JP2014051792A - Roof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof structure which can be easily constructed under an elevated railroad or an elevated road and has fire-resistant performance.SOLUTION: An elevated structure 200 mainly comprises a plurality of bridge girders 201, beams 211 and piers 212. A roof material 140 is suspended from bottom faces 202 of either the bridge girders 201 or the beams 211 through hanging bolts 110. External walls 223 are installed from the bottom faces 202 of the bridge girders 201 to a floor slab 225. Fire-resistant walls 224 are installed from the roof material 140 to the floor slab 225. The external walls 223 and the fire-resistant walls 224 have waterproof and fire-resistant performance. A habitable room 230 is configured by the roof material 140, the external wall 223, fire-resistant walls 224 and the floor slab 225. A facility for business operation is installed inside the habitable room 230.

Description

  The present invention relates to a roof structure that is suspended from a housing and has fire resistance.

Patent document 1 discloses the roof which has a fireproof structure. Such a roof mainly includes a plurality of vertical members, a fire prevention plate that closes the vertical members from above, and a deck plate that closes the vertical members from below. A heat insulating material is filled between the fire prevention plate and the deck plate. A fireproof structure is formed by placing this roof on a beam.
Patent Document 2 discloses a suspended ceiling panel having fire resistance. The suspended ceiling panel mainly includes a grid member that is suspended from a building via a wire hanger, and a decorative ceiling panel that is attached to the grid member.

JP 2001-55800 A Special Table 2007-530831

  Business facilities such as stores and lodging facilities may be built under the elevated railways and roads. Such a business facility must have a fire-resistant structure defined by the Building Standards Act and other laws and regulations, and a fire-resistant structure is formed by providing a fire-resistant ceiling and wall under an elevated structure.

  For example, when considering the construction of a business facility using Patent Document 1, a method of forming a frame made of a ramen structure or the like under an overpass with a steel frame and placing a roof on the frame is conceivable. However, unlike a normal construction site that is opened vertically upward, the bridge has a bridge girder vertically above and a pillar in the horizontal direction under the elevated, so the work space is narrow. For this reason, the heavy machinery that can be used is also limited, and the time for building the frame increases, the construction period becomes longer, and the construction cost increases.

  On the other hand, consider constructing a business facility using Patent Document 2. Since the viaduct is made of concrete, steel frame, etc., it has many gaps. For this reason, water and garbage enter the space under the overpass. However, since the decorative ceiling panel is created assuming that it is provided indoors, it is not made to withstand water and dust, and needs to be replaced because it deteriorates early. In addition, since the Building Standard Law does not require fireproof performance for the decorative ceiling panel, there is no decorative ceiling panel having the fireproof performance required by the Building Standard Law for roof materials.

  The present invention has been made in view of these problems, and an object of the present invention is to obtain a roof structure that can be easily formed under an overpass such as a railway or a road and has fire resistance.

  The roof structure according to the present invention is a roof structure in which a roof material is suspended from a casing located vertically above, a suspension member having a casing side member fixed to the casing, and a member opposite to the casing side member The roof material is provided with a roof material attached to the roof material-side member, and the roof material includes a fire-resistant member having fire resistance against a fire from vertically below.

  The roof material preferably includes a folded plate formed by bending a metal plate-like member and a fireproof member provided on a surface of the folded plate that faces vertically downward.

  It is preferable that the roofing material includes a mountain portion that protrudes vertically upward and a valley portion that connects the mountain portions.

  It is preferable that the roof material includes a plurality of folded plates formed by bending a metal plate-like member, and a mountain portion is overlapped in a vertical direction at a connection portion between the folded plates. This ensures the fire resistance and waterproof performance of the roofing material.

  The roofing material includes a plurality of folded plates formed by bending a metal plate-like member and a cap used for a connecting portion between the folded plates, and the mountain portions are overlapped in the vertical direction at the connecting portion, and are stacked in the vertical direction. A cap may be put on the formed mountain portion from vertically above. This prevents the connection between the folded plates from expanding due to thermal expansion, ensuring fire resistance and improving the waterproof performance of the roofing material.

  The roof structure may be provided across a plurality of housings, and the roof material may include an expansion that connects the folded plates. Even when a plurality of casings are displaced in different directions, the expansion absorbs the displacement of the casing and prevents the folded plate from being damaged.

