JP7088766B2 - Roof unit transportation metal fittings and roof construction method - Google Patents

Description

The present invention relates to a metal fitting for transporting a roof unit and a roof construction method.

Some buildings such as houses are constructed by the unit construction method (unit building). In this unit construction method, a building (unit building) can be constructed in a short period of time by transporting a building unit or a roof unit manufactured in advance at a factory to a construction site and assembling at the construction site.

In such a unit building, it is important to efficiently transport the building unit constituting the building body and the roof unit constituting the roof to the construction site in order to shorten the construction period and reduce the cost.

The conventional means of transportation for roof units is to transport the large roof unit and the small roof unit together by truck with the roof unit with a small width inserted inside the roof unit with a large width. It exists (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2010-255257

However, the means of transportation described in Patent Document 1 must have a sufficient size difference between the large roof unit and the small roof unit so that the small roof unit can be inserted inside the large roof unit. However, there was a problem that it could not be applied to roof units whose sizes were not so different.

Therefore, the present invention mainly aims to solve the above-mentioned problems.

In order to solve the above problems, the present invention has the first roof panel in the first roof unit in which the first roof panel is mounted on the hut assembly portion and the whole is formed into a substantially triangular shape in a side view. It has a unit-side mounting bracket that can be mounted on the roof and a panel-side mounting bracket that has the same width dimension as the first roof panel and can be mounted on the second roof panel constituting the second roof unit. However, the panel-side mounting bracket and the unit-side mounting bracket are overlapped in parallel with the positions of the water upper end of the first roof panel and the end of the second roof panel aligned. It features roof unit transportation fittings that are connected to each other .

According to the present invention, according to the above configuration, the roof unit transport metal fitting may be composed of a unit side mounting metal fitting and a panel side mounting metal fitting. As a result, the first roof panel and the second roof panel, which are not so different in size, can be reliably connected and integrated with a simple configuration.

It is a partially disassembled perspective view of the building unit which concerns on this embodiment. It is a side view of a roof unit structure. It is a perspective view which shows the state which the 2nd roof panel is installed in the 1st roof unit, and the roof unit structure is formed. It is a manufacturing process drawing of the 2nd roof panel. Of these, (a) is the first step, (b) is the second step, (c) is the third step, and (d) is the fourth step. It is an enlarged view of the metal fitting for transporting a roof unit of FIG. Of these, (a) is a state before connection, and (b) is a state in which they are connected. It is a front view of FIG. Of these, (a) is the state before connection, and (b) is the state after connection. It is a side sectional view of FIG. Of these, (a) is the state before connection, and (b) is the state after connection. It is the same enlarged view as FIG. 5 of the modification of the roof unit transport metal fittings. Of these, (a) is a state before connection, and (b) is a state in which they are connected. It is a front view of FIG. Of these, (a) is the state before connection, and (b) is the state after connection. It is a side sectional view of FIG. Of these, (a) is the state before connection, and (b) is the state after connection. It is a side view which shows the state which the roof unit structure is mounted on the loading platform of a truck, and is transported. It is a perspective view which shows the appearance of building the wife small wall of the second roof unit at the construction site. (A) is a cross-sectional view of part A in FIG. 12, and (b) is a cross-sectional view of part B in FIG. It is a perspective view which shows the state that the girder truss of the 2nd roof unit is built in the construction site. It is a partially enlarged perspective view of the part C of FIG. It is a perspective view which shows the appearance that the 2nd roof panel of the 2nd roof unit is installed in the construction site. (A) is a cross-sectional view of part D in FIG. 16, (b) is a cross-sectional view of part E, (c) is a cross-sectional view of part F, and (d) is a cross-sectional view of part G.

Hereinafter, the present embodiment will be described in detail with reference to the drawings.
1 to 17 are for explaining this embodiment.

<Structure> The configuration will be described below.

As shown in FIG. 1, a building 1 such as a house is constructed by a unit construction method. In this unit construction method, the building 1 (unit building 6) can be constructed in a short period of time by transporting the building unit 2 and the roof unit 4 manufactured in advance at the factory to the construction site 3 and assembling them at the construction site 3. It is something to do.

