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Headed Steel Stud Anchors in Composite Structures: Part II - Tension and Interaction

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Title: Headed Steel Stud Anchors in Composite Structures: Part II - Tension and Interaction
Author(s): Pallares, Luis; Hajjar, Jerome F.
Subject(s): Composite Construction Composite Wall Steel Anchor Shear Stud Headed Stud Shear Connector
Abstract: The current AISC Specification for Structural Steel Buildings (AISC, 2005a) is the lead specification for composite construction in the U.S. However, these provisions do not provide a recommendation for computing the strength of headed steel stud anchors (traditionally used as shear connectors) under tension or combined tension and shear. Headed stud anchors are subjected to these types of forces in composite structures such as infill walls, composite coupling beams, the connection region of composite columns, or composite column bases. While ACI 318-08 Appendix D (ACI, 2008) and PCI 6th Ed. (PCI, 2004) includes provisions for such conditions, those provisions are geared for more general anchorage conditions than are typically seen in composite construction. It would thus be beneficial to have design guidance specifically for the case of headed steel stud anchors subjected to tension or combined tension and shear in composite construction, evaluated within the context of the AISC Specification. In this work, different strength equations to compute the nominal tensile strength of a headed stud are reviewed and compared to experimental results. The resulting recommendations seek to ensure a ductile failure in the steel shank instead of a brittle failure within the concrete. Several criteria are proposed to ensure that a ductile failure controls in composite construction, and, different headed stud configurations and detailing reinforcement recommendations are proposed to improve the ductile behavior of headed stud anchors subjected to tension and combined tension and shear.
Issue Date: 2009-04
Publisher: Newmark Structural Engineering Laboratory. University of Illinois at Urbana-Champaign.
Series/Report: Newmark Structural Engineering Laboratory Report Series 014
Genre: Technical Report
Type: Text
Language: English
URI: http://hdl.handle.net/2142/11547
ISSN: 1940-9826
Publication Status: published or submitted for publication
Rights Information: Copyright held by the authors. All rights reserved.
Date Available in IDEALS: 2009-04-24
 

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