  It is preferable that the roof material includes a mountain portion that protrudes vertically upward, and the height of the mountain portion is 66 mm or more. Thereby, the roof structure can satisfy the fire resistance required by the Building Standard Law and other laws and regulations.

  The roofing material includes a plurality of folded plates formed by bending a metal plate-like member, and the thickness of the folded plates is preferably 0.6 mm or more. Thereby, the roof structure can satisfy the fire resistance required by the Building Standard Law and other laws and regulations.

  It is preferable that the roof material includes a mountain portion protruding vertically upward, and a distance between the mountain portion and the mountain portion is 200 mm or more and 250 mm or less. Thereby, the roof structure can satisfy the fire resistance required by the Building Standard Law and other laws and regulations.

  It is preferable that a roofing material is provided with the peak part which protrudes toward perpendicular | vertical upper direction, and the trough part which connects peak parts, and a trough part is provided with a rib. Even when the folded plate is thermally expanded due to the heat of the fire, it is possible to prevent the folded plate from being damaged due to the stress concentrated on the connecting portion between the folded plates due to the deformation of the iron plate near the rib.

  It is preferable that the frame-side member has a bar shape, and the roof material-side member includes a support member that supports the roof material, and a connection member that is connected to the frame-side member and the support member.

  The roof material side member has a support member that supports the roof material, and a connecting member connected to the housing side member and the support member, the support member has a bar screw that penetrates the roof material, You may be comprised so that a decorative ceiling can be suspended. The decorative ceiling can be easily suspended without using a special method.

  ADVANTAGE OF THE INVENTION According to this invention, the roof structure which can be easily formed under an overpass, such as a railway and a road, and has fire resistance performance is obtained.

It is the schematic which provided the roof structure by 1st Embodiment under the overpass. It is a perspective view of a roof structure. It is an end view of the roof structure in the III-III cross section of FIG. It is a partial end view of the connection part of folded plates. It is the partial end view which looked at the connection part of folded plates from the longitudinal direction of angle iron.

  Hereinafter, the roof structure 100 according to the present invention will be described with reference to the drawings.

  FIG. 1 is a view in which a roof structure 100 is provided under an elevated structure. In FIG. 1, the structure of the roof structure 100 is simplified for explanation. The elevated 200 is mainly composed of a plurality of bridge girders 201, beams 211, and piers 212. The beam 211 supports the bridge girder 201 and the bridge pier 212 extending from the ground supports the beam 211. The joint 203 joins the bridge girders 201 so that the bridge girders 201 can be freely displaced. The bridge girder 201, the beam 211, and the pier 212 are made of concrete. Concrete is permeable to water and joint 203 is permeable to water and dust. Therefore, water and dust enter under the elevated 200.

  The roof material 140 is suspended from the bottom face 202 of the bridge girder 201 or the beam 211 via the suspension bolt 110. That is, the roof material 140 is suspended from the bridge girder 201 and the beam 211 (frame) positioned vertically upward (upward in the direction of gravity). Details of the roofing material 140 will be described later. The decorative ceiling 222 is suspended from the bottom surface of the roof material 140 via the hanging fitting 221. Since the Building Standard Act does not require the fireproof performance of the decorative ceiling 222, the decorative ceiling 222 does not have the fireproof performance specified by the Building Standard Act.

  An outer wall 223 is provided from the bottom surface 202 of the bridge girder 201 to the floor slab 225, and a fire wall 224 is provided from the roof material 140 to the floor slab 225. The outer wall 223 and the fire wall 224 have waterproof performance and fire resistance performance. The roofing material 140, the outer wall 223, the fire wall 224, and the floor slab 225 form a living room 230, and a business facility is provided inside the living room 230.

  Next, the roof structure 100 will be described with reference to FIG. In FIG. 2, the structure of the roof material 140 is simplified for the sake of explanation.

  The roof structure 100 is mainly composed of a suspension bolt 110, an angle steel 120, a sheet stat 130, and a roof material 140. The suspension bolt 110, the angle steel 120, and the seat stat 130 form a suspension member, and the suspension member has a housing side member and a roof material side member. And the suspension bolt 110 comprises a frame side member, and the angle iron 120 and the sheet | seat stat 130 comprise a roof material side member. Moreover, the roof material side member has a support member and a connection member, the sheet stat 130 forms the support member, and the angle iron 120 forms the connection member.

