JP2016216907A - Heat insulation airtight structure of beam connection part - Google Patents

Heat insulation airtight structure of beam connection part Download PDF

Info

Publication number
JP2016216907A
JP2016216907A JP2015099102A JP2015099102A JP2016216907A JP 2016216907 A JP2016216907 A JP 2016216907A JP 2015099102 A JP2015099102 A JP 2015099102A JP 2015099102 A JP2015099102 A JP 2015099102A JP 2016216907 A JP2016216907 A JP 2016216907A
Authority
JP
Japan
Prior art keywords
airtight
indoor
contact
block
flange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2015099102A
Other languages
Japanese (ja)
Other versions
JP6530960B2 (en
Inventor
前川 敏晴
Toshiharu Maekawa
敏晴 前川
Original Assignee
旭化成ホームズ株式会社
Asahi Kasei Homes Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 旭化成ホームズ株式会社, Asahi Kasei Homes Co filed Critical 旭化成ホームズ株式会社
Priority to JP2015099102A priority Critical patent/JP6530960B2/en
Publication of JP2016216907A publication Critical patent/JP2016216907A/en
Application granted granted Critical
Publication of JP6530960B2 publication Critical patent/JP6530960B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

PROBLEM TO BE SOLVED: To realize sure airtightness, and to improve workability, in a heat insulation airtight structure of a beam connection part.SOLUTION: A heat insulation airtight structure of a beam connection part 1 is provided for connecting an outer peripheral beam 3 extending in the first direction X along an outer wall 2 of a building and an indoor beam 4 for crossing with the first direction X and extending in the second direction Y toward the inside of the building, and comprises heat insulation airtight blocks 7A and 7B for covering outer surfaces 41a and 41b along the second direction Y of the indoor beam 4. The heat insulation airtight blocks 7A and 7B comprise an opposed surface 71d opposed to the outer surfaces 41a and 41b of the indoor beam 4, and the opposed surface 71d is formed with a continuous airtight projection arranged so as to cross with the second direction Y by projecting to the indoor beam 4 side, and this airtight projection is brought into close contact with the outer surfaces 41a and 41b of the indoor beam 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a heat insulating and airtight structure of a beam connecting portion.

  Some buildings, such as houses, include a side heat insulating material that covers both side surfaces of the indoor beam and a lower surface heat insulating material that covers the lower surface of the indoor beam at the beam connection portion where the outer beam and the indoor beam are orthogonal to each other (for example, patents). Reference 1). This patent document 1 discloses a heat insulating and airtight structure in which an airtight cover is adhered to a side heat insulating material and a bottom heat insulating material. In this heat insulating and airtight structure, the airtight cover is constructed so as to cover the indoor side end surfaces of the side surface heat insulating material and the bottom surface heat insulating material provided along the indoor beam.

Japanese Patent Laid-Open No. 2002-4451 Japanese Patent Application Laid-Open No. 2002-4442

  In the above prior art, although the end faces on the indoor side of the side surface heat insulating material and the bottom surface heat insulating material are covered with the airtight cover, the airtightness is not sufficient, and the gap between the airtight cover and the indoor beam is sealed. It is necessary to install an airtight tape. However, since the outer shape of the indoor beam (for example, H shape) is complicated, it is necessary to perform the construction while bending the airtight tape along the outer shape, and it is not easy to ensure the airtightness.

  An object of this invention is to provide the heat insulation airtight structure of the beam connection part which can implement | achieve reliable airtight in a beam connection part, and can aim at the improvement of workability.

  The heat-insulating and airtight structure of the beam connecting portion according to the present invention includes an outer peripheral beam extending in the first direction along the outer wall of the building, and an indoor beam that intersects the first direction and extends in the second direction toward the inside of the building. And a heat-insulating and air-tight structure of the beam connecting portion to be connected to each other, comprising a heat-insulating and air-tight block covering the outer surface along the second direction of the indoor beam, and the heat-insulating and air-tight block has a facing surface facing the outer surface, On the opposite surface, there are formed airtight projections that protrude to the indoor beam side and are arranged so as to cross the second direction, and the airtight projection is in close contact with the outer surface of the indoor beam.