In the unit building 6, for example, the roof unit 4 is installed on each of the plurality of building units 2. In this figure, the roof unit 4 has one or more rows in the gable direction Y, in which the central ridge roof unit 4A and the eaves roof units 4B, 4C on both sides thereof are arranged in the wife direction X. It constitutes a gable roof as a whole.

The ridge roof unit 4A has a mountain-shaped roof panel 8A mounted on the hut assembly portion 7. The eaves roof units 4B and 4C have flat roof panels 8B and 8C mounted on the hut assembly portion 7 in an inclined state. The hut group 7 is mainly composed of a wife small wall 11 facing the wife direction X and a girder truss 12 facing the girder direction Y. In the case of the ridge roof unit 4A, the girder truss 12 is installed on both sides. In the case of the eaves roof units 4B and 4C, the girder truss 12 is installed on one side (upper side of the water).

In the eaves roof units 4B and 4C, the wife small wall 11 has a horizontal side abutting on the upper part of the building units 2B and 2C, a vertical side located on the water side, and an inclination of the roof panels 8B and 8C. It is an almost right-angled triangular panel with diagonal sides along it. The girder truss 12 is a panel frame having a substantially rectangular shape. The roof panels 8B and 8C are continuous with the mountain-shaped roof panel 8A of the ridge roof unit 4A, respectively, and are eaves extending outward so as to protrude from the hut assembly 7 at the end on the eaves side. It can have a portion 13. As a result, the eaves roof units 4B and 4C are configured in a substantially triangular shape when viewed from the side. However, the configuration of the building unit 2 and the roof unit 4 in the unit building 6 is not limited to the above.

In contrast to the above, this embodiment has the following configuration.

(A) About the roof unit structure 21 As shown in FIG. 2 (FIG. 3), the first roof panel 8B is mounted on the hut assembly portion 7, and the entire roof unit structure 21 is formed into a substantially triangular shape in a side view. A second roof panel having a roof unit 4B and a width dimension W2 equivalent to that of the first roof panel 8B (width dimension W1) (FIG. 3) and constituting the second roof unit 4C (FIG. 1). 8C is provided.
The first roof unit 4B and the second roof panel 8C were overlapped in parallel with the water upper end 22 of the first roof panel 8B and the end 23 of the second roof panel 8C aligned in parallel. In this state, the roof unit structure 21 is formed by integrally connecting the roof unit transport metal fittings 24.

Here, for convenience, the unit building 6 will be described as having a gable roof composed of two eaves roof units 4B and 4C without using the ridge roof unit 4A (see FIG. 16). In this case, the eaves roof units 4B and 4C in FIG. 1 are referred to as the first roof unit 4B and the second roof unit 4C, respectively. These shall be installed on the building unit 2 (building unit 2B and another building unit 2C) formed with the same standard dimensions, respectively. The roof unit structure 21 according to this embodiment does not apply to roofs such as single-flow roofs, gable roofs, hipped roofs, and roofs with roofs (girders).

The equivalent width dimensions W1 and W2 mean that the dimensions of the first roof panel 8B and the second roof panel 8C in the girder direction Y are the same or almost the same (W1 = W2 or W1≈W2, but , W1> W2) when W1≈W2. The roof unit structure 21 according to this embodiment is applied between two large roof units 4B and 4C having a slight dimensional difference that cannot be combined by the existing method.

In the existing method, two roof units 4 having a sufficient difference in size are nested inside a roof unit 4 having a large width dimension and a roof unit 4 having a small width dimension inserted therein. One of the two roof units 4 that are small enough to be combined or one of the two roof units 4 that is sufficiently small is turned upside down, and the roof panels 8 are oriented so that they are in surface contact with each other and placed on the other roof unit 4 to move them up and down. There are things to combine.

