Rotation and moment redistribution capacity of fiber?reinforced concrete beams: Parametric analysis and code compliance
نویسندگان
چکیده
Fiber-reinforced concrete (FRC) has been proved to be a competitive solution for structural purposes. Extensive research highlighted the benefits of adding fibers on post-cracking strength, reduced crack spacing and width, improved durability, among others. However, these aspects are related serviceability limit states, significant work remains done in terms ultimate state behavior FRC members. As recent publications have emphasized, reinforced beams with low reinforcement ratios may result reduction deformation capacity and, hence, loss ductility. To further investigate this topic, paper presents results numerical parametric study simply continuous supported hybrid-reinforced (HRC) made different amounts ratios. The deformation, rotational, moment redistribution those were assessed by means finite-element model previously calibrated using experimental available literature. showed that there is rotation lightly (hybrid) Finally, contains practical recommendations minimum guarantee adequate HRC such, can provide contribution toward more reliable designs
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ژورنال
عنوان ژورنال: Structural Concrete
سال: 2021
ISSN: ['1464-4177', '1751-7648']
DOI: https://doi.org/10.1002/suco.202100350