  According to the heat-insulating and air-tight structure of the beam connecting portion, the heat-insulating and air-tight block covering the outer surface along the second direction of the indoor beam intersecting with the outer peripheral beam protrudes from the facing surface facing the outer surface of the indoor beam, A continuous airtight protrusion is provided so as to intersect the second direction, which is the longitudinal direction, and the airtight protrusion is brought into close contact with the outer surface of the indoor beam, thereby realizing reliable airtightness. Therefore, as before, there is no need to apply an airtight tape along the shape of the outer surface of the indoor beam, and the workability can be improved.

  Moreover, the groove part for forming the airtight protrusion is provided in the opposing surface, and the airtight protrusion may be formed by foaming the foamable member poured into the groove part. Thereby, an airtight protrusion can be formed corresponding to the shape of the outer surface of the indoor beam by pouring and foaming the foamable member into the groove. Since the airtight projection formed by foaming the foamable member fits in and adheres favorably to the outer surface of the indoor beam, it is possible to improve workability and airtightness.

  The heat-insulating and air-tight structure of the beam connecting portion includes an air-tight member that covers the outer peripheral beam from the indoor side, and the air-tight member is disposed away from the indoor beam in the first direction, and the heat-insulating and air-tight block extends in the first direction. The overhanging portion and the airtight member may have flat surfaces that are flush with each other at adjacent portions adjacent to each other on the indoor side. According to the heat-insulating and air-tight structure having this configuration, since the projecting portion protrudes in the first direction, the adjacent portion between the heat-insulating and air-tight block and the air-tight member can be disposed at a position separated from the indoor beam in the first direction. It is possible to seal the gap between the heat-insulating air-tight block and the air-tight member by applying an air-tight tape to the flat surfaces that are flush with each other at the adjacent portion. Therefore, it is possible to eliminate the need to apply an airtight tape to the corner where the adjacent surfaces intersect, and it is only necessary to apply an airtight tape to the flat surface, thereby improving workability and improving airtightness. it can.

  Further, a flange receiving groove into which the lower flange of the indoor beam is inserted may be formed on the side surface of the heat insulating block on the indoor beam side. Thereby, since the lower flange of the indoor beam can be inserted into the flange receiving groove, the heat insulating and airtight block can be positioned with respect to the lower flange using the wall surface of the flange receiving groove as a guide. Therefore, the heat insulation block can be easily and accurately arranged with respect to the indoor beam. Moreover, the opposing surface in the side surface by the side of the indoor beam of a heat insulation airtight block can be made to approach the web of an indoor beam by arrange | positioning a lower flange in a flange accommodation groove | channel. Therefore, the airtightness can be improved by suitably bringing the airtight protrusion formed on the opposing surface into close contact with the web of the indoor beam.

  In addition, the upper floor supported by the indoor beam has the bottom surface of the upper floor disposed below the upper flange of the indoor beam, and the upper floor is disposed close to the indoor beam in the first direction. The heat-insulating and air-tight block is divided into a plurality of parts in the vertical direction, and has an upper block disposed on the upper side and a lower block disposed on the lower side. The upper block is an indoor beam in the first direction. The structure provided with the filling part with which the clearance gap between a web and an upper floor is filled may be sufficient. In the heat-insulating and air-tight structure of this configuration, the heat-insulating and air-tight block is divided into upper and lower parts, so after filling the gap between the indoor beam web and the upper floor and filling the upper block filling part, The lower block can be arranged, and the workability can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, while ensuring reliable airtightness in a beam connection part, the heat insulation airtight structure of the beam connection part by which the improvement of workability was achieved can be provided.

