借助与桁架对应的梁的剪力图和弯矩图根据两个关系式可直接求出一般平面平行弦桁架任一根杆件的轴力。
For a complanate parallel chords truss, the axial forces of a member can be solved by the shear-diagram and two simple expressions.
介绍了一种用剪力图和弯矩图求平面平行弦桁架内力的关系式，并利用截面法给出了相应的证明。
By means of the shear-diagram and the bending-diagram, the expressions of the internal forces in the members of the truss are introduced and demonstrated by the cross-section method in this paper.
“盆式”沉降使上部框架梁主要受剪力和弯矩作用，框架柱主要受轴力和弯矩作用。
The beams are principally suffered with moment and shear force and the columns principally suffered with moment and axial force under basin-shaped settlement.
“盆式”沉降使上部框架梁主要受剪力和弯矩作用，框架柱主要受轴力和弯矩作用。
The beams are principally suffered with moment and shear force and the columns principally suffered with moment and axial force under basin-shaped settlement.
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