MODELLING METHODOLOGY FOR SHEAR CONNECTORS OF COLD-FORMED STEEL-ORIENTED STRAND BOARD COMPOSITE CONSTRUCTION AT AMBIENT AND ELEVATED TEMPERATURES

Zhuoran Feng, Yong Wang, Lee Cunningham

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a numerical study to determine methods of simulating the push-out behaviour of shear connectors in cold-formed steel (CFS) and Oriented Strand Board (OSB) composite beams at ambient and elevated temperatures. This paper assesses sensitivities of simulation results to variations of the missing material information and to different assumptions of modelling parameters, to determine suitable methods of acquiring the missing information. The results of this research indicate that the modified friction coefficient with a smooth rod model is most appropriate, and the coefficient values of 0.3 and 0.5 for timber-to-connector and steel-to-connector can be used, respectively. The mechanical properties of timber in the two non-longitudinal directions have little effect (5%) on the shear resistance. Hence, the timber can be considered to be homogeneous in these two directions, and it is only necessary to obtain the basic data in the longitudinal direction.
Original languageEnglish
Title of host publicationProceedings of the The 8 th International Conference on the Applications of Structural Fire Engineering ASFE’ 24
Pages47-57
Number of pages11
Publication statusE-pub ahead of print - 25 Feb 2024

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