谢异同，  王  强，  任  键
    （西安建筑科技大学土木学院，西安 710055）

[摘要] 应用离散小波变换方法将地震动分解为频带互不重叠的相邻小波分量，计算在一致输入及考虑行波效应的非一致激励作用下，大跨结构的位移反应规律。比较两种激励的计算结果，考察行波效应对结构位移。
[关键词] 小波分解；行波效应；非一致激励；一致输入
中图分类号：TU311.3  文献标识码：A  文章编号：1002-848X( 2011) Sl-0220-04

Displacement response analysis of long-span structures based on the wavelet method
    Xie Yitong, Wang Qiang, Ren Jian
    ( Civil Engineering of Xian University of Technology and Architecture,  Xian 710055,  China)

Abstract: The recorded ground motion was decomposed into a finite number of time series with energy in nonoverlapping frequency bands by discrete wavelet analysis method to explore the displacement response laws of span structures under ground motion. In this process, wave passage effect included in uniform excitation and multi-support excitation was considered. The displacement laws were obtained to multi-support excitation, and the levels for traveling wave excitation and uniform excitation were also calculated respectively, so that the comparison of the displacement response laws in the building to two types of excitations can be made.
Keywords: wavelet; wave passage effect; multi-support excitation; uniform excitation