JP2016003487A - Folded-plate roof re-roofing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folded-plate roof re-roofing method which improves the work safety and enables the re-roofing of the folded-plate to be performed efficiently.SOLUTION: It is arranged to have a lifting holder 17, which can freely shift along the ridge direction in a region M where sectioned folded plates are re-roofed, and can freely move up and down. The lifting holder 17 comprises: a first engaging part 17d, which is formed at one end of the cover 17 aligned in the ridge direction, and to which one end of an existing sectioned folded plate 6C is engaged; and a second engaging part 17e, which is formed at the other end of the cover 17 aligned in the ridge direction, and to which one end of a newly-installing sectioned folded plate 6Cis engaged. Shifting the lifting holder up and down and in the ridge direction removes an existing sectioned folded plate and lays a newly-installing sectioned folded plate in the position where the aforementioned existing sectioned folded plate was. During the removal and laying time, the opening, which is created at the location where the aforementioned existing sectioned folded plate was lying, is kept closed by the cover 17 until the newly-installing sectioned folded plate is installed.

Description

  The present invention relates to a method for changing a folded plate roof in which a plurality of divided folded plates are laid in the row direction on a roof purlin that extends in the direction of the row while being spaced apart in parallel with the eaves direction.

FIG. 8 shows a building 2 with a gable roof 1. As the gable roof 1, a folded plate roof 5 shown in FIG. 9 is known.
The folded plate roof 5 of FIG. 9 has a plurality of chevron-shaped tight frames 4 on a plurality of metal (H-shaped steel) roof purlins 3A and 3B extending in the row direction while being spaced apart in parallel to the eave building direction. Is fixed. And the mountain part 5a and the trough part 5b are alternately formed in the crossing direction, and the metal folded-plate roof 5 laid over the roof purlins 3A and 3B is fixed and laid on the tight frame 4 with the sword tip bolt. Has been.

  As shown in FIG. 10, the folded plate roof 5 is composed of a plurality of divided folded plates 6A, 6B, 6C,. The split folded plate 6B is a member that is long in the eave building direction and short in the row direction so as to be spanned over the roof purlins 3A and 3B, and three crests 5a and two troughs 5b are alternately continuous. It is a bent metal plate. The other divided folded plates 6A and 6C are also formed in the same structure, and are fixed to the tight frame 4 in a state where the peak portions 5a of the divided folded plates 6A, 6B, 6C. Yes.

By the way, in the case of performing the above-described replacement work of the folded plate roof, for example, a method using the construction of the folded plate roof described in Patent Document 1 can be considered.
That is, when performing the replacement work of the plurality of divided folded plates 6A, 6B, 6C... Constituting the folded plate roof 5, the suspension is fixed at a plurality of positions above the existing divided folded plates 6A. A plurality of support columns are assembled on the roof steel frame around the divided folded plate 6A. Moreover, a suspended body is also fixed at a plurality of locations above the newly-installed folded folded plate.

  Then, a suspension wire is engaged between the suspended body on the existing divided folded plate 6A and the support column, and the existing divided folded plate 6A is lifted and moved to another roof position by the lifting and lowering operation of the suspended wire. Then, the hanging wire is engaged with the suspended body of the newly installed divided folded plate, and the newly installed divided folded plate is moved and laid to the position where the existing divided folded plate 6 is laid by the lifting and lowering operation of the hanging wire. Such an operation is repeated for the other existing divided folded plates 6B, 6C... And the new divided folded plates, so that the folded roof 5 is replaced.

JP-A 63-147048

However, the above-described conventional method for replacing the folded plate roof is that after the existing divided folded plates 6A, 6B, 6C... Are removed and replaced with the new divided folded plates 6A, 6B. , 6C ... has an opening (opening 7 opened in a part of the roof 1 shown in FIG. 8) at the position where the laying of the folded-plate roof is performed. There is a problem in terms of safety.
In addition, the conventional method of replacing the folded plate roof requires fixing a plurality of suspension bodies on the upper part of the existing and new divided folded plates, and repeatedly assembling the columns around the divided folded plates to be replaced. In addition, a lot of time was spent fixing the suspended body and disassembling and assembling the support column, and there was a problem in terms of work efficiency.
Then, this invention is made | formed paying attention to the unsolved subject of the said prior art example, and provides the replacement method of the folded-plate roof which can replace a folded-plate roof efficiently, improving work safety. The purpose is that.

