| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a suspension staircase lightweight, to shorten the execution period and to reduce the execution cost. SOLUTION: PC steel products 3a, 3a..., 4a, 4a..., 3n, 3n..., 4n, 4n... of the lower floor are connected in sequence to a plurality of inside and outside PC steel products 3, 3..., 4, 4... anchored in two lines at the prescribed interval to a girder 1 protruded from the roof floor of a building main body and are suspended to the lowermost floor. Staircases 5, 5a..., 5n of individual floors are supported and connected to the PC steel products 3, 3..., 4, 4..., 3a, 3a..., 4a, 4a..., 3n, 3n..., 4n, 4n... in sequence from the upper floor to the lower floor, and the staircase load is borne by the PC steel products 3, 3..., 4, 4..., 3a, 3a..., 4a, 4a..., 3n, 3n..., 4n, 4n....</p> |
