【摘要】 文章以薄壁曲杆理论为基础,合理地假设了三个剪力滞翘曲位移函数,应用能量变分法推导出考虑曲率半径影响、弯、扭、剪力滞耦合的曲线箱梁弹性控制微分方程及其边界条件,为薄壁大曲率箱梁剪滞效应建立了理论分析基础。更多还原

【Abstract】 Based on the theory of thin-walled curved bar,reasonable hypothesized a third-ord parabolic curve,the paper adoptes variational method on energy,taking the coupled relationship of the effect of curvature radius,bend,torsion and shear-lag into consideration,establishes the elastic governing differential equation and boundary conditions for thin-walled curved box girders,which set the foundation of theoretical analysis of shear-lag effect in thin-walled curved box girders.更多还原