（北京市建筑设计研究院有限公司， 北京 100045）

［摘要］北京新机场航站楼主体结构为框架结构，屋盖及支承系统采用钢结构。中央大厅核心区南北长395m，东西方向宽518m，单层建筑面积约18万m2，尺度巨大，建筑功能和屋顶钢结构支承条件复杂，温度效应明显，因此设计采用了层间隔震技术。隔震层由铅芯橡胶隔震支座、普通橡胶隔震支座、弹性滑板支座和阻尼器组合而成。重点探讨了隔震空间钢结构构件承载力的验算方法，并与规范方法进行对比，同时研究隔震与非隔震结构的温度效应，分析结果表明隔震后结构温度效应显著降低。

［关键词］航站楼结构； 隔震设计； 隔震支座； 弹性滑板支座； 钢构件承载力； 温度效应

中图分类号：TU318文献标识码：A文章编号：1002-848X(2017)18-0006-04

Seismically isolated design on  terminal building of  Beijing New Airport

Shu Weinong, Zhu Zhongyi, Zhang Lin, Wang Zhe, Qi Yue, Qin Kai,  Liang Chenyu, Deng Xuyang

(Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:The  main structure of  terminal building of Beijing New Airport is the frame structure with roof and support system using steel structure. The core area of the central hall is 395m long from north to south, 518m wide in east-west direction and has about 180 000m2 in single-story building area. The scale of the central hall is huge, the building function is complex, the supporting conditions for roof steel structure is complicated and the temperature effect is obvious, so the design adopts interlayer seismically isolated technology. The seismically isolated layer is composed of lead-core rubber isolation bearing, ordinary rubber isolation bearing, elastic slide board bearing and damper. The checking method of the bearing capacity of the isolated steel structure member was discussed and compared with the methods in codes. The temperature effects of the isolated and non-isolated structure were also studied. The analysis results show that the structural temperature effect was significantly reduced after isolation.

Keywords:terminal building structure; seismically isolated design; seismically isolated bearing; elastic sliding board bearing; steel member bearing capacity; temperature effect

*北京市科技支撑项目（Z161100005116009)。

通讯作者：朱忠义，博士，教授级高级工程师，Email:1027311973@qq.com。