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A platform for research: civil engineering, architecture and urbanism
Concrete crack repair by stitches
Abstract An analytical scheme is developed for the use of stitches in repairing concrete cracks. The model provides guidelines for selecting the steps, locations and cross-sectional area of the stitches. The proposed model is based on the superposition technique in fracture mechanics in conjunction with a simple pull-out model established in this paper. The proposed fracture model assumes that the final stitch elongation is equal to the final crack mouth opening displacement. The final crack mouth opening displacement is equal to: (1) the external loads opening of the mouth ignoring the stitch's contribution, and (2) the arrest caused by the stitch itself. In this paper, the problem chosen for this purpose is a beam with an edge notch at the center. The beam is subjected to a concentrated load at the mid-span. The analytical solution for a homogeneous beam with edge notch is given in the literature. The predicted results of stitch forces and the critical stress intensity factor are compared to those obtained experimentally.
Concrete crack repair by stitches
Abstract An analytical scheme is developed for the use of stitches in repairing concrete cracks. The model provides guidelines for selecting the steps, locations and cross-sectional area of the stitches. The proposed model is based on the superposition technique in fracture mechanics in conjunction with a simple pull-out model established in this paper. The proposed fracture model assumes that the final stitch elongation is equal to the final crack mouth opening displacement. The final crack mouth opening displacement is equal to: (1) the external loads opening of the mouth ignoring the stitch's contribution, and (2) the arrest caused by the stitch itself. In this paper, the problem chosen for this purpose is a beam with an edge notch at the center. The beam is subjected to a concentrated load at the mid-span. The analytical solution for a homogeneous beam with edge notch is given in the literature. The predicted results of stitch forces and the critical stress intensity factor are compared to those obtained experimentally.
Concrete crack repair by stitches
Hamoush, Sameer (author) / Ahmad, S. H. (author)
1997
Article (Journal)
English
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