（中衡设计集团股份有限公司， 苏州 215021）

［摘要］成都某会所结构由混凝土地下室、混凝土塔楼、塔楼之间32m跨度钢结构桁架连廊以及连廊上部12-3m跨度钢结构网壳组成。通过建立包含混凝土结构和钢结构的整体模型，对结构承载能力和稳定性进行了全面分析，其中着重分析了连廊桁架上弦杆的平面外计算长度、钢结构连廊的温度效应、钢结构连廊的舒适度问题；并且根据分析结果，进行有针对性的加强和处理。计算结果表明，本工程连廊桁架上弦杆的平面外计算长度系数约为2；桁架连廊的温度效应较大，且连廊上是否建立混凝土楼板对温度效应有较大影响；另外，此连廊舒适度符合《高层建筑混凝土结构技术规程》（JGJ 3—2010）的要求。

［关键词］桁架连廊； 平面外计算长度； 温度效应； 舒适度

中图分类号：TU391文献标识码：A文章编号：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

作者简介：杨伟兴，高级工程师，一级注册结构工程师，Email：yangweixing@artsgroup.cn。