建筑结构

2010, v.40(S2) 119-123

[打印本页] [关闭]
本期目录(Current Issue) | 过刊浏览(Past Issue) | 高级检索(Advanced Search)

论高耸结构地震动响应的时延性
Disscussion on the time delay of earthquake excitation in high-rise building

李东升;贾辉;李宏男;任亮;王国新;
Li Dongsheng,Jia Hui,Li Hongnan,Ren Liang,Wang Guoxin(School of Hydraulic Engineering,Dalian University of Technology,Dalian 116024,China)

摘要(Abstract):

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)中规定的层间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。
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.

关键词(KeyWords): 高层建筑结构;结构动力学;结构波动力学;时间延迟;层间位移
high-rise building;structural dynamics;wave propagation in structures;time delay;floor displacement;

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50408031,50438010,50708013);; 工业装备结构分析国家重点实验室开放基金项目(GZ0906)

作者(Author): 李东升;贾辉;李宏男;任亮;王国新;
Li Dongsheng,Jia Hui,Li Hongnan,Ren Liang,Wang Guoxin(School of Hydraulic Engineering,Dalian University of Technology,Dalian 116024,China)

Email:

DOI: 10.19701/j.jzjg.2010.s2.035

参考文献(References):

扩展功能
本文信息
服务与反馈
本文关键词相关文章
本文作者相关文章
中国知网
分享