论文部分内容阅读
本文详细说明巴西北部托坎廷斯河上的一座重要的结合梁桥。桥全长2340m,铁路公路两用桥。上部结构力长的连续梁,固定桥墩和桥台承受高的制动力,中间桥墩为柔性墩。桥梁横截面为梯形结合箱梁,其上是采用斜撑栓接的公路桥面。桥梁这样设计,是使公路桥面无论何时在不中断铁路运行的情况下也能施工。铁路桥面板为预应力预制构件。在暗销连接前先预加应力。本文简要论述桥梁的主要建筑问题和各种不同的测控工作。
This article details an important composite beam bridge over the Tocantins River in northern Brazil. Bridge length of 2340m, dual-use railway bridge. Continuous beams with long upper structural strength, fixed piers and abutments are subject to high braking forces, and intermediate piers are flexible piers. The cross-section of the bridge is trapezoidal combined with box girder, on which the bridge deck is bolted. The bridge is so designed that the bridge deck can be constructed at any time without interrupting the railway operation. Railway bridge deck prefabricated components. Pre-stressed before the dowel joint. This article briefly discusses the main building problems of the bridge and various measurement and control work.