  In order to achieve the above object, a method for replacing a folded-plate roof according to an aspect of the present invention is provided on a roof purlin that extends in a row direction while being spaced apart in parallel to the eaves direction, and is long in the eaves direction. In the method of replacing a folded plate roof in which a plurality of divided folded plates are arranged in a row direction and the folded plate roof is laid, and the existing divided folded plate is replaced with a new divided folded plate, the divided folded plate is placed on the folded plate roof. A hanging element that can be moved in the direction of the row of the area where the plate is changed over and that can be moved up and down is arranged, and the existing division is formed on the first engaging portion formed at one end of the direction of the hanging line of the hanging element. The end of a new split folded plate that is engaged with the end of the folded plate and laid in place of the existing split folded plate at the second engaging portion formed at the other end of the hanging member in the direction of travel And the existing split folded plate is removed by the upward movement of the suspension and the movement in the column direction. When the new divided folded plate is laid at the position where the existing divided folded plate was laid, the position where the existing divided folded plate was laid until the new divided folded plate was laid A method for replacing a folded-plate roof, comprising a closing step for closing an opening that is opened in step (b).

  Moreover, in the method of replacing a folded-plate roof according to one aspect of the present invention, the suspension includes a long base portion extending in the eaves-ridge direction, and the first portion is provided at one end portion in the row direction of the base portion. An engaging portion is formed, and the second engaging portion is formed at the other end portion of the base portion in the row direction, and the closing step is performed by moving the suspension member in the row direction. It is preferable that the newly installed split folded plate engaged with the is closed when the opening is closed.

Further, in the folded roof covering method according to one aspect of the present invention, the suspension includes a cover having a planar shape larger than the opening, and the first engagement is provided at one end of the cover in the row direction. The second engaging portion is formed at the other end portion of the cover in the row direction, and in the closing step, the cover moves the opening portion in the row direction. It is preferable when it is occluded.
Furthermore, by providing the cover with a hole extending in the direction of the crossing, the tight frame is fixed to the roof roof from above the cover through the hole when the opening is closed with the cover. When it is necessary to replace the tight frame, it is possible to replace the tight frame using the hole.

  According to the method of replacing a folded plate roof according to the present invention, the method includes a closing step of closing an opening that opens at a position where an existing divided folded plate is laid until a new divided folded plate is laid. Therefore, it is possible to efficiently change the folded-plate roof while improving work safety.

It is the schematic which shows the suspension apparatus installed in a roof, when performing the method of changing the folded-plate roof which concerns on this invention. It is a perspective view which shows the hanger which comprises a hanger, a raising / lowering transition, a column movement mechanism, etc. It is a figure which shows the operation | work in the middle of removing the existing division | segmentation folded plate using a suspension apparatus. It is a figure which shows the operation | work which lays a new division | segmentation folded plate using a suspension apparatus. It is a perspective view which shows the hanging element of another embodiment which comprises a hanging apparatus. It is a perspective view which shows the state which became possible [replacing | exchanging a tight frame using the hole part of a suspension apparatus]. It is a perspective view which shows the hanging element of another embodiment which comprises a hanging apparatus. It is the figure which showed that an opening part arises in a part of roof when performing the folding method of a folded-plate roof. It is the figure which showed the structure of the folded-plate roof. It is the figure which showed the folded-plate roof formed by connecting in multiple numbers the division | segmentation folded-plate which formed the peak part and the trough part alternately.

DESCRIPTION OF EMBODIMENTS Hereinafter, modes for carrying out the present invention (hereinafter referred to as embodiments) will be described in detail with reference to the drawings. The same components as those shown in FIGS. 6 to 8 are denoted by the same reference numerals, and the description thereof is omitted.
1 to 4 show an embodiment of a method for replacing a folded-plate roof according to the present invention.

As shown in FIG. 1, when performing the method for replacing a folded-plate roof according to the present embodiment, a suspension device 10 is installed on the folded-plate roof 5 so as to surround a folded-plate roof replacement area M.
As shown in FIGS. 1 and 2, the suspension device 10 includes two pairs of column members 11a and 11b that are erected from the top of the tight frame 4 of the roof purlins 3A and 3B so as to sandwich the replacement region M from the direction of the row. 12a, 12b, a first support wire 13 extending from the pair of column members 11a, 11b and extending in the column direction, and extending from the other pair of column members 12a, 12b to extend in the column direction The second support wire 14 and the first and second support wires 13, 14 can be raised and lowered via a raising / lowering mechanism 15, and are suspended so as to be movable in the column direction via a column moving mechanism 16. And a hanging member 17. The digit moving mechanism 16 includes a pair of pulleys 16a and 16b and a pulley connecting plate 16c connected between the pair of pulleys 16a and 16b, and the pair of pulleys 16a and 16b is the first support wire 13 or the first support wire 13. 2 It is wound around the support wire 14. The elevating mechanism 15 has a lifting wire 15a having an upper end coupled to the pulley 16a (or the pulley 16b) and a lower end coupled to the suspension 17, and a lever block (registered trademark) that performs the winding and unwinding operations of the lifting wire 15a. 15b.

