摘要
K形、V形偏心支撑钢框架在设计、制作、用钢量等方面都较为接近,但结构特性有所不同。设计了K形、V形偏心支撑钢框架典型算例各20个,采用显式有限元工具建立数值模型,利用基于位移模式的Pushover方法对结构进行推覆分析,对比了两种体系在极限水平变形、耗能能力和极限承载能力方面的不同并分析了原因,得出了V形偏心支撑钢框架性能优于K形偏心支撑钢框架的结论,建议在设计中优先选用V形偏心支撑钢框架。
The design,fabrication and steel consumption of eccentrically braced steel frames（ EBSFs） with K-shape braces and those of EBSFs with V-shape braces are similar,but their structural properties are different. Forty EBSFs（ 20 with K-shape braces,20 with K-shape braces） were designed in this paper.Explicit numerical models were built and pushover analyses were performed. The differences in the maximum horizontal deformation,ultimate bearing forces and energy-dissipating capacity were discussed. The conclusion is that the EBSFs with V-shape braces show more excellent structural properties than those with K-shape braces,and should be the first choice in design.
出处
《结构工程师》
北大核心
2015年第5期89-95,共7页
Structural Engineers
基金
城乡和住房建设部资助项目(2014-K2-038
2014-K1-041
2013-K2-23)
