Modelling local scour around bridge piers using TELEMAC

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dc.contributor.advisorArmitage, Neilen_ZA
dc.contributor.authorKabir, Alamgiren_ZA
dc.date.accessioned2014-08-28T09:09:47Z
dc.date.available2014-08-28T09:09:47Z
dc.date.issued2005en_ZA
dc.description.abstractScour at bridge crossings is a major cause of bridge failure. There are several different types of scour such as general scour, constriction scour and local scour. One of the most serious types is local scour which occurs as a result of vortex formation around bridge piers and abutments (Hoffmans & Verheij, 1997; Raudkivi, 1998; Melville & Coleman, 2000; Richardson & Davis, 2001; Armitage & McGahey, 2003). Local scour is also one of the most difficult to predict accurately. If not adequately designed for, local scour of a riverbed at a bridge pier may become deep enough to undermine the pier foundation and eventually cause the bridge to collapse. Complete protection against scour is expensive and therefore not a favourable design option. It is generally cheaper to ensure that the foundation lies below the maximum expected scour depth. Traditionally, the maximum scour depth is predicted from empirical equations derived from simple laboratory tests without much regard for local conditions. Alternatively, smaIlscale hydraulic models, which are laborious and time intensive, are widely used. In view of the above, increasing attention is being paid to the use of Computational Fluid Dynamics (CFD) based modelling for the prediction of local scour and its opposite, local deposition. The ever-improving capabilities of computers and the increasing availability of powerful and flexible CFD codes have further assisted in this process. This study is a contribution in this direction.en_ZA
dc.identifier.apacitationKabir, A. (2005). <i>Modelling local scour around bridge piers using TELEMAC</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering. Retrieved from http://hdl.handle.net/11427/6683en_ZA
dc.identifier.chicagocitationKabir, Alamgir. <i>"Modelling local scour around bridge piers using TELEMAC."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 2005. http://hdl.handle.net/11427/6683en_ZA
dc.identifier.citationKabir, A. 2005. Modelling local scour around bridge piers using TELEMAC. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Kabir, Alamgir AB - Scour at bridge crossings is a major cause of bridge failure. There are several different types of scour such as general scour, constriction scour and local scour. One of the most serious types is local scour which occurs as a result of vortex formation around bridge piers and abutments (Hoffmans & Verheij, 1997; Raudkivi, 1998; Melville & Coleman, 2000; Richardson & Davis, 2001; Armitage & McGahey, 2003). Local scour is also one of the most difficult to predict accurately. If not adequately designed for, local scour of a riverbed at a bridge pier may become deep enough to undermine the pier foundation and eventually cause the bridge to collapse. Complete protection against scour is expensive and therefore not a favourable design option. It is generally cheaper to ensure that the foundation lies below the maximum expected scour depth. Traditionally, the maximum scour depth is predicted from empirical equations derived from simple laboratory tests without much regard for local conditions. Alternatively, smaIlscale hydraulic models, which are laborious and time intensive, are widely used. In view of the above, increasing attention is being paid to the use of Computational Fluid Dynamics (CFD) based modelling for the prediction of local scour and its opposite, local deposition. The ever-improving capabilities of computers and the increasing availability of powerful and flexible CFD codes have further assisted in this process. This study is a contribution in this direction. DA - 2005 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2005 T1 - Modelling local scour around bridge piers using TELEMAC TI - Modelling local scour around bridge piers using TELEMAC UR - http://hdl.handle.net/11427/6683 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/6683
dc.identifier.vancouvercitationKabir A. Modelling local scour around bridge piers using TELEMAC. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 2005 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/6683en_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.titleModelling local scour around bridge piers using TELEMACen_ZA
dc.typeThesis
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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