1. What is the role of scissor brace on steel frame scaffolding?
A: To prevent longitudinal deformation of the scaffold and to enhance the overall rigidity of the scaffold.

    2. what are the safety regulations when there are external power lines on the outside of the scaffold?
A: It is strictly forbidden to build a ramp up and down the scaffold on the side of the external power line.

    3. can scaffolding be connected with unloading platform?
A: No, should be set up independently unloading platform.

    4. which steel pipes are not allowed to be used for scaffolding?
A: rust serious, flattened, bent, cracked steel pipe.

    5. which fasteners shall not be used ?
A: Where there are cracks, deformation, shrinkage, slip wire are not allowed to use.

    6. what sign should be hung on the unloading platform ?
A: The sign of limited load.

    7. door frame scaffolding should not exceed the general height of how many meters?
A: Not more than 45 meters.

    8. steel, bamboo mixed scaffolding is available ? Why?
A: Not available. The basic requirement of scaffolding is that the scaffolding as a whole will not be shaken or deformed and will remain stable after the force is applied. The nodes of the bars are the key to force transmission, and the mixed scaffolding, no reliable tying materials, resulting in loose nodes, the frame will be deformed, can not meet the force requirements of the scaffolding.

    9. what protective equipment should be worn by scaffold erection personnel?
A: Wear safety helmet, safety belt and non-slip shoes. 

    10. during the use of scaffolding, which bars are strictly prohibited to remove?
A: (1) longitudinal and transverse horizontal rods at the main nodes, longitudinal and transverse sweeping rods; (2) connecting wall pieces.

    11. what are the requirements for the overall verticality and horizontal deviation of scaffolding in the erection of h frame scaffolding?
A: The allowable deviation of verticality is 1/600 and ± 50mm of the scaffold height; the allowable deviation of horizontality is 1/600 and ± 50mm of the scaffold length.

    12. what anti-slip measures should be taken for man-ladders?

A: There should be strong hinges and zippers to limit the development, and anti-slip measures should be taken when using on slippery ground.