JPH07103648B2 - How to form a waterproof floor - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for forming a waterproof floor that must be waterproofed on the roof of a building.

“Prior Art” Conventionally, a floor to be waterproofed is formed by embedding a waterproof sheet made of rubber or a synthetic resin material in the floor body or by laying and fixing it on the upper surface of the floor body.

However, since this tarpaulin is made of rubber or synthetic resin, it does not have the durability to withstand the useful life of the building, and it is necessary to replace the tarpaulin several times during the useful life of the building. However, there is a drawback that the work is troublesome and expensive.

"Object of the Invention" In view of the above-mentioned conventional drawbacks, the present invention is to obtain a method for forming a waterproof floor that can reliably prevent water leakage even after long-term use and is easy to construct. .

"Means for achieving the object of the present invention" The present invention relates to a floor main body forming step of forming a floor main body having a side wall having at least one end protruding upward, and an upper surface and a side wall of the floor main body after the floor main body forming step. A metal sheet laying step of laying a plurality of metal sheets each having a connection portion formed by bending one side surface into a U-shape on the inner wall surface of the side wall, and the side wall and the floor after the metal sheet laying step. A connection part bending process that bends the overlapped connection part of the connection corner with the main body inward by about 90 degrees, and a seam welding process that seam welds and fixes the overlapped connection part waterproofly after this connection part bending process. A surface layer forming step of forming a surface layer of mortar or the like on the upper surface of the metal sheet that covers the upper surface of the floor body and the inner wall surface of the side wall in a waterproof manner through the seam welding step. It is set to.

"Examples of the Present Invention" Hereinafter, the present invention will be described in detail with reference to the examples shown in the drawings.

In the embodiment shown in FIGS. 1 to 8, reference numeral 1 denotes a floor main body which forms a floor main body 4 having side walls 3 and 3 with both ends protruding upward on the roof of a building 2 such as a building as shown in FIG. In the forming step, the floor body 4 formed in the floor body forming step 1 is formed of a concrete layer 6 in which reinforcing bars 5 are embedded.

Metal 7 is laid after the floor body forming step 1 as shown in FIG. 3 so that a plurality of metal sheets 8 are laid so that the side surfaces thereof overlap so as to cover the upper surface of the floor body 4 and the inner wall surfaces of the side walls 3 and 3. In the sheet laying step, the metal sheet 8 used in the metal sheet laying step 7 is formed into a strip-shaped thin plate by using a weldable metal material such as stainless steel, copper titanium or alloys thereof as shown in FIG. The metal sheet main body 9 is formed, and the connecting portion 10 is formed by bending one side surface of the metal sheet main body 9 into a U shape.

After the metal sheet laying step 7, 11 indicates the connecting portion 12 where the connecting corners of the side wall 3 and the floor body 4 are overlapped with each other.
As shown in FIG. 6 and FIG. 6, in the connecting portion bending step of bending inward by approximately 90 degrees, the connecting portion bending step 11 includes the base portion 10a of the connecting portion 10 of the metal sheet 8 of the connecting portion 12 where the connecting corners are overlapped. By bending inwardly by about 90 degrees around the center, it is possible to keep the connection portion 12 where the connection corners are overlapped with each other without wrinkles.

Reference numeral 13 is a seam welding step in which the connection portions of the metal sheets 8, 8 which have been overlapped after the connection portion bending step 11 can be waterproofed by seam welding as shown in FIG. In the part bending step 11, the connection part 12 at the corner part is bent inward by about 90 degrees, so that the connection can be continuously performed without difficulty.

The seam welding process 13 is performed on all of the metal sheets 8 laid on the floor body 4 to form the waterproof sheet 14.

15 is a waterproof sheet formed by the seam welding step 13
As shown in FIG. 8, a surface layer 16 is formed on the upper part of 14 by using a surface material such as mortar and concrete.
Is a surface layer forming step of covering the upper end portion of the side wall 3 and the upper end portion of the surface layer 16 with the cover material 19 while forming the above.

The waterproof floor 17 thus constructed is a waterproof sheet.
With 14, it is possible to reliably prevent water from leaking into the floor body 4.

