Vertical Uplift Capacity of Equally Spaced Multiple Strip Anchors in Sand |
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| Authors: | Jyant Kumar Manas Kumar Bhoi |
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| Institution: | (1) Department of Civil Engineering, Indian Institute of Science, Bangalore, 560012, India |
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| Abstract: | The ultimate uplift resistance of a group of multiple strip anchors placed in sand and subjected to equal magnitudes of vertical
upward pullout loads has been determined by means of model experiments. Instead of using a number of anchor plates in the
experiments, a single anchor plate was used by simulating the boundary conditions along the planes of symmetry on both the
sides of the anchor plate. The effect of clear spacing (s) between the anchors, for different combinations of embedment ratio (λ) of anchors and friction angle (ϕ) of soil mass, was examined in detail. The results were presented in terms of a non-dimensional efficiency factor (ξγ), which was defined as the ratio of the failure load for an intervening strip anchor of a given width (B) to that of a single strip anchor plate having the same width. It was clearly noted that the magnitude of ξγ reduces quite extensively with a decrease in the spacing between the anchors. The magnitude of ξγ for a given s/B was found to vary only marginally with respect to changes in λ and ϕ. The experimental results presented in this study compare reasonably well with the theoretical and experimental data available
in literature. |
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| Keywords: | Anchors Failure Foundations Model tests Scale effect Sand |
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