Course

Unit 1

Structural Dynamics

Introduction to dynamic – Need for structural dynamics – Degrees of Freedom – Damping – Equations of Motion – Single Degree of Freedom system – Free vibration response of undamped and damped system – Forced vibration response (Harmonic loading) – Response to Impulse – Duhamel Intergral – Multi Degree of Freedom system – Equation of Motion – Free vibration response – Orthogonality – Forced vibration response – Direct Integration Techniques (Newmark gamma – beta method) – Hands-on: Program to estimate response of a building for a given ground motion.

Unit 2

Earthquake Engineering

Engineering Seismimology – Earthquakes and Ground motion – Seismic waves –History of Seismic Design – Idealization of Buildings – Response Spectra – Design Spectra – Move to Lateral Displacement – Estimating Displacement Demand – Performance-based design – Resilience-based Design

Unit 3

Code Provisions

Basics of Capacity Design – Failure Mechanism – Provisions of IS 1893 part 1 (2016) to estimate lateral force demand on buildings – Equivalent Static Method and Dynamic Method – Provisions of IS 13920 (2016) – Introduction to seismic retrofit of buildings

Prerequisite(s): 23CIEXXX Structural Analysis II, 23CIEXXX Basic Reinforced Concrete Design

Course Objectives

To explain basic concepts related to dynamics of single degree of freedom systems

To explain basic concepts related to dynamics of multiple degree of freedom systems

To introduce code provisions to estimate seismic demand as per relevant code

To explain provisions related to seismic design of buildings as per relevant code

Course Outcome

CO1: Explain the importance of structural dynamics with basic terminology

CO2: Assess and analyse the single DOF and 2 DOF structures and its responses

CO3: Understand the development of seismic design and engineering seismology

CO4: Understand the concept of analysis and design of earthquake resistant simple framed structures.

CO-PO Mapping

Textbook(s)

Mario Paz,“Structural Dynamics”, Spinger, 2007

Pankaj Agarwal and Manish Shrikhande, “Earthquake ResistantDesignofStructures”,PHI Learning, 2009

Reference book(s)

Anil K Chopra,“Dynamics of Structures: Theory and Applications to Earthquake Engineering”,Pearson Education, 2008

Duggal SK, “Earthquake Resistant Design of Structures”, Oxford University Press, 2013

IS1893(1) 2016, Criteria for Earthquake Resistant structures General Provisions and Buildings

IS15988 (2013), Seismic Evaluation and Strengthening of Existing Reinforced Concrete Buildings — Guidelines

IS 13920 (2016), Ductile Design and Detailing of RC Structures subject to Seismic Forces –Code of Practice