CONSTRUCTING METHOD OF LARGE SPAN DOME ROOF

摘要

PURPOSE:To improve the workability and safety by assembling unit frames on both sides of a constructing tower on the ground, raising up the unit frames by wires, and lifting a frame material between adjacent unit frames by a cable crane. CONSTITUTION:Unit frames F are assembled on the ground successively from the side closer to constructing towers T, and raised up by hoisting devices 1 every completion of the assembling. Both ends situated on the outer circumference of a doom roof D are rotatably supported by anchors 3 on the ground, and a wire 4 is flatly erected between the middle part of the unit frame F and the hoisting device 1 of each constructing tower T in the direction orthogonal to the arrangement direction of the constructing tower T. The wire 4 is hoisted by the hoisting device 1, whereby, the unit frame F is successively raised up from the construction tower T side. A frame member 2 is lifted by a cable crane suspended between the constructing tower T and a cable tower.