Abstract
Compared with concrete bridges, steel-concrete composite structure bridges have lighter dead load and lower beam height, which can better adapt to the longitudinal alignment of the route. Therefore, it has great application and promotion value in bridge reinforcement, reconstruction or expansion projects in which the upper structure is removed and the original lower structure is retained. This article introduces the application examples of fast-replaceable steel-concrete composite structure bridges in engineering, and introduces in detail the key contents of the bridge structure, such as structural dimensions, construction methods, and construction periods, which can provide references for the implementation of such projects.
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