Touréchaf

19 TOURéCHAF T O U R é 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: Put a diagonal if the ledger exceeds 70 cm. 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. 1 2 3 4 1 2 1 2 3 4 1 2 3 4 3 4 > Bracing: Connecting the towers together and bracing them is very simple using our ledgers and diagonal braces. They avoid the tedious “tube and coupler” system. When the towers have a deck at the top. the bra- cing must be at least 1.00 m below the deck to prevent interferences with the diagonal braces. Temporary ledgers fitted during assembly Deck Same method as for a tower with 6 standards. 1.00