张达生，袁强，娄泽方，宗静，袁晨

（中信建筑设计研究总院有限公司，武汉 430014）

 

［摘要］武汉体育中心体育馆主体结构为复杂超长结构，其温差效应不容忽视。采用ANSYS有限元软件进行计算分析，得到了该结构由于温差产生的变形和内力的分布规律，并通过采用侧向约束刚度较小的框架结构、控制主体结构闭合时的环境温度等设计措施减小温度应力的影响。结构现已投入使用5年多，经历了多个温差周期，没有出现明显的温度裂缝，说明达到了设计要求。

［关键词］超长混凝土结构；温差；收缩；徐变；刚度折减

中图分类号：TU398文献标识码：A文章编号：1002-848X(2012)09-0014-06

 

Zhang Dasheng, Yuan Qiang, Lou Zefang, Zong Jing, Yuan Chen

(CITIC General Institute of Architectural Design and Research Co., Ltd., Wuhan 430014, China)

 

Abstract: The main structure of gymnasium in Wuhan Sports Center is a complex over-long concrete structure, and the temperature difference effects on it can not be ignored during structure design. The temperature difference effects on the structure were analyzed by using ANSYS, and the distribution of the deformation and internal force were obtained. Based on the results, reasonable practical measures, such as using frame structure system with smaller restraint stiffness and controlling ambient temperature of structure closure, were taken to reduce the temperature stress. The structure have served for five years now and experienced many temperature difference periods without significant temperature crack. It shows that the structure has met the design requirements.

Keywords: over-long concrete structure; temperature difference; shrinkage; creep; stiffness reduction

作者简介：张达生，教授级高级工程师，一级注册结构工程师，Email:zzhangdasheng@163.com。

 

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