Dynamic analysis of subway station s
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Dynamic analysis of subway station subjected to internal blast loading
Abstract:The study was motivated by the fact that explosion inside the subway structure may not only cause direct life loss, but also damage the subway structure and lead to further loss of lives and properties. The propagation law of explosion wave in the subway station was analyzed and a simplified model of overpressure in the subway station was also proposed. Whereafter, the improved dynamic cam-clay model of soil and the concrete damaged plasticity constitutive model were used for the dynamic analysis of the subway station. Meanwhile, the influences of soil stiffness and burial depth on the dynamic response of the subway station were looked into. The results show that the multi-peak overpressure in the subway station does not appear, and large stresses concentrate on the central column and the floor slab of the subway station, so some special reinforcement measures should be taken in these parts. The effect of soil stiffness and burial depth on the stress of the central column is little; however, the effect on the stress of the station side wall is relatively obvious. 作者: Author: HE Wei[1] CHEN Jian-yun[2] GUO Jing[1] 作者单位: School of Civil and Hydraulic Engineering,Dalian University of Technology,Dalian 116023,ChinaSchool of Civil and Hydraulic Engineering,Dalian University of Technology,Dalian 116023,China;State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116023,China 期 刊: 中南大学学报(英文版) EISCI Journal: JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY(ENGLISH EDITION) 年,卷(期): 2011, 18(3) 分类号: U231 Keywords: subway station internal explosion nonlinear dynamic analysis influence factor 机标分类号: U23 TP1 机标关键词: blast subway station dynamic analysis dynamic response structure constitutive model central stress influences depth loss improved special results however little study wave slab fact 基金项目: The National Natural Science Foundation of China【Dynamic analysis of subway station s】相关文章:
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