Structural research on high-pressure welted bifurcation composed of inner steellining and outer reinforced concrete

摘要

There is no practical example of the bifurcation composed of inner steel lining and outer reinforced concrete in China. A structural model of this type welted bifurcation with 0.25-scale is tested to study the strength and deformation characteristics of steel lining, reinforcement and concrete under high internal water pressure. For the whole structure, the ultimate bearing capacity and ultimate degree of safety are also discussed. The referential basis for practical projects is provided.