Force Analysis Methods and Experimental Research on Double-Curved Arch Bridge

Research on section conversion of main arch ring and computation theory of lateral distribution in double-curved arch bridge. Through analyzing load experimental data of ShuiWen bridge, it demonstrates that the plane system finite element method is simple and practical compared to three-dimensional physical model in double-curved arch bridge computation, and the accuracy meets the design requirement. To double-curved arch bridge with spandrel arch, it can put loads distribute averagely on main arch ring to compute, the result is security without regard to joint action of above arch structure.