Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Testing and nonlinear modelling of industrialized light-frame wooden diaphragms including optimized nailing and nonstructural sheathing
 
research article

Testing and nonlinear modelling of industrialized light-frame wooden diaphragms including optimized nailing and nonstructural sheathing

Veliz, Fernando
•
Estrella, Xavier  
•
Lagos, Jorge
Show more
October 8, 2023
Engineering Structures

This article presents the outcomes of a large project towards the investigation of the lateral performance of full-scale industrialized light-frame wooden diaphragms. 10 full-scale diaphragms of 3.6 m by 2.4 m were tested under in-plane lateral loading (monotonic and cyclic), considering different sheathing, nailing, and framing. Besides, the behavior of bare slabs (without any sheathing), gypsum finishes and the potential benefits of using optimized nailing patterns instead of regularly spaced nailing was also studied. Experimental tests were non-linearly modeled using the modified Steward hysteresis model (MSTEW) and MCASHEW software. Experimental strength and stiffness results proved to be consistent with those proposed by other international campaigns, and in particular, the design principles of SDPWS fitted well with the obtained results. However, chord tensions were 30 % greater than the ones obtained by principles of engineering mechanics, which might be explained by eccentric tensile load transfer. As expected, the behavior of both sawn lumber and I-joist framed diaphragms was mainly controlled by nailing. In fact, optimized nailing patterns allowed to equal the peak capacity, increase by 20 % stiffness and 75 % ductility with 8 % less nails. Screwed gypsum finishes increased the peak capacity and stiffness by 15 %, and 20 %, respectively. The modelling approach - mainly used only in shear walls in previous investigations - proved its capability of finely reproducing the behavior of all diaphragm configurations. The numerical results were also in good agreement with the prescriptions of the SDPWS standard.

  • Details
  • Metrics
Type
research article
DOI
10.1016/j.engstruct.2023.117017
Web of Science ID

WOS:001098142500001

Author(s)
Veliz, Fernando
Estrella, Xavier  
Lagos, Jorge
Guindos, Pablo
Date Issued

2023-10-08

Publisher

Elsevier Sci Ltd

Published in
Engineering Structures
Volume

297

Article Number

117017

Subjects

Technology

•

Wooden Diaphragm

•

Timber Slab

•

Wood

•

Lateral Testing

•

Numerical Modeling

•

Gypsum Board

•

Bare Frame

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SXL  
FunderGrant Number

National Excellence Center for the timber industry CENAMAD (ANID BASAL)

20I20312

FONDEF

20I20312

Available on Infoscience
February 19, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/204176
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés