摘要
框架结构整体的耐火性能研究是保证结构在火灾下安全性的重要问题,通过ABAQUS建立钢筋混凝土柱-钢梁框架结构的温度场模型和热力耦合力学模型,分析在真实火灾升温作用下,不同受火工况对于组合框架的耐火性能的影响,并与标准温度曲线做对比,得出框架的温度场、应力、应变云图,并对框架结构的柱顶竖向位移、梁柱节点水平位移、梁跨中挠度、应力应变发展规律进行分析。
Research on the overall fire resistance performance of the frame structure is an important issue to ensure the safety of the structure under fire.This paper establishes the temperature field model and thermo-mechanical coupling mechanical model of reinforced concrete column-steel beam frame structure through ABAQUS,analyzes the effect of different fire conditions on the fire resistance performance of the composite frame under the effect of real fire heating,and compares it with the standard temperature curve.By comparison,the temperature field,stress and strain cloud diagram of the frame are obtained,and the vertical displacement of the column top of the frame structure,the horizontal displacement of the beam-column node,the beam mid-span deflection,and the development law of stress and strain are analyzed.
作者
李雪微
黄凯
徐蕾
LI Xue-wei;HUANG Kai;XU Lei(School of Civil Engineering, Dalian Minzu University, Dalian Liaoning 116650, China)
出处
《大连民族大学学报》
2021年第5期436-440,445,共6页
Journal of Dalian Minzu University
基金
国家自然科学基金项目(52178461)
辽宁省教育厅基金项目(LJYT201908)。
