Effect of seismic torsional component on nonlinear behavior of reinforced concrete multi-story buildings

Abderrahmane Ouazir, Asma Hadjadj, Mansour Ouazir, Mustapha Boukendakji and Hatem Gasmi

Abstract

This paper investigates the influence of the torsional component of earthquake on the nonlinear structural behavior of reinforced concrete (RC) buildings. It also estimates the equivalent additional eccentricity that results from this component. For this purpose, we generate torsional accelerograms from translational ones and conduct nonlinear seismic analysis on both regular and irregular structures. The results show that the torsional component has a significant impact on the structural response, especially for irregular structures. The equivalent additional eccentricity of the cases studied was higher than 5% which is the value of accidental eccentricity suggested by many seismic codes.

Key Words

accidental eccentricity; multi-story buildings; nonlinear dynamic analysis; seismic response; torsional ground motion

Address

Abderrahmane Ouazir: Department of Civil Engineering, College of Engineering, University of Ha'il, Hail, Saudi Arabia Asma Hadjadj: Department of Interior Design Engineering, College of Engineering, University of Ha'il, Hail, Saudi Arabia Mansour Ouazir: Department of Civil Engineering, El.Wanchrissi University, Tissemsilt, Algeria Mustapha Boukendakji: Department of Civil Engineering, College of Engineering, University of Ha'il, Hail, Saudi Arabia Hatem Gasmi: Department of Civil Engineering, College of Engineering, University of Ha'il, Hail, Saudi Arabia; LR14ES03 Laboratoire d

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