The influence of local stresses on the behavior of concrete beams

dc.contributor.advisorKrahl, Nat W.en_US
dc.creatorDurrani, M. Khaliden_US
dc.date.accessioned2016-04-22T21:58:08Zen_US
dc.date.available2016-04-22T21:58:08Zen_US
dc.date.issued1964en_US
dc.description.abstractThis thesis reports an analytical investigation into the importance of local stresses in influencing the behavior of concrete beams under combined moment and shear. A method of analysis which has recently become available was used to make calculations predicting the behavior of certain beams which were tested earlier by others and reported in the literature. Results of these calculations were compared with test results and also with computations made earlier which neglected the effect of local stresses. In all of the beams considered, the local stresses were created by the application of loads and reactions through bearing on the top and bottom surfaces of the beams. All of these beams were rectangular beams with longitudinal reinforcement but without web reinforcement. This investigation indicates that local stresses created by bearing tend to stabilize the propagation of tensile cracks as they approach the load points, and to increase predictions of beam ultimate load capacity, but usually the magnitude of the influence is small. One particular beam and crack path were studied for which consideration of local stresses gave rise to a significantly different prediction of failure from that predicted when local stresses were neglected, but in all other cases the predictions of behavior at failure were very similar, both with and without local stresses. As expected from a consideration of Saint-Venant's principle, the quantitative effect of local stresses is negligible at considerable distances from the loads and reactions. In overall effect, the influence of local stresses on beam behavior seems less important than certain other factors, for example, the amount of shearing force transferred across a tensile crack by dowel action of the longitudinal reinforcement.en_US
dc.format.digitalOriginreformatted digitalen_US
dc.format.extent105 ppen_US
dc.identifier.callnoThesis C.E. 1964 DURRANIen_US
dc.identifier.citationDurrani, M. Khalid. "The influence of local stresses on the behavior of concrete beams." (1964) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/89679">https://hdl.handle.net/1911/89679</a>.en_US
dc.identifier.digitalRICE0710en_US
dc.identifier.urihttps://hdl.handle.net/1911/89679en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.titleThe influence of local stresses on the behavior of concrete beamsen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentChemical and Biomolecular Engineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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