我国目前采用顶推施工法架设的跨度最大的桥梁——包头黄河公路大桥,经过四年的紧张施工,已于10月19日正式通车。这座大桥位于包头市西南十公里处,是万里黄河上的又一座大型公路桥梁。全桥长810米,共有12墩2台13孔,由3联4孔65米等高度的预应力钢筋混凝土连续箱梁组成。跨径组合:[3×(4×65.0)+20.0]米。桥面宽:净9+2×1.5米。设计荷载汽 At present, Baotou Yellow River Highway Bridge, which is the largest span bridge built by China’s top-flight construction method, was officially opened to traffic on October 19 after four years of intense construction. Located 10 kilometers southwest of Baotou City, this bridge is another large highway bridge on the Yellow River. The bridge is 810 meters in length with a total of 12 piers and two 13-holes, consisting of 3-way, 4-hole, 65-meter-long prestressed reinforced concrete continuous box girders. Span combination: [3 × (4 × 65.0) +20.0] meters. Bridge width: net 9 +2 × 1.5 meters. Design load steam