Limitations of inter-storey drift in seismic damage assessment of structures

Cao Van Vui

6 (2) 2016

Limitations of inter-storey drift in seismic damage assessment of structures

Author - Affiliation:

Cao Van Vui - Ho Chi Minh City University of Technology, Vietnam National University HCMC , Vietnam

Corresponding author: Cao Van Vui - cvvui@hcmut.edu.vn

Abstract

In this study, inelastic time history of 3-storey frames is performed for three seismic intensities and the interstorey drifts are obtained. Damage distribution in the frames based on inter-storey drifts is then evaluated in comparison with the experimental and analytical damage. Though the “inter-storey drift” parameter due to its simplicity has been widely accepted in different seismic codes around the world, it is herein found that inter-storey drift suffers a number of limitations in interpreting the damage state of structures subjected to earthquakes.

Keywords

Damage index; Inter-storey drift; Damage assessment; RC frame; Seismicload.

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