Abstract
The Japanese Industrial Safety and Health Law was revised in March 2009, introducing new measures concerning accidental falls in the construction industry. This revision regulates the use of guard rails, handrails, and other scaffolds components. Wind loads need to be considered when the scaffolds are set up. The wind loads and structural specifications of scaffolds are regulated by current design regulations. However, these provisions do not necessarily comply with the new legal requirements because they were made to apply to old-style scaffolds. A baseboard was used in construction site. In this study, the wind force on the scaffolds, with the height of the baseboard as a parameter, was examined by wind tunnel test. The scaffolds wind force coefficient of scaffolds with a 15cm baseboard is 1.5 times that of the scaffolds without a baseboard. The wind force coefficient should consider the height of the baseboard in the design of the scaffolds. From the results, It should be executed to the new regulations.
