Building Construction Handbook, Eighth Edition

Scaffolds ~ these are temporary working platforms erected around

the perimeter of a building or structure to provide a safe working

place at

a

convenient height. They are usually required when the

working height or level is 1„500 or more above the ground level.

All scaffolds must comply with the minimum requirements and

objectives of the Work at Height Regulations 2005.

Component Parts of a Tubular Scaffold ~

standard

all tubes to

comply with BS EN 39

or BS 1139-1.2

transom or

putlog

ledger

ledger

double coupler

putlog coupler

standard

ledger

base plate with

locating spigot

plan size 150 ×

150

transverse horizontal

member called a

transom fixed to ledgers

HORIZONTAL COMPONENTS

VERTICAL COMPONENT SLOPING COMPONENTS

all bracing fixed with swivel couplers

cross

brace

timber sole plate

under base plates

on soft or uneven

ground

transverse horizontal

member called a

putlog — fixed to

ledger with a putlog coupler

longitudinal horizontal

member called a

ledger — fixed to

standards with double

couplers

blade end standard

transom or putlog

vertical member

usually called a

standard spaced

at 1.800 to

2 .400 centres

depending on

load to be carried

transoms or

putlogs

facadebrace

Refs. BS EN 39: Loose steel tubes for tube and coupler scaffolds.

BS 1139-1.2: Metal scaffolding. Tubes. Specification for

aluminium tube.

Tubular Scaffolding