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Analysis and Application to Construction Force of Arch Rib and Tie Beam of Long-Span Concrete-filled Steel Tube Arch Bridge

Author: DingXiaoYan
Tutor: LiuFan
School: Suzhou Institute of Technology
Course: Structural Engineering
Keywords: Concrete Filled Steel Tubular Arch bridge Construction process Finite Element Simulation Rib Tie beam
CLC: U448.22
Type: Master's thesis
Year: 2011
Downloads: 34
Quote: 1
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Abstract


Arch Bridge Concrete Filled Steel Tubular Arch Bridge as a thrust or less thrust , breaking the traditional arch bridge pier and foundation require a higher limit , thus greatly improving its applicability ; At the same time , various bridge type CFST Arch Bridge , modeling appearance, reasonable structure , spanning ability and many other advantages , making the bridge type has a clear competitive advantage in the campaign of large - span bridge program , but also to increase the texture and structure , the complexity of the mechanical characteristics of the computational analysis . This paper first reviews the concept and characteristics of CFST Arch Bridge , then summarizes the computational analysis of the status quo in the process of such bridge construction , Finally, an actual calculation of Engineering ( Suzhou Xingxian Bridge ) analysis , force of CFST Arch Bridge characteristics do further analysis . The main content of this paper is as follows : ( 1 ) summarizes the relevant norms and procedures of steel pipe concrete structure of Rigidity difference , from the selection of the appropriate method of calculating reasonable value of the stiffness of this article Steel Pipe Concrete Arch . Different stiffness ratio for Rib Tied ( beam) , and analysis of the mechanical characteristics of the different structural systems CFST Arch Bridge . ( 2 ) using ANSYS finite element software , the whole construction process of the Concrete Filled Steel Tubular Arch Bridge and the tie beam finite element simulation , analysis of Steel Pipe Concrete Arch Bridge and the tie beam force and deformation characteristics of the construction phase , and summed up the corresponding changes in the law (including arch rib and tie beam stiffness , stress, deflection variation and tie beams prestressed arch beam force impact ) . Predict the development of stress and deformation of the arch beam in the construction process , and to provide the basis for the actual construction monitoring and theoretical guidance . ( 3 ) tracking Xingxian Bridge site monitoring work , the theoretical calculations are compared with the actual results of the monitoring to verify the reliability of the finite element simulation and effectiveness . Of this research work can provide a reference for construction monitoring of Large Span CFST Arch Bridge .

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