1. When starting to erect the uprights, install one outrigger every 6 spans until the wall ties are stable. These outriggers can then be removed as needed.
2. Use rigid connections for the wall ties, securing them to the concrete columns and beams with expansion bolts. Arrange the wall ties in a diamond pattern, starting from the first longitudinal horizontal bar at the bottom layer. When reaching a construction point with wall ties, install the wall ties immediately after erecting the uprights, longitudinal horizontal bars, and transverse horizontal bars at that point.
3. The couplers connecting adjacent uprights must not be at the same height. The top of the upright should extend 1 meter above the parapet wall.
4. Scaffolding must have ground-level bracing. Longitudinal ground-level bracing should be secured to the uprights no more than 200mm from the base using right-angle couplers.
5. Longitudinal horizontal bars should be erected in a circular pattern around the perimeter, secured to the inner and outer corner uprights using right-angle couplers. Longitudinal horizontal bars should preferably be located inside the uprights and should be at least 3 spans long. Longitudinal horizontal bars are extended using butt couplers. Butt couplers are staggered, and joints of adjacent horizontal bars should not be located in the same span or at the same time. The opening of the butt coupler should face upwards.
6. Scissor bracing should be erected simultaneously with the uprights and longitudinal horizontal bars. The lower end of each bottom-level diagonal bar must be supported on a base plate. Scissor bracing spans 7 uprights, with the diagonal bar at an angle of 45 degrees or more to the ground. 7 sets of scissor bracing are installed on the front of the scaffold, and 3 sets on the sides, for a total of 20 sets. Scissor-bracing steel pipes are extended using an overlapping method, with an overlap length of not less than 1 meter, secured with 3 swivel couplers. The distance from the edge of the end coupler cover plate to the bar end should not be less than 100mm. The diagonal bars of the scissor bracing are secured with swivel couplers to the extended end of the intersecting transverse horizontal bar or the upright.
7. Scaffold boards must be fully laid, with boards tightly against each other. When using butt joints, two small horizontal bars are installed at the joint and securely tied with wire.
8. Dense safety netting should be installed on the outer side of the scaffolding as required, inside the outer row of uprights. The netting must be securely fastened to the scaffold tubes. At corners, the netting should be securely tied to the uprights using wooden strips. The netting must be taut and stretched.
9. A horizontal safety net should be installed 3.2 meters from the first floor, with horizontal bars near the building. The inner edge of the netting should be firmly fixed to the scaffold tubes without gaps. When the building reaches the third floor’s foundation slab reinforcement, another layer of horizontal safety netting should be installed.
10. Erection workers must be qualified professional scaffolders who have passed the safety technical assessment and management rules for special operations personnel.
11. Erection workers must wear safety helmets, safety belts, and non-slip shoes.
12. Scaffolding erection should be stopped during winds of level six or above, and in foggy or rainy weather.
13. No work is permitted under the influence of alcohol.
14. When erecting scaffolding, the ground should be fenced off, warning signs should be set up, and a dedicated person should be assigned to guard it. Non-operating personnel are strictly prohibited from entering.
Post time: Jan-07-2026