It is a disassembled perspective view which shows the heat insulation airtight structure of the beam connection part which concerns on 1st Embodiment of this invention from the downward direction. It is a perspective view which shows the heat insulation airtight structure of the state with which the heat insulation airtight block was mounted | worn from the downward direction. It is sectional drawing which shows the heat insulation airtight structure at the time of seeing the surface which follows an upper flange of an indoor beam from upper direction. 2 is a cross-sectional view showing a heat insulating and airtight structure when viewed from a first direction X. FIG. It is sectional drawing which shows the heat insulation airtight structure at the time of seeing from the 2nd direction Y. It is a perspective view which shows a pair of heat insulation airtight block from upper direction. It is a perspective view which shows a pair of heat insulation airtight block from the downward direction. It is a perspective view which shows the heat insulation airtight structure of the state with which the airtight member was mounted | worn along an outer periphery beam from the downward direction. It is a perspective view which shows the heat insulation airtight block of the heat insulation airtight structure of the beam connection part which concerns on 2nd Embodiment from upper direction. It is a perspective view which shows the heat insulation airtight block of the heat insulation airtight structure of the beam connection part which concerns on 3rd Embodiment from upper direction. It is a disassembled perspective view which shows the heat insulation airtight structure of the beam connection part which concerns on 4th Embodiment from the downward direction. It is sectional drawing which shows the heat insulation airtight structure shown in FIG. It is a perspective view which shows the some heat insulation airtight block in FIG. 11 from the downward direction.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same part or an equivalent part, and the overlapping description is abbreviate | omitted. Moreover, in each figure of FIGS. 1-13, three directions orthogonal to each other are illustrated with arrows as an X direction, a Y direction, and a Z direction. The X direction (first direction) is a direction in which an outer peripheral beam 3 described later extends, and the Y direction (second direction) is a direction in which an indoor beam 4 described later extends, and the Z direction (third direction). ) Is the vertical direction.

  First, with reference to FIGS. 1-8, the heat insulation airtight structure of the beam connection part which concerns on 1st Embodiment is demonstrated. As shown in FIGS. 1 and 2, the heat insulating and airtight structure 10 of the beam connecting portion 1 is a heat insulating and airtight structure applied to, for example, a steel structure building. This beam connecting portion 1 is a connecting portion between an outer peripheral beam 3 arranged along the outer wall 2 of the building and an indoor beam 4 extending toward the indoor side.

  The outer beam 3 and the indoor beam 4 are made of H-shaped steel, and have webs 31 and 41, upper flanges 32 and 42, and lower flanges 33 and 43. As shown in FIG. 3, the outer peripheral beam 3 and the indoor beam 4 are connected via, for example, an L-shaped mounting bracket 5. The mounting bracket 5 includes a fixed piece 51 that contacts the web 31 of the outer peripheral beam 3 and a support piece 52 that contacts the web 41 of the indoor beam 4. The fixed piece 51 and the support piece 52 are orthogonal to each other in the Z direction. ing. The fixed piece 51 is in contact with the side surface 31 a on the indoor side of the web 31 and is bolted to the web 31, and the support piece 52 is in contact with one side surface 41 a in the X direction of the web 41, with respect to the web 41. It is bolted. In addition, joining of the outer periphery beam 3 and the indoor beam 4 may be joined using another attachment metal fitting, and may be joined by other methods, such as welding.

  Further, the outer peripheral beam 3 and the indoor beam 4 support the upper floor 6 from below, and the top surfaces 32 a and 42 a of the upper flanges 32 and 42 are in contact with the bottom surface 6 a of the upper floor 6.

  Here, the heat-insulating and air-tight structure 10 includes heat-insulating and air-tight blocks 7A and 7B that cover the indoor beam 4 in the beam connecting portion 1. The heat insulating airtight blocks 7A and 7B are block bodies having heat insulating properties and airtightness. The heat insulating and airtight blocks 7A and 7B are arranged so as to sandwich the indoor beam 4 from both sides in the X direction. The heat insulating and airtight block 7 </ b> A is disposed on the side surface 41 a side of the web 41 of the indoor beam 4, and the heat insulating and airtight block 7 </ b> B is disposed on the other side surface 41 b side of the web 41 of the indoor beam 4.

  The heat-insulating and air-tight blocks 7A and 7B project from the block main body 71 disposed so as to cover the side surfaces 41a and 41b of the web 41 of the indoor beam 4 to the outside in the X direction (on the opposite side to the indoor beam 4). And an overhanging portion 72 arranged to cover the indoor side surface 31a of the web 31 of the outer circumferential beam 3.

  As shown in FIG. 4, the block main body 71 has a length that extends from the top surface 42a of the upper flange 42 of the indoor beam 4 to below the bottom surface 43a of the lower flange 43 in the Z direction, as shown in FIG. In the Y direction, the length exceeds the length from the web 41 to the end faces 42c, 43c of the flanges 42, 43 in the Y direction.

