JP6144037B2 - Building roof structure - Google Patents

Description

  The present invention relates to a roof structure of a building.

  In a building constituting a medium-sized store such as a convenience store, the building structure is industrialized, and the roof may be constructed by a plurality of roof units installed on the building body. For example, there is a building that has a plurality of substantially rectangular roof units arranged along the width direction of a building, and a roof is constructed by these roof units (for example, Patent Document 1). In this building, the roof unit is manufactured at a factory, and then the roof unit is transported to the building construction site using a transportation means such as a truck.

  Here, in a building in which a plurality of roof units are arranged in a line in parallel along the width direction of the building, the long sides are adjacent to each other, the length dimension (longitudinal dimension) on the long side of the roof unit However, for example, it is a size that can be loaded on a truck bed and is a size that matches the depth dimension of the building. In this case, in the width direction of the building, the number of roof units corresponding to the width dimension of the building are arranged in a line.

JP 2000-27366 A

  However, when the roof unit is transported using a transportation means, the size of the roof unit is restricted due to restrictions on transportation such as the size of the truck bed, and consequently the size of the building is restricted. . In this case, in order to construct a building having a depth dimension larger than the longitudinal dimension of the roof unit, a plurality of roof units may be arranged along the depth direction of the building. However, in this case, when a plurality of roof units are arranged in series with their short sides adjacent to each other in the depth direction of the building, the depth dimension of the building is N times the longitudinal dimension of the roof unit (N is an integer of 2 or more). However, there is a concern that the sum of the depth dimensions of the roof units arranged in series becomes too larger than the depth dimension of the building. This concern similarly occurs in the width direction of a building in a building in which a plurality of roof units are arranged in parallel along the depth direction of the building.

  The present invention has been made in view of the above circumstances, and in a roof structure of a building having a plurality of roof units, the degree of freedom regarding the arrangement of the roof units is increased, and a roof having a water gradient is preferably constructed. Is the main purpose.

  Hereinafter, means and the like effective for solving the above-described problems will be described while showing functions and effects as necessary.

  A roof structure of a building according to a first aspect of the present invention is a building having a substantially rectangular parallelepiped roof unit provided side by side on a building body, and the roof units are connected to each other to form a roof. In the roof structure, the roof unit includes a first roof unit in which the longitudinal direction is an inclined direction of the water gradient, and a second roof unit in which the short direction is the inclined direction of the water gradient, The inclined side portion that is inclined along the roof surface portion of the first roof unit is a long side portion, the roof surface portion of the second roof unit is a short side portion, and the water gradient is The non-inclined side portion extending in the orthogonal direction is a short side portion in the roof surface portion of the first roof unit, and is a long side portion in the roof surface portion of the second roof unit. And said Roof unit is characterized in that the orientation each of the inclined side portions at the boundary portions thereof roof unit is arranged, or each of the non-inclined edges portions are disposed in an orientation disposed.

  According to the first invention, the first roof unit and the second roof unit are arranged in such a direction that the long side portion of one roof unit and the short side portion of the other roof unit are arranged at the boundary portion of the roof units. Since it is installed, it becomes possible to form one side of the roof in plan view with the long side of one roof unit and the short side of the other roof unit. In this case, the length in the width direction or the depth direction of the roof can be set finely in addition to N times (N is an integer of 1 or more) of the first roof unit and the second roof unit. Thereby, when constructing | assembling a roof by a some roof unit, the freedom degree regarding the setting of the magnitude | size of the roof in planar view can be raised.

  Here, for example, when an inclined side part and a non-inclined side part are arranged at the boundary between the first roof unit and the second roof unit, the size of the gap between the inclined side part and the non-inclined side part in the vertical direction However, there is a concern that the work load for performing the waterproofing process on the gap increases depending on the location in the inclination direction of the roof. On the other hand, according to the present configuration, since the inclined side portions or the non-inclined side portions are arranged at the boundary portion between the first roof unit and the second roof unit, between the roof units. It is possible to reduce the work load of waterproofing processing for the upper and lower gaps.

  Moreover, the first roof unit and the second roof unit are different depending on whether the inclination direction of the water gradient is the longitudinal direction or the short direction, and as described above, the long side portion of each roof unit is arranged on one side of the roof. Even if the short side portion is mixed, the mixed long side portion and short side portion can be unified into the inclined side portion or the non-inclined side portion. In this case, it becomes possible to unify each inclination direction of the water gradient in the first roof unit and the second roof unit into one of the depth direction and the width direction of the building, and thus the configuration related to the rain closing can be simplified.

  As described above, the degree of freedom regarding the arrangement of the roof unit can be increased, and a roof having a water gradient can be suitably constructed.

  According to a second invention, in the first invention, the plurality of first roof units are arranged side by side with their long sides adjacent to each other, and the second roof unit has its long sides The plurality of first roof units are arranged side by side adjacent to each short side portion.

  According to the second invention, one of the width dimension and the depth dimension of the building can be set by the short dimension and the number of the first roof units arranged in parallel, and the other is the longitudinal dimension of the first roof unit. And it can set with the short size of the 2nd roof unit. Thereby, the freedom degree of a setting can be raised about both the width dimension and depth dimension of a building.

  In addition, in the boundary part of said 1st roof units, it is preferable that each said inclination side part is mutually connected. In this case, since the continuous surface is formed by the roof surface portions of the plurality of first roof units, it is possible to simplify the rain performance at the boundary portion between the first roof units. In this case, since the height dimension and the water gradient of each first roof unit may be set to be the same, the work burden and the cost burden when manufacturing a plurality of first roof units can be reduced.

  In a third aspect, in the second aspect, the plurality of second roof units are arranged side by side with their short sides adjacent to each other.

  According to the third aspect, the plurality of second roof units can be arranged in series according to the sum of the short dimensions of the plurality of first roof units arranged in parallel. Therefore, it is possible to increase the degree of freedom of dimension setting in the arrangement direction of the second roof units.

  In addition, in the boundary part of said 2nd roof units, it is preferable that each said inclination side part is mutually connected. In this case, since the continuous surface is formed by the roof surface portions of the plurality of second roof units, it is possible to simplify the rain performance at the boundary portion between the second roof units. In this case, since the height dimension and the water gradient of each second roof unit may be set to be the same, the work burden and cost burden when manufacturing a plurality of second roof units can be reduced.

