Study On Static Behavior And Structural Parameter Sensitivity Of No-backstays Partial Cable-stayed Bridge With Corrugated Steel Webs

No-backstays partial cable-stayed with corrugated steel webs is a new part of the steel and concrete composite bridge. It shows the beautiful appearance modeling, at the same time, takes full advantage of concrete compressive and much more shear strength of the corrugated steel webs. It is a kind of economic and reasonable and efficient structure with combining steel and concrete effectively. For static and dynamic mechanical properties, design, construction of the no-backstays partial cable-stayed bridge in China, there are more research and analysis, but there is a little research and application related to the problems of no-backstays partial cable-stayed with corrugated steel webs. Therefore, it is more significant to do further study and analysis of the structure mechanics behavior and parameter sensitivity on no-backstays partial cable-stayed with corrugated steel webs for the design, construction and promotion about this bridge. The thesis does research on parameters sensitivity analysis about the corrugated steel webs of the no-backstays partial cable-stayed with corrugated steel webs and gets some valuable regulation and guides the design and construction of this bridge.Based on the no-backstays partial cable-stayed with corrugated steel webs named Zhenshui road bridge as the background project, the thesis makes a simulation analysis model by the special software Midas/Civil to bridge and checks the original structure design and determines the key geometrical structure parameters, then does more depth research on sensitivity analysis of these parameters. The mainly works about this article are as follows:1. Making the space finite element model of Zhenshui Road Bridge and completing the simulation analysis on static characteristic of the whole process and checking the original structure design while considering the construction process and the load combination in operation stage. 2. Adjusting the geometric parameter of corrugated steel webs in the finite element model and analyzing the influence of structural mechanics performance when considering these the geometric parameters and getting regular pattern or conclusion.3. Preliminary research and analysis on the overall buckling, local buckling and synthetic buckling of the corrugated steel webs with integrating the space finite element model named Zhenshui Road Bridge.