Effects of Number of bays and Bracing Member on the Ultimate Behavior of System Scaffolds 


Vol. 35,  No. 3, pp. 6-15, Jun.  2020
10.14346/JKOSOS.2020.35.3.6


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  Abstract

This study examined the structural behaviors and ultimate loads of assembled system scaffolds by load tests. Considering the number of bay and bracing installation, four specimens were tested. The bays were divided into 1 bay and 2 bays, with and without the bracing member installed. Failure modes and horizontal displacements show that the whole column buckled without showing no point of inflection in the column, regardless of whether or not braces were installed. Thus, the current design method of selecting the vertical spacing between the horizontal members of the system scaffold as the effective buckling length underestimates the effective buckling length. In case of 1 bay specimens, the ultimate loads between specimens with and with bracing members are similar. However, in case of 2 bay specimens, the specimen with bracing members shows the increased ultimate load of 36% compared with that without bracing members. In addition, as the number of bays in the system scaffold increases, the ultimate load of the unit vertical column increases in case of the specimen with bracing installation. However, in the specimen without bracing members, the ultimate load of the unit column reduces with the increment of the number of bays due to the torsional buckling. Therefore, it is essential to install bracing members to increase the whole strength of system scaffolds and the ultimate load of the unit column

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  Cite this article

[IEEE Style]

이선우, 장남권, 원정훈, 정성춘, "Effects of Number of bays and Bracing Member on the Ultimate Behavior of System Scaffolds," Journal of the Korean Society of Safety, vol. 35, no. 3, pp. 6-15, 2020. DOI: 10.14346/JKOSOS.2020.35.3.6.

[ACM Style]

이선우, 장남권, 원정훈, and 정성춘. 2020. Effects of Number of bays and Bracing Member on the Ultimate Behavior of System Scaffolds. Journal of the Korean Society of Safety, 35, 3, (2020), 6-15. DOI: 10.14346/JKOSOS.2020.35.3.6.

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