building

Abstract

To provide an architectural structure airtight structural body capable of forming an airtight layer continuous in a direction in which a beam extends in a region where the beam and a column crosses each other as well, and an architectural structure provided with the same.SOLUTION: An architectural structure 1 has a beam 10, a column 20, a first wall 11, a second wall 12, a third wall 13, a first airtight connection part 50, a second airtight connection part 60, and a third airtight connection part 70. The first airtight connection part 50 vertically connects a first beam part 101 and an airtight member 112 of the first wall 11 so as to maintain airtightness in the architectural structure 1 inward and outward. The second airtight connection part 60 vertically connects a second beam part 102 and the airtight member 112 so as to maintain the airtightness. The third airtight connection part 70 horizontally connects the first airtight connection part 50 and the second airtight connection part 60 inside the column 20, and vertically connects a column upper beam part 103 of the beam 10 and an airtight member 133 of the third wall 13 so as to maintain the airtightness.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an airtight structure for a building and a building equipped with the same. [Background technology]

[0002] BACKGROUND ART Conventionally, buildings have been known that have exterior walls, beams that extend horizontally along the interior of the exterior walls, and airtight structures that ensure airtightness in both the inside and outside directions around the beams.

[0003] Patent Document 1 discloses a building having, as the airtight structure, a pair of upper and lower airtight sheets extending vertically just below and just above beams (girs) made of steel frame material, and a pair of upper and lower airtight members connecting the pair of airtight sheets to the beams so as to maintain airtightness. In such a configuration, the beams function as part of the airtight structure, ensuring an airtight line between the pair of upper and lower airtight sheets, and ensuring airtightness between the outside and inside of the beams. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-241128 Summary of the Invention [Problem to be solved by the invention]

[0005] In buildings, there are areas where horizontally extending beams and vertically extending columns intersect, as described above. For this reason, the airtight structure described in Patent Document 1 has a problem in that the airtight sheet and airtight member are discontinued around the columns, making it impossible to ensure a continuous airtight layer along the direction in which the beams extend.

[0006] The present invention has been made to solve the above-mentioned problems, and aims to provide an airtight structure for a building that is capable of forming a continuous airtight layer along the direction in which the beams extend, even in areas where the beams and columns intersect, and a building equipped with the same. [Means for solving the problem]

[0007] The present invention provides an airtight structure for a building, the building having a column, a first wall portion, a second wall portion, a third wall portion, and a beam, and the airtight structure is provided with a first airtight connection portion, a second airtight connection portion, and a third airtight connection portion. The column has a plurality of side surfaces and a top surface portion. The first wall portion extends in a first direction from one of the side surfaces of the column in a plan view and includes a first airtight layer that has airtightness in the interior and exterior directions of the building. The second wall portion extends in a second direction from the other of the side surfaces of the column in a plan view and includes a second airtight layer that has airtightness in the interior and exterior directions of the building. The third wall portion is disposed between the first wall portion and the second wall portion in the horizontal direction inside the column and includes a third airtight layer that has airtightness in the interior and exterior directions of the building. The beam includes a column-upper beam portion fixed to the upper surface portion of the column, a first beam portion disposed above the first wall portion and extending from the column-upper beam portion in the first direction, and a second beam portion disposed above the second wall portion and extending from the column-upper beam portion in the second direction. The first airtight connection portion extends along the first direction toward the side surface portion of the column between the first beam portion and the first wall portion in the vertical direction, and vertically connects the first beam portion and the first airtight layer so as to maintain airtightness in the interior and exterior directions of the building. The second airtight connection portion extends along the second direction toward the side surface portion of the column between the second beam portion and the second wall portion in the vertical direction, and vertically connects the second beam portion and the second airtight layer so as to maintain airtightness in the interior and exterior directions of the building. The third airtight connection portion connects the first airtight connection portion and the second airtight connection portion horizontally inside the column and vertically connects the column-top beam portion and the third airtight layer so as to maintain airtightness in both the inside and outside directions of the building.

[0008] According to this configuration, at one end of the column, the first airtight connection portion vertically connects the first beam portion and the first airtight layer of the first wall portion to maintain airtightness in the interior and exterior directions of the building. Meanwhile, at the other end of the column, the second airtight connection portion vertically connects the second beam portion and the second airtight layer of the second wall portion to maintain airtightness in the interior and exterior directions of the building. Furthermore, around the column, the third airtight connection portion connects the first airtight connection portion and the second airtight connection portion, and vertically connects the column-top beam portion and the third airtight layer to maintain airtightness in the interior and exterior directions of the building. Therefore, even in a configuration where a column is interposed between the first airtight layer and the second airtight layer, multiple airtight layers can be connected in the vertical and horizontal directions. As a result, a continuous airtight layer can be formed even in the area where the beam and column intersect.

[0009] In the above configuration, the third airtight connection portion may have a horizontal connection portion that connects the first airtight connection portion and the second airtight connection portion horizontally along the column, an upper connection portion that extends upward from the horizontal connection portion and is connected to the column upper beam portion, and a lower connection portion that extends downward from the horizontal connection portion and is connected to the third airtight layer.

[0010] According to this configuration, the horizontal connecting portion can connect two airtight layers along the horizontal direction, and the upper connecting portion and the lower connecting portion can connect multiple airtight layers along the vertical direction.

[0011] In the above configuration, the first airtight connection portion when viewed along the first direction and the second airtight connection portion when viewed along the second direction may each have a recess that opens toward the inside of the building, and the first airtight connection portion and the second airtight connection portion may each have a blocking portion that blocks the recess from the side portion of the column and is connected to the horizontal connection portion of the third airtight connection portion.

[0012] According to this configuration, the first airtight connection part and the second airtight connection part have recesses, so that connection members such as heat insulating material, braces, etc. can be placed in the recesses. Furthermore, even when the first airtight connection part and the second airtight connection part have the recesses described above, the first airtight connection part and the second airtight connection part can be connected while maintaining airtightness by the third airtight connection part and each blocking part.

