Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examples

An analytical method and the closed-form expressions derived in a companion paper are used to evaluate the induced elastic bending moments and second-order deflections in slender prismatic columns with initial geometric imperfections (i.e., initial curvature and out-of-plumbness) and semirigid conne...

Full description

Autores:
Aristizabal-Ochoa, Jose Dario
Tipo de recurso:
Article of journal
Fecha de publicación:
2012
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/37299
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/37299
http://bdigital.unal.edu.co/27383/
Palabra clave:
Beam-columns
Bracing
Buckling
Columns
Computer Applications
Deflections
Design
Frames
Large Deflections
Loads
Reversals of Deflections
Second-order analysis
Stability
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
id UNACIONAL2_1bb57fe841193119d1bdb2eb2688abee
oai_identifier_str oai:repositorio.unal.edu.co:unal/37299
network_acronym_str UNACIONAL2
network_name_str Universidad Nacional de Colombia
repository_id_str
spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Aristizabal-Ochoa, Jose Dario1077fb0d-a25b-4ece-b437-531a6c1889a63002019-06-28T01:40:14Z2019-06-28T01:40:14Z2012https://repositorio.unal.edu.co/handle/unal/37299http://bdigital.unal.edu.co/27383/An analytical method and the closed-form expressions derived in a companion paper are used to evaluate the induced elastic bending moments and second-order deflections in slender prismatic columns with initial geometric imperfections (i.e., initial curvature and out-of-plumbness) and semirigid connections when the columns are subjected to eccentric axial loads at both ends. Comparisons of the induced elastic moments, the second-order deflections, and the critical loads obtained using the proposed approach, and those available in the technical literature for classic column cases are presented herein. Also, sensitivity studies and several examples are presented in detail which demonstrate the effectiveness and accuracy of the proposed closed-form equations and the importance of initial imperfections, semirigid connections, and lateral bracing on the second-order behavior and stability of beam-columns. Results obtained from the proposed equations are compared with those obtained using the FEM computer program ABAQUS, showing its simplicity and accuracy. The closed-form expressions can be used by researchers and structural engineers to investigate the effects of initial imperfections and semirigid connections on the elastic behavior of columns under heavy eccentric axial loads, including cases with relatively large deflections ( and lt; 0.1 times the column span).application/pdfspaUniversidad Nacional de Colombia Sede Medellínhttp://revistas.unal.edu.co/index.php/dyna/article/view/25196Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaDyna; Vol. 79, núm. 172 (2012); 18-19 DYNA; Vol. 79, núm. 172 (2012); 18-19 2346-2183 0012-7353Aristizabal-Ochoa, Jose Dario (2012) Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examples. Dyna; Vol. 79, núm. 172 (2012); 18-19 DYNA; Vol. 79, núm. 172 (2012); 18-19 2346-2183 0012-7353 .Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examplesArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTBeam-columnsBracingBucklingColumnsComputer ApplicationsDeflectionsDesignFramesLarge DeflectionsLoadsReversals of DeflectionsSecond-order analysisStabilityORIGINAL25196-106529-1-PB.pdfapplication/pdf2517496https://repositorio.unal.edu.co/bitstream/unal/37299/1/25196-106529-1-PB.pdf939e0a67492e2bc7a531118273845eccMD5125196-157438-1-PB.htmltext/html30139https://repositorio.unal.edu.co/bitstream/unal/37299/2/25196-157438-1-PB.htmlc80b8209caad19800a92a47399113c21MD52THUMBNAIL25196-106529-1-PB.pdf.jpg25196-106529-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg9717https://repositorio.unal.edu.co/bitstream/unal/37299/3/25196-106529-1-PB.pdf.jpg24c5a1c6336b76db4e1db06d9245bf98MD53unal/37299oai:repositorio.unal.edu.co:unal/372992023-01-14 23:04:18.617Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examples
title Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examples
spellingShingle Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examples
Beam-columns
Bracing
Buckling
Columns
Computer Applications
Deflections
Design
Frames
Large Deflections
Loads
Reversals of Deflections
Second-order analysis
Stability
title_short Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examples
