Study On Arch And Column Structure Of 600m Reinforced Concrete Arch Bridge

Reinforced concrete arch bridge have advantages of good stiffness, high capacity, seismic performance, low maintenance costs and pretty vince. The concstruction technique restricted the development of concrete arch bridge. The trial design of 600 m span concrete arch bridge was proposed in the last century. The plan of 600m- 1000 m super long- span concrete arch bridge was conceptly designed in Janan and China. For the large span concrete arch bridge, the main arch structure and arches columns will influence on the structural configuration, static and dynamic characteristics and construction methods. The following research works were carried out:1) Collectting and organizing domestic and foreign large span concrete arch bridge reference dat about span ratio, arch axis coefficient, the main arch-section, Arch building construction.It will provide reference and comparative analysis for the 600 m level Main Arch reinforced concrete arch architectural research and design parameters.2) Exploring the 600 m level reinforced concrete arch bridge on the main arch crosssection, span ratio, arch axis coefficient by ANSYS finite element software. Analysising of the influence of main arch internal force, Stability factor, Displacement. And then Getting reasonable range of design parameters on this basis.3) Selectting T structure + rigid bridge + Rigid column continuous beam structure, exploring the 600 m level reinforced concrete arch bridge belly hole span, column and main girder connections, analysising different abdominal hole span, different column and the main beam connection to the primary arch about the influence of the column and obtain reasonable range of design parameters.4) Using the language APDL command optimization arch axis to achieve maximum value of minimum eccentricity, eccentricity maximum arch axis coefficient optimization arch cross-section approach.