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Can scaffolding be used during real stone paint construction?

The construction of real stone paint (including other finishes) on the exterior walls of high-rise buildings can be carried out using hanging baskets instead of scaffolding.

1. "Suspension Basket for Working at Heights" GB19155? Definition of Suspension Basket: The suspension mechanism is erected on a building or structure, and the hoist drives the suspension platform to run up and down along the facade through wire ropes. Suspension equipment.

2. General procedures for the construction of hanging baskets on the exterior walls of high-rise buildings with real stone paint: Preparation of construction plans---Material and equipment preparation--Operator training---Safety and technical briefing---Materials and equipment Acceptance----Installation and acceptance of roof hanging basket suspension mechanism---Installation, debugging and acceptance of hanging basket (including wire rope, etc.)---Cement mortar base plastering---Acceptance----Leveling---Spray sealing Primer---elastic ink line division---attach double layers of tape to divide strips---spray the first coat of real stone paint---tear off the first layer of tape---spray the second coat of real stone paint---remove the second coat of real stone paint Second layer of tape---Separation joint treatment---Spray topcoat--Acceptance--Removal of the hanging basket.

3. "Safety Rules for Cradles Working at Heights" JGJ5027-1992 (extracts of some provisions)

3 Terminology

3.1 The lifting mechanism can make the crane The transmission mechanism of the basket platform running up and down.

3.2 Suspension basket platform is a suspended structural member that can move up and down so that the operator can reach the working place of the building or structure.

3.3 Suspension mechanism is a structural member used to fix the steel wire rope and safety wire rope of the lifting platform and erected on the building or structure.

3.4 Safety lock When the gondola platform drops beyond the limit speed, it is a device that can automatically lock the gondola platform. This device cannot automatically reset.

3.5 Stroke limit limits the running distance and position of the hanging basket platform in both the upper and lower directions.

3.6 Rated load: The maximum value of the total mass of workers, tools, equipment and materials that the hanging platform platform is allowed to bear.

4 General requirements

4.1 The working environment temperature of the hanging basket is -20℃~40℃.

4.2 The gust wind speed of the hanging basket platform at the working place shall not be greater than 10.8m/s (equivalent to level 6 wind force).

4.6 The operator of the hanging basket must be a person who is suitable for working at heights and has undergone technical training and passed the examination.

7.3 The bottom plate of the hanging basket platform must have anti-slip measures.

7.4 The connection between the hanging basket platform and the lifting mechanism must be firm and reliable, without any looseness, and should be checked frequently.

7.5 The hanging basket platform should be equipped with hooking devices for safety belts and tools.

7.6 The minimum passage width within the hanging basket platform shall not be less than 400mm, and the effective floor area shall not be less than 0.25m2 per person.

7.7 The hanging basket platform must be equipped with a fixed safety guardrail. The height on the side of the building is not less than 800mm, and the height on the rear side and both sides is not less than 1100mm. The guardrail should be able to withstand 1000N horizontal movement. concentrated load.

7.9 Baffles with a height of not less than 100~150mm should be installed around the bottom plate of the hanging basket platform, and the gap between the baffle and the bottom plate should not be greater than 5mm.

7.10 The hanging basket platform should have guide wheels that slide on the surface of the building or be equipped with a buffer device to ensure the stability of the hanging basket platform and avoid collision with the wall.

7.11 If the hanging basket platform is equipped with a door, the door shall not open outwards, and an electrical interlocking device shall be installed on the door.

7.12 The operating device for the normal operation of the hanging basket platform should be installed on the hanging basket platform, and electrical equipment that can be moved and continuously pressed by hand and is not affected by the weather should be selected.

8.6 When the transmission mechanism of the lifting mechanism fails electrically, it should be equipped with a hand drive device that can be operated by no more than two people.

8.7 The lifting mechanism must be equipped with brakes, and generally there should be two independent sets of brakes. Each set can stop and stop the gondola platform with a rated load of 125.

8.7.1 Main brake This brake should be able to stop the hanging platform platform within 100mm, and adopt a normally closed brake.

The main brake should be blade type or disc type, and be installed as a whole on the lifting mechanism or lifting motor. The position of each part of the brake should be uniform for easy maintenance and adjustment, and should be protected by waterproofing.

8.7.2 Auxiliary brake

The auxiliary brake should generally be rigidly installed on the frame or base of the lifting mechanism. Normally closed brakes or manual mechanical brakes can be used. This brake is mainly used when the lifting mechanism is driven by hand, so that the hanging basket platform can be stopped within a range of 100mm. The brake should be installed in a position that is convenient for operation, maintenance and adjustment, and has waterproof protection.

8.7.3 If the drum of the winch-type lifting mechanism is installed on the roof trolley (the power unit is located on the roof), it must also be equipped with a brake and must comply with the requirements of 8.7.1 and 8.7.2 .

8.8 The maximum rated speed of the lifting mechanism for up and down operation shall not exceed 10m/min.

9 Requirements for safety protection devices

The hanging basket must generally be equipped with brakes, travel limits, safety locks, etc., and must pass the inspection before installation.

9.1 Brake The brake of the hanging basket must comply with the requirements of 8.7, 8.7.1, 8.7.2 and 8.7.3.

9.2 Stroke limit

9.2.1 The hanging basket must be equipped with upper and lower limit switches to prevent the hanging basket platform from rising or falling to the end point beyond the range of the stroke.

9.2.2 The stroke limiter must be installed in such a way that the hanging basket platform itself is directly touched.

9.3 Safety lock

9.3.1 The hanging basket must be equipped with a safety lock, and a safety lock similar to the one used on the lifting mechanism must be added to the hanging platform of the hanging basket. Model safety wire rope. Each safety wire rope must have a safety lock that cannot be reset automatically.

9.4 If necessary, the hanging basket must be equipped with an anti-tilt device.

9.5 An overload protection device should be installed on the hanging basket.

10.5.2 Inspection cycle For the wire rope of the hanging basket, it should be inspected at least twice a month after use, and should comply with the provisions of 2.4.1 in GB 5972.

10.5.3 Inspection parts

The entire working length of the wire rope must be inspected. The passing pulley or drum must also be carefully inspected. Other contact surfaces and those wire rope segments that are wound forward and backward. Wire ropes near end joints should be carefully inspected. And should comply with the provisions of 2.4.2 in GB5972.

12 Counterweight requirements

12.1 The suspension mechanism of the hanging basket or the roof trolley must be equipped with appropriate counterweights.

12.2 The counterweight should be accurately and firmly installed on the counterweight point, and a counterweight of sufficient quality should be configured according to the drawings. The hanging basket must be verified by the safety inspection crane before use.

12.3 The anti-overturning coefficient is equal to the ratio of the counterweight moment to the forward tilting moment, and the ratio shall not be less than 2.

14 Load-bearing requirements for the support of the building or structure The support of the building or structure should be able to support the entire load of the hanging basket.

15 Other requirements

15.1 Workers on the hanging basket platform must wear safety belts, and the safety belts are allowed to be connected to the hanging basket platform.

15.2 Workers on the hanging basket platform must strictly abide by the operating procedures, and overloading is strictly prohibited.

15.3 When the movement of the hanging basket platform along the exterior wall needs to be guided by guide components, such components should be provided on the exterior wall. Exterior wall components should enable operators in the gondola platform to safely approach the parts to be worked on, without causing them to lean over in the air.

15.4 To ensure the safety of the public, fences or protective measures must be set up around the hanging basket operation area, and eye-catching signs should be attached.

4. Picture of hanging basket (extracted from Baidu Pictures)