Installation method for bare roof

Abstract

To provide a bare roof construction method which can be applied even to a building on a narrow site, does not place a burden on roofing materials such as tiles, and enables even unskilled workers to efficiently perform construction work.SOLUTION: A construction method of a bare roof 100 includes a step of producing a stepped scaffolding 4 on the gable side of a building H, a step of producing a rail portion 31 along the flat side of the building H, a step of producing a partial bare roof 2 forming a part of the bare roof 100 on the stepped scaffolding 4 and fixing it to a movable member 31d arranged on the rail portion 31, a step of attaching a folded plate 25 to the partial bare roof 2, and a step of moving the partial bare roof 2 in the ridge extending direction of the building H by a movable member 31d.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a method for constructing a roof covering a building for repairing the roof or the like. [Background technology]

[0002] 2. Description of the Related Art In a conventional method for constructing a roof covering for a building, a support member for the roof covering is placed on the roof.

[0003] Furthermore, Patent Document 1 discloses a large-scale bare roof for covering buildings such as temples, shrines, and Buddhist temples. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2005-132557 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, as described above, when a support member for supporting a tent roof is installed on a roof, even if a plate material is interposed between the support member and the roof tile, a large load is placed on the roof tile, and there is a risk of damaging the roof tile that has been re-roofed with great care. In addition, the installation of such a tent roof requires the work of assembling single pipes from scratch on the roof, which has the drawback that inexperienced workers cannot perform the work efficiently. On the other hand, a large tent roof such as that in Patent Document 1 does not place a load on roof materials such as tiles, but since the pre-assembled tent roof is installed on the roof with a large crane, it is a construction method that is not suitable for buildings such as shrines and temples located on small sites.

[0006] To provide a method for constructing a temporary roof that can be applied to a building located on a small site, does not put a strain on roofing materials such as tiles, and allows even an unskilled worker to efficiently carry out the construction work, in consideration of the above circumstances. [Means for solving the problem]

[0007] The method for constructing a temporary roof of the present invention is a method for constructing a temporary roof to cover the roof of a building, comprising the steps of: A step of constructing scaffolding on at least the gable side of the building; Producing a rail portion along a flat side of the building; a step of preparing a partial roof sheet constituting a part of the roof sheet on the scaffold and fixing the partial roof sheet to a movable member disposed on the rail portion; attaching roof panels to the partial roof; a step of moving the partial roof element in a ridge extension direction of the building by the movable member; The present invention is characterized by comprising:

[0008] According to the above construction method, a partial roof sheet that will become part of the roof sheet is fabricated on the gable side scaffolding, and this partial roof sheet is moved in the ridge extension direction of the building using the rail section, so that the roof sheet that covers the roof of the building can be assembled. This reduces the amount of work on the building roof, and even non-experts can easily assemble the roof sheet. Furthermore, if the partial roof sheet can be fabricated on the gable side scaffolding as described above, it is only necessary to transport the roof sheet materials to the gable side scaffolding, so that a relatively small crane positioned on the gable side can be used, making it easy to apply to buildings located on small sites. Furthermore, since the roof sheet is supported by the rail section, excessive strain on the roof material when the support member is installed on the roof can be prevented.

[0009] The partial roof may be formed three-dimensionally by a plurality of truss members having a specified dimension and a spacer that connects the truss members arranged in parallel to each other while maintaining the space between them. This allows the work to be carried out more efficiently than a construction method in which a worker assembles single pipes from scratch to create a roof. Furthermore, when the partial roof has a three-dimensional truss structure, it can be moved stably on the rail section.

[0010] In the above-mentioned sheet roof construction method, the length of the movable members may be longer than the width of the partial sheet roofs in the ridge extension direction, and the partial sheet roofs may be spaced apart from each other on the roof by a predetermined distance while the movable members are in contact with each other. This makes it possible to avoid an increase in materials and an increase in the weight burden on the rail portion due to an increase in the number of partial sheet roofs when the partial sheet roofs are placed closely next to each other on the roof. Moreover, the predetermined distance between the partial sheet roofs can be easily ensured by making the movable members a predetermined length. Effect of the Invention

