(中建八局第二建设有限公司设计研究院, 济南 250014)

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

中图分类号:TU375 文献标志码:A 文章编号:1002-848X(2022)03-0013-06

DOI:10. 19701 / j. jzjg. LS202030

Research on the influence of temperature induced seam on the temperature stress ofsuper-long structure

LI Tao, LIANG Ruming, HE Xiliang, GE Xuyao, LIU Yang

(Design and Research Institute of the Second Construction Limited Company ofChina Construction Eighth Engineering Division, Jinan 250014, China)

Abstract: In order to study the role and effect of setting temperature induced seam in solving the temperature stressproblem of super-long structure, a scientific and technological cultural center project was used as an example, and MIDASGen and ABAQUS were used to model and analyze the basement roof, and the effects of four different types of temperatureinduced 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 toselect the groove temperature induced seam without adding column span and opening main girder continuously. The problemof continuous opening of the main girder can be solved by strengthening the reinforcement of the cross main girder where thetemperature induced seam is located.

Keywords:temperature induced seam; temperature stress; super-long structure; basement structure

第一作者: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.

[引用本文] 李涛,梁汝鸣,和西良,等. 温度诱导缝对超长结构温度应力的影响研究 [ J] . 建筑结构,2022,52(3) :13-18. LI Tao,LIANG Ruming,HE Xiliang,et al. Research on the influence of temperature induced seam on thetemperature stress of super-long structure[ J] . Building Structure,2022,52(3) :13-18.