(1) Scissor braces should be installed continuously from the bottom corner of the scaffolding to the top, and the surface of the scissor braces should be painted with red and white warning paint.
(2) The number of vertical poles spanned by each scissor brace should be determined according to the provisions of the following table. The width of each scissor brace should not be less than 4 spans and should not be less than 6 meters. The inclination angle between the diagonal pole and the ground should be 45°~60°.
(3) For ground-type external frames below 24 meters, vertical continuous scissor braces should be installed on the outer ends of the frame, corners, and the vertical surface with an interval of no more than 15 meters in the middle. For ground-type external frames above 24 meters and all cantilever frames, continuous scissor braces should be installed on the entire vertical surface of the outer side of the frame.
(4) The extension of the scissor brace rods should be overlapped. The overlap length should not be less than 1m and should be firm with no less than 3 fasteners.
(5) The diagonal rod of the scissor brace shall be fixed to the protruding end of the horizontal bar or the vertical bar that intersects with it by a rotating fastener. The distance from the center line of the rotating fastener to the main node should not be greater than 150mm.
(6) Horizontal diagonal braces must be set at both ends of the I-shaped and open double-row frames. A horizontal diagonal brace shall be set at the corners of the frame and every six spans in the middle of the frame over 24m.
(7) The horizontal diagonal braces shall be arranged in a zigzag shape from bottom to top in the same interval. The diagonal braces shall cross and connect to the inner and outer large cross bars to the top.
Post time: Dec-31-2024