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19

TOURECHAF

T O U R E C H A F : S H O R I N G T O W E R W I T H I N T E G R A L S A F E T Y S Y S T E M

A tower can be extended using

frames and standards, for example:

> Rows:

> Blocks:

- Continuous rows

- Row with extensions

Interconnected towers

- Row with bracing between towers

or

>Towers with extension:

In practice, not more than 4

standards should be added

per frame at each level and

these must be wind braced.

0.15 m ledgers are not

suitable for extensions.

> Bracing:

Connecting the towers together and bracing them is very sim-

ple using our ledgers and diagonal braces which avoid the pro-

blems of “tube and coupler” systems.

When the towers have a deck at the top, the bracing must be

at least 1.00 m below the deck to prevent interference with

the diagonal braces.

Temporary ledgers fitted

during assembly

Deck

Standard

Same method as for a tower with 6 standards.