【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。更多还原

【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.更多还原