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dc.contributor.author
Barlek Mendoza, Pablo Mariano
dc.contributor.author
Ambrosini, Ricardo Daniel
dc.contributor.author
Luccioni, Bibiana Maria
dc.date.available
2021-12-02T14:06:04Z
dc.date.issued
2021-05
dc.identifier.citation
Barlek Mendoza, Pablo Mariano; Ambrosini, Ricardo Daniel; Luccioni, Bibiana Maria; Energy dissipation by friction for sliding blocks subjected to near-fault seismic base motion; Techno-Press; Smart Structures And Systems; 27; 5; 5-2021; 819-836
dc.identifier.issn
1738-1584
dc.identifier.uri
http://hdl.handle.net/11336/147939
dc.description.abstract
The objective of this study was to determine friction ratios that maximize energy dissipation on a seismic damper. The aforementioned friction damper basically consists of mass blocks that are able to slide on a flat surface. To carry out this analysis, a numerical-experimental approach was used. Firstly, the theoretical background and equations of motion for a SDOF system consisting of a mass supported on a flat surface with friction are introduced. Special emphasis is made on the fundamentals of stick-slip motion as well as energy considerations. Secondly, experimental studies carried out on a shaking table with harmonic and seismic records are described. These tests consisted of lead blocks contained on a U-shaped channel type aluminum section with its open end facing upwards. This configuration allowed blocks to slide solely in the direction of the base motion. Five different types of contact interfaces were considered to determine potential friction coefficients for the damper's design. Additionally, computational models based on rigid-body dynamics are presented. Numerical results were satisfactory particularly when comparing model's dissipated energy with empirical results. An analysis was carried out by calculating dissipated energy for the experimentally-calibrated models with varying friction ratios. For this purpose, eight near-fault seismic records were selected. Intervals with friction coefficients that maximize energy dissipation are proposed for each record. Finally, relationships between the computed friction ratios and register's peak ground acceleration (PGA) and root mean square acceleration (RMS) are discussed.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Techno-Press
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ENERGY DISSIPATION
dc.subject
FRICTION
dc.subject
NEAR-FAULT EARTHQUAKES
dc.subject
STICK-SLIP MOTION
dc.subject.classification
Ingeniería Estructural
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Ingeniería Civil
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Energy dissipation by friction for sliding blocks subjected to near-fault seismic base motion
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-11-23T13:38:53Z
dc.journal.volume
27
dc.journal.number
5
dc.journal.pagination
819-836
dc.journal.pais
Corea del Sur
dc.journal.ciudad
Seúl
dc.description.fil
Fil: Barlek Mendoza, Pablo Mariano. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Estructuras "Ing. Arturo M. Guzmán"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
dc.description.fil
Fil: Ambrosini, Ricardo Daniel. Universidad Nacional de Cuyo. Facultad de Ingeniería. Instituto de Mecánica Estructural y Riesgo Sísmico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
dc.description.fil
Fil: Luccioni, Bibiana Maria. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Estructuras "Ing. Arturo M. Guzmán"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
dc.journal.title
Smart Structures And Systems
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.techno-press.org/content/?page=article&journal=sss&volume=27&num=5&ordernum=8
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.12989/sss.2021.27.5.819
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