The first roof unit 4B is manufactured at the factory. The second roof panel 8C is manufactured at the factory by the following process. First, as shown in FIG. 4A, the panel frame 33 is made by combining the cross members 31 and the rafters 32 in the first step (framework step) (with the field ground facing upward). Next, as shown in FIG. 4B, the hurricane tie 34 (fixing metal fitting) is temporarily fixed to the rafter 32 in the second step (metal fitting mounting process). Then, as shown in FIG. 4 (c), a face material such as a field board 35 or a waterproof sheet is attached to the field ground of the panel frame 33 in the third step (face material mounting step). Finally, as shown in FIG. 4D, the panel frame 33 is inverted in the fourth step (auxiliary material mounting step), and the head connecting material for constructing the hut assembly portion 7 on the back surface side of the panel frame 33. Attach auxiliary materials such as 37 and girder structural material 38. The girder structural member 38 is attached to the rafter 32 using the hurricane tie 34. However, the manufacturing process of the second roof panel 8C is not limited to the above.

Further, the roof unit structure 21 is manufactured at the factory. At this time, in the second roof panel 8C, the end portion 23 on the water upper side or the eaves side is aligned with the position of the water upper end portion 22 of the first roof panel 8B (FIG. 2). In particular, in the second roof panel 8C, it is preferable that the water upper end portion 23 is aligned with the water upper end portion 22 of the first roof panel 8B. At this time, the end portion 23 of the second roof panel 8C and the end portion 22 on the water side of the first roof panel 8B are substantially aligned with the water side of the wife small wall 11 of the first roof unit 4B. Be lined up.

(B-1) Roof unit transport metal fittings 24

As shown in FIG. 5 (to FIG. 7) (see also FIGS. 2 and 3), the roof unit transport metal fitting 24 has the entire roof unit transport metal fitting 24 (the first roof panel 8B is mounted on the hut assembly portion 7). The unit-side mounting bracket 41 that can be attached to the first roof panel 8B (in the first roof unit 4B) formed in a substantially triangular shape in the side view, and the same as the first roof panel 8B (width dimension W1). It has a width dimension W2 and has a panel-side mounting bracket 42 that can be mounted on the second roof panel 8C (which constitutes the second roof unit 4C).
The panel side mounting bracket 42 and the unit side mounting bracket 41 are overlapped in parallel with the positions of the water upper end 22 of the first roof panel 8B and the end 23 of the second roof panel 8C aligned. It is supposed to be connected to each other.

Here, at least two or more roof unit transport metal fittings 24 are provided on each side surface of the first roof panel 8B and the second roof panel 8C on the wife side with a required interval (FIG. 2, FIG. Figure 3). In this embodiment, the mounting position of the roof unit transport metal fitting 24 is near both ends of each side surface, but the mounting position is not limited to this.

The unit-side mounting bracket 41 includes a bracket main body portion 43 extending from the side portion of the first roof panel 8B in a direction perpendicular to the first roof panel 8B (the side of the second roof panel 8C). The metal fitting main body 43 mainly has a surface parallel to the side portion of the first roof panel 8B. This surface is a flat surface having a length obtained by adding the thickness of the first roof panel 8B and the second roof panel 8C and the holding interval 44 of the second roof panel 8C with respect to the first roof panel 8B. Has been done. Reinforcing bent edge portions 45 (flange portions) bent to the opposite side of the first roof panel 8B can be formed on both side edges of the flat surface.

The metal fitting main body 43 of the unit side mounting metal fitting 41 has a fixing portion 43a whose one end side (base end side) can be fixed to the side portion of the first roof panel 8B by a fastening fixing tool 46a such as a bolt or a nut. It has become. A spacer 47 is integrally or separately attached to the surface of the fixing portion 43a on the first roof panel 8B side. The spacer 47 has a length of the metal fitting body 43 as a long side and a thickness of the first roof panel 8B as a short side. It is formed thick.

The metal fitting body 43 of the unit-side mounting bracket 41 has its other end side (tip side) overlapped with one end portion (tip portion) of the panel-side mounting bracket 42 by fastening fixtures 46b such as bolts and nuts. It is a fastening portion 43b that can be fastened and fixed. The unit-side mounting bracket 41 and the spacer 47 are provided with bolt holes at appropriate positions.

