变截面梁：在弯矩较大处采用较大的截面，在弯矩较小处采用较小的截面。这种截面沿轴线变化的梁，称为变截面梁。
变截面梁元 tapered beam element
In this paper, an FEM program is developed for the portal frames with the tapered columns and beams. The tapered beam element is used hi the FEM.
本文开发了一套变截面梁单元有限元分析程序，可对变截面门式刚架结构体系进行精确的静力计算与平面内稳定性分析。
参考来源 - 变截面山形门式刚架稳定性有限元分析·2,447,543篇论文数据，部分数据来源于NoteExpress
提出了考虑剪切变形时变截面梁弯曲和稳定计算的传递矩阵法。
The transfer matrix method for the bending and stability of the variable section beams with shear deformation is presented.
在建立有限元模型中，广泛采用变截面梁和异型梁是本模型的一大特色。
Taper section and custom section beams are widely adopted in the process of model set-up, which is a feature of this paper.
导出了变截面梁单元的单元刚度矩阵、单元等效节点荷载和单元一致质量矩阵。
The stiffness matrix, equivalent nodal load and consistent mass matrix are derived for the beam element with variable cross-section.
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