| 高温下具有弹性支座钢构件的动力稳定荷载 |
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| 引用本文： | 孙强,吴经纬.高温下具有弹性支座钢构件的动力稳定荷载[J].华北水利水电学院学报,2010,31(5):9-12. |
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| 作者姓名： | 孙强 吴经纬 |
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| 作者单位： | 1. 安徽建筑工业学院土木工程学院,安徽,合肥230601;中国科学技术大学,火灾科学国家重点实验室,安徽,合肥,230026
2. 安徽建筑工业学院土木工程学院,安徽,合肥230601 |
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| 基金项目： | 国家自然科学基金项目，中国科学技术大学火灾科学国家重点实验室开放课题，安徽省教育厅自然科学基金重大项目 |
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| 摘 要： | 根据弹性稳定理论原理研究了弹性支座钢构件在高温环境下的动力特性问题,导出了高温下杆件的动力稳定临界荷载计算式,并讨论了保护层厚度、长细比、阻尼、材料特性等因素对杆件动力稳定临界荷载的影响,探讨了在实际工程中如何减小结构失稳的问题,可为钢结构抗火设计提供参考.
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| 关 键 词： | 钢结构 高温环境下 弹性支座 动力稳定荷载 弹性稳定理论 |
Critical Load of Dynamic Stability of Steel Structure Members with Elastic Support Abutments in High Temperature Conditions |
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| SUN Qiang,WU Jing-wei.Critical Load of Dynamic Stability of Steel Structure Members with Elastic Support Abutments in High Temperature Conditions[J].Journal of North China Institute of Water Conservancy and Hydroelectric Power,2010,31(5):9-12. |
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| Authors: | SUN Qiang WU Jing-wei |
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| Affiliation: | 1 (1.State Key Laboratory of Fire Science University of Science and Technology of China,Hefei 230026,China;2.College of Civil Engineering of Anhui Institute of Architectural and Industry, Hefei 230601,China) |
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| Abstract: | The problems of dynamic character of steel structure members under the fire state are studied by the elasticity stability theory.The calculating formulas for critical load of dynamic stability of steel structure members in fire conditions are conducted,and the effects of insulation thickness,ratio of length and thin,damping,material character,etc.on the critical load are studied.How to reduce the structural instability of members in practical projects are discussed.It is hoped that these may prove to be some value in steel structure resist fire design. |
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| Keywords: | steel structure in high temperature condition elastic support abutment critical load of dynamic stability elasticity stability theory |
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