It should be noted that water leakage can be prevented without using the cover material 19 by forming the side wall 3 having the upper end bent inward.

"Different Embodiments of the Present Invention" Next, different embodiments of the present invention shown in FIGS. 9 to 12 will be described. In the description of this embodiment, the same components as those of the embodiment of the present invention are designated by the same reference numerals, and the duplicated description will be omitted.

9 to 12 is different from the embodiment of the present invention mainly in that the metal sheet laying step 7 is performed before the concrete layer 6 after the floor body forming step 1 is cured and the metal sheet is laid. The waterproof floor 17A is constructed and formed in this manner in that the waterproof sheet 14A is formed by using 8A as shown in FIG. 10 in which a plurality of locking projections 18 are formed on the metal sheet main body 9. As a result, the floor body 4, the waterproof sheet 14A and the surface layer 16 become more integrated.

"Effects of the Present Invention" As is clear from the above description, the present invention has the effects listed below.

(1) A floor main body forming step of forming a floor main body having a side wall with at least one end protruding upward, and folding one side into a U shape on the upper surface of the floor main body and the inner wall surface of the side wall after the floor main body forming step. A metal sheet laying step of laying a plurality of metal sheets each having a bent connection portion so that the side surface portions are overlapped, and a connection portion where the connection corners of the side wall and the floor body are overlapped after the metal sheet laying step Is bent to approximately 90 degrees inward, a seam welding process for waterproofly seam-welding the connection parts that are overlapped after this connection-region bending process, and the upper surface of the floor body through this seam-welding process And a surface layer forming step of forming a surface layer such as mortar on the upper surface of the metal sheet that covers the inner wall surface of the side wall in a waterproof manner. Even the position being a corner portion can be continuously sheet welding. Therefore, since the waterproof sheet can be formed by efficiently seam-welding a plurality of metal sheets, the waterproof floor can be easily constructed and formed.

(2) According to the above (1), since seam welding can be continuously performed even if there is a corner portion, the connection portion where the metal sheets are overlapped can be reliably welded and fixed in a waterproof manner. Therefore, it is possible to reliably prevent water leakage.

(3) According to the above (1), since it is not necessary to use a special processing machine for constructing the waterproof floor, it can be performed inexpensively and easily even by an unskilled person.

[Brief description of drawings]

FIG. 1 is a process diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of a floor main body, FIG. 3 is an explanatory diagram of a state in which a metal sheet is laid, and FIG. 4 is an explanatory diagram of a metal sheet. 5 and 6 are explanatory views of a state in which the connection portions where the connection corners are overlapped are bent, FIG. 7 is an explanatory view of a state where seam welding is performed, FIG. 8 is an explanatory view of a surface layer, and FIGS. FIG. 12 is an explanatory view showing a different embodiment of the present invention. 1: Floor body forming process, 2: Building, 3: Side wall, 4: Floor body, 5: Reinforcing bar, 6: Concrete layer, 7: Metal sheet laying process, 8, 8A: Metal sheet, 9: Metal sheet body, 10 : Connection part, 11: Connection part bending process, 12: Connection part, 13: Seam welding process, 14, 14A: Waterproof sheet, 15: Surface layer forming process, 16: Surface layer, 17, 17A: Waterproof floor, 18: Locking protrusion.

Claims (1)

[Claims] 1. A floor main body forming step of forming a floor main body having a side wall having at least one end protruding upward, and a U-shaped one side surface on an upper surface of the floor main body and an inner wall surface of the side wall after the floor main body forming step. A metal sheet laying step of laying a plurality of metal sheets each having a bent connection portion formed on each other so that the side surface portions are overlapped, and after the metal sheet laying step, the connection corners of the side wall and the floor body are overlapped. Almost the connection site
The connection part bending step of bending inward by 90 degrees, the seam welding step of seam welding and fixing the connection parts overlapped after this connection part bending step in a waterproof manner, and the upper surface and side wall of the floor body through this seam welding step And a surface layer forming step of forming a surface layer of mortar or the like on the upper surface of the metal sheet that covers the inner wall surface of the metal sheet in a waterproof manner.