  Further, as shown in FIGS. 6 and 7, the block main body 71 has an upper flange accommodating recess 73 for accommodating the upper flange 42 of the indoor beam 4 and a lower flange accommodating groove for accommodating the lower flange 43 of the indoor beam 4. 74 is formed. The block main body 71 includes a shape that follows the shape of the indoor beam 4 (the shape of the outer surface along the second direction) on the side portion on the indoor beam 4 side, and a contact surface that abuts against the upper floor 6 ( (Opposite surface) 71a, abutment surfaces 71b to 71g that abut against the indoor beam 4, and abutment surfaces 71h that abut against the heat insulating airtight blocks 7B and 7A that oppose each other. In addition, the outer surface along the 2nd direction of an indoor beam is a surface parallel to the Y direction which is a 2nd direction, and may include the surface inclined with respect to the Y direction.

  Specifically, the contact surfaces 71 b to 71 h of the block main body 71 are opposed to the contact surface 71 a that contacts the bottom surface 6 a of the upper floor 6 and the end surface 42 c of the upper flange 42 of the indoor beam 4. The contact surface 71b that contacts the contact surface 71c that contacts the lower surface 42b of the upper flange 42, the contact surface 71d that contacts the side surfaces 41a and 41b of the web 41, and the upper surface 43b of the lower flange 43 The contact surface 71e that contacts the end surface 43c of the lower flange 43, the contact surface 71g that contacts the bottom surface 43a of the lower flange 43, and the heat insulating airtight blocks 7B and 7A that face each other. 71h is included.

  The upper flange accommodating recess 73 is a region surrounded by the contact surfaces 71 b and 71 c, and the contact surface 71 c is a step surface formed below the contact surface 71 a that forms the top surface of the block main body 71. . The level difference between the contact surface 71 a and the contact surface 71 c corresponds to the thickness of the upper flange 42.

  The lower flange accommodating groove 74 is a region surrounded by the contact surfaces 71e, 71f, 71g. The lower flange accommodating groove 74 is formed so as to enter the inside of the block main body 17 in the X direction from the side of the block main body 71 on the web 41 side. The distance between the contact surface 71e and the contact surface 71g is opposite to the thickness of the lower flange 43, and the distance between the contact surface 71d and the contact surface 71e is the end surface of the side surface 41a, 41b of the web 41 and the lower flange 43. This corresponds to the distance to 43c.

  Moreover, in the heat insulating and airtight blocks 7A and 7B, a concave portion may be formed at a corner corresponding to the corner where the outer peripheral beam 3 and the indoor beam 4 intersect.

  As shown in FIG. 4, the overhanging portions 72 of the heat insulating and airtight blocks 7 </ b> A and 7 </ b> B have a length that extends from the top surface 32 a of the upper flange 32 of the outer peripheral beam 3 to the bottom surface 33 a of the lower flange 33 in the Z direction.

  The overhanging portion 72 is formed with an upper flange accommodating recess 76 for accommodating the upper flange 32 of the outer peripheral beam 3 and a lower flange accommodating recess 77 for accommodating the lower flange 33 of the outer peripheral beam 3. The overhanging portion 72 includes a shape following the outer shape of the outer circumferential beam 3 on the side portion on the outer circumferential beam 3 side, and a contact surface 72a that abuts against the upper floor 6 and the outer circumferential beam 3. The contact surfaces 72b to 72f are in contact with each other.

  FIG. 4 illustrates the heat insulating and airtight block 7A. The abutting surfaces 72a to 72f of the overhanging portion 72 are abutting surfaces 72a that abut against the bottom surface 6a of the upper floor 6 and abutment surfaces that abut against the end surface 32c of the upper flange 32 of the outer peripheral beam 3. 72b, an abutment surface 72c that abuts against the lower surface 32b of the upper flange 32, an abutment surface 72d that abuts against the indoor side surface 31a of the web 31, and an abutment against the upper surface 33b of the lower flange 33 The contact surface 72e and the contact surface 72f which contacts and faces the end surface 33c of the lower flange 33 are included.

  The upper flange accommodating recess 76 is a region surrounded by the contact surfaces 72 b and 72 c, and the contact surface 72 c is a step surface formed below the contact surface 72 a that forms the top surface of the overhang portion 72. is there. Further, the contact surface 72 a is formed so as to be flush with the top surface 32 a of the upper flange 32 of the outer peripheral beam 3.

