温度诱导缝对超长结构温度应力的影响研究

引用文献:

李涛 梁汝鸣 和西良 葛序尧 刘洋. 温度诱导缝对超长结构温度应力的影响研究[J]. 建筑结构,2022,48(3):13-18.

LI Tao LIANG Ruming HE Xiliang GE Xuyao LIU Yang. Research on the influence of temperature induced seam on the temperature stress of super-long structure[J]. Building Structure,2022,48(3):13-18.

作者:李涛 梁汝鸣 和西良 葛序尧 刘洋
单位:中建八局第二建设有限公司设计研究院
摘要:为研究设置温度诱导缝在解决超长结构温度应力问题方面的作用和效果,以某科技文化中心项目为例,采用MIDAS Gen和ABAQUS就地下室顶板进行建模分析,探讨了四种不同类型温度诱导缝的效果。结果表明:设置温度诱导缝可以较好地释放温度应力;综合考虑结构布置的便利和设置温度诱导缝的效果,选用不增设柱跨、不断开主梁的凹槽型温度诱导缝较为合理;可以通过加强温度诱导缝所在跨主梁的配筋来解决主梁不断开的问题。
关键词:温度诱导缝,温度应力,超长结构,地下室结构
作者简介:李涛,硕士,工程师,从事大体积混凝土温度应力、钢结构稳定研究,Email:litaohit@foxmail.com。
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Research on the influence of temperature induced seam on the temperature stress of super-long structure
LI Tao LIANG Ruming HE Xiliang GE Xuyao LIU Yang
(Design and Research Institute of the Second Construction Limited Company of China Construction Eighth Engineering Division)
Abstract: In order to study the role and effect of setting temperature induced seam in solving the temperature stress problem of super-long structure, a scientific and technological cultural center project was used as an example, and MIDAS Gen and ABAQUS were used to model and analyze the basement roof, and the effects of four different types of temperature induced seams were discussed. The results show that temperature induced seam can release temperature stress well. Considering the convenience of structural layout and the effect of setting temperature induced seam, it is more reasonable to select the groove temperature induced seam without adding column span and opening main girder continuously. The problem of continuous opening of the main girder can be solved by strengthening the reinforcement of the cross main girder where the temperature induced seam is located.
Keywords: temperature induced seam; temperature stress; super-long structure; basement structure
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