摘要
研究了截面形心和剪切中心重合的多弹性扭转支承开口薄壁杆在轴向压力作用下的扭转屈曲,把作用在开口薄壁杆上的弹性扭转支承去掉,代之以相应的未知扭矩,采用Laplace变换推导出了其扭转变形的位移函数,并求得了多弹性扭转支承开口薄壁杆在轴向压力作用下扭转的屈曲特征方程。
It was studied that the torsional buckling of thin-walled open section members under axial load with multiple elastic torsional support whose sectional center and shear center is superposition. With conresponding unknown torsion being replaced elastic torsional supported acting on thin-walled open section members, the displacement function was gained with Laplace Transformation, then the torsional buckling characteristic function of thin-walled open section members under axial load was gained .
出处
《四川建筑科学研究》
北大核心
2007年第5期37-39,共3页
Sichuan Building Science
基金
湖南"十一五"重点建设学科资助项目
关键词
扭转支承
薄壁杆
屈曲
torsional supported
thin-walled members
buckling
