analyses of Soils Zhiliang Wang 1 and Fenggang Ma 2. 1 Senior Associate, AMEC Environment & Infrastructure,

More information

Intro to Soil Mechanics: the what, why & how. José E. Andrade, Caltech

Intro to Soil Mechanics: the what, why & how. José E. Andrade, Caltech Intro to Soil Mechanics: the what, why & how José E. Andrade, Caltech The What? What is Soil Mechanics? erdbaumechanik The application of the laws of mechanics (physics) to soils as engineering materials

More information

I. Locations of Earthquakes. Announcements. Earthquakes Ch. 5. video Northridge, California earthquake, lecture on Chapter 5 Earthquakes!

I. Locations of Earthquakes. Announcements. Earthquakes Ch. 5. video Northridge, California earthquake, lecture on Chapter 5 Earthquakes! 51-100-21 Environmental Geology Summer 2006 Tuesday & Thursday 6-9:20 p.m. Dr. Beyer Earthquakes Ch. 5 I. Locations of Earthquakes II. Earthquake Processes III. Effects of Earthquakes IV. Earthquake Risk

More information

Developing software to evaluate the liquefaction potential by using 2D numerical modeling: Applications.

Developing software to evaluate the liquefaction potential by using 2D numerical modeling: Applications. Developing software to evaluate the liquefaction potential by using 2D numerical modeling: Applications www.ingenieriasismica.utpl.edu.ec 1 Content 1. Introduction 2. Methods to evaluate the liquefaction

More information

Application of cyclic accumulation models for undrained and partially drained general boundary value problems

Application of cyclic accumulation models for undrained and partially drained general boundary value problems Application of cyclic accumulation models for undrained and partially drained general boundary value problems A. M. Page Risueño Yngres Dag 2014, May 15 th 2014 Introduction Cyclic loads in geotechnical

More information

NON LINEAR SOIL STRUCTURE INTERACTION : IMPACT ON THE SEISMIC RESPONSE OF STRUTURES. Alain PECKER

NON LINEAR SOIL STRUCTURE INTERACTION : IMPACT ON THE SEISMIC RESPONSE OF STRUTURES. Alain PECKER NON LINEAR SOIL STRUCTURE INTERACTION : IMPACT ON THE SEISMIC RESPONSE OF STRUTURES Alain PECKER OECD/NEA IAGE/ IAEA ISCC Workshop, on SSI Ottawa, 6 8 October, 2010 1 OUTLINE OF PRESENTATION Review of

More information

Wavelet Based Synthetic Earthquake Sources for Path and Soil Structure Interaction Modeling: Stress Testing of Nuclear Power Plants

Wavelet Based Synthetic Earthquake Sources for Path and Soil Structure Interaction Modeling: Stress Testing of Nuclear Power Plants Wavelet Based Synthetic Earthquake Sources for Path and Soil Structure Interaction Modeling: Stress Testing of Nuclear Power Plants Boris Jeremić, José Antonio Abell and Sumeet Kumar Sinha University of

More information

Dynamics: Domain Reduction Method. Case study

Dynamics: Domain Reduction Method. Case study Dynamics: Domain Reduction Method. Case study Andrzej Truty c ZACE Services Ltd August 2016 1 / 87 Scope of the lecture Example of a building subject to the earthquake (using Domain Reduction Method (DRM))

More information

CENTRIFUGE MODELING OF PILE FOUNDATIONS SUBJECTED TO LIQUEFACTION-INDUCED LATERAL SPREADING IN SILTY SAND

CENTRIFUGE MODELING OF PILE FOUNDATIONS SUBJECTED TO LIQUEFACTION-INDUCED LATERAL SPREADING IN SILTY SAND CENTRIFUGE MODELING OF PILE FOUNDATIONS SUBJECTED TO LIQUEFACTION-INDUCED LATERAL SPREADING IN SILTY SAND L. González 1, D. Lucas 2 and T. Abdoun 3 1 Assistant Professor, Dept. of Civil Engineering, University

More information

PRACTICAL THREE-DIMENSIONAL EFFECTIVE STRESS ANALYSIS CONSIDERING CYCLIC MOBILITY BEHAVIOR

PRACTICAL THREE-DIMENSIONAL EFFECTIVE STRESS ANALYSIS CONSIDERING CYCLIC MOBILITY BEHAVIOR PRACTICAL THREE-DIMENSIONAL EFFECTIVE STRESS ANALYSIS CONSIDERING CYCLIC MOBILITY BEHAVIOR Hiroyuki Yoshida 1, Kohji Tokimatsu 2, Tatsuya Sugiyama 3 and Tadahiko Shiomi 4 1 Member, Arch. & Struct. Eng.