  In 4th invention, in said 3rd invention, said 1st roof unit and said 2nd roof unit are the inclination upper-end part side of said 1st roof unit and the inclination of said 2nd roof unit in the boundary part of those roof units. It is installed in the direction in which the upper end side is arranged.

  According to 4th invention, in the 1st roof unit and the 2nd roof unit, since the upstream edge part of each water gradient is arrange | positioned in those boundary parts, water, such as rain water, is a boundary part. It will flow toward the other side. In this case, it is not necessary to provide a drainage facility such as a dredger at the boundary between the first roof unit and the second roof unit, and it is possible to suppress a complicated structure of rain at the boundary.

  According to a fifth invention, in the fourth invention, each roof unit includes an inclined cross member extending along the inclined direction, and a bundle member that supports the inclined cross member from below, and each of the roof units In the pair of non-inclined sides, the one arranged at the upper end of the water gradient is the upstream side, and the one arranged at the lower end of the water gradient is the downstream side, At the boundary portion between the first roof unit and the second roof unit, the height positions of the upstream side portions are different, and among the roof units, the height position of the upstream side portion is lower. The inclined cross member of the roof unit is connected to the bundle member of the roof unit having a higher height position of the upstream side portion.

  According to 5th invention, in the connection part of a 1st roof unit and a 2nd roof unit, the roof unit in which the upstream side part is in a high position is the roof unit in which the upstream side part is in a low position Is in a state of supporting. In this case, if the bundle of the roof unit with the higher upstream side is installed on the frame of the building body, the bundle of the roof unit with the lower upstream side is Even if it is not installed on top, it will support the bundles of both roof units by its housing. Therefore, there is no need to provide a dedicated housing for installing a bundle of roof units having a lower upstream side, and the cost burden can be reduced with respect to the construction of the building body.

  In a sixth invention, in the fifth invention, each roof unit has a lower lateral member connected to a lower end of the bundle member, and the first roof unit and the second roof unit At the boundary, among the roof units, the lower cross member of the roof unit having the higher height of the upstream side is the bundle of the roof units having the lower height of the upstream side. Connected to the material.

  According to the sixth aspect of the invention, in the connecting portion between the first roof unit and the second roof unit, the upstream side portion is at a low position with respect to the bundle member of the roof unit having the higher upstream side portion. The roof unit can be firmly fixed.

  In a seventh invention, in the fifth or sixth invention, the first roof unit and the second roof unit have substantially the same longitudinal dimension and short dimension, and in the second roof unit, The height dimension on the upstream side is substantially the same as or smaller than the height dimension on the downstream side in the first roof unit.

  When each roof unit is manufactured in a factory, these roof units are loaded on a large vehicle such as a 10-ton car and transported from the factory to a building site. Here, assuming that a plurality of first roof units are stacked in a single large vehicle, the first roof units are alternately arranged in the vertical direction with their upstream side portions and downstream side portions arranged alternately. By stacking as described above, the dead space generated in the loading space of the large vehicle can be minimized. In this case, the first roof units can be individually fixed to the vehicle body by partitioning the storage spaces for storing the first roof units individually in the vertical direction.

  Here, according to the seventh invention, since the second roof unit has a size and a shape that can be stored in the storage space for the first roof unit, the first roof unit and the second roof are installed in a large vehicle. When loading any of the units, there is no need to change the partition mode of the loading platform space in a large vehicle. Therefore, it is possible to reduce the work burden when loading the first roof unit and the second roof unit on the large vehicle.

  According to an eighth invention, in any one of the first to seventh inventions, a building used as a store, as an indoor space, a sales space for selling products arranged on the front side of the building, and the sales floor Applied to a building having a backyard space arranged on the back side of the space, and on the upper side of the sales space, a plurality of the first roof units are installed side by side with their long sides adjacent to each other In the upper side of the backyard space, the second roof unit is installed in a direction orthogonal to the first roof unit. In the building main body, the first roof unit and the second roof unit are installed. A plurality of columns supporting the roof unit are arranged along the boundary between the sales floor space and the backyard space.

  According to the eighth invention, in the store where the sales floor space and the backyard space are arranged in front and rear with respect to the front side of the building, the first roof unit is arranged above the sales floor space, and the backyard space is provided. A second roof unit is arranged above the second roof unit. In this case, the sales floor space is a large space, the backyard space is configured as a small space, and the boundary between the sales floor space and the backyard space and the boundary between the first roof unit and the second roof unit are arranged vertically. It becomes possible to arrange.

  In this configuration, the boundary between the roof units (first roof unit and second roof unit) provided in two rows in the front-rear direction (depth direction) of the building is provided at the boundary between the sales floor space and the backyard space. It can be supported from below by a pillar or the like. Accordingly, a support material such as a pillar for supporting the first roof unit from below is unnecessary in the sales space, and the sales space can be effectively used by configuring the sales space without a pillar.

  According to a ninth invention, in the eighth invention, among the first roof unit and the second roof unit, a plurality of roof units arranged above the sales space have sunlight in the sales space. The top light for taking in is provided in the state over which these roof units were spanned.

  According to the ninth aspect, since the top light extends along the direction in which the plurality of roof units are arranged above the sales space, sunlight can be taken into a wide range of the sales space through the top light. Thereby, energy saving can be realized regarding lighting of the sales floor space.

  The ninth invention is applied to the second invention, and a plurality of the first roof units arranged in parallel are installed on the upper side of the sales space, and the top lights are installed on the adjacent first roof units. It is preferably provided in the delivered state. In this case, since the same surface is formed by each roof surface of the first roof unit, it is possible to facilitate the waterproofing work performed on the top light mounting portion with respect to the first roof unit.

Perspective view showing the structure of the building Top view of building Exploded perspective view showing the structure of the building Perspective view of the first roof unit Side view of the frame of the part extending in the building depth direction on the outer wall A-A line sectional view of Drawing 2 (b). The figure which shows the state where the roof unit is loaded on the truck Schematic side view of another building Schematic of another building

  Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. In the present embodiment, the roof structure of the present invention is embodied in a building used as a store such as a convenience store. FIG. 1 is a perspective view showing the configuration of the building 10, FIG. 2 is a plan view of the building 10, and FIG. 3 is an exploded perspective view showing the configuration of the building 10. In FIG. 2, (a) shows the arrangement of the outer wall 17 and the partition wall 21, and (b) shows the arrangement of the columns 28 and 29. In FIG. 2B, the position of the outer wall 17 is indicated by a one-dot chain line, and the position of the partition wall 21 is indicated by a partition line L.

