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Nonlinear FE-analysis and testing of light-frame timber shear walls subjected to cyclic loading

https://research.thinkwood.com/en/permalink/catalogue3253
Year of Publication
2023
Topic
Mechanical Properties
Author
Kuai, Le
Ormarsson, Sigurdur
Vessby, Johan
Organization
Linnaeus University
Karlstad University
Publisher
Elsevier
Year of Publication
2023
Format
Journal Article
Topic
Mechanical Properties
Keywords
Finite Element Modeling
Light-frame Shear Walls
Numerical Model
Elasto-plastic Connectors
Research Status
Complete
Series
Construction and Building Materials
Summary
Light-frame timber shear walls have been used as load-bearing elements in buildings for several decades. To predict the performance of such structural elements under loading, numerous analytical and numerical models have been developed. However, little focus has been on the prediction of the plastic damage behaviour and unloading of the walls. In this paper, a parametric Finite Element (FE) model is further developed by introducing elasto-plastic connectors to simulate the mechanical behaviour of the sheathing-to-framing connections. To verify the accuracy of the elasto-plastic model, full-size walls were tested and compared with results from simulations. The numerical results, from a few loading cycles, indicate that the model achieves reasonable accuracy in predicting both the nonlinear elastic and plastic deformations. Both experimental and simulation results demonstrate the importance of opening locations relating to the external racking force. The results also indicate that for a double-layer wall, its racking strength can be achieved by summation of the separate contribution from each layer. Furthermore, the internal layer was observed to contribute significantly less than the external layer since its nail pattern was based on the sheathing pattern of the external layer.
Online Access
Free
Resource Link
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2302 records – page 1 of 2302.