Análisis de la resistencia a corte de los conectores tipo ángulo de 4 milímetros de espesor en losas tipo deck sobre estructura metálica.

Abstract

This investigation presents an experimental technical analysis of the behavior of angle-type shear connectors in composite systems. The geometric and mechanical properties and location of the connectors influence the behavior of the system, producing a wide field of study. The connectors treated in this study have a height of 95 mm with equal wings of 40 mm and a thickness of 4mm, located in plan at angles of 45° and 90°, welded in a metal beam of section I and embedded in a slab composed of metal sheet and 22.2 MPa concrete at 28 days. The function of the connectors is to transmit the shear forces of the slab to the beam or vice versa, in addition to presenting other physical characteristic such as ductility, rigidity or energy dissipation. International regulations such as Eurocode 4 present a test focused on this study called “Push-Out”, which consists of the application of cyclical loads on specimens, starting from a monotonic load. 7 specimens were used for each position of the connector, for a total of 14, additionally, the construction process, standards and previous studies for the respective assembly are detailed. The behavior of the angle-type shear connector in the composite system is described of the presented failure mode (“back-breaking” o “rolling fracture”) and the analysis of the base results given by the Push-Out test (curves load-slip) in conjunction with other similar investigations, as well as criteria presented by international regulations.