A seismic vulnerability analysis of a multi-span simply supported bridge is often based on the seismic response of the most critical pier. This response is influenced by different collapse modes (flexural, shear, second order effects, lap-splice of longitudinal bars or their buckling). Among these the flexural behaviour is important and it's known if the equivalent plastic hinge length and the Moment-Curvature law of the fixed end are given. This paper provides a closed-form dimensionless solution to obtain a 5 point Moment-Curvature diagram for circular RC section. The solution is based only on three parameters: dimensionless axial force, mechanical percentage of longitudinal reinforcement, geometrical percentage of transversal reinforcement. A numerical example is presented to test the solution comparing it with a FEM analysis.


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    Title :

    Simplified closed-form solution for the determination of the moment-curvature response of a circular RC section


    Contributors:
    Raffaele, D (author) / Gentile, R (author) / Mezzina, M (author)

    Publication date :

    2015-05-27


    Remarks:

    In: Proceedings of the 2015 COMPDYN Conference. (pp. pp. 4160-4170). COMPDYN: Crete Island, Greece. (2015)


    Type of media :

    Paper


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    629



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