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Nonlinear Stability Analysis of deck-type Concrete Filled Steel Tubular Arch Bridge

Chen Ai-ron

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Abstract

Stability is crucial to concrete filled steel tubular arch bridge,which is more dangerous than strength damage.Up to now, the nonlinear stability analysis of deck-type concrete filled steel tubular(CFST)arch bridge is studied less.A spatial nonlinear model is established and the linear and nonlinear analyses of stability on a large- span CFST arch bridge are made.Discussions on symmetrical and asymmetrical initial imperfections are studied and results show that they would weaken the stability of the deck- type CFST arch bridge.The results may be valuable for the design and construction of such kind of bridges.

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What this paper is about

Stability is crucial to concrete filled steel tubular arch bridge,which is more dangerous than strength damage.Up to now, the nonlinear stability analysis of deck-type concrete filled steel tubular(CFST)arch bridge is studied less.A spatial nonlinear model is established and the linear and nonlinear analyses of stability on a large- span CFST arch bridge are made.Discussions on symmetrical and asymmetrical initial imperfections are studied and results show that they would weaken the stability of the deck- type CFST arch bridge.The results may be valuable for the design and construction of such kind of bridges.

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Available abstract

Stability is crucial to concrete filled steel tubular arch bridge,which is more dangerous than strength damage.Up to now, the nonlinear stability analysis of deck-type concrete filled steel tubular(CFST)arch bridge is studied less.A spatial nonlinear model is established and the linear and nonlinear analyses of stability on a large- span CFST arch bridge are made.Discussions on symmetrical and asymmetrical initial imperfections are studied and results show that they would weaken the stability of the deck- type CFST arch bridge.The results may be valuable for the design and construction of such kind of bridges.

Key concepts: Structural engineering, Arch, Deck, Arch bridge, Bridge (graph theory), Nonlinear system, Span (engineering), Engineering

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