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随着我国公路桥梁事业的迅速发展和技术水平的提高,在双曲拱桥的计算中,当考虑了连拱作用之后,不仅使计算结果比较符合实际情况,而且由于桥墩水平推力的减小,可减小桥墩断面,节约水下工作量,争取工期。参改文献[1]中的剪力(推力)集体分配法,对于四孔以下的连拱可求得精确解,但对于四孔以上的连拱,则只能得到近似的解答。本文将剪力(推力)集体分配法加以推广,使其对于任意多孔连拱,均能得到精确解答。
With the rapid development of China’s highways and bridges and the improvement of its technological level, in the calculation of double-curved arch bridges, when considering the effect of double arches, not only does the calculation result conform to the actual situation, but also due to the reduction of the horizontal thrust of piers, Reduce the pier section, save the amount of underwater work, and strive for the duration. The shear force (force) collective distribution method in reference [1] can be used to obtain an exact solution for a multi-arch below four holes, but an approximate solution can only be obtained for a multi-arch with more than four holes. In this paper, the shear force (force) collective distribution method is extended so that it can accurately solve any porous multi-arch.