The main goal of this study was to develop the short composite beams using strain-hardening fiber-reinforced concrete (S_HPFRC) and conventional concrete (CC) together. Firstly, the sensitivity of the hybrid fiber system to the enhancement of mechanical properties of plain high performance concrete (P_mortar) was experimentally studied. The ranking of the mechanical properties in terms of sensitive coefficient was observed as follows: direct tensile > splitting tensile > compressive. Next, the responses of short composite beams with various thicknesses of S_HPFRC were investigated under a three-point bending test (3PBT). Six beams with no reinforcement (type A) and six beams with reinforcement were tested (type B) with their identical dimensions of 150 × 150 × 300 mm (depth × width × span length). The compressive strength of S_HPFRC and CC were about 80.65 MPa and 21.12 MPa, respectively. Most of the composite beams were observed to fail in shear mode. And, there was a favorable effect on enhancing the load-carrying capacity of a beam as S_HPFRC was placed at a critical tensile zone. Finally, based on the test data, the analytical equations were proposed for the purpose of predicting shear resistance of the S_HPFRC — CC beam.


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    Titel :

    Evaluating Load-Carrying Capacity of Short Composite Beam Using Strain-Hardening HPFRC


    Weitere Titelangaben:

    KSCE J Civ Eng


    Beteiligte:
    Nguyen, Duy-Liem (Autor:in) / Tran, Vu-Tu (Autor:in) / Tran, Ngoc-Thanh (Autor:in) / Ngo, Tri-Thuong (Autor:in) / Nguyen, Manh-Tuan (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2021-04-01


    Format / Umfang :

    14 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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