An investigation into the usefulness of a method of analysis for straight, uniform-section, box-girder bridge decks with side cantilevers

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dc.contributor.advisorDe Kock, M Oen_ZA
dc.contributor.authorRetief, F Jen_ZA
dc.date.accessioned2014-10-17T07:25:10Z
dc.date.available2014-10-17T07:25:10Z
dc.date.issued1991en_ZA
dc.descriptionBibliography: leaf 110.en_ZA
dc.description.abstractMaisel and Ro11, in a technical report for the London Cement and Concrete Association, proposed a method of analysis, in the form of an extension of simple beam theory, which is suitable for application to straight, rectangular, single-cell, uniform-section concrete box-girder bridge-decks with side cantilevers. This method only requires a calculator for execution and if a computer is used, results for maximum stresses may be obtained almost immediately. The authors state that since their method does not discretize the structure as in the case of finite element methods, the requirements in terms of computer capacity and therefore computation time is considerably reduced. Maisel, in a later Cement and Concrete Association development report, examining the use of small computer capacity for the analysis of concrete boxbeams, indicates that the hand method was being programmed. Since the usefulness of such a method is obvious, especially if available in program form, it remains to confirm the accuracy and range of application of the method. For this purpose, four Perspex box-girder models of different depths were constructed and tested. Strain gauges were fitted at the mid- and quarter-span sections and readings for four to five loadcases per model were taken. Several problems relating to the creep and thermal properties of Perspex had to be overcome during the experimental phase. Strain values obtained from the model tests were converted to stresses and these were compared to the stresses calculated by the recommended method of analysis proposed by Maisel and Ro11. Genera lly, the exper imental results showed a very good correlation with the analytical values and thus adequately confirmed the accuracy of the method.en_ZA
dc.identifier.apacitationRetief, F. J. (1991). <i>An investigation into the usefulness of a method of analysis for straight, uniform-section, box-girder bridge decks with side cantilevers</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering. Retrieved from http://hdl.handle.net/11427/8450en_ZA
dc.identifier.chicagocitationRetief, F J. <i>"An investigation into the usefulness of a method of analysis for straight, uniform-section, box-girder bridge decks with side cantilevers."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 1991. http://hdl.handle.net/11427/8450en_ZA
dc.identifier.citationRetief, F. 1991. An investigation into the usefulness of a method of analysis for straight, uniform-section, box-girder bridge decks with side cantilevers. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Retief, F J AB - Maisel and Ro11, in a technical report for the London Cement and Concrete Association, proposed a method of analysis, in the form of an extension of simple beam theory, which is suitable for application to straight, rectangular, single-cell, uniform-section concrete box-girder bridge-decks with side cantilevers. This method only requires a calculator for execution and if a computer is used, results for maximum stresses may be obtained almost immediately. The authors state that since their method does not discretize the structure as in the case of finite element methods, the requirements in terms of computer capacity and therefore computation time is considerably reduced. Maisel, in a later Cement and Concrete Association development report, examining the use of small computer capacity for the analysis of concrete boxbeams, indicates that the hand method was being programmed. Since the usefulness of such a method is obvious, especially if available in program form, it remains to confirm the accuracy and range of application of the method. For this purpose, four Perspex box-girder models of different depths were constructed and tested. Strain gauges were fitted at the mid- and quarter-span sections and readings for four to five loadcases per model were taken. Several problems relating to the creep and thermal properties of Perspex had to be overcome during the experimental phase. Strain values obtained from the model tests were converted to stresses and these were compared to the stresses calculated by the recommended method of analysis proposed by Maisel and Ro11. Genera lly, the exper imental results showed a very good correlation with the analytical values and thus adequately confirmed the accuracy of the method. DA - 1991 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1991 T1 - An investigation into the usefulness of a method of analysis for straight, uniform-section, box-girder bridge decks with side cantilevers TI - An investigation into the usefulness of a method of analysis for straight, uniform-section, box-girder bridge decks with side cantilevers UR - http://hdl.handle.net/11427/8450 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/8450
dc.identifier.vancouvercitationRetief FJ. An investigation into the usefulness of a method of analysis for straight, uniform-section, box-girder bridge decks with side cantilevers. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 1991 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/8450en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Civil Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherCivil Engineeringen_ZA
dc.titleAn investigation into the usefulness of a method of analysis for straight, uniform-section, box-girder bridge decks with side cantileversen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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