Experimental investigation of the response of older and newly constructed reinforced concrete beam-column bridge joints indicates that inelastic joint action may contribute to global bridge response under earthquake loading. A model is proposed to simulate the response of these components under reversed-cyclic loading. This model provides a simple representation of the primary mechanisms that determine inelastic behavior: failure of the joint core under shear loading and anchorage failure of reinforcement embedded in the joint. The model is implemented as a 4-node, 12-degrees-of-freedom element that is appropriate for use with typical hysteretic beam-column elements in two-dimensional nonlinear analysis of reinforced concrete structures. A simple calibration procedure is proposed to define load-deformation response on the basis of material, geometric, and design parameters. The proposed joint model and calibration procedure are evaluated through comparison of simulated and observed response for a subassemblage tested in the laboratory. This comparison shows that this relatively simple model and calibration procedure can be used to simulate the fundamental characteristics of beam-column joint response under reversed-cyclic loading.


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    Title :

    Modeling the Response of Reinforced Concrete Bridge Beam-Column Joints Subjected to Earthquake Loading


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    2002-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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