  As shown in FIG. 1, a building 10 includes a building main body 12 provided on a foundation 11, a roof 13 provided on the building main body 12, and a ridge 14 projecting sideways from the roof 13. And have. The building body 12 has a substantially rectangular parallelepiped shape, and the indoor space 18 of the building 10 is a large space surrounded by the outer wall 17 of the building body 12. As for the size of the building body 12, for example, the frontage dimension (width dimension) is 15 m, the depth dimension is 12 m, and the height dimension is 3 m, and the indoor space 18 has a size corresponding to these dimensions. .

  As shown in FIG. 2A, the building 10 has a partition wall 21 that partitions the indoor space 18 into a building front (facade) side and a back side. The partition wall 21 extends parallel to the front of the building and extends along the partition line L. In the indoor space 18, the area on the front side of the building relative to the partition wall 21 is a sales space 18 a for selling products, and the area on the back side of the partition wall 21 is a backyard space 18 b as a non-sale space. It is said that. In the sales space 18a, a merchandise display shelf 23 for displaying merchandise, a cashier counter 24 for accounting for merchandise, and the like are installed. The backyard space 18b is used as a warehouse or an office for storing products, and is an area that is not used as a store for products.

  The partition wall 21 is formed with an indoor entrance 25 that allows the sales space 18a and the backyard space 18b to communicate with each other, and the store clerk can go back and forth between the sales space 18a and the backyard space 18b through the indoor entrance 25. Yes. The indoor entrance 25 leads to the space inside the cashier counter 24 in the sales space 18a, and the store clerk directly enters and leaves the backyard space 18b from the inside of the cashier counter 24 without moving to the outside of the cashier counter 24. Be able to.

  The outer wall 17 is provided with an outdoor entrance 27 that allows the outdoor space and the indoor space 18 to communicate with each other. The outdoor doorway 27 is disposed at a portion of the outer wall 17 that forms the front of the building, and allows customers and shop assistants to enter and leave the sales space 18a from the outside.

  As shown in FIG. 2 (b), the building body 12 has a plurality of columns 28 and 29 erected on the foundation 11, and these columns 28 and 29 support the roof 13 from below. . The pillars 28 are a plurality of lattice pillars 28 that are arranged side by side along the outer wall 17 and the partition wall 21, and the pillars 29 are space pillars 29 that are disposed between the lattice pillars 28. The lattice pillars 28 and the interposition pillars 29 are walled pillars integrated with the outer wall 17 and the partition wall 21, and are arranged along the outer wall 17 and the partition wall 21.

  In addition, in the part which forms the building front in the outer wall 17, there is a window glass region in which a plurality of window glasses are provided side by side. In the window glass region, the window glass is fitted and killed. In the window glass region, the lattice pillar 28 is not provided, and the spacer 29 is arranged between the adjacent window glasses. Moreover, the outdoor doorway 27 is arrange | positioned between the adjacent pillars 29 in a window glass area | region.

  As shown in FIGS. 1 and 3, the roof 13 is a flat roof, and the roof surface (upper surface) has a water gradient of 1/50, for example. The roof 13 has a first roof portion 31 disposed on the front side of the building and a second roof portion 32 disposed on the back side of the building. The first roof portion 31 and the second roof portion 32 Are connected to form the roof 13. On the roof surface of the first roof portion 31, the end portion on the building front side is the lower end due to the water gradient, and the end portion on the boundary side with the second roof portion 32 is the upper end. On the roof surface of the second roof portion 32, the end on the back side of the building is the lower end due to the water gradient, and the end on the boundary side with the first roof portion 31 is the lower end. The water gradient may be so large that the roof 13 is regarded as an inclined roof.

  At the boundary between the first roof portion 31 and the second roof portion 32, the upper end of the roof surface of the first roof portion 31 is located higher than the upper end of the roof surface of the second roof portion 32, and a step is formed on the roof 13. Has occurred. In this case, in the boundary part of the roof parts 31 and 32, the height dimension of the 2nd roof part 32 is smaller than the height dimension of the 1st roof part 31, and the upper end of the 2nd roof part 32 is the 1st. It is connected to the side of the back side of the building in one roof part 31.

  In addition, in the roof 13, each upper end of the 1st roof part 31 and the 2nd roof part 32 can also be called a building, and each lower end can also be called an eaves.

  The roof 13 includes roof units 41 and 42 installed side by side on the building body 12. The roof units 41 and 42 have a roof frame 43 formed in a substantially rectangular parallelepiped shape and a roof surface material 44 installed on the roof frame 43, and are formed in a substantially rectangular parallelepiped shape as a whole.

  The roof frame 43 is formed by combining a plurality of long steel materials, and the roof surface material 44 is a folded plate material formed of a metal material. In this case, the roof 13 is a folded plate roof, and the roof surface material 44 is installed in a direction in which the folds of the folded plate material extend along the water gradient. Note that the roof surface material 44 forms a roof surface portion having a roof surface in each of the roof units 41 and 42.

  Among the roof units 41, 42, a plurality of first roof units 41 are arranged in parallel to form a first roof portion 31, and a plurality of second roof units 42 are arranged in series to form a second roof portion 32. Forming. The second roof unit 42 is arranged in a direction in which the longitudinal direction is parallel to the direction in which the first roof units 41 are arranged, and straddles the boundary between the first roof units 41. In this case, the longitudinal direction of the first roof unit 41 and the longitudinal direction of the second roof unit 42 are orthogonal to each other. In this case, the rows of the first roof units 41 and the rows of the second roof units 42 extend in parallel.

  The roof surface portions of the roof units 41 and 42 are a pair of inclined side portions 46 that are inclined along a water gradient, and a pair of non-inclined side portions 47 that extend in a direction orthogonal to the inclined side portions 46 and are not inclined. And have. In the 1st roof unit 41, the longitudinal direction is made into the inclination direction of a water gradient. Specifically, in the first roof unit 41, a water gradient is provided so that water flows along the longitudinal direction of the roof surface, and the pair of long sides serves as a pair of inclined side portions 46. The short side is a pair of non-inclined side portions 47.

  On the other hand, in the 2nd roof unit 42, the transversal direction is made into the inclination direction of a water gradient. Specifically, in the second roof unit 42, a water gradient is provided so that water flows along the short direction of the roof surface, and the pair of short sides is a pair of non-inclined sides 47, The pair of long sides is a pair of inclined side portions 46. In the roof units 41 and 42, the long side and the short side of the roof surface are formed by the peripheral portion of the roof surface material 44.

