The total height of scaffolds is 75.75 meters, with double standing tube double pole scaffolding at a lower height of about 46.8meters,

which are total about 26 spans; use single standing tubes double pole scaffolding at the higher height of about 28.8 meter, which are

total about 16 spans.

Material: steel tubular scaffolding with couplers, 48*35mm steel tubes; scaffolding decks or sacffolding planks, dense mesh and safety

nets.

The actual erection parameters

Spans: 1.8 meters

Vertical space between standing tubes: 1.343meters

Transverse space between standing tubes: 1.2 meters

Standing tubes:

Horizontal tubes: vertical horizontal tubes set inside the standing tubes with a length no smaller than 3 spans; vertical horizontal tubes

shall be fixed with putlog couplers and the couplers shall be crossing placed. Vertical tie members: use 48*3.5mm steel tubes as the tie

members and their setting area shall be no bigger than two lifts and three spans. The tie members shall be set from the first level of the

scaffolding frame to the horizontal tubes. The tie members shall be set according to the concrete positions and locations.