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钢筋混凝土框架结构作为大型火力发电厂主厂房结构有着良好的经济性。由于生产工艺上的要求,不允许在电厂主厂房结构内设置温度伸缩缝,使得主厂房成为超长结构。解决由于结构超长而出现过大的温度(收缩)效应是一个非常重要的课题。基于火力发电厂钢筋混凝土框架结构的基本数据,建立弹塑性模型分析超长结构的温度效应;并建立温度(收缩)作用下的裂缝宽度分析模型,研究了内置伸缩缝对降低超长框架温度(收缩)效应的影响及其有效性。
Reinforced concrete frame structure as a large-scale thermal power plant structure has a good economy. Due to the requirements of the production process, it is not allowed to set the temperature expansion joints in the main plant structure of the power plant, so that the main plant structure becomes an extra long structure. Solving the problem of excessive temperature (shrinkage) due to the long structure is a very important issue. Based on the basic data of reinforced concrete frame structure of thermal power plant, the elastic-plastic model was established to analyze the temperature effect of the ultra-long structure. The crack width analysis model under temperature (shrinkage) was established. The effect of built- Contraction) effect and its effectiveness.