论文部分内容阅读
单层厂房结构(包括露天结构)的长度或宽度较大时,应设置温度伸缩缝,以防止产生不利的温度变形和温度内力。现行规范规定,当温度伸缩缝间距超过一定值时,应对结构中的温度内力进行计算,并在设计中考虑其不利影响。但是,计算温度变形和温度内力时,设计者往往会遇到困难。一般书籍中只介绍了它们的几何和力学分析方法,而计算时所需要的原始条件和数据较难确定,例如温度变形和温度内力的损失值为多少?温度差应如何取值?等等。本文根据对全国有关各地的调查和部份温度变形的实测数据,经过分析研究,对如何较为合理地确定上述数据以及如何计算温度变形和温度内力提出看法,供设计者参考。
When the length or width of single storey structure (including open structure) is large, temperature expansion joints should be installed to prevent unfavorable temperature deformation and temperature internal forces. The current code states that when the temperature expansion joint gap exceeds a certain value, the temperature internal forces in the structure should be calculated, and its adverse effects should be considered in the design. However, designers often encounter difficulties in calculating temperature distortion and temperature internal forces. In general books, only their geometric and mechanical analysis methods are introduced, and the original conditions and data required for calculation are more difficult to determine, such as how much is the temperature deformation and the loss of temperature internal forces, how temperature differentials should be taken, and so on. This article based on the investigation of the relevant regions of the country and the actual measured data of some temperature deformation, after analysis and research, on how to reasonably determine the above data and how to calculate the temperature deformation and internal forces of temperature to provide views for the designer’s reference.