Performancebased Seismic Design of Shanghai Tower Under Rare Earthquake

Abstract:

Based on CECS160 and ASCE41,performance design levels and objects of Shanghai Tower are proposed.A computational strategy for dynamic analysis of seismic behavior of the building is put forward,in which the nonlinear stressstrain relationship of structural materials is directly adopted rather than concentrated plastic hinge.The corresponding performancebased seismic design objects of primary members are determined.The suitable finite elements and a reliable nonlinear dynamics analysis technique are selected to accomplish the performance evaluation of Shanghai Tower.Valuable suggestions about the performance seismic design are proposed for the structure.The results provide useful background materials for further study of the performancebased seismic design of similar buildings.

Key words:superhighrise building; performancebased seismic design; nonlinear dynamic analysis method