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通过室内大型模型试验,对圆形框筒高层结构大底盘框筏基础与地基的共同作用问题进行了试验研究,得出基底反力和基础变形的分布规律及主楼竖向荷载向外框柱转移的特征。大底盘框筏基础的设计,应考虑共同作用引起的主楼荷载向外框柱转移的现象,满足核心筒、主楼整体及外框柱的抗冲切承载力要求;主楼与裙房交界处的基础、基础四角及裙房顶层是这类结构的薄弱环节,需加强。
Through indoor large-scale model tests, the interaction between the frame and the foundation of the large-scale circular chassis with high-rise structure is studied. The distribution of the foundation reaction force and the foundation deformation and the transfer of the vertical load of the main building to the outer frame are obtained Characteristics. Large chassis frame raft foundation design should take into account the common cause of the main building load transfer to the outer frame of the phenomenon to meet the core tube, the main building and the outer frame of the punching shear capacity requirements; the main building and podium at the junction of the foundation The corners of the foundation and the top of the podium are the weak links of such structures and need to be strengthened.