First, when should scaffolding be accepted?
Scaffolding should be accepted at the following stages
1) After the foundation is completed and before the frame is erected.
2) After the first step of large and medium-sized scaffolding, the large crossbar is erected.
3) After each 6~8m height is erected.
4) Before the load is applied to the working surface.
5) After reaching the design height (each layer of scaffolding is inspected once for structural construction)
6) After encountering winds of level 6 or above or heavy rain, and after the frozen area thaws.
7) After being out of use for more than one month.
8) Before demolition.
Second, 10 items for scaffolding acceptance
① Foundation and foundation
② Drainage ditch
③ Pad and bottom support
④ Sweeping rod
⑥ Scaffolding board
⑦ Wall connection
⑤ Main body
⑧ Scissor support
⑨ Up and down measures
⑩ Frame anti-fall measures
Third, 10 items for scaffolding acceptance
1. Foundation and foundation
1) Whether the construction of the scaffolding foundation and foundation has been calculated according to the relevant regulations based on the height of the scaffolding and the soil conditions of the erection site.
2) Whether the scaffolding foundation and foundation are compacted.
3) Whether the scaffolding foundation and foundation are flat.
4) Whether there is water accumulation in the scaffolding foundation and foundation.
2. Drainage ditch
1) Remove and level the debris at the scaffolding site, and make the drainage unobstructed.
2) The distance between the drainage ditch and the outermost row of scaffolding poles should be greater than 500mm.
3) The width of the drainage ditch is between 200mm and 350mm, and the depth is between 150mm and 300mm.
4) A water collection well (600mmx600mmx1200mm) should be set at the end of the ditch to ensure that the water in the ditch is discharged in time.
3. Pads and bottom brackets
1) The acceptance of scaffolding pads and bottom brackets is determined according to the height and load of the scaffolding.
2) The pad specifications of scaffolding below 24m are (width greater than 200mm, thickness greater than 50mm, length should not be less than 2 spans) to ensure that each vertical pole must be placed in the middle of the pad and the pad area must not be less than 0.15㎡.
3) The thickness of the bottom pad of the load-bearing scaffolding above 24m must be strictly calculated.
4) The scaffolding bottom bracket must be placed in the center of the pad.
5) The width of the scaffolding bottom bracket shall not be less than 100mm and the thickness shall not be less than 5mm.
4. Sweeping rod
1) The sweeping rod must be connected to the vertical pole, and the sweeping rod must not be connected to the sweeping rod.
2) The horizontal height difference of the sweeping rod shall not be greater than 1m, and the distance from the slope shall not be less than 0.5m.
3) The longitudinal sweeping rod shall be fixed to the vertical pole at a distance of no more than 200mm from the base epidermis with a right-angle fastener.
4) The horizontal sweeping rod should be fixed to the vertical pole close to the bottom of the longitudinal sweeping rod with a right-angle fastener.
5. Main body
1) The acceptance of the scaffolding main body is calculated according to the construction needs. For example, the spacing between the vertical poles of the ordinary scaffolding must be less than 2m, the spacing between the longitudinal horizontal poles must be less than 1.8m, and the spacing between the vertical horizontal poles must be less than 2m. The scaffolding bearing the building must be accepted according to the calculation requirements.
2) The vertical deviation of the vertical pole shall be implemented according to the data in Table 8.2.4 of the Technical Specifications for Fastener-Type Steel Pipe Scaffolding for Building Construction JGJ130-2011.
3) When the scaffolding poles are extended, except for the top of the top floor, the joints of the other layers and steps must be connected with butt fasteners. The joints of the scaffolding frame should be staggered: the joints of two adjacent poles should not be set in the same synchronization or span; the horizontal distance between two adjacent joints of different synchronization or different spans should not be less than 500mm; the distance from the center of each joint to the nearest main node should not be greater than 1/3 of the longitudinal distance; the lap length should not be less than 1m, and 3 rotating fasteners should be set at equal intervals. The distance from the edge of the end fastener cover to the end of the lapped longitudinal horizontal pole should not be less than 100mm. In the double-pole scaffolding, the height of the secondary pole shall not be less than 3 steps, and the length of the steel pipe shall not be less than 6m.
4) The small crossbar of the scaffolding should be set at the intersection of the vertical bar and the large crossbar and must be connected to the vertical bar with a right-angle fastener. When at the operating level, a small crossbar should be added between the two nodes to bear and transfer the load on the scaffolding board. The small crossbar must be fixed with a right-angle fastener and fixed to the longitudinal horizontal bar.
5) The fasteners must be used reasonably during the erection of the frame, and must not be substituted or misused. Cracked fasteners must never be used in the frame.
Post time: Jan-06-2025