  The upper end of the suspension bolt 110 is attached to the bridge girder 201, and the angle steel 120 is fixed to the lower end of the suspension bolt 110 via hardware such as a bolt, a nut, and a shape steel. The angle steel 120 supports the roof material 140 via the sheet stat 130. The suspension bolt 110 suspends the angle steel 120 such that the angle steel 120 adjacent in the width direction faces the opposite direction.

  The suspension bolt 110 has an end portion in which a male screw is cut, and is fixed to the bridge girder 201 by screwing the end portion into a driving-type anchor that is driven into the bottom surface 202 of the bridge girder 201. An angle steel 120 is welded to the end opposite to the end fixed to the bridge girder 201.

  The angle steel 120 is an equilateral angle steel, and has a shape in which two steel plates (horizontal ribs 121 and vertical ribs 122) having a plate shape of 50 mm in width are joined to each other at right angles on their long sides. The suspension bolt 110 is fixed to the vertical rib 122 via hardware such as bolts and nuts, and suspends the angle steel 120 such that the angle steel 120 adjacent in the width direction faces the opposite direction. That is, when the angle steel 120 attached to the suspension bolt 110 is viewed from the longitudinal direction, the horizontal ribs 121 extending in the horizontal direction extend in opposite directions.

  The seat stat 130 mainly includes a fitting portion 131 and a bolt 132. The fitting portion 131 has an opening, and the horizontal rib 121 is sandwiched and fixed in the opening. Since the height of the opening is lower than the thickness of the horizontal rib 121, the seat stat 130 does not shift with respect to the horizontal rib 121 below a predetermined force. The bolt 132 is attached to the first end-side peak 161, the second end-side peak 151, and the intermediate peak 166 of the roof material 140. The first end-side peak 161, the second end-side peak 151, and the intermediate peak 166 will be described later.

  Since the adjacent angle irons 120 in the width direction face the opposite direction, the opening of the seat stat 130 attached to the adjacent angle steel 120 also faces the opposite direction. Therefore, when the roof material 140 is thermally expanded, the sheet stats 130 attached to the adjacent angle steels 120 are displaced from the angle steels 120 in directions opposite to each other with respect to the horizontal direction. Due to the displacement of the sheet stat 130, the elongation of the roof material 140 due to thermal expansion is absorbed. Thereby, the roofing material 140 is not destroyed.

  Next, the roof material 140 will be described in detail with reference to FIGS. 3 and 4. The roof material 140 includes a folded plate 150 formed by bending a metal plate-shaped member, a fire-resistant member 170 provided on a surface of the folded plate 150 that faces vertically downward, a cap 180, and an expansion 190.

  The folded plate 150, the cap 180, and the expansion 190 are made of a galbarium steel plate having a thickness of 0.6 mm, and the refractory member 170 is a non-combustible material having a thickness of 5 mm including glass fiber, for example, super felton, or a thickness of 4 mm. It is made of a non-combustible material such as a non-combustible material such as Funenace, and exhibits fire resistance against a fire from below.

  The folded plate 150 includes a first end-side peak 161, a plurality of intermediate peaks 166, a second end-side peak 151, and a plurality of valleys 171 connecting the peaks.

  The first end-side mountain portion 161 includes a first back portion 152 that forms a first narrow angle with respect to the valley portion 171, and a first horizontal portion 153 that forms a first narrow angle with the first back portion 152. And a first connection portion 154 that forms a first narrow angle with respect to the first horizontal portion 153. The first horizontal portion 153 and the valley portion 171 are parallel to each other, and the distance h1 (the height of the first end side mountain portion 161) between the first horizontal portion 153 and the valley portion 171 is 66 mm. The tip of the first connection portion 154 is slightly bent toward the inside of the first end portion side peak portion 161.

  The second end portion mountain portion 151 includes a second back portion 162 that forms a first narrow angle with respect to the valley portion 171, and a second horizontal portion 163 that forms a first narrow angle with the second back portion 162. And a second connecting portion 164 that forms a first narrow angle with respect to the second horizontal portion 163. The second horizontal portion 163 and the valley portion 171 are parallel, and the distance h1 (the height of the second end side peak portion 151) between the second horizontal portion 163 and the valley portion 171 is 66 mm. The length l2 from the center in the width direction of the second horizontal portion 163 to the junction between the second back portion 162 and the valley portion 171 is 56 mm, which is half the width of the second end side peak portion 151. . The length from the center in the width direction of the first horizontal portion 153 to the junction between the first back portion 152 and the valley portion 171 is also 56 mm, which is half the width of the first end side mountain portion 161. is there.

