Slip method for prestressing beams with bonded tendons

Details Slip method for prestressing beams with bonded tendons Slip method for prestressing beams with bonded tendons

2011-01-04

2011-01-04

Yao, Sam C (Department: 1746)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S229000, C052S223900

Reexamination Certificate

active

07862675

ABSTRACT:
A method for manufacturing a reinforced beam having a bonded tensile reinforcement member includes assembling a tensile reinforcement member to a beam, wherein adhesive is disposed between the tensile reinforcement member and the beam. A load is applied to the tensile reinforcement member to define a pre-tensioned tensile reinforcement member. A force is applied to urge the beam and the pre-tensioned tensile reinforcement member together. The load is released on the pre-tensioned tensile reinforcement member prior to the adhesive becoming cured, allowing longitudinal ends of the tensile reinforcement member to slide relative to the beam at longitudinal ends of the beam, and thereby forming a reinforced beam having a bonded tensile reinforcement member.

REFERENCES:
patent: 6105321 (2000-08-01), KarisAllen et al.
Rodrigo Silva-Henriquez, Chapter 3, Prestressing System Development and Feasibility of the Prestressing Method, Research Report written for the Department of Civil and Environmental Engineering and the AEWC Advanced Structures and Composites Center, University of Maine.
Rodrigo Silva-Henriquez, Chapter 4, Feasibility Testing of Prestressing Slip Method, Research Report written for the Department of Civil and Environmental Engineering and the AEWC Advanced Structures and Composites Center, University of Maine.
Rodrigo Silva-Henriquez, H. Gray, H. J. Dagher, and W. G. Davids, paper entitled Strength Performance of Prestressed GFRP-Glulam Beams.

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