Further, the panel-side mounting bracket 42 has a bracket body portion 48 having a surface parallel to the side portion of the second roof panel 8C and the bracket body portion 43 (fastening portion 43b) of the unit-side mounting bracket 41. There is. In this embodiment, the panel-side mounting bracket 42 has a bracket body portion 48 extending from the side portion of the second roof panel 8C in a direction perpendicular to the second roof panel 8C (the side of the first roof panel 8B). Mainly prepared. The metal fitting main body 48 of this embodiment has a flat surface having a length of about twice the thickness of the second roof panel 8C.

The metal fitting body portion 48 of the panel side mounting bracket 42 has a fixing portion 48a whose other end side (base end side) can be fixed to the side portion of the second roof panel 8C by a fastening fixture 46c such as a bolt or a nut. ing.

One end side (tip side) of the metal fitting body portion 48 of the panel side mounting metal fitting 42 is superposed on the fastening portion 43b of the unit side mounting metal fitting 41 and can be fastened and fixed to each other by a fastening fixing tool 46b such as a bolt or a nut. It is said to be part 48b. A spacer 49 that can come into contact with the fastening portion 43b is integrally or separately attached to the surface of the fastening portion 48b on the fastening portion 43b side. The spacer 49 can be substantially the same as the spacer 47 of the unit-side mounting bracket 41. The panel side mounting bracket 42 and the spacer 49 are provided with bolt holes at appropriate positions.

(B-2) Between the unit side mounting bracket 41 and the panel side mounting bracket 42, the first roof panel 8B and the second roof panel 8C are parallel to each other with the ends 22 and 23 aligned. Positioning portions 51 that can be positioned on each other in a stacked state may be provided.

Here, the positioning portion 51 is formed from the notch portion 52 for positioning formed in the other end portion (fastening portion 43b) of the unit side mounting bracket 41 and the other end portion (fixing portion 48a) of the panel side mounting bracket 42. It has a protruding positioning pin 53. The cut portion 52 has an inverted triangular shape whose width decreases toward the base end side of the unit-side mounting bracket 41, and is provided at the center of the width of the unit-side mounting bracket 41. The positioning pin 53 is projected from the center of the width of the panel-side mounting bracket 42 toward the outside of the surface. Then, by fitting the positioning pin 53 into the notch 52, the positions of the water upper end 22 of the first roof panel 8B and the end 23 of the second roof panel 8C are set to be aligned. There is.

(B-3) As shown in FIG. 8 (to FIG. 10) (see also FIGS. 2 and 3), the following panel side mounting bracket 55 is provided as a modification of the panel side mounting bracket 42. Can be done. That is, the panel-side mounting bracket 55 may include a complementary portion 56 capable of complementing the difference (W1-W2) in the width dimensions W1 and W2 between the first roof panel 8B and the second roof panel 8C. ..

Here, the complementary portion 56 has the width dimensions W1 and W2 when there is a slight difference (W1-W2) in the width dimensions W1 and W2 between the first roof panel 8B and the second roof panel 8C. It is used to make up for the difference and connect without any trouble.

In the panel-side mounting bracket 55 having the complementary portion 56, the fixing portion 48a and the fastening portion 48b are arranged in a state of facing each other with a gap. The fixing portion 48a and the fastening portion 48b are connected by a connecting portion 48c. The connecting portion 48c functions as a complementary portion 56 by being formed to have the same length (W1-W2) as the difference between the width dimensions W1 and W2 of the first roof panel 8B and the second roof panel 8C. As a result, the panel-side mounting bracket 55 has a bracket main body portion 48 having a U-shape when viewed from the side.

Then, by preparing a plurality of types of panel-side mounting brackets 55 having different lengths of the connecting portions 48c and using them properly according to the difference (W1-W2) between the width dimensions W1 and W2 described above, the width dimensions W1 and W2 can be changed. The first roof panel 8B and the second roof panel 8C having a difference (W1-W2) can be easily connected. In this case, since the connecting portion 48c has the function of the spacer 49, the spacer 49 may or may not be provided.

A reinforcing plate portion 57 having a surface orthogonal to these can be provided between the fixing portion 48a, the fastening portion 48b, and the connecting portion 48c. It is installed at a position approximately at the center of the width of the panel side mounting bracket 55 so as not to interfere with the positioning pin 53.

