This paper discusses performance of the reinforced concrete structures deteriorated by corrosion on basis of numerical simulation analysis. The purpose is to preliminarily investigate the idea of performance comparison of circular and square reinforced concrete columns under corroded conditions. Previous research carried out by the authors shows that equivalent area reinforced concrete (RC) columns exhibit similar load-displacement behavior under flexural and shear controlled conditions. The two types of columns deviate from this similarity after the corrosion of steel reinforcement present in the concrete. The change in the load-displacement behavior is highly dependent upon factors including the corrosion ratio, axial load, presence of web reinforcement etc., The experimentally verified 3D finite element modelling (FEM) program (COM3D) was used to investigate the seismic performance of the circular shaped and its equivalent area square shaped RC columns. The results show that the effect of mild corrosion (around 2% corrosion) on the load-displacement behavior of square RC columns is more significant as compared to circular RC columns at without axial load and at lesser main reinforcement ratio while a similar behavior or reverse trend is observed at higher main reinforcement ratios and for cases with 10% axial load. The effect of corrosion on the web reinforcement present in square columns is more pronounced as compared to circular columns at low main reinforcement ratios.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Comparative Nonlinear Behavior of Corroded Circular and Square RC Columns


    Weitere Titelangaben:

    KSCE J Civ Eng


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2020-07-01


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Flexural Behavior of Corroded Reinforced Concrete Beams

    Gu, X.L. / Zhang, W.P. / Shang, D.F. et al. | British Library Conference Proceedings | 2010


    Performance Comparison of Circular and Square RC Columns under Monotonic Loading Conditions

    Mohammed, Ahmed Mohammed Youssef / Ahmed, Ali / Maekawa, Koichi | Springer Verlag | 2018


    Performance Comparison of Circular and Square RC Columns under Monotonic Loading Conditions

    Mohammed, Ahmed Mohammed Youssef / Ahmed, Ali / Maekawa, Koichi | Online Contents | 2019



    Research on Local Buckling Behavior of CFT Circular Columns

    Zhang, Guowei / Zhan, Yuan / Wu, Kunlun | ASCE | 2014