The effectiveness of intentionally damaged full-size timber bridge members repaired by shear spiking was examined experimentally. Pultruded fibre-glass composite rods are inserted vertically through areas of damage to rejuvenate the horizontal shear properties of timber members. An epoxy-resin adhesive is used to bond the fibre-glass shear spikes to the wood and partially fill adjacent cracks and decay voids. Eight full-size railroad bridge timber stringers were intentionally damaged by partial or complete saw cuts through the width of the members to simulate minor and major deterioration, after which they were stiffened through the process of shear spiking. Although minor damage had much lower initial effects than major damage, significant percentage recovery of lost stiffness occurred in all members.
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June 2012
Research Article|
June 01 2012
Load tests of damaged railroad timber stringers repaired by shear spiking
Henrik P. Forsling, PE;
Henrik P. Forsling, PE
Senior Structural Engineer
URS Corporation, Denver, Colorado, USA
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Richard M. Gutkowski, PhD, PE;
Richard M. Gutkowski, PhD, PE
Emeritus Professor
Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, Colorado, USA
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Don W. Radford, PhD;
Don W. Radford, PhD
Professor
Department of Mechanical Engineering, Colorado State University, Fort Collins, Colorado, USA
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Jeno Balogh, PhD
Jeno Balogh, PhD
Associate Professor
Civil Engineering and Technology Department, Metropolitan State College of Denver, Denver, Colorado, USA
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Publisher: Emerald Publishing
Revision Received:
February 22 2010
Accepted:
June 29 2011
Online ISSN: 1751-7702
Print ISSN: 0965-0911
ICE Publishing: All rights reserved
2012
Proceedings of the Institution of Civil Engineers - Structures and Buildings (2012) 165 (6): 309–321.
Article history
Revision Received:
February 22 2010
Accepted:
June 29 2011
Citation
Forsling HP, Gutkowski RM, Radford DW, Balogh J (2012), "Load tests of damaged railroad timber stringers repaired by shear spiking". Proceedings of the Institution of Civil Engineers - Structures and Buildings, Vol. 165 No. 6 pp. 309–321, doi: https://doi.org/10.1680/stbu.10.00020
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