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Indexed by:会议论文

Date of Publication:2010-09-06

Included Journals:EI、Scopus

Page Number:151-154

Abstract:The nature of time delay effects of structural responses is treated in the paper from the perspective of wave propagation, and then the time delay is used to modify governing equation of motion in structural dynamics which takes the assumption of implicit simultaneity of structural responses at various heights. Furthermore, a simple and practical method is derived to compute structural responses considering the lag effects. Through the computation of floor displacement and top floor maximum displacement according to current China  s standards on seismic design of buildings, it was shown that conventional method neglecting the effects of the time delay of wave propagation in structureswould give comparatively smaller and unsafe values. In a summary, the time delay effect in structural responses is considered and incorporated into conventional equation of structural dynamics, which provides a practical solution to current practice on analyzing structural responses for high-rise buildings subjected to earthquake excitations. ? 2010 Taylor & Francis Group, London.