| 火灾下钢构件的弹塑性分析和实用计算 |
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| 引用本文： | 魏东,刘应华,朱建明.火灾下钢构件的弹塑性分析和实用计算[J].消防科学与技术,2005,24(5):536-538. |
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| 作者姓名： | 魏东 刘应华 朱建明 |
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| 作者单位： | 1. 北京航空航天大学,土木工程系,北京,100083
2. 清华大学,工程力学系,北京,100084 |
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| 基金项目： | 国家重点基础研究专项经费资助项目(2001CB409603) |
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| 摘 要： | 基于Shanley理论分析了火灾条件下轴心受压钢构件的弹塑性极限稳定性，根据其力学模型，建立了非均匀截面温度场时构件极限载荷的实用计算公式。计算结果表明，该简化公式不仅有较为明确的力学意义，且计算简捷，计算结果精度高。
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| 关 键 词： | 火灾 钢构件 弹塑性分析 计算 |
| 文章编号： | 1009-0029(2005)05-0536-03 |
| 修稿时间： | 2005年4月20日 |
Elastoplastic analysis and practical calculation of steel beam columns under fire condition |
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| WEI Dong,LIU Ying-hua,ZHU Jian-ming.Elastoplastic analysis and practical calculation of steel beam columns under fire condition[J].Fire Science and Technology,2005,24(5):536-538. |
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| Authors: | WEI Dong LIU Ying-hua ZHU Jian-ming |
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| Affiliation: | WEI Dong~1,LIU Ying-hua~2,ZHU Jian-ming~1 |
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| Abstract: | Analyses the elasto-plastic limit state of axially restrained steel beam columns under fire condition on base of the shanley theory,and according to its mechanical model,and builds a new practical formula of limit load under the unevenly temperature field in section,which is not only explicitly mechanical meaning,but it also shows that the velocity of calculation is forthright and the precision of calculated result is very high. |
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| Keywords: | fire steel beam column elasto-plastic analysis calculation |
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