Roof construction method

Abstract

To provide a roof construction method that improves the degree of freedom in construction of a roof constructed with folded roof plates.SOLUTION: A roof is constructed by using first folding plates and a second folding plate as roof folding plates. The first folding plates 20C and 20D have a male fitting portion 24 at an end of one slope, and a female fitting portion 25 at an end of the other slope. The second folding plate 30 has a first fitting portion 34 that can be fitted into the female fitting portion 25 at the end of the one slope, and a second fitting portion 35 that can be fitted into the male fitting portion 24 at the end of the other slope. The roof construction method has a preceding laying process and a subsequent laying process. In the preceding laying process, a preceding laying portion 11 where the first folding plate is laid is constructed with a space therebetween. In the subsequent laying process, the first folding plate 20C is laid so as to connect to one of the adjacent preceding laying portions 11 to construct a subsequent laying portion 12, and then the first folding plate 20C of the subsequent laying portion 12 is connected to the first folding plate 20D of the other preceding laying portion 11 with the second folding plate 30.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a roof construction method of laying roof folding plates to construct a roof.

Background Art

[0002] Conventionally, roofs constructed using roof folding plates have been known. Such roofs are constructed, for example, as described in Patent Document 1, by laying a plurality of roof folding plates side by side while repeatedly fitting the roof folding plates together.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the method of Patent Document 1, since it can only be constructed by simply pressing the roof folding plates in order from the end, the degree of freedom in roof construction is low.

Means for Solving the Problems

[0005] The roof construction method for solving the above problems constructs a roof by laying a roof folding plate having a bottom surface portion and a pair of inclined surface portions extending outward from both ends of the bottom surface portion. The roof folding plate includes a first folding plate having a male fitting portion at an end of one inclined surface portion and a female fitting portion at an end of the other inclined surface portion, and a first fitting portion capable of fitting into the female fitting portion at an end of one inclined surface portion and a second fitting portion capable of fitting into the male fitting portion at an end of the other inclined surface portion at an end of the other inclined surface portion. The roof construction method includes a prior laying step of arranging a plurality of prior laying portions formed by laying the first folding plate in parallel with a space therebetween, and after laying the first folding plate so as to be continuous with one of the prior laying portions adjacent to each other with a space therebetween to lay a subsequent laying portion, a subsequent laying step of connecting the subsequent laying portion and the other of the prior laying portions with the second folding plate.

Effect of the Invention

[0006] According to the present invention, the construction freedom degree of a roof constructed by a roof folding plate can be improved.

Brief Description of the Drawings

[0007]

Figure 1

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Figure 10

Figure 11

Figure 12

Figure 13

Modes for Carrying Out the Invention

[0008] (First Embodiment) With reference to FIGS. 1 to 6, the first embodiment of the roof construction method will be described. FIG. 1 is a top view schematically showing a roof. As shown in FIG. 1, the roof 10 is constructed by laying roof folding plates side by side in the short direction on a base material (not shown). In the present invention, the "roof folding plate" is a roof member produced by bending a metal plate. The roof folding plate is produced, for example, by extrusion molding using a roll forming machine installed on site. As the roof folding plates, a first folding plate 20 and a second folding plate 30 are used.

[0009] In the roof 10, the previously laid portions 11 and the subsequently laid portions 12 are alternately constructed, and the previously laid portions 11 and the subsequently laid portions 12 are connected by the second folding plate 30. The previously laid portions 11 are constructed by laying a plurality of first folding plates 20. The subsequently laid portions 12 are provided between the previously laid portions 11. The subsequently laid portions 12 are constructed by laying a plurality of first folding plates 20. The previously laid portions 11 are constructed prior to the subsequently laid portions 12. After the construction of the previously laid portions 11, the construction area of the subsequently laid portions 12, that is, the space between the previously laid portions 11, is utilized as the travel route (moving space and working space) of various heavy machines such as crawler cranes. For example, when the construction area of the subsequently laid portions 12 is utilized as the travel route of a crawler crane, the span between the previously laid portions 11 is preferably 11 m or more. The subsequently laid portions 12 are constructed after the work using various heavy machines is completed.