(C) Roof unit transportation method As shown in FIG. 2, the first roof unit 8B is mounted on the hut assembly portion 7, and the entire roof unit 4B is formed into a substantially triangular shape in a side view. The second roof panel 8C having the same width dimension W2 as the first roof panel 8B (width dimension W1) and constituting the second roof unit 4C is connected to the water upper side of the first roof panel 8B. The end portion 22 of the roof and the end portion 23 of the second roof panel 8C are aligned and overlapped in parallel, and are integrally connected by using the roof unit transport metal fitting 24. In this state, the first roof unit 4B is placed in an upright posture rotated by 90 ° with respect to the building installation posture. Then, as shown in FIG. 11, the first roof unit 4B and the second roof panel 8C are simultaneously transported.

Here, the first roof unit 4B and the second roof panel 8C (roof unit structure 21) in the upright posture are loaded on the loading platform 62 of the truck 61 in the upright posture and directly fixed by using a rope or the like. Can be transported.

The wife small wall 11 constituting the hut assembly portion 7 of the second roof unit 4C is manufactured in advance at the factory, and is directly placed in the vacant space of the loading platform 62 of the truck 61 or a transport stand such as a rack. By mounting using 63, it may be transported. Further, the girder truss 12 constituting the hut assembly portion 7 of the second roof unit 4C is manufactured in advance at the factory, and another roof unit 4 (for example, the first roof unit 4B or another roof unit) is manufactured. By temporarily fixing it to 4), it may be transported together with other roof units 4.

(D) Roof construction method As shown in FIG. 2, the first roof unit 4B and the first roof unit 4B, in which the first roof panel 8B is mounted on the hut assembly 7 and the whole is formed into a substantially triangular shape in the side view, and the first roof unit 4B. The second roof panel 8C having the same width dimension W2 as the roof panel 8B (width dimension W1) of 1 and constituting the second roof unit 4C is connected to the water upper side of the first roof panel 8B. As shown in FIG. 11, in a state where the end portion 22 and the end portion 23 of the second roof panel 8C are aligned and overlapped in parallel and integrally connected by using the roof unit transport metal fitting 24, the first The roof unit 4B and the second roof panel 8C are simultaneously transported to the construction site 3.
Then, as shown in FIGS. 12 (17), the first roof unit 4B is installed on the upper part of the building unit 2B installed at the construction site 3, and the second roof unit 4B is installed on the upper part of another building unit 2C. A second roof unit 4C is constructed using the roof panel 8C of the above, and the second roof unit 4C is installed on the upper part of another building unit 2C.

Here, in the building 1 of FIGS. 12 to 17, for convenience of explanation, the first roof unit 4B and the second roof unit 4C are placed on the building unit 2B and another building unit 2C, respectively, as described above. Is installed to form a unit building 6 in which a gable roof is composed of a first roof unit 4B and a second roof unit 4C. However, the building 1 to which the roof unit structure 21 can be applied is not limited to the unit building 6 having the above configuration.

The roof unit structure 21 transported to the construction site 3 is first disassembled into a first roof unit 4B and a second roof panel 8C by removing the roof unit transport metal fitting 24.

Next, the first roof unit 4B is installed on the building unit 2B installed at the construction site 3. Installation of the first roof unit 4B on the building unit 2B is performed as usual.

Then, the second roof unit 4C is constructed on the upper part of the building unit 2C installed at the construction site 3. The construction of the second roof unit 4C on the upper part of another building unit 2C is performed as follows.

First, as shown in FIG. 12, a pair of gable walls 11 are lifted by a crane and built on the gable side of the upper part of another building unit 2C. The end small wall 11 is formed by attaching a triangular face member 11d (FIG. 13A) to a triangular frame composed of an upper frame 11a, a lower frame 11b, and a vertical member 11c. Then, as shown in FIGS. 13A and 13B, the lower frame 11b of the wife small wall 11 is fixed to the upper frame 74a such as the wife wall 74 of another building unit 2C with fasteners 72 such as joint bolts and nuts. do.

