摘要
为明确某超高层不规则钢框架-核心筒混合结构的抗震性能,文中通过结构分析软件,对整体结构进行多遇地震作用下弹性分析及罕遇地震作用下动力弹塑性时程分析,同时对不规则项及关键构件在地震作用下的受力性能进行了局部分析并给出加强措施。结果表明此结构在地震作用下整体结构耗能机制明确,不规则项加强措施有效,关键构件设计合理,为不规则超限工程结构设计提供依据。
To assess the seismic performance of a super-tall irregular steel-frame-core-tube hybrid structure,this study uses structural analysis software to perform elastic analysis under frequent seismic actions and dynamic elasto-plastic time-history analysis under rare seismic actions.Localized analysis is also conducted on irregularities and critical components under seismic loads,along with proposed reinforcement measures.The results indicate that the overall energy dissipation mechanism of the structure during earthquakes is well-defined,the reinforcement measures for irregularities are effective,and the design of critical components is reasonable.This study provides a basis for designing irregular super-tall engineering structures.
作者
徐晨
XU Chen(Architectural Design&Research Institute of Tongji University,Shanghai 200092,China)
出处
《低温建筑技术》
2024年第9期152-154,158,共4页
Low Temperature Architecture Technology
关键词
混合结构
钢框架-核心筒
弹性分析
弹塑性时程分析
不规则超限
hybrid structure
steel frame-core tube
elastic analysis
dynamic elastoplastic time history analysis
irregular out-of-bounds
