铰接板梁桥载荷横向分布影响线计算方法

Method of calculation of transverse load distribution influence line for an articulated slab girder bridge

根据铰接板理论和结构力学基本原理,从任意一条梁作用单位荷载出发,认为铰接板梁计算图式有3个,应该按单位力p作用的第i块梁的左侧任意块、第i块梁和右侧任意块的铰接缝分别讨论,建立了铰接板桥梁基本体系的载荷横向分布影响线的最一般方程,退化到边梁作用单位荷载的情形结果是正确的.利用这些方程可以方便进行不同截面形式、不同板梁数量的铰接板桥的设计和计算,使得铰接板理论更加完整.

From the articulated slab girder theory and fundamental of mechanics of structures, loading a unit-load onto a girder, three analytical models must be taken to set up the theory that one is rabbet on the left of the girder, one on the right and the rest on the girder. General equations and method of calculation of transverse load distribution influence lines are given for the articulated slab girder bridge system, which can be generated to two side girders correctly. With those, it is convenient to design and calculate an articulated slab -girder bridge with different section forms or the different numbers of slab girder so as to make the aticulated slab theory more perfect.