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Climbing protection screen
1. Attached lifting scaffold (referred to as climbing protection screen) refers to the construction of a certain height and attached to the engineering structure, relying on its own lifting equipment and devices, which can be layered with the engineering structure 。Climbing or descending, external scaffold with anti overturning and anti falling device; it can change high-altitude operation into low-level operation, and change suspended operation into internal operation of scaffold body remarkable low-carbon, high-tech content and more economic, safer, more convenient and other characteristics.
2. Climbing protection screen characteristics:
(1). The intelligent and accurate control system, reliable operation
(2). The double set of anti-falling device and positioning device, safe and secure
(3). The automatic reciprocating cycle of power equipment to reduce the labour intensity of workers
(4). All walkways are unobstructed, and the bottom is completely sealed
(5). Combined with integral hoisting, the erection speed is fast
(6). Moderate weight of components and fittings, easy installation for workers
(7). The service life of the main components after hot-dipping zinc treatment reaches 20 years, the cost of single maintenance is reduced by 60%, and the storage cost is reduced by 50%
(8). It is a strong versatility of components, more turnover times, green environmental protection concept design, reuserate of more than 95 %
（2）. Each lifting point shall not be less than one anti falling device, which must work under the use and lifting conditions;
（3）. The anti falling device must be mechanical，it is forbidden to use the manual device which needs to be reorganized every time of lifting.
5. Lifting equipment
（2）.The through center hydraulic jack shall be selected as the lifting power. The piercer bar shall be made of round steel with an outer diameter of 40mm and processed into a slub shape.
6.Synchronism control device
（1）.When the load of a certain stand exceeds 15% of the design value, the automatic alarm and display alarm stand shall be in the form of sound and light; when the load exceeds 30%, it shall be able to make the rise automatic shutdown of downcomer;
（2）.It shall have the functions of overload, loss of load, alarm and shutdown.
No. | Sub item | unit | Main indicators | Actual indicators of the project |
1 | Frame width | m | 0.6 |
|
2 | Frame height | m | 4.5 storey high |
|
3 | Supporting span | m | ≤7.0 |
|
4 | Stand height | m | 1.0～4.5 | 2～3 |
5 | Overhanging length of frame end | m | ≤2.0 |
|
6 | Self weight of frame | t | 2.0-2.4 | |
7 | Distance between operation floor and wall | mm | ≤200 | 200 |
8 | Allowable construction load |
| 3×2kN/㎡or2×3 kN/㎡ | The allowable load of 3-storey construction at the same time is 2Kn / m2
The allowable load of two layers constructed at the same time is 3kn / m2 |
9 | Climbing frame lifting time | hour | 1.5-2 hours / floor | 1.5-2hours |
10 | Electric hoist power | w | 500 | 500 |
11 | Speed up | mm/min | 120 | 120 |
12 | Rated tonnage of electric hoist | t | 7.5 | 7.5 |
13 | Embedded horizontal deviation | mm | 30 | 30 |
14 | Fire protection standard for climbing platform |
| Fire prevention | Fire prevention |
15 | Construction load transfer floor | floor | 2floors | 2floor |
16 | Number of guide seats | set | 3 | 3 |
17 | Does electric hoist need turnover |
| unwanted | unwanted |
18 | Maximum weight of turnover parts | KG | 25 | 25 |
19 | Number of floors per lift | floor | 1 | 1 |
20 | Falling distance | mm | 20-60 | 20-60 |
21 | Number of fall arresters | individual | Each machine position is equipped with 2 roof fall arrestors | Each machine position is equipped with 3 roof fall arrestors |
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