Composite Beams with Headed Studs in Narrow Ribbed Metal Deckby Charalambos Androutsos, Univ of Saskatchewan, Saskatoon, Canada,
M. U. Hosain, Univ of Saskatchewan, Saskatoon, Canada,
Abstract: This paper presents the results of sixteen push-out tests conducted to study the behavior of headed stud connectors in composite beams with narrow ribbed metal deck placed parallel to the steel beam. The main objective of this investigation was to evaluate the reliability of the reduction factor provision in CAN/CSA-S16.1-M89 for this type of composite beams. The effect of stud spacing on the shear capacity of headed stud connectors was also investigated. Test results indicated that for specimens with 103 mm slab, the reduction factor provision in CAN/CSA-S16.1-M89 overestimates the shear capacity of headed studs while for the specimens with 150 mm slab, this clause provides very conservative estimates of the connector strength. The results also showed that stud spacing greatly influences the failure mode and shear strength of the test specimens. These conclusions must be confirmed by further push-out tests, followed by full size beam tests.
Subject Headings: Composite beams | Steel beams | Studs | Shear strength | Connections (structural) | Steel decks | Shear tests | Metals (material)
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