More information

Liquefaction: Additional issues. This presentation consists of two parts: Section 1

Liquefaction: Additional issues. This presentation consists of two parts: Section 1 Liquefaction: Additional issues Ahmed Elgamal This presentation consists of two parts: Section 1 Liquefaction of fine grained soils and cyclic softening in silts and clays Section 2 Empirical relationship

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

Evaluation of dynamic behavior of culverts and embankments through centrifuge model tests and a numerical analysis

Evaluation of dynamic behavior of culverts and embankments through centrifuge model tests and a numerical analysis Computer Methods and Recent Advances in Geomechanics Oka, Murakami, Uzuoka & Kimoto (Eds.) 2015 Taylor & Francis Group, London, ISBN 978-1-138-00148-0 Evaluation of dynamic behavior of culverts and embankments

More information

STUDY OF THE BEHAVIOR OF PILE GROUPS IN LIQUEFIED SOILS

STUDY OF THE BEHAVIOR OF PILE GROUPS IN LIQUEFIED SOILS STUDY OF THE BEHAVIOR OF PILE GROUPS IN LIQUEFIED SOILS Shin-Tower Wang 1, Luis Vasquez 2, and Lymon C. Reese 3, Honorary Member,, ASCE ABSTRACT : 1&2 President & Project Manager, Ensoft, Inc. Email: ensoft@ensoftinc.com

More information

Seismic Responses of Liquefiable Sandy Ground with Silt Layers

Seismic Responses of Liquefiable Sandy Ground with Silt Layers Journal of Applied Science and Engineering, Vol. 16, No. 1, pp. 9 14 (2013) 9 Seismic Responses of Liquefiable Sandy Ground with Silt Layers H. T. Chen 1 *, B. C. Ridla 2, R. M. Simatupang 2 and C. J.

More information

Geotechnical Elements and Models in OpenSees

Geotechnical Elements and Models in OpenSees Geotechnical Elements and Models in OpenSees Pedro Arduino University of Washington, Seattle OpenSees Days 2008, OpenSees User Workshop, Monday Sept 8, 2008 Type of Geotechnical Problems that can be solved

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

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

2D Liquefaction Analysis for Bridge Abutment

2D Liquefaction Analysis for Bridge Abutment D Liquefaction Analysis for Bridge Abutment Tutorial by Angel Francisco Martinez Integrated Solver Optimized for the next generation 64-bit platform Finite Element Solutions for Geotechnical Engineering

More information

An Overview of Geotechnical Earthquake Engineering

An Overview of Geotechnical Earthquake Engineering An Overview of Geotechnical Earthquake Engineering Sudhir K Jain Slide 1 Outline Introduction to Seismic Design Principle Dynamic Soil Properties Site Effects Soil Structure Interaction Issues for Foundation

More information

SEISMIC RESPONSE OF SINGLE DEGREE OF FREEDOM STRUCTURAL FUSE SYSTEMS

SEISMIC RESPONSE OF SINGLE DEGREE OF FREEDOM STRUCTURAL FUSE SYSTEMS 3 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August -6, 4 Paper No. 377 SEISMIC RESPONSE OF SINGLE DEGREE OF FREEDOM STRUCTURAL FUSE SYSTEMS Ramiro VARGAS and Michel BRUNEAU

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

BOĞAZİÇİ UNIVERSITY KANDILLI OBSERVATORY AND EARTHQUAKE RESEARCH INSTITUTE CHANGING NEEDS OF ENGINEERS FOR SEISMIC DESIGN

BOĞAZİÇİ UNIVERSITY KANDILLI OBSERVATORY AND EARTHQUAKE RESEARCH INSTITUTE CHANGING NEEDS OF ENGINEERS FOR SEISMIC DESIGN BOĞAZİÇİ UNIVERSITY KANDILLI OBSERVATORY AND EARTHQUAKE RESEARCH INSTITUTE CHANGING NEEDS OF ENGINEERS FOR SEISMIC DESIGN Erdal Şafak Department of Earthquake Engineering Kandilli Observatory and Earthquake

More information

Important Concepts. Earthquake hazards can be categorized as:

Important Concepts. Earthquake hazards can be categorized as: Lecture 1 Page 1 Important Concepts Monday, August 17, 2009 1:05 PM Earthquake Engineering is a branch of Civil Engineering that requires expertise in geology, seismology, civil engineering and risk assessment.