[0013] In the above configuration, the blocking portion may have a connected portion that is arranged to overlap an end of the horizontal connecting portion and is connected to the end.

[0014] According to this configuration, since each blocking portion has a portion to be connected, the horizontal connection portion of the third airtight connection portion can be easily connected to the first and second airtight connection portions.

[0015] In the above configuration, the beam has a web facing the inside and outside of the building, and a pair of upper and lower flanges extending in the inside and outside directions from the upper and lower ends of the web, respectively, and at least one of the first airtight connection portion and the second airtight connection portion is positioned outside the inner end of the lower flange of the pair of upper and lower flanges of the beam when viewed from the first direction or the second direction, and has a vertical plate portion extending in the vertical direction, an upper plate portion extending from the upper end of the vertical plate portion toward the inside of the building and positioned so as to overlap the lower flange, and a lower plate portion extending from the lower end of the vertical plate portion toward the inside of the building and connected to the first airtight layer or the second airtight layer to maintain airtightness, and the blocking portion may be positioned so as to block the recess defined by the upper plate portion, the vertical plate portion, and the lower plate portion from the column side.

[0016] According to this configuration, the recess can be formed by the upper plate, the vertical plate, and the lower plate of at least one of the airtight connection parts. In addition, since the upper plate is arranged to overlap the lower flange of the beam, airtightness can be easily maintained between the beam and the at least one of the airtight connection parts.

[0017] In the above configuration, the upper connection portion may be an upper airtight tape that connects the horizontal connection portion and the column-upper beam portion so as to maintain airtightness, and the lower connection portion may be a lower airtight tape that connects the horizontal connection portion and the third airtight layer so as to maintain airtightness.

[0018] According to this configuration, the column-mounted beam portion and the third airtight layer can be easily connected to the third airtight connecting portion by each airtight tape.

[0019] The present invention provides a building comprising: a column including a plurality of side surfaces and a top surface; a first wall portion extending in a first direction from one of the side surfaces of the column in a plan view and including a first airtight layer having airtightness in the interior and exterior directions of the building; a second wall portion extending in a second direction from the other of the side surfaces of the column in a plan view and including a second airtight layer having airtightness in the interior and exterior directions of the building; a third wall portion disposed inside the column between the first wall surface and the second wall surface in the horizontal direction and including a third airtight layer having airtightness in the interior and exterior directions of the building; a column-upright beam portion fixed to the top surface of the column; a beam including a first beam portion disposed above the first wall surface and extending from the column-upright beam portion in the first direction; and a second beam portion disposed above the second wall surface and extending from the column-upright beam portion in the second direction; and any of the airtight structures described above.

[0020] According to this configuration, it is possible to form a continuous airtight layer along the direction in which the beams extend, even in areas in a building where beams and columns intersect. [Effects of the Invention]

[0021] According to the present invention, an airtight structure for a building is provided that is capable of forming a continuous airtight layer along the direction in which the beams extend, even in areas where the beams and columns intersect, and a building equipped with the same. [Brief explanation of the drawings]

[0022] [Figure 1]FIG. 2 is a horizontal cross-sectional view of the periphery of a column of a building according to the first embodiment of the present invention. [Figure 2] FIG. 2 is a rear view of the periphery of a pillar of a building according to the first embodiment of the present invention. [Figure 3] 3 is a cross-sectional side view of the periphery of a beam of a building according to the first embodiment of the present invention, taken along the line III-III in FIG. 1. FIG. [Figure 4] 4 is a cross-sectional side view of the periphery of a column of a building according to the first embodiment of the present invention, taken along the line IV-IV in FIG. 1. FIG. [Figure 5] 1 is a perspective view of a first airtight connection portion, a second airtight connection portion, and a third airtight connection portion of a building according to a first embodiment of the present invention. FIG. [Figure 6] FIG. 10 is a horizontal cross-sectional view of the periphery of a column of a building according to a second embodiment of the present invention. [Figure 7] FIG. 10 is a side view of the periphery of a pillar of a building according to a second embodiment of the present invention. [Figure 8] FIG. 10 is a rear view of the periphery of a pillar of a building according to a second embodiment of the present invention. [Figure 9] FIG. 10 is a perspective view of a first airtight connection portion, a second airtight connection portion, and a third airtight connection portion of a building according to a second embodiment of the present invention. [Figure 10] FIG. 10 is a horizontal cross-sectional view of the periphery of a column of a building according to a third embodiment of the present invention. [Figure 11] FIG. 10 is a rear view of the periphery of a pillar of a building according to a third embodiment of the present invention. [Figure 12] FIG. 10 is a side view of the periphery of a pillar of a building according to a third embodiment of the present invention. [Figure 13] FIG. 10 is a perspective view of a first airtight connection portion, a second airtight connection portion, and a third airtight connection portion of a building according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] First Embodiment Hereinafter, a building 1 according to each embodiment of the present invention will be described with reference to the drawings. FIGS. 1 and 2 are a horizontal cross-sectional view and a rear view of the area around a column 20 of a building 1 according to a first embodiment of the present invention. FIG. 3 is a side cross-sectional view of the area around a beam 10 of a building 1 according to this embodiment. FIG. 4 is a side cross-sectional view of the area around a column 20 of a building 1 according to this embodiment. FIG. 3 corresponds to the cross-sectional view taken along arrows III-III in FIG. 1, and FIG. 4 corresponds to the cross-sectional view taken along arrows IV-IV in FIG. 1. Note that each figure illustrates the front-to-back, left-to-right, and up-and-down directions, as well as the inside and outside of the building, based on the viewpoint of a worker located inside the building 1. These directions do not limit the building 1 according to the present invention.

[0024] The building 1 has a beam 10, a column 20, and exterior wall panels 30 and 31. The beam 10 constitutes part of the structural frame of the building 1 and extends in the left-right direction (horizontal direction) in each drawing. The beam 10 is made of H-shaped steel and has a web 10A, a lower flange 10B, and an upper flange 10C (a pair of upper and lower flanges) (FIG. 3). The web 10A faces the front-to-rear direction (inside-outside direction) of the building 1. The upper flange 10C and the lower flange 10B extend in the front-to-rear direction from the upper and lower ends of the web 10A, respectively.

