高温环境下钢柱动力位移与动内力的解析法  

Analytical method research on dynamic displacement and internal force of steel column at high temperatures

作　　者：张红亚[1,2] 孙强[2] 

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009 [2]安徽建筑工业学院土木工程学院,安徽合肥230022

出　　处：《中国科学技术大学学报》2011年第3期238-243,共6页JUSTC

基　　金：安徽省自然科学基金(090415217);安徽省教育厅自然科学基金重点项目(KJ2008A141)资助

摘　　要：根据非线性振动理论和钢结构抗火原理,就钢柱动力位移的渐进解法进行了探讨.导出了高温环境下钢柱的动力位移的解析表达式,并给出了近似解,分析了激振参数和热参数对钢柱动力性能的影响,得出了考虑热效应时钢柱的动内力计算公式.The problems of approximate results of dynamic displacement of the steel column were discussed by non-linear vibration and structure fire-resistant theory.The approximate results of dynamic displacement on steel column were derived and effects of excitement and temperature parameter on the dynamic performance of the steel column were studied.The calculating formulas of the acting internal force of the steel column were derived.

关 键 词：钢柱 动力位移 渐进解 激振参数 动内力 高温环境 

分 类 号：TU311[建筑科学—结构工程]