温度应力对超长结构的影响
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伍朝晖 孙柏林
(北京市建筑工程研究院 100045)[提要] 结合一具体工程介绍了复杂平面、超长跨度的框架结构温度应力的测试工作及计算分析。分析的数据表明,温度变形对无缝超长结构起控制作用,构造上可采取施加预应力和隔热等措施来控制温度变形,保证结构安全。内容可供工程设计参考。
[关键词] 混凝土结构 超长结构 温度应力 传感器 测试The test and calculation analysis of temperature stress of a frame structure with complex plane and super-length span are introduced in detail. Some useful data are presented and can be referred in design. The results show that the temperature deformation control the behavior of super-length frame structure, and some measures, such as prestresslng, heat insulation, may be taken for the structural security.
Keywords: concrete structure; super-length structure; temperature stress; dector; test