Author(s)

D. Radford, R. Gutkowski, D. Van Goethem & M. Peterson

Abstract

Pultruded composite shear spike for repair of timber members D. adf ford' , R. Gutkowski' D. Van Goetheml & M. peterson2 I Colorado State University, USA 2 University of Maine, USA Abstract Use of pultruded composites to rejuvenate low aspect ratio timber beams is described. Loss of shear resistance is restored by inserting fiberglass pultruded rods from the bottom to the top of the beam, through areas of damage. An adhesive is incorporated during the process of insertion, which bonds the reinforcing rods in-place and fills adjacent cracks. Scale beam testing, with a variety of reinforcement cases, has been performed and the overall results are extremely positive, with test beams showing strong recovery of flexural properties and improvement in the strain to failure. 1 Introduction In the U.S.A. timber construction is an important part of the infrastructure [5]. Based on the National Bridge Inventory 41,743 timber bridges are included in the inventory with an additional 42,102 steel bridges w

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