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

Anh-Tuan Vu; Ngoc-Duc Han; Kien Nguyen; Dinh-Hoa Nguyen

doi:10.3221/IGF-ESIS.59.19

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

Authors

Anh-Tuan Vu Department of Steel and Timber Structures, Faculty of Building and Industrial Construction, Hanoi University of Civil Engineering https://orcid.org/0000-0002-0524-7024
Ngoc-Duc Han Department of Steel and Timber Structures, Faculty of Building and Industrial Construction, Hanoi University of Civil Engineering
Kien Nguyen Department of Steel and Timber Structures, Faculty of Building and Industrial Construction, Hanoi University of Civil Engineering, 55 Giai Phong road, Hanoi, Vietnam
Dinh-Hoa Nguyen Department of Steel and Timber Structures, Faculty of Building and Industrial Construction, Hanoi University of Civil Engineering

DOI:

https://doi.org/10.3221/IGF-ESIS.59.19

Keywords:

Concrete Dowel, Shear Connector, Web Opening, Push-out Test, Shallow-Hollow Composite Beam

Abstract

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

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Published

22-12-2021

Issue

Vol. 16 No. 59 (2022): January 2022

Section

SI: Steels and Composites for Engineering Structures

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

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How to Cite

The influences of the number of concrete dowels to shear resistance based on push out tests. (2021). Frattura Ed Integrità Strutturale, 16(59), 254-264. https://doi.org/10.3221/IGF-ESIS.59.19