Reliability‐Based Design of Wood Transmission Line Structures
Publication: Journal of Structural Engineering
Volume 109, Issue 3
Abstract
Several phases of a project seeking to improve the design of wood transmission line structures are presented. Improved information for wood pole strength includes a compilation of results from previous pole tests of new fairly short poles. Strength and stiffness values from a pilot study of transmission‐size poles and poles removed from service are also presented. These tests show that pole strength is significantly reduced by exposure to typical service conditions. In addition, limited tests of new transmission‐size poles show results similar to those of previous tests of new short poles. A load and resistance factor design format with design factors based on reliability concepts is advocated as a practical method to improve design of transmission line structures by achieving a better balance of reliability and economy. The proposed utility use of equations for load and resistance factors containing design quantity variabilities and reliability index values allows the consideration of special conditions and encourages gathering of local data. An illustration of the reliability‐based design method is also included.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 109 • Issue 3 • March 1983
Pages: 690 - 704
Copyright
Copyright © 1983 ASCE.
History
Published online: Mar 1, 1983
Published in print: Mar 1983
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