The influence of flexible sound insulation layers on the seismic performance of cross laminated timber walls

Autor: Boris Azinović, Meta Kržan, Tomaž Pazlar
Rok vydání: 2021
Předmět:
Materials science
Bedding
CLT wall system
Stiffness
elastomerna zvočna izolacija
Soundproofing
stiffness
stenski elementi iz krizno lepljenega lesa
Architecture
CLT wall System
Cross laminated timber
medicine
Bearing capacity
togost
strižna nosilnost
Safety
Risk
Reliability and Quality
Ductility
Lateral load-bearing capacity
Civil and Structural Engineering
open access
business.industry
insulated angle bracket
strižni testi
Elastomer sound insulation
Racking tests
elastomer sound insulation
odprti dostop
Building and Construction
Structural engineering
izolirani strižni kotnik
(Insulated) angle bracket
Racking
racking tests
udc:624
izolirani strižni kotnik
stenski elementi iz krizno lepljenega lesa
elastomerna zvočna izolacija
strižni testi
strižna nosilnost
togost
odprti dostop
Mechanics of Materials
lateral load-bearing capacity
medicine.symptom
business
Displacement (fluid)
CLT wall system
insulated angle bracket
elastomer sound insulation
racking tests
lateral load-bearing capacity
stiffness
open access
Zdroj: Journal of building engineering, vol. 43, pp. 1-14, 2021.
Journal of building engineering, str. 1-14 : Ilustr., Vol. 43, Nov. 2021
COBISS-ID: 525380633
ISSN: 2352-7102
Popis: This paper presents the results of an experimental campaign investigating the seismic behaviour of full-size cross laminated timber (CLT) wall systems with sound-insulated shear-tension angle brackets. The main aim of the study was to investigate the influence of more and less flexible soundproofing bedding under the CLT wall. The paper shows a comparison of lateral load-bearing capacity, displacement capacity, ductility and stiffness obtained from racking tests on uninsulated specimens and specimens with various types of bedding insulation and levels of vertical load. Moreover, an analytical procedure to estimate the lateral load-displacement response of CLT walls with bedding insulation is proposed. This model is verified by direct comparison to the experimentally determined lateral load-displacement backbone curves. The results show that the elastomeric bedding does not have a significant effect on the bearing capacity of the wall system tested, but it reduces the stiffness and increases the displacement capacity. Due to the large decrease in stiffness, the insulation causes an overall reduction in ductility. The analytical estimation proposed was able to capture the reduction in lateral stiffness and adequately predict the load-bearing capacity.
Databáze: OpenAIRE
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