CONSTRUCTION METHOD OF ROOF FRAME

摘要

PROBLEM TO BE SOLVED: To provide a construction method of a roof frame preventing the danger and ill effect of a sudden change phenomenon. SOLUTION: A roof structural member constituting the roof frame is divided in a plurality of parts, and each joint part is connected by a hinge to assemble in an almost horizontally developed form on the ground level. One end part of the roof structural member is rotatably pin-connected to a pedestal on the ground, and the other end is connected to a tension ring on the inner peripheral side. The outer end part of the hinge forming an outside corner is provided with a resistor that demonstrates considerable rotational resistance when the hinge is developed close to 180 deg.. Rising force is applied to the tension ring part on the inner peripheral side of the roof structural member to raise the roof structural member, and each hinge in the roof structural member in the rising attitude is fixed.