analysis and design of three span suspension bridge using midas civil

State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai, China ĭepartment of Bridge Engineering, Tongji University, Shanghai, China. Three-tower suspension bridge steel truss girder mechanical performance parametric analysis finite element analysis The findings from this paper can be used for design of three-tower suspension bridges with steel truss girders. Comparative study of analysis & design of long-span suspension bridge using software sap-2000, Midas civil, ansys with different hangers configuration has. However, the girder stiffness is shown to be of minimal significance on the mechanical performance. 1 shows the elevation view of this bridge. This will be the first three- tower suspension bridge with steel truss girders in the world. And decreasing the sag-to-span ratio is an effective way to reduce the horizontal force subjected to the midtower and improve the antiskid safety of the main cable, while the vertical stiffness of the bridge will be reduced. Oujiang River North Estuary Bridge is a three-tower four-span suspension bridge with steel truss girders under construction in Wenzhou, China. It is found that a relatively small side-main span ratio seems to be quite appropriate from the perspective of mechanical performance. The mechanical performance study and parametric analysis are conducted based on a validated three-dimensional spatial truss finite element model established for the Oujiang River North Estuary Bridge using MIDAS Civil. This will be the first three-tower suspension bridge with steel truss girders in the world. For this purpose, the Oujiang River North Estuary Bridge which is a three-tower four-span suspension bridge with two main spans of 800m under construction in China is taken as an example in this study.

This paper aims to study the mechanical performance of three-tower four-span suspension bridges with steel truss girders, including the static and dynamic characteristics of the bridge system, and more importantly, the influence of structural parameters including the side-main span ratio, sag-to-span ratio and the girder stiffness on key mechanical indices.

Analysis and design of three span suspension bridge using midas civil