Variable friction cladding connection for seismic mitigation

dc.contributor.author Gong, Yongqiang
dc.contributor.author Cao, Liang
dc.contributor.author Laflamme, Simon
dc.contributor.author Ricles, James
dc.contributor.author Quiel, Spencer
dc.contributor.author Taylor, Douglas
dc.contributor.department Civil, Construction and Environmental Engineering
dc.contributor.department Electrical and Computer Engineering
dc.date 2019-05-17T21:59:00.000
dc.date.accessioned 2020-06-30T01:12:57Z
dc.date.available 2020-06-30T01:12:57Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2019
dc.date.issued 2019-06-15
dc.description.abstract <p>Cladding systems are conventionally designed to serve an architectural purpose and provide environmental protection for building occupants. Recent research has been conducted to enhance structural resiliency by leveraging cladding systems against man-made and natural hazards. The vast majority of the work includes the use of sacrificial cladding panels and energy dissipating connectors. These passive protection systems, though effective, have typically targeted a single hazard one-at-a-time because of their limited frequency bandwidths. A novel semi-active friction connection has been previously proposed by the authors to leverage the cladding motion for mitigating blast and wind hazards. This semi-active friction device, termed variable friction cladding connection (VFCC), is designed to laterally connect cladding elements to the structural system and dissipate energy via friction. Its variable friction force is generated onto the sliding friction plates upon which a variable normal force is applied via actuated toggles. Because of its semi-active capabilities, the VFCC could be used over wide-band excitation frequencies and is thereby, an ideal candidate for multiple hazard mitigation. The VFCC in its passive in situ mode has been previously designed to mitigate air-blast effects towards the structure and its semi-active scheme has been applied to wind hazard mitigation. In this paper, a motion-based design (MBD) procedure is developed to apply the VFCC to seismic hazard mitigation, completing its application against multiple hazards. The MBD procedure begins with the quantification of seismic load and performance objectives, and afterwards, dynamic parameters of the cladding connection are selected based on non-dimensional analytical solutions. Simulations are conducted on two example buildings to verify and demonstrate the motion-based design methodology. Results show the semi-actively controlled VFCC is capable of mitigating the seismic vibrations of structures, demonstrating the promise of the semi-active cladding system for field applications.</p>
dc.description.comments <p>This is a manuscript of an article published as Gong, Yongqiang, Liang Cao, Simon Laflamme, James Ricles, Spencer Quiel, and Douglas Taylor. "Variable friction cladding connection for seismic mitigation." <em>Engineering Structures</em> 189 (2019): 243-259. DOI: <a href="http://dx.doi.org/10.1016/j.engstruct.2019.03.066" target="_blank">10.1016/j.engstruct.2019.03.066</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ccee_pubs/224/
dc.identifier.articleid 1224
dc.identifier.contextkey 14181662
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ccee_pubs/224
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/13875
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ccee_pubs/224/2019_LaflammeSimon_VariableFriction.pdf|||Fri Jan 14 22:43:16 UTC 2022
dc.source.uri 10.1016/j.engstruct.2019.03.066
dc.subject.disciplines Geotechnical Engineering
dc.subject.disciplines Structural Engineering
dc.subject.keywords Motion-based design
dc.subject.keywords cladding connection
dc.subject.keywords seismic mitigation
dc.subject.keywords semi-active control
dc.subject.keywords variable friction
dc.subject.keywords high performance control system
dc.title Variable friction cladding connection for seismic mitigation
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 84547f08-8710-4934-b91e-ba5f46ab9abe
relation.isOrgUnitOfPublication 933e9c94-323c-4da9-9e8e-861692825f91
relation.isOrgUnitOfPublication a75a044c-d11e-44cd-af4f-dab1d83339ff
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