JPH0438267B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a method for constructing stairs.

(Prior art) When finishing the treads and risers of a staircase, finish marking is done on the wall surface as shown by dotted line a in Figures 4 and 5, and the riser is marked by a plasterer until it matches the finishing ink. A finishing base was constructed by applying mortar to the stair base concrete d in the order of b and tread c.

(Problems to be Solved by the Invention) However, in the conventional method, finishing marking of stairs requires highly accurate work by skilled workers, and the quality of the work is greatly influenced by the skill of the plasterer. In order to perform plastering work in a considerable number of days on the areas that are usually used for passageways,
It has a negative impact on work efficiency.

(Means for Solving the Problems) The present invention relates to a method for constructing stairs proposed to solve the above problems, in which ready-made girders are installed at predetermined positions on both sides of the concrete base of the stairs,
Next, both side edges of ready-made riser boards are fitted into the notches provided at the lower edges of each of the opposing girder girders, and a wedge is interposed between the riser board and the tread part of the base concrete. By holding the riser board at a predetermined level, then filling mortar between the riser board and the riser of the base concrete, and performing an erutal finish on the tread portion of the base concrete, This solves the above problems.

(Function) In the present invention, the girders and risers are manufactured in advance in a factory, etc., and the ready-made girders are carried to the site and the points of the top and bottom steps of the stairs are marked. At the same time, the girders are fixed to the wall surface, and then both edges of the ready-made riser boards are fitted into the notches provided at the lower edges of the pair of left and right girder girders, and the riser boards and the stair base concrete are fitted. The riser board is adjusted to a predetermined level by inserting a wedge between it and the tread part of the base concrete, and then mortar is placed in the gap between the riser board and the riser part of the base concrete. By filling, the riser board is fixed in a predetermined position, and mortar is cast on the tread part of the base concrete using the riser board and the girder as an outer formwork, and only the tread part is plastered. This is used to finish the stair mortar.

(Effects of the Invention) As described above, according to the present invention, by fabricating the girders and risers into panels in a factory, it is possible to significantly save labor in finishing marking and plastering of stairs. It is possible to improve construction accuracy and shorten the construction period without requiring skilled workers.

(Example) The present invention will be described below with reference to the illustrated embodiments.

1 and 2 are the girders and risers that were pre-fabricated in the factory, respectively, and the only markings on the stairs are point 3 on the top step and point 3 on the bottom step (not shown) as shown in Figure 1. The girder 1 is set in accordance with this point and adhered to the wall surface via the adhesive mortar 4.

Next, both ends of the riser board 2 are fitted into the notches 1a provided at the lower edges of the girders 1 facing each other on the left and right, and a wooden The wedge 6 is inserted to set the riser board 2 at a predetermined level, and in this state the riser board 2 is fixed to the riser part 5a with adhesive mortar 7 at a plurality of locations.

The next day, mortar 8 is filled between the riser board 2 and the riser part 5a, and only the mortar 9 on the tread part 5b of the base concrete 5 is plastered, completing the finishing of the stair treads and risers. .

Note that the wall 10 above the girder 1 is a baseboard with the surface of the girder 1 protruding from the surface of the wall 10, and an entry width where the surface of the wall 10 protrudes from the surface of the girder 1, using the girder 1 as a ruler. A joint part is provided at the boundary between the wood and the wall 10 and the girder 1, and a joint metal fitting is placed in the same part to create a joint parting.

In this way, according to the method of the above embodiment, the girder 1
By manufacturing panels and riser boards 2 in a factory and using them as the outer formwork for finishing the stairs with mortar, the finishing, marking and plastering of the stairs will be significantly deteriorated, and skilled workers will be required. This can improve construction accuracy and shorten the construction period.

[Brief explanation of drawings]

Fig. 1 is a slope view showing the implementation status of one embodiment of the staircase construction method according to the present invention, Fig. 2 is a vertical side view thereof, Fig. 3 is a side view of the girder, and Fig. 4 is a conventional construction method. FIG. 5 is a perspective view showing the implementation status of the method, and FIG. 5 is a longitudinal side view thereof. 1... Girder girder, 1a... Notch, 2... Riser board,
3... Points for marking out, 4... Adhesive mortar,
5... Stair base concrete, 5a... Risers,
5b...Tread portion, 6...Wedge, 7...Adhesive mortar, 8...Mortar, 9...Mortar.

Claims (1)

[Claims] 1. Install ready-made girder girders at specified positions on both sides of the stair base concrete, then fit both edges of ready-made riser boards into the notches provided at the lower edges of both opposing girder girders. A wedge is interposed between the board and the tread portion of the base concrete to hold the riser board at a predetermined level, and then mortar is filled between the riser board and the riser part of the base concrete. With,
A method for constructing stairs, characterized in that the treads of the base concrete are finished with mortar.