[0011] The present invention can be applied to buildings located on small sites, and has the effect of not putting a strain on roof materials such as tiles, and allowing construction work to be carried out efficiently even by unskilled workers. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1A is a front view of a sheet roof produced by the construction method of the embodiment, and FIG. 1B is a side view of the same. [Diagram 2] FIG. 1A is a rear view of a sheet roof produced by the construction method of the embodiment, and FIG. 1B is a side view of the same. [Diagram 3] FIG. 2 is a perspective view of a roof template produced by the construction method of the embodiment. [Figure 4] FIG. 4 is an enlarged explanatory view showing a construction method according to the embodiment. [Diagram 5] 14A and 14B are plan views of the truss members, and 14C is a perspective view of the ridge fitting. [Figure 6] FIG. 4 is an explanatory diagram of a rail portion used in the construction method of the embodiment. [Figure 7] FIG. 2 is an explanatory diagram showing a construction method according to an embodiment. [Figure 8] FIG. 2 is an explanatory diagram showing a construction method according to an embodiment. [Figure 9] FIG. 2 is an explanatory diagram showing a construction method according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. 1, 2 and 3, a sheet roof 100 produced by the construction method of the embodiment comprises a sheet roof body 1 covering a roof H1 of a building H shown by a two-dot chain line, and supporting structures 3 located on each flat side of the building H to support the sheet roof body 1. On the gable side of the building H, a stepped scaffolding 4 is produced in which a number of flat sections 4a of different heights are arranged in steps.

[0014] The above-mentioned basic roof body 1 comprises, for example, a plurality (three in this example) of mountain-shaped partial basic roofs 2 extending along both sides of the roof H1, located between the gables of the building. In other words, the partial basic roofs 2 correspond to the basic roof body 1 divided into a plurality of parts in the ridge extension direction of the building H. In this embodiment, the partial basic roofs 2 are adjacent to each other at a fixed distance.

[0015] 4, the partial roof element 2 is three-dimensionally fabricated using a plurality of truss members (plane trusses) 21 having specified dimensions, spacing members 22 that maintain the spacing between the truss members 21 arranged in parallel to one another and connect the truss members 21 together, and ridge fittings 23 that connect the truss members 21 on the top side of each stream to one another. The truss members 21 and spacing members 22 are fabricated using, for example, lightweight metal pipe material. The width of the spacing members 22 is set to, for example, 1800 mm, so that the width of the partial roof element 2 in the ridge extension direction is 1800 mm.

[0016] The truss member 21 has a structure in which, for example, an upper chord member 21a, a lower chord member 21b, and a plurality of diagonal members 21c arranged between them are fixed to each other by welding. As the truss member 21, for example, as shown in Fig. 5(A) and Fig. 5(B), several types of different dimensions are prepared, and by combining these, it is possible to accommodate roofs of different sizes. Flanges 21d with bolt insertion holes are fixed to both ends of the upper chord member 21a and the lower chord member 21b by welding. The truss members 21 are connected to each other by placing the flanges 21d facing each other and passing bolts and nuts through the insertion holes formed in the flanges 21d. The lower chord member 21b is located above and away from the roof H1.

[0017] In addition, the purlin supports 21e are fixed to the upper chord members 21a at predetermined intervals by welding. The purlins 24 are fixed to the purlin supports 21e with bolts or the like. The folded plate roof is fabricated by fixing the folded plate roof 25, which is a roof plate, onto the purlins 24 with nuts or the like.

[0018] The spacing holder 22 has a substantially rectangular frame shape, and connecting fittings 22a are fixed by welding or the like to both ends of the upper horizontal bar portion and both ends of the lower horizontal bar portion of the spacing holder 22. The spacing holder 22 maintains the distance between the truss members 21 arranged parallel to one another, and the connecting fittings 22a connect the truss members 21 to one another, thereby obtaining the partial element roof 2 having a three-dimensional truss structure. A single-pipe fixing clamp can be used as the connecting fittings 22a.

[0019] As shown in Figure 5 (C), the ridge fitting 23 has flange portions 23a facing diagonally downward at both horizontal positions, and each flange portion 23a is connected to a flange 21d of the uppermost truss member 21 on each flow side by bolts and nuts.

[0020] The support structure 3 is composed of a rail section 31 and a scaffold section 32, or only the rail section 31, which are aligned along the extension direction of the eaves on the flat side of the building H. The scaffold section 32 may be a general work scaffold, but in this embodiment, it is fabricated using the support section 31a of the rail section 31. The starting end of the rail section 31 is located on the end side of the stepped scaffold 4.

