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某超高层建筑高243 m,主体结构采用了框架-核心筒结构体系,基础选用桩筏基础形式。该工程主楼、裙房、纯地下室地下连为一体,形成大底盘主、裙地下连体建筑基础。为有效控制差异沉降,采用了变刚度调平设计、灌注桩后注浆和设置后浇带等有效措施。在简要介绍该工程结构特点的基础上,系统地阐述该工程基于结构布置、地质情况等因素综合考虑进行的基础设计,重点介绍变刚度调平设计的方法。
A high-rise building 243 m high, the main structure using a framework - the core tube structure system, the basis of choice piled raft foundation form. The main building of the project, podium, underground basement as a whole, forming large chassis, skirt Siamese building base. In order to effectively control the differential settlement, effective measures such as variable stiffness leveling design, post grouting piles and post-pouring zone are adopted. Based on the brief introduction of the structural characteristics of the project, the basic design of the project based on structural layout, geological conditions and other factors is systematically expounded. The method of variable stiffness leveling design is emphatically introduced.