| 摘要 |
<p>PROBLEM TO BE SOLVED: To enhance the efficiency of construction by assembling a roof unit equipped with stiffeners at the bottom surface of a frame consisting of rafter members extended in the radial direction of the roof and ring members extended in the peripheral direction of the roof to the top of a sidewall. SOLUTION: A roof unit R having almost a fan shape in plan view is formed with rafter members 23, ring members 24 and roof members 21. And a truss- shaped stiffener 40 comprising a channel member 41 and a lattice member 42 is arranged in parallel and attached to a jointing rafter member 27 for the rafter member 23 of the unit R. In addition, supports 45 are attached at predetermined intervals to the bottom surface of the rafter members 23 and scaffold boards 46 are provided between the supports 45 and channel members 41, thereby providing temporary scaffolds 47. And at the time of construction work, a neighboring unit R is jointed through the rafter member 27 and the roof is constructed by jointing the central portion side and the outer peripheral side of the unit R to the sidewall of a ridge ring and a storage tank or the like respectively through joint brackets. In this way, the efficiency of construction can be enhanced.</p> |
