摘要
研究了偏心支撑钢框架在极限状态下消能梁的屈服机制和破坏机构及其消能,建立了偏心支撑钢框架极限状态的计算假定,利用机动法分别建立偏心支撑钢框架的极限承载力方程,推导出极限承载力公式,分析了竖向荷载和二阶效应对结构极限承载力的影响。本文公式具有简单、实用与精确度高的特点。
The yield mechanisms, failure mechanism and dissipation of active beam are analyzed in plastic limit state of eccentric brace steel frame and the calculating assumptions are presented. Some equations on plastic ultimate load-bearing capacity for EBF are established by using mechanism method ; some formulas for the ultimate load-bearing capacity are presented and the influence of vertical load and second order effect on the ultimate load-bearing capacity is analyzed. The formulas are simple, practical and accurate.
出处
《建筑科学》
北大核心
2007年第7期1-3,共3页
Building Science
关键词
极限承载力
偏心支撑框架
消能梁
ultimate load-bearing capacity
eccentric brace frame （EBF）
active beam