[0025] The columns 20, together with the beams 10, constitute part of the structural frame of the building 1 and extend in the vertical direction. The columns 20 are arranged at multiple positions at predetermined intervals. The columns 20 include a side portion 20S (FIG. 1) and a top portion 20T (FIG. 4). The side portion 20S includes the front, rear, left, and right side surfaces of the column 20. The top portion 20T corresponds to the top surface of the column 20. The column 20 also includes a column main body 201, a plate 202, a column insulation material 203, and an outer insulation material 204. The column main body 201 is the main body of the column 20 and is made of H-shaped steel as shown in FIG. 1. The plate 202 is a plate-like member fixed to the upper end of the column main body 201 and serves to connect the column 20 and the beams 10. As shown by the dashed line in FIG. 1, the plate 202 has an H-shape that encompasses the column main body 201 in a plan view. In other embodiments, the plate 202 may have a square (rectangular) shape in plan view. The side surface portion 20S described above is also the side surface of the plate 202, and the top surface portion 20T is also the top surface of the plate 202. The column insulation material 203 is an insulation material disposed in the space surrounded by the column main body 201 below the plate 202. The outer insulation material 204 is an insulation material disposed along the left-right direction on the outside of the column main body 201. The outer insulation material 204 is extended so as to extend left and right from the column 20, and only a portion of it is shown in FIG. 1.

[0026] As shown in Fig. 3, exterior wall panels 30 and 31 are members that constitute the exterior wall of the building 1, and the exterior wall panel 30 is fixed to the lower flange 10B by bolts V via support members 301. Similarly, the exterior wall panel 31 is fixed to the upper flange 10C by bolts V via support members 311.

[0027] In the region of the building 1 shown in FIGS. 1 to 4, the beams 10 are arranged so as to pass over the columns 20. In other words, the beams 10 have a first beam portion 101, a second beam portion 102, and a column-up beam portion 103. As shown in FIG. 1, the column-up beam portion 103 is a portion fixed to the upper surface portion 20T (plate 202) of the column 20. The first beam portion 101 is a portion extending from the column-up beam portion 103 in a first direction (leftward in FIG. 1) and is disposed above a first wall portion 11, which will be described later. The second beam portion 102 is a portion extending from the column-up beam portion 103 in a second direction (rightward in FIG. 1) and is disposed above a second wall portion 12, which will be described later. Note that some or all of the first beam portion 101, the second beam portion 102, and the column-up beam portion 103 may be formed from an integral member, or may be independent members.

[0028] The building 1 further has a first wall portion 11, a second wall portion 12, and a third wall portion 13. The first wall portion 11 is a wall portion disposed below the first beam portion 101, and is disposed so as to extend in the left-right direction (first direction) from one side surface portion of the column 20 in a plan view. The second wall portion 12 is a wall portion disposed below the second beam portion 102, and is disposed so as to extend in the left-right direction (second direction) from the other side surface portion of the column 20 in a plan view. In this embodiment, the extending direction of the first wall portion 11 and the extending direction of the second wall portion 12 are the same. The third wall portion 13 is a wall portion disposed inside the column 20, between the first wall portion 11 and the second wall portion 12 in the left-right direction (horizontal direction).

[0029] Referring to FIG. 3, the first wall portion 11 has a heat insulating material 111, an airtight member 112, a frame body 113, a heat insulating material 114, and an airtight member 115.

[0030] The insulating material 111 is made up of a plurality of insulating material pieces, and is provided between two adjacent columns 20 and around each column 20. The insulating material pieces that make up the insulating material 111 are hard insulating material made of extruded polystyrene or the like (hereinafter simply referred to as "hard insulating material"). The insulating material pieces that make up the insulating material 111 may also be soft fibrous insulating material made of cellulose fiber, rock wool, glass wool or the like (hereinafter simply referred to as "soft insulating material"). Furthermore, the insulating material pieces that make up the insulating material 111 may be a combination of hard insulating material and soft insulating material.

[0031] The airtight member 112 (first airtight layer) is fixed to the outer surface of the frame body 113 while covering the heat insulating material 111 from the inside. The upper end of the airtight member 112 is sandwiched between the inner surfaces of the upper ends of the frame body 113 and the heat insulating material 111 and a horizontal member at the top of the frame body 113. The airtight member 112 is a resin sheet, and has airtightness in the inside and outside directions of the building 1.

[0032] The frame body 113 is fixed to the beam 10 and floorboard materials (not shown) via fixing members (not shown). Specifically, the frame body 113 has a pair of horizontal members that extend in the left-right direction and face each other in the up-down direction, and a pair of vertical members that extend in the up-down direction and face each other in the left-right direction so as to connect the right ends and left ends of the horizontal members.

[0033] The heat insulating material 114 is fitted inside the frame 113. The heat insulating material 114 is a soft heat insulating material. The heat insulating material 114 may be a hard heat insulating material, or both hard and soft heat insulating materials may be used.

[0034] The airtight member 115 is fixed to the inner surface of the frame 113 in a state in which it covers the heat insulating material 114 from the inside. The airtight member 115 is a resin sheet, and has airtightness in the inside-outside direction of the building 1.

[0035] Furthermore, the building 1 has a beam member 40 and an airtight member 116 (FIG. 3).

[0036] The beam member 40 is supported by the beam 10 on the beam 10. Examples of the beam member 40 include a roof and flooring materials for an upper floor. In this embodiment, flooring materials for an upper floor are used as an example of the beam member 40. Specifically, the beam member 40 is a plate-shaped member made of ALC (Autoclaved Lightweight Aerated Concrete) or the like.

[0037] The airtight member 116 is disposed above the airtight member 115 so as to be continuous with the airtight member 115. The airtight member 116 is a resin sheet, and has airtightness in the inside and outside directions of the building 1. The airtight member 116 may also be sprayed urethane foam. The airtight member 116 is directly connected to the airtight member 115 in a state in which airtightness is ensured.

