As a frequently used temporary structure on construction sites, scaffolding safety requires attention to five core risk points:
First, the inadequate foundation hardening of the scaffolding.
Problem: Scaffolding uprights are suspended/settled/water accumulates.
Solution: ≥50mm thick wooden baseboards + C20 concrete hardening is required; drainage ditches must be provided; brick base layers are prohibited.
Second, missing wall ties on the scaffolding.
Problem: Entire scaffolding layers are missing, or the spacing exceeds 4 meters.
Solution: For main structures ≤24m, use two steps and three spans; for >24m, use two steps and two spans. Cantilevered ends must be secured with U-shaped clamps layer by layer (anchoring end ≥1.25 times the cantilever section). Anti-slip fasteners must be installed on corner uprights.
Third, inadequate scaffolding materials… Qualified
Problem: Steel pipe wall thickness of scaffolding <3.24mm/coupler slippage
Solution: Three certificates acceptance + torque test (40-65N·m), sleeve extension lever arm is prohibited
Fourth, scaffolding protection defects
Problem: Scaffolding guardrail <1.2m/missing kickboard
Solution: Guardrail ≥1.2m with 180mm plywood kickboard, vertical netting with HDPE flame retardant material, horizontal netting with nylon/PP anti-corrosion material, edge rope ≥8mm
Fifth, scaffolding overload risk
Problem: Scaffolding support frame material stacking/top plate overload
Solution: Load must not exceed design value, >2kN/m² requires back-top reinforcement
What are the key standard quick reference links for scaffolding
(1) Scissor bracing: 24m+ double-row continuous scaffolding, overlap ≥1m with 3 fasteners
(2) Cantilevered I-beams: anchorage end ≥1.25 times the length, 2 U-shaped shackles (spacing ≥200mm)
(3) Scaffold boards: fully laid and fixed, protruding boards are tied with 3.2mm galvanized steel wire
(4) Elevator shaft: each floor is hard-enclosed + scissor bracing, protective door with external lock
What are the life-saving rules for scaffolding construction?
① Over 50m ground scaffolding/20m cantilever scaffolding requires expert review
② Scaffolders must hold special certificates and receive daily safety briefings
③ Install fall protection nets + 10mm plywood hard enclosure every 3 floors
④ Apply BIM simulation + deformation monitoring equipment
⑤ When dismantling, dismantle wall ties simultaneously, and do not dismantle the entire floor first.
Post time: Jan-16-2026