屈曲约束支撑在高层建筑结构加强层中的工程应用
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杨晓明,徐和财,郑玮,鲍兰军(浙江省工业设计研究院, 杭州 310003)[摘要]将屈曲约束支撑应用于带加强层的高层建筑结构中,分析了结构在大震作用下的弹塑性响应及构件破坏模式,得出了如下结论:在高层建筑加强层中采用屈曲约束支撑作为其斜腹杆构件,有利于防止加强层斜腹杆受压屈曲破坏并保障核心筒与外框架的协同工作,是实现有限刚度加强层与延性破坏机制的一种有效途径。[关键词]屈曲约束支撑; 加强层; 伸臂桁架中图分类号:TU398.7 文献标识码:A 文章编号:1002-848X(2013)14-0062-05Application of buckling restrained braces in a high-rise structure with strengthened storyYang Xiaoming, Xu Hecai, Zheng Wei, Bao Lanjun(Zhejiang Industry Design and Research Institute, Hangzhou 310003, China)Abstract: With application of buckling restrained braces in a high-rise structure with strengthened story, the elastic-plastic responses and damage modes of the structure under rare earthquake were summarized. Some beneficial conclusions were proposed: buckling restrained brace used as the diagonal brace members in strengthened story of high-rise structurs can prevent buckling failure due to compression and ensure the collaborative work between core wall and frame; it is also on effective way to limit the stiffness of strengthened story and realize the ductile failure mechanism.Keywords: buckling restrained brace; strengthened story; outrigger作者简介:杨晓明,学士,高级工程师,院主任工程师,院技术委员会委员,Email:yxm21@163.com。参考文献[1]GB 50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.[2]徐培福,傅学怡,王翠坤,等. 复杂高层建筑结构设计[M].北京:中国建筑工业出版社,2005.[3]丁鲲.带耗能减震层的框架核心筒结构抗震性能分析[D].广州:广州大学,2007.[4]丁鲲,周云.框架核心筒结构耗能减震层的减震效果分析[J].工程抗震与加固改造,2007,29(3):35-40.[5]徐自国,肖从真,任重翠.结构弹塑性分析对我国高层建筑抗震设计的启示[J].建筑结构,2011,41(11):41-46.[6]刘涛,李爱群.带加强层高层建筑地震作用分析与减震研究[J].振动与冲击,2012,31(11):16-21.[7]武莲霞,余志伟,孙飞飞. 屈曲约束支撑在带伸臂高层建筑中的应用[J].建筑结构,2011,41(S1):120-124.