Fundamentals of Earthquake Engineering

by Amr Elnashai (University of Illinois at Urbana-Champaign); Luigi Di Sarno (University of Illinois at Urbana-Champaign )

• ISBN13: 9780470024850
• ISBN10: 0470024852
• Format: eBook
• Copyright: 2008-09-01
• Publisher: Wiley

Summary

Fundamentals of Earthquake Engineering combines aspects of engineering seismology, structural and geotechnical earthquake engineering to assemble the vital components required for a deep understanding of response of structures to earthquake ground motion, from the seismic source to the evaluation of actions and deformation required for design.The nature of earthquake risk assessment is inherently multi-disciplinary. Whereas Fundamentals of Earthquake Engineering addresses only structural safety assessment and design, the problem is cast in its appropriate context by relating structural damage states to societal consequences and expectations, through the fundamental response quantities of stiffness, strength and ductility. The book is designed to support graduate teaching and learning, introduce practicing structural and geotechnical engineers to earthquake analysis and design problems, as well as being a reference book for further studies.Fundamentals of Earthquake Engineering includes material on the nature of earthquake sources and mechanisms, various methods for the characterization of earthquake input motion, damage observed in reconnaissance missions, modeling of structures for the purposes of response simulation, definition of performance limit states, structural and architectural systems for optimal seismic response, and action and deformation quantities suitable for design. The accompanying website at www.wiley.com/go/elnashai contains a comprehensive set of slides illustrating the chapters and appendices, as well as a set of problems with solutions and worked-through examples. The book, slides and problem set constitute a tried and tested system for a single-semester graduate course. The approach taken avoids tying the book to a specific regional seismic design code of practice and ensures its global appeal to graduate students and practicing engineers.

Table of Contents

About the Authors

Foreword

Preface

Introduction

Earthquake Characteristics

Causes of Earthquakes

Plate Tectonics Theory

Faulting

Seismic Waves

Measuring Earthquakes

Intensity

Magnitude

Intensity-Magnitude Relationships

Source-to-Site Effects

Directional Effects

Site Effects

Dispersion and Incoherence

Effects of Earthquakes

Damage to Buildings and Lifelines

Effects on the Ground

Human and Financial Losses

References

Response of Structures

General

Conceptual Framework

Definitions

Strength-versus Ductility-Based Response

Member-versus System-Level Consideration

Nature of Seismic Effects

Fundamental Response Quantities

Social-Economic Limit States

Structural Response Characteristics

Stiffness

Strength

Ductility

Overstrength

Damping

Relationship between Strength, Overstrength and Ductility: Force Reduction Factor 'Supply'

References

Earthquake Input Motion

General

Earthquake Occurrence and Return Period

Ground-Motion Models (Attenuation Relationships)

Features of Strong-Motion Data for Attenuation Relationships

Attenuation Relationship for Europe

Attenuation Relationship for Japan

Attenuation Relationships for North America

Worldwide Attenuation Relationships

Earthquake Spectra

Factors Influencing Response Spectra

Elastic and Inelastic Spectra

Simplified Spectra

Force Reduction Factors (Demand)

Design Spectra

Vertical Component of Ground Motion

Vertical Motion Spectra

Earthquake Records

Natural Records

Artificial Records

Records Based on Mathematical Formulations

Scaling of Earthquake Records

Duration and Number of Cycles of Earthquake Ground Motions

Use of Earthquake Databases

Software for Deriving Spectra and Generation of Ground-Motion Records

Derivation of Earthquake Spectra

Generation of Ground-Motion Records

References

Response Evaluation

General

Conceptual Framework

Ground Motion and Load Modelling

Seismic Load Combinations

Structural Modelling

Materials

Sections

Components and Systems for Structural Modelling

Masses

Methods of Analysis

Dynamic Analysis

Static Analysis

Simplified Code Method

Performance Levels and Objectives

Output for Assessment

Actions

Deformations

Concluding Remarks

References

Structural Configurations and Systems for Effective Earthquake Resistance

Damage to Structures

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