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 Simulation of the Response of Sandy Soils Treated with PV-drains

Numerical Simulation of the Response of Sandy Soils Treated with PV-drains Numerical Simulation of the Response of Sandy Soils Treated with PV-drains Antonios Vytiniotis, Andrew J. Whittle & Eduardo Kausel MIT Department of Civil & Environmental Engineering Progress Report for

More information

Frequency-Dependent Amplification of Unsaturated Surface Soil Layer

Frequency-Dependent Amplification of Unsaturated Surface Soil Layer Frequency-Dependent Amplification of Unsaturated Surface Soil Layer J. Yang, M.ASCE 1 Abstract: This paper presents a study of the amplification of SV waves obliquely incident on a surface soil layer overlying

More information

DYNAMIC PROPERTIES OF STRUCTURE-PILE SYSTEM USING MOCK-UP MODEL

DYNAMIC PROPERTIES OF STRUCTURE-PILE SYSTEM USING MOCK-UP MODEL DYNAMIC ROERTIES OF STRUCTURE-ILE SYSTEM USING MOCK-U MODEL Jun-ichi SUZUMURA 1, Hiroshi ASEGA, Toshiaki ARAI, Masataka NAKAMURA 4, Kazufumi HANADA, Hiroo SHIOJIRI 6 And Akira KASAHARA 7 SUMMARY The dynamic

More information

THE NATURE OF SITE RESPONSE DURING EARTHQUAKES. Mihailo D. Trifunac

THE NATURE OF SITE RESPONSE DURING EARTHQUAKES. Mihailo D. Trifunac THE NATURE OF SITE RESPONSE DURING EARTHQUAKES Mihailo D. Trifunac Dept. of Civil Eng., Univ. of Southern California, Los Angeles, CA 90089, U.S.A. http://www.usc.edu/dept/civil_eng/earthquale_eng/ What

More information

An entire branch of Earth science, called, is devoted to the study of earthquakes.

An entire branch of Earth science, called, is devoted to the study of earthquakes. Lesson One Essential Question Where do earthquakes take place? What causes earthquakes? What are three different types of faults that occur at plate boundaries? How does energy from earthquakes travels

More information

INELASTIC SEISMIC RESPONSE OF BRIDGE STRUCTURES SUPPORTED ON EXTENDED PILE SHAFTS

INELASTIC SEISMIC RESPONSE OF BRIDGE STRUCTURES SUPPORTED ON EXTENDED PILE SHAFTS INELASTIC SEISMIC RESPONSE OF BRIDGE STRUCTURES SUPPORTED ON EXTENDED PILE SHAFTS Tara C. HUTCHINSON Graduate Student, Department of Civil & Environmental Engineering, University of California, Davis,

More information

THE USE OF INPUT ENERGY FOR SEISMIC HAZARD ASSESSMENT WITH DIFFERENT DUCTILITY LEVEL

THE USE OF INPUT ENERGY FOR SEISMIC HAZARD ASSESSMENT WITH DIFFERENT DUCTILITY LEVEL th World Conference on Earthquake Engineering Vancouver, B.C., Canada August -6, Paper No. 8 THE USE OF INPUT ENERGY FOR SEISMIC HAZARD ASSESSMENT WITH DIFFERENT DUCTILITY LEVEL Mao-Sheng GONG And Li-Li

More information

Role of hysteretic damping in the earthquake response of ground

Role of hysteretic damping in the earthquake response of ground Earthquake Resistant Engineering Structures VIII 123 Role of hysteretic damping in the earthquake response of ground N. Yoshida Tohoku Gakuin University, Japan Abstract Parametric studies are carried out

More information

IN SITU TESTING TECHNOLOGY FOR FOUNDATION & EARTHQUAKE ENGINEERING. Wesley Spang, Ph.D., P.E. AGRA Earth & Environmental, Inc.

