A simplified analytical procedure for seismic analysis of timber light-frame shear walls | [NED University Journal of Research • 2020]

Author(s):

1. Giorgia Di Gangi: Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Italy,

2. Giorgio Monti: Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Italy,

3. Giuseppe Quaranta: Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Italy,

4. Marco Vailati: Department of Civil, Construction-Architectural and Environmental Engineering, University of L. Aquila, Italy,

5. Cristoforo Demartino: Zhejiang University-University of Illinois at Urbana Champaign Institute, Haining, Zhejiang, China,

Abstract:

The seismic performance of timber light-frame shear walls is investigated in this paper with a focus on energy dissipation and ductility ensured by sheathing-to-framing connections. An original parametric finite element model has been developed in order to perform sensitivity analyses. The model considers the design variables affecting the racking load-carrying capacity of the wall. These variables include aspect ratio (height-to-width ratio), fastener spacing, number of vertical studs and framing elements crosssection size. A failure criterion has been defined based on the observation of both the global behaviour of the wall and local behaviour of fasteners in order to identify the ultimate displacement of the wall. The equivalent viscous damping has been numerically assessed by estimating the damping factor which is in use in the capacity spectrum method. Finally, an in-depth analysis of the results obtained from the sensitivity analyses led to the development of a simplified analytical procedure which is able to predict the capacity curve of a timber light-frame shear wall.

Page(s): 173-180

DOI: DOI not available

Published: Journal: NED University Journal of Research, Volume: 3, Issue: S-19, Year: 2020

Keywords:

seismic analysis , timber lightframe shear walls

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