摘要
武汉某超限多塔楼连体结构由6栋框架⁃核心筒高层塔楼及连接于各塔楼间不同高度处的6个钢结构连体组成,高层塔楼结构高度分别为139.5m和108.0m,钢桁架连体跨度分别为38.3m和32.7m,属于存在多项不规则的超限高位连体结构。针对此类复杂连体结构,为考察其抗震性能,提出了明确的分析思路,详细介绍了该项目结构方案、抗震性能设计、风洞试验及针对超限采取的加强措施;采用YJK和MIDAS Building两款软件对结构进行小震作用下的弹性整体计算分析,并进行弹性时程分析补充计算;采用SAUSAGE软件进行了罕遇地震动力弹塑性分析。结果表明,结构整体指标满足规范要求,能够达到预设的抗震性能目标。
An out⁃of⁃code multi⁃tower connected structure in Wuhan is composed of six frame⁃core tube high⁃rise towers and six steel structures connected at different heights between each tower.The height of the high⁃rise tower structure is 139.5m and 108.0m respectively,and the span of the steel truss connected is 38.3m and 32.7m respectively.It belongs to the out⁃of⁃code high⁃rise connected structure with many irregularities.In view of this kind of complex connected structure,in order to investigate its seismic performance,a clear analysis idea was put forward,and the structural scheme,seismic performance design,wind tunnel test and strengthening measures for overrun were introduced in detail.YJK and MIDAS Building software were used to calculate and analyze the overall elasticity of the structure under the action of frequent earthquakes,and the elastic time history analysis was supplemented.The dynamic elastic⁃plastic analysis of rare earthquake was carried out by SAUSAGE software.The results show that the overall index of the structure meets the requirements of the specification and can achieve the preset seismic performance target.
作者
张艳军
邢沛霖
刘钝
ZHANG Yanjun;XING Peilin;LIU Dun(CITIC General Institute of Architectural Design and Research Co.,Ltd.,Wuhan 430014,China)
出处
《建筑结构》
北大核心
2024年第13期63-70,共8页
Building Structure
关键词
超限结构
连体结构
风洞试验
抗震性能设计
钢桁架连体结构
out⁃of⁃code structure
connected structure
wind tunnel test
seismic performance design
steel truss connected structure
