On the ratio of plate thickness to stud diameters for steel concrete stud shear connectors

Title: On the ratio of plate thickness to stud diameters for steel concrete stud shear connectors
Author(s): H.D. Wright, A. Elbadawy, R. Cairns
Paper category : conference
Book title: International Symposium on Connections between Steel and Concrete
Editor(s): R. Eligehausen
Print-ISBN: 2-912143-25-X
e-ISBN: 2351580346
Publisher: RILEM Publications SARL
Publication year: 2001
Pages: 290 - 299
Total Pages: 10
Nb references: 11
Language: English

Abstract: Stud shear connection between concrete slabs and steel beams are common in composite construction. Current design guidance for slab to beam flange composite beams merely places a limit on steel plate thickness in relation to stud diameter. This paper shows the behaviour of the connection when studs are welded to relatively thin steel plates. Tests are currently made on Double skin composite (DSC) elements. DSC system comprises steel-concrete-steel sandwich elements that consist of a layer of un-reinforced concrete, sandwiched between two layers of thin steel plates. These in turn are connected to the concrete by welded shear stud connectors. Shear studs are used to transfer slip shear between the outer steel skins and concrete core. Four series of push-out tests are presented in this paper to investigate the behaviour of the shear studs when welded to thin steel plates. The plate thickness to stud diameter ratio was 1:3. Micro-concrete with maximum aggregate size smaller than 2.41 mm was used. The properties of the microconcrete are described. The micro-concrete core is pushed through the plates in direct shear in series 1,2 and 3 but in series 4 the compression force is applied to the steel plates simulating direct compression on this element. Failure modes are defined for each of the series of tests. The studies show that failure occurred by yielding for all shears stud connectors in series 1, 2 and 3 buckling failure of the steel plate in series four.

Online publication: 2009-12-31
Publication type : full_text
Public price (Euros): 0.00