Yazar "Roberts, T. M." seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • Küçük Resim
    Öğe
    Comparing experimental deformations of steel-concrete-steel sandwich beams with full and partial interaction theories
    (Academic Journals, 2010) Doğan, Orhan; Roberts, T. M.
    In this study, experimental deformation results (that is beam deflection and slip between layers) of steel-concrete-steel sandwich beams (double skin composite beam - DSC) are compared with full and partial interaction theories. The flexibility of shear stud connectors on both tension and compression faces is taken into account in the partial interaction analysis including the influence of frictional forces between the concrete and external steel plates at the supports and load points. Quasi-static test results on DSC beams are compared with the theoretical solutions based on partial interaction theory assuming realistic material and shear connector properties. The comparison of results indicates that the proposed theoretical method shows good correlation with real behaviour and may be reliably used for the analysis of simply supported DSC beams.
  • Küçük Resim
    Öğe
    Comparison of experimental internal forces with full and partial interaction theories in steel-concrete-steel sandwich beams
    (Academic Journals, 2010) Doğan, Orhan; Roberts, T. M.
    Steel-concrete-steel sandwich beam (double skin composite beam - DSC) experimental results including axial forces in steel plates and shear forces between the layers are compared with full and partial interaction theories. The flexibility of shear stud connectors on both tension and compression faces are taken into account in the partial interaction analysis including the influence of frictional forces between the concrete and external steel plates at the supports and load points. Quasi-static test results on DSC beams are compared with the theoretical solutions based on partial interaction theory assuming realistic material and shear connector properties. The comparison of results indicates that the proposed theoretical method shows good correlation with real behaviour and may be reliably used for the analysis of simply supported DSC beams.
  • Küçük Resim
    Öğe
    Fatigue performance and stiffness variation of stud connectors in steel-concrete-steel sandwich systems
    (Elsevier Sci Ltd, 2012) Doğan, Orhan; Roberts, T. M.
    In this this study, a series of fatigue tests on six nominally identical push-shear specimens is conducted. The test specimens were subjected to an initial quasi-static test, up to a predefined maximum load, followed by a fatigue test to failure. For all the fatigue tests the mean applied load was the same while the load range varied to induce fatigue failure. The push-shear fatigue tests indicated that stiffness of the shear connections is gradually decreased during the test. Overall, the test results revealed that the lifetime of steel-concrete-steel sandwich systems under cycling loads could be predicted beforehand through the evaluation of the stiffness reduction in shear connections. (C) 2011 Elsevier Ltd. All rights reserved.