  In the roof units 41 and 42, the non-inclined side portion 47 on the upstream side of the water gradient of the pair of non-inclined side portions 47 serves as the upstream side portion 47a, and the non-inclined side portion 47 on the downstream side of the water gradient. The inclined side portion 47 is a downstream side portion 47b. In this case, the upstream side 47a is arranged at a position higher than the downstream side 47b.

  In the 1st roof part 31, each inclination side part 46 is arrange | positioned in the boundary part between 1st roof units 41, and these inclination side parts 46 are mutually connected. Similarly, in the second roof portion 32, the inclined side portions 46 are arranged at the boundary portion between the second roof units 42, and the inclined side portions 46 are connected to each other.

  In the boundary portion between the first roof portion 31 and the second roof portion 32, the upstream side portions 47a of the first roof unit 41 and the second roof unit 42 are arranged. In this case, the upstream side 47a of the second roof unit 42 is located at a position lower than the upstream side 47a of the first roof unit 41, and is not connected to the upstream side 47a. 41 is connected to the side surface on the upstream side 47a side.

  Next, the housing of the roof units 41 and 42 will be described with reference to FIG. FIG. 4 is a perspective view of the first roof unit 41. First, the configuration of the casing of the first roof unit 41 will be described. In addition, in FIG. 4, illustration of the roof surface material 44 is abbreviate | omitted.

  As shown in FIG. 4, the first roof unit 41 is a truss unit having roof trusses 51 and 52 extending in the horizontal direction. The roof trusses 51 and 52 are parallel string trusses, and have an upper chord member 55 and a lower chord member 56 that are opposed to each other in the vertical direction, and a diagonal member 57 that connects the upper chord member 55 and the lower chord member 56. The upper chord member 55, the lower chord member 56, and the diagonal member 57 are each formed of groove steel as a steel member, and are arranged with the open side of the groove portion directed in the horizontal direction.

  Of the roof trusses 51 and 52, the roof trusses 51 and 52 extending along the outer peripheral surface of the building 10 are main trusses, and the roof trusses 51 and 52 not extending along the outer peripheral surface are sub-trusses. An outer wall surface material is attached to the main truss, and the main truss is integrated with the outer wall 17.

  Of the roof trusses 51 and 52, a pair of long-side roof trusses 51 extending along the longitudinal direction of the first roof unit 41 are provided in accordance with each of the pair of inclined side portions 46. The short-side roof truss 52 extending along the short direction of the first roof unit 41 is connected to the long-side roof truss 51 in a state of being spanned by the pair of long-side roof trusses 51. Between the long-side roof trusses 51, a plurality are arranged at predetermined intervals in the longitudinal direction of the first roof unit 41.

  In the first roof unit 41, the long-side roof truss 51 extends along the inclined side portion 46, and the upper chord material 55 of the long-side roof truss 51 is inclined according to the inclined side portion 46. That is, the upper chord material 55 and the inclined side portion 46 extend in parallel. In contrast, the lower chord material 56 of the long-side roof truss 51, the upper chord material 55 and the lower chord material 56 of the short-side roof truss 52 extend in the horizontal direction. In the first roof unit 41, the upper chord member 55 of the long-side roof truss 51 corresponds to an inclined cross member, and the lower chord member 56 corresponds to a lower cross member.

  In the first roof unit 41, bundle members 58 are provided at four corners, and the bundle member 58 connects the upper chord member 55 and the lower chord member 56 in the long-side roof truss 51. The bundle material 58 is formed of channel steel as a steel material, similar to the diagonal material 57 and the like, and is arranged with the open side of the groove portion directed in the horizontal direction. In the first roof unit 41, a rectangular parallelepiped skeleton (frame) is formed by the upper chord members 55, the lower chord members 56, and the bundle members 58 of the roof trusses 51 and 52.

  The diagonal member 57 and the bundle member 58 are arranged inside the roof unit with respect to the upper chord member 55 and the lower chord member 56, and the outer surfaces of the diagonal member 57 and the bundle member 58 are the inner parts of the upper chord member 55 and the lower chord member 56. It is fixed to the side by welding or the like.

  Next, the structure of the housing of the second roof unit 42 will be described. However, the second roof unit 42 is different from the first roof unit 41 in other configurations except that the direction of the water gradient is different. The direction of the water gradient will be described.

  In the second roof unit 42, unlike the first roof unit 41, the short side portion is the inclined side portion 46, and therefore the short side roof truss 52 extends along the inclined side portion 46. The upper chord material 55 of the side roof truss 52 is inclined according to the inclined side portion 46. In contrast, the lower chord material 56 of the short-side roof truss 52, the upper chord material 55 and the lower chord material 56 of the long-side roof truss 51 extend in the horizontal direction. In the second roof unit 42, the upper chord member 55 of the short-side roof truss 52 corresponds to the inclined cross member, and the lower chord member 56 corresponds to the lower cross member.

  Next, the structure of the connection part of the 1st roof unit 41 and the 2nd roof unit 42 is demonstrated, referring FIG.2 (b), FIG.5, FIG.6. FIG. 5 is a side view of the casing of the outer wall 17 extending in the building depth direction, and FIG. 6 is a cross-sectional view taken along the line AA in FIG. In addition, in FIG. 5, the figure which looked at the building 10 from the right side in FIG.2 (b) is shown. In FIG. 6, (a) shows an exploded cross-sectional view of a connecting portion between the first roof unit 41 and the second roof unit, and (b) shows a cross-sectional view of the connecting portion.

  As shown in FIG. 5, the building body 12 has an upper beam 61 installed on the lattice pillar 28 and the interposition pillar 29. The upper beam 61 is formed of H-shaped steel, and has a web extending in the vertical direction and a pair of flanges arranged above and below the web. The upper beam 61 is provided so as to extend along the outer wall 17 and so as to extend along the partition wall 21.

  The roof units 41 and 42 are installed on the upper beam 61. In the roof units 41 and 42, the roof trusses 51 and 52 arranged along the outer peripheral surface of the roof 13 are placed on the upper beam 61, and the roof trusses 51 and 52 extend along the upper beam 61. It extends. In the partition wall 21, the upper beam 61 extends along the partition line L, and the first roof unit 41 is installed on the upper beam 61. At the boundary between the first roof portion 31 and the second roof portion 32, the first roof unit 41 is supported from below by the lattice pillar 28 and the interposition pillar 29 via the upper beam 61, and the first roof unit 41. On the other hand, the second roof unit 42 is connected.

