珠西金融中心结构设计中的关键技术研究

Research on key technology of structural design of Zhuxi Financial Center

珠西金融中心1#综合楼结构总高度为336m,地上70层,地下3层,因核心筒截面尺寸限制,建筑单向体型收进较大,此外还存在地基承载力偏低以及沿海风压较大等设计难点,采用了一种新的带加强层的钢管柱框架-排钢管钢板混凝土剪力墙核心筒结构体系。重点介绍了新型的排钢管钢板混凝土剪力墙截面构造形式及与墙、梁、板的连接节点,超高层基础设计及沉降控制,环形加强带设计,关键节点(钢筋混凝土梁-钢管柱连接节点以及分叉柱节点)的设计。计算结果表明,关键节点符合规范及安全性验算的要求。

The 1#comprehensive building of Zhuxi Financial Center has a total height of 336 meters,70 floors above ground and 3 floors underground.Due to the limitation of the cross-sectional size of the core walls,the building has a large one-way body shape,In addition,there are design difficulties such as low foundation bearing capacity and high coastal wind pressure.A new core tube structure system with strengthened story,the steel tube column frame-row steel tube steel plate concrete shear wall was adopted.The new row steel tube steel plate concrete shear wall construction shape and the connection joints with wall,beam and slab,super high-rise foundation design and settlement control,annular strengthened belt design,and the design of key joints(reinforced concrete beam-steel tube column connection joint and bifurcation column joint)were mainly introduced.The calculation results show that the key nodes meet the requirements of the specification and safety check calculations.