To remove the scaffold for a work quickly by supporting fixingly a stay member by a support member installed on the side surface lower part of the outer periphery flange of an upper panel.

After removing the nut 4 of a stud bolt 3 and a washer 5 from the stud bolt 3 and moving it on a nut receiving stand 13, an upper panel 1 is hung up. At this time, the length of a stay member 10 is adjusted by an adjuster 10a and also the tip of the stay member 10 is fixed to a support member 7 by a fixing bolt after extending the stay member 10. Under this state, the scaffold 8 for a work is fixed to an upper panel flange 1a surely by a guide member 6 and a support member 7. When the upper panel 1 is hung up a little by a crane, the scaffold 8 for the work is also hung up together and under this condition, a support leg 9 is folded in the periphery direction of the scaffold 8 for the work and stored.