IN SITU TESTING TECHNOLOGY FOR FOUNDATION & EARTHQUAKE ENGINEERING. Wesley Spang, Ph.D., P.E. AGRA Earth & Environmental, Inc. IN SITU TESTING TECHNOLOGY FOR FOUNDATION & EARTHQUAKE ENGINEERING Wesley Spang, Ph.D., P.E. AGRA Earth & Environmental, Inc. Portland, Oregon In situ testing of soil, which essentially consists of evaluating

More information

EFFECTIVE STRESS ANALYSES OF TWO SITES WITH DIFFERENT EXTENT OF LIQUEFACTION DURING EAST JAPAN EARTHQUAKE

EFFECTIVE STRESS ANALYSES OF TWO SITES WITH DIFFERENT EXTENT OF LIQUEFACTION DURING EAST JAPAN EARTHQUAKE Proceedings of the International Symposium on Engineering Lessons Learned from the 211 Great East Japan Earthquake, March 1-4, 212, Tokyo, Japan EFFECTIVE STRESS ANALYSES OF TWO SITES WITH DIFFERENT EXTENT

More information

DYNAMIC CENTRIFUGE TEST OF PILE FOUNDATION STRUCTURE PART TWO : BEHAVIOR OF STRUCTURE AND GROUND DURING EXTREME EARTHQUAKE CONDITIONS

DYNAMIC CENTRIFUGE TEST OF PILE FOUNDATION STRUCTURE PART TWO : BEHAVIOR OF STRUCTURE AND GROUND DURING EXTREME EARTHQUAKE CONDITIONS DYNAMIC CENTRIFUGE TEST OF PILE FOUNDATION STRUCTURE PART TWO : BEHAVIOR OF STRUCTURE AND GROUND DURING EXTREME EARTHQUAKE CONDITIONS Ryouichi BABASAKI 1, Katsuo TOGASHI 2, Satoru NAKAFUSA 3, Toshio HASHIBA

More information

Centrifuge Shaking Table Tests and FEM Analyses of RC Pile Foundation and Underground Structure

Centrifuge Shaking Table Tests and FEM Analyses of RC Pile Foundation and Underground Structure Centrifuge Shaking Table s and FEM Analyses of RC Pile Foundation and Underground Structure Kenji Yonezawa Obayashi Corporation, Tokyo, Japan. Takuya Anabuki Obayashi Corporation, Tokyo, Japan. Shunichi

More information

Piles in Lateral Spreading due to Liquefaction: A Physically Simplified Method Versus Centrifuge Experiments

Piles in Lateral Spreading due to Liquefaction: A Physically Simplified Method Versus Centrifuge Experiments "Pile-Group Response to Large Soil Displacements and Liquefaction: Centrifuge Experiments Versus A Physically Simplified Analysis", Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol.

More information

Geodynamics in ZSoil 2012

Geodynamics in ZSoil 2012 Geodynamics in ZSoil 212 Andrzej Truty ZACE Services 1.9.211 Dynamic capabilities of ZSoil 212 Transient linear/nonlinear time history analysis for 1 structures 2 single-phase soil-structure interaction

More information

EFFECTS OF GROUND WATER ON SEISMIC RESPONSES OF BASIN

EFFECTS OF GROUND WATER ON SEISMIC RESPONSES OF BASIN EFFECTS OF GROUND WATER ON SEISMIC RESPONSES OF BASIN Huei-Tsyr CHEN And Jern-Chern HO 2 SUMMARY It has long been recognized that the local soil and geology conditions may affect significantly the nature

More information

Caltrans Guidelines on Foundation Loading Due to Liquefaction Induced Lateral Spreading

Caltrans Guidelines on Foundation Loading Due to Liquefaction Induced Lateral Spreading Caltrans Guidelines on Foundation Loading Due to Liquefaction Induced Lateral Spreading Tom Shantz, Caltrans January 28, 2011 NACGEA Workshop PEER TEAM Scott Ashford (OSU) Ross Boulanger (UCD) Scott Brandenberg

