关键词: 装配式建筑, 钢筋混凝土框架, 螺栓连接节点, 温度场, 有限元分析

Abstract: Abstract: In order to further study the temperature distribution of bolted joints of prefabricated reinforced concrete frame, the temperature distribution and development of bolted joints of prefabricated reinforced concrete frame were studied by the experiment. On the basis of temperature field experiment, a theoretical calculation model of temperature field for the bolted joints of prefabricated reinforced concrete frame was proposed by selecting reasonable thermal parameters of materials and adopting appropriate modeling method, and the calculated results were in good agreement with the test results, the calculation model is reasonable. The experimental study of temperature field shows that compared with the beam-column section, the temperature of the bolts in the core area of the joints increases slowly and is lower. In the test, the temperature of lower bolts is higher, and the temperature of upper bolts is lower. The temperature of the bolts near the joint core area is lower, while the temperature of the bolts far away from the joint core area is higher.

Key words: Key words: prefabricated building, reinforced concrete frame, bolted joints, temperature field, finite element analysis