Earthquake Damage Reduction in Timber Frame Houses Using Small-Size Fluid Damper

Timber frame structures are common traditional methods of housing construction, which use squared-off timber beams, columns, and walls as lateral load-bearing members. The seismic performance of timber frame houses can be secured by the load-bearing capacity of erected braces and walls; however, pas...

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Autores principales:	Yutaka Nakamura, Hinako Fujii
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	earthquake damage timber frame house fluid damper response analysis the 2016 Kumamoto earthquake inter-story drift Engineering (General). Civil engineering (General) TA1-2040 City planning HT165.5-169.9
Acceso en línea:	https://doaj.org/article/08dbc5e6028c46dc88d47636313d198e
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id	oai:doaj.org-article:08dbc5e6028c46dc88d47636313d198e
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spelling	oai:doaj.org-article:08dbc5e6028c46dc88d47636313d198e2021-11-30T22:33:14ZEarthquake Damage Reduction in Timber Frame Houses Using Small-Size Fluid Damper2297-336210.3389/fbuil.2021.767741https://doaj.org/article/08dbc5e6028c46dc88d47636313d198e2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fbuil.2021.767741/fullhttps://doaj.org/toc/2297-3362Timber frame structures are common traditional methods of housing construction, which use squared-off timber beams, columns, and walls as lateral load-bearing members. The seismic performance of timber frame houses can be secured by the load-bearing capacity of erected braces and walls; however, past major earthquakes have caused severe damage to earthquake-resistant timber frame houses. This study investigates the effect of small-size fluid dampers on the earthquake damage reduction in a timber frame house through earthquake response analyses. A detailed analytical model was generated based on an actual two-story timber frame house, which was designed for the highest seismic grade using the latest Japanese standards. Time-history response analyses were carried out for the analytical model subjected to the 2016 Kumamoto earthquake with and without small-size fluid dampers. The small-size fluid damper is equipped with a relief mechanism for the damping force, and its damping property can be expressed using the Maxwell model. Four or seven fluid dampers were installed in the first story of the model to investigate their effect on the earthquake damage reduction. The results of the earthquake response analyses show that the four and seven fluid dampers can reduce the maximum first-story drift angle by approximately one-third and half, respectively. The dampers suppress the residual deformation, control the elongation of the fundamental period during the response, and restrain the amplitude growth. A small-size fluid damper has an equivalent quake resistance to a conventional structural wall with a wall ratio of 3 plus.Yutaka NakamuraHinako FujiiFrontiers Media S.A.articleearthquake damagetimber frame housefluid damperresponse analysisthe 2016 Kumamoto earthquakeinter-story driftEngineering (General). Civil engineering (General)TA1-2040City planningHT165.5-169.9ENFrontiers in Built Environment, Vol 7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	earthquake damage timber frame house fluid damper response analysis the 2016 Kumamoto earthquake inter-story drift Engineering (General). Civil engineering (General) TA1-2040 City planning HT165.5-169.9
spellingShingle	earthquake damage timber frame house fluid damper response analysis the 2016 Kumamoto earthquake inter-story drift Engineering (General). Civil engineering (General) TA1-2040 City planning HT165.5-169.9 Yutaka Nakamura Hinako Fujii Earthquake Damage Reduction in Timber Frame Houses Using Small-Size Fluid Damper
description	Timber frame structures are common traditional methods of housing construction, which use squared-off timber beams, columns, and walls as lateral load-bearing members. The seismic performance of timber frame houses can be secured by the load-bearing capacity of erected braces and walls; however, past major earthquakes have caused severe damage to earthquake-resistant timber frame houses. This study investigates the effect of small-size fluid dampers on the earthquake damage reduction in a timber frame house through earthquake response analyses. A detailed analytical model was generated based on an actual two-story timber frame house, which was designed for the highest seismic grade using the latest Japanese standards. Time-history response analyses were carried out for the analytical model subjected to the 2016 Kumamoto earthquake with and without small-size fluid dampers. The small-size fluid damper is equipped with a relief mechanism for the damping force, and its damping property can be expressed using the Maxwell model. Four or seven fluid dampers were installed in the first story of the model to investigate their effect on the earthquake damage reduction. The results of the earthquake response analyses show that the four and seven fluid dampers can reduce the maximum first-story drift angle by approximately one-third and half, respectively. The dampers suppress the residual deformation, control the elongation of the fundamental period during the response, and restrain the amplitude growth. A small-size fluid damper has an equivalent quake resistance to a conventional structural wall with a wall ratio of 3 plus.
format	article
author	Yutaka Nakamura Hinako Fujii
author_facet	Yutaka Nakamura Hinako Fujii
author_sort	Yutaka Nakamura
title	Earthquake Damage Reduction in Timber Frame Houses Using Small-Size Fluid Damper
title_short	Earthquake Damage Reduction in Timber Frame Houses Using Small-Size Fluid Damper
title_full	Earthquake Damage Reduction in Timber Frame Houses Using Small-Size Fluid Damper
title_fullStr	Earthquake Damage Reduction in Timber Frame Houses Using Small-Size Fluid Damper
title_full_unstemmed	Earthquake Damage Reduction in Timber Frame Houses Using Small-Size Fluid Damper
title_sort	earthquake damage reduction in timber frame houses using small-size fluid damper
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/08dbc5e6028c46dc88d47636313d198e
work_keys_str_mv	AT yutakanakamura earthquakedamagereductionintimberframehousesusingsmallsizefluiddamper AT hinakofujii earthquakedamagereductionintimberframehousesusingsmallsizefluiddamper
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Earthquake Damage Reduction in Timber Frame Houses Using Small-Size Fluid Damper

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