Research On The Structural Parameter Of Self-anchored And Single-tower Suspension Bridge

Self-anchored and single-tower suspension bridge is more and more popular for its beautiful type of line, new look and smart address.To make sure that the self-anchored and single-tower suspension bridge is safe during its construction and operation period, and make the design of bridge more economic and reasonable. Combine with practical engineering, this paper researched the influence between variation of structural parameter to the structural static and dynamic character. Concrete work is as the following:(1)Based on the finite displacement theory and the characteristics of Self-anchored and single-tower suspension bridge, and considering the nonlinear factors. A span of 39.64m+5×40m+30m+350m+30m+29.60m independence of the self-anchored suspension bridge tower carried out a detailed analysis. Through the variation of the vector cross-over cable, arch and stiffening of beam camber, the influence between variation of structural parameter to the structural static and dynamic character are researched.(2) Based on the finite element theory, the 3D dynamic model of the self-anchored and single-tower suspension bridge is set up. Through the constant change its dead load, stiffening stiffness and tower stiffness, its vibration characteristics were analyzed.(3) In the finite element model on the basis of the self-anchored and single-tower suspension bridge, various structural constraint systems for static and dynamic calculation, Comparison of the binding structure of the bridge.(4) Seismic design from the perspective of self-anchored single-tower suspension bridge structural constraint system was analyzed. Focusing on a more appropriate long-span suspension bridge seismic structure, tower, beam elastic constraint system were analyzed to study the elastic stiffness constraint on the value of the different structure of the bridge.