Effects of Rupture Forward Directivity and Fling Step of Near-Fault Ground Motions on Seismic Performance of
详细信息
- 责任者：Yang Dixiong (State Key Laboratory for Structural Analysis of Industrial Equipment ; Department of Engineering Mechanics ; Dalian University of Technology ; Dalian 116023 ; China) ; Zhao Yan
- 刊名：Acta Seismologica Sinica
- 出版年：2010
- 卷期：32(5)
- 关键词：地震动 ; ground motion ; 抗震设计 ; aseismic design ; 台湾 ; Taiwan Province ; 美国 ; United States
- 页码：p.579-587
- 图表：illus., 2 tables, 17 refs.
- 分类号：0500
- issnNo：ISSN0253-3782
- isbnNo：CN11-2021/P
摘要
///Near-fault ground motion records from two different earthquakes, the 21 September 1999 Jiji (Chi-Chi), Taiwan, earthquake and 17 January 1994 Northridge earthquake, are selected as seismic input,and the influence of velocity pulse of near-fault ground motions with rupture forward directivity and fling step on the seismic performance of single degree of freedom (SDOF) system and base-isolated buildings with lead rubber bearings are examined. The response spectrum analysis illustrates that the effects of rupture forward directivity and fling step of ground motions on the seismic responses of engineering structure are period-dependent. In the range of short and medium period, the spectral acceleration of ground motions with forward directivity is larger than that with fling step. In the long period range, the spectral acceleration of motions with fling step is generally larger than that with forward directivity.