Scaffolding classification:
1. Fastener type 2. Bowl buckle type 3. Cantilever type 4. Guide rail type 1. Floor fastener type steel pipe scaffolding
(1) Structure: 1. Vertical pole, 2. Longitudinal horizontal pole (large horizontal pole), 3. Horizontal horizontal pole (small horizontal pole), 4. Sweeping pole, 5. Scissor brace (enhance the rigidity and stability of the scaffolding .) 6. Transverse diagonal braces, 7. Wall fittings, 8. Main nodes, 9. Base, 10. Pads
(2) Horizontal distance table of poles for floor-standing scaffolding: size type structure Construction scaffolding decoration construction scaffolding double row scaffolding pole horizontal distance, 1.05----1.55m0.80----1.55m single row scaffolding pole horizontal distance, 1.45----1.80m1.15----1.40 mThe distance between the inner end of the horizontal horizontal pole and the wall is 100----150mm150----200mm The distance between the vertical pole and the wall of double row scaffolding is 350----500mm350----500mm Note: The height of single row scaffolding is generally not More than 24m, double racks shall not exceed 50m. If it exceeds 50m, the following measures will be taken: 1. Use double vertical poles (height not less than 5-6m) in the lower part of the scaffolding, and single vertical poles (height less than 35m) in the upper part. 2. Arrange the scaffolding in sections, halve the span of the lower poles of the scaffolding, and make the larger part of the span of the upper poles less than 35m tall. (3) Scaffolding pole span reference table: Scaffolding height and longitudinal spacing of scaffolding poles <30m30---40m40---50m1.8-----2.0m1.4-----1.8m1.2 -----1.6m
(4) Scaffolding foundation: 1. Smooth and compact. 2. Reliable drainage.
(5) Base and pads under the column: 1. Ordinary scaffolding: pads are 2.0---2.5m long, not less than 20mm wide, and 50---60mm thick. 2. High-rise building scaffolding: pave pond slag and concrete prefabricated blocks on the foundation, lay channel steel longitudinally on it, place the scaffolding pole base on the channel steel, and use road wood to support the column base.
(6) Steel pipe: 1. No. 3 welded steel pipe with an outer diameter of 48mm and a wall thickness of 3.5mm. The weight of each pipe is controlled within 25kg. The horizontal horizontal rod is 2.2m long, generally 1.8–2.2 m. The length of other steel pipes does not exceed 6.5m, generally 4–6.5m. However, there are also steel pipes with an outer diameter of 51mm and a wall thickness of 3mm in use, and the national specifications are being gradually phased out.
(7) Fasteners: 1. Right angle type---intersectingly connecting vertical poles and horizontal poles. 2. Rotary type---connect two rods that intersect at any angle. 3. Butt type---used for docking two rods.
(8). The allowable horizontal deviation of the neutral pole when erecting the scaffold (mm). The height of the scaffold to check the deviation during erection m. The height of the scaffold is 50m40m20m21020304050±72040608010072550751007501001. Suffering from hypertension, disease, epilepsy, fear of heights People who are sick are not allowed to operate on the shelves, and it is strictly prohibited to operate on the shelves after drinking. 2. When setting up scaffolding, you must wear safety belts, safety helmets, soft-soled shoes, and tie up trousers and cuffs.
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