寒冷地区中等跨径连续钢箱梁桥设计分析

Design and Analysis of Medium-span Continuous Steel Box Girder Bridge in Cold Area

针对寒冷地区中等跨径连续钢箱梁桥,分别按7.5 cm沥青混凝土铺装方案和10 cm水泥混凝土+10 cm沥青混凝土组合铺装方案进行设计,分析钢箱梁用钢量指标随桥梁跨径、箱梁梁高的变化规律;研究寒冷地区钢箱梁桥采用组合铺装后,钢箱梁用钢量指标变化情况,以期为寒冷地区中等跨径钢箱梁桥的设计提供参考.

The medium-span continuous steel box girder bridge in cold area is designed according to 7.5 cm asphalt concrete pavement scheme and 10 cm cement concrete+10 cm asphalt concrete composite pavement scheme respectively.The change law of steel consumption index of steel box girder is analyzed with bridge span and box girder height.The change of steel consumption index of steel box girder is studied after the composite pavement is adopted for steel box girder bridge in cold area.The reference is provided for the design of medium-span steel box girder bridges in cold regions.