At this time, as shown in FIG. 13A, the position of the wife small wall 11 on the outer wall side is adjusted so as to align the surface (face material 11d) with the outer wall 73 of another building unit 2C. Further, as shown in FIG. 13B, the position of the wife small wall 11 on the inner wall side is adjusted so as to be aligned with the upper frame 74a and the lower frame 11b of another building unit 2C.

Next, as shown in FIG. 14 (FIG. 15), the girder truss 12 (12C) (for the second roof unit 4C) is replaced with the first roof unit 4B (girder truss 12B) and (second roof). It is built between the wife small wall 11 (for unit 4C). The girder truss 12 has a rectangular frame shape composed of an upper chord member 12a, a lower chord member 12b, a vertical member 12c (FIG. 15), and a diagonal member 12d. The vertical member 12c is fixed to the wife small wall 11 (vertical member 11c). The girder truss 12 (12C) is used by removing the one temporarily fixed to the other roof unit 4 (for example, the first roof unit 4B or the other roof unit 4).

As a result, the hut assembly 7 is constructed on the upper part of another building unit 2C. The assembly procedure of the wife small wall 11 and the girder truss 12 (12C) can be changed so that the girder truss 12 (12C) is installed first and the wife small wall 11 is installed later. Further, the girder truss 12 (12C) of the second roof unit 4C may be omitted depending on the situation because the girder truss 12 (12B) is also provided in the adjacent first roof unit 4B.

Finally, as shown in FIG. 16, the second roof panel 8C is lifted by a crane and installed on the upper part of the hut assembly 7.

At this time, as shown in FIGS. 17A and 17B, the portion of the second roof panel 8C on the side of the small wall 11 is provided with a head connecting material 37, a joint bolt or the like on the upper frame 11a of the small wall 11. Join using the fixture 76 of. At this time, the position of the head connecting member 37 is adjusted so as to align the surface with the inside of the upper frame 11a of the wife small wall 11.

As shown in FIG. 17C, the eaves side portion of the second roof panel 8C uses a girder structural material 38, and a fixture 78 such as a joint bolt is used on the upper part of the girder wall 77 of another building unit 2C. And join.

As shown in FIG. 17D, the portion of the second roof panel 8C on the girder truss 12 side is joined to the upper chord member 12a of the girder truss 12 with a fixture 79 such as a wood screw.

As a result, the second roof unit 4C is constructed on the upper part of the other building unit 2C, and the second roof unit 4C is installed with the position adjusted with respect to the upper part of the other building unit 2C. ..

<Action / Effect> According to this example, the following action / effect can be obtained.

By transporting the building unit 2 and the roof unit 4 manufactured in advance at the factory to the construction site 3 and assembling them at the construction site 3, the building 1 (unit building 6) can be constructed in a short period of time.

In such a unit building 6, efficiently transporting a plurality of building units 2 constituting the building body and a plurality of roof units 4 constituting the roof to the construction site 3 can shorten the construction period of the unit building 6. It is important for cost reduction.

(A) Action and effect of roof unit structure 21

The first roof unit 4B and the second roof panel 8C used for the second roof unit 4C are integrated to form the roof unit structure 21. By manufacturing the roof unit structure 21 at the factory, the first roof unit 4B and the second roof panel 8C can be compactly packed and efficiently transported. As a result, the main part (second roof panel 8C) of the first roof unit 4B and the second roof unit 4C can be transported together by one truck 61, so that the transportation efficiency is improved. Compared to the case where the first roof unit 4B and the second roof unit 4C are divided into two trucks 61 and transported separately, the number of trucks 61 used is reduced to improve the efficiency of transportation. Can be done.

The remaining hut assembly 7 of the second roof unit 4C is not composed of as large a member as the second roof panel 8C, so that it can be easily loaded on the truck 61 (for example, with the wife small wall 11). Transported by using the empty pace of the truck 61 (divided into girder truss 12), or temporarily fixed to another roof unit 4 (for example, the first roof unit 4B or another roof unit 4). Since it can be done, there is no particular problem in transportation.

