DESIGN STRENGTH OF STUD SHEAR CONNECTORS

There are wide discrepancies in the recommendations for the design strength of stud shear connectors in bridge codes. The naasra bridge design specification requires studs of 410 mpa minimum tensile strength whilst the British code requires studs of 500 mpa minimum tensile strength, but uses design values much lower than naasra's. These recommendations conflict with other work which shows that the ultimate shear strength of the connector is proportional to the ultimate tensile strength of the stud steel. This paper presents a probabilistic method of deriving the design strengths of stud shear connectors for use in the flexural design of composite steel beam - concrete slab construction. This method takes into account the variabilities of the factors that influence the strength of the stud connectors. The derivation is based on existing American, British and Australian push-out test data and properties of Australian- made studs. This study shows that the naasra bridge design specification overestimates the strength of stud connectors for cases involving high strength concrete and/or large diameter studs. The British values are much closer to the proposed values, although they require higher strength studs than are assumed in the derivation in this paper (A). (TRRL)

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 16-22
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00312276
  • Record Type: Publication
  • Source Agency: ARRB Group Ltd.
  • Files: ITRD, TRIS, ATRI
  • Created Date: Dec 30 1980 12:00AM