Finite Element Simulation and Parametric Studies of Perfobond Rib Connector

Abstract

Simulating the push-out test and conducting parametric study using finite element model are conducted using perfobond connectors. The finite element model was verified through comparing with push-out test results. The verified finite element model was then used to conduct parametric study aiming to investigate the effect of several parameters, such as height and thickness of connector, cross sectional area and yield strength of transverse reinforcement, concrete compressive strength and rib holes, on resistance capacity. The results of the parametric study are treated statistically to produce a mathematical model suggested to estimate the resistance capacity of the perfobond connector.

Experimental evaluation of the structural response of Perfobond shear connectors

“…(3) for this strength evaluation, based in Eq. (1) proposed by Oguejiofor & Hosain [10], and also supported by push-out tests: (4) where A sc is the concrete area present at the connector holes. An alternative formula was proposed by Ushijima et al [12]Eq.…”

“…Reference is made to the studies of Al-Darzi et al [3,4], Ferreira [5], Machácek & Studnika [6], Marecek et al [7], Medberry & Shahrooz [8], Neves & Lima [9], Oguejiofor & Hosain [10,11], Ushijima et al [12], Valente & Cruz [13], Verís-simo et al [14], Vianna et al [15,1,2] and Zellner [16]. From these studies it could be concluded that the structural behaviour is governed by several parameters such as the number of holes, the plate height, length and thickness, the concrete compressive strength, and the percentage of transverse reinforcement provided in the concrete slab, including any reinforcement provided at the connector holes.…”

08.02: Experimental research of multiple perfobond connectors for composite girders

“…Medberry and Shahrooz proposed a more general formula to predict the Perfobond shear connector's resistance [17] based on push-out tests, while Machácek and Studnicka [18], based on push-out and real scale tests, have evaluated the Perfobond shear connector's behaviour for further geometries, holes sizes, and concrete strengths. Al-Darzi et al [19] confirmed the previous findings that the number of holes, the plate height, length and thickness, the concrete compressive strength, and the percentage of transverse reinforcement used in the concrete slab, including any bars passing in the connector holes, are the parameters that govern the structural behaviour of the connection and proposed an additional analytical model to predict the connector's resistance, Similar conclusions have been made by Vianna et al [10], Xue et al [20], Youn-Ju et al [21], and Ahn et al [22]. This paper reports a study aiming at developing a high strength connection possessing considerable ductility, associating several Perfobond connectors side by side, a methodology that is quite common in the design of composite girders having studs as shear connectors.…”

“…Neto [25] systematically compared the experimental results described in the current paper with the analytical results obtained from the model of Oguejiofor and Hossain [13], Ushijima et al [15], Medberry and Shahrooz [17], Veríssimo et al [8], Al-Darzi et al [19], Vianna et al [10] and Ahn et al [22] for a single connector arrangement. Additional details of these models may be found on the original references and in [25], that provides a comprehensive description of this comparison.…”

Flexural behavior of preloaded reinforced concrete beams strengthened by prestressed CFRP laminates

“…The contribution of chemical bond to shear capacity of PBL was considered in their proposed equation for evaluating the shear resistance. Al-Darzi et al [18] proposed a numerical model using the finite element method to simulate the push-out tests. The effectiveness of the model was verified by the experimental results.…”