Strength of temporary wooden guardrails installed on open joists and prefabricated walls
Type de document
Études primaires
Année de publication
2020
Langue
Anglais
Titre de la revue
Practice Periodical on Structural Design and Construction
Résumé
Guardrails are an efficient way to protect construction workers against falls from height. For residential construction, job-built wooden guardrails are quite common. This article investigates the strength of temporary wooden guardrails attached to open joists or prefabricated walls. More than 350 laboratory strength tests were performed on wooden guardrail systems installed on open joists and prefabricated walls. Besides the type of fastening hardware used, the influence of the position and number of nails and screws were also taken into consideration, as well as the number of spans of the guardrail system and the location of the loading point on the top rail. Results show that larger open joists generally offer a higher strength and that wood screws and straight nails reinforced with a corner bracket are the best fixture type for the posts. The critical configuration is when the load is applied directly on the vertical post.
Mots-clés
Dispositif d'amarrage, Anchoring device, Travail en hauteur, Work at height, Garde-corps, Railing, Protection contre les chutes de hauteur, Protection against falls from heights, Travaux de construction, Construction work, Résistance des matériaux, Strength, Détermination expérimentale, Experimental determination, Méthode de travail et sécurité, Safe working method
Numéro de projet IRSST
2016-0018
Citation recommandée
Galy, B. et Lan, A. (2020). Strength of temporary wooden guardrails installed on open joists and prefabricated walls. Practice Periodical on Structural Design and Construction, 25(2), article 04020006. https://doi.org/10.1061/(ASCE)SC.1943-5576.0000473