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Sensitivity study of the finite element model for wood-framed shear walls

Andreasson, Sverker LU ; Yasumura, M and Daudeville, L (2002) In Journal of Wood Science 48(3). p.171-178
Abstract
A sensitivity study was performed with a nonlinear elastic finite element model for monotonic analyses of wood-framed shear walls. The objective was to provide information about simplifying a model of wood-framed shear walls with no significant loss in accuracy. The simplifications concern features such as slips in joints between frame members, slips in hold-down connections, and bearing between adjacent sheathing panels. The results from analyses of a shear wall with an opening of window shape show that the effect of constraint by the bearing between sheathing panels and slips in frame joints on the overall stiffness of the wall is limited. Thus, there are great possibilities for reducing the calculation time by not taking these phenomena... (More)
A sensitivity study was performed with a nonlinear elastic finite element model for monotonic analyses of wood-framed shear walls. The objective was to provide information about simplifying a model of wood-framed shear walls with no significant loss in accuracy. The simplifications concern features such as slips in joints between frame members, slips in hold-down connections, and bearing between adjacent sheathing panels. The results from analyses of a shear wall with an opening of window shape show that the effect of constraint by the bearing between sheathing panels and slips in frame joints on the overall stiffness of the wall is limited. Thus, there are great possibilities for reducing the calculation time by not taking these phenomena into account, avoiding an excessive number of degrees of freedom and iterations. The influence of the simplifications on the distribution of vertical reaction forces along the wall is more significant. Furthermore, if each simplification is introduced separately, the effect on the overall stiffness is greater. The difference, however, is less than 10%. The failing pattern of the nail connections is also clearly influenced by the simplifications when they are introduced separately. The results from the analyses show that slips in frame joints can be sufficiently represented by those in connection with the opening. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
sensitivity study, opening, wood-framed shear walls, finite element model
in
Journal of Wood Science
volume
48
issue
3
pages
171 - 178
publisher
Springer
external identifiers
  • wos:000177171600002
  • scopus:0142039677
ISSN
1435-0211
DOI
10.1007/BF00771363
language
English
LU publication?
yes
id
b5273f67-0738-4032-8c85-0c5e2af67932 (old id 332257)
date added to LUP
2007-08-07 11:31:10
date last changed
2017-07-30 04:26:45
@article{b5273f67-0738-4032-8c85-0c5e2af67932,
  abstract     = {A sensitivity study was performed with a nonlinear elastic finite element model for monotonic analyses of wood-framed shear walls. The objective was to provide information about simplifying a model of wood-framed shear walls with no significant loss in accuracy. The simplifications concern features such as slips in joints between frame members, slips in hold-down connections, and bearing between adjacent sheathing panels. The results from analyses of a shear wall with an opening of window shape show that the effect of constraint by the bearing between sheathing panels and slips in frame joints on the overall stiffness of the wall is limited. Thus, there are great possibilities for reducing the calculation time by not taking these phenomena into account, avoiding an excessive number of degrees of freedom and iterations. The influence of the simplifications on the distribution of vertical reaction forces along the wall is more significant. Furthermore, if each simplification is introduced separately, the effect on the overall stiffness is greater. The difference, however, is less than 10%. The failing pattern of the nail connections is also clearly influenced by the simplifications when they are introduced separately. The results from the analyses show that slips in frame joints can be sufficiently represented by those in connection with the opening.},
  author       = {Andreasson, Sverker and Yasumura, M and Daudeville, L},
  issn         = {1435-0211},
  keyword      = {sensitivity study,opening,wood-framed shear walls,finite element model},
  language     = {eng},
  number       = {3},
  pages        = {171--178},
  publisher    = {Springer},
  series       = {Journal of Wood Science},
  title        = {Sensitivity study of the finite element model for wood-framed shear walls},
  url          = {http://dx.doi.org/10.1007/BF00771363},
  volume       = {48},
  year         = {2002},
}