Then, by integrating the first roof unit 4B having a substantially triangular shape in the side view and the second roof panel 8C having the same width dimension W2 as the first roof panel 8B (width dimension W1), the first roof panel 8C is integrated. It is possible to almost solve the problem of transportation to a plurality of roof units 4 having a small difference in size, which has been difficult to transport together. Such a structure is particularly effective for a relatively large roof unit 4 in which if the two roof units 4 are combined and integrated as they are, they cannot be transported beyond the limit of the size that can be carried by the truck 61. Is.

If the two roof units 4 have a sufficient difference in size, the roof unit 4 having a small width is inserted inside the roof unit 4 having a large width. Since the pieces can be transported at the same time, it is not necessary to transport them as the roof unit structure 21 as in this embodiment. Further, when the two roof units 4 are both sufficiently small, they can be combined in the vertical direction as they are and transported by the truck 61 at the same time. Therefore, the roof unit structure 21 is used as in this embodiment. No need to transport.

In this embodiment, the roof unit structure 21 is integrally connected between the (large) first roof panel 8B and the second roof panel 8C, which are not so different in size, by the roof unit transport metal fittings 24. By doing so, the first roof unit 4B and the second roof panel 8C can be handled integrally, and these can be directly placed on the loading platform 62 of the truck 61 without using a transport platform such as a rack. It becomes possible to transport all at once (however, the roof unit structure 21 may be transported on the truck 61 by using a transport stand). Moreover, since both the first roof unit 4B and the second roof panel 8C have a unit size, they can be easily handled (when constructing the building 1) after being transported to the construction site 3.

Then, by aligning the positions of the water upper end 22 of the first roof panel 8B and the end 23 of the second roof panel 8C and connecting them with the roof unit transport fitting 24, the first roof unit 4B And the second roof panel 8C can be made to stand on their own in an upright posture with the water side of the first roof unit 4B facing down. Therefore, the roof unit structure 21 can be stably transported in an upright posture.

Further, by connecting the first roof panel 8B and the second roof panel 8C in parallel and tying them together with the roof unit transport metal fitting 24, it is the most compact with respect to the first roof unit 4B. In this state, the roof unit structure 21 to which the second roof panel 8C is connected can be made.

(B) Action effect of roof unit transportation metal fittings 24

The roof unit transport metal fitting 24 may be composed of the unit side mounting metal fitting 41 and the panel side mounting metal fittings 42 and 55. As a result, with a simple configuration, the first roof panel 8B and the second roof panel 8C, which are not so different in size, can be securely connected and integrated (to form the roof unit structure 21). can.

At this time, with the unit-side mounting bracket 41 attached to the first roof panel 8B and the panel-side mounting brackets 42 and 55 attached to the second roof panel 8C, the second roof panel is attached to the first roof panel 8B. By stacking 8Cs and connecting (fastening and fixing) the unit side mounting brackets 41 and the panel side mounting brackets 42 and 55, the first roof panel 8B and the second roof panel 8C can be easily integrated. , Workability is good.

(B-2) Then, a positioning portion 51 may be provided between the unit-side mounting bracket 41 and the panel-side mounting brackets 42 and 55. As a result, the first roof panel 8B and the second roof panel are in a state where the positions of the water upper end portion 22 of the first roof panel 8B and the end portion 23 of the second roof panel 8C are accurately aligned. 8C can be easily and surely integrated.

(B-3) The panel-side mounting bracket 55 may include a complementary portion 56 capable of complementing the difference in width dimensions W1 and W2 between the first roof panel 8B and the second roof panel 8C. As a result, even if there is a slight difference in width dimensions W1 and W2 between the first roof panel 8B and the second roof panel 8C, the complementary portion 56 compensates for the difference in width dimensions W1 and W2 without any problem. The second roof panel 8C can be connected to the first roof panel 8B.

(C) Effect of roof unit transportation method

By placing the roof unit structure 21 in an upright position in a state where the second roof panel 8C is integrated with the first roof unit 4B (roof unit structure 21), the first roof unit 4B and the second roof unit 4B and the second roof unit 4B are placed in an upright position. The roof panel 8C can be transported on the loading platform 62 of the truck 61.

