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论文类型：期刊论文

发表时间：2015-03-01

发表刊物：INTERNATIONAL JOURNAL OF STEEL STRUCTURES

收录刊物：SCIE、EI、Scopus

卷号：15

期号：1

页面范围：153-163

ISSN号：1598-2351

关键字：power substation; seismic excitation; shake table test; finite element model

摘要：In this study, the Highway N Substation in Missouri was studied with finite element method for its vulnerability under seismic loading. The component of the substation system was modeled with due considerations of mass, stiffness and geometries. Full-scale shake table experiments were carried out on three electric switches to partially validate the finite element model (FEM). After a systematical modal analysis based on the FEM, response spectrum analyses were performed to characterize the dynamic behavior of 'rigid' buses and switches of the structure. In time-history analysis, two methods were employed to generate the seismic motions: 1) site-specific synthetic ground motion and 2) spectrum compatible ground motion. The results from both ground motions were analyzed and the magnitude and location of the maximum moments in each case were identified. The effect of slip joints on switches was examined and the maximum relative displacement under the seismic loads was identified.