Chapter
Aug 30, 2024
Welder Access to Crotch Plates
Publication: Pipelines 2024
ABSTRACT
Crotch plates are used to reinforce wyes and outlets on welded steel pipe; however, they represent a challenge, since complex geometry may be unfavorable to welder access. Inadequate welder access can have a negative effect on weld quality and compromise the strength and serviceability of these important components of water conveyance systems. This paper examines welder access given the complex geometry of crotch plates, welding details, welding processes, welding position, and limitations imposed by welding codes and provides guidance to designers and fabricators of crotch plates. Example problems are presented with assistance from a contour chart and table that circumvent rigorous calculations to simply understanding of welder access to crotch plates.
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REFERENCES
AWWA (American Water Works Association). AWWA C208. (2022). Dimensions for Fabricated Steel Water Pipe.
AWWA (American Water Works Association). AWWA M11. (2017). Steel Water Pipe: A Guide for Design and Installation, Fifth Edition.
AWS (American Welding Society). AWS D1.1. (2020). Structural Welding Code – Steel D1.1/D1.1M.
AWWA (American Water Works Association). (1955). Design of Wye Branches for Steel Pipe, by H. S. Swanson, H. J. Chapton, W. J. Wilkinson, C. L. King, and E. D. Nelson, Journal American Water Works Association, Vol. 47, No. 6, June 1955.
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Information & Authors
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Pipelines 2024
Pages: 282 - 291
History
Published online: Aug 30, 2024
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1Victaulic, Issaquah, WA. Email: [email protected]
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.