李东升，贾  辉，李宏男，任  亮，王国新
    (大连理工大学水利工程学院，大连116024)

[摘要] 从结构波动力学的角度分析了地震波在结构中传播的时间延迟性特点，并利用此时延特点修正了传统结构动力学方程中隐含的时间一致性假设。进而给出了简单、实用的计算高层结构考虑地震动输入时间延迟的方法。通过对某高层按《建筑抗震设计规范》(GB50011-2001)和《高层建筑混凝土结构设计规程》(JGJ3-2002)中规定的层问位移和顶点最大位移的计算表明，原有的计算方法数值偏小而不安全。
[关键词] 高层建筑结构；结构动力学；结构波动力学；时问延迟；层间位移

    Disscussion on the time delay of earthquake excitation in high-rise building
    Li Dongsheng, Jia Hui, Li Hongnan, Ren Liang, Wang Guoxin
    (School of Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China)

Abstract: The nature of time delay of earthquake wave propagation was analyzed from the perspective of wave propagation, and then the time delay was used to modify the convention structural dynamics equation with the assumption of implicit simultaneity. Furthermore,a simple and practical method was derived to compute structural responses considering the delay of wave propagation in the structure. Through the computation of floor displacement and top floor maximum displacement according to current standards on seismic design of buildings, it was shown that the conventional method neglecting the effects of the time delay of wave propagation in structures would give comparatively smaller and unsafe values.
Keywords: high-rise building; structural dynamics; wave propagation in structures; time delay; floor displacement;