1. Foundation
1) Whether the construction of the scaffold foundation and foundation has been calculated according to the scaffolding height and the soil quality of the erection site by relevant regulations.
2) Whether the foundation and foundation of the scaffold are compacted.
3) Whether the scaffolding foundation and foundation are levels.
4) Whether there is water in the foundation and foundation of the scaffold.
2. Drain
1) Scaffolding is set up to remove debris from the site, level it, and make drainage unblocked.
2) The installation distance of the drainage ditch should be greater than 500mm from the outermost pole of the scaffold.
3) The width of the drainage ditch is between 200mm~350mm, and the depth is between 150mm~300mm.
4) A collection well (600mm×600mm×1200mm) should be set at the end of the ditch to ensure that the water in the ditch is discharged in time.
3. Backing plate and bottom support
1) The acceptance of the scaffolding board and bottom support is determined according to the height and load capacity of the scaffold.
2) The specification of the backing board of the scaffold below 24m is (width greater than 200mm, thickness greater than 50mm, the length should not be less than 2 collapses), ensure that each pole must be placed in the middle of the backing board, and the area of the backing board shall not be less than 0.15 square meters.
3) The thickness of the bottom pads of the scaffolds over 24m must be strictly calculated.
4) The scaffolding support must be placed in the center of the backing board.
5) The width of the scaffolding base shall not be less than 100mm and the thickness shall not be less than 5mm.
4. Sweeping pole
1) The sweeping pole must be connected to the vertical pole, and must not be connected between the sweeping pole and the sweeping pole.
2) The level difference of the sweeping pole shall not be greater than 1m, and the distance from the side slope shall not be less than 0.5m.
3) The vertical sweeping pole should be fixed on the pole not more than 200mm away from the epithelium of the base with right-angle fasteners.
4) The horizontal sweeping pole should be fixed on the vertical pole immediately below the vertical sweeping pole with right-angle fasteners.
5. Subject
1) The main experience of scaffolding is calculated according to construction needs. For example, the distance between the vertical poles of ordinary scaffolding must be less than 2m, the distance between vertical horizontal bars must be less than 1.8m, and the distance between vertical horizontal bars must be less than 2m. The scaffolding carried by the building must be checked and accepted by the calculation requirements.
2) The vertical deviation of the pole should be implemented according to the data in Table 8.2.4 in the technical specification for construction fastener steel scaffolding JGJ130-2011.
3) When the scaffold pole is extended, except for the top of the top layer, lap joints can be used. The joints of the other layers must use butt fasteners to connect the scaffold body. The joints of the scaffold body should be arranged in a staggered manner: the joints of two adjacent rods should not be set in synchronous or Within the same span; the horizontal staggering distance between two adjacent joints of asynchronous 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 overlap length should not be less than 1m, 3 rotating fasteners should be installed at equal intervals, and the distance from the edge of the end fastener cover plate to the end of the overlapping longitudinal horizontal rod should not be less than 100mm. In the double pole scaffold, the height of the auxiliary 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 scaffold should be set at the intersection of the vertical rod and the large crossbar and must be connected with the vertical rod using right-angle fasteners. When in the operation layer, a small crossbar should be added between the two nodes to bear To transfer the load on the scaffold, the small crossbar must be fixed with right-angle fasteners and fixed on the longitudinal horizontal rod.
5) The fasteners must be used reasonably during the erection of the frame. No substitute or misuse of fasteners is allowed. Fasteners with cracks must not be used in the frame.
Post time: Oct-13-2020