【摘要】 根据火灾实验数据对结构的连续性、荷载大小及不同的连接结构对梁抗火性能的影响,进行了仿真计算,发现数值模拟得出的梁挠度-温度响应曲线与实验结果有极好的相关性,数值模拟能准确地预测结构出现急速变形的温度及时间.文中分析了连接结构的类型、轴向约束的强弱及载荷大小对结构抗火性能的影响.该研究诣在帮助了解结构的连续性及不同的连接形式对梁火灾下行为的影响并为开发简单,理性的设计方法提供研究基础.更多还原

【Abstract】 The effect of structural connection, continuity under different loads in the event of fire are simulated and studied against experimental data and results. The results, deflection in mid span against temperature, temperature developing quick deflection, acquired from experiment and numerical simulation show good related character. The effect of connection type, axial restraint and loads on the fire resistance of structures has been studied. It is the research goal to get the knowledge of the effect of connection type, axial restraint on the structure behavior in the event of fire and providing research basis of developing simple and rational design method.更多还原