At this time, by aligning the positions of the ends 22 and 23 and integrally connecting the first roof panel 8B and the second roof panel 8C with the roof unit transport metal fitting 24, the first roof panel 8B and the first roof panel 8B are connected. Since the roof panel 8C of 2 can stably stand on its own in an upright posture, for example, it can be directly mounted on the truck 61 without using a transport stand such as a rack, or it can be mounted on the truck 61 by using a simple transport stand. It will be possible to carry it all at once.

(D) Effect of roof construction method

The roof unit structure 21 transported to the construction site 3 can be easily disassembled into the first roof unit 4B and the second roof panel 8C by removing the roof unit transportation metal fittings 24 at the construction site 3.

Then, the first roof unit 4B can be installed as usual with respect to the upper part of the building unit 2B. Further, the second roof panel 8C can be completed as the second roof unit 4C on the upper part of another building unit 2C, and the second roof unit 4C can be installed as it is on the upper part of the other building unit 2C. ..

In this way, by constructing the second roof unit 4C at the construction site 3 and installing it on the upper part of another building unit 2C, the second roof unit 4C can secure the quality and strength as a unit. , Quality control and position adjustment can be performed in the same manner as the normal roof unit 4. In the second roof unit 4C, panels such as the wife small wall 11 and the girder truss 12 constructed in advance at the factory are combined to form a hut assembly part 7, and the second roof panel 8C is attached on the hut assembly part 7. Since it can be constructed only by itself, it can be completed in a relatively short time (even on another building unit 2C). Further, the position of the second roof unit 4C can be adjusted while being constructed on the upper part of another building unit 2C, or the position of the second roof unit 4C can be adjusted after being constructed.

As a result, the roof unit 4 can be installed on the building body to construct the unit building 6 without affecting the structure of the lower building body such as the building unit 2B or another building unit 2C. ..

1 building 2 building unit 2B building unit 2C another building unit 3 construction site 4 roof unit 4B first roof unit 4C second roof unit 6 unit building 7 hut assembly 8 roof panel 8B first roof panel 8C second Roof panel 21 Roof unit structure 22 Water upper end 23 End 24 Roof unit transportation metal fittings 41 Unit side mounting metal fittings 51 Positioning part 55 Panel side mounting metal fittings 56 Complementary part W1 Width dimension W2 Width dimension

Claims (4)

In the first roof unit in which the first roof panel is mounted on the hut assembly portion and the whole is formed in a substantially triangular shape in a side view, the unit-side mounting bracket that can be mounted on the first roof panel and the first. It has a width dimension equivalent to that of the roof panel of 1, and has a panel-side mounting bracket that can be mounted on the second roof panel constituting the second roof unit, and the panel-side mounting bracket and the unit-side mounting. The metal fitting is a roof characterized in that the water upper end portion of the first roof panel and the end portion of the second roof panel are aligned and overlapped in parallel and connected to each other. Metal fittings for unit transportation. In the roof unit transport metal fitting according to claim 1 ,
A positioning unit that positions the first roof panel and the second roof panel in a state of being overlapped in parallel with the positions of the ends aligned between the unit-side mounting bracket and the panel-side mounting bracket. A metal fitting for transporting a roof unit, which is characterized by being equipped with. In the roof unit transport fitting according to claim 1 or 2 .
The panel-side mounting bracket is a roof unit transport bracket provided with a complementary portion capable of complementing the difference in width dimension between the first roof panel and the second roof panel. A first roof unit having a first roof panel mounted on the hut assembly portion and formed in a substantially triangular shape in a side view, and a second roof unit having the same width dimension as the first roof panel. The second roof panel constituting the roof unit of No. 1 is overlapped in parallel with the water upper end of the first roof panel and the end of the second roof panel aligned in position for transporting the roof unit. The first roof unit and the second roof panel are simultaneously transported to the construction site in a state of being integrally connected using metal fittings, and the first roof unit is placed on the upper part of the building unit installed at the construction site. At the same time, the second roof unit is constructed by using the second roof panel on the upper part of another building unit, and the second roof unit is installed on the upper part of the other building unit. A roof construction method characterized by doing.

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