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工程概述南河特大桥位于太原～澳门国道主干线山西省晋城至河南济源段,是跨越南河谷地的一座特大桥梁。主桥桥式为(40+120+3×180+100)m六跨一联预应力混凝土连续刚构+连续梁的结构形式,桥长800m。主梁采用斜腹板的预应力混凝土箱梁,箱梁为单箱单室断面。箱梁顶面横坡与线路横坡一致,为双向2%横坡;箱梁底面水平。箱梁顶板宽为24.5m,底板宽度由8.656m渐变到11.408m,悬臂长6m。合龙段处箱梁中心高度
Project Overview Nanhe Grand Bridge is located in Taiyuan ~ Macao National Route main road from Jincheng in Shanxi Province to Henan Jiyuan, is a large bridge across the South River valley. The main bridge is a structure of (40 + 120 + 3 × 180 + 100) m six span of prestressed concrete continuous rigid frame + continuous beam, the bridge length 800m. The main girder is inclined web of prestressed concrete box girder, box girder single box single chamber section. The top of the box girder is consistent with the line cross-slope, which is 2% cross-slope in both directions; the bottom of the box girder is horizontal. The roof width of the box girder is 24.5m, the width of the floor is gradually changed from 8.656m to 11.408m, and the length of the cantilever is 6m. Closure section box girder center height