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风陵渡黄河公路桥于1994年11月建成通车,大桥全长1406.94m。上部结构为预应力混凝土连续箱梁,主孔桥9孔一联,边孔桥5孔一联,桥上仅设一道伸缩缝。桥型协调美观、整体性好。大桥按地震烈度8度设防,在抗震设计中采取在活动支座墩上设置抗震梢,并按多墩分配水平地震力,以改善固定支座受力状况。根据工程地质情况,按发生地震时最危险滑动面确定桥台桩的自由长度,以求安全、经济、合理。
Fenglingdu Yellow River Highway Bridge was opened to traffic in November 1994, the bridge length of 1406.94m. The superstructure is a prestressed concrete continuous box girder, with one main hole 9 holes and one side hole bridge 5 holes. There is only one expansion joint on the bridge. Bridge type beautiful, overall good. The bridge is fortified at an earthquake intensity of 8 degrees. In the seismic design, anti-seismic tips are to be set on the movable support pier, and the horizontal seismic force is distributed according to multiple piers to improve the force-bearing status of the fixed support. According to the engineering geological conditions, the free length of the abutment pile should be determined according to the most dangerous slip surface during the earthquake so as to be safe, economical and reasonable.