广东某超限高层塔楼结构设计

Structural design of an out-of-code high-rise tower in Guangdong

塔楼主体结构高度249.7m,采用框架-剪力墙结构体系,属于超B级高度的超限高层建筑。采用了基于性能的抗震设计方法进行设计,抗震性能目标为C级。采用了YJK和ETABS两种软件进行了结构整体分析,同时采用了SAUSAGE进行了结构动力弹塑性分析,计算结果表明结构在罕遇地震下,关键构件、普通竖向构件、耗能构件及重要楼板的塑性损伤情况均满足预定的性能目标。同时,针对住宅舒适度不足的情况,通过设置TSD阻尼器的方式有效控制顶点最大加速度。

The frame-shear wall structure system tower is 249.7m,it’s an out-of-code high-rise building with a exceeding B-level height.The performance-based seismic design method was adopted for the design,and the seismic performance target was Class C.YJK and ETABS software were used for the overall analysis of the structure,and SAUSAGE was adopted for dynamic elastic-plastic analysis.The results show that the plastic damage of key components,common vertical components,energy dissipated components and important floor slabs all meet the predetermined performance objectives under rare earthquakes.The maximum vertex acceleration is effectively controlled by setting TSD damper in order to solve the problem of inadequate residential comfort.