摘要
本文对12根钢筋混凝土简支梁进行了一面、二面、三面加温的抗火性能试验。研究了不同的荷载、升温曲线、钢筋保护层厚度对简支梁抗火性能的影响。在理论分析上,提出了各种温度场下的弯矩-曲率关系,编制了变刚度有限元非线性全过程分析程序,分析计算了钢筋混凝土简支梁的内力、挠度的反应,并由试验数据所验证。
Through fire resistance experiments of twelve simple supported reinforced concrete beams exposed to fire, the responses of reinforced concrete beams exposed to fire with different service loads, different elevated temperature curves and different concrete cover have been investigated. A moment-curvature relation ship at various temperatures have been put forward. Lastly, a finite element relation nonlinear analysis computer program is compiled for calculating the stress and deflection response of reinforced concrete beam exposed to fire and the computing result is verified by test data.
出处
《土木工程学报》
EI
CSCD
北大核心
1993年第3期47-54,共8页
China Civil Engineering Journal
