Centering scaffolding for renewal work in large structures such as bridges has profiles assemblable in module format and incorporating suspensions fixed to facade or long sides of structure

The centering scaffolding for renewal work in large structures such as bridges has profiles (1) assemblable in module format and incorporating suspensions (4,4') fixed to facades or long sides of the structure (3). Rib devices (5) or roller units (6) are insertable between the suspensions. On the rib devices a sub-structure (7) is arranged with a crane track (8) for the displaceable support of a lift platform (9). Between parallel rib devices on both sides of the structure work platforms (10) with accessible locations support on the rib devices and are transversally displaceable via roller units.