(1) A protective shed shall be erected on three sides of the lower part of the gantry, with the front width not less than 2m and the two sides not less than 1m, and the ceiling with a derrick height exceeding 30m shall be double-decked.
(2) there is an external pressure door at the bottom entrance of the gantry, a safety door at the entrance of the floor passage, guardrails and skirting boards on both sides of the passage.
(3) The portal hanging basket should be equipped with protective safety devices such as falling door, jack-up limit and spring braking.
(4) The bottom of the gantry is equipped with reliable grounding devices, which are grouped together.
(5) The web bar and connecting bolt of the portal frame itself are complete, and the cable and the hard support of the building are set up completely and firmly according to the regulations.
⑥ In streets or crowded areas, three bread safety nets should be used for protection above the falling shed.
2, scaffolding:
(1) Pay attention to materials, steel and bamboo shall not be mixed, and high-rise scaffolding shall be specially designed and calculated.
(2) The bottom of the stud shall be backfilled firmly and smoothly.
(3) according to the provisions, set up support points, bracing with steel pipe, joint erection of not less than 40cm.
(4) Spread the isolation basketry every four steps, and set it in two steps into the wall, and set the baseboard or safety net on the outside.
⑤ Install the ascending ring escalator, and set protective railings on the outside. The rotating platform shall be equipped with two horizontal railings.
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