Study on Optimization of Reinforcement Arrangement in Steel-concrete Composite Bridge Deck
Taking an urban elevated bridge as an example,aiming at the problem of reinforcement arrangement in steel-composite bridge deck,the solid finite element model of beam section of closed steel box-concrete bridge deck is established.The stress distribution between the steel bridge deck and the steel bar in the concrete bridge deck under different spacing arrangement of vertical and horizontal rebar is analyzed.The research shows that the internal force distribution relationship exists between steel bridge deck and concrete bridge deck.The variation of transverse reinforcement spacing will affect the internal force distribution ratio of composite bridge deck.The stress of the longitudinal reinforcement bars in the lower row of the bridge deck is always low,and it is not sensitive to the change of reinforcement bar spacing,which can be properly optimized and designed to reduce its dosage.
composite structurebridge deckreinforcement arrangementfinite element analysis
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