摘要
某连体建筑两侧塔楼体型差异较大,为超限高层复杂连体建筑,采用框架-剪力墙+连体桁架的结构体系。针对连体桁架结构选型进行优化分析,针对连体结构整体模型,进行小震弹性分析、中震性能化验算和大震动力弹塑性分析。随后对连体结构的关键问题进行了研究,包括关键构件和节点的设计、抗连续倒塌能力以及大震下结构的变形和损伤情况。分析结果表明,超限高层复杂连体结构的结构体系合理,具有较好的整体性,关键构件和节点的设计均能达到预设的性能目标,且连体结构具有较好的抗连续倒塌能力。
The shape of towers on both sides of a connective building is quite different,it belongs to an out-of-code tall building with complex connective structure.The frame-shear wall structural system with connecting truss was adopted.The truss type selection of connective structure were analyzed and optimized.The elastic analysis of frequently-occurred earthquake,performance based seismic design of fortification earthquakes and the dynamic elastic-plastic analysis of rarely-occurred earthquake were carried out.Finally,the key points of connective structure were discussed,including design of key members and joints,the capability of the anti-progressive collapse,the deformation and damage of the structure under rarely-occurred earthquake.The analysis results show that the adopted structure system is suitable to the out-of-code tall building with complex connective structure and has well integrity,the design of key members and joints can reach the prescribed performance target and the connective structure has well anti-progressive collapse capability.
作者
黄明
王志兰
施明征
HUANG Ming;WANG Zhilan;SHI Mingzheng(Architects&Engineers Co.,Ltd.of Southeast University,Nanjing 210096,China)
出处
《建筑结构》
北大核心
2023年第2期29-34,共6页
Building Structure
关键词
超限高层建筑
复杂连体结构
连体桁架
抗连续倒塌
out-of-code high-rise building
complex connective structure
connecting truss
anti-progressive collapse
