Applications of the wavelet transform in the generation and analysis of spectrum-compatible records

被引：21

作者：

Suarez, Luis E. ^{[1
]}

Montejo, Luis A.

机构：

[1] Univ Puerto Rico, Dept Civil Engn & Surveying, Mayaguez, PR 00681 USA

[2] N Carolina State Univ, Dept Civil Construct & Environm Engn, Raleigh, NC 27695 USA

来源：

STRUCTURAL ENGINEERING AND MECHANICS | 2007年 / 27卷 / 02期

关键词：

spectrum compatible accelerograms; wavelet transform; baseline correction; input energy spectrum; strong motion duration;

D O I：

10.12989/sem.2007.27.2.173

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A wavelet-based procedure to generate artificial accelerograms compatible with a prescribed seismic design spectrum is described. A procedure to perform a baseline correction of the compatible accelerograms is also described. To examine how the frequency content of the modified records evolves with time, they are analyzed in the time and frequency using the wavelet transform. The changes in the strong motion duration and input energy spectrum are also investigated. An alternative way to match the design spectrum, termed the "two-band matching procedure", is proposed with the objective of preserving the non-stationary characteristics of the original record in the modified accelerogram.

引用

页码：173 / 197

页数：25