Ultimate Load Capacities of Plane and Axisymmetric Headed Anchors
Publication: Journal of Engineering Mechanics
Volume 125, Issue 11
Abstract
A finite-element-based linear elastic fracture mechanics analysis of the pullout of headed anchors is presented. The anchor is modeled as a vertically loaded crack of diameter c, embedded at a depth d, with a rigid upper surface, and traction-free lower surface. The fracture toughness and Poisson's ratio of the surrounding matrix are KIc and ν, respectively. For selected values of d/c, the mode-I stress intensity factor is calculated for each increment of the crack growth, which emanates from the edge of the anchor, and follows the direction of zero mode-II stress intensity factor. The stress intensity factors are used to calculate the ultimate load Pu, which is written as Pu = g(d/c, ν)d3/2KIc. For ν = 0.2 and relatively large values of d/c, g = 2.8 for axisymmetric anchors and g = 1.2 for plane strain anchors.
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References
1.
Ballarini, R., Shah, S. P., and Keer, L. M. (1985). “Failure characteristics of short anchor bolts embedded in a brittle material.” Proc., Royal Soc., London, A404, 35–54.
2.
“Code requirements for nuclear safety.” (1989). Appendix B. Steel embedments, manual of concrete practice, Part IV, ACI #349.1R, ACI Committee 349, American Concrete Institute, Detroit.
3.
Eligehausen, R., and Sawade, G. ( 1989). “Analysis of anchorage behavior (literature review).” Fracture mechanics of concrete structures: From theory to applications, L. Elfgren, ed., Chapman & Hall, London, 263–280.
4.
FRANC-2D. ( 1997). Cornell Fracture Group Home Page, Cornell University, Ithaca, N.Y.
5.
Karihaloo, B. L. (1996). “Pull-out of axisymmetric headed anchors.” Mat. and Struct., 29, 152–157.
6.
Ozbolt, J., and Eligehausen, R. (1992). “Fastening elements in concrete structures—numerical solutions.” Fracture of Concrete and Rock, Proc., 2nd Int. Conf., H. P. Rossmanith, ed., E & FN Spon, London, 527–547.
Information & Authors
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Published In
Journal of Engineering Mechanics
Volume 125 • Issue 11 • November 1999
Pages: 1276 - 1279
History
Received: Feb 2, 1999
Published online: Nov 1, 1999
Published in print: Nov 1999
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