[1]王卫永,董毓利,隋炳强.焊接钢框架边节点抗火性能试验[J].东南大学学报(自然科学版),2007,37(2):240-244.[doi:10.3969/j.issn.1001-0505.2007.02.012]
 Wang Weiyong,Dong Yuli,Sui Bingqiang.Fire-resistant experiment of welded single-sided joint of steel frame[J].Journal of Southeast University (Natural Science Edition),2007,37(2):240-244.[doi:10.3969/j.issn.1001-0505.2007.02.012]
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焊接钢框架边节点抗火性能试验()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
37
期数:
2007年第2期
页码:
240-244
栏目:
土木工程
出版日期:
2007-03-20

文章信息/Info

Title:
Fire-resistant experiment of welded single-sided joint of steel frame
作者:
王卫永1 董毓利2 隋炳强1
1 同济大学建筑工程系, 上海 200092; 2 哈尔滨工业大学土木工程学院, 哈尔滨 150090
Author(s):
Wang Weiyong1 Dong Yuli2 Sui Bingqiang1
1 Department of Building Engineering, Tongji University, Shanghai 200092, China
2 School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
关键词:
加劲肋 边节点 抗火 有限元分析
Keywords:
rib stiffener single-sided joint fire resistance finite element method
分类号:
TU392
DOI:
10.3969/j.issn.1001-0505.2007.02.012
摘要:
为了得到焊接钢框架边节点的抗火性能,使用火灾试验炉对2个足尺H形钢框架节点进行了火灾行为的试验研究,并利用非线性有限元软件对试件进行了火灾反应分析.试验表明:焊接节点在火灾下有较大的转动能力,柱翼缘的弯曲变形和腹板的剪切变形是引起节点转动的主要因素,柱腹板加劲肋可提高节点临界温度50℃左右.将有限元模拟结果和试验结果进行了比较,取得了较好的一致,验证了有限元分析的正确性和可行性.最后提出了焊接节点抗火设计的建议,提高焊缝等级和设置柱腹板加劲肋可以提高节点的抗火性能.
Abstract:
In order to investigate the fire resistance of welded single-sided joint of steel frame, an experimental study was performed by using furnace for two full-scale specimens made with H shaped steel. Parallel to the experiment work a simulating investigation was carried out employing the finite element package. The results show that the welded joint can rotate largely in fire and flexure of column flange and shear deformation are main factors causing the rotation of joint, furthermore, column stiffeners can increase the critical temperature of joint by about 50 ℃. By comparing the results obtained from the test and finite element analysis, a very good agreement is found, showing the accuracy and feasibility of the simulation with finite element method. Finally, suggestion is made for fire resistant design of welded joint. Improving weld grade and setting column stiffeners can improve the fire resistance of joint.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 国家重点基础研究发展计划(973计划)资助项目(2001CB409603)、 国家自然科学基金国际合作重大资助项目(50320120156).
作者简介: 王卫永(1982—),男,博士生; 董毓利(联系人),男,博士,教授,博士生导师,DongYL@hit.edu.cn.
更新日期/Last Update: 2007-03-20