More information

An Evaluation of the Force Reduction Factor in the Force-Based Seismic Design

An Evaluation of the Force Reduction Factor in the Force-Based Seismic Design An Evaluation of the Force Reduction Factor in the Force-Based Seismic Design Gakuho Watanabe and Kazuhiko Kawashima Tokyo Institute of Technology, O-Okayama, Meguro, Tokyo, Japan, 5-55 ABSTRACT This paper

More information

Effect of Dampers on Seismic Demand of Short Period Structures

Effect of Dampers on Seismic Demand of Short Period Structures Effect of Dampers on Seismic Demand of Short Period Structures Associate Professor of Civil Engineering, University of Jordan. Email: armouti@ju.edu.jo ABSTRACT Seismic behavior of a single bay frame with

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

TIME-DEPENDENT BEHAVIOR OF PILE UNDER LATERAL LOAD USING THE BOUNDING SURFACE MODEL

TIME-DEPENDENT BEHAVIOR OF PILE UNDER LATERAL LOAD USING THE BOUNDING SURFACE MODEL TIME-DEPENDENT BEHAVIOR OF PILE UNDER LATERAL LOAD USING THE BOUNDING SURFACE MODEL Qassun S. Mohammed Shafiqu and Maarib M. Ahmed Al-Sammaraey Department of Civil Engineering, Nahrain University, Iraq

More information

Dynamic Analysis Using Response Spectrum Seismic Loading

Dynamic Analysis Using Response Spectrum Seismic Loading Dynamic Analysis Using Response Spectrum Seismic Loading Paleti Teja M.Tech (Structural Engineering) Department of Civil Engineering Jogaiah Institute of Technology & Sciences College of Engineering Kalagampudi,

More information

Soil Properties - II

Soil Properties - II Soil Properties - II Amit Prashant Indian Institute of Technology andhinagar Short Course on eotechnical Aspects of Earthquake Engineering 04 08 March, 2013 Seismic Waves Earthquake Rock Near the ground

More information

A THEORETICAL MODEL FOR SITE COEFFICIENTS IN BUILDING CODE PROVISIONS

A THEORETICAL MODEL FOR SITE COEFFICIENTS IN BUILDING CODE PROVISIONS 13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 2004 Paper No. 3029 A THEORETICAL MODEL FOR SITE COEFFICIENTS IN BUILDING CODE PROVISIONS Roger D. Borcherdt 1 SUMMARY

More information

MODELING GEOMATERIALS ACROSS SCALES

MODELING GEOMATERIALS ACROSS SCALES MODELING GEOMATERIALS ACROSS SCALES JOSÉ E. ANDRADE DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING AFOSR WORKSHOP ON PARTICULATE MECHANICS JANUARY 2008 COLLABORATORS: DR XUXIN TU AND MR KIRK ELLISON

More information

Geotechnical Modeling Issues

Geotechnical Modeling Issues Nonlinear Analysis of Viaducts and Overpasses Geotechnical Modeling Issues Steve Kramer Pedro Arduino Hyung-Suk Shin University of Washington The Problem Approach Soil Soil Soil Soil Soil Soil Soil Soil

More information

QUAKE/W ProShake Comparison

QUAKE/W ProShake Comparison 1 Introduction QUAKE/W Comparison is a commercially available software product for doing one-dimensional ground response analyses. It was developed and is being maintained under the guidance of Professor

More information

AMPLIFICATION OF GROUND STRAIN IN IRREGULAR SURFACE LAYERS DURING STRONG GROUND MOTION

AMPLIFICATION OF GROUND STRAIN IN IRREGULAR SURFACE LAYERS DURING STRONG GROUND MOTION AMPLIFICATION OF ROUND STRAIN IN IRREULAR SURFACE LAYERS DURIN STRON ROUND MOTION Mio KOBAYASHI 1, Hirokazu ANDO And Takahito WATANABE SUMMARY The characteristics of ground response in irregular surface

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

POST CYCLIC SHEAR STRENGTH OF FINE GRAINED SOILS IN ADAPAZARI TURKEY DURING 1999 KOCAELI EARTHQUAKE

POST CYCLIC SHEAR STRENGTH OF FINE GRAINED SOILS IN ADAPAZARI TURKEY DURING 1999 KOCAELI EARTHQUAKE POST CYCLIC SHEAR STRENGTH OF FINE GRAINED SOILS IN ADAPAZARI TURKEY DURING 1999 KOCAELI EARTHQUAKE A.Erken 1, Z.Kaya 2 and A.Şener 3 1 Professor Istanbul Technical University, Civil Engineering Faculty,

