摘要
本文以双三次B样条函数作为位移基函数,应用拉格朗日乘子法,提出了解决各种边界条件下等截面箱型直梁约束扭转问题的计算方法。
In this paper, the cubic B-spline function is used as displacements function to analysis the constrained torsion of the straight single span and continuous uniform box girder in various types of boundary conditions adopted in engineering design. In the end, two numerical results are presented.
出处
《兰州铁道学院学报》
1992年第1期32-39,共8页
Journal of Lanzhou Railway University
关键词
样条函数
有限元
箱型梁
spline function, finite element analysis, box gird, constrained torsion
