摘要
通过合理选择箱形截面的参数比值(h/b,h/tw,b/t),导出截面特性的简化表达式,进而由轴心受压构件的稳定条件导出构件长细比λx的方程式,再利用λx方程的解计算出满足稳定性要求的截面尺寸,克服了试算法的缺点,计算简捷,经济合理。
Through the reasonable choice of parameter ratio about box-section,the simplified expression of section characteristic was deduced.The slenderness ratio λx equation was deduced according to the stabilization condition of axial compression members.Then the solution of the λx equation was used to calculate the section dimension to satisfy the stabilization demand.The disadvantage of trial algorithm is conquered and it is simple,economic and reasonable.
出处
《建筑结构》
CSCD
北大核心
2011年第2期59-64,共6页
Building Structure
关键词
轴压构件
箱形截面
整体稳定
局部稳定
控比算法
axial compression member
box-section
whole stabilization
local stabilization
ratio-control arithmetic
