铁路曲线地段跨越河川山谷或与其他交通设施等交叉的情况是很多的,均需设置曲线桥梁。我国铁路目前采用的曲线桥梁都是按折线进行布置的,即所谓“曲线直梁”。这种方法的优点是设计理论简单,计算方便,除了适当加强梁体截面外,外形可与直梁一致。因此,在制梁的生产工艺和架梁方法上与直梁无多大差别,机具设备也可通用,为此已成为我们的习惯做法。但是 There are many situations where the curved section of a railway crosses river valleys or intersects with other transport facilities. Curved bridges are required. The curves of bridges currently used in China’s railways are arranged according to the broken line, that is, the so-called “curved straight beam.” This method has the advantage of simple design theory, easy to calculate, in addition to properly strengthen the beam cross-section, the shape can be consistent with the straight beam. Therefore, the beam beam production process and girder beam method and the beam is not much difference, machinery and equipment can be universal, this has become our custom. but