Chapter
Apr 4, 2017
Considerations in the Use of Side Load Pier Brackets
Authors: James Robert Harris, Ph.D. [email protected], and Kenneth Cobb [email protected]Author Affiliations
Publication: Structures Congress 2017
Abstract
During an investigation into the failure of a helical pier foundation system at a residential building we evaluated of the retrofit brackets that are often used for underpinning existing structures. These brackets are also referred to as side loaded or “L” brackets where the horizontal leg of the “L” is positioned below the footing or foundation wall and the vertical leg is positioned against the vertical face. This arrangement creates a couple due to the offset between the center of load from the foundation wall and the center of bearing on the horizontal leg of the bracket. We refer to this offset as the structure eccentricity. The moment generated by this offset is often resolved by the floor framing or other elements within the superstructure and to be evaluated on a case-by-case basis.
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Published In
Structures Congress 2017
Pages: 365 - 374
Copyright
© 2017 American Society of Civil Engineers.
History
Published online: Apr 4, 2017
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P.E., S.E.
J. R. Harris & Company, 1775 Sherman St., Ste. 2000, Denver, CO 80203. E-mail: [email protected]
P.E., S.E.
J. R. Harris & Company, 1775 Sherman St., Ste. 2000, Denver, CO 80203. E-mail: [email protected]
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