| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a staircase constructing method such that construction work can be performed efficiently on-site and the installed position of a staircase is not limited by the structure of a building. SOLUTION: An opening 11 is provided through the floor panel 1 of a third story, and a staircase-equipped floor panel A such that a staircase 2 is mounted in the opening 11 in such a way as to become coplanar with the floor panel 1 is shop fabricated. At a construction site, the building unit B of the second story is laid on top of the building unit C of the first story, and after the staircase-equipped floor panel A is installed on the building unit B of the second story, the staircase 2 is rotated downward using the upper end of the staircase 2 as the rotation axis, to join the lower end of the staircase 2 with the upper landing B4 of the building unit B of the second story.</p> |
