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2020•IOP Conference Series Materials Science and EngineeringOpen access

Analysis of influence factors and stability of concrete-filled steel tube arch bridge

Jinzhi Wang, Junfeng Guo

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Abstract

Abstract A structural calculation model of a fly-bird-type concrete-filled steel tube arch bridge was established by using large general finite element software. The stability of the bridge during construction and in each working condition was numerically simulated and analysed. Linear elasticity, geometric nonlinearity and material nonlinearity stability safety factors were calculated and their influences on the stability were compared. At the same time, the main influence factors of the fly-bird-type concrete-filled steel tube arch bridge stability are discussed, the influences of the wind bracing number, form and stiffness on the bridge stability are calculated and analysed, and the reasonable values or forms range and the structural stability influencing factors under different value conditions are studied.

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Abstract A structural calculation model of a fly-bird-type concrete-filled steel tube arch bridge was established by using large general finite element software. The stability of the bridge during construction and in each working condition was numerically simulated and analysed. Linear elasticity, geometric nonlinearity and material nonlinearity stability safety factors were calculated and their influences on the stability were compared. At the same time, the main influence factors of the fly-bird-type concrete-filled steel tube arch bridge stability are discussed, the influences of the wind bracing number, form and stiffness on the bridge stability are calculated and analysed, and the reasonable values or forms range and the structural stability influencing factors under different value conditions are studied.

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Available abstract

Abstract A structural calculation model of a fly-bird-type concrete-filled steel tube arch bridge was established by using large general finite element software. The stability of the bridge during construction and in each working condition was numerically simulated and analysed. Linear elasticity, geometric nonlinearity and material nonlinearity stability safety factors were calculated and their influences on the stability were compared. At the same time, the main influence factors of the fly-bird-type concrete-filled steel tube arch bridge stability are discussed, the influences of the wind bracing number, form and stiffness on the bridge stability are calculated and analysed, and the reasonable values or forms range and the structural stability influencing factors under different value conditions are studied.

Key concepts: Structural engineering, Bracing, Arch, Arch bridge, Stiffness, Stability (learning theory), Finite element method, Bridge (graph theory)

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