摘要
对18根板件中间加劲复杂卷边槽钢简支轴心受压试件进行了承载力试验研究,其中包括有截面形式、试件长度等方面的变化,研究了板件中间加劲对构件承载能力和破坏模式等方面的影响.试验结果表明：板件帽形加劲可以大大提高构件的稳定承载力.与普通复杂卷边槽钢构件相比,在相同条件下采用板件帽形加劲的构件其承载效率提高了大约10%-40%,其破坏模式变为以畸变屈曲为主要控制因素的畸变及其相关屈曲的破坏.同时利用有限元软件模拟相同试件的承载力和破坏模式,与试验结果吻合良好.
A total of 18 simply supported axial compression members with three types of complicated sections were tested. The bearing capacity,buckling mode and deformation behavior of these members were studied. The results showthat cap shaped stiffeners can increase the ultimate load-carrying capacity of loaded members obviously. Compared with channels with complex edge stiffeners under the same condition,members with cap shaped stiffeners can make the ultimate load-carrying capacity be increased about 10% to 40%. Distortional and local interaction buckling became the main buckling modes. Numerical simulations were performed by finite element analysis. The analysis results are in good agreement with experimental data.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2016年第12期1772-1777,共6页
Journal of Northeastern University(Natural Science)
基金
辽宁省自然科学基金资助项目(2015020575)
关键词
复杂卷边槽钢
板件帽形加劲
静力试验
承载力
失稳模式
channel with complex edge stiffeners
element with cap shaped stiffeners
static test
load-carrying capacity
buckling mode
