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2 cell box culvert

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  University of Kentucky  UKnowledge eses and Dissertations--Civil EngineeringCivil Engineering2018 EVALUATION OF 2-CELL RC BOX CULVERTS Hossein Sharif University of Kentucky  , hossein.shari@uky.eduDigital Object Identier: hps://doi.org/10.13023/ETD.2018.139 Right click to open a feedback form in a new tab to let us know how this document benets you. is Master's esis is brought to you for free and open access by the Civil Engineering at UKnowledge. It has been accepted for inclusion in esesand Dissertations--Civil Engineering by an authorized administrator of UKnowledge. For more information, please contactUKnowledge@lsv.uky.edu. Recommended Citation Shari, Hossein, EVALUATION OF 2-CELL RC BOX CULVERTS (2018). Teses and Dissertations--Civil Engineering  . 66.hps://uknowledge.uky.edu/ce_etds/66  STUDENT AGREEMENT: I represent that my thesis or dissertation and abstract are my srcinal work. Proper aribution has beengiven to all outside sources. I understand that I am solely responsible for obtaining any needed copyrightpermissions. I have obtained needed wrien permission statement(s) from the owner(s) of each third-party copyrighted maer to be included in my work, allowing electronic distribution (if such use is notpermied by the fair use doctrine) which will be submied to UKnowledge as Additional File.I hereby grant to e University of Kentucky and its agents the irrevocable, non-exclusive, and royalty-free license to archive and make accessible my work in whole or in part in all forms of media, now orhereaer known. I agree that the document mentioned above may be made available immediately for worldwide access unless an embargo applies.I retain all other ownership rights to the copyright of my work. I also retain the right to use in future works (such as articles or books) all or part of my work. I understand that I am free to register thecopyright to my work. REVIEW, APPROVAL AND ACCEPTANCE e document mentioned above has been reviewed and accepted by the student’s advisor, on behalf of the advisory commiee, and by the Director of Graduate Studies (DGS), on behalf of the program; we verify that this is the nal, approved version of the student’s thesis including all changes required by theadvisory commiee. e undersigned agree to abide by the statements above.Hossein Shari, StudentDr. Issam Harik, Major ProfessorDr. Yi-Tin Wang, Director of Graduate Studies    EVALUATION OF 2-CELL RC BOX CULVERTS THESIS A thesis submitted in partial fulfilment of the requirement for the degree of Master of Science in Civil Engineering in the College of Engineering at the University of Kentucky By Hossein Sharifi Lexington Kentucky Director: Dr. Issam Harik, Professor of Civil and Environmental Engineering Lexington Kentucky 2018 Copyright© Hossein Sharifi 2018    ABSTRACT OF THESIS EVALUATION OF 2-CELL RC BOX CULVERTS Reinforced Concrete Box Culverts (RCBCs) are an integral part of the national and international transportation infrastructure. The National Bridge Inventory Standards (NBIS) requires that all bridges, which include culverts with spans > 20 ft. (6.1 m), be load rated for safe load carrying capacity   in accordance with the AASHTO Manual for Bridge Evaluation (MBE). In Kentucky, the Transportation Cabinet manages more than 15,500  bridges, of which almost 1,400 are bridge size culverts. Of the 1241 bridge size RCBCs that were being evaluated in Kentucky between 2015 and 2018, 846 were 2-cell culverts (or 68%). The objective in this study is to evaluate 2-cell RCBCs using the finite element (FE) method and to propose dead load and live load demand equations that can be used to determine the capacity demand ratio (C/D) and the load rating. The results indicate that the maximum dead load forces (positive and negative moments, and shear) vary linearly with respect to an increase in fill height, while the variation is bi-linear for the maximum live load forces. The proposed equations are derived in terms of the clear span and fill height. The results also indicated that, for fill heights greater than 10 ft (3 m), the maximum live load positive bending moments are less than 10% of their dead load counterparts. The  primary advantage of the proposed equations lies in their simple formulation when analyzing and designing 2-cell culverts, which in turn alleviates the need to conduct a detailed finite element analysis to determine the maximum forces in 2-cell RCBCs. KEYWORDS: REINFORCED CONCRETE, BOX CULVERT, FINITE ELEMENT METHOD, LIVE LOADS, DEAD LOADS, FILL HEIGHT Hossein Sharifi 04/24/2018
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