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（北京市建筑設(shè)計(jì)研究院有限公司， 北京 100045）
［摘要］?？诿捞m國際機(jī)場T2航站樓場地設(shè)防烈度為8度（0-30g），屬于高烈度區(qū)，同時(shí)建筑功能決定其屬于人流密集的大型公共建筑，抗震設(shè)防類別為重點(diǎn)設(shè)防類。項(xiàng)目首次采用跨層設(shè)置隔震層的隔震方案，隔震層采用普通橡膠支座、鉛芯橡膠支座及彈性滑板支座組合,通過隔震相關(guān)的計(jì)算分析及驗(yàn)算，設(shè)防地震作用時(shí)隔震后上部結(jié)構(gòu)樓層剪力及樓層加速度降低至非隔震時(shí)的35%以下，達(dá)到隔震層上部的混凝土框架及屋蓋鋼結(jié)構(gòu)支承結(jié)構(gòu)滿足降低設(shè)防烈度一度設(shè)計(jì)的相關(guān)要求。同時(shí)對跨層位置的豎向構(gòu)件進(jìn)行罕遇地震的變形及承載力驗(yàn)算，確保豎向構(gòu)件滿足抗剪彈性、抗彎不屈服的承載力要求，確?？鐚痈粽鸬母粽鹦Ч跋嚓P(guān)構(gòu)件的性能滿足設(shè)計(jì)預(yù)期。
［關(guān)鍵詞］跨層隔震； 減震系數(shù)； 概念設(shè)計(jì)； 彈性滑板支座
中圖分類號：TU393-3文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2018)20-0079-04
Study on cross-layer isolation design on T2 terminal of Haikou Meilan International Airport
Bu Longgui, Wu Zhongqun, Shu Weinong, Zhu Zhongyi, Liu Fei
(Beijing Institute of Architectural Design, Beijing 100045, China)
Abstract:The fortification intensity of T2 terminal of Haikou Meilan International Airport is 8 degree(0.3g), which belongs to the high intensity area. At the same time, the building function determines that it is a large public building with dense crowds. The seismic fortification category is the key fortification class. The project adopts the cross-layer isolation for the first time. Common rubber bearings, lead rubber bearings and elastic slide bearing are used in the isolation layer. Through the isolation related calculation and analysis, the shear strength and floor acceleration of upper structure after isolation under inter-mediate earthquake are reduced to less than 35% of those without isolation. The upper concrete frame and roof steel structure supports meet the design requirements for reducing the fortification intensity design. The calculation of the deformation and bearing capacity of the vertical components at the cross-layer position under the rare earthquake is carried out to ensure that the vertical components meet the requirements and to ensure that the vibration isolation effect and the performance of related components meet the design expectations.
Keywords:cross-layer isolation; damping coefficient; conceptual design; elastic sliding bearing
作者簡介：卜龍瑰，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：99790522@qq.com。
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