  The lower flange accommodating recess 77 is a region surrounded by the contact surfaces 72e and 72f, and the contact surface 72e is a stepped surface formed above the bottom surface 72g of the overhang portion 72. The bottom surface 72g is a surface that faces the contact surface 72a in the Z direction, and is formed to be flush with the bottom surface 33a of the lower flange 33 of the outer peripheral beam 3. Further, the bottom surface 72 g of the overhang portion 72 is disposed above the bottom surface 71 i of the block main body 71.

  Here, as shown in FIG. 6, airtight projections 11 that inhibit the passage of air between the outdoor side and the indoor side are formed in the heat insulating and airtight blocks 7 </ b> A and 7 </ b> B, respectively. The airtight protrusion 11 includes a first protrusion (not shown) protruding from the contact surfaces 71a to 71g, a second protrusion 13 protruding from the contact surface 71a, and a third protrusion 14 protruding from the contact surface 72a. including. The airtight projection 11 is illustrated only in FIGS. 3 and 6.

  The first protrusion is continuous in the direction intersecting the Y direction (Z direction or X direction) and is formed so as to inhibit the passage of air along the longitudinal direction (Y direction) of the indoor beam 4. The first protrusion is an airtight protrusion formed by foaming a foamable member poured into the protrusion groove 15. As the foamable member, for example, foamed urethane can be used. The foamable member may be a one-component material composed of one kind of liquid material, or may be a two-component material composed of a mixture of two kinds of liquid materials. The foamable member may be configured by mixing three or more kinds of liquid materials.

  The protrusion groove 15 forms a flow path through which the foamable member can flow, and holds the foamable member that functions as an airtight protrusion after the foamable member is foamed and cured. As shown in FIG. 5, the protrusion groove 15 is continuously formed on the contact surfaces 71 a, 71 b, 71 c, 71 d, 71 e, 71 f, 71 g, 71 h of the block main body 71.

  The first protrusion protruding from the contact surface 71 a is in close contact with the bottom surface 6 a of the upper floor 6. The first protrusion protruding from the contact surface 71 b is in close contact with the end surface 42 c of the upper flange 42. The first protrusion protruding from the contact surface 71 c is in close contact with the lower surface 42 b of the upper flange 42. The first protrusions protruding from the contact surface 71 d are in close contact with the side surfaces 41 a and 41 b of the web 41. The first protrusion protruding from the contact surface 71 e is in close contact with the upper surface 43 b of the lower flange 43. The first protrusion protruding from the contact surface 71 f is in close contact with the end surface 43 c of the lower flange 43. The first protrusion protruding from the contact surface 71 g is in close contact with the bottom surface 43 a of the lower flange 43. Further, the first projecting portion projecting from the abutting surface 71h is in close contact with the projecting first projecting portion from the opposing abutting 71h. In addition, the 1st protrusion part which protrudes from the contact surface 71h should just be formed in at least one among the heat insulation airtight blocks 7A and 7B.

  The block main body 71 is formed with a communication hole 16 that communicates with the protrusion groove 15. The communication hole 16 is continuously formed in the X direction so as to penetrate from the indoor side surface 71j of the block main body 71 to the contact surface 71d on the indoor beam 4 side. The indoor side surface 71j is a surface facing the contact surface 71d in the X direction, and is a surface directed to the side opposite to the indoor beam 4. An end portion of the communication hole 16 on the side surface 71j side is formed as an opening 16a in the side surface 71j, and an end portion of the communication hole 16 on the indoor beam 4 side is formed in the protrusion groove portion 15 as an opening portion 16b. The opening 16a formed in the side surface 71j is used as an inlet for allowing the foaming member to flow into the protrusion groove 15.

  Further, the upper end of the protrusion groove 15 is formed as an opening 15a in the side surface 71j, and the lower end of the protrusion groove 15 is formed as an opening 15b in the bottom surface 71i. The openings 15a and 15b are used as outlets for allowing the foaming member foamed in the projection groove 15 to flow out. Note that the foaming member may flow from the opening 15a, or the foaming member may flow from the opening 15b.

