Abstract: For making use of the characteristic of a formal resemblance between the influence line of the transverse load distribution and the transverse deflection curve in the hinged girder under a concentrated unit loading,a simple analysis formula for calculating the influence line of the transverse load distribution in the hinged girder is derived with the help of the finite difference method in this paper.This method not only has the function of the present computing tables,but also it may be applicable to the structure with an arbitrary number of the hinged girders which are difficult to be solved by the present computing tables.

摘要： 本文利用了铰结梁荷载横向分布影响线与单位荷载作用下横桥方向挠度线形状相似特性,采用有限差分法导出铰结梁横向分布影响线的简单解析表达式。它不仅具有现有表格的功能而且能适用于现有表格无法求解的任意梁数的铰结结构。