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The influences of the number of concrete dowels to shear resistance based on push out tests

Frattura ed integritá strutturale, 2022-01, Vol.16 (59), p.254-264

ISSN: 1971-8993 ;EISSN: 1971-8993 ;DOI: 10.3221/IGF-ESIS.59.19

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  • Title:
    The influences of the number of concrete dowels to shear resistance based on push out tests
  • Author: Vu, Anh-Tuan ; Han, Ngoc-Duc ; Nguyen, Kien ; Nguyen, Dinh-Hoa
  • Subjects: concrete dowel ; push-out test ; shallow-hollow composite beam ; shear connector ; web opening
  • Is Part Of: Frattura ed integritá strutturale, 2022-01, Vol.16 (59), p.254-264
  • Description: To reduce the depth of floor-beam structures and to save the cost of headed-shear studs, many types of shallow composite beam have been developed during the last few years. Among them, the shallow-hollow steel beam consists of web openings, infilled with in-situ concrete (named concrete dowel) has been increasingly focused recently. In this new kind of structure, this concrete dowel plays an important role as the principal shear connector. This article presents an investigation on the shear transferring mechanism and failure behavior of the trapezoid shape concrete dowel. An experimental campaign of static push-out tests has been conducted with variability in the number of web openings (WOs). The results indicate that the mechanical behavior of concrete dowel could be divided into crushing, compression, and tension zones and exhibits brittle behavior. The longitudinal shear resistance and specimen's stiffness are strongly affected by the number of considered WOs
  • Publisher: Gruppo Italiano Frattura
  • Language: English
  • Identifier: ISSN: 1971-8993
    EISSN: 1971-8993
    DOI: 10.3221/IGF-ESIS.59.19
  • Source: ROAD: Directory of Open Access Scholarly Resources
    DOAJ Directory of Open Access Journals
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