| 摘要 |
PROBLEM TO BE SOLVED: To suppress opening of leg parts on both sides of a frame, when a supporting function of a temporary support post of the frame is released.SOLUTION: In a construction method for an arched frame 20 having frame leg parts 20L on both sides supported in a way that allows outward displacement, a central part 20M of the arched frame 20 is supported by a plurality of temporary support posts 50A, 50B during construction. The outward displacement of the arched frame 20 is restricted by applying tension on a tension member 40 that connects the frame leg parts 20L on both sides, when a support function of the plurality of temporary support posts 50A, 50B to support the arched frame 20 is released. This way, opening of the frame leg parts 20L on both sides is suppressed.SELECTED DRAWING: Figure 5 |
