JPS6241857A - Stainless waterproof construction method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a waterproofing method for structures made of thin stainless steel plates.

[Conventional technology]

In recent years, stainless steel sheets have been used for waterproofing structures such as building roofs. There are various conventional stainless steel waterproofing methods using thin stainless steel plates, and the typical ones are shown in FIGS. 5 and 6. That is, a plurality of hangers 2 are fixed to the roof 1''2 of a building, and along these hangers 2, a thin stainless steel plate 6 with rising portions 4 formed on one side edge is laid, and the hangers 2 are After temporarily fixing the rising parts 4 by spot welding, the adjacent stainless steel thin plates 3 are laid, and the overlapping parts of the rising parts 4 of the adjacent stainless steel thin plates 6 are welded with a self-propelled seam welding machine 5, and from then on. .

The above operations are repeated to form a monolithic waterproof surface having a large area.

[Problem that the invention seeks to solve]

The conventional stainless steel waterproofing method involves many steps such as installing a large number of hangers, temporarily attaching the hangers to the thin stainless steel plates, and then joining the thin stainless steel plates together. The problem was that it was complicated and time-consuming.

In addition, sharp corners like knives are exposed upward at the upper ends of the standing parts of adjacent stainless steel thin plates, but in actual work sites, due to the convenience of work procedures, etc. Processing of rising parts 1 For example, folding and cap attachment are to be carried out after welding the rising parts at a plurality of places, so one worker had to work in a state where many sharp corners were exposed. For this reason, each worker has to perform the work while feeling in danger, reducing work efficiency, and there are also problems such as the sharp corners cutting the cord of the welding machine.

Furthermore, the thickness of the overlapping part between the thin stainless steel plates is larger in the part where the hanger is interposed than in other parts, so
When performing seam welding, welding conditions had to be finely adjusted, which was troublesome.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a stainless steel waterproofing method that solves these conventional problems and improves the work efficiency of workers at the site and ensures the safety of workers.

[Means for solving problems]

According to the present invention, in a stainless steel waterproofing method comprising laying a plurality of stainless steel thin plates on the outer surface of a structure and joining the side edges of adjacent stainless steel thin plates, each stainless steel thin plate is Forming a rising part on one side edge and folding back the rising part to form a fixing part to be anchored onto the structure, and forming a fixing part to be anchored onto the structure on the other side edge of the stainless steel thin plate. (2) A thin stainless steel plate that rises at the same height and has a substantially inverted U-shaped cross section, and the fixed part is fixed with an anchor. It is characterized in that it is covered and sandwiched by a portion, and the overlapping portion of the rising portion and the sandwiching portion is joined by welding.

[For production]

In the stainless steel waterproofing method according to the present invention as described above, there is no need for a hanger.

Sharp corners are prevented from being exposed in the -F direction.

Other objects, features and advantages of the invention will become apparent from the detailed description below, taken in conjunction with the accompanying drawings.

〔Example〕

1 and 2 of the drawings show an embodiment of the stainless steel waterproofing method according to the present invention. In the illustrated embodiment, the thin stainless steel sheet 1o is formed into a sheet by a roll forming machine or the like on site.
A bending process is performed on each of both side edges. A rising portion 11 is formed on one side line portion by bending the stainless steel thin plate 10 upward, and this rising portion 11 is further folded back approximately 180 degrees to form a raised portion 11 at its tip.

Fixing part 1 fixed to roof 1'' with anchor bolt 15
2 is formed. This rising portion 11 is tilted slightly outward so that it can perform an expansion function after one assembly. On the other side edge, a holding part 13 is formed which stands at the same height as the rising part 11 and whose upper end has a substantially inverted U-shape in cross section. This clamping portion 13 is also the same. Tilt outward.