[0010] (First folding plate) As shown in Fig. 2(a), the first folding plate 20 as a roof folding plate has a flat bottom portion 21, an inclined portion 22 extending outward from one end of the bottom portion 21 so as to expand, an inclined portion 23 extending outward from the other end of the bottom portion 21 so as to expand, a convex male fitting portion 24 provided at the end of the inclined portion 22, and a concave female fitting portion 25 provided at the end of the inclined portion 23. The female fitting portion 25 is configured to be fitted to the male fitting portion 24 of another first folding plate 20.

[0011] Fig. 2(b) is a diagram for explaining the fitting of the first folding plates 20 to each other. As shown in Fig. 2(b), the female fitting portion 25 of one first folding plate 20A is configured to be fitted to the male fitting portion 24 of the other first folding plate 20B. Further, the fitting portion between the male fitting portion 24 and the female fitting portion 25 may be covered with a cap (not shown).

[0012] (Second folding plate) As shown in Fig. 3(a), the second folded plate 30 as the roof folded plate has a flat bottom surface portion 31, an inclined surface portion 32 extending outward from one end portion of the bottom surface portion 31, an inclined surface portion 33 extending outward from the other end portion of the bottom surface portion 31, a first fitting portion 34 provided at the end portion of the inclined surface portion 32, and a second fitting portion 35 provided at the end portion of the inclined surface portion 33. As shown in Fig. 3(b), the second fitting portion 35 is a concave fitting portion configured to be fitted into the male fitting portion 24 of the first folded plate 20. As shown in Fig. 3(c), the first fitting portion 34 is a concave fitting portion configured to be fitted into the female fitting portion 25 of the first folded plate 20. By having such fitting portions, the second folded plate 30 can connect a pair of the first folded plates 20. Note that the fitting portions between the first fitting portion 34 and the male fitting portion 24, and between the second fitting portion 35 and the female fitting portion 25 may be covered with a cap (not shown) or the like.

[0013] Also, as shown in Fig. 3(a), the second folded plate 30 has construction error absorption portions 36 and 37 between the inclined surface portions 32 and 33 and the fitting portions 34 and 35, respectively. The construction error absorption portions 36 and 37 extend downward and outward between the inclined surface portions 32 and 33 and the fitting portions 34 and 35. When the second folded plate 30 is laid side by side between a pair of the first folded plates 20, construction errors are absorbed by elastic deformation in which the angles formed by the inclined surface portions 32 and 33 and the construction error absorption portions 36 and 37 change.

[0014] (Roof construction method) Referring to Figs. 4 to 6, a first embodiment of the roof construction method will be described. In the roof construction method, first, a preliminary laying step is performed. As shown in Fig. 4, in the preliminary laying step, a plurality of preliminary laying portions 11 are constructed with a space 40 left. Each preliminary laying portion 11 is constructed by repeatedly fitting the male fitting portion 24 (see Fig. 2(b)) of one first folded plate 20 and the female fitting portion 25 of the other first folded plate 20 to lay a plurality of the first folded plates 20 side by side. The space 40 with a predetermined span formed between adjacent preliminary laying portions 11 can be used, for example, as a traffic line for various heavy machines (not shown).

[0015] After the preliminary laying process, a subsequent laying process is performed. In the subsequent laying process, after constructing the subsequent laying portion 12 by laying the first folding plate 20 so as to be continuous with one of the adjacent preliminary laying portions 11 with a space 40 left therebetween, the subsequent laying portion 12 and the other preliminary laying portion 11 are connected by a second folding plate 30 (see FIG. 3). Specifically, in the subsequent laying process, as shown in FIG. 5, in the space 40, the first folding plate 20C is repeatedly laid so as to be continuous with one of the adjacent preliminary laying portions 11 (the left side in the figure) to construct the subsequent laying portion 12. The first folding plate 20C is repeatedly laid until it reaches a position where the subsequent laying portion 12 and the other preliminary laying portion 11 (the right side in the figure) can be connected by the second folding plate 30 (see FIG. 3).

