| 火灾环境下具有弹性支座钢构件的稳定性能 |
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| 引用本文： | 孙强,陆守香.火灾环境下具有弹性支座钢构件的稳定性能[J].中国安全科学学报,2004,14(2):20-23. |
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| 作者姓名： | 孙强 陆守香 |
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| 作者单位： | 1. 中国科技大学火灾科学国家重点实验室;安徽建筑工业学院土木工程系
2. 中国科技大学火灾科学国家重点实验室 |
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| 基金项目： | 国家自然科学基金重大国际合作研究项目资助(50320120156),国家重点基础研究专项经费资助(2001CB409600),国家社会公益研究专项资金资助(2001DIA40035),中国博士后基金资助(2003033394),安徽省教育厅自然科学基金资助(2004KJ099),安徽省优秀青年科技基金资助(0 |
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| 摘 要： | 根据弹性稳定理论原理研究了具有弹性支座钢结构构件在火灾环境下的静力特性问题 ,导出了高温下钢构件的静力稳定临界荷载和长度计算式 ,并讨论了温度、杆件的侧向弹簧刚度、杆长、保护层厚度等因素对杆件静力稳定临界荷载和长度的影响 ,分析表明 ,杆件的侧向弹簧刚度、杆长、保护层厚度对杆件的稳定承载力影响较大 ,并探讨了在实际工程中如何减小结构失稳的问题。
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| 关 键 词： | 钢结构 高温环境下 弹性支座 静力稳定长度 弹性稳定理论 |
| 修稿时间： | 2003年9月1日 |
Stabilizing Performance of Steel Members with Elastic Support under Fire Condition |
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| SUN Qiang ,Prof. LU Shou-Xiang.Stabilizing Performance of Steel Members with Elastic Support under Fire Condition[J].China Safety Science Journal,2004,14(2):20-23. |
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| Authors: | SUN Qiang Prof LU Shou-Xiang |
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| Institution: | SUN Qiang 1,2,Prof. LU Shou-Xiang1 |
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| Abstract: | Problems of static force of steel structure members with elastic support under fire were studied by elastic stability theory. The calculation formulas for critical length of static force stability of steel structure members under fire are derived. The effects of temperature, spring stiffness, length of members, thickness of protection layer etc were discussed. Analysis showed that the spring stiffness, length of members and thickness of protection layer exerted bigger impact on stability bearing capacity. Some suggestions are given for structure destabilizing in engineering project. |
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| Keywords: | Steel structure Under high temperature Static force character Length of static force stability Elastic stability theory |
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