  The lattice pillar 28 and the interposition pillar 29 extend in the vertical direction between the foundation 11 and the upper beam 61. The lattice column 28 has a pair of vertical members 63 extending in the vertical direction, and a lattice 64 connecting the vertical members 63.

  As shown in FIGS. 6A and 6B, at the boundary between the first roof unit 41 and the second roof unit 42, the bundle of the first roof unit 41 on the vertical member 63 of the lattice pillar 28. 58 is mounted. Here, the width dimension of the upper flange of the upper beam 61 is made somewhat larger than the width dimension of the bundle 58, but in the width direction of the upper beam 61, each of the first roof unit 41 and the second roof unit 42. It is not so large that the bundles 58 can be placed side by side.

  The second roof unit 42 is connected to the bundle material 58 of the first roof unit 41. For this reason, even if the bundle material 58 of the second roof unit 42 is not placed on the upper beam 61, the upper beam 61 supports the second roof unit 42 from the lower side together with the first roof unit 41. Yes.

  In the short-side roof truss 52 of the second roof unit 42, the end portion of the upper chord material 55 protrudes toward the first roof unit 41 with respect to the bundle material 58, and the protruding portion is the bundle material of the first roof unit 41. 58. In this connection portion, the upper chord material 55 and the bundle material 58 are fixed with bolts or the like in a state where the side surfaces are in contact with each other. Further, at the boundary between the roof units 41 and 42, the height dimension of the bundle member 58 of the second roof unit 42 is made smaller than the height dimension of the bundle member 58 of the first roof unit 41, so that the first roof In the bundle material 58 of the unit 41, the portion where the upper chord material 55 of the second roof unit 42 is connected is below the portion where the upper chord material 55 of the first roof unit 41 is connected.

  In the long-side roof truss 51 of the first roof unit 41, the end portion of the lower chord material 56 protrudes to the second roof unit 42 side from the bundle material 58, and the protruding portion is the bundle material of the second roof unit 42. 58. In this connection portion, the lower chord material 56 and the bundle material 58 are fixed with bolts or the like in a state in which the side surfaces are in contact with each other. Here, in the 2nd roof unit 42, the lower end part of the bundle material 58 protrudes below rather than the lower chord material 56, and the lower chord material 56 of the 1st roof unit 41 is connected with this protrusion part. In this case, in the bundle material 58 of the second roof unit 42, the portion where the lower chord material 56 of the first roof unit 41 is connected is below the portion where the lower chord material 56 of the second roof unit 42 is connected. .

  In addition, in the connection part of the 1st roof unit 41 and the 2nd roof unit 42, between the upper chord material 55 and the lower chord material 56 of the 1st roof unit 41, the upper chord material 55 and the lower chord material of the 2nd roof unit 42 56 has entered.

  Returning to the description of FIG. 1, the roof 13 is provided with a toplight 71 for taking sunlight into the indoor space 18. The top light 71 is disposed on the first roof portion 31 and extends along the roof surface of the first roof portion 31. The top light 71 has a parallel portion 71a extending in parallel with the flange 14 along the width direction of the building 10, and an orthogonal portion 71b extending in a direction orthogonal to the parallel portion 71a. The parallel portions 71a are disposed in a portion near the second roof portion 32 in the building depth direction, and a pair of orthogonal portions 71b are provided with the parallel portion 71a interposed therebetween.

  The top light 71 is substantially U-shaped in plan view, and has a shape opened toward the downstream side of the water gradient in the first roof portion 31. Here, in the configuration in which the top light 71 is open toward the upstream side of the water gradient, the water flowing along the roof surface is above the parallel portion 71a between the pair of orthogonal portions 71b. There is concern about accumulation. On the other hand, in the present embodiment, the water flowing toward the upper side of the parallel portion 71a along the roof surface flows around the outside of the pair of orthogonal portions 71b and flows toward the downstream side. The water flowing on the roof surface between the portions 71 b flows from the open side of the top light 71 toward the flange portion 14 as it is toward the downstream side. Therefore, it is difficult for water to collect on the upper side of the top light 71.

  The parallel portion 71 a is spanned across the plurality of first roof units 41 in a state of straddling the boundary between the first roof units 41, and extends in the short direction of each first roof unit 41. The parallel portion 71 a is disposed at an intermediate position in the short direction of the first roof unit 41 and extends along the longitudinal direction of the first roof unit 41. In this case, the parallel portion 71 a is disposed between the pair of long-side roof trusses 51 in the first roof unit 41.

  In addition, the opening part for attaching the toplight 71 is formed in the roof surface material 44 of the 1st roof part 31, and the toplight 71 is the state fitted in the opening part, and the roof surface material 44 and the roof It is fixed to the trusses 51 and 52.

  As shown in FIG. 2A, the top light 71 is disposed above the sales space 18 a and extends along the merchandise display shelf 23 and the register counter 24. In the top light 71, the parallel part 71 a and one orthogonal part 71 b are arranged inside the sales floor of the commodity display shelf 23, and the other orthogonal part 71 b is arranged inside the sales counter 24. In this case, brightness is secured in the merchandise display shelf 23 and the register counter 24 by sunlight taken in through the top light 71.

  Next, the relationship between the sizes of the first roof unit 41 and the second roof unit 42 will be described. The first roof unit 41 and the second roof unit 42 have different height dimensions, but the length dimension in the longitudinal direction (longitudinal dimension) and the length dimension in the lateral direction (short dimension) are substantially the same. Has been. For example, the long dimension is 10 m and the short dimension is 2.3 m.

  In the present embodiment, the roof 13 has seven first roof units 41 and two second roof units 42. In this case, in the width direction of the building 10, the total length dimension of the seven first roof units 41 arranged in parallel and the total length dimension of the two second roof units 42 arranged in series are: The short dimension of the first roof unit 41 and the long dimension of the second roof unit 42 are set so as to be the same.

