(1) Requirements for the internal support step of a scaffold: When the erection height is less than 8 meters, the step should not be more than 1.5 meters; when the erection height is higher than 8 meters, the step should not be more than 1.5 meters.
(2) Requirements for the height of the independent high formwork of a scaffold: For a long independent high formwork frame, the ratio of the total height of the frame to the width of the frame H/B should not be greater than 3.
(3) Requirements for the adjustable support of a scaffold: The exposed length of the screw rod of the adjustable support must not exceed 400 mm, and the length of the support inserted into the vertical pole or double-slot steel support beam must not be less than 150 mm.
(4) Requirements for the adjustable base of a scaffold: The exposed length of the adjustable base screw rod should not exceed 300 mm, and the height of the lowest horizontal rod of the sweeping rod from the ground should not be greater than 550 mm.
(5) Requirements for the continuous erection height of a double-row external scaffold: It should not be greater than 24 meters.
(6) Requirements for the step and span of double-row external scaffolding: the step should be 2m, the vertical distance of the uprights should be 1.5m or 1.8m, and should not be greater than 2.1m, and the horizontal distance of the uprights should be 0.9m or 1.2m.
(7) Requirements for the arrangement of diagonal braces for the scaffolding with a hook: within the 24m permissible erection height required by the specification, a vertical diagonal brace should be installed for every 5 spans along the longitudinal direction of the outer side of the frame or a steel pipe scissor brace with fasteners should be installed every 5 spans.
(8) For each horizontal bar layer of the double-row scaffolding, when there is no hook steel scaffolding board to strengthen the horizontal layer rigidity: a horizontal diagonal bar should be installed every 5 spans.
(9) Requirements for the wall connection of the scaffolding with a hook: the distance from the connection point between the wall connection and the frame to the hook node should not be greater than 300mm.
Post time: Jun-27-2025