摘要
佛山西站为大空间、大跨度结构,为研究佛山西站站房在偶然荷载作用下的防连续倒塌性能,采用拆除构件法,利用SATWE、SAP2000和ABAQUS多种软件,选取不同失效工况分别进行弹性和非线性分析,研究剩余结构的节点位移、内力及内力重分布过程。结果表明,对同一个结构单元,拆除角柱、边柱的破坏危害性更大,设计中应对角柱、边柱及相连结构、单跨结构进行加强设计。佛山西站结构具有足够的冗余度,在局部偶然荷载作用下,出现局部结构轻微破坏,不会发生连续倒塌。
Foshan West Railway Station is large-space and large-span structure.In order to study the anti-collapse performance of the Foshan West Railway Station building under accidental loads,the alternative path method was adopted to carry out elastic and nonlinear analysis under different failure conditions by using various softwares such as SATWE,SAP2000 and ABAQUS,the joint displacement,internal force and internal force redistribution process of residual structure were studied.The results show that for the same structure unit,damage is more serious after the corner column and side column are removed,hence the corner column,side column,connected structure and single span structure should be strengthened in design.The Foshan West Railway Station has sufficient redundancy,and when encountering local accidental loads,the local structure will be slightly damaged,and the continuous collapse will not happen.
作者
倪勇
NI Yong(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China)
出处
《建筑结构》
北大核心
2023年第15期47-52,共6页
Building Structure
关键词
佛山西站
防连续倒塌
静力拆除构件法
动力弹塑性拆除构件法
Foshan West Railway Station
anti-collapse
static alternative path method
dynamic elastoplastic alternative path method
