（1 东莞理工学院建筑工程系，东莞 523808；2 哈尔滨工业大学深圳研究生院，深圳 518060；3 悉地（北京）国际建筑设计顾问有限公司，北京 100013）

［摘要］基于杭州奥体中心主体育场扩大地下室及上部看台混凝土结构体系复杂、体型超长、受环境温差作用影响显著等问题，介绍了一套综合考虑后浇带优化设置和模型底部有限约束刚度取值及混凝土徐变、收缩效应模拟等问题、结合施工进度的合理规划及各阶段温差作用的合理取值、考虑时间效应及施工全过程的温差效应仿真分析方法。分析表明，该方法能较简便合理地探寻混凝土结构自施工开始至使用阶段环境温差效应的发展变化规律，有助于找到结构在温差作用下受力较不利或变形较大的部位或构件，进而可有针对性地提出有效的设计优化建议，并能有效地指导施工进度安排及施工控制。

［关键词］杭州奥体中心; 温差效应; 徐变; 收缩; 施工模拟; 有限刚度

中图分类号：TU375, TU312      文献标识码：A      文章编号：1002-848X(2014)17-0034-06

Analysis of the ambient temperature variation effect on over-length concrete structure of the main stadium of Hangzhou Olympic Sports Center

Sun Can1,2, Fu Xueyi2,3, Zhu Yongjun3, Zhang Ke3, Zheng Yu1

（1 Department of Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; 2 Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518060, China; 3 Branch of Beijing, CCDI Group, Beijing 100013, China）

Abstract:A simulation analysis method of temperature variation effect was introduced to solve the problems in the construction of Hangzhou Olympic Sports Center, including the basement expansion, complex concrete structural system of the upper stand, over-length structural shape and ambient temperature variation influence. The method considers comprehensively the optimization of concrete post-cast strip, the simulation of finite restraint stiffness of model bottom and the simulation of concrete creep and shrinkage effects. Combining with the feasible plan of construction schedule and feasible value of temperature loads in different stages, the simulation analysis method of temperature variation effect considers time effects and construction stages. Results show that the method can be applied in engineering design to reveal the temperature variation effect through the whole generative process of the concrete structure reasonably and effectively, and can help to find out the over-deformed or over-stressed structural components to propose the corresponding effective optimization suggestions and guide construction schedule and construction control.

Keywords:Hangzhou Olympic Sports Center; temperature variation effect; creep; shrinkage; construction simulation; finite stiffness

*国家自然科学基金项目（51308117），国家自然科学基金项目（50578096）。

作者简介：孙璨，博士，讲师，Email: sunc@dgut.edu.cn。

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