Prestressed Concrete Continuous Rigid Frame-Concrete Filled Steel Tube Arch Combination System Structure Behavior Analysis

The bridge is in the human production and life,for crossing the mountain stream,bad geological or meet the needs of the other transport and erection of buildings make the traffic more convenient.Prestressed concrete continuous rigid frame-concrete filled steel tube arch bridge is a bridge type,combined with the characteristics of the arch bridge with rigid frame bridge,have great spanning capacity,good durability,construction more convenient(without system transformation),good appearance,more resilient,suitable for high valleys,rivers,build soft block),no large support and many other advantages,showing good momentum of development in the bridgedevelopment in the bridge.In this paper,the prestressed continuous rigid frame-concrete filled steel tubular arch bridge as the research object,the bridge beam combination system for structural behavior analysis.This article main research content is as follows:(1)Outlined the development of Chinese arch bridge,types and characteristics of the combination arch bridge,the advantages of the alien-rigid frame arch combination bridge and the existing problems and the engineering background.(2)Prestressed concrete continuous rigid frame-concrete filled steel tubular arch bridge finite element modeling,modeling with reference to the relevant standards and specifications,and the use of related technical indicators,using the relevant materials.In this paper the finite element software Midas Civil simulated bridge three-dimensional modeling analysis and research.(3)Prestressed concrete continuous rigid frame-concrete filled steel tubular arch bridge for static structure analysis,the prestressed concrete continuous rigid frame-the bearing capacity of concrete filled steel tube arch bridge,normal use,transient stress analysis research,and bridge steel box girder stress analysis of arch ring and side beam of the bridge to static analysis.(4)Prestressed concrete continuous rigid frame-eigenvalue analysis concrete filled steel tube arch bridge,the subspace iteration method and the Ritz vector method is used to contrast analysis,and in the presence of concrete-filled steel tube arch bridge under the eigenvalue analysis.(5)Analysis of prestressed concrete continuous rigid frame-after to arch,concrete filled steel tube arch bridge by using response spectrum analysis.In this paper are of certain aliens-rigid frame arch combination bridge with and without steel pipe concrete GongJianMo,analyze the behavior and structure,provide a reference for research of similar Bridges in the future.