（1 中南建筑设计院股份有限公司， 武汉 430070； 2 东南大学土木工程学院， 南京 211189）

［摘要］对于层高较高、柱跨较大的超长结构，创新性地提出采用设置屈曲约束支撑的框架结构体系，并将该结构体系应用在实际工程——中国（淮安）国际食品博览中心（B区）中。采用YJK，ETABS软件对结构在多遇地震、设防地震、罕遇地震作用下的抗震性能进行分析，同时采用ABAQUS软件对典型屈曲约束支撑连接节点进行有限元分析。结果表明，对展览建筑，在框架结构中设置屈曲约束支撑能有效增强结构的抗侧、抗扭刚度，并能同时降低温度作用对结构的不利影响，另外，由于屈曲约束支撑的消能减震功能，使得结构在中震、大震中具有更好的抗震性能。

［关键词］中国（淮安）国际食品博览中心； 展览建筑； 屈曲约束支撑； 框架结构； 抗震性能

中图分类号：TU398-7文献标识码：A文章编号：1002-848X(2020)16-0077-05

Application and seismic performance analysis of buckling restrained braces in exhibition building

FAN Huabing1, ZHANG Shuqiang1, LI Hongsheng1, WU Yifeng1, CHEN Guoliang2

(1 CentralSouth Architectural Design Institute Co., Ltd., Wuhan 430070, China;2 School of Civil Engineering, Southeast University, Nanjing 211189, China)

Abstract:For the super long structure with high story height and large column span, the frame structural system with buckling restrained braces was innovatively proposed and applied to the actual project of China (Huai′an) International Food Expo Center (Area B). YJK and ETABS softwares were used to analyze the seismic performance of the structure under frequent earthquake, fortification earthquake and rare earthquake. At the same time, ABAQUS software was used to analyze the typical connection joints for buckling restrained braces. The results show that, for exhibition buildings, setting buckling restrained braces in the frame structure can effectively enhance the lateral and torsional stiffness of the structure, and can reduce the adverse effect of temperature on the structure at the same time. In addition, due to the energy dissipation function of buckling restrained braces, the structure has better seismic performance under fortification and rare earthquakes.

Keywords:China (Huai′an) International Food Expo Center; exhibition building; buckling restrained brace; frame structure; seismic performance

作者简介：范华冰，硕士，高级工程师，一级注册结构工程师，Email：castor_fan@foxmail.com。