How Can I Avoid Scaffolding Accidents?

The collapse of the scaffolding is the collapse of the scaffolding system due to product quality, improper construction, natural disasters, etc., resulting in casualties.

1. The geometric composition of building scaffolding is unreasonable: scaffolding commonly used in construction engineering,

   1. Around 11:30 on November 21, 2016.

   1. The conditions of the foundation and support of the scaffolding and support must meet the requirements of the installation to avoid uneven and excessive settlement.

   2. The bottom of the scaffolding must be padded with a plate of not less than 5 × 15 × 200cm. The inner and outer poles are tied with sweeping poles. The cedar pillars are buried 50cm deep and the sweeping poles are tied.

   3. The distance between the poles of the structure scaffolding shall not be greater than 1.5m, the distance between the large crossbars shall not be greater than 1.2m, and the distance between the small crossbars shall not be greater than 1.5m.

   4. The pitch of the decorative scaffolds shall not be greater than 1.8m, the diameter of steel pipes shall not be greater than 1.5m, the distance between large crossbars shall not be greater than 1.8m, and the distance between small crossbars shall not be greater than 1.5m.

   5. The scaffold must be tied firmly with the structure according to the floor. The vertical distance of the node must not exceed 4m, and the horizontal distance must not exceed 6m. The strength of the material used for the connection must not be lower than the strength of the double-stranded 8 # lead wire. top. Tall shelves must not be tied with flexible materials.

   6. The operating surface of the scaffolding must be covered with scaffolding, the distance from the wall must not exceed 20m, and there must be no gaps, probe boards and flying boards. Horizontal nets are set under the scaffolding. Scaffolding joints must be provided with double rows of small crossbars, and the distance between the two small crossbars must not be greater than 30cm.

   7. The operating surface of the scaffolding must be provided with two guardrails and a footboard or a guardrail, with a safety net hanging up and tightly sealed. The protective height should be 1.5m. It is strictly forbidden to use bamboo fences as scaffolding.

   8. Scissors must be installed longitudinally for external scaffolds with a height above 20m (including 20m). Scissors should be installed along with the shelf to ensure the stability of the shelf.

   9. The scissor supports of the shelf should be erected from the longitudinal ends of the scaffold and the gable wall. The erection width is 6 poles, and one set is arranged every 6 poles. The angle between the scissor brace and the horizontal plane is 45 to 60 degrees.

   10. The bottom of the scissor brace must be inserted into the pad, and the intersection with the vertical pole must be added with a fastener. Scissors should be overlapped, the overlap length should be no less than 60cm, and at least two fasteners should be added at the overlap.

   11. When the height of the scaffold is below 20m, forward and reverse oblique support can be set.

   12. The two ends of the scaffolding bars that intersect should be larger than 10cm to prevent the bars from slipping off.

   13. When the vertical pole cannot reach the foundation due to construction, it should be calculated to add a figure-shaped brace at the broken pole, and the force at the broken pole is offloaded to the shelves on both sides.

   14. The scaffolding on the top of the building should be 1.5m higher than the raised eaves of the slope roof, 1m higher than the daughter wall of the flat roof, and two guard rails should be tied to the higher part. Hang safety nets side by side.

   15. The internal and external load-bearing scaffolds used in the structure must not exceed 2646N / M2 in use. Placing bricks on the scaffold is not allowed to place three-layer bricks in a single row. The load of the interior and exterior scaffolding during decoration shall not exceed 1960N / M2.

   16. The width of the pedestrian ramp shall not be less than 1m, the slope shall be 1: 3 (height: long), the width of the material transport ramp shall not be less than 1.5m, and the slope shall be 1: 6.

   17. Both sides of the ramp and the periphery of the platform shall be provided with protective railings and footboards or full-hanging vertical nets. The vertical nets shall be fastened to the ramp. More than 30cm.

   18. The distance between the uprights of the ramp is 1.5m, the distance between the large crossbars is 1.2 ~ 1.4m, the distance between the small crossbars placed on the inclined crossbars is not greater than 1m, and the small crossbars at the turning platform should be properly encrypted.

   19. Scissors should be provided on both sides and ends of the ramp. Independently erected ramps should be connected with wall poles.

   20. Head guards shall be provided at the ramps.

   21. According to the construction requirements and setting conditions, choose a suitable and reliable setting scheme and construction form.

   22. Ensure that the scheme design achieves reliable structure, reasonable structure and stable setting.

   23. Calculate the practical load according to the conditions that may occur during construction, which can be higher than the specified planting, but not lower than the specified value. Calculate the practical load according to the conditions that may occur during construction, which can be higher than the specified planting, but not lower than the specified value.

   24. The erection of scaffolding and brackets should be carried out in strict accordance with design requirements and specifications to avoid excessive installation stress and deformation.

   25. The erected scaffolds and supports can only be delivered after passing the experience. Scaffolding that rises with the progress of the project shall be accepted every time it is raised.

   26. The practical loads of scaffolds and supports must be controlled strictly in accordance with design regulations.

   27. During the use of scaffolds and supports, the work and deformation of the structure should be carefully checked. It is strictly prohibited to dismantle the rods, wall parts and protective facilities at random. Pay attention to the presence of the pole bottom plate, the rods and the structure. Significant deformation and other abnormal conditions, and promptly resolve them.

   28. The overall lifting scaffold must be approved by the company's competent authority before it can be used.

   29. During construction, safety personnel shall strengthen supervision and inspection, timely discover and stop illegal construction activities, and avoid accidents caused by scaffold collapse due to incorrect construction methods and construction procedures.