  Further, as shown in FIG. 5, in the first roof unit 41, the height dimension H1 on the downstream side 47b side is made smaller than the height dimension H2 on the upstream side 47a side, and the second roof unit 41 In 42, the height dimension H3 on the downstream side 47b side is made smaller than the height dimension H4 on the upstream side 47a side. Further, the height dimension H4 on the upstream side 47a side of the second roof unit 42 is the same as or smaller than the height dimension H1 on the downstream side 47b side of the first roof unit 41. For example, the height dimensions H1 and H4 are 0.5 m, and the height dimension H2 is 0.7 m. In this case, the height of each upper end at the boundary between the first roof unit 41 and the second roof unit 42 is 0.2 m.

  Then, the construction procedure of the building 10 is demonstrated.

  After constructing the foundation 11 at the construction site, the lattice pillar 28, the inter-column 29, the upper beam 61, etc. are transported from the factory to the construction site, and the building body 12 is constructed at the construction site. The roof units 41 and 42 are manufactured in advance at the factory, and the roof units 41 and 42 are transported from the factory to the construction site by a truck T or the like. The roof 13 is constructed by being installed on top and fixed to the building body 12. The truck T is preferably a large vehicle such as a 10t car.

  Here, a loading method when the roof units 41 and 42 are transported by the truck T will be described with reference to FIG. FIG. 7 is a view showing a state in which the roof units 41 and 42 are loaded on the truck T. 7A shows a view of the track T viewed from the side, and FIG. 7B shows a view of the track T viewed from the back.

  In the present embodiment, seven first roof units 41 and two second roof units 42 are transported from a factory to a building site by three trucks T. Three first roof units 41 are loaded on the loading platform T1 of the first and second trucks T, and one first roof unit 41 and two loading platforms T1 of the third truck T are loaded. The second roof unit 42 is loaded. In any truck T, the three roof units 41 and 42 are fixed to the loading platform in a state of being stacked vertically.

  As shown in FIGS. 7A and 7B, each truck T spans between a pair of vertical frames T2 arranged on the left and right sides of the loading space of the loading platform T1 and the pair of vertical frames T2. And a plurality of pairs of vertical frames T2 and horizontal frames T3 are arranged in the length direction of the track T. The horizontal frame T3 is divided into two upper and lower stages, and the horizontal frame T3 divides the loading space into three vertically, thereby forming three unit loading spaces S for loading the roof units 41 and 42 vertically. ing.

  The unit loading space S at the third stage (uppermost stage) is opened upward, but the height dimension of each unit loading space S at the first stage (lowermost stage) and the second stage is the loading platform T1 or The unit loading space S is defined by the horizontal frame T3, and has a size and shape that can accommodate the first roof unit 41.

  Specifically, in the unit loading space S of the first stage and the second stage, the height dimension of one end in the length direction of the track T is made smaller than the height dimension of the other end. The larger height dimension is larger than the height dimension H2 on the upstream side 47a side of the first roof unit 41, and the smaller height dimension is on the downstream side 47b side of the first roof unit 41. It is made larger than the height dimension H1. In this case, the first roof unit 41 can be stored in each of the three unit loading spaces S. As a result, the three first roof units 41 can be loaded on the loading platform T1 of the truck T. .

  Here, as described above, the height dimension H4 on the upstream side 47a side of the second roof unit 42 is the same as or smaller than the height dimension H1 on the downstream side 47b side of the first roof unit 41. Therefore, in the unit loading space S of the truck T, the second roof unit 42 can be stored instead of the first roof unit 41. As a result, one first roof is placed on the loading platform T1 of the truck T. It becomes possible to load the unit 41 and the two second roof units 42. In this case, since it is not necessary to change the height position of the horizontal frame T3 or the like when storing either the first roof unit 41 or the second roof unit 42 in the unit loading space S, the roof unit 41, The work burden when loading 42 can be reduced.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  Since the long sides of the first roof unit 41 and the short sides of the second roof unit 42 are arranged in series in the depth direction of the building 10, the long sides of the roof units 41 and 42 are arranged. Compared to the configuration in which the two are arranged in series, the total depth dimension of the roof units 41 and 42 can be set finely. Therefore, when building the roof 13 with the roof units 41 and 42, the freedom degree regarding the setting of the magnitude | size of the roof 13 in planar view can be raised.

  In addition, the first roof unit 41 and the second roof unit 42 are different in whether the inclination direction of the water gradient is the longitudinal direction or the short direction. Even if the long side portion 41 and the short side portion of the second roof unit 42 are mixed, the long side portion and the short side portion can be unified into the inclined side portion 46. In this case, it becomes possible to unify the inclination direction of the water gradient of the roof units 41 and 42 in the depth direction of the building 10, and thus the configuration related to the rain performance can be simplified.

  Therefore, the freedom degree regarding arrangement | positioning of the roof units 41 and 42 can be raised, and also the roof 13 which has a water gradient can be constructed | assembled suitably.

  Since the adjacent first roof units 41 are connected to each other at the same height, the inclined sides 46 can form a continuous surface on the roof 13. In this case, it is possible to simplify the rain at the boundary between the first roof units 41. Moreover, since the height dimension and the water gradient of each first roof unit 41 are set to be the same, it is possible to reduce the work burden and the cost burden when manufacturing these first roof units 41.

  Similarly to the first roof unit 41, the adjacent second roof units 42 can form continuous surfaces on the roof 13 because the inclined side portions 46 are connected at the same height position. In this case, it is possible to simplify the rain at the boundary between the second roof units 42. Moreover, since the height dimension and the water gradient of each second roof unit 42 are set to be the same, it is possible to reduce the work burden and the cost burden when manufacturing these second roof units 42.

  Since the upstream side portions 47a of the roof units 41 and 42 are arranged at the boundary portions with the roof units 41 and 42, water flows toward the side opposite to the boundary portions. In this case, it is not necessary to provide a drainage facility such as a dredger at the boundary between the first roof unit 41 and the second roof unit 42, and it is possible to prevent the configuration of the rain performance at the boundary between the roof units 41 and 42 from becoming complicated. it can.

  In the connection part of the 1st roof unit 41 and the 2nd roof unit 42, since the upper chord material 55 of the 2nd roof unit 42 is being fixed to the bundle material 58 of the 1st roof unit 41, the 1st roof unit 41 of If the bundle 58 is installed on the upper beam 61, both the roof units 41 and 42 are formed by the upper beam 61 even if the bundle 58 of the second roof unit 42 is not installed on the upper beam 61. Can be supported. Therefore, it is not necessary to provide a dedicated housing for supporting the bundle material 58 of the second roof unit 42, and it is not necessary to excessively increase the width dimension of the upper flange of the upper beam 61. Can be reduced.

