深圳招商前海环贸中心T1,T2塔楼结构设计

Structure Design of Tower Building Tl,T2 of Cental Trade Center in Qianhai,Shenzhen

环贸中心项目位于深圳市前海自贸区,其中T1、T2塔楼结构高度分别为249.5m和239.0m,采用了框架-核心筒结构体系,在上部局部收进为框架-剪力墙结构。结构存在高度超高、立面收进、扭转不规则、连体、构件间断、承载力突变和斜墙转换等超限内容,分别采用YJK和ETABS软件对结构进行多遇地震下和设防地震下的可行性分析、楼板应力分析、悬挑及连体结构分析、舒适度分析和跨层柱屈曲分析,采用SAUSAGE软件进行了结构动力弹塑性分析、弹塑性楼板应力分析,采用ABAQUS软件进行转换结构、钢梁开洞、复杂节点分析等结构专项研究。通过对计算结果的分析比较,证明结构设计成功解决了结构超限问题,结构设计是安全可靠的,可为相关工程提供参考。

The Central Trade Center project is located in Qianhai Free Trade Zone,Shenzhen.The height of T1 and T2 tower building is 249.5m and 239.0m,respectively.The frame-core tube structure system is adopted,and the upper part is partially retracted into a frame-shear wall structure.The structure has over-limit content such as super-high height,facade retracting,irregular torsion,conjoined parts,discontinuous components,sudden changes in bearing capacity and inclined wall conversion.The YJK and ETABS software are used to perform feasibility analysis,floor stress analysis,cantilever and conjoined structure analysis,comfort analysis and cross-storey column buckling analysis on the structure under frequent earthquakes and fortified earthquakes.Using SAUSAGE software to analyze the structural dynamic elastoplastic analysis,elastoplastic floor stress analysis,using ABAQUS software to transform the structure,steel beam opening,complex joint analysis and other structural special research.Through the analysis and comparison of the calculation results,it is proved that the structural design has successfully solved the problem of structural over-limit,and the structural design is safe and reliable,which can provide reference for related projects.