JP2913270B2 - Repair method of folded plate roof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of repairing a folded-plate roof using a corrugated metal sheet.

[0002]

When a folded-plate roof widely used in factories, warehouses and the like is deteriorated and repaired, the following two methods are conventionally used.

[0003] The first method is to remove an existing folded-plate roof and newly roof the folded-plate roof. in this way,
Once the roof is removed, the factory inside the building cannot be used during construction. In addition, there is a cost for removing the roof and a disposal cost for waste materials such as the roof shingles.

[0004] A second method is to build a short pillar on an existing girder, install a purlin on the roof, and then lay a new folded-plate roof on this. In this way, new short pillars and purlins
Since it is a structural member, its structural calculation is required, and the purlin is also expensive. Furthermore, in order to build a short column, welding work or the like inside the building is required, which limits the use of an internal factory or the like.

Therefore, the present invention solves the above disadvantages,
It can be carried out while using factories inside the building,
The purpose of the present invention is to obtain a refurbishment method that can be implemented at low cost and easily.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a method for repairing an existing folded-plate roof in which bolts and nuts protrude from hills. Remove the part or leave it as it is, perform rust removal processing that enables welding of all or part of the nut, prepare an elongated member having a plurality of holes, and loosen this hole with the bolt and nut. Fitted, placed on a washer around the nut, welded around the hole and the rust-removed nut to fix the elongated member.Further, on this elongated member, a new mounting bracket was newly mounted. This is a method for repairing a folded-plate roof, which comprises attaching a new folded-plate roof material to the mounting bracket and roofing the new folded-plate roof.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.

[0008] As shown in FIG.
A mounting bracket 12 is mounted on a purlin 11 made of H-shaped steel, and a metal folded plate roofing material 13 is placed thereon. Bolts 14,... Having sharp tips are provided on the ridges of the mounting bracket 12, and the folded plate 13 is pressed therethrough, the bolts 14,.
The folded plate roofing material 13 is fixed by tightening with a nut 17 (see FIG. 4). This configuration is widely used.

In the repair method of the present invention, first, as shown in FIG. 2, the tips of the bolts 14,... Are removed. In the illustrated embodiment, all bolts 14,... Are removed. Any tool such as a sander and a cutter can be used for this removal.

Next, the nuts 17,... Are rust-removed to enable welding. In the illustrated embodiment, this processing is performed for all nuts 17,. An arbitrary tool such as a wire brush can be used for this process. In particular, if a sander is used, bolt removal and rust removal can be performed simultaneously.

Next, as shown in FIG. 2, an elongated member 18 is prepared, in which a plurality of holes 19,... Are formed.
The holes 19 are set in size and spacing so that the bolts 14,..., Nuts 17,. As shown in FIGS.
, Nuts 17,... Are fitted, and the elongated member 18 is placed on a washer 16 around the lower portion of the nut 17,
Holes 19, nuts 17 that have been rusted around
That is, in this embodiment, all the nuts are welded 20, and the elongated member 18 is fixed.

The elongated member 18 is made of flat steel as shown in the figure. However, if the elongated member 18 can be formed with a hole and welded and has a strength enough to withstand the use described later, it may be a shape steel or the like.
It can be formed using any material. Hole 19, ...
Are large enough to allow the nuts 17,... To be loosely fitted, that is, even if the existing folded-plate roof 10 is distorted, and the holes 19,.
.. Are placed on the washer 16 and are set small enough to enable welding with the nut. The length of the elongated member 18 is arbitrary, but about 1 to 2 meters is convenient for handling, and if it is such a length, all the holes 19,. Can easily be fitted to the ten nuts 17,. When fixed, the portion between adjacent elongated members 18 may be welded to increase rigidity or may be left as it is.

The elongated member 18 fixed in this way is used as a new purlin, as shown in FIG. 5, on which a mounting bracket 21 is newly mounted, and a new folded plate roof material 22 is mounted on the mounting bracket 21. To form a new folded plate roof 23,
Finish renovation of folded roof.

In this embodiment, a new mounting bracket 2 is used.
1. The folded plate roofing material 22 is of a type in which the folded plate roofing material 22 is pressed into the mounting bracket 21 and fixed, but even if it has the same configuration as the existing folded plate roofing 10,
Alternatively, it goes without saying that another configuration may be used.

As can be seen from the above description, the reason why the tip of the bolt is removed in the present invention is to prevent it from hindering the installation of a new mounting bracket on the elongated member.
Therefore, if all the bolt tips are removed as in the above embodiment, the position and the like can be freely selected when a new mounting bracket is mounted, which is convenient. But,
If the mounting position and dimensions of the new mounting bracket are determined, only the tip of the bolt that hinders the mounting is removed, so that the amount of work can be reduced. In particular, if a new mounting bracket having the same pitch as the existing mounting bracket is used, it is possible to completely eliminate the removal of the bolt tip.

In the above embodiment, all the nuts are rust-removed and all the nuts are welded to fix the elongated member. However, if there is enough strength, only some of the nuts are rust-removed. Alternatively, welding may be performed.

[0017]

As described above, the renovation method of the present invention forms a new folded plate roof while leaving the existing folded plate roof as it is.
Cost savings, simple, fast and low cost. In addition, since the renovation work is all performed on the existing folded-plate roof, the building can be used as usual during the renovation work. The new weight added to the building by this renovation method,
Since only a slender member and a new folded plate roof are used, the structure is lightweight, so that a separate structural calculation or the like is not required and can be easily performed. Furthermore, when this renovation method is implemented, the roof becomes a double roof, so that the heat insulation and the sound insulation are improved, and the roof becomes more comfortable.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an existing folded plate roof before a repair method of the present invention is performed.

FIG. 2 is a perspective view showing a state in which the repair method of the present invention is carried out, a bolt tip is removed, rust removing processing is performed, and an elongated member is prepared.

FIG. 3 is a perspective view showing a state in which an elongated member is fixed.

FIG. 4 is an enlarged sectional view of a hole portion in the preceding figure.

FIG. 5 is a perspective view showing a state in which the repair method of the present invention has been implemented and completed.

[Explanation of symbols]

10: Existing folded-plate roof, 11: Purlin, 12: Mounting bracket,
13: folded roof material, 14: bolt, 15: packing, 1
6 ... washer, 17 ... nut, 18 ... elongated member, 19 ... hole,
Reference numeral 20: welding, 21: mounting bracket, 22: folded roof material, 2
3… Folded roof.

Claims (1)

(57) [Claims] 1. A method of repairing an existing folded-plate roof in which bolts and nuts protrude from a mountain portion, wherein a tip portion of all or a part of the bolt is removed or removed as necessary. Rust removal processing that enables welding of all or part of the nut is performed, an elongated member having a plurality of holes is prepared, and the holes are loosely fitted to the bolts and the nuts. Then, the elongated member is fixed by welding the perimeter of the hole and the rust-removed nut, and a new mounting bracket is mounted on the elongated member. A method for repairing a folded plate roof, which comprises installing a folded sheet roof material and roofing a new folded plate roof.