  As shown in FIGS. 3 and 6, the second protrusion 13 is continuous in the Y direction on the contact surface 71 a of the block body 71. The end on the indoor side of the second protrusion 13 is connected to the first protrusion, and the end on the outdoor side of the second protrusion 13 is connected to the third protrusion 14. The second protrusion 13 has, for example, a semicircular shape in a cross section that intersects the longitudinal direction of the second protrusion 13. The second protrusion 13 protrudes upward from the contact surface 71 a and is in close contact with the bottom surface 6 a of the upper floor 6. The second protrusion 13 inhibits the passage of air in the width direction (X direction) of the indoor beam 4.

  The third projecting portion 14 is continuous in the X direction on the contact surface 72 a of the overhang portion 72. The end of the third protrusion 14 on the indoor beam 4 side is connected to the second protrusion 13, and the opposite side of the third protrusion 14 from the indoor beam 4 is to the end of the contact surface 72 a in the X direction. It is continuous. The third protrusion 14 has, for example, a semicircular shape in a cross section that intersects the longitudinal direction of the third protrusion 14. The third projecting portion 14 protrudes upward from the contact surface 72 a and is in close contact with the bottom surface 6 a of the upper floor 6. The third protrusion 14 inhibits the passage of air between the indoor side and the outdoor side in the width direction (Y direction) of the outer peripheral beam 3.

  Next, the airtight member 20 that covers the indoor side of the outer peripheral beam 3 will be described with reference to FIG. The heat-insulating and airtight structure 10 of the beam connecting portion 1 includes a bottom airtight plate 21 that covers the lower flange 33 of the outer peripheral beam 3 from below as an airtight member 20 that covers the outer peripheral beam 3, and a side that covers the indoor side surface 31 a of the outer peripheral beam 3. A hermetic plate 22.

  The bottom airtight plate 21 has a plate shape and is disposed along the lower flange 33, and the thickness direction of the bottom airtight plate 21 is disposed along the Z direction. The thickness of the bottom airtight plate 21 corresponds to the distance between the bottom surface 33a of the lower flange 33 and the bottom surface 72g of the overhang portion 72 and the bottom surface 71i of the block main body 71 in the Z direction, as shown in FIG. doing. The width (the length in the Y direction) of the bottom airtight plate 21 corresponds to the distance between the outer wall 2 and the block main body 71.

  The side airtight plate 22 has a plate shape and is disposed along the web 31, and the thickness direction of the side airtight plate 22 is disposed along the Y direction. Further, the thickness of the side airtight plate 22 corresponds to the distance between the end surface 32c of the upper flange 32 and the end surface 33c of the lower flange 33 of the outer peripheral beam 3 and the side surface 72h on the indoor side of the overhanging portion 72 in the Y direction. doing. The overhanging portion 72 and the side airtight plate 22 have flat surfaces that are flush with each other on the indoor side surfaces 72h and 22a including adjacent portions adjacent to each other on the indoor side. That is, the indoor side surface 72 h of the overhang portion 72 is flush with the indoor side surface 22 a of the side airtight plate 22. Further, the end portion in the X direction of the side airtight plate 22 on the indoor beam 4 side is in contact with the end surface 72 i in the X direction of the overhang portion 72. The joint portion between the heat-insulating and air-tight blocks 7A and 7B and the side air-tight plate 22 is formed at a position separated from the indoor beam 4 in the X direction.

  Next, the construction method of the heat insulation airtight structure 10 of the beam connection part 1 is demonstrated. First, as shown in FIG. 1, a pair of heat insulating and airtight blocks 7A and 7B are prepared. Next, the heat insulating and airtight blocks 7A and 7B are arranged on the side of the indoor beam 4, and the heat insulating and airtight blocks 7A and 7B are mounted close to the indoor beam 4. At this time, the lower flange 43 of the indoor beam 4 is inserted and fitted into the lower flange receiving groove 74. Accordingly, the heat insulating and airtight blocks 7A and 7B can be positioned and attached to the indoor beam 4 using the lower flange accommodating groove 74 as a guide.

  In the state where the heat insulating and airtight blocks 7A and 7B are mounted, the contact surface 71a of the block body 71 contacts the bottom surface 6a of the upper floor 6 and the contact surface 71b contacts the end surface 42c of the upper flange 42. The contact surface 71c contacts the lower surface 42b of the upper flange 42, the contact surface 71d contacts the side surfaces 41a and 41b of the web 41, the contact surface 71e contacts the upper surface 43b of the lower flange 43, and the contact surface. 71f contacts the end surface 43c of the lower flange 43, the contact surface 71g contacts the bottom surface 43a of the lower flange 43, and the contact surface 71h contacts the opposing contact surface 71h. The “contact” may be a state where the opposing surfaces are in contact with each other, or a state where the opposing surfaces are close to each other but not in contact.

