An improved model for the analysis of plates stiffened by parallel beams with deformable connection

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dc.contributor.author Sapountzakis, EJ en
dc.contributor.author Mokos, VG en
dc.date.accessioned 2014-03-01T01:27:54Z
dc.date.available 2014-03-01T01:27:54Z
dc.date.issued 2008 en
dc.identifier.issn 0045-7949 en
dc.identifier.uri http://hdl.handle.net/123456789/18626
dc.subject Boundary element method en
dc.subject Deformable connection en
dc.subject Elastic stiffened plate en
dc.subject Nonuniform torsion en
dc.subject Slab-and-beam structure en
dc.subject Warping en
dc.subject.classification Computer Science, Interdisciplinary Applications en
dc.subject.classification Engineering, Civil en
dc.subject.other Boundary value problems en
dc.subject.other Deformation en
dc.subject.other Differential equations en
dc.subject.other Finite element method en
dc.subject.other Initial value problems en
dc.subject.other Modal analysis en
dc.subject.other Numerical analysis en
dc.subject.other Numerical methods en
dc.subject.other Plates (structural components) en
dc.subject.other Separation en
dc.subject.other Torsional stress en
dc.subject.other Traction (friction) en
dc.subject.other Deformable connection en
dc.subject.other Elastic stiffened plate en
dc.subject.other Nonuniform torsion en
dc.subject.other Slab-and-beam structure en
dc.subject.other Warping en
dc.subject.other Boundary element method en
dc.title An improved model for the analysis of plates stiffened by parallel beams with deformable connection en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.compstruc.2008.06.003 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.compstruc.2008.06.003 en
heal.language English en
heal.publicationDate 2008 en
heal.abstract In this paper a general solution for the analysis of plates stiffened by arbitrarily placed parallel beams of arbitrary doubly symmetric cross section with deformable connection subjected to an arbitrary loading is presented. According to the proposed model, the stiffening beams are isolated from the plate by sections in the lower outer surface of the plate, making the hypothesis that the plate and the beams can slip in all directions of the connection without separation (i.e. uplift neglected) and taking into account the arising tractions in all directions at the fictitious interfaces. These tractions are integrated with respect to each half of the interface width resulting two interface lines, along which the loading of the beams as well as the additional loading of the plate is defined. Their unknown distribution is established by applying continuity conditions in all directions at the interfaces taking into account their relation with the interface slip through the shear connector stiffness. Any distribution of connectors in each direction of the interfaces can be handled. The utilization of two interface lines for each beam enables the nonuniform distribution of the interface transverse shear forces and the nonuniform torsional response of the beams to be taken into account describing better in this way the actual response of the plate-beams system. The analysis of both the plate and the beams is accomplished on their deformed shape taking into account the arising inplane forces of the plate as well as the axial and transverse forces of the beams. Six boundary value problems are formulated and solved using the analog equation method (AEM), a BEM based method. The solution of the aforementioned plate and beam problems, which are nonlinearly coupled, is achieved using iterative numerical methods. The adopted model permits the evaluation of the shear forces at the interfaces in both directions, the knowledge of which is very important in the design of prefabricated ribbed plates. Three additional finite element models using beam, shell or solid finite elements are also employed for the verification of the accuracy of the results of the proposed model. (C) 2008 Elsevier Ltd. All rights reserved. en
heal.journalName Computers and Structures en
dc.identifier.doi 10.1016/j.compstruc.2008.06.003 en
dc.identifier.isi ISI:000261365000007 en
dc.identifier.volume 86 en
dc.identifier.issue 23-24 en
dc.identifier.spage 2166 en
dc.identifier.epage 2181 en

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