More information

Cyclic Behavior of Sand and Cyclic Triaxial Tests. Hsin-yu Shan Dept. of Civil Engineering National Chiao Tung University

Cyclic Behavior of Sand and Cyclic Triaxial Tests. Hsin-yu Shan Dept. of Civil Engineering National Chiao Tung University Cyclic Behavior of Sand and Cyclic Triaxial Tests Hsin-yu Shan Dept. of Civil Engineering National Chiao Tung University Causes of Pore Pressure Buildup due to Cyclic Stress Application Stress are due

More information

Effect of Liquefaction on Displacement Spectra

Effect of Liquefaction on Displacement Spectra Effect of Liquefaction on Displacement Spectra Rui SUN 1, Longwei Chen 2, Xiaoming YUAN 3, Yi QIU 4 1 Professor, Dept. of Geotechnical Engineering, Institute of Engineering Mechanics, Harbin. China 2 PHD,

More information

The Effect of Using Hysteresis Models (Bilinear and Modified Clough) on Seismic Demands of Single Degree of Freedom Systems

The Effect of Using Hysteresis Models (Bilinear and Modified Clough) on Seismic Demands of Single Degree of Freedom Systems American Journal of Applied Sciences Original Research Paper The Effect of Using Hysteresis Models (Bilinear and Modified Clough) on Seismic Demands of Single Degree of Freedom Systems 1 Ahmad N. Tarawneh,

More information

MODELING GEOMATERIALS ACROSS SCALES JOSÉ E. ANDRADE DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING EPS SEMINAR SERIES MARCH 2008

MODELING GEOMATERIALS ACROSS SCALES JOSÉ E. ANDRADE DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING EPS SEMINAR SERIES MARCH 2008 MODELING GEOMATERIALS ACROSS SCALES JOSÉ E. ANDRADE DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING EPS SEMINAR SERIES MARCH 2008 COLLABORATORS: DR XUXIN TU AND MR KIRK ELLISON THE ROADMAP MOTIVATION

More information

Post-earthquake residual deformations and seismic performance assessment of buildings

Post-earthquake residual deformations and seismic performance assessment of buildings Post-earthquake residual deformations and seismic performance assessment of buildings Ufuk Yazgan and Alessandro Dazio Group of Earthquake Engineering and Structural Dynamics Institute of Structural Engineering,

More information

STRENGTH REDUCTION FACTORS CONSIDERING SOIL-STRUCTURE INTERACTION

STRENGTH REDUCTION FACTORS CONSIDERING SOIL-STRUCTURE INTERACTION 13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 4 Paper No. 331 STRENGTH REDUCTION FACTORS CONSIDERING SOIL-STRUCTURE INTERACTION Mohammad Ali GHANNAD 1, Hossein JAHANKHAH

More information

Seismic Design of Bridges

Seismic Design of Bridges Seismic Design of Bridges Anat Ruangrassamee, Ph.D. Center of Excellence in Earthquake Engineering and Vibration Department of Civil Engineering Chulalongkorn Universit 1. Design philosoph Course Outline

More information

Harmonized European standards for construction in Egypt

Harmonized European standards for construction in Egypt Harmonized European standards for construction in Egypt EN 1998 - Design of structures for earthquake resistance Jean-Armand Calgaro Chairman of CEN/TC250 Organised with the support of the Egyptian Organization

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

INFLUENCE OF SOIL NONLINEARITY AND LIQUEFACTION ON DYNAMIC RESPONSE OF PILE GROUPS

INFLUENCE OF SOIL NONLINEARITY AND LIQUEFACTION ON DYNAMIC RESPONSE OF PILE GROUPS INFLUENCE OF SOIL NONLINEARITY AND LIQUEFACTION ON DYNAMIC RESPONSE OF PILE GROUPS Rajib Sarkar 1 and B.K. Maheshwari 2 1 Research Scholar, Dept. of Earthquake Engineering, IIT Roorkee, India, e-mail:

More information