[0016] Then, as shown in FIG. 6, the first folding plate 20C of the subsequent laying portion 12 and the first folding plate 20D of the other preliminary laying portion 11 are connected by the second folding plate 30. Specifically, the first fitting portion 34 of the second folding plate 30 is fitted into the female fitting portion 25 of the first folding plate 20D of the preliminary laying portion 11, and the second fitting portion 35 of the second folding plate 30 is fitted into the male fitting portion 24 of the first folding plate 20C of the subsequent laying portion 12. At this time, since the second folding plate 30 has construction error absorbing portions 36, 37, even if a construction error occurs in the laying positions of the first folding plate 20C of the subsequent laying portion 12 and the first folding plate 20D of the preliminary laying portion 11, the construction error is absorbed by the construction error absorbing portions 36, 37. By connecting the preliminary laying portion 11 and the subsequent laying portion 12 in this way, the roof 10 shown in FIG. 1 can be constructed.

[0017] (Operation of the First Embodiment) In the roof 10, the preliminary laying portion 11 made of the first folding plate 20 is constructed first so that the space 40 is formed. These preliminary laying portions 11 are connected via the subsequent laying portion 12 composed of a plurality of first folding plates 20 and the second folding plate 30.

[0018] The effects of the first embodiment will be described. (1-1) In the roof construction method of the roof 10, a plurality of previously laid parts 11 are constructed in advance with a space 40 left. Then, a subsequently laid part 12 that connects the previously laid parts 11 adjacent to each other is constructed. As a result, the construction freedom degree of the roof 10 is improved.

[0019] Also, the space 40 between the previously laid parts 11 can be utilized as the moving route of various heavy machines. Furthermore, since it is possible to suppress rain from pouring directly below the previously laid parts 11, work can be carried out even in rainy weather directly below the previously laid parts 11. In this way, by improving the construction freedom degree of the roof 10, the construction freedom degree of the building can also be improved. As a result, the construction period can be shortened.

[0020] (1-2) The second folding plate 30 has a first fitting part 34 at the end of the inclined surface part 32 that can be fitted into the female fitting part 25 of the first folding plate 20, and a second fitting part 35 at the end of the inclined surface part 33 that can be fitted into the male fitting part 24 of the first folding plate 20. Thereby, as shown in FIG. 6, the first folding plate 20D of the previously laid part 11 and the first folding plate 20C of the subsequently laid part 12 can be connected by the second folding plate 30. That is, since only one type of folding plate having a shape different from that of the first folding plate 20 is required, the number of molds for manufacturing the second folding plate 30 and the like is reduced. As a result, the effects described in (1-1) can be realized at low cost.

[0021] (1-3) The second folding plate 30 is provided with construction error absorption margins 36, 37. Thereby, even if a construction error occurs during the laying of the first folding plate 20, the roof 10 can be constructed without being affected by the construction error.

[0022] (Second Embodiment) Referring to FIGS. 7 to 9, a second embodiment of the roof construction method will be described. The roof construction method of the second embodiment is the same as the roof construction method of the first embodiment described above, except that a third folding plate is used in addition to the second folding plate in the subsequent laying process. Therefore, in the second embodiment, parts different from those of the first embodiment will be described in detail, and parts the same as those of the first embodiment will be given the same reference numerals and their detailed description will be omitted.

[0023] In the second embodiment, in order to connect the later-laid portion 12 and the previously-laid portion 11, in addition to the second folding plate 30, a third folding plate is used. As shown in FIG. 7, the third folding plate 50 has a flat bottom surface portion 51, an inclined surface portion 52 extending so as to expand outward from one end of the bottom surface portion 51, an inclined surface portion 53 extending so as to expand outward from the other end of the bottom surface portion 51, and convex third fitting portions 54, 55 provided at the ends of the inclined surface portions 52, 53.

[0024] Each of the third fitting portions 54, 55 has the same cross-sectional shape as the male fitting portion 24 of the first folding plate 20. That is, each of the third fitting portions 54, 55 is formed so as to be capable of fitting with the female fitting portion 25 of the first folding plate 20 and the fitting portions 34, 35 of the second folding plate 30.

[0025] Further, the third folding plate 50 has construction error absorption portions 56, 57 between the inclined surface portions 52, 53 and the fitting portions 54, 55. Each of the construction error absorption portions 56, 57 extends downward and outward between the inclined surface portions 52, 53 and the fitting portions 54, 55.

