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Metal Scaffold (Technique Requirements (General Requirements (Material…
Metal Scaffold
Technique Requirements
Tubular Scaffolds
Independent tied metal scaffold
Metal putlog scaffold
no
Free standing metal tower
Stationary metal tower
Mobile Metal scaffolds
Anchor
General
Composition
Tubes
Bracing
longitudinal
plane
ledger
Transoms
ledgers
Standards
Weak points
Couplers
right angle
swi
Ties
Access towers
Proprietary Metal Scaffold Systems
General Requirements
Support
Material
C
Board/ Planks
Straight grained
Large knots
dry rots
unpainted
wormholes
Standards
BS2482
Scaffolding Components
質結硬缺維
Adequate strength
Free from patent defects
Good construction
Properly maintened
Sound material
Standards
BS 1139
BS EN 1004
BS EN 74
BS EN 12810
BS EN 39
Types
Painted
Unproteted
Hot dipped galvanized
Tube
End
Surface flaw
Undue rust
Distorsion
Lumination
Corrosion
Split
Section
Splits
Cracks
Corrosion
Straight
Couplers
Erection/ Alternation/ Dismantling
Sufficient
Ties
Cast-In Anchorage
Drilled-in anchorage
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