The hanging element 17 has substantially the same shape as the divided folded plates 6A, 6B, 6C... Constituting the folded plate roof 5 in plan view (a member that is long in the eaves ridge direction and short in the row direction) and has a peak portion 17a and a valley portion. Covers 17c made of metal plates 17b are alternately formed, and both ends of the cover 17c in the short direction, and the ends of the existing split folded plates in the short direction can be engaged with each other. It is a member provided with the engaging parts 17d and 17e bent upwards so that the edge part of the short direction of a folded plate can also be engaged.
The lower end of the lifting wire 15a of the lifting mechanism 15 is fixed to the upper surface of the cover 17c of the lifting element 17 via a reinforcing member 18 extending and fixed in the short direction.

Next, the procedure of the method for replacing the folded-plate roof according to this embodiment will be described with reference to FIGS. 3 and 4, the tight frame 4 shown in FIG. 7 fixed on the roof purlin 3A is omitted. In FIG. 3, the split folded plate removed by re-rolling is an existing split folded plate 6C, and a new split folded plate newly laid at the position where the existing split folded plate 6C was laid is newly installed. The divided folded plate 6C _NEW .

First, the connection state of the existing divided folded plate 6C to be removed and the tight frame 4 by the connecting bolt is released. In addition, the temporary fixing means is given so that the existing divided folded plate 6C may not slide down from the roof purlins 3A and 3B.
Next, as shown to Fig.3 (a), the overlap of the edge part of the existing divided folded board 6C and the edge part of adjacent divided folded board 6B, 6D becomes the existing divided folded board 6C upper side. Swap as follows. That is, as shown in FIG. 9, since the end portion of the split folded plate 6B overlaps the end portion of the existing split folded plate 6C, as indicated by a circle indicated by reference numeral F in FIG. Then, the end of the existing divided folded plate 6C is replaced with the end of the already divided folded plate 6B.

Next, as shown in FIG.3 (b), the suspension element 17 of the suspension apparatus 10 becomes the height which does not contact the sword tip bolt (not shown) which protrudes from the peak part 17a of each divided folding plates 6A-6E. Next, after moving upward by the operation of the lifting mechanism 15, it is moved in the column direction toward the existing divided folded plate 6 </ b> C. Next, one engaging portion 17d of the hanging member 17 is engaged with one end portion in the short direction of the existing divided folded plate 6C.
Next, as shown in FIG. 3C, the other end in the short direction of the existing divided folded plate 6C is lifted with the assistance of an operator, and the existing divided folded plate 6C is held in a horizontal state. Then, the existing divided folded plate 6C and the hanging element 17 are moved in the direction of the arrow in the digit direction, the existing divided folded plate 6C is laid above the divided folded plate 6B, and the hanging element 17 is installed on the existing divided folded plate 6C. Position it above the position it was in. Thereby, an opening is generated between the divided folded plates 6B and 6 by removing the existing divided folded plate 6C, and the cover 17c of the hanging member 17 closes the opening.

Next, as shown in FIG. 4 (d), the other engaging portion 17e of the suspension 17 is engaged with one end portion in the short direction of the new divided folded plate 6C _NEW , and the new divided folded plate is engaged. lifting the other end of the plate 6C _NEW with the aid workers, holding the split folding plate 6C _NEW newly established in the horizontal state.
Next, as shown in FIG. 4 (e), the existing divided folded plate 6C, the suspension 17 and the new divided folded plate 6C _NEW are moved in the direction of the arrow in the spar, and the new divided folded plate 6C _NEW is installed. The split folded plate 6C is positioned above the position where the split folded plate 6C is laid, thereby closing the opening between the split folded plates 6B and 6D. Further, the peak portion at one end in the short direction of the new divided folded plate 6C _{NEW and} the peak portion at one end in the short direction of the divided folded plate 6D are overlapped (reference numeral G in FIG. 4 (e)). These are fixed to the tight frame 4. Further, the existing divided folded plate 6C that has been engaged with the hanging member 17 is removed to another position.