  The intermediate mountain portion 166 includes a third back portion 167 that forms a first narrow angle with respect to the valley portion 171, a third horizontal portion 168 that forms a first narrow angle with the third back portion 167, and a third It is mainly composed of a third connecting portion 169 that forms a first narrow angle with respect to the horizontal portion 168. The third horizontal portion 168 and the valley portion 171 are parallel, and the distance h1 (the height of the intermediate mountain portion 166) between the third horizontal portion 168 and the valley portion 171 is 66 mm. The length l2 from the center in the width direction of the third horizontal portion 168 to the junction between the third back portion 167 and the valley portion 171 is also 56 mm, which is half the width of the intermediate peak portion 166.

  The trough 171 includes two ribs 172. The two ribs form a recess having a height of 1 to 2 mm in the valley 171. When the roof material 140 is thermally expanded, the recess formed by the two ribs is deformed to absorb the elongation of the roof material 140 due to the thermal expansion. Thereby, the roofing material 140 is not destroyed. The length 11 of the valley 171 with respect to the horizontal direction, that is, the first end-side peak 161 and the intermediate peak 166, the second end-side peak 151 and the intermediate peak 166, the intermediate peak 166 and the intermediate peak The intervals of 166 are equal to 238 mm.

  The cap 180 has a fourth horizontal portion 181 that is parallel to the valley portion 171 and a fourth connection portion 182 that is connected to the long-side end of the fourth horizontal portion 181 so as to form a first narrow angle. And a fifth connection portion 183 connected to the long side end of the fourth horizontal portion 181 opposite to the fourth connection portion 182 so as to form a first narrow angle. The The tips of the fourth connection portion 182 and the fifth connection portion 183 are slightly bent toward the inside of the cap 180.

  The expansion 190 mainly includes a lower expansion 191 and an upper expansion 192 that covers the lower expansion 191 from vertically above.

  The lower expansion 191 includes a fifth horizontal part 194 that is parallel to the valley part 171, a sixth connection part 193 that forms a first narrow angle with respect to the fifth horizontal part 194, and a fifth horizontal part 1st joint part 195 which makes a right angle with respect to 194, and stands | starts up perpendicularly | vertically is comprised mainly. The tip of the sixth connection portion 193 is slightly bent toward the fifth horizontal portion 194. The sixth connection portion 193 covers the second end side mountain portion 151 from above in the vertical direction. The first joint portion 195 has an inverted J shape, and the long side of the inverted J shape rises upward in the vertical direction from the fifth horizontal portion 194. The width 13 of the first joint portion 195, that is, the width of the inverted J shape is 30 mm, and the length h2 of the folded portion 196 of the first joint portion 195 is 15 mm.

  The upper expansion 192 includes a sixth horizontal portion 198 that is parallel to the valley 171, a seventh connection portion 197 that forms a first narrow angle with respect to the sixth horizontal portion 198, and a sixth horizontal portion 198. And a second joint part 199 that rises vertically upward at a right angle to the main body. The tip of the seventh connection portion 197 is slightly bent toward the sixth horizontal portion 198. The seventh connection portion 197 covers the first end portion mountain portion 161 from above in the vertical direction. The second joint portion 199 has an inverted J shape, and one side of the inverted J shape rises upward in the vertical direction from the sixth horizontal portion 198. The width 13 + 14 + 15 of the second joint part 199, that is, the reverse J-shaped width is 130 mm, and the length h3 of the folded portion 189 of the second joint part 199 is 30 mm. The sixth horizontal portion 198 is at the same position in the vertical direction as the fifth horizontal portion 194, and the distance h4 from the farthest portion in the upper expansion 192 is 50 mm. The distance 15 between the folded portion 196 and the folded portion 189 is 50 mm, and the distance 14 between the lower expansion 191 and the sixth horizontal portion 198 is 50 mm. That is, the expansion 190 can absorb a displacement of 50 mm with respect to the horizontal direction.

  Since the plurality of bridge girders 201 vibrate separately, the interval between the bridge girders 201 changes. Therefore, the roof structure 100 provided so as to straddle different bridge girders 201 will be damaged unless the change in the interval between the bridge girders 201 is absorbed. However, the roof structure 100 prevents damage by absorbing the change in the interval between the bridge beams 201 by the function of the expansion 190.

