Recent advances in the dynamic analysis of stiffened plates - Application to concrete or to composite steel-concrete structures

Sapountzakis, EJ

dc.contributor.author	Sapountzakis, EJ	en
dc.date.accessioned	2014-03-01T01:31:47Z
dc.date.available	2014-03-01T01:31:47Z
dc.date.issued	2009	en
dc.identifier.issn	18722121	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19920
dc.subject	Bending	en
dc.subject	Boundary element method	en
dc.subject	Creep	en
dc.subject	Deformable connection	en
dc.subject	Dynamic analysis	en
dc.subject	Elastic stiffened plate	en
dc.subject	Nonuniform torsion	en
dc.subject	Reinforced plate with beams	en
dc.subject	Ribbed plate	en
dc.subject	Shrinkage	en
dc.subject	Slab-and-beam structure	en
dc.subject	Vibrations	en
dc.subject	Warping	en
dc.subject.other	Bending	en
dc.subject.other	Deformable connection	en
dc.subject.other	Elastic stiffened plate	en
dc.subject.other	Nonuniform torsion	en
dc.subject.other	Reinforced plate with beams	en
dc.subject.other	Ribbed plate	en
dc.subject.other	Slab-and-beam structure	en
dc.subject.other	Vibrations	en
dc.subject.other	Warping	en
dc.subject.other	Building materials	en
dc.subject.other	Composite beams and girders	en
dc.subject.other	Concrete buildings	en
dc.subject.other	Concretes	en
dc.subject.other	Creep	en
dc.subject.other	Differential equations	en
dc.subject.other	Dynamic analysis	en
dc.subject.other	Metal analysis	en
dc.subject.other	Numerical methods	en
dc.subject.other	Plates (structural components)	en
dc.subject.other	Prestressed beams and girders	en
dc.subject.other	Reinforced concrete	en
dc.subject.other	Shrinkage	en
dc.subject.other	Steel	en
dc.subject.other	Structural design	en
dc.subject.other	Torsional stress	en
dc.subject.other	Traction (friction)	en
dc.subject.other	Weaving	en
dc.subject.other	Boundary element method	en
dc.title	Recent advances in the dynamic analysis of stiffened plates - Application to concrete or to composite steel-concrete structures	en
heal.type	journalArticle	en
heal.identifier.primary	10.2174/187221209787259956	en
heal.identifier.secondary	http://dx.doi.org/10.2174/187221209787259956	en
heal.publicationDate	2009	en
heal.abstract	In this paper, an improved model for the dynamic analysis of reinforced concrete plates stiffened by arbitrarily placed parallel reinforced concrete or steel beams with deformable connection taking into account the influence of creep and shrinkage effects relative with the time of the casting and the time of the loading of the plate and the beams 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. 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 second-order effects. 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. Both free and forced damped or undamped transverse vibrations are considered and numerical examples with great practical interest with patent discussion are presented. © 2009 Bentham Science Publishers Ltd.	en
heal.journalName	Recent Patents on Engineering	en
dc.identifier.doi	10.2174/187221209787259956	en
dc.identifier.volume	3	en
dc.identifier.issue	1	en
dc.identifier.spage	39	en
dc.identifier.epage	59	en