End-bearing resistance of Y-type perfobond rib according to rib width–height ratio

Analysis of the Shear Behavior of Stubby Y-Type Perfobond Rib Shear Connectors for a Composite Frame Structure

“…In this study, stubby Y-type perfobond rib shear connectors were proposed for composite frames of building structures by modifying the conventional Y-type perfobond rib shear connectors [ 32 , 33 , 34 , 35 , 36 ]. To evaluate the shear strength and ductility of these connectors, push-out tests of composite structures were conducted using Y-type perfobond rib shear connectors with transverse rebars of different diameters (D13 and D16).…”

“…The Y-type perfobond shear connector developed based on various types of shear connectors was observed to have outstanding shear resistance and ductility [ 32 ], and exhibited good structural performance under the cyclic design load of bridges [ 33 ]. To predict the shear strength of Y-type perfobond shear connectors, Kim et al [ 34 , 35 , 36 ] conducted push-out tests, beam tests, and numerical analysis and proposed shear resistance formulas by considering design variables.…”

“…In building structures, the shear force exerted on the composite frame by design loads is smaller than that on composite bridges. The existing Y-type perfobond rib shear connectors [ 32 , 33 , 34 , 35 , 36 ] are designed for the girder slabs of composite bridges. Therefore, the rib and transverse rebars of the conventional Y-type perfobond rib shear connectors are extremely large for the composite frames of building structures.…”

Push-Out Tests for Shear Connectors in GFRP-Concrete Composite Bridge Deck Slabs

“…In steel and concrete composite structural systems, the transfer of shear forces between steel and concrete materials should be ensured by arranging different types of shear connectors, such as stud connectors (Shim et al 2004;Xue et al 2008), perfobond rib connectors (Cândido-Martins et al 2010;Zheng et al 2016), T-perfobond rib connectors (Vianna et al 2008), Y-type perfobond rib connectors (Kim et al 2014a;Kim et al 2013;Kim et al 2014b), channel connectors (Baran and Topkaya 2012), angle connectors (Shariati et al 2014), hat-shaped connectors (Kim et al 2011), I-shaped connectors (Mazoz et al 2013;Costa-Neves et al 2013), J-hook connectors (Richard Liew and Sohel 2009), and puzzle-shape composite dowels (Lorenc et al 2014a;Lorenc et al 2014b). Stud shear connectors and perfobond rib shear connectors are commonly used in steel and concrete composite structures.…”

Experimental Shear Resistance Evaluation of Ordinary and Perfobond Y-Shaped Shear Connectors

“…Thus, developing the perfobond shear connectors a new connector was proposed to improve its workability called the CR connector [17]; see Fig.1.e. In 2013, the Y-type perfobond rib shear connector was proposed to improve both the ductility and resistance of the conventional perfobond rib shear connector [18][19][20]. Based on the above background, the focus of the present paper is on a separated or single unit Yshaped shear connector and its structural behavior according to its geometry.…”