| 钢梁火灾下响应的虚拟仿真 |
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| 引用本文： | 郝淑英,杨秀萍,王鹏林,张敬宇.钢梁火灾下响应的虚拟仿真[J].天津理工大学学报,2004,20(3):9-12. |
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| 作者姓名： | 郝淑英 杨秀萍 王鹏林 张敬宇 |
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| 作者单位： | 1. 天津理工学院,机械工程学院,天津,300191;火灾科学国家重点实验室,合肥,230026
2. 天津理工学院,机械工程学院,天津,300191 |
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| 基金项目： | 火灾科学国家重点实验室资助项目(HZ2002-KF05);天津市高等学校科技发展基金资助项目(20010102) |
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| 摘 要： | 根据火灾实验数据对结构的连续性、荷载大小及不同的连接结构对梁抗火性能的影响,进行了仿真计算,发现数值模拟得出的梁挠度-温度响应曲线与实验结果有极好的相关性,数值模拟能准确地预测结构出现急速变形的温度及时间.文中分析了连接结构的类型、轴向约束的强弱及载荷大小对结构抗火性能的影响.该研究诣在帮助了解结构的连续性及不同的连接形式对梁火灾下行为的影响并为开发简单,理性的设计方法提供研究基础.
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| 关 键 词： | 轴向约束 连接结构 钢结构 数值模拟 火灾 |
| 文章编号： | 1004-2261(2004)03-0009-04 |
| 修稿时间： | 2004年3月22日 |
Numerical simulation of behavior of steel beam in fire |
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| HAO Shu-ying.Numerical simulation of behavior of steel beam in fire[J].Journal of Tianjin University of Technology,2004,20(3):9-12. |
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| Authors: | HAO Shu-ying |
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| Institution: | HAO Shu-ying~ |
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| Abstract: | The effect of structural connection, continuity under different loads in the event of fire are simulated and studied against experimental data and results. The results, deflection in mid span against temperature, temperature developing quick deflection, acquired from experiment and numerical simulation show good related character. The effect of connection type, axial restraint and loads on the fire resistance of structures has been studied. It is the research goal to get the knowledge of the effect of connection type, axial restraint on the structure behavior in the event of fire and providing research basis of developing simple and rational design method. |
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| Keywords: | axial restraint structural connection steel structures numerical simulation fire |
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