摘要
利用有限元分析软件ABAQUS,对高层钢管混凝土柱-钢梁组合框架不同区域发生火灾的情况进行数值模拟,研究高温下各构件的温度场分布以及不同区域框架受火时的变形情况、耐火极限、应力分布状况。结果表明:在考虑楼板有利作用下,钢梁上翼缘的温度最低;高层建筑的底层变形最大、耐火极限最短、钢管的应力最集中、核心混凝土处于全截面受压状态。
The numerical simulation of a certain concrete-filled steel tubular(CFST)column and steel beam composite frame structure in high-rise building when different parts were subjected to fire were carried out,and the temperature distribution of structural members under the high temperature,and the fire resistance,the deformation conditions,and the stress distribution were studied.The results show that the temperature of the top flange of the steel member is the lowest when considering the beneficial action of floor slab.Also,the deformation of the ground floor is the most serious,the fire resistance rating is the shortest,the stress of steel tube is the most concentrated,and the core concrete stays compressed status of whole section.
作者
高春彦
王佳丽
彭驰
焦德阳
GAO Chun-yan;WANG Jia-li;PENG Chi;JIAO DE-YANG(School of Civil Engineering,Inner Mongolia University of Science and Technology,Inner Mongolia Baotou 014010,China;China Ship Building Industry Corporation Haizhuang Wind Power Co.,Ltd,Chongqing 400000,China;Baogang Northwest Venture Construction Co.,Ltd.,Inner Mongolia Baotou 014010,China)
出处
《消防科学与技术》
CAS
北大核心
2020年第11期1511-1514,1518,共5页
Fire Science and Technology
基金
内蒙古自然科学基金资助项目(2018MS05041)
关键词
建筑火灾
高层建筑
框架结构
钢管混凝土柱
building fire
high-rise building
frame structure
concrete-filled steel tubular column
作者简介
高春彦(1978-),女,内蒙古科技大学土木工程学院副教授,博士,主要从事钢与混凝土组合结构研究,内蒙古自治区包头市内蒙古科技大学阿尔丁大街7号,014010。
