Influence on Steel Deck on Composite Beam Strength

by David R. Gibbings, Virginia Polytechnic Inst and State, Univ, Blacksburg, United States,
W. Samuel Easterling, Virginia Polytechnic Inst and State, Univ, Blacksburg, United States,
Thomas M. Murray, Virginia Polytechnic Inst and State, Univ, Blacksburg, United States,



Document Type: Proceeding Paper

Part of: Composite Construction in Steel and Concrete II

Abstract:

Results of a recent study were described in which 7 push-out tests and 4 composite beam tests were conducted. The results were consistent with other recent studies reported in the literature, in terms of the observation that strengths for shear studs, which are placed in the ribs of steel deck oriented transverse to the beam span, calculated using Eq. 2 were too liberal. Specific modifications to Eq. 2 are not proposed here, as further evaluation of existing procedures (Hawkins and Mitchell 1984; Jayes and Hosain 1988, 1989; Mottram and Johnson 1990; Lloyd and Wright 1990; Eurocode 1992) is required. However, the results of all the recent studies indicate that a modification is needed. The hypothesis regarding the influence of the steel deck material properties must be evaluated at the same time and perhaps included as a modification to one of the existing methods. This hypothesis, while not conclusively verified, was supported by the results of the Virginia Tech research program.

Subject Headings: Composite beams | Steel decks | Steel beams | Structural strength | Strength of materials | Material tests | Studs | Virginia | United States

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