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

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
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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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