[0021] As shown in Fig. 6, the rail section 31 includes a plurality of support columns 31a arranged at a predetermined interval on the ground, a short receiving section 31b fixed to the upper end of the support columns 31a by welding or the like, a long channel steel section 31c (e.g., 3600 mm) supported by the receiving section 31b, a movable member 31d with a concave cross section and an opening side facing downward and movably provided in the recess of the channel steel section 31c, a roller 31e located in the recess of the movable member 31d and supported by an axis provided on the movable member 31d, and a truss connecting section 31f provided on the movable member 31d. The support columns 31a are made of a single pipe or the like used for work scaffolding. As shown in the figure, a single pipe 320 may be connected to the support columns 31a to prevent buckling. The length of the movable member 31d is, for example, 3600 mm, which is approximately twice the width (1800 mm) of the partial element roof 2 in the ridge extension direction.

[0022] A substantially U-shaped fixed piece 301 is welded to the receiving portion 31b from its lower portion to both sides in a vertical arrangement. This fixed piece 301 and left and right fixed pieces 302 welded to both sides of the channel steel portion 31c are made to face each other and fixed to each other by bolts and nuts 300, whereby the long channel steel portion 31c is fastened and fixed to the short receiving portion 31b, thereby producing a rail-like structural portion.

[0023] The truss connecting portion 31f is inclined at an angle corresponding to the inclined arrangement of the truss member 21. The rollers 31e are arranged at a plurality of locations including both ends of the movable member 31d.

[0024] As shown in Figure 2, if there is an obstacle building H2 on the flat side that hinders the construction of the rail section 31, an H-shaped steel 310 can be spanned over the obstacle building H2 and supported by a support column 311 arranged in the vicinity of the obstacle building H2, and the recess formed by the flanges on both sides of the H-shaped steel 310 and the web at the bottom can be used as a travel path.

[0025] The stepped scaffolding 4 has several flat sections 4a of different heights arranged in a stepped pattern, with the flat sections 4a closer to the ridge of the roof H1 being higher. Workers can be positioned separately on the flat sections 4a of different heights. The height of the flat section 4a located at the end of the stepped scaffolding 4 (the flat side end of the building H) is set to a height that allows a worker to connect the lower chord 21b of the partial roof 2 to the truss connecting section 31f on this flat section 4a.

[0026] In constructing the sheet roof 100, first, the stepped scaffolding 4 and the supporting structure 3 are prepared by typical scaffolding construction work, as shown in Fig. 7. Next, a worker prepares the partial sheet roof 2 on the stepped scaffolding 4, and fixes the lower chord member 21b of this partial sheet roof 2 to the truss connector 31f of the movable member 31d arranged on the rail section 31. In other words, the worker prepares, on the stepped scaffolding 4, the partial sheet roof 2 in a three-dimensional shape (box shape) that can be moved by the rail section 31.

[0027] In the above process, for example, the entire partial roof 2 may be fabricated using the stepped scaffolding 4, and the entire partial roof 2 may be lifted using a manual chain block or a jack, and then the lower chords 21b of the truss members 21 at both ends of the lowest part may be fixed to the truss connection portions 31f of the rail portions 31.

[0028] Alternatively, the lower chord 21b of the lowest truss member 21 may be fixed to the truss connecting portion 31f of the rail portion 31, the spacing members 22 may be connected to this truss member 21 to form a three-dimensional structure, and the truss members 21 and spacing members 22 may be further connected upward to produce the entire partial sheet roof 2. In this method of assembling the partial sheet roof 2 from the rail portion 31 side, for example, in order to maintain the position of the lowest truss member 21, this truss member 21 may be temporarily supported by a single pipe that serves as a support rod.

[0029] 8, the worker bolts a purlin (with a tight frame) 24 made of channel steel to the purlin support 21e of the upper chord member 21a of the partial sheet roof 2, and fastens a folded plate 25 with nuts onto the tight frame of the purlin 24. The folded plate 25 may be attached before or after the partial sheet roof 2 is fixed to the truss connecting portion 31f of the movable member 31d.

