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dc.contributor.authorSendanayake, Sukhi V
dc.contributor.authorThambiratnam, David P
dc.contributor.authorPerera, Nimal
dc.contributor.authorChan, Tommy
dc.contributor.authorAghdamy, Sanam
dc.date.accessioned2019-11-07T03:28:06Z
dc.date.available2019-11-07T03:28:06Z
dc.date.issued2019
dc.identifier.issn2405-8440
dc.identifier.urihttp://hdl.handle.net/10072/388960
dc.description.abstractSteel modular building structures are being increasingly adopted for a variety of building applications since their method of construction, despite being relatively new, offers many benefits over conventional constructional methods. Even though their behaviour under gravity (dead and live) loads is generally well understood, their response to lateral dynamic loads such as seismic and wind loads, is relatively less known. Due to their unique structural detailing, their structural response and failure patterns under lateral dynamic loading can vary considerably from that exhibited by conventional structures. Limited research has shown that under lateral loadings, modular structures tend to fail at the columns which are critical members whose failure can lead to partial or total collapse of the structure. This paper aims to mitigate this by shifting the failure away from the columns to inter-modular connections which can be allowed to deform in a ductile manner. Towards this end, this paper proposes two innovative inter-modular connections and investigates their performance under monotonic and cyclic lateral loading using comprehensive validated numerical techniques. The proposed connections have an additional steel plate and resilient layers to provide increased ductility and dissipation of seismic energy with desired ductile failure mechanisms. Three-dimensional numerical models of the proposed connections are developed in ABAQUS software considering geometric and material nonlinearities, as well as contact formulations to accurately capture their response to the lateral loads and failure propagations. The numerical model is verified based on experimental results in the literature and used for extensive parametric studies. Seismic reliance of the proposed connections in terms of ductility, failure patterns, and energy absorption are compared with those of a standard inter-modular connection currently used in modular buildings. The outcome of this study demonstrates that the proposed connections have superior dynamic performances compared to the standard inter-modular connections in use today. New information generated through this study will enable to improve life safety and dynamic performance of modular building structures under typical gravity loads as well as under seismic loading.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.publisher.urihttps://www.cell.com/heliyon/fulltext/S2405-8440(19)36411-4
dc.relation.ispartofpagefrome02751:1
dc.relation.ispartofpagetoe02751:19
dc.relation.ispartofissue11
dc.relation.ispartofjournalHeliyon
dc.relation.ispartofvolume5
dc.subject.fieldofresearchEngineering Design
dc.subject.fieldofresearchStructural Engineering
dc.subject.fieldofresearchNumerical Modelling and Mechanical Characterisation
dc.subject.fieldofresearchDynamics, Vibration and Vibration Control
dc.subject.fieldofresearchcode1204
dc.subject.fieldofresearchcode090506
dc.subject.fieldofresearchcode091307
dc.subject.fieldofresearchcode091304
dc.titleSeismic mitigation of steel modular building structures through innovative inter-modular connections
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationSendanayake, SV; Thambiratnam, DP; Perera, N; Chan, T; Aghdamy, S, Seismic mitigation of steel modular building structures through innovative inter-modular connections, Heliyon, 2019, 5 (11), pp. e02751:1-e02751:19
dcterms.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.date.updated2019-11-05T01:45:31Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorAghdamy, Sanam


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