整浇装配式体外预应力桥梁设计方案及有限元分析

Urban bridge construction takes a long period has brought traffic congestion and environmental pollution as still used backward technology in china. It has become a major problem to restrict economic and social development. To accelerate the urban bridge construction, ease traffic congestion and reduce environmental pollution, a scheme of fabricated bridge with external prestressing and integral casting-in-place deck was presented in this paper. The bridge can be produced in a factory and assembled on construction site and has the advantages of fast construction speed and low environmental pollution. As the integral casting-in-place deck was used in the bridge, the problems of leaking between precast element joint and poor structural integrity have also be solved. According to the current bridge design codes, the bridge is designed and is analyzed with ANSYS software. The results show that the bridge is reasonably practicable and the related conclusions can be used and referenced for designers.