[0030] Next, as shown in Fig. 9, the worker uses a jack or the like to push the partial roof sheet 2 in the ridge extension direction of the building H (the opposite gable side where the stepped scaffolding 4 is not present) and moves this partial roof sheet 2 above the roof H1. By moving this partial roof sheet 2 as described above, the stepped scaffolding 4 becomes free, and the second partial roof sheet 2 is fabricated on this stepped scaffolding 4. Once the second partial roof sheet 2 has been fabricated, in the same manner as above, the second partial roof sheet 2 is pushed using a jack or the like in the ridge extension direction and the second partial roof sheet 2 is moved above the roof H1.

[0031] If the length of the movable member 31d is set to approximately twice the length (3600 mm) of the width (1800 mm) of the partial roof element 2 in the ridge extension direction, with the movable members 31d adjacent to each other and in contact with each other, the partial roof elements 2 will be spaced apart from each other on the roof H1 at a distance equal to the width of the partial roof element 2. The worker connects the adjacent partial roof elements 2 to each other using a rod-shaped member such as a single pipe.

[0032] Similarly, the third partial roof sheet 2 is prepared on the vacant stepped scaffolding 4, and this third partial roof sheet 2 is pushed in the direction of extension of the eaves to move the third partial roof sheet 2 above the roof H1. The worker also connects the second partial roof sheet 2 and the third partial roof sheet 2 using a rod-shaped member such as a single pipe. In this way, the roof sheet 100 is prepared. The roof sheet 100 can be dismantled by following the steps described above in reverse.

[0033] According to this method of constructing a sheet roof, the work is mainly carried out on the stepped scaffolding 4 on the gable side, reducing the amount of work on the roof H1 of the building H, so that even an unskilled person can easily construct the sheet roof 100. Furthermore, if the partial sheet roof 2 can be constructed on the stepped scaffolding 4 on the gable side as described above, then it is sufficient to transport the materials for the sheet roof 100 onto the stepped scaffolding 4, so a relatively small crane positioned on the gable side can be used, making it easy to apply to buildings on small sites. Furthermore, because the sheet roof 100 is supported by the rail section 31, excessive strain on the roof material as in the conventional method of installing support members on the roof can be prevented.

[0034] The partial roof element 2 is made using a plurality of truss members 21 having specified dimensions and spacing retainers 22 that maintain the spacing between the truss members 21 arranged parallel to each other and connect the truss members 21, so that the partial roof element 2 can be easily and quickly made on the stepped scaffolding 4 using bolts, etc.

[0035] In addition, the movable member 31d makes it easy to maintain a predetermined distance between the partial roof elements 2 on the roof, thereby avoiding an increase in materials required and an increase in the weight burden on the rail portion 31 that would occur if the partial roof elements 2 were placed closely adjacent to each other on the roof.

[0036] Although the embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to the illustrated embodiment. Various modifications and variations can be made to the illustrated embodiment within the same scope as the present invention or within an equivalent scope. [Explanation of symbols]

[0037] 1: Roof base 2: Partial roof 3: Support structure 4: Stepped scaffolding (gable side scaffolding) 4a: Flat part 21: Truss member 21a: Upper chord material 21b: Lower chord 21c: diagonal 21d: Flange 21e: Main building support 22: Spacing body 22a: Connecting fittings 23: Ridge fittings 23a: Flange part 24: Main house 25: Folded plate 31: Rail section 31a: Support section 31b: Receiving part 31c: Channel steel section 31d: Movable member 31e: Roller 31f: Truss joint 32: Scaffolding 100: Bare roof 300: Nut 301: Fixed piece 302: Fixed piece 310:H-beam steel 311: Support section 320: Single pipe H:Building H1: Roof H2: Obstacle building

Claims

1. A method for constructing a roof covering a building, comprising the steps of: A step of constructing scaffolding on at least the gable side of the building; Producing a rail portion along a flat side of the building; a step of preparing a partial roof sheet constituting a part of the roof sheet on the scaffold and fixing the partial roof sheet to a movable member disposed on the rail portion; attaching roof panels to the partial roof; a step of moving the partial roof element in a ridge extension direction of the building by the movable member; Including, A method of constructing a roof framework, characterized in that the length of the movable member is made longer than the width of the partial roof framework in the ridge extension direction, and the partial roof frameworks are spaced apart from each other at a predetermined distance on the roof while the movable members are in contact with each other.

2. 2. The method of constructing a roof framework as described in claim 1, wherein the partial roof framework is formed three-dimensionally by a plurality of truss members having specified dimensions and a spacing retainer which maintains the spacing between the truss members arranged parallel to each other and connects the truss members to each other.

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