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Seismic design and nonlinear response comparison of a hybrid timber building configured with BRB- and SMA-braced LVL frames
Indexado
WoS WOS:001077572200001
Scopus SCOPUS_ID:85173939326
DOI 10.1007/S10518-023-01781-0
Año 2024
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



To achieve adequate performance during earthquakes, mass timber buildings are often combined with structural systems including other materials, resulting in seismic-resistant hybrid timber (SRHT) buildings. The state-of-the-art on the subject indicates that some of these hybrid systems have only aimed at increased stiffness and energy dissipation capability compared to timber-only structures, whilst others have also targeted a higher performance with minimal post-earthquake downtime for re-occupation. To compare both cases, this work presents the seismic design and nonlinear response evaluation of a SRHT building, 12-storeys tall, whose main seismic-resistant system included Laminated Veneer Lumber (LVL) frames braced with either Buckling Restrained Braces (BRB) or Shape Memory Alloy (SMA) devices-equipped steel braces. The design process showed that despite dividing the site response spectrum by a not so large reduction factor due to the existence of timber, practical and reasonable sizes of the structural members were able to satisfy the demand requirements. The results of the nonlinear dynamic analysis (NLDA) of the structures showed that both of them would respond within the accepted limits prescribed by international codes. The inclusion of the SMA devices upgraded the response of the hybrid building in terms of residual displacements and strains, but at the expense of having larger floor accelerations due to a reduced energy dissipation capability compared to the BRBs. It was concluded that both of the investigated systems are preliminary suitable for construction, and there is not a strict need for utilizing increased reduction factors. However, further research involving proper experimental testing is needed.

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Disciplinas de Investigación



WOS
Geosciences, Multidisciplinary
Engineering, Geological
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Rubio, Ricardo - TEAM Engineering and Research Limitada - Chile
TEAM Engn & Res Limitada - Chile
2 Quintana Gallo, Patricio Hombre Czech Technical University in Prague - República Checa
Czech Tech Univ - República Checa
3 Carradine, David M. Hombre BRANZ - Nueva Zelanda
BRANZ Ltd - Nueva Zelanda

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Financiamiento



Fuente
České Vysoké Učení Technické v Praze
The help of Mr. Brand Saxey (CoreBrace) with the design of the BRBs is greatly appreciated. Part of this work was presented at the World Conference on Timber Engineering 2021. The Corresponding Author acknowledges the support of the Department of Steel and
Department of Steel and Timber Structures of the Czech Technical University in Prague

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Agradecimientos



Agradecimiento
The help of Mr. Brand Saxey (CoreBrace) with the design of the BRBs is greatly appreciated. Part of this work was presented at the World Conference on Timber Engineering 2021. The Corresponding Author acknowledges the support of the Department of Steel and Timber Structures of the Czech Technical University in Prague for writing this article as part of the FB – CTU Global Postdoc Fellowship Program.
The help of Mr. Brand Saxey (CoreBrace) with the design of the BRBs is greatly appreciated. Part of this work was presented at the World Conference on Timber Engineering 2021. The Corresponding Author acknowledges the support of the Department of Steel and Timber Structures of the Czech Technical University in Prague for writing this article as part of the FB - CTU Global Postdoc Fellowship Program.

Muestra la fuente de financiamiento declarada en la publicación.