Next, as shown in FIG. 4 (f), the peak portion at the other end in the short direction of the new divided folded plate 6C _NEW that has been engaged with the other engaging portion 17e of the hanging member 17 is divided. A ridge at one end of the folded plate 6B in the short direction is overlapped with a crest at one end in the short direction of the folded plate 6B (the position indicated by a circle indicated by symbol H in FIG. 4 (f)). Is changed to a lower portion, and the overlapping of the ridge portions is changed so that the ridge portion of the other end portion in the short direction of the split folded plate 6C _NEW becomes the upper portion, and then these are fixed to the tight frame 4.

As described above, by performing the procedures of FIGS. 3A to 3C and FIGS. 4D to 4F, the existing divided folded plate 6C can be replaced with the new divided folded plate 6C _NEW . However, the work of replacing the other divided folded plates 6A, 6B, 6D, and 6E with the new divided folded plates is performed in the same procedure.
Here, the first engaging portion described in the present invention corresponds to the engaging portion 17d, and the second engaging portion described in the present invention corresponds to the engaging portion 17e.

Next, the effect of the method for changing the folded-plate roof according to this embodiment will be described.
According to the method for replacing the folded plate roof according to the present embodiment, when the folded plate roof is replaced, the existing divided folded plate 6C is opened by removing the existing divided folded plate, for example, the divided folded plate 6C. The opening between the split folded plates 6B and 6 is always closed by the cover 17c (the state shown in FIG. 3C) of the hanging member 17 and the new split folded plate 6C _NEW (the state shown in FIG. 4E). Therefore, sufficient work safety can be ensured.

Further, according to the present embodiment, the existing split folded plate (for example, the split folded plate 6C) is newly split only by moving the lifting element 17 of the lifting device 10 in the direction of the row of the switching area M and performing the lifting operation. Since it can be easily replaced with a folded plate (for example, divided folded plate 6C _NEW ), the operation of replacing the folded plate roof can be performed efficiently.
In addition, the cover 17 constituting the hanging element 17 of the present embodiment is a member that is lightened by bending a metal plate to alternately form the mountain parts 17a and the valley parts 17b. The movement in the column direction and the vertical movement can be performed with a small amount of labor, and the suspension device 10 can be easily assembled at a high position.

Here, FIG. 5 shows the hanging element 30 of the second embodiment of the hanging apparatus 10.
The suspension 30 according to the present embodiment has a suspension 30 shown in FIG. 2 in that the cover 30c extends in the direction of the line and has a hole 30e having substantially the same width as the roof purlins 3A and 3B. Is different. In FIG. 5, the same components as those in FIG.
In FIG. 5, two holes 30e are provided. These holes 30e are arranged when the cover 30c closes the opening (in FIG. 3 (c), the suspension 17 is placed on the suspension 30 in FIG. 5). In other words, the tight frames 4 on the roof purlins 3A and 3B can be seen from above the cover 30c. That is, in the opening closed by the cover 30c, the split folded plate 6C on the tight frame 4 has already been removed. Therefore, if the hole 30e is provided above the roof purlins 3A and 3C of the cover 30c. The tight frame 4 can be visually observed from above the hole 30e.

  When the tight frame 4 can no longer be used due to damage such as rust, the tight frame 4 needs to be replaced. In the present embodiment, when a cover having a cover 30c provided with a hole 30e extending in the direction of the beam is used as a suspension, and the opening is closed with the cover 30c, the roof is opened from above the cover 30c through the hole 30e. The tight frame 4 fixed on the purlins 3A and 3B is visually observed to determine whether the tight frame 4 needs to be replaced. If it is determined that replacement is required, the cover 30c is placed over the divided folded plates 6B and 6D as shown in FIG. In this state, the hole 30e is located above the tight frame 4 at the position indicated by a circle H in FIG. 6, so that the tight frame 4 is not covered with anything. Therefore, the damaged portion of the tight frame 4 is cut using the hole 30e, and a new tight frame is connected.

Thereafter, similarly to the above-described case shown in FIG. 4, the divided folded plate 6C _NEW is laid at the position where the divided folded plate 6C was laid.
According to the second embodiment described above, in addition to the effects of ensuring the safety of replacing the folded plate roof and the work efficiency, the safety of the confirmation and replacement of the tight frame 4 is confirmed. It is possible to carry out efficiently while ensuring sufficient.

