| 油罐车火灾场景下斜拉桥钢索极限承载力有限元分析 |
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| 引用本文： | 宁波,刘永军,于保阳,王光远. 油罐车火灾场景下斜拉桥钢索极限承载力有限元分析[J]. 钢结构, 2012, 27(2): 68-72 |
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| 作者姓名： | 宁波 刘永军 于保阳 王光远 |
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| 作者单位： | 沈阳建筑大学土木工程学院,沈阳,110168 |
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| 摘 要： | 提出不同火灾场景对斜拉桥主要结构的影响,得出受火最危险的位置。研究大型油罐车火灾对斜拉桥结构的严重影响。利用大型有限元软件ANSYS对斜拉索进行数值模拟,得出钢索在油罐车火灾升温曲线下内部的温度场。通过截面简化,计算钢索受火的极限承载力和耐火时间。
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| 关 键 词： | 斜拉桥 钢索 油罐车 极限承载力 |
NUMERICAL SIMULATION OF ULTIMATE BEARING CAPACITY OF CABLES FOR A CABLE-STAYED BRIDGE UNDER TANKER FIRE |
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| Ning Bo , Liu Yongjun , Yu Baoyang , Wang Guangyuan. NUMERICAL SIMULATION OF ULTIMATE BEARING CAPACITY OF CABLES FOR A CABLE-STAYED BRIDGE UNDER TANKER FIRE[J]. Steel Construction, 2012, 27(2): 68-72 |
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| Authors: | Ning Bo Liu Yongjun Yu Baoyang Wang Guangyuan |
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| Affiliation: | Ning Bo Liu Yongjun Yu Baoyang Wang Guangyuan(School of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China) |
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| Abstract: | It was proposed and analyzed the effects of different fire scenarios to the main structure of a cable-stayed bridge,and also determined the most dangerous position once fire disaster occurred.It was researched the serious effects of fire disaster on the cable-stayed bridge caused by big tank trucks.Using the finite element software ANSYS,analysis of it was done for numerical stimulation of the temperature field of steel cables,by which the curve of inner temperature field of steel cables under the fire disaster of big tank trucks was gained,and the ultimate bearing capacity and fire resistance time of steel cables under fire were calulated. |
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| Keywords: | cable-stayed bridge steel cables tanker ultimate bearing capacity |
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