| 翼缘宽厚比对约束钢梁抗火性能的影响研究 |
| |
| 引用本文： | 鲁博,王海忠,王文婷. 翼缘宽厚比对约束钢梁抗火性能的影响研究[J]. 钢结构, 2008, 23(11): 62-65 |
| |
| 作者姓名： | 鲁博 王海忠 王文婷 |
| |
| 作者单位： | 北京京诚华宇建筑设计研究院有限公司,北京,100053;北京工业大学,建筑工程学院,北京,100124;中国建筑科学研究院,北京,100013 |
| |
| 摘 要： | 为了研究翼缘宽厚比对高温下钢梁抗火性能的影响，使用ANSYS有限元程序模拟火灾升温条件下的约束钢梁，通过建立模型，时钢梁进行热-结构耦合作用的计算。计算结果显示：钢梁截面温度为非均匀分布，约束钢梁在火产生的温度应力下会发生较大的挠度。通过比较轴力、挠度等随温度变化的规律，分析不同翼缘宽厚比对钢梁抗火性能的影响。
|
| 关 键 词： | 钢梁 抗火 大变形 有限元分析 热-结构耦合 |
THE INFLUENCE OF FLANGE WIDTH-THICKNESS RATIO ON FIRE-RESISTANT BEHAVIOR OF RESTRAINED STEEL BEAMS IN FIRE |
| |
| Lu Bo,Wang Haizhong,Wang Wenting. THE INFLUENCE OF FLANGE WIDTH-THICKNESS RATIO ON FIRE-RESISTANT BEHAVIOR OF RESTRAINED STEEL BEAMS IN FIRE[J]. Steel Construction, 2008, 23(11): 62-65 |
| |
| Authors: | Lu Bo Wang Haizhong Wang Wenting |
| |
| Affiliation: | Lu Bo(Capital Engineering & Research Incorporation Limited Beijing 100053) Wang Haizhong(College of Architecture , Civil Engineering,Beijing University of Technology Beijing 100124)Wang Wenting(China Academy of Building Research Beijing 100013) |
| |
| Abstract: | In order to analyze the influence of flange width-thickness ratio on fire-resistant behavior of unprotected restrained steel beams in fire, finite element analysis software ANSYS is used to simulate restrained steel beams under thermal effects. After thermal-structure coupling analysis of the steel beams, results show that temperature distribution of H-section steel beam is non-uniform, and a large deflection will occur at a restrained steel beam under thermal effects. Furthermore, this paper analyzes the i... |
| |
| Keywords: | steel beam fire resistance large deflection finite element analysis thermal-structure coupling analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
