Author : Bilal Ahmad and Imtiyaz Akbar Najar

This paper presents the application of Response Spectrum Method in the seismic analysis of structures employing time history record. In-built mathematical capabilities of MATLAB are utilized to solve the ordinary differential equation (ODE45) at 2 % damping ratio. Data regarding the time histories of EL Centro and Japan earth quakes is obtained from the websites of various observatories. A MATLAB code is developed to read the time versus acceleration data and solve the ODE45 and give various results like accelogram, displacement (SDOF), pseudo velocity, pseudo acceleration.

Keywords: Seismic analysis, time history, acceleration, ordinary differential equation

Article published in International Journal of Current Engineering and Technology, Vol.6, No.5 (Oct-2016)