Toe Cracks in Base Plate Welds — 30 Years Later
by Richard Aichinger, (Manager of Engineering, Valmont-Newmark, Utility Division, Valmont Industries Inc., P.O. Box 358, Valley, NE 68064-0358 E-mail: dick.aichinger@valmont.com) and Warren Higgins, (Principal Engineer, Structures Division, Valmont Industries Inc., P.O. Box 358, Valley, NE 68064-0358 E-mail: wchiggins@valmont.com)
pp. 274-285, (doi: http://dx.doi.org/10.1061/40790(218)25)
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| Document type: |
Conference Proceeding Paper |
| Part of: |
Electrical Transmission Line and Substation Structures: Structural Reliability in a Changing World |
| Abstract: |
A number of articles (including a series by Electric Light & Power) were published in the 1970’s on the subject of toe-cracking in base plate weldments. Despite nearly 30 years of experience, toe-cracks in base/flange plate weldments are still being discovered. This paper will review a Six-Sigma study undertaken by Valmont Industries to better identify the causes and the variables that we feel are essential to minimize the risk of toe-crack occurrences. |
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