Predictive Models for the Stiffness of Vertical Screws as Shear Connection in Timber-Concrete Composite Floors

Publisher:
ASCE
Publication Type:
Conference Proceeding
Citation:
Composite Construction in Steel and Concrete VII - Proceedings of the 2013 International Conference on Composite Construction in Steel and Concrete, 2016, pp. 661 - 675
Issue Date:
2016
Full metadata record
Files in This Item:
Filename Description Size
9780784479735%2E050.pdfPublished version972.96 kB
Adobe PDF
© ASCE. The stiffness, strength, and arrangement of the shear connection play a crucial role in the design of timber-concrete composite (TCC). This paper reviews the available analytical models for prediction of the stiffness of TCC shear connections. The methodology of different analytical models for stiffness of the mechanical fastener TCC connection is discussed and the accuracy of these models is examined based on push out test results for shear connectors. The simplified stiffness models underestimated the experimental data of normal wood screw with an error ranging approximately 10-40%, whereas the models based on Winkler's theory were inaccurate and calculated a much lower stiffness compared to that of experimental test with an error of approximately 60%. The reasons attributed to inaccuracy of the stiffness models are described. This paper recommends further investigation on the prediction of foundation moduli of timber and concrete as the main input parameters of the models based on the Winkler's theory.
Please use this identifier to cite or link to this item: