ANALYSIS ON TEMPERATURE STRESS OF SUPER-LONG FRAME STRUCTURE WITH BEAM TEMPERATURE LAG TAKEN INTO ACCOUNT
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摘要: 施工及使用阶段混凝土结构内部的温度场并不是一致的,针对目前对超长框架结构的温度应力计算中整个结构温度分布相同的假定进行分析计算,得出考虑梁温度变化滞后效应后,楼板的温度应力会有较大的提高,各个构件的内力及位移也有相应的变化。Abstract: At present the analysis of super-long frame structure always assumes the same temperature distribution as the concrete temperature field under construction and use.Yet they are different actually;and it is obtained from calculation that the slab temperature stress will be greatly increased and the internal force and displacement of the member of the structure will be varied when considering lagging in temperature change of beam.
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Key words:
- super-long structure /
- temperature field /
- lag in temperature change /
- temperature stress
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GB 50010-2002 混凝土结构设计规范 [2] 韩重庆,孟少平.大面积混凝土梁板结构温度应力问题的探讨.建筑技术,2000,31(12):820-822 [3] 冯健,吕志涛.超长混凝土结构的研究与应用.建筑结构学报,2001,22(6):14-19 [4] 樊小卿.温度作用与结构设计.建筑结构学报,1999,20(2):43-50 [5] 雷预枢,叶伟年.钢筋混凝土框架结构屋盖温度效应的量测与研究.建筑结构学报,1998,19(6):20-26 [6] 王铁梦.工程结构裂缝控制.北京:中国建筑工业出版社,1997:172-175;433-434
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