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dc.contributor.advisorFrank, Karl H.
dc.creatorRios, Craig Abel
dc.date.accessioned2018-12-21T20:01:07Z
dc.date.available2018-12-21T20:01:07Z
dc.date.issued2007-05-19
dc.identifierdoi:10.15781/T2TT4GD5W
dc.identifier.urihttp://hdl.handle.net/2152/72384
dc.description.abstractThis study investigated the fatigue performance of multi-sided high-mast lighting towers. Recent failures of high-mast lighting towers have increased the awareness of the problems associated with these cantilevered structures. The failures of these steel poles primarily occur just above the weld at the base plate connection indicating a fatigue type failure. Although these structures are designed to the current 2001 AASHTO Specification, their susceptibility to fatigue failure has become a nationwide problem. The objective of this research was to evaluate the fatigue performance of typical fatigue critical connection details used in high-mast lighting towers. Laboratory fatigue testing was performed on full-scale specimens utilizing fillet welded socket connections, full penetration weld connections, as well as a stool base connection detail. The results of the study found that that the design provisions for high-mast lighting towers do not accurately predict the fatigue life of the structures. Common details designed in accordance with the AASHTO specification did not meet the required minimum fatigue life categories as specified by the design provisions. It was also found that significant fatigue resistance can be gained with an increase in base plate thickness and an increase in number of bolts used in the base plates.en_US
dc.format.mediumelectronicen_US
dc.language.isoengen_US
dc.relation.ispartofUT Electronic Theses and Dissertationsen_US
dc.rightsCopyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en_US
dc.subjectFatigue resistanceen_US
dc.subjectLighting toweren_US
dc.subjectDesign provisionen_US
dc.titleFatigue performance of multi-sided high-mast lighting towersen_US
dc.typeThesisen_US
dc.description.departmentCivil, Architectural, and Environmental Engineeringen_US
dc.type.genreThesisen_US
thesis.degree.departmentCivil, Architectural, and Environmental Engineeringen_US
thesis.degree.disciplineCivil Engineeringen_US
thesis.degree.grantorUniversity of Texas at Austinen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Science in Engineeringen_US
dc.rights.restrictionRestricteden_US


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