Improved Fastener-Based Modelling Method for Reinforced Cold-Formed Steel Shear Walls

The fastener-based computational model is improved and extended to predict the shear performance of reinforced cold-formed steel (RCFS) shear walls. The failure mechanism of sheathing-to-stud connections with double-layer wallboards is first analysed, and a method for determining those connections’...

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Bibliographic Details
Published in:Advances in civil engineering 2019, Vol.2019 (2019), p.1-14
Main Authors: Gao, Shangxin, Wang, Wei, Li, Youcheng, Wang, Xingxing
Format: Article
Language:English
Subjects:
Behavior
Civil engineering
Cold
Cold working
Cold-formed steel
Computer simulation
Concrete
Elastic beams
Equivalence
Failure analysis
Failure mechanisms
Numerical models
Performance prediction
Researchers
Seismic engineering
Shear properties
Shear strength
Shear walls
Sheathing
Simulation
Software
Steel structures
Test procedures
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Summary:The fastener-based computational model is improved and extended to predict the shear performance of reinforced cold-formed steel (RCFS) shear walls. The failure mechanism of sheathing-to-stud connections with double-layer wallboards is first analysed, and a method for determining those connections’ shear properties is proposed. Numerical models of RCFS shear walls are then established and analysed. Based on simulated results that have been fully validated by previous test results, an equivalent method for perforated RCFS shear walls is proposed. Finally, the application of the improved fastener-based modelling method to mid-rise RCFS shear walls is verified. The following results were obtained. (1) The simulated load-displacement curves can fully reflect shear wall hysteretic characteristics; moreover, the relative errors between the simulated and test results are within 14.2%. (2) The equivalent method that simplifies the wall segment over an opening as a linear elastic beam is applicable in the case of 1.5 
ISSN:1687-8086
1687-8094
DOI:10.1155/2019/3260946