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（北京市建筑設(shè)計研究院有限公司， 北京 100045）
［摘要］北京新機場航站樓主體結(jié)構(gòu)為框架結(jié)構(gòu)，屋蓋及支承系統(tǒng)采用鋼結(jié)構(gòu)。中央大廳核心區(qū)南北長395m，東西方向?qū)?18m，單層建筑面積約18萬m2，尺度巨大，建筑功能和屋頂鋼結(jié)構(gòu)支承條件復(fù)雜，溫度效應(yīng)明顯，因此設(shè)計采用了層間隔震技術(shù)。隔震層由鉛芯橡膠隔震支座、普通橡膠隔震支座、彈性滑板支座和阻尼器組合而成。重點探討了隔震空間鋼結(jié)構(gòu)構(gòu)件承載力的驗算方法，并與規(guī)范方法進行對比，同時研究隔震與非隔震結(jié)構(gòu)的溫度效應(yīng)，分析結(jié)果表明隔震后結(jié)構(gòu)溫度效應(yīng)顯著降低。
［關(guān)鍵詞］航站樓結(jié)構(gòu)； 隔震設(shè)計； 隔震支座； 彈性滑板支座； 鋼構(gòu)件承載力； 溫度效應(yīng)
中圖分類號：TU318文獻標識碼：A文章編號：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
*北京市科技支撐項目（Z161100005116009)。
通訊作者：朱忠義，博士，教授級高級工程師，Email:1027311973@qq.com。