[0038] The second wall portion 12 (FIG. 1) has a structure similar to that of the first wall portion 11 described above. For this reason, in FIG. 3, the reference numerals of the members constituting the second wall portion 12 are shown in parentheses. That is, the second wall portion 12 has a heat insulating material 121, an airtight member 122, a frame body 123, a heat insulating material 124, and an airtight member 125. The airtight member 122 (second airtight layer) and the airtight member 125 provide airtightness in the inside and outside directions of the building 1. The building 1 also has an airtight member 126 (FIG. 3) corresponding to the airtight member 116. The structure, material, etc. of each member are similar to those of the first wall portion 11.

[0039] 4, the third wall portion 13 located inside the pillar 20 has a heat insulating material 131, a base material 132, an airtight member 133, and an airtight member 134. The building 1 further has an airtight member 135.

[0040] The heat insulating material 131 is disposed below the base material 132. The heat insulating material 131 is a soft heat insulating material. The heat insulating material 131 may be a hard heat insulating material, or both hard and soft heat insulating materials may be used. The base material 132 is a wooden base and extends in the left-right direction behind the pillar 20.

[0041] The airtight member 133 (third airtight layer) is arranged so as to be sandwiched between the heat insulating material 131 and the base material 132 and the pillar 20. The airtight member 133 is also arranged so as to cover the front surface of the third wall portion 13. The airtight member 133 is a resin sheet, and has airtightness in the inside and outside directions of the building 1.

[0042] The airtight member 134 is a resin sheet similar to the heat insulating material 131. The airtight member 134 is arranged so as to cover the rear side of the third wall portion 13. The airtight member 134 may be made of sprayed urethane foam.

[0043] The airtight member 135 is disposed above the airtight member 134 so as to be continuous with the airtight member 134. The airtight member 135 is directly connected to the airtight member 134 in a state in which airtightness is ensured. The airtight member 135 is a resin sheet. The airtight member 135 may also be sprayed urethane foam.

[0044] As shown in FIGS. 3 and 4, other heat insulating materials are also fitted in front and behind the beam 10.

[0045] In this embodiment, as shown in Fig. 3, an outer airtight line S1 and an inner airtight line S2 are formed in the area where the first wall 11 or the second wall 12 is arranged. On the other hand, as shown in Fig. 4, an outer airtight line S3 and an inner airtight line S4 are formed in the area where the third wall 13 is arranged. In addition, a heat insulating material is provided between each airtight line. In this way, by forming two levels of airtight lines, inside and outside, it is possible to ensure airtightness around the beam 10 and each wall.

[0046] For example, in the summer of the building 1, the outer airtight line S1 can prevent humid outside air from entering the space between the outer airtight line S1 and the inner airtight line S2. As a result, even if the inner airtight line S2 is cooled by air conditioning, condensation can be prevented from occurring on the exterior surface of the inner airtight line S2. Furthermore, the insulating material interposed between the outer airtight line S1 and the inner airtight line S2 prevents the outer airtight line S1 from being cooled by air conditioning on the indoor side. Therefore, in the summer, condensation can be prevented from occurring from the first wall portion 11 (second wall portion 12) to the beam 10, and deterioration of the insulating material on the interior due to condensation can be prevented.

[0047] On the other hand, in winter, the inner airtight line S2 can prevent humid air from entering the space between the inner airtight line S2 and the outer airtight line S1 from inside the room. Also, the insulating materials on the inside and outside of the beam 10 prevent the inner airtight line S2 from being cooled by the low-temperature outside air. Therefore, in winter, it is possible to prevent condensation from occurring from the first wall portion 11 (second wall portion 12) to the beam 10, and also to prevent deterioration of the surrounding insulating materials due to condensation.

[0048] In cold regions, however, the problem of minute amounts of humidity present between the inner and outer airtight lines being cooled by the outside air and causing condensation can be a problem, but in the building 1, the cooling of the outer airtight line S1 can be suppressed by the insulation material outside the outer airtight line S1, so condensation between the inner and outer airtight lines can also be effectively suppressed. The above-mentioned effects are similar for the outer airtight line S3 and the inner airtight line S4 in Figure 4.

[0049] As shown in FIG. 3, the outer airtight line S1 is formed to overlap the beam 10. This causes the beam 10 to interfere with the column 20 at the intersection, making it difficult to continuously connect the outer airtight line S1 on the first wall 11 side with the outer airtight line S1 on the second wall 12 side in the left-right direction. To solve this problem, the present embodiment provides the building 1 with a first airtight connection 50, a second airtight connection 60, and a third airtight connection 70. These airtight connections constitute the airtight structure of the present invention. This airtight structure also has the function of preventing condensation.

[0050] FIG. 5 is a perspective view of the first airtight connection part 50, the second airtight connection part 60, and the third airtight connection part 70 of the building 1 according to this embodiment.

[0051] 1 to 3, the first airtight connection portion 50 extends in the left-right direction (first direction) toward the side surface portion 20S of the column 20 between the first beam portion 101 and the first wall portion 11 in the up-down direction, and vertically connects the first beam portion 101 and the airtight member 112 together to maintain airtightness in the interior and exterior directions of the building 1. The first airtight connection portion 50, together with the beam 10 and the airtight member 112, forms an outer airtight line S1 on the first wall portion 11 side. The second airtight connection portion 60 extends in the left-right direction (second direction) toward the side surface portion 20S of the column 20 between the second beam portion 102 and the second wall portion 12 in the up-down direction, and vertically connects the second beam portion 102 and the airtight member 112 together to maintain airtightness in the interior and exterior directions of the building 1. The second airtight connection part 60, together with the beam 10 and the airtight member 122, constitutes an outer airtight line S1 on the second wall part 12 side. Furthermore, the third airtight connection part 70 (Figs. 1, 2, 4) connects the first airtight connection part 50 and the second airtight connection part 60 on the left and right sides along the column 20 and around the column 20, and also connects the column-up beam part 103 and the airtight member 133 on the top and bottom sides, so as to maintain airtightness in the inside and outside directions of the building 1.

