NDLI: Concrete crack repair by stitches

Content Provider	Springer Nature Link
Author	Hamoush, Sameer Ahmad, S. H.
Copyright Year	1997
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.On développe un schéma analytique utilisant des points de suture pour réparer des fissures dans du béton. Ce modèle fournit des directives pour les étapes, la localisation et la superficie transversale des points de suture. Il se base sur la technique de superposition de la mécanique de la rupture en conjonction avec un modèle simple de l'arrachement présenté dans cet article. Le modèle suppose que l'élongation finale de la suture sera égale au déplacement final de l'ouverture de la fissure. Ce déplacement final est égal à (1) l'ouverture de la fissure résultant de la charge externe sans tenir compte de la suture et à (2) l'arrêt résultant de la suture elle-même. Dans cet article, le problème est étudié sur une poutre ayant, au centre, une entaille sur le bord. La poutre est soumise à une charge concentrée au milieu. La solution analytique pour une poutre homogène avec une entaille sur le bord est fournie par la littérature. Les résultats prévus concernant la force des sutures et le facteur d'intensité de la contrainte critique sont comparé à ceux obtenus expérimentalement.
Starting Page	418
Ending Page	423
Page Count	6
File Format	PDF
ISSN	13595997
Journal	Materials and Structures
Volume Number	30
Issue Number	7
e-ISSN	18716873
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1997-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Theoretical and Applied Mechanics Structural Mechanics Mechanical Engineering Operating Procedures, Materials Treatment Civil Engineering Building Materials
Content Type	Text
Resource Type	Article
Subject	Building and Construction Mechanics of Materials Materials Science Civil and Structural Engineering

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