Abstract:Urban bridges not only need to meet the basic traffic demand, but also their architectural forms should conform to the landscape coordination of the construction environment. Due to its excellent structural stress and light and beautiful shape, special-shaped arch bridges are mostly used as the main bridge types for urban landscape bridges. Based on the structural characteristics and construction technology of Shenzhen Meng-hai Qian-wan River Bridge, this paper introduces the key technologies of a beam-arch combined system bridge to ensure the alignment, stress, suspender force and temporary support safety of the main girder and special-shaped arch rib in the prefabrication and installation stages, and guides the whole process of construction monitoring through spatial finite element analysis. According to the measured data, the error of bridge alignment and suspender force is within the allowable range, the construction accuracy is good, and the landscape effect has also reached the expected goal.
