林超伟^1,2，王兴法^1,2，许波^1,2，李开伦^1,2，雷霆^1,2，熊亮^1,2

  （1 法国欧博建筑与城市规划设计公司，深圳 518053；2 深圳市博艺建筑工程设计有限公司，深圳 518053）

 

［摘要］贵阳201大厦结构高度为156m，采用支撑筒悬挂结构体系，对不同受力构件设置不同的铰模型，建立三维有限元模型。分析结果表明，6度罕遇地震作用下，结构最大层间位移角小于规范限值。构件方面，仅局部耗能梁出现剪切型屈服铰，处于IO阶段，首层裙房柱柱底出现弯曲屈服，处于B~IO阶段，主结构、环梁和悬挂桁架未出现屈服，其余构件也未出现屈服。大震下钢管柱未出现受拉。当阻尼比为0.02时，结构的层间位移角仍能满足规范要求。通过加大地震动峰值加速度的方法，验证了耗能梁的设置可起到“保险丝”的作用。

［关键词］塑性铰模型；耗能梁；抗震性能评估

中图分类号：TU311-3,TU393-2文献标识码：A文章编号：1002-848X(2012)07-0027-05

 

Lin Chaowei^1,2, Wang Xingfa^1,2, Xu Bo^1,2, Li Kailun^1,2, Lei Ting^1,2, Xiong Liang^1,2

（1 AUBE Conception Design Architecture Co., Ltd., Shenzhen 518053, China;2 Shenzhen Boyi Construction Engineering & Design Co., Ltd., Shenzhen 518053, China）

 

Abstract: The supported tube suspension structural system is adopted for Guiyang 201 Building with a height of 156m. A three-dimensional model was set up, in which different hinge models had been assigned according to different components. Analysis results show that under 6-degree rare earthquake, the maximum drift meets code requirements. As for components, only some link beams have shear hinges at the IO stage, and there is flexural yield between B and IO stage at the bottom of one podium column, and no yield occurs in the main structural members, girders, suspension trusses and other components. Under rear earthquake, concrete-filled steel tubular columns are not subjected to tension. When damping ratio comes to 0.02, the structural drift can still meet code requirements. The effect of link beams as “fuses” is verified by the way of increasing peak ground acceleration.

Keywords: plastic hinge model; link beam; seismic performance evaluation

作者简介：林超伟，硕士，一级注册结构工程师，Email：wei65125036@163.com。

 

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