Structural Dynamics and Earthquake Resistant Design: 1st Edition (Hardback) book cover

Structural Dynamics and Earthquake Resistant Design

1st Edition

By BK Raghu Prasad

CRC Press

332 pages | 219 B/W Illus.

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Hardback: 9780815370185
pub: 2020-07-07
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Description

Focussing on fundamentals of structural dynamics required for earthquake resistant design, the book initiates by mentioning equations of motion followed by free and forced vibrations of SDF and MDF systems. Relevant impulse, pulse and sinusoidal inputs obtained by directly solving the differential equations of motion and Duhammel’s integral are illustrated. Responses of a multistory building subjected to earthquake ground motion by direct integration as well as mode superposition are explained including inelastic hysteretic seismic behaviour of tall buildings with ductility of RC structures. Solutions of building frames using software like ETABS and STAAD are explained using Octave/Scilab.

Table of Contents

Chapter 1 Introduction

1.1 Types of Analysis

1.2 Modelling of a Dynamic System

1.2.1 Degrees of Freedom

1.3 D’Alembert’s principle

Chapter 2 Single Degree of Freedom Systems(S.D.F Systems)

2.1 Introduction

2.2 Free and Forced Vibrations

2.2.1 Free Vibrations

2.2.2 Damped Free Vibrations

2.2.3 Logarithmic decrement

2.3 Forced Vibration of a Damped Single Degree

of Freedom

2.4 A Single-Degree-of-Freedom System Subjected to

Support Motion

2.5 Rayleigh’s Method to Obtain Natural Frequency

2.6 Response in Frequency Domain and Laplace

Transformation

2.7 Problems

2.8 Exercise Problems

Chapter 3 Two Degree of Freedom System

3.1 Forced Response of Damped Two Storeyed Building

3.2 Exercise Problems

Chapter 4 Force Transmitted to the Support

4.1 Exercise Problems

Chapter 5 Duhamel’s Integral

Chapter 6 Modal Analysis

6.1 Multi Degree of Freedom Systems Subjected To

External Dynamic Forces- Modal Analysis

6.2 A Multi-Storeyed Building Subjected To Ground

Motions-Modal Analysis

6.3 Problems

6.4 Exercise Problems for Chapters 5 and 6

Chapter 7 Earthquake Resistant Design

7.1 Introduction

7.2 Structural Analysis

7.3 Structural Model

7.4 Shear building

7.5 Response Spectrum

7.6 Capacity Spectrum

Chapter 8 Inelastic Vibration Absorber Subjected to Earthquake

Ground Motion

8.1 Introduction

8.2 The Linear Elastic Vibration Absorber

8.3 The Hysteric Vibration Absorber

8.4 Structural Model and the Equations of Motion

8.5 Numerical Studies

8.6 Analysis of Results

8.6.1 Response of the Absorber Mass

8.6.2 Response History Curves

8.6.3 Hysteric Energy Dissipation

8.6.4 Influence of Viscous Damping

8.6.5 Maximum Ductility Response Spectra

8.7 Conclusions

Chapter 9 Inelastic Torsional Response of a Single-Storeyed Framed

Structure-Two Degree-of-Freedom System

9.1 Introduction

9.2 Earthquake Response of Elastic Structure with Coupled

Translational and Torsional Motions

9.3 Structural Model

9.4 Equations of Motion

9.4.1 Solution of the Equations of Motion

9.4.2 Parameters Considered in the Study

9.4.3 Details of the Computer Programme

9.5 Discussion of Results

9.5.1 Influence of Eccentricity Envelopes of

maximum frame ductility

9.5.2 Influence of Yield Strength

9.5.3 Influence of P-Δ Effect

9.5.4 Influence of Strengthening the Exterior Frames

9.5.5 Response History Curves

9.5.6 Energy Dissipation due to Hysteresis

9.5.7 Maximum Ductility Response Spectra

9.6 Summary and Conclusions

Chapter 10 Inelastic Torsional Response of a Single-Storeyed Framed

Structure-Three Degrees-of-Freedom System

10.1 Introduction

10.2 Structural Model

10.2.1 Yielding Behaviour

10.3 Equations of Motion

10.4 Solutions of the Equations of Motion

10.4.1 Parameters Considered in the Study

10.5 Discussion of Results

10.5.1 Influence of Eccentricity

10.5.2 Influence of Yield Strength qiuo = qivo = qi and

period (Tiu = Tiv = Ti)

10.5.3 Time- Response Curves

10.6 Summary and Conclusions

Chapter 11 Earthquake Resistant Design as per IS 1893:2016

11.1 Introduction

11.2 Project - 01

11.2.1 Introduction

11.2.2 Floating columns

11.2.3 Soft Storey

11.2.4 Building asymmetric in plan

11.2.5 Mass Participation factor

11.2.6 Conclusions

11.3 PROJECT - 02

11.3.1 Introduction

11.3.2 Analysis

11.3.3 Conclusions

11.4 Problems

Chapter 12 Miscellaneous Aspects

12.1 Introduction

12.2 Retrofitting Methods in RCC structures

12.2.1 Structure-level Retrofit

12.2.2 Addition of shear walls

12.2.3 Base Isolators

12.2.4 Addition of Steel bracing

12.2.5 Member-level retrofit

12.3 Response Spectrum analysis using PYTHON

12.3.1 About the programming language: PYTHON

12.3.2 History of PYTHON

12.3.3 Application of PYTHON - in Civil Engineering

12.3.4 Python Architecture

12.3.5 Python Libraries

12.3.6 Static loading problem using Python

12.3.7 Dynamic Loading problem

12.3.8 Response spectrum analysis of building using

PYTHON

12.4 Hybrid building under seismic forces

12.4.1 Introduction

12.4.2 Types of connections

12.4.3 Earthquake responses of Hybrid building

12.5 Analysis and design of blast resisting structures (IS

4991:1968)

12.5.1 General characteristics of blast and

consequences on structures

12.5.2 Loading effects due to blasts

12.5.3 Blast load on above ground structures (IS

4991:1968)

12.6 Response of RCC Asymmetric Buildings subjected to

earthquake ground motions

12.6.1 Structural Modelling

12.6.2 Modelling And Analysis Of Structural

Irregularities

About the Author

B.K. Raghu Prasad retired as a professor from Civil Engineering deparetment of Indian Academy of Sciences, Bangalore, India and his areas of research are fracture mechanics of concrete, structural dynamics, earthquake resistant design, finite element and boundary element methods. He has more than 60 research papers to his credit and he has supervised more than 25 students for thier Ph.D degrees.

Subject Categories

BISAC Subject Codes/Headings:
TEC009020
TECHNOLOGY & ENGINEERING / Civil / General
TEC009120
TECHNOLOGY & ENGINEERING / Civil / Earthquake
TEC063000
TECHNOLOGY & ENGINEERING / Structural