  Since the lower chord material 56 of the second roof unit 42 is fixed to the bundle of the first roof unit 41, the second roof unit 42 can be firmly fixed to the first roof unit 41.

  Since the height dimension of the upstream end of the water gradient in the second roof unit 42 is the same as or smaller than the height dimension of the downstream end of the water gradient in the first roof unit 41, the track T If the first roof unit 41 can be stored in the unit loading space S of the loading platform T1, the second roof unit 42 can also be stored in the unit loading space S. For this reason, even when any of the first roof unit 41 and the second roof unit 42 is loaded on the truck T, it is not necessary to change the partition mode of the loading space. Therefore, it is possible to reduce the work burden when loading the roof units 41 and 42 on the truck T.

  Since the boundary between the sales space 18a and the backyard space 18b in the building body 12 and the boundary between the first roof unit 41 and the second roof unit 42 in the roof 13 are arranged vertically, the roof units 41 and 42 It is not necessary to arrange the pillars 28 and 29 supporting the boundary portion in the sales space 18a. For this reason, the sales space 18a can be a large space where the columns 28 and 29 do not exist.

  In the sales space 18a, since sunlight is taken in through the top light 71, energy saving can be realized with respect to the lighting of the sales space 18a. Further, the toplight 71 is in a state of being spanned across the plurality of first roof units 41, but the roof surface portions of the first roof units 41 are arranged at the same height position, so that the first roof Also in the boundary portion of the unit 41, the waterproofing work performed on the attachment portion of the top light 71 can be facilitated.

[Other Embodiments]
The present invention is not limited to the description of the above embodiment, and may be implemented as follows, for example.

  (1) At the boundary between the first roof unit 41 and the second roof unit 42, the upstream side 47 a of the first roof unit 41 is arranged at a position higher than the upstream side 47 a of the second roof unit 42. It does not have to be. For example, as shown in FIG. 8A, the upstream side 47 a of the first roof unit 41 may be disposed at a position lower than the upstream side 47 a of the second roof unit 42. In this configuration, unlike the above embodiment, the upper chord material 55 and the lower chord material 56 of the first roof unit 41 are connected to the bundle material 58 of the second roof unit 42 at the boundary between the roof units 41 and 42. It is preferable.

  Moreover, as shown in FIG.8 (b), the upstream edge part 47a of the 1st roof unit 41 and the upstream edge part 47a of the 2nd roof unit 42 may be arrange | positioned in the same height position. In this case, it is preferable that the upstream side portions 47a of the roof units 41 and 42 are connected to each other.

  (2) The 1st roof unit 41 and the 2nd roof unit 42 are installed in the direction by which the upstream edge part 47a of one roof unit and the downstream edge part 47b of the other roof unit are arrange | positioned in those boundary parts. May be. For example, as shown in FIG. 8C, the roof units 41 and 42 have an upstream side 47 a of the first roof unit 41 and a downstream side 47 b of the second roof unit 42 arranged at the boundary between them. It may be installed in the direction. Moreover, as shown in FIG.8 (d), the roof units 41 and 42 arrange | position the downstream edge part 47b of the 1st roof unit 41, and the upstream edge part 47a of the 2nd roof unit 42 in those boundary parts. It may be installed in the direction.

  8C and 8D, the upstream side 47a and the downstream side 47b are connected to each other at the same height at the boundary between the roof units 41 and 42, and these roof units are connected to each other. The same surface is formed by the roof surfaces 41 and 42. The height levels of the upstream side 47a and the downstream side 47b may be different.

  (3) The 1st roof unit 41 and the 2nd roof unit 42 may be installed in the direction by which each downstream edge part 47b is arrange | positioned in those boundary parts.

  (4) In the above-described embodiment, the plurality of first roof units 41 are arranged in parallel, but the plurality of first roof units 41 may be arranged in series. Moreover, although the several 2nd roof unit 42 was arrange | positioned in series, the several 2nd roof unit 42 may be arrange | positioned in parallel.

  For example, as shown to Fig.9 (a), it is set as the structure by which the some 1st roof unit 41 is installed in series, and the some 2nd roof unit 42 is installed in parallel. In this configuration, the inclined side portions 46 are arranged at the boundary between the first roof unit 41 and the second roof unit 42, and the inclined side portions 46 are connected to each other at the same height position. Moreover, in this structure, even if the 1st roof part 31 is formed by the some 2nd roof unit 42 arranged in parallel, and the 2nd roof part 32 is formed by the some 1st roof unit 41 arranged in series. Good.

  In the portion where the plurality of second roof units 42 are arranged in parallel, the respective upstream side portions 47a may be arranged at the boundary portion of the second roof unit 42, and the respective downstream side portions 47b are arranged. The upstream side 47a and the downstream side 47b may be arranged.

  For example, in the configuration in which the boundary portion between the adjacent second roof units 42 is arranged on the extended line of the boundary portion between the first roof units 41, as shown in FIG. The upstream side portions 47a are arranged at the boundary portions of the two, and the upstream side portions 47a are connected to each other at the same height position.

  In this case, a plurality of second roof units 42 are arranged in parallel along the inclined side portion 46 (long side portion) of one first roof unit 41. At the boundary between the second roof units 42, an upstream side 47a of one second roof unit 42 and a downstream side 47b of the other second roof unit 42 are arranged, and these upstream sides 47a. And the downstream side 47b are connected to each other at the same height position. Each roof surface of the second roof unit 42 forms the same surface, and the roof surface of the roof 13 formed by the same surface is opposite to the extended line of the boundary portion between the first roof units 41. It has a water gradient that slopes downward on the side.

  In addition, in the boundary part of the adjacent 2nd roof unit 42, each non-inclined side part 47 may be arrange | positioned in a different height position.

  (5) In the above embodiment, the plurality of first roof units 41 and the plurality of second roof units 42 are each arranged in a row, but at least one roof unit may be arranged in a plurality of rows. For example, in the depth direction of the building 10, a plurality of second roof units 42 are installed on both the front side and the back side across the first roof unit 41.

  (6) In the above embodiment, the lower chord material 56 of the second roof unit 42 is arranged above the lower chord material 56 of the first roof unit 41 in the connection portion of the roof units 41 and 42. The lower chord material 41 of 41 may be disposed above the lower chord material 56 of the second roof unit 42.

