| 周边喷涂工字钢截面的防火涂料厚度分区计算 |
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| 引用本文： | 屈立军,潘翀. 周边喷涂工字钢截面的防火涂料厚度分区计算[J]. 消防科学与技术, 2010, 29(1) |
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| 作者姓名： | 屈立军 潘翀 |
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| 作者单位： | 中国人民武装警察部队学院,河北,廊坊065000 |
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| 基金项目： | 国家重点基础研究专项资助项目 |
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| 摘 要： | 在CECS 200:2006防火涂料的厚度计算公式基础上,对工字钢上下翼缘与腹板进行分区,分别采用上下翼缘与腹板的截面系数,计算其防火涂料厚度.并以某钢梁为例,分别计算分区和不分区计算涂料厚度时钢梁各分区温度并进行比较.结果表明,采用分区计算防火涂料厚度,钢构件各部分截面温度呈较均匀分布,从而避免连接部位产生温度应力和腹板的率先破坏.
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| 关 键 词： | 耐火建筑构件 截面系数 分区计算 防火涂料厚度 温度应力 |
Zone-area calculation method on thickness of fireproof coating of I-shaped steel members |
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| QU Li-jun,PAN Chong. Zone-area calculation method on thickness of fireproof coating of I-shaped steel members[J]. Fire Science and Technology, 2010, 29(1) |
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| Authors: | QU Li-jun PAN Chong |
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| Affiliation: | QU Li-jun,PAN Chong (Chinese People Armed Police Force Academy,Hebei Langfang 065000,China) |
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| Abstract: | Based on the formulas CECS 200: 2006 on thickness of fireproof coatings,the cross section of steel member is divided into three zones,therefore the three-divided section coefficients are applied into calculations,and the required thickness of fireproof coatings of each section is calculated.Taking some girder as an example,the temperature of girder with the thickness of fireproof coatings calculated by the methods of zone-area calculation and no zone-area calculation are calculated separately,and the two re... |
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| Keywords: | fire resistant members section coefficient zone-area calculation thickness of fireproof coating thermal stress |
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