丽泽SOHO双塔复杂连体超高层施工过程中结构变形研究

RESEARCH ON STRUCTURAL DEFORMATION OCCURRED IN THE CONSTRUCTION PROCESS OF LEEZA SOHO SUPER HIGH-RISE BUILDING WITH COMPLICATED CONNECTED TWIN-TOWER

以丽泽SOHO为工程背景,对结构施工过程进行模拟,同时考虑施工过程中结构与材料时变特性。对丽泽SOHO施工过程中的结构变形状况进行综合分析,重点研究了内筒外框的竖向变形、竖向变形差、扭转变形、结构整体变形及结构变形对关键构件内力的影响,并将结构变形分析结果与实际监测结果进行对比。最后,分析总结了复杂超高层施工阶段结构的变形规律,可为施工过程中结构变形控制提供依据。

Taking the LEEZA SOHO as an example,the construction process simulation was carried out considering the time-varying characteristics of the structure and materials during construction.The structural deformation of LEEZA SOHO construction process was comprehensively analyzed,and the paper focused on the effects of vertical deformation,vertical deformation difference,torsional deformation,overall structural deformation and structural deformation of the inner-tube outer-frame structure on the internal forces of key members.The results of structural deformation finite element analysis were compared with the actual monitoring results.Finally,the deformation law of the structure in the construction stage was summarized.The obtained numerical results could provide guidelines for the control of structural deformation during the construction process.