摘要
采用考虑剪切变形的8节点曲壳单元离散波纹钢腹板,并用有限元方法进行非线性剪切屈曲分析。分析中采用一致缺陷模态法和引入钢板厚度缺陷分布函数的方法进行波形尺寸缺陷和钢板厚度缺陷的模拟。在此基础上研究了波纹形状、腹板整体外形尺寸和钢腹板厚度等因素对波纹钢腹板剪切屈曲极限荷载和屈曲模态的影响。
The shear bucking mode and ultimate shear capacity of corrugated steel webs are analyzed by nonlinear finite dements method. The corrugated webs are simnlated by 8-node structure shell element. The simulations of corrugation configuration and web thickness imperfections are discussed firstly. The corrugation configuration imperfections are simnlated by uniform imperfections mode method. The steel plate thickness imperfections are simnlated by thickness distribution function. On this basis, the influences of corrugation configuration, the overall dimensions and steel thickness of corrugated webs to ultimate shear bucking load and buckling mode are investigated.
出处
《公路交通科技》
CAS
CSCD
北大核心
2005年第11期89-92,共4页
Journal of Highway and Transportation Research and Development
基金
交通部西部交通建设科技资助项目(200431822315)
关键词
波纹钢腹板
剪切屈曲
初始缺陷
影响因素
Corrugated steel webs
Shear buckling
Initial imperfection
Influence factors
作者简介
宋建永（1977-），男，内蒙通辽人，博士，主要从事预应力组合结构研究．
