| 摘要 |
PROBLEM TO BE SOLVED: To provide a prefabricated type stairway capable of preventing construction cost thereof from being increased and reducing construction term thereof.SOLUTION: In a prefabricated type stairway 30, a plurality of step members 8 each including a tread 4 horizontally arranged and a riser 6 arranged perpendicularly to a tread surface 4a of the tread 4 are arranged by being laid in the shape of stairway along an inclination direction, and the step members 8 of steps are fixedly juxtaposed in a staircase shape on a bar-like member 18 in the inclined direction on an inclined plane 7. The prefabricated type stairway 30 includes: a plurality of handrail support metal fittings 32 attached to the bar-like member 18; a plurality of posts 20 each with lower end in the lengthwise direction fixed to the handrail support metal fitting 32, thereby erected at a position on the end in the lengthwise direction of the step member 8; and a plurality of bar-shaped handrail beams 21 each with both ends in the lengthwise direction connected to upper ends in the lengthwise direction of adjacent two of the plurality of posts 20. |
