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Concrete-separation of Arch Ribs on the Ultimate Bearing Capacity of Concrete-Filled Steel Tubular Arch Bridge

Author: TangHuan
Tutor: XuHanZuo
School: Chang'an University
Course: Bridge and Tunnel Engineering
Keywords: CFST Arch Bridge Finite Element Method Rib Void Ultimate bearing capacity Prevention and control measures
CLC: U441
Type: Master's thesis
Year: 2010
Downloads: 87
Quote: 0
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Abstract


CFST Arch Bridge in recent years in our country to flourish , it takes full advantage of high steel concrete composite material compressive strength , ductility and good , but in terms of design or construction are complex , there must be specialized research . CFST Arch Bridge 's Rib the Void problem is a complex engineering problem , this article below deck CFST Arch Bridge -depth analysis of the background of the Void . This article describes the structure and construction of steel pipe concrete structure of the basic mechanical properties of steel pipe concrete arch bridge CFST Arch Bridge and detailed structural design , calculation and checking of specific methods and procedures . Then based on the structural characteristics of the Zhengzhou Yellow River Highway Bridge , using the finite element method , finite element discretization of the bridge , the bridge beams were simulated with different spatial units , the Department of the components of the beam , boom , Rib , established a limited element model . Concrete Filled Steel Tubular Arch Bridge the Void common diseases , the main research CFST Arch Bridge Void mechanism and Void reasons CFST Arch Bridge steel tube and core concrete interface debonding internal forces and displacements the method theoretical analysis . Relying on the Zhengzhou Yellow River Highway Bridge , using ANSYS software for finite element calculations, analyzes Rib in different Void rate under deck ultimate bearing capacity of the half-bridge load and full-bridge load change is applied to different Void rate ultimate bearing capacity of various conditions , summarize , and draw valid conclusions , based on the economic and practical measures of governance Void . These conclusions , in order to provide a viable reference for class bridge type design, construction , health inspection and routine maintenance process to provide a valid basis for CFST Arch Bridge in .

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CLC: > Transportation > Road transport > Bridges and Culverts > Structural principles, structural mechanics
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