| 摘要 |
PURPOSE: To improve finishing of stairs and construction precision by a methods wherein complete girder and a rise plate are brought into a panel through manufacture at a factory and utilized as outer forms for stair mortar finishing. CONSTITUTION: Girder 1 premanufactured at a factory are adhered on a wall surface by adhesion mortar. The two ends of a prefabricated rise plate 2 are fitted in respective notch parts 1a formed in the lower edge of the complete girder 1. A wedge 6 is driven in a space between the rise plate 2 and a rise part 5a of stair substrate concrete 5 to set the rise plate 2 in a given level. With this state, the rise plate 2 is fixed in a plurality of spots at the rise part 5a by adhesion mortar 7. At a following day, a space between the rise plate 2 and the rise part 5a is filled with mortar 8 god plastering finishing is applied only on mortar 9 on a tread part 5b of substrate concrete 5 for completion. |
