槽型宽翼受压构件剪力滞分析的传递矩阵法

利用能量变分法，建立了槽型宽翼受压构件考虑剪力滞效应时的平衡控制微分方程，给 出了该方程在轴向均布载荷作用下的初参数解，导出了求解槽型宽翼受压构件内力、应力和 位移的场矩阵和点矩阵，提出一种研究槽型宽翼受压构件剪滞效应的传递矩阵法. 数值算例 表明，该方法计算便捷、精度好、具有较高的工程应用价值.

TRANSFER MATRIX METHOD FOR SHEAR LAG ANALYSIS OF A BEAM-AND-SLAB STRUCTURE UNDER AXIAL LOADS

Based on the energy variational principle,the governing differential equations and the boundary conditions of a beam-and-slab structure under axial loads are derived,with shear lag effect being taken into account.The initial-value solutions of the equations under a uniformly distributed load are obtained.The field matrix and point matrix are derived,by which the inner force,stress and displacement can be recursively calculated.A transfer matrix method for shear lag analysis of a beam-and-slab structure is put forward.The computation example shows that the method proposed in the paper is valid and effective.