| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a staircase which can be easily and inexpensively installed with a high degree of freedom by a sufficient supporting structure, for example, when the staircase communicating with a roof floor is post-installed from a veranda of an existing building with the unused roof floor. <P>SOLUTION: This staircase 10, which is post-installed in the existing building constructed on the basis of common standard dimensions, is characterized as follows: a landing 15 is connected to an upper section of a straight staircase 13; a staircase diagonal-supporting member 11 of a straight staircase section is provided with a column-base fixing means 16 for being fixed to a column base 24 mounted on an existing beam 23; a landing diagonal-supporting member 14 is provided with a cantilever-beam fixing means 17 for being fixed to a cantilever beam 26 mounted on an existing column 25; the plurality of column-base fixing means 16 and/or the plurality of cantilever-beam fixing means 17 are provided in the direction of the staircase; and horizontal intervals between all the column-base fixing means and all the cantilever-beam fixing means are each set at an integral multiple of the common standard dimension. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