  Further, the upper expansion 192 having an inverted J shape covers the lower expansion 191 having an inverted J shape from above in the vertical direction, so that water and dust can be prevented from entering the roof material vertically below.

  4 and 5, in the connection part between the folded plates, the first end side peak part 161 covers the second end side peak part 151 from above in the vertical direction, and the first end part side is covered. The cap 161 is covered with the cap 161 from above in the vertical direction. That is, the cap 180, the first end-side peak 161, and the second end-side peak 151 are stacked in this order from vertically upward to downward. The first end-side peak 161, the second end-side peak 151, and the cap 180 are perforated in the vertical direction, and the bolt 132 passes through the hole. The bolt 132 passes through holes provided in the fourth horizontal portion 181, the first horizontal portion 153, and the second horizontal portion 163 in this order, and is provided below the second horizontal portion 163 in the vertical direction. The nut 134 is screwed and fixed. A receiver 133 is fixed near the head of the bolt 132. The receiving tool 133 and the nut 134 sandwich the first end side peak 161, the second end side peak 151, and the cap 180. As a result, the roof material 140 is fixed to the seat stat 130. Since the joining means between the lower expansion 191 and the first horizontal portion 153 and the joining means between the upper expansion 192 and the second horizontal portion 163 are also the same, description thereof will be omitted.

  By overlapping the cap 180, the first end-side peak 161, and the second end-side peak 151 in the vertical direction, the liquid from vertically above permeates the roof material 140 and leaks downward. Is prevented, and the waterproof property with respect to the liquid from the vertically upward direction is comprised.

  When the folded plate thermally expands due to the heat of the fire, stress concentrates on the portion where the first end side peak portion 161 and the second end side peak portion 151 overlap, and the first end side peak portion 161 may be separated from the second end-side peak 151. However, the cap 180 overlaps the first end-side peak 161 and the second end-side peak 161 with the first end-side peak 161 and the second end-side peak 151 from above in the vertical direction. The movement of the part-side mountain 151 is regulated in the horizontal direction and the vertical direction to prevent them from separating from each other.

  Referring to FIG. 4, the bolt (bar screw) 132 has a tip that has a thickness of a first end side peak 161, a second end side peak 151, a cap 180, a nut 134, and a fireproof member 170. Even if it penetrates in the direction, it has a length that still protrudes. A decorative ceiling 222 is attached to the protruding portion. More specifically, a long nut 301 is attached to a portion protruding from the nut 134 and the fireproof member 170. Then, the ceiling suspension bolt 302 is screwed into the long nut 301, and the ceiling brace 303 is attached to the tip of the ceiling suspension bolt 302. A decorative ceiling board 304 is attached to the ceiling brace 303. The decorative ceiling 222 can be easily suspended without using a special method.

  According to this embodiment, it is possible to easily construct a fire-resistant roof under an overpass such as a railway or a road. For example, in the past, when building a business facility by building a fireproof structure frame under an elevated structure, when changing the shape and floor area of the business facility, the shape and floor area of the new business facility may be It was restricted. Therefore, there was a case where the existing frame had to be dismantled. However, since the roof structure 100 according to the present invention constructs a fire-resistant roof over the entire surface under the overpass, the shape and floor area of the business facility can be changed only by changing the partition.

  In addition, the building standards law and other laws and regulations have been changed to make existing facilities in the station ineligible. Even if it is necessary to do this, it is possible to construct a fireproof structure simply by hanging the roof structure 100 without constructing a frame. The construction period required to suspend the roof structure 100 is much shorter than the construction period for constructing the frame. Therefore, a fireproof structure can be constructed in a short construction period and at low cost.

  Moreover, since the roof structure 100 has waterproof performance and fireproof performance, it is possible to take measures against water leakage and fire by simply suspending the roof structure 100. Therefore, other waterproof and fireproof construction is not required.

  By providing the expansion 190, the roof structure 100 can be provided under the plurality of bridge girders 201.

  The angle steel 120 may be an unequal angle angle steel instead of an equal angle angle steel, or a shape steel having another shape such as H steel.

  Further, the angle steel 120 may be fixed to the suspension bolt 110 by welding instead of being fixed via a bolt and a nut.

  The material constituting the folded plate 150, the cap 180, and the expansion 190 is not limited to a 0.6 mm thick galvalume steel plate, but a galvalume steel plate having a thickness of 0.6 mm or more, or a material having fire resistance defined in the Building Standards Act If it is. This ensures fire resistance as stipulated in the Building Standard Law.

