钢-混组合梁与预应力混凝土预制箱梁上部结构及桥型方案比选

Comparison and Selection on Superstructure and Bridge Type Schemes of Steel-concrete Composite Girder and Pre-stressed concrete Prefabricated Box Girder

以实际工程G1816乌海至玛沁国家高速公路景泰至中川机场段施工图为背景,结合同类项目实施的成功经验,结合工期、安全和造价等综合考虑,同时为贯彻国务院关于化解钢铁行业产能过剩的相关文件精神,对钢-混组合梁与预应力混凝土预制箱梁两种桥型方案比选。

Based on the background of the construction drawings of the practical project G1816 from Wuhai City to Jingtai,Maqin National Expressway to Zhongchuan Airport,combined with the successful experience of similar projects,hy comprehensively considering the time limit for project,safety cost,and also in order to carry out the relative documents of resolving the excess production capacity of iron and steel industry,two bridge type schemes of steel-concrete composite girder and the pre-stressed concrete prefabricated box girder are compared and selected,which provide the technical reference for the bridge schemes under the similar construction conditions.