摘要
火灾下型钢混凝土柱的抗火性能对结构整体抗倒塌能力影响重大。本文应用有限元软件ABAQUS对四面受火的型钢混凝土柱进行热-力耦合分析,考虑截面尺寸、含钢率、配筋率、轴压比、长细比和荷载偏心率等参数对型钢混凝土柱抗火性能的影响,得出结论:截面尺寸、含钢率、轴压比、长细比和荷载偏心率对型钢混凝土柱抗火性能影响较大,配筋率对型钢混凝土柱抗火性能影响有限。
The fire resistance of the steel reinforced concrete column under fire has a great influence on the overall anti-collapse ability of the structure. In this paper,the finite element software ABAQUS is used to analyze the thermo-mechanical coupling of the reinforced concrete columns with four sections. Considering the parameters such as section size,steel content,reinforcement ratio,axial compression ratio,slenderness ratio and load eccentricity,the results show that the cross section size,steel content,axial compression ratio,slenderness ratio and load eccentricity have great influence on the fire resistance of steel reinforced concrete columns,and the reinforcement ratio has little effect on the fire resistance of steel reinforced concrete columns.
作者
刘猛
张斌
李蒙杰
Liu Meng;Zhang Bin;Li Mengfie(School of Civil and Architectural Engineering, Liaoning University of Technology, Jinzhou 121001 , China)
出处
《建筑科学》
CSCD
北大核心
2018年第5期113-117,130,共6页
Building Science
