摘要
运用能量变分法最小势能原理推导了系统的总势能表达式,然后通过变分法,假定不同的位移函数得到带有不同边界条件的一组微分方程,最后对等截面箱梁剪力滞效应进行了研究.
The minimum potential energy principle of variational method is used to deduce the formula of system potential energy.A set of differential equations with differential boundary conditions are obtained through using variational method,and the impact of shear lag effect in Thin-walled box girder is studied.
出处
《兰州工业高等专科学校学报》
2012年第1期52-54,共3页
Journal of Lanzhou Higher Polytechnical College
关键词
薄壁箱梁
剪力滞
变分法
thin-walled box girder
shear lag effect
variational method
