What is the maximum erection height of scaffolding

Single-row scaffolding is not used too much at present, it has been banned in individual places, Jinan has strictly prohibited the use of single-row scaffolding The maximum height of double-row scaffolding erected in accordance with the regulations is 50m, you need to determine by calculation, the things that need to be calculated in the specification must meet the requirements, especially the bearing capacity of the foundation or the bearing capacity of the floor slab I have seen The highest scaffolding height is more than 70m, which is a secondary transformation project, because the main structure has been completed in the early stage, and the cantilevering is more difficult. Therefore, the use of floor scaffolding at the bottom of 30m using double poles, and in strict accordance with the two-step three-span plus tie point, at the same time in 20m, 40m, 60m to do a good job of unloading measures, one is to use the wire rope cable, the other is to add diagonal bracing steel pipe from the floor slab due to the large time in the past of the project, the above data can not be remembered, but generally in the above personal opinion that the measures are appropriate, the scaffold can be erected to more than 70m, but if it is a new high-rise, It is recommended to use cantilever scaffolding, after all, the maximum erection height is 50m, and the supervision department does not allow you to exceed this height.

The construction method of the 80m tower generally adopts the sliding form construction process, and the scaffold is designed with the sliding form, which is both safe and convenient, and the cost can also be greatly saved!

The single-row scaffold is 25 meters, the double-row scaffold is generally 50 meters, and the lower 25-meter range is a double-row double pole.

I'm going to erect an 80m high tower now, and the kind of scaffolding should be used for the building.

The specification requires: a single row should not exceed 20 meters, a double row of scaffolding should not exceed 50 meters, and more than 50 scaffolding needs to be erected in sections. For example, to do cantilever scaffolding, the height of the cantilever frame should not exceed 20 meters at each step. If it is exceeded, it needs to be expertly demonstrated.

I agree with the upstairs, and then there is about scaffolding, you can also take a look at the following specifications: Safety Technical Specifications for Fastener-type Steel Pipe Scaffolding in Building Construction, Safety Technical Specifications for Gantry Steel Pipe Scaffolding in Building Construction, Several Provisions on the Prevention of Falling Accidents at Heights in Construction Construction Safety Technical Specifications for Work at Height, JGJ80-91 Safety Technical Regulations for Work at Height in Building Construction.

1. In the specification of the requirements for the height of scaffolding erection: the height of scaffolding erection requires that the height of single-row scaffolding should not exceed 24m, and the height of double-row scaffolding should not exceed 50m, and the cantilever scaffolding.

The erection height should not exceed 20m, full of scaffolding.

The erection height should not exceed 36m, the erection height of the full support frame should not exceed 30m, 2, when the full support frame is less than 4 spans, it should not exceed the rubber, the erection height of the disc buckle formwork support should not exceed 24m, the structure requirements of the scaffold rod, 1 vertical pole erection requirements are the key components of the scaffold, the main stress rods, and the components responsible for transmitting and bearing the force. The spacing of the poles should be evenly set and should not be greater than the design spacing, otherwise the bearing capacity of the poles will be reduced.

3. The erection height of mobile scaffolding is generally not more than 15 meters to 20 meters, which can be in accordance with the "Safety Technical Specifications for Fastener Steel Pipe Scaffolding in Building Construction", "Safety Technical Specifications for Gantry Steel Pipe Scaffolding in Building Construction", and "Several Regulations on the Prevention of Falling Accidents from Heights in Construction Engineering".

The height of scaffolding cannot be generalized, and its height is different depending on the type of use. The details are as follows:

1. If a single row of scaffolding is erected, the height shall not exceed 24 meters;

2. The height of double-row scaffolding shall not exceed 50 meters;

3. Cantilevered scaffolding.

The height of the ride must not exceed 20 meters;

4. The height of the scaffolding of the whole hall shall not exceed 36 meters.

Compared with the general structure, the working conditions of scaffolding have the following characteristics:

1. The variability of the load is large;

2. The fastener connection node is semi-rigid, and the rigidity of the node is related to the quality of the fastener and the installation quality, and there is a large variation in the performance of the joint;

3. There are initial defects in the scaffolding structure and components, such as the initial bending and corrosion of the rods, the erection size error, and the load eccentricity are large;

4. The connection point with the wall has a large variation in the constraints of the scaffolding.

The above content reference: Encyclopedia - Scaffolding.

As of February 2020, the erection of floor-mounted steel pipe scaffolding projects with a height of 24m and above requires expert demonstration.

Special construction plan for critical projects exceeding a certain scale.

If the conclusion is "passed" after expert argumentation, the construction unit may refer to the expert opinions to revise and improve it on its own; If the conclusion is "adopted after revision", the expert opinion should clarify the specific content of the amendment, and the construction unit shall revise it in accordance with the expert opinion, and perform the relevant review and review procedures before it can be implemented, and the modification shall be informed to the expert in a timely manner.

The scaffolding project requires the erection of floor-mounted steel pipe scaffolding projects with a height of 24m and above (including lighting shafts and elevator shaft scaffolding). Attached lifting scaffolding.

Engineering annihilation. Cantilevered scaffolding works. Gondola for working at height. Discharge platform.

Operating platform engineering. Special-shaped scaffolding engineering. Erection of floor-mounted steel pipe scaffolding projects with a height of 50m and above.

Attached lifting scaffolding works or attached lifting operation platform projects with a lifting height of 150m and above. Cantilevered scaffolding works with a height of 20m or more are erected on the segmented scaffold.