高温环境下钢压杆受轴向动载作用时的稳定性  

The Stability of Steel Compressed Members Under Axial Dynamic Loading at High Temperature

作　　者：孙强[1] 

机构地区：[1]安徽建筑工业学院土木工程系,合肥230022

出　　处：《武汉理工大学学报》2006年第6期62-65,共4页Journal of Wuhan University of Technology

基　　金：安徽省优秀青年科技基金(04044057);安徽建筑工业学院博士后基金;安徽省教育厅自然科学基金(2004Kj099)

摘　　要：基于结构弹性稳定理论原理,导出了高温环境下钢结构构件在轴向动力荷载作用时发生横向共振的动力稳定荷载的计算式,分析了不同杆端约束、杆件长细比、杆件尺寸、阻尼力和激振频率等参数对杆件动力稳定性的影响,进一步提出了在实际工程中如何减小杆件振动的有关措施,可为高温环境下钢结构工程设计与分析提供参考依据。Based on principle of elasticity stability of structure, the calculating formulas for dynamic stability load of steel structure members on high temperature condition under axial dynamic load were conducted. The influence of dynamic stability of end of differ restrict of rod, length thin ratio, size of rod, damping force and exciting frequency etc were studied. How to reduce vibration respect steps of members in practical engineerong was raised. It provided some references for the value on high temperature condition in steel structure engineering.

关 键 词：动力稳定性 高温环境 激振参数 临界荷载 弹性稳定理论 

分 类 号：TU311[建筑科学—结构工程]