[0026] Referring to FIGS. 8 and 9, an example of the later-laid construction process in the roof construction method of the second embodiment will be described. In the later-laid construction process, after connecting the third folding plate 50 to the other side of the previously-laid portion 11, the later-laid portion 12 and one side of the previously-laid portion 11 are connected by the second folding plate 30.

[0027] Specifically, as shown in FIG. 8, the third folding plate 50 is laid by fitting the third fitting portion 54 of the third folding plate 50 to the female fitting portion 25 of the first folding plate 20D of the other previously-laid portion 11.

[0028] Next, as shown in FIG. 9, the second folding plate 30 is used to connect between the first folding plate 20C and the third folding plate 50 of the later-laid portion 12. Specifically, the first fitting portion 34 of the second folding plate 30 is fitted to the third fitting portion 55 of the third folding plate 50, and the second fitting portion 35 of the second folding plate 30 is fitted to the male fitting portion 24 of the first folding plate 20C. Thereby, the previously-laid portion 11 is connected via the later-laid portion 12, the second folding plate 30, and the third folding plate 50. At this time, the construction errors are absorbed by the construction error absorption portions 36, 37 of the second folding plate 30 and the construction error absorption portions 56, 57 of the third folding plate 50.

[0029] (Operation of the Second Embodiment) On the roof, the previously-laid portions 11 constructed using a plurality of first folding plates 20 are constructed in advance with a predetermined span therebetween. These previously-laid portions 11 are connected by the later-laid portion 12, the second folding plate 30, and the third folding plate 50.

[0030] The effects of the second embodiment will be described. According to the roof construction method of the second embodiment, in addition to the effects described in (1-1) described in the first embodiment, the effects described below can be obtained.

[0031] (2-1) Construction error absorption portions are provided in each of the second folding plate 30 and the third folding plate 50. Thereby, the influence of construction errors can be further reduced, and the roof can be effectively constructed.

[0032] The first and second embodiments can be implemented with the following modifications. The first and second embodiments and the following modification examples can be implemented in combination with each other within a technically non-conflicting range.

[0033] · As shown in FIG. 10, the roof 10 may have a heat-insulating double-fold plate structure having an upper chord member 61, a lower chord member 62, and a heat-insulating layer 63 located between the lower chord member 62 and the upper chord member 61. The heat-insulating layer 63 is provided so as to cover the lower chord member 62 from above. The upper chord member 61 is provided so as to cover the heat-insulating layer 63 from above. The heat-insulating layer 63 may be a heat-insulating material such as glass wool, for example. The upper chord member 61 and the lower chord member 62 may each be composed of a first-fold plate 20 and a second-fold plate 30, or may be composed of a first-fold plate 20, a second-fold plate 30, and a third-fold plate 50. FIG. 10 shows a case where each of the upper chord member 61 and the lower chord member 62 is constructed by the first-fold plate 20 and the second-fold plate 30.

[0034] In such a configuration, in each of the prior laying process and the subsequent laying process, after constructing the lower chord member 62, the heat-insulating layer 63 and the upper chord member 61 are constructed. Specifically, as shown in FIG. 11, in the prior laying process, for the portion corresponding to the prior laying portion 11, the lower chord member 62 is constructed by the first-fold plate 20E. Also, after the lower chord member 62 is constructed, the heat-insulating layer 63 and the upper chord member 61 are constructed. At this time, the upper chord member 61 of the portion corresponding to the prior laying portion 11 is constructed by the first-fold plate 20F. In the portion of the prior laying portion 11 facing the space 40, it is preferably covered with a waterproof sheet until the construction of the subsequent laying portion 12 is started. Thereby, the intrusion of rainwater into the heat-insulating layer 63 can be prevented.

[0035] As shown in FIG. 12, in the subsequent laying process, the lower chord member 62 of the portion corresponding to the subsequent laying portion 12 is constructed by the first-fold plate 20G. Thereafter, for the lower chord member 62, the first-fold plate 20E of the other prior laying portion 11 and the first-fold plate 20G of the subsequent laying portion 12 are connected by the second-fold plate 30. Thereby, the lower chord member 62 is constructed.

