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首页> 外文期刊>International journal of materials and structural integrity >Thermodynamic analysis of temperature shrinkage effect of wall filled frame structure
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Thermodynamic analysis of temperature shrinkage effect of wall filled frame structure

机译：墙体框架结构温度收缩效应的热力学分析

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The existence of temperature cracks seriously affects the use of infilled walls. This paper reports on the analysis of finite element numerical simulation about this. The calculation method of wall temperature stress had been discussed, and found the determining method for location of temperature crack. And on this basis, it studied on the wall crack design theory based on temperature effect. Though the real-time substructure test, research the main factors of temperature shrinkage that affect wall cracking. It was found that the temperature contraction developed rapidly in the early stage, and then slowed down gradually, after 28 days, the shrinkage of each specimen was almost stable. Compared with the standard curing condition, the temperature shrinkage was more obvious under natural curing condition. Also the cement mortar shrinkage effect is better than that of mixed mortar in reducing temperature shrinkage. These conclusions provide a reference for controlling the cracking of wall.
机译：温度裂缝的存在严重影响了填充墙的使用。本文对此进行了有限元数值模拟分析。讨论了壁温应力的计算方法，找到了确定温度裂缝位置的方法。在此基础上，研究了基于温度效应的墙体裂缝设计理论。通过实时的子结构测试，研究影响壁面开裂的温度收缩的主要因素。结果发现，温度收缩在早期阶段迅速发展，然后逐渐减慢，在28天后，每个样品的收缩率几乎是稳定的。与标准固化条件相比，自然固化条件下的温度收缩更为明显。在降低温度收缩方面，水泥砂浆的收缩效果也优于混合砂浆。这些结论为控制墙体开裂提供了参考。

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