Active Shear Planes of Bolted Connections Failing in Block Shear
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Volume 139, Issue 3
Abstract
In the steel design codes worldwide, the shear area for calculating the block shear capacity of a bolted connection is either the gross or the net shear area. The authors have previously noted independent experimental evidence indicating the shear failure planes to lie midway between the gross and the net shear planes, termed the active shear planes. This paper presents the nonlinear contact finite brick element analysis results that confirm the location of the active shear planes, indicated by regions of maximum shear stresses. The finite-element analysis also found that shear stresses approach zero toward the free downstream end of the connection block. The veracity of the active shear area is further demonstrated in terms of the ability of the resulting block shear equation to predict the governing failure modes of test specimens consistently, in comparison with the equations assuming the gross and the net shear areas.
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Acknowledgments
The authors thank John Kralic, Manager (Lysaght Research and Technology, Bluescope Steel Limited), for supplying the G450 sheet steel materials used in the present work; Gregory Hancock, Emeritus Professor (University of Sydney), for expert input concerning the state of the art of bolted connection design in cold-formed sheet steel; and Chris Cook, Dean of Engineering, and Muhammad Hadi, Head of the Advanced Structural Engineering and Construction Materials Group (University of Wollongong), for supporting the laboratory tests that were conducted in the High Bay Laboratory of the Faculty of Engineering. The specimens were fabricated by Ritchie McLean.
References
ABAQUS 6.9 [Computer software]. Providence, RI, Dassault Systèmes.
AISC. (1978). Specification for the design, fabrication and erection of structural steel for buildings, Chicago.
AISC. (1986). Load and resistance factor design specification for structural steel buildings, Chicago.
AISC. (1999). Load and resistance factor design specification for structural steel buildings, Chicago.
AISC. (2010). “Specification for structural steel buildings.” ANSI/AISC 360-10, Chicago.
American Iron and Steel Institute (AISI). (2010). “North American specification for the design of cold-formed steel structural members, 2007 edition with supplement 2.” AISI S100-07 W/S2-10, Washington, DC.
Birkemoe, P. C., and Gilmor, M. I. (1978). “Behavior of bearing-critical double-angle beam connections.” Eng. J. AISC, 15(3), 109–115.
Clements, D. D. A. (2011). “Block shear capacity of bolted connections in cold-reduced steel sheets.” B.E. thesis, Univ. of Wollongong, Wollongong, Australia.
Cunningham, T. J., Orbison, J. G., and Ziemian, R. D. (1995). “Assessment of American block shear load capacity predictions.” J. Construct. Steel Res., 35(3), 323–338.
Driver, R. G., Grondin, G. Y., and Kulak, G. L. (2006). “Unified block shear equation for achieving consistent reliability.” J. Construct. Steel Res., 62(3), 210–222.
European Committee for Standardization (CEN). (1992). “Design of steel structures, Part 1.8: Design of joints.” Eurocode 3, EN 1993-1-8, Brussels, Belgium.
European Committee for Standardization (CEN). (2005). “Design of steel structures, Part 1.8: Design of joints.” Eurocode 3, EN 1993-1-8, Brussels, Belgium.
Franchuk, C. R., Driver, R. G., and Grondin, G. Y. (2003). “Experimental investigation of block shear failure in coped steel beams.” Can. J. Civ. Eng., 30(5), 871–881.
Hardash, S. G., and Bjorhovde, R. (1985). “New design criteria for gusset plates in tension.” Eng. J. AISC, 22(2), 77–94.
Huns, B. B. S., Grondin, G. Y., and Driver, R. G. (2006). “Tension and shear block failure of bolted gusset plates.” Can. J. Civ. Eng., 33(4), 395–408.
Kim, T. S., and Kuwamura, H. (2007). “Finite element modelling of bolted connections in thin-walled stainless steel plates under static shear.” Thin-walled Struct., 45(4), 407–421.
Liao, M., Okazaki, T., Ballarini, R., Schultz, A. E., and Galambos, T. V. (2011). “Nonlinear finite-element analysis of critical gusset plates in the I-35W Bridge in Minnesota.” J. Struct. Eng., 137(1), 59–68.
Seleim, S., and LaBoube, R. A. (1996). “Behavior of low ductility steels in cold-formed steel connections.” Thin-walled Struct., 25(2), 135–150.
Standards Australia/Standards New Zealand (SA/SNZ). (2005). “Cold-formed steel structures.” AS/NZS 4600:2005, Homebush, New South Wales, Australia.
Teh, L. H., and Clements, D. D. A. (2012). “Block shear capacity of bolted connections in cold-reduced steel sheets.” J. Struct. Eng., 138(4), 459–467.
Teh, L. H., and Gilbert, B. P. (2012). “Net section tension capacity of bolted connections in cold-reduced steel sheets.” J. Struct. Eng., 138(3), 337–344.
Topkaya, C. (2004). “A finite element parametric study on block shear failure of steel tension members.” J. Construct. Steel Res., 60(11), 1615–1635.
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© 2013 American Society of Civil Engineers.
History
Received: Dec 14, 2011
Accepted: Mar 30, 2012
Published online: Apr 14, 2012
Published ahead of production: May 26, 2012
Published in print: Mar 1, 2013
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