Three dimensional simulation of partially encased beams at elevated temperatures

Piloto, P.A.G.; Almeida, David; Ramos Gavilán, Ana Belén; Mesquita, L.M.R.

Publication

Three dimensional simulation of partially encased beams at elevated temperatures

2015Conference object

dc.contributor.author	Piloto, P.A.G.
dc.contributor.author	Almeida, David
dc.contributor.author	Ramos Gavilán, Ana Belén
dc.contributor.author	Mesquita, L.M.R.
dc.date.accessioned	2018-04-06T14:41:26Z
dc.date.available	2018-04-06T14:41:26Z
dc.date.issued	2015
dc.description.abstract	Partially Encased Beams (PEBs) are composite steel and concrete elements in which the web of the steel section is encased by reinforced concrete. The experimental investigation was already verified under fire and under elevated temperatures [1-2]. The bending resistance for three bending point configuration, at four temperature levels (20, 200, 400 and 600 ºC) is determined, based on the three dimensional finite element model, with precise detail of each component (steel profile, reinforcement, stirrups and concrete). The solution method is incremental and iterative (arc length), based on geometric and material non-linear analysis (ANSYS), using reduced integration method. The model considers perfect contact between steel and concrete. The material model assumes plasticity. The imperfection mode was based on the elastic stability solution, also performed with finite element method (ANSYS). Two types of stirrups were considered: welded to the web (PEBA) and welded to the flanges (PEBB), three different lengths (2.5, 4.0 and 5.5 m) and three types of cross section dimensions were simulated, based on the dimensions of IPE100, IPE200 and IPE300 steel profiles. A total of 72 models were simulated, showing conservative results with respect to the simple calculation method of EN1994-1-2. The bending resistance of the numerical results was determined for different force events, giving the opportunity to compare the ultimate bending moment. Results are in accordance to the new formula presented by Vila Real et al. [3] and adapted to composite beams.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Piloto, P.A.G.; Almeida, David; Ramos, A.B. Gavilán; Mesquita, L.M.R (2015). Three dimensional simulation of partially encased beams at elevated temperatures. In Congresso de Métodos Numéricos em Engenharia. Congresso de Métodos Numéricos em Engenharia. ISBN 978-989-99410-0-7	pt_PT
dc.identifier.isbn	978-989-99410-0-7
dc.identifier.uri	http://hdl.handle.net/10198/16739
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Elevated temperature	pt_PT
dc.subject	Partially encased beams	pt_PT
dc.subject	Composite steel and concrete	pt_PT
dc.subject	Numerical simulation	pt_PT
dc.subject	Bending resistance	pt_PT
dc.title	Three dimensional simulation of partially encased beams at elevated temperatures	pt_PT
dc.type	conference object
dspace.entity.type	Publication
oaire.citation.conferencePlace	Instituto Superior Técnico, Universidade de Lisboa	pt_PT
oaire.citation.title	Congresso de Métodos Numéricos em Engenharia	pt_PT
person.familyName	Piloto
person.familyName	Mesquita
person.givenName	Paulo A.G.
person.givenName	Luís M.R.
person.identifier	1339117
person.identifier.ciencia-id	0519-449D-6F13
person.identifier.ciencia-id	401E-2FEC-8303
person.identifier.orcid	0000-0003-2834-0501
person.identifier.orcid	0000-0002-2385-4282
person.identifier.rid	B-4866-2008
person.identifier.rid	F-2269-2010
person.identifier.scopus-author-id	6506406159
person.identifier.scopus-author-id	8585923500
rcaap.rights	openAccess	pt_PT
rcaap.type	conferenceObject	pt_PT
relation.isAuthorOfPublication	baaee084-ab97-4c95-b636-24ab6bab0e3e
relation.isAuthorOfPublication	3d08baba-b032-42c4-8244-94672c4611a1
relation.isAuthorOfPublication.latestForDiscovery	baaee084-ab97-4c95-b636-24ab6bab0e3e