建筑结构学报2011,Vol.32Issue(10):113-118,6.
波纹腹板H型钢梁受弯承载力性能研究
Bending capacity of H-beams with corrugated webs
摘要
Abstract
To analyze the bending performance of H-beams with corrugated webs,the theoretical analysis was conducted firstly.It is believed that the top and bottom flanges provide the total bending capacity without the contribution of web.The theoretical equation was proposed.Then bending tests of two simply supported beams were conducted.The load-deformation curves,ultimate load and failure mode were obtained.The test results verified the correctness of the mechanical model and the equation.To validate the theoretical model and support the parametric study,the finite-element simulation method was adopted to simulate the bending performance of H-beams with corrugated webs.The ultimate bending moments calculated by two methods are very close,both exceeding the plastic moments by 20%.Through the parametric study,the following conclusions are drawn: denser wave profiles and lesser width-thickness ratio of flanges can provide higher ultimate bending moments;the depth-thickness ratio of the web has no significant effect on the ultimate bending moment.关键词
波纹腹板H型钢梁/受弯承载力/切线模量/腹板高厚比/屈服强度Key words
H-beam with corrugated webs/bending capacity/tangent modulus/depth-thickness ratio of web/yield strength分类
建筑与水利引用本文复制引用
张哲,李国强,孙飞飞..波纹腹板H型钢梁受弯承载力性能研究[J].建筑结构学报,2011,32(10):113-118,6.基金项目
国家科技支撑计划项目 ()
国家自然科学基金项目 ()