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［提要］ 北京電視中心主樓為超高層建筑，采用巨型鋼框架結(jié)構(gòu)體系。針對原方案設(shè)計的不足和問題，結(jié)合工程的特點(diǎn)介紹了抗震專項(xiàng)審查情況。通過結(jié)構(gòu)優(yōu)化，解決了專項(xiàng)審查中遇到的問題，并改善了結(jié)構(gòu)的抗震性能。巨型鋼框架結(jié)構(gòu)體系是國內(nèi)尚不多見的結(jié)構(gòu)形式，結(jié)合工程實(shí)例，著重介紹超高層巨型鋼框架結(jié)構(gòu)的設(shè)計原則、計算方法、構(gòu)造措施。
［關(guān)鍵詞］ 鋼結(jié)構(gòu) 超高層建筑 巨型框架 鋼桁架 結(jié)構(gòu)優(yōu)化
Design of Mega\|steel Structure System of Main Tower at Beijing TV Center/Shu Weinong,Ke Changhua,Yang Jie,Huang Jia(Beijing Institute of Architectural Design,Beijing 100045,China)Abstract:The main tower of Beijing TV Center is a super highrise building of amegasteelstructure system. Based on the specialty of this project, the review situation is introduced by the seismic design committee. In order to achieve improved seismic performance of the structure, structural optimization of the system is considered. Problems raised by the committee have been solved. Megasteelstructure system has not been implemented in many cases national wide. By presenting the structural design of this building, the design principles, calculation methods and detailing requirements of super highrise megasteel structural system are developed.
Keywords:steel structure; super high\|rise building; mega steel structure; steel truss; structural optimization