[0052] Referring to FIG. 5, the first airtight connection portion 50 has a first airtight main body portion 51, a first support portion 52, and a column-facing portion 53. When viewed in the left-right direction, the first airtight main body portion 51 has a U-shape that opens toward the inside of the building 1. The first airtight main body portion 51 has a vertical plate portion 51A, an upper plate portion 51B, and a lower plate portion 51C. The upper plate portion 51B is arranged to overlap the lower flange 10B of a pair of upper and lower flanges of the beam 10 (FIG. 3). When viewed in the left-right direction, the vertical plate portion 51A is arranged outside the building 1 relative to the inner end of the lower flange 10B and extends in the up-down direction. In this embodiment, the upper plate portion 51B is arranged directly below the web 10A (FIG. 3). The lower plate portion 51C extends from the lower end of the upper plate portion 51B toward the inside of the building 1, and is connected to the airtight member 112 so as to maintain airtightness. In this embodiment, a first support portion 52 is fixed to the lower surface of the lower plate portion 51C along the left-right direction, and the lower plate portion 51C and the airtight member 112 are connected via the first support portion 52 (FIG. 3).

[0053] The column facing portion 53 is integrally formed with the first airtight main body portion 51. In this embodiment, the first airtight main body portion 51 and the column facing portion 53 are formed by bending a single steel plate. The column facing portion 53 has a closing portion 53A and a connected portion 53B. The closing portion 53A is a rectangular portion extending from the right end of the vertical plate portion 51A and faces the left side surface portion 20S ( FIG. 1 ) of the column 20. The closing portion 53A is arranged so as to close the recess 50S of the first airtight connection portion 50 defined by the vertical plate portion 51A, the upper plate portion 51B, and the lower plate portion 51C from the column 20 side (right side). The connected portion 53B extends from the rear end of the closing portion 53A along the rear side surface portion 20S of the column 20 and is arranged so as to overlap the left end of the airtight connection plate 701. The left end of the airtight connecting plate 701 and the connected portion 53B are adhered to each other with double-sided tape (not shown). The surfaces of the blocking portion 53A and the connected portion 53B facing the pillar 20 are also adhered to the side surface portion 20S of the pillar 20 with double-sided tape.

[0054] 5, the second airtight connection part 60 has a second airtight main body part 61, a second support part 62, and a column-facing part 63. When viewed in the left-right direction, the second airtight main body part 61 has a U-shape that opens toward the inside of the building 1. The second airtight main body part 61 has a vertical plate part 61A, an upper plate part 61B, and a lower plate part 61C. The shapes and materials of the second airtight main body part 61 and the second support part 62 of the second airtight connection part 60 are the same as those of the first airtight main body part 51 and the first support part 52 of the first airtight connection part 50.

[0055] Like the column facing part 53, the column facing part 63 is integrally formed with the second airtight main body part 61. That is, the second airtight main body part 61 and the column facing part 63 are formed by bending a single steel plate. The column facing part 63 has a closing part 63A and a connected part 63B. The closing part 63A is a rectangular part extending from the left end part of the vertical plate part 61A and faces the right side surface part 20S ( FIG. 1 ) of the column 20. The closing part 63A is arranged so as to close the recess 60S of the second airtight connection part 60 defined by the vertical plate part 61A, the upper plate part 61B, and the lower plate part 61C from the column 20 side (left side). The connected part 63B extends from the rear end part of the closing part 63A along the rear side surface part 20S of the column 20 and is arranged so as to overlap the right end part of the airtight connection plate 701. The right end of the airtight connecting plate 701 and the connected portion 63B are adhered to each other with double-sided tape (not shown). In addition, the surfaces of the closing portion 63A and the connected portion 63B facing the pillar 20 are also adhered to the side surface portion 20S of the pillar 20 with double-sided tape.

[0056] In this embodiment, the first airtight connection part 50 and the second airtight connection part 60 are made of metal plates, and the airtightness thereof allows stable maintenance of airtightness in the vertical and horizontal directions inside the building 1. These airtight connection parts may also be made of resin plates or the like.

[0057] The third airtight connection portion 70 has an airtight connection plate 701 (connection member), an upper airtight tape 702 (upper connection portion), and a lower airtight tape 703 (lower connection portion).

[0058] The airtight connecting plate 701 is a rectangular plate that extends laterally when viewed from the front-to-rear direction. In this embodiment, the airtight connecting plate 701 is made of an iron plate. However, the airtight connecting plate 701 may also be made of a resin plate or the like.

[0059] The upper airtight tape 702 connects the airtight connection plate 701 and the column-upper beam portion 103 so as to maintain airtightness (FIG. 4).

[0060] The lower airtight tape 703 connects the airtight connecting plate 701 and the airtight member 133 so as to maintain airtightness (FIG. 4).

[0061] With the above-described configuration, the airtight connection plate 701 extends left and right along the rear side surface portion 20S of the pillar 20, and connects the pair of blocking portions 53A, 63A of the first airtight connection portion 50 and the second airtight connection portion 60 to each other along the left and right direction.

[0062] The airtight connecting plate 701 constitutes the horizontal connecting portion of the present invention. The horizontal connecting portion connects the first airtight connecting portion 50 and the second airtight connecting portion 60 in the horizontal direction so as to bypass the column 20. The upper airtight tape 702 described above extends upward from the horizontal connecting portion and is connected to the column-upper beam portion 103. The lower airtight tape 703 extends downward from the horizontal connecting portion and is connected to the airtight member 133.

