柔性连接钢梁火灾行为的试验研究  

Experimental study on behaviors of steel beams with flexible connections under fire

作　　者：丛术平[1] 董毓利[2] 梁书亭[3] 

机构地区：[1]山东科技大学土建学院,青岛266510 [2]青岛理工大学土木学院,青岛266033 [3]东南大学土木学院,南京210096

出　　处：《建筑结构》2008年第7期61-63,42,共4页Building Structure

基　　金：国家重点基础发展规划项目(2001CB409600)子课题;国家自然科学基金委国际合作重大项目(2003-50320120156);山东省科技厅项目;青岛市科技局项目

摘　　要：对4个H型钢梁试件进行了火灾试验研究。H型钢梁端部采用柔性连接的梁柱节点形式,探讨了H型钢梁在火灾作用下的变形、温度内力和梁的外表面温度分布,并给出了荷载和跨度对采用柔性连接节点形式的H型钢梁抗火性能的影响。为柔性连接钢梁火灾行为的理论研究提供了依据。In order to investigate the structural characteristics of H-shaped steel beams under fire, an experimental research which consisted 4 specimens had been carried out. Beam-column joints of the H-shaped steel beams are flexible connections. The deformation, axial force owing to thermal effects and temperature distribution of steel beams＇ surface are presented, and the effects of different load and span on the behaviors of H-shaped steel beams with flexible connections are also given. Results provide a basis for the theoretical research of steel beams with flexible connections.

关 键 词：火灾 柔性连接钢梁 温度内力 温度分布 

分 类 号：TU392.1[建筑科学—结构工程] TU998.1