某高层建筑结构罕遇地震性能分析

Analysis of Seismic Performance of a High-rise Building Structure

某建筑高388 m,采用框架-钢筋混凝土(内置钢板)核心筒结构体系,属于结构不规则的高度超限结构。采用YJK、SAUSAGE进行动力弹塑性时程分析,并针对关键节点采用ABAQUS软件进行节点弹塑性分析;结果标明,该结构在罕遇地震作用下,结构的各项指标表现良好,结构能满足规范的相关要求,且结构的耗能机制合理,满足“强柱弱梁”的抗震设计概念,结构可行且安全。

The building height is 388 m,and the frame-reinforced concrete(built-in steel plate)core tube structure system is adopted,which belongs to the height over-limit structure with irregular structure.YJK and SAUSAGE were used for dynamic elastoplastic time history analysis,and ABAQUS software was used for nodal elastoplastic analysis for key nodes.The results show that the structure performs well under the action of rare earthquakes,the structure can meet the relevant requirements of the specification,and the energy consumption mechanism of the structure is reasonable,which meets the seismic design concept of"strong column and weak beam",and the structure is feasible and safe.