To build a roof body, with which a construction work space is covered, by using a regular building structure material, to cope with conveying-in of a material from the outside by an external lift, and to perform a building work without being influenced by weather.
A preceding frame 4 is precedingly built at a preceding construction area 3 and a rail body is arranged at the preceding frame 4. An opening closing roof 13 built in such a manner that a plurality of curing roofs are caused to span between the rain bodies is built between the preceding frame 4. The opening closing roof 13 is transferred, in order, to an upper story along with preceding construction of the preceding frames 4 to a given height. A structure in a subsequent construction area 2 is built under the opening closing roof 13 transferring to above.
UENO JUNICHI
YAMAMOTO YASUSHI
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