1st Edition

Structural Dynamics in Earthquake and Blast Resistant Design

By BK Raghu Prasad Copyright 2021
336 Pages 219 B/W Illustrations
by CRC Press

336 Pages 219 B/W Illustrations
by CRC Press

336 Pages 219 B/W Illustrations
by CRC Press

Focusing on the fundamentals of structural dynamics required for earthquake blast resistant design, Structural Dynamics in Earthquake and Blast Resistant Design initiates a new approach of blending a little theory with a little practical design in order to bridge this unfriendly gap, thus making the book more structural engineer-friendly. This is attempted by introducing the equations of... Read more
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

Biography

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.