Tied Arch Bridge Structure System

Started from the introduction of the origins ^ the development process ^ the latest research and its trend of the tied-arch bridge, this paper focuses firstly on the distinguishability of different structural styles of the tied-arch bridge and the analysis of the mechanical behaviors of each type. The lateral stability and the mechanical behaviors of the vertical or inclined hanger tied-arch bridge are also analyzed in this paper.Since there are some defects in the traditional analysis method of cross beam, this paper also introduces a new method which calculates the inner forces of the cross beam considering the compatibility of deformation. Then, this paper presents a program used to analyze the cross beam with MATLAB. To validate this new method and the analysis program, this paper calculates an actual tied-arch bridge with ANSYS and the new program presented in this paper. The results proved that this method and program are convincible and accurate, and also suitable for the practical engineering design.Finally this paper studies the construction control theory and its method with the construction control project of the Jiefang Bridge in Guilin. The Jiefang Bridge is the first one with sunflower-sharp reinforced concrete tied-arch bridge. Now, this bridge is successfully completed and opened to traffic under right construction control.