  (7) In the connection part of the 1st roof unit 41 and the 2nd roof unit 42, each bundle material 58 of these roof units 41 and 42 may be laid on the upper beam 61, respectively. As a configuration in which each bundle member 58 is placed on the upper beam 61, a configuration in which the upper beam 61 for placing each bundle member 58 is individually provided, or an upper flange of the upper beam 61 is provided. The structure which has the width dimension which can mount each bundle material 58 collectively is mentioned. However, there is a concern that if the width dimension of the upper flange of the upper beam 61 is excessively increased, the upper flange is likely to be deformed even though the bundle members 58 of the roof units 41 and 42 can be placed. The Therefore, it is preferable to increase the width dimension of the upper flange within an allowable range in which the support strength of the upper beam 61 can be secured.

  (8) The roof units 41 and 42 may not have the roof trusses 51 and 52. For example, even if the support span of the roof units 41 and 42 by the lattice pillars 28 and the inter-columns 29 is extended by using a beam member having sufficient strength as a cross member that supports the roof surface member 44, the roof unit 41, It can avoid that the intermediate part of 42 bends below.

  (9) The roof units 41 and 42 may not have the roof surface material 44. In this case, after the roof units 41 and 42 are installed on the building body 12 at the building site, the roof surface material 44 is attached to the roof units 41 and 42 collectively or individually.

  (10) In the said embodiment, although the 1st roof unit 41 was arrange | positioned at the building front side, the 2nd roof unit may be arrange | positioned at the building front side. Further, the first roof unit 41 and the second roof unit 42 may be arranged side by side in the width direction of the building 10. In this case, the freedom degree regarding the setting of the size of the roof 13 is increased by the roof units 41 and 42 in the width direction of the building 10. In this case, it is preferable that the sales floor space 18 a and the backyard space 18 b are arranged side by side in the width direction of the building 10.

  (11) In the above embodiment, the toplight 71 is provided on the first roof portion 31, but the toplight 71 may be provided on the second roof portion 32. In this case, sunlight can be taken into the backyard space 18b through the toplight 71.

  (12) In the above embodiment, the toplight 71 is provided in a state of being spanned across the plurality of first roof units 41, but the toplight 71 is provided individually on the roof surface portion of each first roof unit 41. It may be done. For example, the top light 71 is configured to extend along the longitudinal direction of each first roof unit 41. In this case, since it is not necessary to provide the parallel portion 71a in the toplight 71, the portion extending in the direction intersecting the water gradient in the toplight 71 is minimized. Thereby, the structure in which water does not easily accumulate on the upper side of the top light 71 can be realized.

  DESCRIPTION OF SYMBOLS 10 ... Building, 12 ... Building body, 13 ... Roof, 18 ... Indoor space, 18a ... Sales space, 18b ... Backyard space, 28 ... Lattice pillar as pillar, 29 ... Staircase pillar, 41 ... First roof unit 42 ... Second roof unit, 46 ... Inclined side portion, 47 ... Non-inclined side portion, 47a ... Upstream side portion, 47b ... Downstream side portion, 55 ... Upper chord material as inclined cross member, 56 ... As lower cross member Lower chord material, 58 ... Bundle material, 71 ... Top light.

Claims (7)

It is a building used as a store, and it is applied to a building having a sales space for selling products as an indoor space,
It has a substantially rectangular parallelepiped roof unit provided side by side on the building body, and the roof structure of the building forms a roof by connecting these roof units to each other,
As the roof unit, there is a first roof unit whose longitudinal direction is a water gradient inclination direction, and a second roof unit whose short direction is a water gradient inclination direction,
The inclined side portion inclined along the water gradient is a long side portion in the roof surface portion of the first roof unit, and is a short side portion in the roof surface portion of the second roof unit,
A non-inclined side portion extending in a direction orthogonal to the water gradient is a short side portion in the roof surface portion of the first roof unit, and a long side portion in the roof surface portion of the second roof unit,
Wherein the first roof unit and the second roof unit is installed in an orientation in which the non-inclined edges portions of the boundary Niso respectively thereof roof unit is arranged,
The plurality of first roof units are installed side by side with their long side portions adjacent to each other, and the second roof unit has its long side portion as a short side portion of the plurality of first roof units. It is installed side by side next to
The plurality of first roof units are disposed above the sales space,
A roof structure for a building, wherein the plurality of first roof units are provided with a top light for taking sunlight into the sales space in a state of being spanned over the first roof units . The building roof structure according to claim 1 , wherein the plurality of second roof units are arranged side by side with their short sides adjacent to each other. The first roof unit and the second roof unit are installed in a direction in which the inclined upper end side of the first roof unit and the inclined upper end side of the second roof unit are arranged at the boundary between the roof units. The roof structure of a building according to claim 2 , wherein Each roof unit has an inclined cross member extending along the inclined direction, and a bundle member that supports the inclined cross member from below,
In each of the roof units, of the pair of non-inclined sides, the one arranged at the upper end of the water gradient is the upstream side, and the one arranged at the lower end of the water gradient is the downstream side. And
At the boundary portion between the first roof unit and the second roof unit, the height positions of the upstream side portions are different, and the height position of the upstream side portion of the roof units is lower. 4. The building roof structure according to claim 3 , wherein the inclined cross member of the roof unit is connected to the bundle member of the roof unit having a higher height of the upstream side portion. Each roof unit has a lower cross member connected to the lower end of the bundle,
At the boundary between the first roof unit and the second roof unit, among the roof units, the lower side member of the roof unit with the higher height position of the upstream side is the upstream side. The roof structure of a building according to claim 4 , wherein the roof structure is connected to the bundle member of the roof unit having a lower height position. The first roof unit and the second roof unit have substantially the same longitudinal dimension and short dimension,
The height of the upstream side portion side of the second roof unit according to claim 4, characterized in that it is less about the same or than the height dimension of the downstream side portion side of the first roof unit or 5. The roof structure of the building according to 5 . As ya space, it is applied to the building and the shop space arranged on the facade side, and a back yard space disposed on the back side of the shop space,
On the upper side of the sales space, a plurality of the first roof units are installed side by side with their long sides adjacent to each other, and on the upper side of the backyard space, the second roof unit is the first roof unit. It is installed in a direction perpendicular to the roof unit,
The said building main body WHEREIN: The pillar which supports the said 1st roof unit and the said 2nd roof unit is arranged in multiple numbers along the boundary part of the said store space and the said backyard space, It is characterized by the above-mentioned. The roof structure of a building according to any one of 1 to 6 .

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