| 建筑钢结构中钢构件的防火性能与抗火设计研究 |
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| 引用本文： | 方垒,徐伟良.建筑钢结构中钢构件的防火性能与抗火设计研究[J].火灾科学,2011,20(3):146-151. |
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| 作者姓名： | 方垒 徐伟良 |
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| 作者单位： | 1. 杭州消防支队滨江大队浦沿中队,浙江杭州,310053
2. 浙江工业大学建工学院,浙江杭州,310014 |
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| 摘 要： | 首先有针对性地对当前国内外建筑钢结构中钢构件的防火性能与抗火设计研究背景做了较系统分析,接着,通过有限元程序,对当前应用非常广泛的半刚接门式刚架建筑在火灾高温下的受力性能进行了整体结构非线性分析。计算结果表明：随着温度的升高,钢构件节点的刚度不断下降,当节点的刚度下降到不能约束与其连接的梁柱构件时,结构将发生突然坍塌性...
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| 关 键 词： | 钢构件 防火性能 抗火设计 有限元 刚度 临界温度 |
| 收稿时间： | 2011/5/24 0:00:00 |
| 修稿时间： | 2011/6/27 0:00:00 |
Research on fire performance and fire resistance design of steel members in construction steel structures |
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| FANG Lei and XU Wei-liang.Research on fire performance and fire resistance design of steel members in construction steel structures[J].Fire Safety Science,2011,20(3):146-151. |
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| Authors: | FANG Lei and XU Wei-liang |
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| Institution: | FANG Lei1,XU Wei-liang2(1.Hangzhou Binjiang Fire Team,Zhe Jiang,310053,China,2.Zhejiang University Institute of Construction,310014,China) |
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| Abstract: | This paper first makes a summary on the current research status for the fire performance and fire resistance design of construction steel structure steel members,and then,it uses a finite element program to conduct a nonlinear analysis on the mechanical properties of the overall structure for the door type frame construction under high temperatures in fire.The results show that,with the increase of temperature,the stiffness of the steel members node decreases.When the stiffness of the node is not enough to ... |
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| Keywords: | Steel structures Fire performance Fire resistance design Finite element Stiffness Critical temperature |
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