Seismic design and nonlinear response comparison of a hybrid timber building configured with BRB- and SMA-braced LVL frames

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F24%3A00372630" target="_blank" >RIV/68407700:21110/24:00372630 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/s10518-023-01781-0" target="_blank" >https://doi.org/10.1007/s10518-023-01781-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10518-023-01781-0" target="_blank" >10.1007/s10518-023-01781-0</a>

Result language

angličtina

Original language name

Seismic design and nonlinear response comparison of a hybrid timber building configured with BRB- and SMA-braced LVL frames

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Bulletin of Earthquake Engineering

ISSN

1570-761X

e-ISSN

1573-1456

Volume of the periodical

22

Issue of the periodical within the volume

2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

26

Pages from-to

461-486

UT code for WoS article

001077572200001

EID of the result in the Scopus database

2-s2.0-85173939326