Structural Dynamics in Earthquake and Blast Resistant Design

ISBN-13: 9780815370185 / Angielski / Twarda / 2020 / 336 str.

Bk Raghu Prasad

Opis

Focussing on structural dynamics required for earthquake resistant design, the book describes equations of motion, vibrations of systems and other related factors including responses of a multistory building subjected to earthquake ground motion.

Spis treści

Chapter 1 Introduction1.1 Types of Analysis1.2 Modelling of a Dynamic System1.2.1 Degrees of Freedom1.3 D’Alembert’s principleChapter 2 Single Degree of Freedom Systems(S.D.F Systems)2.1 Introduction2.2 Free and Forced Vibrations2.2.1 Free Vibrations2.2.2 Damped Free Vibrations2.2.3 Logarithmic decrement2.3 Forced Vibration of a Damped Single Degreeof Freedom2.4 A Single-Degree-of-Freedom System Subjected toSupport Motion2.5 Rayleigh’s Method to Obtain Natural Frequency2.6 Response in Frequency Domain and LaplaceTransformation2.7 Problems2.8 Exercise ProblemsChapter 3 Two Degree of Freedom System3.1 Forced Response of Damped Two Storeyed Building3.2 Exercise ProblemsChapter 4 Force Transmitted to the Support4.1 Exercise ProblemsChapter 5 Duhamel’s IntegralChapter 6 Modal Analysis6.1 Multi Degree of Freedom Systems Subjected ToExternal Dynamic Forces- Modal Analysis6.2 A Multi-Storeyed Building Subjected To GroundMotions-Modal Analysis6.3 Problems6.4 Exercise Problems for Chapters 5 and 6Chapter 7 Earthquake Resistant Design7.1 Introduction7.2 Structural Analysis7.3 Structural Model7.4 Shear building7.5 Response Spectrum7.6 Capacity SpectrumChapter 8 Inelastic Vibration Absorber Subjected to EarthquakeGround Motion8.1 Introduction8.2 The Linear Elastic Vibration Absorber8.3 The Hysteric Vibration Absorber8.4 Structural Model and the Equations of Motion8.5 Numerical Studies8.6 Analysis of Results8.6.1 Response of the Absorber Mass8.6.2 Response History Curves8.6.3 Hysteric Energy Dissipation8.6.4 Influence of Viscous Damping8.6.5 Maximum Ductility Response Spectra8.7 ConclusionsChapter 9 Inelastic Torsional Response of a Single-Storeyed FramedStructure-Two Degree-of-Freedom System9.1 Introduction9.2 Earthquake Response of Elastic Structure with CoupledTranslational and Torsional Motions9.3 Structural Model9.4 Equations of Motion9.4.1 Solution of the Equations of Motion9.4.2 Parameters Considered in the Study9.4.3 Details of the Computer Programme9.5 Discussion of Results9.5.1 Influence of Eccentricity Envelopes ofmaximum frame ductility9.5.2 Influence of Yield Strength9.5.3 Influence of P-Δ Effect9.5.4 Influence of Strengthening the Exterior Frames9.5.5 Response History Curves9.5.6 Energy Dissipation due to Hysteresis9.5.7 Maximum Ductility Response Spectra9.6 Summary and ConclusionsChapter 10 Inelastic Torsional Response of a Single-Storeyed FramedStructure-Three Degrees-of-Freedom System10.1 Introduction10.2 Structural Model10.2.1 Yielding Behaviour10.3 Equations of Motion10.4 Solutions of the Equations of Motion10.4.1 Parameters Considered in the Study10.5 Discussion of Results10.5.1 Influence of Eccentricity10.5.2 Influence of Yield Strength qiuo = qivo = qi andperiod (Tiu = Tiv = Ti)10.5.3 Time- Response Curves10.6 Summary and ConclusionsChapter 11 Earthquake Resistant Design as per IS 1893:201611.1 Introduction11.2 Project - 0111.2.1 Introduction11.2.2 Floating columns11.2.3 Soft Storey11.2.4 Building asymmetric in plan11.2.5 Mass Participation factor11.2.6 Conclusions11.3 PROJECT - 0211.3.1 Introduction11.3.2 Analysis11.3.3 Conclusions11.4 ProblemsChapter 12 Miscellaneous Aspects12.1 Introduction12.2 Retrofitting Methods in RCC structures12.2.1 Structure-level Retrofit12.2.2 Addition of shear walls12.2.3 Base Isolators12.2.4 Addition of Steel bracing12.2.5 Member-level retrofit12.3 Response Spectrum analysis using PYTHON12.3.1 About the programming language: PYTHON12.3.2 History of PYTHON12.3.3 Application of PYTHON - in Civil Engineering12.3.4 Python Architecture12.3.5 Python Libraries12.3.6 Static loading problem using Python12.3.7 Dynamic Loading problem12.3.8 Response spectrum analysis of building usingPYTHON12.4 Hybrid building under seismic forces12.4.1 Introduction12.4.2 Types of connections12.4.3 Earthquake responses of Hybrid building12.5 Analysis and design of blast resisting structures (IS4991:1968)12.5.1 General characteristics of blast andconsequences on structures12.5.2 Loading effects due to blasts12.5.3 Blast load on above ground structures (IS4991:1968)12.6 Response of RCC Asymmetric Buildings subjected toearthquake ground motions12.6.1 Structural Modelling12.6.2 Modelling And Analysis Of StructuralIrregularities

O autorze

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.