城际轻轨大跨度预应力连续梁桥初步设计

The primary design for the light rail large-span prestressed continuous girder bridge between cities

结合某大桥设计实例,介绍了其结构尺寸、施工及成桥阶段的内力计算和组合、纵向预应力钢筋的设计和布置,并对施工和运营阶段的截面正应力进行了检算,实践证明了该设计选用大跨度预应力连续梁桥的可行性。

Combining the design example of some bridge, the paper introduces the structure sizes, its construction, the calculation of its internal forces and its composites, as well as the longitudinal prestressed concrete design and the layout, and checks the cross-sectional normal stress at the construction and running stages. It is proved that the design to choose large-span prestressed continuous girder bridge is feasible.