- 摘 要
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（中衡設(shè)計集團(tuán)股份有限公司， 蘇州 215021）
［摘要］成都某會所結(jié)構(gòu)由混凝土地下室、混凝土塔樓、塔樓之間32m跨度鋼結(jié)構(gòu)桁架連廊以及連廊上部12-3m跨度鋼結(jié)構(gòu)網(wǎng)殼組成。通過建立包含混凝土結(jié)構(gòu)和鋼結(jié)構(gòu)的整體模型，對結(jié)構(gòu)承載能力和穩(wěn)定性進(jìn)行了全面分析，其中著重分析了連廊桁架上弦桿的平面外計算長度、鋼結(jié)構(gòu)連廊的溫度效應(yīng)、鋼結(jié)構(gòu)連廊的舒適度問題；并且根據(jù)分析結(jié)果，進(jìn)行有針對性的加強和處理。計算結(jié)果表明，本工程連廊桁架上弦桿的平面外計算長度系數(shù)約為2；桁架連廊的溫度效應(yīng)較大，且連廊上是否建立混凝土樓板對溫度效應(yīng)有較大影響；另外，此連廊舒適度符合《高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程》（JGJ 3—2010）的要求。
［關(guān)鍵詞］桁架連廊； 平面外計算長度； 溫度效應(yīng)； 舒適度
中圖分類號：TU391文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2016)20-0099-05
Structural design and analysis on a large-span composite truss corridor
Yang Weixing, Wang Chenxu, Lu Jianglong, Shen Xiaoming, Li Gang, Xiong Minghu
( ARTS Group Co., Ltd., Suzhou 215021, China)
Abstract:A clubhouse in Chengdu constitutes of a concrete basement, two concrete towers, a 32m-span steel truss corridor between the concrete towers and a 12-3m-span steel reticulated shell above the truss corridor. An overall model including the concrete structure and steel structure were established to conduct a comprehensive analysis on the carrying capacity and stability of the structure. The out-of-plane calculation length of the upper chord of the steel truss corridor, the temperature effect and the comfort degree of the truss corridor were analyzed emphatically. According to the analysis results, the targeted strengthening and treatment were carried out. Analysis results show that the out-of-plane calculation length factor is about 2 for the upper chord of the truss corridor in this project. The temperature effect of the steel truss corridor is significant, and there is a significant influence on the temperature effect whether to consider the concrete slab in the calculation model. And the comfort degree of the corridor meets the requirements of the specification of Technical specification for concrete structures of tall building (JGJ 3 — 2010).
Keywords:truss corridor; out-of-plane calculation length; temperature effect; comfort degree
作者簡介：楊偉興，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：yangweixing@artsgroup.cn。
