7. The bottom step of the scaffolding should not exceed 2m. The poles must be reliably connected to the building with wall-to-wall components. In addition to the top step, the other joints must be connected by butt fasteners. If the docking method is adopted, the butt joints shall be staggered; when the lap joint is adopted, the lap length shall not be less than 1 m, and shall be fixed by not less than 2 rotating fasteners, and the edge of the end fastener cover to the rod The end distance should not be less than l00mm.
8. The arrangement of the wall parts should be close to the main node setting. The distance from the main node should not be more than 300mm. It should be set from the first vertical horizontal rod of the bottom layer; the two ends of the open type scaffold must be connected with the wall parts. The vertical spacing of such scaffolding and wall parts shall not be greater than the height of the building and shall not be greater than 4 m (2 steps). For double-row scaffolding with a height of 24m or more, rigid connecting members must be used to reliably connect with the building.
9, double-row scaffolding should be provided with scissors support and lateral bracing, single-row scaffolding should be provided with scissors. The number of scissors spanning the poles should not exceed 7 when the angle between the scissors and the ground is 45°; when the angle between the scissors and the ground is 50°, it should not exceed 6; when the scissors The slanting bar should not exceed 5 when the inclination angle to the ground is 60°. The width of each scissors should not be less than 4 spans, and should not be less than 6m. The inclination angle of the diagonal poles to the ground should be between 45° and 60°; the single and double row scaffolds with heights below 24m must be on the outer facade. A pair of scissors supports are arranged at both ends, and should be continuously set from the bottom to the top; the clearance between the scissors supports in the middle should not exceed 15m; the double-row scaffold with a height above 24m should be the entire length and height of the outer façade The scissor support shall be arranged continuously; the lateral bracing shall be arranged continuously between the bottom and the top layer in the same section, and the fixing of the diagonal bracing shall comply with the relevant regulations; both ends of the double-row scaffolding of the one-line type and the open type shall be set Lateral bracing, the middle should be set every 6 spans.