  The refractory member 170 is not limited to the above-described material, and may be a material having fire resistance performance as defined in the Building Standard Law and other laws.

  The height of the 1st end part side peak part 161, the 2nd end part side peak part 151, and the intermediate peak part 166 should just be 66 mm or more. This will ensure fire resistance as stipulated in the Building Standards Act and other laws.

  The interval between the first end side peak 161 and the intermediate peak 166, the second end side peak 151 and the intermediate peak 166, and the interval between the intermediate peak 166 and the intermediate peak 166 may not be 238 mm.

  Note that the expansion 190 may not be provided when the number of housings is one.

  The bridge girder 201, the beam 211, and the pier 212 may be made of steel or the like instead of concrete.

DESCRIPTION OF SYMBOLS 100 Roof structure 110 Suspension bolt 120 Angle steel 121 Horizontal rib 122 Vertical rib 130 Sheet stat 131 Fitting part 133 Receiving part 134 Nut 140 Roof material 150 Folded plate 151 2nd edge part mountain part 152 1st back part 153 1st Horizontal portion 154 First connection portion 161 First end side mountain portion 162 Second back portion 163 Second horizontal portion 164 Second connection portion 166 Intermediate mountain portion 167 Third back portion 168 Third horizontal portion 169 3rd connection part 170 Refractory member 171 Valley part 172 Rib 180 Cap 181 4th horizontal part 182 4th connection part 183 5th connection part 190 Expansion 191 Lower side expansion 192 Upper side expansion 193 6th connection part 194 Fifth horizontal portion 195 First joint portion 197 Seventh connection portion 98 sixth horizontal portion 199 second joint portion 200 elevated 201 girder 203 joint 211 Beam 212 piers 221 hanger 222 cosmetic ceiling 223 outer wall 224 firewall 225 Floor Slab 230 room 301 length nut 303 ceiling brace 304 Cosmetic ceiling plate

Claims (12)

A roof structure in which a roofing material is suspended from a vertical frame.
A suspension member having a housing side member fixed to the housing;
A roof material attached to a roof material side member which is a member on the opposite side of the housing side member,
The roof material is a roof structure provided with a fire-resistant member having fire resistance against a fire from below vertically.   The roof structure according to claim 1, wherein the roof material includes a folded plate formed by bending a metal plate-like member, and a fireproof member provided on a surface facing the vertically lower side of the folded plate.   The roof structure according to claim 1 or 2, wherein the roof material includes a mountain portion protruding vertically upward and a valley portion connecting the mountain portions.   The roof structure according to any one of claims 1 to 3, wherein the roof material includes a plurality of folded plates formed by bending a metal plate-like member, and a mountain portion is overlapped in a vertical direction at a connection portion between the folded plates.   The roofing material includes a plurality of folded plates formed by bending a metal plate-like member and a cap used for a connecting portion between the folded plates, and the mountain portions are overlapped in the vertical direction at the connecting portion, and are stacked in the vertical direction. The roof structure according to any one of claims 1 to 4, wherein the cap is covered from above in a vertical direction.   The roof structure according to any one of claims 1 to 5, wherein the roof structure is provided across a plurality of housings, and the roof material includes an expansion for connecting the folded plates.   The roof structure according to any one of claims 1 to 6, wherein the roof material includes a mountain portion projecting vertically upward, and the height of the mountain portion is 66 mm or more.   The roof structure according to any one of claims 1 to 7, wherein the roof material includes a plurality of folded plates formed by bending a metal plate-like member, and the thickness of the folded plates is 0.8 mm or more.   The roof structure according to any one of claims 1 to 8, wherein the roof material includes a mountain portion projecting vertically upward, and a distance between the mountain portion and the mountain portion is 238 mm or more.   The roof structure according to any one of claims 1 to 9, wherein the roof material includes a mountain portion protruding vertically upward and a valley portion connecting the mountain portions, and the valley portion includes a rib.   The frame-side member has a bar shape, and the roof material-side member includes a support member that supports the roof material, and a connection member connected to the frame-side member and the support member. Roof structure. The roof material side member has a support member that supports the roof material, and a connecting member connected to the housing side member and the support member,
The support member has a bar screw that penetrates the roofing material,
The roof structure according to claim 1, wherein the bar screw can suspend the decorative ceiling.

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