What are the safety technical precautions for bamboo scaffolding?

What are the safety technical precautions for bamboo scaffolding? What are the rules? Please read the article edited by Zhong Da Consulting Company.

1. General provisions: 2. 1. Material selection: Bamboo that has grown for more than four years, is tender, yellow, moth-eaten, rotten and cracked (more than two knots) shall not be used. 4. Binding: water onion, bamboo, bamboo. Don't tie three at a time 13. Diameter of Phyllostachys pubescens: the effective diameter of the small head of vertical pole, main rail, scissors, throwing support and top support shall be ≥7cm. Cross arm (small bar) ≥9cm. 4. The height of the shelf is less than 24m, and the design scheme should be prepared and approved if it is greater than 24m. 5. The uniformly distributed load on the masonry scaffold should not exceed 270kg/m2, and the uniformly distributed load on the decorative scaffold should not exceed 200kg/m2. 3. Vertical bar: 1. Setting-out: The foundation within the scaffold erection scope shall be leveled and compacted. (1) according to the builder's disclosure and the characteristics of the building, determine the vertical and horizontal spacing of the vertical pole, stay at the scene, nail bamboo sticks for lofting. (2) According to the total height, characteristics and structural requirements of the building, determine the step distance of the shelf (should be ≤ 1.8) and the height of the first leather shelf. 3. When the buried depth is 30 ~ 50 cm, the anvil is placed below, and the soil is soft or it is difficult to dig a hole, a sweeping rod should be tied. 13. Transverse spacing: 1 ~ 1.2m, and the distance between the inner upright post and the wall is ≤20cm. 2. Longitudinal spacing: 1.3 ~ 1.5m (error soil 5cm). The spacing between the vertical poles of the shelf over 15m shall not be greater than1.5m. The external vertical poles shall be higher than the roof1.2 ~1.5m. 5. Verticality: the corner ≤ 10cm, and the middle of the shelf ≤15. [6] Lap length of vertical pole: not less than 1.8m, and the joint shall pass through the leather frame. Adjacent uprights in the same frame should be staggered and should not overlap with the top bracing. ⒎ The poling shall be laid on the right side of the top bracing, alternately, and the verticality of the middle top bracing shall be maintained. Four, small bar: the inner end extends out of the inner upright post 15 ~ 35 cm, 5 ~ 10 cm away from the wall, and the outer end extends out of the outer upright post for more than 20cm. V. Top bracing: The top bracing should be vertical, with the big head facing upwards, and tied with three bamboo strips, and the diameter of the small head should be greater than two thirds of the diameter of the small column. The upper and lower top bracing should be kept in the same straight line. Six, the main rail: set up four (frame width 1.2m), tied to the inside of the vertical rod, joint placed in the vertical rod (small bar), and firmly bound, upper and lower frame joints should be staggered, the lap length should not be less than 1.5m, and the number of binding lanes should not be less than four. 7. Scissors: The corners, ends and middle of scaffolding are arranged continuously from bottom to top at intervals of 15m. Scissors should be slightly tied at the head, with the big head pressing the small head. The lap length is greater than 1.5cm, not less than 5 bundles, and the lap length is 45 ~ 30 with the ground. The bottom should be buried more than 30cm. When it is not possible to bury, lead wires not less than 16# shall be bound at the intersection of vertical poles. According to needs, longitudinal continuous multi-span bracing can also be set, but its maximum width shall not exceed 6 spans. Eight, even the wall points and throw support settings: three steps under the shelf every 6 ~ 7 vertical pole set a throw support, buried in the ground 30cm. For more than three frames, a wall point should be set every two steps and four spans. The commonly used method is to bury 10 ~ 12 # galvanized lead wire in the wall to pull the vertical pole in the frame, and at the same time, use short battens to resist the wall surface (small poles can also be used to top the wall, which can only be sawed off when painting). Even the wall point should be as close as possible to the node of the vertical pole of the shelf to strengthen the stability of the shelf. 9. Railings: protective railings and vertical nets with a height of 1.0m shall be set on the inner side of the external poles with more than two steps, and the external poles shall be tied with protective railings higher than the roof1.2 ~1.5m.. X. Scaffolding: The construction layer shall be covered with scaffolding, and the corners and main rails shall be firmly bound with 16# lead wire. Each construction operation layer shall be paved with scaffolding boards with more than three steps, and the corners and main rails shall be firmly bound with 16# lead wire. The high-rise frame should be covered with a leather frame board every four leather frames for safety protection. Scaffolding must be laid firmly. Scaffolding lap length is not less than 20cm. Gaps more than 20 cm away from the wall should be protected. One protection method is to use planks, and the other is to use small safety nets for protection. 1 1. Ramp: More than three ramps and platforms should be built, with a slope ≤ 1: 3. Pedestrian ramps are usually the same width as the frame. 4. The width of the conveying chute should not be less than 1.5m, and the slope should be 1: 6. The width of the rotary platform shall not be less than 1.5m and the area shall not be less than 6m2. [13] protective railings and vertical nets with a height of 1m should be set on both sides of the chute and the outside of the overturning platform for protection. 4. Erection method: same as scaffolding, but for the stability of chute, scissors should be set at the periphery and end of both sides of chute. For the ramp attached to the outside of the scaffold (that is, when the external pole of the scaffold is used as the internal pole of the ramp), the setting of the scaffold wall connecting pole should be strengthened. For independent ramps, the wall connecting rods should be encrypted. 5. A bamboo frame without a roof should be provided with a ramp on the roof. XI。 Binding: All steel bar intersections shall be fastened with bamboo sticks. Twelve, street protection: along the street, densely populated areas, the scaffolding outside the application of protective bamboo basketry fully enclosed, or with a vertical net fully enclosed. Conditional can use bamboo basketry on the outside of scaffolding to strengthen the protection of streets. 13. acceptance: after erection or before use, you must go through the acceptance and handover procedures before use. The above are collected and sorted by Zhong Da Consulting Company.

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