Patent ID: 7676925

Claim:
A lifting construction method of a boiler module, in which the boiler module is lifted from the ground by suspending rods in a plurality of lifting jacks provided on a steel frame large beam and made to accommodate an install construction to the large beam, said lifting construction method of the boiler module comprising: suspending the boiler module by disposing the lifting jacks, which are enabled to move laterally on the large beam, at a position forward and a position backward of the boiler module; and lifting and installing the suspended module to the large beam while changing a suspending position between a position preventing an interference with existing modules and a prescribed suspending position by laterally moving the forward and backward lifting jacks alternately with a short stroke defined to limit an inclination range of the suspending rods of the lifting jacks; wherein the forward and backward lifting jacks are moved laterally in alternating stepwise movement with a constant pitch by using short stroke lateral traveling jacks; wherein a spacer is arranged between the forward and backward lifting jacks to keep a minimum spacing between jacks in a lateral traveling direction.