（浙江省建筑設(shè)計(jì)研究院， 杭州 310006）
[摘要] 樂清總部經(jīng)濟(jì)園一期共有7幢塔樓，其中2#~4#樓頂部設(shè)有2座4層高的高空大跨鋼連廊。2#~4#樓地面以上均為20層，高83.60m，采用現(xiàn)澆鋼筋混凝土框架-核心筒結(jié)構(gòu)體系。結(jié)構(gòu)設(shè)計(jì)難點(diǎn)主要是高空連廊、斜柱轉(zhuǎn)換、大地下室?？紤]到連廊跨度和兩端塔樓平面布置方式的不同，底部分別采用了2層通高和1層高的轉(zhuǎn)換桁架，余下各層則通過鋼立柱形成普通鋼框架結(jié)構(gòu)；桁架與塔樓的連接方式也分別采用了柔性連接和剛性連接。并通過靜力推覆分析預(yù)測連廊兩端最大位移差，為支座選型提供依據(jù)。針對斜柱轉(zhuǎn)換和大地下室，分別采用了相應(yīng)構(gòu)造措施，以確保結(jié)構(gòu)安全可靠。
[關(guān)鍵詞] 高空大跨鋼連廊;斜柱;大地下室;連接方式;靜力推覆分析
作者簡介：周平槐，碩士，工程師，Email:anji18@126.com。
中圖分類號：TU318 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2013)S1-0162-05
Structural design on Yueqing Headquarters Economy Park phase Ⅰ
Zhou Pinghuai, Yang Xuelin, Feng Yongwei, Wu Xiaoping, Hong Yuan
( Zhejiang Prov. Institute of Architectural Design and Research, Hangzhou 310006, China)
Abstract: Two high-position and large-span steel corridors, which both are four-storey high, connect among 2# ~4# tower in Yueqing Headquaters economic Park, a total of seven towers. These three towers are 20 stories and 83.60m high above the ground, and adopt reinforced concrete frame-core tube structure system. Obviously it’s difficult to design the high-position corridor, transfer inclined-column, and large basement. According to different spans and different layout of towers on both sides, the height of the transfer truss in the steel corridor is two-storey and one-storey respectively, and flexible and rigid bearing connections are applied. Other stories therefore composite of ordinary steel frame structure. In order to select the bearings, the maximum displacement is determined by push-over analysis. Moreover some structural measures corresponding to these design difficulty adopt to ensure the structure safety.
Keywords: high-position and large-span steel corridors; inclined column; large basement; connection; push-over analysis
