Seismic Design and Performance of High-Rise Steel Buildings under Various International Design Codes

Abstract

The increase in the number of seismic events and their devastations in the recent past has assisted in many developments in seismic codes of various international standards. Codes adopt conventional elastic methods in the design of structures to estimate the strength and deformation demand employing seismic design factors to represent the nonlinear behavior of the structure. Four typical high-rise steel buildings of 8, 12, 16 and 20 stories are designed and detailed using various seismic codes. Seismic response of the reference buildings is assessed with detailed fiber-based models using inelastic pushover and incremental dynamic analyses subject to 20 strong seismic records. The proposed study provides comparisons between different seismic design codes for the range of the reference buildings at different performance levels. This study may help the designers in optimizing their design in the seismic regions and provide an insight to assess the seismic performance and predict the behavior at different performance levels.