Study On Detection And Strengthening Technology Of RC Arch Bridge

Bridges are one of the facilities of transportation. With the development of traffic and the advancement of technology, the detection of bridge is considered to be more and more important. Its main signification expresses in the applications as follows: assess of actual carrying capacity of existing bridges, foundation of technical information of bridges, and developments of the assess theories of old bridges and design theories of new bridges. For evaluating the actual loads and safety factors of the existing bridges and adopting rational remedy methods, it is necessary to detect the damage, abnormalities as early as possible, and assess the degree of the structural damage. Since 1940s, finite element method (FEM) gradually holds the important roles in scientific research and engineering analysis.RC arch bridges are widely used in our country. In details, this paper discusses the principle, method and content of structural detection of RC arch bridge. At the same time, the author takes one RC arch bridge as the example, and exposes its factual results of detection. Finally, it offers several methods of strengthening existing RC arch bridges.