摘要
针对我国现行钢结构设计规范[1]存在的框架柱平面内整体稳定验算的不足,提出了改进建议[2]。利用单层和3层钢框架的有限元分析结果,对现行规范方法和本文建议方法在内力计算与框架柱平面内整体稳定验算和截面强度进行了详细比较,对本文建议方法的精度与可行性进行了评价。
In order to overcome the limitations of the current design code, such as the analysis methods of the internal forces and the effective length method used in stability of steel columns, one modified elastic methods based on design code method for analysis and check for limit state strengths of steel frames are outlined. In this paper,the results from a comprehensive set of portal frames and three- storey frames are summarized to establish the accuracy and validity of these two approaches for evaluation of the maximum strength of steel framing columns. Comparisons are made to results from rigorous distributed plasticity of analyses.
出处
《四川建筑科学研究》
北大核心
2007年第3期1-3,共3页
Sichuan Building Science
关键词
框架柱
结构设计
钢框架
结构稳定
计算长度
设计规范
建议方法
frame columns
building design
steel frames
structural stability
effective length
design code
modified approach
