1. Safety helmets must be worn when working, and seat belts must be fastened when working at heights. Working under the influence of alcohol is strictly prohibited.
2. Scaffolding must be erected in strict accordance with the "Safety Technical Operating Procedures for Construction and Installation Workers" and the requirements of the construction plan. The scaffolding must be strong and reliable, otherwise construction will not be allowed.
3. When erecting or dismantling scaffolding, you must pay attention to the electricity used at the construction site, such as distribution boxes, cables, external lines, etc. It is strictly prohibited to throw them around to prevent electric shock or injury to others.
4. Scaffolding boards must be fully paved, tied securely, without probe boards, and must be firmly fixed on the support of the scaffolding. No part of the scaffolding shall be connected to the formwork. Two people are required to turn over the scaffolding boards. Proceed in order from the inside out. When laying the first scaffolding board or turning over to the outermost scaffolding board, the safety belt must be fastened.
5. On the outside of the scaffolding, ramps and platforms, 1-meter-high protective railings and 18-centimeter-high toeboards or protective nets should be tied to the outside of the scaffolding. The safety facilities laid should be inspected frequently to ensure that the operators and safe passage of small machinery.
6. Materials and tools on the scaffolding should be stacked neatly, and snow and debris should be removed in time. For sloped scaffolding boards, anti-slip wooden strips should be added.
7. Set up a cantilever (overhanging scaffolding) at the entrance of the opening. The angle between the diagonal rod and the bridge deck is generally not greater than 30 degrees, and should be supported on a solid part of the building. All stress-bearing points of the cantilever must be tied Double buckle and tie protective railings at the same time.
8. Scaffolding erected in water should be regularly checked for stress and erosion. If looseness, deformation or subsidence is found, it should be reinforced in time. Workers working on scaffolding should wear life-saving equipment.
9. The hanging blue should be installed strictly in accordance with the design drawings. The wire rope for hanging the hanging basket must be wrapped around the cantilever beam no less than three times, the clips on the step head must be no less than three, and each hanging basket must have no less than two safety ropes. The safety rope and the hanging basket must be firmly fixed after each lifting. . The wire rope must not rub with the building or other components, and should be separated by pads or pulleys when approaching. Debris scattered on it should be removed as much as possible. It is strictly forbidden to pull the forward rod and the reverse rod at the same time when operating a hoist hoist raised and lowered by a hand plate hoist. When lowering, the upper casing of the forward rod must be removed first, and then the forward rod is slowly lowered.
10. Use steel pipes to build derricks. The joints of two adjacent vertical poles should be staggered by no less than 50cm. The crossbars and scissor braces (cross braces) must be installed at the same time. The slide rails must be vertical. The spacing error between the two rails must be different. It shall not exceed 10mm.
11. After the scaffolding is installed, it must be accepted by the person in charge of the construction before it can be used.
13. Dismantle the scaffolding one step at a time, and do not work up and down at the same time. To dismantle the large crossbar and scissor brace of the scaffolding, the middle buckle should be removed first, then the buckles at both ends, and the operator in the middle of the crane should move down the pole.
14. The removed scaffolding poles, scaffolding boards, steel pipes, fasteners, wire ropes and other materials should be passed downwards or hung down with ropes. It is prohibited to throw them downwards.
15. When the height of the scaffold is above 7m or support poles cannot be installed, the scaffolding must be firmly connected to the building for every 4m in height and every 7m horizontally.
(1) The top pull points must meet the stability requirements of the shelf. The horizontal distance should be less than 6m for one top pull point, and the vertical distance should be no less than 4m or one for each floor. The tie points must be located between vertical poles and large horizontal bars. on the node.
(2) For high-rise scaffolding above 18m, there must be a design plan for unloading measures. There are generally three forms of unloading; one is the suspended type, which hangs the shelf at an angle of 60 degrees on the structure; The first is the flat lifting type, which lifts the frame horizontally from the structure; the third is the top supporting type, which transmits the load of the shelf to the structure and the ground through the support rods.
(3) Unloading is divided into sections of 15-18m. The uneven distance should be determined according to the design plan. If the load to be unloaded on the building is large, the horizontal distance should be dense. If it is small, the horizontal distance can be appropriately relaxed.
16. The distance between the holding rails (thrown supports) should not exceed 7 vertical poles. When the height exceeds three steps, a horse beam should be tied every three steps and a counter-pressing railing should be added. The angle between the inclined pole and the ground should be 45 degrees.
17. Horse track (slope)
(1) The slope of the horse track depends on the use of the horse track. If the horse track is used to transport materials, the slope is 1:6 (height:length). If it is a pedestrian path, the slope is 1:3 (height:length).
(2) The width of the horse track is also divided into two types: material transportation and pedestrian. The width of the horse track is not less than 1.5m, and the width of the pedestrian horse track is not less than 1m.
(3) The horse track is paved with scaffolding boards After that, the anti-slip strips must be thickened to 3cm and the spacing should be no more than 30cm.
(4) A resting platform should be set up at the turning point of the zigzag bridleway, with a width of not less than 1.5cm. A scissor brace or a figure-eight fence should be tied to the platform.
(5) Horse paths and platforms must be supported by railings and toeboards.
18. The width of the scaffolding inside the masonry building should not be less than 1.2m, and the height should be kept 20cm lower than the exterior wall. The spacing between the scaffolding supports should not be greater than 1.5m, and there should be wooden blocks at the bottom of the scaffolding. It is supported on a structure that can withstand the load. When erecting a double-layer frame, the upper and lower brackets must be aligned, and the distance between the brackets should be tied with diagonal braces.
19. For scaffolds with a height of 10 to 15 meters, a set of wind ropes (1 to 6 pieces) should be installed, and an additional set should be installed every 10 meters in height.
When erecting, temporary cables should be set up first. After the fixed cables are set securely, the temporary cables should be removed. The angle between the cables and the ground should be 45 to 60 degrees, and they should be firmly tied to the ground anchor alone. , and use the flower blue screw to adjust the tightness. The adjustment must be done diagonally and staggered. The cable wind rope is prohibited from being tied to trees, poles and other objects.
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