- 摘 要
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(華東建筑設(shè)計研究院有限公司 上海 200002)
［提要］ 介紹了國家圖書館二期工程結(jié)構(gòu)設(shè)計過程，主要包括結(jié)構(gòu)體系和抗側(cè)力體系確定、結(jié)構(gòu)計算分析、結(jié)構(gòu)超限對策、抗震設(shè)計及巨型鋼桁架結(jié)構(gòu)的材料選擇與節(jié)點構(gòu)造等內(nèi)容。多道抗震設(shè)防的概念以及重要構(gòu)件基于性能設(shè)計的理念在結(jié)構(gòu)設(shè)計中得以貫徹。巨型鋼桁架采用“地面拼裝，整體提升”的施工安裝方案，其整體提升的總重量達10 388t，目前居世界第一。
［關(guān)鍵詞］ 巨型鋼桁架 大跨度結(jié)構(gòu) 節(jié)點構(gòu)造 整體提升
Structural Design of Steel Megatruss in National Library PhaseⅡ/Rui Mingzhuo, Liu Mingguo, Wang Dasui, Sheng Feng (East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002,China)
Abstract:The process of structural design for National Library PhaseⅡ is introduced including the structural system establishment, structural analysis, seismic design, material selection and joint connection of long span great steel truss etc. Multiaspect seismic fortification concept and performancebased design of important structural element are carried out. Assembled on the ground and whole structure hoisting is applied on the installation of great steel truss. The total weight of whole structure hoisting is 10 388t which is the largest in the world.
Keywords:great steel truss; long span construction; joint connection; whole structure hoisting
