| 防火涂料破损后钢柱的温度分布 |
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| 引用本文： | 王卫永,李国强.防火涂料破损后钢柱的温度分布[J].广西大学学报(自然科学版),2010,35(1). |
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| 作者姓名： | 王卫永 李国强 |
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| 作者单位： | 1. 重庆大学土木工程学院,重庆,400030
2. 同济大学土木工程学院,上海,200092;同济大学土木工程防灾国家实验室,上海,200092 |
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| 基金项目： | 国家自然科学基金资助项目(50738005);;国家自然科学基金创新研究群体资助项目(50621062);;重庆大学人才引进基金资助项目(0903005101653) |
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| 摘 要： | 为了研究防火涂料的局部破损对钢柱抗火性能的影响,采用有限元分析方法对防火涂料局部破损的钢柱进行了温度分布研究。研究表明:火灾下防火涂料破损段温度可以按照无防火保护的构件进行升温计算;在防火涂料破损的交界面附近,温度分布有较短的(约300mm)过渡区域,过渡区域之后钢柱的温度分布又趋于均匀,防火涂料未破损段可以按照有防火保护的构件进行升温计算;腹板防火涂料是否破损对端部翼缘破损的钢柱温度分布影响不大。
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| 关 键 词： | 钢柱 防火涂料 温度分布 |
Temperature distribution of steel columns after partial damage to fire protection |
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| WANG Wei-yong,LI Guo-qiang.Temperature distribution of steel columns after partial damage to fire protection[J].Journal of Guangxi University(Natural Science Edition),2010,35(1). |
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| Authors: | WANG Wei-yong LI Guo-qiang |
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| Institution: | 1. School of Civil Engineering;Chongqing University;Chongqing 400030;China;2. School of Civil Engineering;Tongji University;Shanghai 200092;3. State Key Lab for Disaster Reduction in Civil Engineering;China |
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| Abstract: | In order to investigate the influence of fire retardant coating damage on the temperature distribution,the finite element analysis was adopted to study the temperature distribution of steel columns with local damage of fire retardant coating. The investigation shows that the temperature at the portion with local damage can be calculated as that without fire retardant coating. At the boundary of damage field,there is a transition zone (about 300mm) in temperature distribution. The tempera-ture become uniform... |
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| Keywords: | steel column fire protection temperature distribution |
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