[0063] As described above, in this embodiment, at one end (left side) of the column 20, the first airtight connection part 50 vertically connects the first beam part 101 to the airtight member 112 (first airtight layer) of the first wall part 11 so as to maintain airtightness in the inside and outside directions of the building 1. Meanwhile, at the other end (right side) of the column 20, the second airtight connection part 60 vertically connects the second wall part 12 to the airtight member 122 (second airtight layer) of the second wall part 12 so as to maintain airtightness in the inside and outside directions of the building 1. Furthermore, around the column 20, the third airtight connection part 70 horizontally connects the first airtight connection part 50 to the second airtight connection part 60 while bypassing the column 20 so as to maintain airtightness in the inside and outside directions of the building 1, and vertically connects the column-upper beam part 103 to the airtight member 133 (third airtight layer). Therefore, even in a configuration in which a pillar 20 is interposed between the airtight member 112 and the airtight member 122 as shown in Figure 1, multiple airtight layers can be reliably connected in the vertical and horizontal directions. As a result, it is possible to form a continuous airtight layer that includes the area where the beam 10 and the pillar 20 intersect. In other words, the two outer airtight lines S1 (Figure 3) formed on both sides of the pillar 20 and the outer airtight line S3 formed along the pillar 20 can be connected in the horizontal direction to form a continuous airtight surface.

[0064] Furthermore, in this embodiment, the third airtight connection portion 70 has an airtight connection plate 701 (horizontal connection portion), an upper airtight tape 702 (upper connection portion), and a lower airtight tape 703 (lower connection portion). With this configuration, the airtight connection plate 701 can connect two airtight layers along the horizontal direction, and the upper airtight tape 702 and the lower airtight tape 703 can connect multiple airtight layers along the vertical direction.

[0065] 3 and 5, in this embodiment, the first airtight connection part 50 and the second airtight connection part 60 have recesses 50S (recesses 60S), which allows the area of ​​each airtight layer located below the beam 10 to be shifted toward the outside of the building 1. As a result, it becomes possible to place other insulating materials in the recesses 50S, thereby improving the thermal insulation performance of the building 1. Furthermore, even when the first airtight connection part 50 and the second airtight connection part 60 have the recesses described above, the first airtight connection part 50 and the second airtight connection part 60 can be connected to each other while maintaining airtightness by the column-facing parts 53, 63 (blocking parts) and the airtight connection plate 701 (connecting member).

[0066] In particular, in this embodiment, as shown in Figure 5, the column-facing portions 53, 63 are formed integrally with the first airtight connection portion 50 and the second airtight connection portion 60, and each airtight connection portion 50, 60 has a connected portion 53B, 63B, respectively, so that the first airtight connection portion 50 and the second airtight connection portion 60 can be easily connected along the column 20 by the airtight connection plate 701.

[0067] In this case, in this embodiment, since the airtight connecting plate 701 is made of an airtight metal plate, the first airtight connection part 50 and the second airtight connection part 60 can be easily connected while maintaining airtightness. Similarly, the airtightness of the upper airtight tape 702 and the lower airtight tape 703 allows the third airtight connection part 70 to connect the column-upper beam part 103 (FIG. 1) and the airtight member 133 (third airtight layer) while maintaining airtightness in the up-down direction.

[0068] In this embodiment, the beam 10 has a web 10A, a lower flange 10B, and an upper flange 10C, and can maintain airtightness in the interior and exterior directions of the building 1. The first airtight connection portion 50 and the second airtight connection portion 60 each have an upper plate portion 51B (61B), a vertical plate portion 51A (61A), and a lower plate portion 51C (61C). With this configuration, the upper plate portion 51B, the vertical plate portion 51A, and the lower plate portion 51C can form a recess 50S (recess 60S). As shown in FIG. 3, the upper plate portion 51B is positioned so as to overlap the lower flange 10B of the beam 10, which makes it easy to maintain airtightness between the beam 10 and the first airtight connection portion 50. The above-described structure may be included in at least one of the first airtight connection portion 50 and the second airtight connection portion 60.

[0069] 3, a recess 50S is formed below the bottom flange 10B of the beam 10, so that a brace (not shown) or the like can be fixed to the bottom flange 10B via the recess 50S to maintain the strength of the building 1. It is also possible to place a heat insulating material in the recess 50S.

[0070] Second Embodiment Next, a second embodiment of the present invention will be described. Fig. 6 is a horizontal cross-sectional view of the periphery of a pillar of a building according to this embodiment. Figs. 7 and 8 are a side view and a rear view of the periphery of a pillar of a building according to this embodiment. Fig. 9 is a perspective view of a first airtight connection part 50, a second airtight connection part 60, and a third airtight connection part 70 of a building according to this embodiment. Note that in Figs. 6 to 9, components having the same functions and structures as those in the previous embodiment are assigned the same reference numerals as in Figs. 1 to 5. Furthermore, in this embodiment, differences from the first embodiment will be mainly described. The same applies to a third embodiment described below.

[0071] As shown in FIGS. 6 to 9, this embodiment differs from the previous first embodiment in that the column 20 is arranged at a protruding corner of a wall of the building 1. As shown in FIG. 6, the beam 10 has an L-shape. The column-upper beam portion 103 of the beam 10 is arranged above the column 20, and the first beam portion 101 is connected to the column-upper beam portion 103 so as to extend rearward from the rear side surface portion 20S of the column 20 in a plan view. On the other hand, the second beam portion 102 is connected to the column-upper beam portion 103 so as to extend rightward from the right side surface portion 20S of the column 20 in a plan view. As in FIG. 1, a first wall portion 11, a second wall portion 12, and a third wall portion 13 are arranged below these beams 10 (the first beam portion 101, the second beam portion 102, and the column-upper beam portion 103).

[0072] A first airtight connection part 50 is disposed between the first beam part 101 and the first wall part 11 in the vertical direction, and a second airtight connection part 60 is disposed between the second beam part 102 and the second wall part 12 in the vertical direction. In addition, a third airtight connection part 70 is disposed between the first airtight connection part 50 and the second airtight connection part 60 in the horizontal direction.

