Composite arch bridges developed in China

This paper mainly describes the development of composite arch bridges in China. Three types will be demonstrated. The first is solid arch ribs composed of steel and concrete, second is arch truss ribs with their chord members composed by steel pipes and concrete, and third is reinforced concrete arch ribs or ring supported by composing arch truss structures in the construction and reinforced by the same one after completion. All these arch bridges are very successful, especially for the longest span RC arch bridge in the world.