冯铭，杨聪武,曹志丹，谭咏梅

（昆钢集团设计院有限公司， 安宁 650302）

 

［摘要］某高层钢结构住宅楼高48.6m，结构体系采用钢框架-支撑结构，主要抗侧力构件采用屈曲约束支撑。通过多种结构形式的对比分析阐述了框架-屈曲约束支撑结构体系地震作用效应小、塑性耗能能力优等结构特征。阐述了屈曲约束支撑设计控制内力的确定和支撑杆件与框架梁、柱连接节点设计等关键技术。通过多遇地震作用下结构整体计算分析、中震弹性分析和不考虑屈曲约束支撑作用的纯框架结构抗震验算，得出框架-屈曲约束支撑结构体系抗震性能优越、技术经济指标合理的结论。

［关键词］钢框架-支撑结构；高层钢结构住宅；屈曲约束支撑；塑性变形

中图分类号：TU318        文献标识码：A        文章编号：1002-848X(2013)04-0066-05

 

Feng Ming, Yang Congwu, Cao Zhidan, Tan Yongmei

（Kunming Iron & Steel Group Design Institute Co., Ltd., Anning 650302, China）

 

Abstract: A high-rise steel structure residence is 48.6 meters high, structural system of the residence is the steel braced frame structure, and its main anti-lateral force components are buckling restrained braces. Through analysis of a variety of structural forms, structural features of the framework buckling restrained brace structure system were elaborated, such as small seismic action effect and superior plastic energy dissipation capacity. Key technologies were introduced, including determination of design control internal force for the buckling restrained brace and design of connection nodes among the support rods, frame beams, and columns. Through the overall structure calculation under frequent earthquake, structural seismic elastic analysis under fortification intensity, and pure frame structure seismic calculation without regarding the effect of buckling restrained braces, it is concluded that seismic performance of the framework-buckling restrained brace structure is good and its technical and economic indicators are reasonable.

Keywords: steel braced frame structure; highrise steel residence; buckling restrained brace; plastic deformation

作者简介：冯铭，院长，工程师，一级注册建筑师，Email:kgjtycw@126.com。

 

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［3］CECS 261:2009钢结构住宅设计规范［S］.北京：中国建筑工业出版社，2009.