CONSTRUCTION METHOD FOR STRIKING STEEL ARC

PROBLEM TO BE SOLVED: To provide a construction method for striking a steel arc, for facilitating the work when striking the steel arc between steel cells.SOLUTION: In this construction method, the steel cells 1 having a cylindrical shape and provided with cell side connection members at the predetermined outer periphery positions are placed across the predetermined interval, next the steel arc 2 is placed between the steel cells while cut faces C are formed on a circular arc-like rib member 23 provided on the inner periphery face of the steel arc 2 in the circumferential direction when placing the steel arc 2 having arc side connection members guided onto the cell side connection members in the vertical direction and engageable with them in both side edges and having circular arc-shaped cross section between the steel cells while both of the connection members are mutually engaged, and then the cut faces C of the circular arc-like rib members 23 are mutually joined with a joint member.