[0036] As shown in FIG. 13, when the lower chord member 62 is constructed, the remaining heat insulation layer 63 and the upper chord member 61 are constructed. At this time, the upper chord member 61 in the portion corresponding to the later-laid portion 12 is constructed by the first folded plate 20H. Then, when the heat insulation layer 63 is constructed, for the upper chord member 61, the first folded plate 20F of the other previously-laid portion 11 and the first folded plate 20H of the later-laid portion 12 are connected by the second folded plate 30.

[0037] In this way, by constructing the lower chord member 62 in advance in each of the previously-laid process and the later-laid process, the lower chord member 62 can be used as a scaffold when constructing the heat insulation layer 63 and the upper chord member 61.

[0038] · In the above embodiment, as shown in FIG. 4, in each of the previously-laid portions 11, a plurality of the first folded plates 20 are laid side by side in a specific direction. However, the direction in which the first folded plates 20 are arranged is not limited.

[0039] · The second folded plate 30 has two construction error absorption portions 36, 37. However, the present invention is not limited to this. The second folded plate 30 may not have a construction error absorption portion, or may have one construction error absorption portion. Further, the error absorption portions 36, 37 may be any that can absorb construction errors by elastic deformation, and for example, may have a cross-sectional bellows shape.

[0040] · The third folded plate 50 has two construction error absorption portions 56, 57. However, the present invention is not limited to this. The third folded plate 50 may not have a construction error absorption portion, or may have one construction error absorption portion. Further, the error absorption portions 56, 57 may be any that can absorb construction errors by elastic deformation, and for example, may have a cross-sectional bellows shape.

Explanation of Reference Numerals

[0041] 10…Roof, 11…Pre-laid part, 12…Post-laid part, 20…First folding plate, 21…Bottom surface part, 22, 23…Slant surface parts, 24…Male fitting part, 25…Female fitting part, 30…Second folding plate, 31…Bottom surface part, 32, 33…Slant surface parts, 34…First fitting part, 35…Second fitting part, 36, 37…Construction error absorption allowance, 40…Space, 50…Third folding plate, 51…Bottom surface part, 52, 53…Slant surface parts, 54, 55…Third fitting parts, 56…Construction error absorption allowance, 57…Construction error absorption allowance, 61…Upper chord member, 62…Lower chord member, 63…Heat insulation layer.

Claims

1. A roof construction method for constructing a roof by laying a roof folding plate having a bottom surface portion and a pair of inclined surface portions that extend outward from both ends of the bottom surface portion, wherein the roof folding plate includes a first folding plate having a male fitting portion at an end of one inclined surface portion and a female fitting portion at an end of the other inclined surface portion, and a second folding plate having a first fitting portion capable of fitting into the female fitting portion at an end of one inclined surface portion and a second fitting portion capable of fitting into the male fitting portion at an end of the other inclined surface portion, and the roof construction method includes a first laying step of arranging a plurality of previously laid portions formed by laying the first folding plate in parallel with a space therebetween, and a subsequent laying step of laying the first folding plate so as to be continuous with one of the previously laid portions adjacent to each other with a space therebetween to form a subsequent laid portion, and then connecting the subsequent laid portion and the other of the previously laid portions with the second folding plate Roof construction method.

2. The second folding plate has a construction error absorbing allowance for absorbing construction errors caused by the laying of the first folding plate The roof construction method according to claim 1.

3. The roof folding plate further includes a third folding plate, the third folding plate has a third fitting portion capable of fitting into the male fitting portion or the female fitting portion at an end of one inclined surface portion and an end of the other inclined surface portion, and in the subsequent laying step, the second folding plate and the third folding plate are used to connect the other of the previously laid portions and the subsequent laid portion The roof construction method according to claim 1.

4. The third folding plate has a construction error absorbing allowance for absorbing construction errors caused by the laying of the first folding plate The roof construction method according to claim 3.

5. The roof has a lower chord member constructed by the roof folding plate, a heat insulating layer provided so as to cover the lower chord member from above, and an upper chord member constructed by the roof folding plate and provided so as to cover the heat insulating layer from above, and has a heat insulating double folding plate structure, and the roof construction method includes in each of the first laying step and the subsequent laying step, after constructing the lower chord member, constructing the heat insulating layer and the upper chord member The roof construction method according to any one of claims 1 to 4.

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