Shear Strength Analysis of Angle-type connectors in Reinforced Concrete Slabs on a Metallic Structure

Resistencia a Corte de Conectores Tipo Ángulo en Losas de Hormigón Armado sobre Estructura Metálica

• Jonathan Rolando Franco Pacheco Facultad de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, [PO•Box 17-012759], Quito 170517, Ecuador https://orcid.org/0000-0001-7741-4226
• Miguel Slyter Martínez Torres Facultad de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, [PO•Box 17-012759], Quito 170517, Ecuador https://orcid.org/0000-0003-4036-0644
• Luis Tinerfe Hernández Rodríguez Centro de Investigación de la Vivienda, Facultad de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, [PO•Box 17-01-2759], Quito 170517, Ecuador https://orcid.org/0000-0002-5805-9318
• Diego Armando Arévalo Chafuel Centro de Investigación de la Vivienda, Facultad de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, [PO•Box 17-01-2759], Quito 170517, Ecuador https://orcid.org/0000-0003-4578-1974
• Melisa Natalia Herrera Quishpe Centro de Investigación de la Vivienda, Facultad de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, [PO•Box 17-01-2759], Quito 170517, Ecuador https://orcid.org/0000-0003-0300-0383
• Christian Michael Gómez Soto Centro de Investigación de la Vivienda, Facultad de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, [PO•Box 17-01-2759], Quito 170517, Ecuador https://orcid.org/0000-0002-5017-4629

Keywords: shear resistance, shear connector, angle connector, push-out test

Abstract

For years concrete slabs have been built on steel beams, however, not considering the transmission of shear forces between them, causes the elements to work separately. To ensure the transmission of forces, the load must be transmitted through mechanical connectors. In construction, stud bolts, angle profiles and screws are commonly used as connectors, although not all of them are standardized. The present work analyzes the behavior of angle shear connectors when they are located in a different way than stated in design codes. For this study, angle share connectors were considered placed perpendicular to the face of the steel beam skid; analyzing two types of positions (45 and 90° referring to the longitudinal axis of the flange). In order to check which one has adequate behavior and resistance, push-out tests were carried out, with a total of 6 specimens per position. The shear force vs. slip curves obtained from the connector at 45 ° showed a more homogeneous behavior in all the parameters analyzed compared to the curves obtained for the connector at 90 °. Its optimal performance makes the 45 ° connector the most suitable for implementation.

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