[0073] As shown in FIG. 9, in this embodiment, the connected portion 53B of the column-facing portion 53 extends in the same direction as the closing portion 53A. As a result, as shown in FIG. 6, the connected portion 53B and the airtight connection plate 701 are connected along the rear side surface portion 20S of the column 20. Meanwhile, the connected portion 63B of the column-facing portion 63 is arranged so as to be perpendicular to the closing portion 63A, as in the first embodiment. As a result, as shown in FIG. 6, the connected portion 63B of the column-facing portion 63 and the airtight connection plate 701 are connected at the rear right corner of the column 20. Also, as in the first embodiment, the upper airtight tape 702 (FIG. 9) of the third airtight connection portion 70 is connected to the column-upper beam portion 103, and the lower airtight tape 703 is connected to the airtight member 133 (FIG. 4) of the third wall portion 13. As a result, it is possible to form a continuous airtight layer along the direction in which the beam 10 extends, including the region where the beam 10 and the column 20 in FIG. 6 intersect.

[0074] Furthermore, even if the columns 20 are positioned in different positions in the building 1 as in the previous first embodiment and this embodiment, by adjusting the orientation of the connected portion 53B of the column facing portion 53, the first airtight connection portion 50, the second airtight connection portion 60 and the third airtight connection portion 70 can be commonly used in each location while ensuring the airtightness of the building 1.

[0075] Third Embodiment Next, a third embodiment of the present invention will be described. Fig. 10 is a horizontal cross-sectional view of the periphery of a pillar of a building according to this embodiment. Fig. 11 and Fig. 12 are a rear view and a side view of the periphery of a pillar of a building according to this embodiment. Fig. 13 is a perspective view of a first airtight connection part 50, a second airtight connection part 60, and a third airtight connection part 70 of a building according to this embodiment.

[0076] As shown in FIGS. 10 to 13, this embodiment differs from the first embodiment in that the column 20 is arranged at an internal corner of a wall of the building 1. As shown in FIG. 10, the beam 10 has an L-shape. The column-upper beam portion 103 of the beam 10 is arranged above the column 20, and the first beam portion 101 is connected to the column-upper beam portion 103 so as to extend leftward from the left side surface portion 20S of the column 20 in a plan view. In this embodiment, the first beam portion 101 and the column-upper beam portion 103 are formed from an integral member. On the other hand, the second beam portion 102 is arranged near the column-upper beam portion 103 so as to extend forward from the front side surface portion 20S of the column 20 in a plan view. A first wall portion 11, a second wall portion 12, and a third wall portion 13 are arranged below these beams 10 (the first beam portion 101, the second beam portion 102, and the column-upper beam portion 103), as in FIG. 1.

[0077] Also in this embodiment, a first airtight connection part 50 is disposed between the first beam part 101 and the first wall part 11 in the vertical direction, and a second airtight connection part 60 is disposed between the second beam part 102 and the second wall part 12 in the vertical direction. Furthermore, a third airtight connection part 70 is disposed between the first airtight connection part 50 and the second airtight connection part 60 in the horizontal direction. Note that an airtight connection plate 701 of the third airtight connection part 70 is bent and has a first connection part 701A and a second connection part 701B.

[0078] As shown in FIG. 13, in this embodiment, the connected portion 53B of the column-facing portion 53 extends so as to be perpendicular to the closing portion 53A. As a result, as shown in FIG. 10, the connected portion 53B and the airtight connection plate 701 are connected at the rear left corner of the column 20. Meanwhile, as shown in FIG. 13, the connected portion 63B of the column-facing portion 63 is also arranged so as to be perpendicular to the closing portion 63A. As a result, as shown in FIG. 10, the connected portion 63B of the column-facing portion 63 and the airtight connection plate 701 are connected at the front right corner of the column 20. Also in this embodiment, as in the first embodiment, the upper airtight tape 702 (FIG. 13) of the third airtight connection portion 70 is connected to the column-upper beam portion 103, and the lower airtight tape 703 is connected to the airtight member 133 (FIG. 4) of the third wall portion 13. As a result, it is possible to form a continuous airtight layer along the direction in which the beam 10 extends, including the region where the beam 10 and the column 20 in FIG. 10 intersect.

[0079] As described above, in this embodiment, although the pillar 20 is positioned in a different position than in the first embodiment, the airtightness of the building 1 can be ensured by commonly using the first airtight connection part 50, the second airtight connection part 60 and the third airtight connection part 70 at each location.

[0080] Although the buildings according to the embodiments of the present invention have been described above, the present invention is not limited to these, and the following modified embodiments can be adopted, for example.

[0081] (1) In the above embodiments, the pillar-facing portion 53 is integrally formed with the first airtight connection portion 50, and the pillar-facing portion 63 is integrally formed with the second airtight connection portion 60. However, at least one of the pillar-facing portion 53 and the pillar-facing portion 63 may be integrally formed with the airtight connection plate 701 of the third airtight connection portion 70. In this case, an overlapping portion (connection portion) is formed between the pillar-facing portion 53 and the first airtight main body portion 51 of the first airtight connection portion 50, which makes it easy to connect the two. The same applies to the pillar-facing portion 63.

[0082] (2) In the above embodiments, the beam 10 is described as being made of a metal material, but the beam 10 may be made of a material other than metal. Also, the beam 10 may be made of a main body portion that is not airtight and an airtight member that is airtight. [Explanation of symbols]

[0083] 1 Building 10 beams 101 1st beam section 102 2nd beam section 103 Column top beam section 10A Web 10B Lower flange 10C Upper flange 11 First wall 112 Airtight materials 12 Second wall 122 Airtight materials 13 Third wall 133 Airtight materials 20 pillars 20S side part 20T top part 50 First airtight connection 50S, 60S recess 51 First airtight body part 51A Vertical plate section 51B Upper plate 51C Lower plate part 53, 63 Pillar facing part 53A, 63A Blocked section 53B, 63B Connected part 60 Second airtight connection 70 Third airtight connection 701 Airtight connection plate 702 Upper airtight tape 703 Lower airtight tape S1, S3 outer airtight line S2, S4 inner airtight line

