The particle route method is produced for the shear force diagram drawing of multi-span beam based on the geometric principle of the force addition.
基于力的合成的几何法原理，提出了绘制多跨梁剪力图的质点路线法。
This method may be used as a solution for a multi-span beam with variable cross section under conditions of various kinds of loads, supports and junctions.
此法可用于求解在各种载荷、支承及联接条件下的变截面多跨梁。
This method can not only be used to draw shear force diagram quickly, but also to determine the shear sign automatically, and to verify the reaction force of multi-span beam.
该方法不但能快速绘制剪力图，而且自动确定剪力符号，兼可对多跨梁的支座反力进行校核。
Moreover, the change tendencies of the frequencies of the multi span beam with the gaps are studied.
得到了静水中多跨梁的固有频率随间隙值的变化规律。
Thus, when reinforcing the multi-span simply-supported T-beam by this method, enhancing the shear resistance of beam at intermediate support must be conducted yet.
建议在采用此方法加固多跨简支T梁的同时应对中间支点梁的抗剪能力进行加固。
The effect of different mathematical models on lateral vibration analysis of multi-span simple beam bridge is discussed in this paper.
讨论了铁路多跨简支梁桥不同计算图式对横向振动分析结果的影响。
Calculating the continuous beam, frame of single-span and multi-story by deflection method, the stiffness matrix is symmetrical three-diagonal.
用位移法计算连续梁、对称性荷载作用下的单跨多层刚架，总刚度阵为对称三对角阵。
Calculating the continuous beam, frame of single-span and multi-story by deflection method, the stiffness matrix is symmetrical three-diagonal.
用位移法计算连续梁、对称性荷载作用下的单跨多层刚架，总刚度阵为对称三对角阵。
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