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The Stable Type Suspension Bridge Reinforced Concrete Slab Strengthen Beam Optimizing Research

Author: FanShengHui
Tutor: QuBenNing
School: Kunming University of Science and Technology
Course: Engineering Mechanics
Keywords: stable type suspension bridge ANSYS APDL UIDL reinforced concrete slab
CLC: U448.25
Type: Master's thesis
Year: 2009
Downloads: 19
Quote: 1
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Abstract


Stable Type Suspension Bridge is a kind of bridges that was improved from the traditional suspension bridge, which is fit for the medium and small span bridge. And on account of added the inverse stretched system, the whole rigidity of the stable type suspension bridge advanced to a certainty. Moreover, the strengthen beam is one of the main parts of the stable type suspension bridge, and its dominating function is delivering the load to the cable, the strengthen beam itself bares the bridge surface weight and the load, therefore, a good design is capable of making the strengthen beam borne more live load in a light weight, as well as maintaining the loading changeable characteristic of the bridge.Here in the thesis, on the basis of the finite element data analysis method, I research the optimizing subject of the strengthen beam for the stable suspension bridge. The mainly work and performance as following:1, Summing up the development history of the suspension bridge at domestic and abroad, presenting the stable type suspension bridge’s construction principle and the strengthen performance.2, Expound the suspension bridge’s design calculating theory, the sheet theory, the finite element theory and the second development technology of the ANSYS.3, For the sake of research, I classified the strengthen beam from the common suspension cable bridges, according to two kinds of different separating methods and combined them to one another, finally got the below five strengthen beams:Armor Plate Strengthen Beam, Steel Chest Strengthen Beam, Steel Joist Frame Strengthen Beam, Reinforced Concrete Chest Strengthen Beam, and the Reinforced Concrete Slab Strengthen Beam.4, According to the stable type suspension bridge’s strengthening characteristics and the bridge surface tie demand, fix on the type of the strengthen bridge beam. After the compare and analysis, the conclusion is that the Reinforced Concrete Slab Strengthen Beam is the appropriate choice for the stable type suspension bridge. 5, Based on the ANSYS finite analysis system, and taken the advantages of the second development method, and chosen the APDL+UIDL pattern to exploit the specific menus and the matched sets parameterize models for the stable type suspension bridge modeling. Thereby, improve the efficiency on modeling and it brings a great convenience in the calculation and analysis for the stable type suspension bridge.6, Studying the reinforced concrete slab strengthen beam’s strengthen capability for the stable type suspension bridge, using the above mentioned second development finite element analysis method, building the bridge models rapidly in various strengthen parts’ length and various slab’s thickness. In the condition of the four groups of loading conditions analyzed the non-linearity finite element statics. Then analysis and compare the calculation results to select the most appropriate strengthen beam parts’length and thickness.This thesis study the stable type suspension bridge reinforced concrete slab strengthen beam as the optimizing research, getting some conclusion, and advancing some reference advices for the stable type suspension bridge surface tie design.

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CLC: > Transportation > Road transport > Bridges and Culverts > All kinds of bridges > Bridge: Structure > Suspension Bridge
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