After preparing the required number of stainless steel thin plates 10 having such a configuration, first prepare the first stainless steel thin plate 1.
0 at a predetermined position on the roof 1, and insert the anchor bolt 1 through the hole 14 formed in the fixing part 12 at one side edge.
Enter 5. In addition, this anchor fixed part is the 3rd and 4th
As clearly shown in the figure, the hole 14 is inserted into the stainless steel sheet 10.
It is preferable that the hole 14 be a long hole extending in the longitudinal direction, and that the anchor bolt 15 be driven into the hole 14 through a presser fitting 16 slidably attached to the hole 14. A kokichi is created that absorbs displacement in the longitudinal direction. Further, the spacing between the anchor bolts 15 is set so as to be able to withstand wind loads.

Next, a second stainless steel thin plate 10 is placed next to the first stainless steel thin plate 10.

At this time, the upper end of the adjacent rising portion 11 is covered with the clamping portion 1 of the second thin stainless steel plate 10.

By sandwiching them, an overlapping portion 17 is formed.

Furthermore, the fixing portion 12 of the second stainless steel thin plate 10 is fixed to the roof 1 with anchor bolts 15 in the same manner as described above.

The following work is carried out using a certain number of stainless steel thin plates (10 sheets).
After repeating this process, the overlapping portion 17 is sheet-welded using a self-propelled seam welding machine or the like. The rising portion 11 and the clamping portion 13 thus joined have a so-called expansion function due to their inclined portions, and can absorb displacement of the stainless steel thin plate 10 in the width direction.

From then on, Kokichi repeatedly performed two sets of work.

A monolithic waterproof surface is formed that covers the entire roof.

In addition, in the above process, seam welding is performed after assembling the plurality of thin stainless steel plates 10;
Of course, seam welding may be performed each time adjacent thin stainless steel plates 10 are assembled.

〔Effect of the invention〕

As described above, according to the present invention, the work of installing a large number of hangers and the work of temporarily fixing the hangers and stainless steel thin plates are unnecessary, and the work on site is simplified. Additionally, since the thickness of the overlapping portion of the stainless steel thin plates does not change, welding conditions remain constant.

Welding work becomes easier. Furthermore, in the past, it was sometimes difficult to install the thin stainless steel plate due to the misalignment of the hanger, but with this invention, the thin stainless steel plate is directly anchored without using the hanger, so such problems can be avoided. No worries.

Moreover, the fixing strength can be increased simply by adjusting the number of anchor bolts. Yet again.

The upper edge of the rising part of one side edge of the thin stainless steel plate is folded back, and in addition, this two-part edge is covered by the sandwiching part of the side edge of the adjacent thin stainless steel plate, so that sharp corners can be avoided. J is not exposed upward at all, allowing work to be carried out safely, greatly improving work efficiency, and having many benefits such as eliminating accidents such as welding cord cutting.

The rising part and the clamping part are joined by seam welding to ensure watertightness, but even if the seam welding is incomplete, the joint surface is covered by the clamping part, so watertightness is maintained.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view showing one embodiment of the stainless steel waterproofing method of the present invention, Fig. 2 is a sectional view of Fig. 1, Fig. 6 is a plan view of the anchor fixing part, and Fig. 4 is the same as Fig. 3. A cross-sectional view taken along the line A-A and FIG. 5.6 are partial perspective views showing the steps of a conventional stainless steel waterproofing method. In the figure, 1: roof, 2: hanger, 3, 10 stainless steel thin plates, 4, 11: rising section, 5: self-propelled seam welding machine, 12: fixed section, 13: clamping section. 14: Hole, 15: Anchor bolt, 16: Holding metal fitting, 1
7: Polymerization part. Figure 2

Claims (1)

[Claims] In the stainless steel waterproofing method, which consists of laying multiple stainless steel thin plates on the outer surface of a structure and joining the side edges of adjacent stainless steel thin plates, one side edge of each stainless steel thin plate is A rising portion is formed and the rising portion is folded back to form a fixing portion that is anchored to the structure, and the other side edge is provided with a portion that rises at approximately the same height as the rising portion and has an approximately inverted U-shaped cross section. A clamping part having a shape is formed, and the rising part of the thin stainless steel plate to which the fixing part is anchored is covered and sandwiched between the clamping part of the adjacent thin stainless steel plate, and the overlapping part of the rising part and the clamping part is A stainless steel waterproofing method characterized by joining by welding.