无粘结预应力混凝土框架火灾下的温度反应分析

Temperature response analysis of unbonded prestressed reinforced concrete frame structure subjected to fire

火灾中影响无粘结预应力结构反应的因素较多,其中结构在火灾时对温度的反应是研究结构抗火性能的重要方面。本文通过模拟真实火灾环境,对4榀无粘结预应力混凝土框架进行了火灾试验,测出了在火环境下结构的温度场分布情况,并用计算机模拟温度场,从而为结构理论分析提供了温度数据。

There are many factors to influence unbonded prestressed reinforced concrete frame structure,in which temperature response of the structure to fire is one of the important aspects.In this paper,four unbonded prestressed reinforced concrete frames were tested in the fire,distribution of temperature of the structure during the fire was achieved,computer program was developed to simulate the temperature field,and data of temperature was offered to the theoretical analysis of the structure.