Claims

1. A building, a post including a plurality of side portions and a top portion; a first wall portion extending in a first direction from one of the side surfaces of the column in a plan view, the first wall portion including a first outer airtight layer having airtightness in the interior and exterior directions of the building, and a first inner airtight layer located inside the first outer airtight layer and having airtightness in the interior and exterior directions of the building; a second wall portion extending in a second direction from the other side portion of the column in a plan view, the second wall portion including a second outer airtight layer having airtightness in the inside and outside direction of the building, and a second inner airtight layer located inside the second outer airtight layer and having airtightness in the inside and outside direction of the building; a third wall portion including a third outer airtight layer that is arranged between the first wall portion and the second wall portion in the horizontal direction inside the column and has airtightness in the inside and outside direction of the building, and a third inner airtight layer that is located inside the third outer airtight layer and has airtightness in the inside and outside direction of the building; a beam including a column-top beam portion fixed to the upper surface portion of the column, a first beam portion disposed above the first wall portion and extending from the column-top beam portion in the first direction, and a second beam portion disposed above the second wall portion and extending from the column-top beam portion in the second direction; an airtight structure disposed below the beam; a first airtight member located inside the first beam portion and the airtight structure and connected to the first inner airtight layer so as to maintain airtightness in the inside and outside directions of the building; a second airtight member located inside the second beam portion and the airtight structure and connected to the second inner airtight layer so as to maintain airtightness in the inside and outside directions of the building; a third airtight member located inside the column beam portion and the airtight structure and connected to the third inner airtight layer so as to maintain airtightness in the inside and outside directions of the building; and The airtight structure includes: a first airtight connection portion that extends along the first direction toward the side surface portion of the column between the first beam portion and the first wall portion in the vertical direction and vertically connects the first beam portion and the first outer airtight layer so as to maintain airtightness in the inside and outside directions of the building; a second airtight connection portion that extends along the second direction between the second beam portion and the second wall portion in the vertical direction toward the side portion of the column and vertically connects the second beam portion and the second outer airtight layer so as to maintain airtightness in the inside and outside directions of the building; a third airtight connection portion that connects the first airtight connection portion and the second airtight connection portion horizontally inside the column and vertically connects the column-upper beam portion and the third outer airtight layer so as to maintain airtightness in the inside and outside directions of the building; A building that is equipped with:

2. The third airtight connection portion is a horizontal connection portion that connects the first airtight connection portion and the second airtight connection portion in a horizontal direction along the column; an upper connection portion extending upward from the horizontal connection portion and connected to the column-upper beam portion; a lower connection portion extending downward from the horizontal connection portion and connected to the third outer airtight layer; The building of claim 1 , having:

3. A building, a post including a plurality of side portions and a top portion; a first wall portion extending in a first direction from one of the side surfaces of the column in a plan view, the first wall portion including a first airtight layer having airtightness in an inside-outside direction of the building; a second wall portion extending in a second direction from the other side portion of the column in a plan view, the second wall portion including a second airtight layer having airtightness in an inside-outside direction of the building; a third wall portion including a third airtight layer disposed between the first wall portion and the second wall portion in the horizontal direction inside the column and having airtightness in the inside and outside directions of the building; a beam including a column-top beam portion fixed to the upper surface portion of the column, a first beam portion disposed above the first wall portion and extending from the column-top beam portion in the first direction, and a second beam portion disposed above the second wall portion and extending from the column-top beam portion in the second direction; an airtight structure; and The airtight structure includes: a first airtight connection portion that extends along the first direction toward the side surface portion of the column between the first beam portion and the first wall portion in the vertical direction and vertically connects the first beam portion and the first airtight layer so as to maintain airtightness in the inside and outside directions of the building; a second airtight connection portion that extends along the second direction between the second beam portion and the second wall portion in the vertical direction toward the side portion of the column and vertically connects the second beam portion and the second airtight layer so as to maintain airtightness in the inside and outside directions of the building; a third airtight connection portion that connects the first airtight connection portion and the second airtight connection portion horizontally inside the column and vertically connects the column-upper beam portion and the third airtight layer so as to maintain airtightness in the inside and outside directions of the building; Equipped with The third airtight connection portion is a horizontal connection portion that connects the first airtight connection portion and the second airtight connection portion in a horizontal direction along the column; an upper connection portion extending upward from the horizontal connection portion and connected to the column-upper beam portion; a lower connection portion extending downward from the horizontal connection portion and connected to the third airtight layer; and the first airtight connection portion viewed along the first direction and the second airtight connection portion viewed along the second direction each have a recess that opens toward the inside of the building, A building, wherein the first airtight connection portion and the second airtight connection portion each have a closing portion that closes the recess from the side portion of the column and is connected to the horizontal connection portion of the third airtight connection portion.

4. The building according to claim 3 , wherein the first airtight connection portion and the second airtight connection portion each have a connected portion that is arranged to overlap an end of the horizontal connection portion and is connected to the end.

5. The beam has a web facing the inside and outside directions of the building, and a pair of upper and lower flanges extending in the inside and outside directions from upper and lower end portions of the web, At least one of the first airtight connection portion and the second airtight connection portion is A vertical plate portion extending in the vertical direction and disposed outside an inner end of a lower flange of the pair of upper and lower flanges of the beam when viewed from the first direction or the second direction; An upper plate portion extending from an upper end of the vertical plate portion toward the inside of the building and arranged to overlap the lower flange; a lower plate portion extending from a lower end of the vertical plate portion toward the inside of the building and connected to the first airtight layer or the second airtight layer so as to maintain airtightness; and The building according to claim 3 or 4, wherein the blocking portion is positioned so as to block the recess defined by the upper plate portion, the vertical plate portion, and the lower plate portion from the column side.

6. the upper connection portion is an upper airtight tape that connects the horizontal connection portion and the column-upper beam portion so as to maintain airtightness, The building according to any one of claims 3 to 5, wherein the lower connection portion is a lower airtight tape that connects the horizontal connection portion and the third airtight layer to maintain airtightness.

Images