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Abstract:
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To reduce the use of farm land, protect the ecological balance and avoid bad foundation, the bridge applied to China High-speed railway is in larger proportion. The spanning capacity of bridge is crucial when across rivers and other obstacles, as a result, long-span continuous arch bridge becomes one of the feasible schemes. Continuous composite arch bridge as a new structure is composed of different type of structures such as continuous beam bridge, arch bridge and composite structure. The beam-arch combined structure possess the advantages of bearing load, the good stiffness of the structure, less height of architecture and mature construction methods, and this type of bridge will become one of the most competitive bridges in the future. This paper reviews the application of continuous beam arch composite bridge and explains the designing characteristics of China High-speed Railway, including design parameters, Mechanics, aesthetics and traffic. In addition, taking the continuous beam-arch combined structure of the Songhua River Bridge and Sandy Bay Waterway Bridge as the research background, the introduces were done in detail on the beam-arch combined structure, including the design parameters, structure styles, construction technology and key technology of high speed railway continuous beam arch bridge for providing the reference to the similar works.
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