Study of single perfobond rib with head stud shear connectors for a composite structure

Abstract

The head stud connector and the perfobond rib connector are the most common forms of ductile and rigid shear connector, respectively, but have strengths and weaknesses. This study evaluates the behaviour of a single perfobond rib with head stud shear connector that combines the advantages of both. First, a shear resistance equation is proposed to predict the strength of the single perfobond rib with head stud shear connector based on equations for the head stud connector and the single perfobond rib shear connector. Five groups of single perfobond rib with head stud shear connectors, ten push-out test specimens in total, were used to investigate the fracture failure mode, load–slip relationship, shear capacity and ductility of the specimens. Based on the test results, the influences of the parameters of the shear connector on shear capacity are discussed. The experiments show that the single perfobond rib with head stud shear connector is superior in terms of shear resistance and ductility. Shear capacity and corresponding relative slip of the specimens increase with increasing diameter of the head stud and transverse rebar, whereas ductility decreases. The accuracy of the proposed shear-capacity equation is verified by comparison with the test results.

Shear Behavior of Stud-PBL Composite Shear Connector for Steel–Ceramsite Concrete Composite Structure

“…Zhang [7] added two rows of studs to both sides of the perforated steel plate to improve the shear bearing capacity; this connector, which was composed of the perforated plate and the studs, was used in the Nakano Viaduct Project in Japan. For this method, push-out tests and finite element simulation analysis were performed by Deng [8] and Zheng [9]. Their study verified the superior shear resistance of the perforated plate + stud shear connector.…”

Review of Various Shear Connectors in Composite Structures

“…The advantages of headed stud shear and PBL connectors together have enabled researchers to improve the shear behaviour of composite structures. Deng et al [56] developed and tested a combination of headed shear connectors with a single perfobond rib (Fig. 14) by using ten push-out test specimens for evaluating the fracture mode, shear capacity, load-slip behaviour, and ductility.…”

Innovative Steel Pennon Plate-Headed Stud of Shear Connectors for Composite Structures

“…Sun et al [4] experimentally investigated the performance of a headed stud welded to a composite deck for the effect of decking type, presence, and direction of rib on shear capacity. Deng et al [5] combined headed studs and perfobond ribs to enhance composite structure shear behavior. Konrad and Kuhlmann [6] investigated the bearing resistance of headed studs used in trapezoidal steel sheeting to determine the effect of the stud's location in the trough and other geometric factors on the failure mode.…”