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Effect of the presence of pre-service construction cracks in concrete decks on the thermal profile of composite steel-concrete bridges in cold regions

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dc.contributor.author Abi Shdid, Caesar
dc.contributor.author El Masri, Omar Y.
dc.date.accessioned 2018-01-23T12:41:50Z
dc.date.available 2018-01-23T12:41:50Z
dc.date.copyright 2017 en_US
dc.identifier.uri http://hdl.handle.net/10725/6937
dc.description.abstract Thermally induced stresses in composite steel-concrete bridges are higher than those experienced by their concrete and steel cousins, leading to significant damage in the concrete deck and corrosion of the steel reinforcement. Bridge design engineers use thermal profiles prescribed by codes such as AASHTO to predict future service stresses. A 3D finite element model is presented that investigates the temperature distribution in a case study bridge with pre-existing construction deck cracks. The non-linear transient simulation is performed using actual environmental loads for a geographic region with severe climate (North Dakota), and the resulting profile is compared to that of AASHTO. The results show the thermal gradient proposed by AASHTO to be overly conservative in cold regions. Existing models seem to ignore the nonlinearity of the thermal gradient, which can be critical for thermal stress calculations. The pre-service deck cracks appear to have a considerable effect on both the vertical and the longitudinal temperature distributions, and it is recommended that they be given careful consideration by design codes. en_US
dc.language.iso en en_US
dc.publisher ASCE en_US
dc.title Effect of the presence of pre-service construction cracks in concrete decks on the thermal profile of composite steel-concrete bridges in cold regions en_US
dc.type Conference Paper / Proceeding en_US
dc.author.school SOE en_US
dc.author.idnumber 199431340 en_US
dc.author.department Civil Engineering en_US
dc.description.embargo N/A en_US
dc.identifier.doi https://doi.org/10.1061/9780784481011.001 en_US
dc.identifier.ctation El Masri, O. Y., & Shdid, C. A. (2017). Effect of the Presence of Pre-Service Construction Cracks in Concrete Decks on the Thermal Profile of Composite Steel-Concrete Bridges in Cold Regions. In Congress on Technical Advancement 2017 (pp. 1-12). en_US
dc.author.email caesar.abishdid@lau.edu.lb en_US
dc.conference.date September 10–13, 2017 en_US
dc.conference.place Duluth, Minnesota en_US
dc.conference.title 17th International Conference on Cold Regions Engineering en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url https://ascelibrary.org/doi/abs/10.1061/9780784481011.001 en_US
dc.author.affiliation Lebanese American University en_US


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