Parametric study on seismic behaviour of dual-concentrically braced steel frames

Bibliographic Details
Main Author: Jovaševic, Slobodanka
Publication Date: 2015
Format: Master thesis
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: https://hdl.handle.net/10316/38642
Summary: Dissertação de Mestrado em Construção Metálica e Mista apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.
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spelling Parametric study on seismic behaviour of dual-concentrically braced steel framessteel jointsD-CBFspushover analysisincremental dynamic analysis (IDA)Dissertação de Mestrado em Construção Metálica e Mista apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.The earthquake resistance design plays an essential role in the design of steel structures. Cyclic behaviour of beam-to-column in crucial in seismic behaviour of moment resisting steel frames. At the moment, the European design code in practice does not provide analytical tools to predict rotational capacity and cyclic performance of selected connection typology, but the code requires design supported by experimental testing or existing data on experimental tests performed on similar connections, what is unfeasible from designer’s point of view. A European project has recently been started with the aim to develop design tool with typical beam-to-column connections used in European practice. In that way, designers will be able to directly use pre-qualified connection without performing experimental tests or literature reviews. One part of this European project is to estimate the seismic demand of the joints in typical D-CBF frames. In order to achieve these objectives seismic performance and dynamic response were estimated on basic of non-linear static analysis and non-linear time history analysis. Numerical models were create in order to perform non-linear static and dynamic analysis using OPENSEES software. Both analysis were performed in accordance with current European design code. The results of non-linear static analysis are presented in form of pushover curve and schematic illustration of formed plastic hinges. Dynamic response was estimated in term of i) maximum floor acceleration, ii) maximum interstorey drift ratio, iii) residual interstorey drift ratio and iv) maximum beam rotation ratio (at the exterior, one-side beam-column joints) at three performance levels: design (D), near collapse (NC) and twice near collapse (2xNC). As main conclusion, the analyses have showed that lateral resistance of D-CBFs is suddenly decrease when brace in compression buckles. This decrease is immediately followed by an increase of lateral stiffness. In seismic demand between selected parameters an important rule have hazard level and height of a structure.2015-01-22info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttps://hdl.handle.net/10316/38642https://hdl.handle.net/10316/38642TID:201659573engJovaševic, Slobodankainfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2022-01-21T17:17:23Zoai:estudogeral.uc.pt:10316/38642Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T05:18:23.339727Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Parametric study on seismic behaviour of dual-concentrically braced steel frames
title Parametric study on seismic behaviour of dual-concentrically braced steel frames
spellingShingle Parametric study on seismic behaviour of dual-concentrically braced steel frames
Jovaševic, Slobodanka
steel joints
D-CBFs
pushover analysis
incremental dynamic analysis (IDA)
title_short Parametric study on seismic behaviour of dual-concentrically braced steel frames
title_full Parametric study on seismic behaviour of dual-concentrically braced steel frames
title_fullStr Parametric study on seismic behaviour of dual-concentrically braced steel frames
title_full_unstemmed Parametric study on seismic behaviour of dual-concentrically braced steel frames
title_sort Parametric study on seismic behaviour of dual-concentrically braced steel frames
author Jovaševic, Slobodanka
author_facet Jovaševic, Slobodanka
author_role author
dc.contributor.author.fl_str_mv Jovaševic, Slobodanka
dc.subject.por.fl_str_mv steel joints
D-CBFs
pushover analysis
incremental dynamic analysis (IDA)
topic steel joints
D-CBFs
pushover analysis
incremental dynamic analysis (IDA)
description Dissertação de Mestrado em Construção Metálica e Mista apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-22
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/10316/38642
https://hdl.handle.net/10316/38642
TID:201659573
url https://hdl.handle.net/10316/38642
identifier_str_mv TID:201659573
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
_version_ 1833602314722607104

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