Here, FIG. 7 shows the hanging element 20 of the third embodiment of the hanging apparatus 10.
The hanging element 20 of the present embodiment is formed on a long vertical substrate 21 extending in the eaves-ridge direction, a horizontal substrate 22 orthogonal to the lower portion of the vertical substrate 21, and both ends of the horizontal substrate 22 in the short direction. The end portions in the short direction of the existing divided folded plates can be engaged, and the end portions in the short direction of the new divided folded plates can also be engaged. It is a member provided with.

Here, the first engaging portion described in the present invention corresponds to the engaging portion 23a, and the second engaging portion described in the present invention corresponds to the engaging portion 23b.
When the folding plate roof is replaced using the hanging element 20 having the above-described configuration, the split folded plate 6B opened at the position where the existing split folded plate 6C is laid by removing the existing split folded plate 6C. Since the newly formed folded folded plate 6C _{NEW in} which the end portion in the short direction engages with the engaging portion 23b of the hanging member 20 is closed between the openings 6, work safety can be sufficiently ensured.
Further, since the hanging element 20 can be significantly reduced in weight, the hanging element 20 can be moved and moved up and down with less effort and the hanging device 10 can be assembled at a high position. Can be more easily performed.

3A, 3B ... Roof purlin, 4 ... Tight frame, 5 ... Folded plate roof, 5a ... Mountain, 5b ... Valley, 6A, 6B, 6C, 6D, 6E ... Divided folded plate, 6C _NEW ... New divided folded plate , 7 ... opening, 10 ... suspension device, 11a, 11b, 12a, 12b ... pillar member, 13 ... first support wire, 14 ... second support wire, 15 ... lifting mechanism, 15a ... lifting wire, 15b ... lever block (Registered trademark), 16 ... digit row moving mechanism, 16a, 16b ... pulley, 16c ... pulley connection plate, 17 ... suspension, 17a ... mountain part, 17b ... valley part, 17c ... cover, 17d, 17e ... engagement part, DESCRIPTION OF SYMBOLS 20 ... Hanging element, 21 ... Vertical board | substrate, 22 ... Horizontal board | substrate, 23a, 23b ... Engagement part, 30 ... Hanging element, 30c ... Cover, 30e ... Hole part

Claims (4)

On the roof purlin that extends in the row direction while being spaced apart in parallel to the eave building direction, a plurality of folded plates that are long in the eave building direction are arranged in the row direction, and the folded plate roof is laid. In the method of replacing the folded-plate roof, which replaces the plate with a new split folded plate,
Arranged on the folded plate roof is a hanging element that is movable in the direction of the row of the divided folded plate and that can be raised and lowered,
The end of the existing folded folded plate is engaged with the first engaging portion formed at one end of the hanging member in the row direction, and the second formed at the other end of the hanging member in the row direction. Engage the engaging portion with the end of a newly installed split folded plate that is laid in place of the existing split folded plate,
When the above-mentioned split folded plate is laid at the position where the existing split folded plate is laid, the existing split folded plate is removed by the upward movement of the suspension and the movement in the direction of the line,
A method for replacing a folded plate roof, comprising: a closing step of closing an opening that opens at a position where the existing divided folded plate is laid until the newly constructed folded folded plate is laid. The hanging element includes a long base portion extending in the eaves-ridge direction, the first engagement portion is formed at one end portion in the row direction of the base portion, and the other end portion in the row direction of the base portion. The second engagement portion is formed on
2. The folding according to claim 1, wherein the closing step is a time when a new divided folded plate engaged with the second engaging portion closes the opening by movement of the suspension member in the direction of the row. How to replace a flat roof. The suspension includes a cover having a larger planar shape than the opening, the first engaging portion is formed at one end of the cover in the row direction, and the other end of the cover in the row direction. The second engaging portion is formed;
The method for replacing a folded-plate roof according to claim 1, wherein the closing step is when the cover closes the opening by the movement of the suspension member in the direction of the row.   When the cover is provided with a hole extending in the direction of the beam and the opening is closed with the cover, the tight frame fixed to the roof purlin from above the cover through the hole is visually observed. 4. The method for replacing a folded-plate roof according to claim 3, wherein it is determined whether or not the tight frame needs to be replaced, and when the replacement is necessary, the tight frame is replaced using the hole. .

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