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结合建筑功能要求和场地条件,考虑高度为200.8m的海口置地广场主楼的抗震设防烈度高和基本风压大的特点,确定其结构体系为带加强层的筒中筒结构,属于高度超限的复杂高层结构。介绍了结构体系,抗震设计性能化目标,弹性分析、弹塑性分析的结果,以及地基基础的设计和为提高结构的抗震性能进行的关键构件设计。采取了结构核心筒在上部转化为壁柱式剪力墙筒体的措施,减小地震作用,从而减轻底部加强区构件强度设计的难度。
Combining the building functional requirements and site conditions, taking into account the high seismic fortification intensity and large basic wind pressure of the main building of Haikou Landmark Plaza with a height of 200.8m, the structural system is determined to be a tube-in-tube structure with a strengthening layer, which belongs to the height overrun complex High-rise structure. The structural system, the performance of earthquake-resistant design objectives, the results of elastic analysis, elasto-plastic analysis, as well as the design of foundation and the key component design to improve the seismic performance of the structure are introduced. Taking the structure of the core tube in the upper part of the conversion into a wall column wall shear wall measures to reduce the role of the earthquake, thereby reducing the strength of the bottom of the reinforced zone member design difficulty.