丹东沙河口大桥是一九八二年末建成的国内最大跨度的钢筋混凝土中承式、无横风撑、无铰拱桥。施工中,采用了半刚性骨架、锚索加载法(亦称埋入式拱架法)。它是用角钢拼制成半刚性龙架,作为结构的钢拱架(劲性钢筋),整体吊装就位,再在这个骨架上搭设吊架,支立模板。浇注混凝土时,用锚索加载的新方法控制拱轴线变形。 Dandong Shahekou Bridge is built in late 1982, the country’s largest span of reinforced concrete bearing, no cross-bracing, no hinge arch bridge. Construction, the use of semi-rigid skeleton, anchor loading method (also known as embedded arch method). It is made of angle steel semi-rigid truss frame, as the structure of the steel arch (stiff reinforcement), the overall lifting in place, and then set up in this skeleton hanger, Li Li template. In the pouring of concrete, a new method of cable loading is used to control the deformation of arch axis.