title_full Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examples
title_fullStr Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examples
title_full_unstemmed Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examples
title_sort Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examples
dc.creator.fl_str_mv Aristizabal-Ochoa, Jose Dario
dc.contributor.author.spa.fl_str_mv Aristizabal-Ochoa, Jose Dario
dc.subject.proposal.spa.fl_str_mv Beam-columns
Bracing
Buckling
Columns
Computer Applications
Deflections
Design
Frames
Large Deflections
Loads
Reversals of Deflections
Second-order analysis
Stability
topic Beam-columns
Bracing
Buckling
Columns
Computer Applications
Deflections
Design
Frames
Large Deflections
Loads
Reversals of Deflections
Second-order analysis
Stability
description An analytical method and the closed-form expressions derived in a companion paper are used to evaluate the induced elastic bending moments and second-order deflections in slender prismatic columns with initial geometric imperfections (i.e., initial curvature and out-of-plumbness) and semirigid connections when the columns are subjected to eccentric axial loads at both ends. Comparisons of the induced elastic moments, the second-order deflections, and the critical loads obtained using the proposed approach, and those available in the technical literature for classic column cases are presented herein. Also, sensitivity studies and several examples are presented in detail which demonstrate the effectiveness and accuracy of the proposed closed-form equations and the importance of initial imperfections, semirigid connections, and lateral bracing on the second-order behavior and stability of beam-columns. Results obtained from the proposed equations are compared with those obtained using the FEM computer program ABAQUS, showing its simplicity and accuracy. The closed-form expressions can be used by researchers and structural engineers to investigate the effects of initial imperfections and semirigid connections on the elastic behavior of columns under heavy eccentric axial loads, including cases with relatively large deflections ( and lt; 0.1 times the column span).
publishDate 2012
dc.date.issued.spa.fl_str_mv 2012
dc.date.accessioned.spa.fl_str_mv 2019-06-28T01:40:14Z
dc.date.available.spa.fl_str_mv 2019-06-28T01:40:14Z
dc.type.spa.fl_str_mv Artículo de revista
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_2df8fbb1
dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/article
dc.type.version.spa.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.coar.spa.fl_str_mv http://purl.org/coar/resource_type/c_6501
dc.type.coarversion.spa.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.content.spa.fl_str_mv Text
dc.type.redcol.spa.fl_str_mv http://purl.org/redcol/resource_type/ART
format http://purl.org/coar/resource_type/c_6501
status_str publishedVersion
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/37299
dc.identifier.eprints.spa.fl_str_mv http://bdigital.unal.edu.co/27383/
url https://repositorio.unal.edu.co/handle/unal/37299
http://bdigital.unal.edu.co/27383/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv http://revistas.unal.edu.co/index.php/dyna/article/view/25196
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Dyna
Dyna
dc.relation.ispartofseries.none.fl_str_mv Dyna; Vol. 79, núm. 172 (2012); 18-19 DYNA; Vol. 79, núm. 172 (2012); 18-19 2346-2183 0012-7353
dc.relation.references.spa.fl_str_mv Aristizabal-Ochoa, Jose Dario (2012) Induced moments and lateral deflections in columns with initial imperfections and semirigid connections: ii) verification and examples. Dyna; Vol. 79, núm. 172 (2012); 18-19 DYNA; Vol. 79, núm. 172 (2012); 18-19 2346-2183 0012-7353 .
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
dc.rights.uri.spa.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia Sede Medellín
institution Universidad Nacional de Colombia
bitstream.url.fl_str_mv https://repositorio.unal.edu.co/bitstream/unal/37299/1/25196-106529-1-PB.pdf
https://repositorio.unal.edu.co/bitstream/unal/37299/2/25196-157438-1-PB.html
https://repositorio.unal.edu.co/bitstream/unal/37299/3/25196-106529-1-PB.pdf.jpg
bitstream.checksum.fl_str_mv 939e0a67492e2bc7a531118273845ecc
c80b8209caad19800a92a47399113c21
24c5a1c6336b76db4e1db06d9245bf98
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositorio Institucional Universidad Nacional de Colombia
repository.mail.fl_str_mv repositorio_nal@unal.edu.co
_version_ 1814090173099540480