S-2.1, r. 4 - Safety Code for the construction industry

Section 3.9.5 Disposition versions

2012-09-01

3.9.5. Uprights:

(1)  Scaffolding uprights shall rest on the ground or on foundations capable of supporting the maximum load without excessive settlement or deformation.

(1.1)  When scaffolding uprights rest on uneven ground, a safe and efficient means, such as screw jacks, must be used to ensure the plumbness of the scaffolding.

The use of construction waste material to fill the unevenness in the ground is prohibited.

(2)  The inner row of uprights shall be erected as close as possible to the building or structure.

(3)  The wooden uprights shall:

(a)  be fastened to the ground or foundation in such a way as to avoid any displacement of the base;

(b)  be vertical; and

(c)  not be cracked at the foot.

(4)  Should the uprights be spliced, they shall be fitted together in such a way that the spliced portion be at least as resistant as the portion which is directly beneath it.

(5)  When 2 stationary scaffoldings, resting on the ground, meet at the angle of a building or structure, an upright shall be placed at the intersection of the extended exterior longitudinal girders.

(6)  The parts making up the uprights shall be linked up in such a way that no torque or stress capable of causing buckling can come about.

(7)  The distance between 2 juncture points of a structure likely to buckle shall not be longer than:

(a)  30 times the smallest dimension of the wooden member involved; or

(b)  70 times the diameter of the tubular member involved.

R.R.Q., 1981, c. S-2.1, r. 6, s. 3.9.5; O.C. 119-2008, s. 5.