  Subsequently, the heat insulating and airtight blocks 7A and 7B are restrained so that the heat insulating and airtight blocks 7A and 7B do not move. At this time, the second protrusion 13 and the third protrusion 14 of the airtight protrusion 11 are in close contact with the upper floor 6.

  Next, a foam member is poured from the communication hole 16 to foam the foam member. The foam member passes through the communication hole 16 and flows into the protrusion groove 15, and foams in the communication hole 16 and the protrusion groove 15. The foaming member foams over the entire length of the projection groove 15 and flows out from the openings 15 a and 15 b at both ends of the projection groove 15. The foaming member in the groove 15 for protrusion foams, and the 1st protrusion part closely_contact | adhered according to the shape of the upper floor 6 and the indoor beam 4 is formed. Then, after the foam member is cured, the foam member that has flowed out of the block body 71 is cut off, and the end surface of the foam member is flush with the surrounding surface. Thereby, the outer surface of the block main body 71 is maintained as a flat surface.

  Next, as shown in FIG. 8, the bottom airtight plate 21 and the side airtight plate 22 are constructed. The bottom airtight plate 21 is fitted into the gap between the block main body 71 and the outer wall 2 and is disposed so as to contact the lower flange 33. The side airtight plate 22 is arranged so as to cover the web 31 from the indoor side. At this time, the bottom surface of the bottom airtight plate 21 is flush with the bottom surface 71i of the block main body 71, and the indoor side surface 22a of the side airtight plate 22 is the indoor side surface 72h of the overhanging portion 72. It has become the same. Further, the indoor side end face of the bottom airtight plate 21 is flush with the side faces 72h and 22a.

  Then, an airtight tape is affixed from the indoor side to the adjacent line where two of the heat insulating airtight blocks 7A and 7B, the bottom airtight plate 21, and the side airtight plate 22 are adjacent. Specifically, the block main bodies 71 of the heat insulating and airtight blocks 7A and 7B are adjacent to each other at the bottom line L1, the heat insulating and airtight blocks 7A and 7B and the bottom airtight plate 21 are adjacent to each other at the bottom line L2, and the overhang part 72. The side airtight plate 22 is adjacent to the adjacent line L3, and the side airtight plate 22 and the bottom airtight plate 21 are adjacent to the adjacent line L4. Thereby, the clearance gap in the part which each member (heat insulation airtight blocks 7A and 7B, the bottom part airtight board 21, the side part airtight board 22) for airtightness adjoins can be sealed, and airtightness can be ensured.

  According to the heat-insulating and airtight structure 10 of the beam connecting portion 1, the outer surface (the end surface 32 c of the upper flange 32, the lower surface 32 b of the upper flange 32, the side surface of the web 31, the side surface of the lower flange 33). The airtight projection 11 is formed on the contact surfaces 71 a to 71 h facing the upper surface 33 b, the end surface 33 c of the lower flange 33, the bottom surface 33 a of the lower flange 33, and the contact surfaces 71 a and 72 a facing the bottom surface 6 a of the upper floor 6. Since it is formed, the first protrusion can be brought into close contact with the indoor beam 4 and the upper floor 6 to achieve reliable airtightness. As a result, it is necessary to apply an airtight tape at the indoor side ends of the heat insulating and airtight blocks 7A and 7B in the longitudinal direction of the indoor beam 4 so as to follow the shape (H shape) of the outer surface of the indoor beam 4 as before. In addition, the workability can be improved and the airtightness can be improved.

  Also, the contact surfaces 71 a to 71 h are provided with a projection groove 15, and a foamable member is poured into the projection groove 15 to form the first projection, so that the outer surface of the indoor beam 4 The first protrusions that are in close contact with each other can be easily formed, and the workability and airtightness can be improved.

  Further, in the heat insulating and airtight structure 10, the second protrusion 13 continuous in the Y direction is formed on the contact surface 71a, and the third protrusion 14 continuous in the X direction is formed on the contact surface 72a. The second protrusion 13 and the third protrusion 14 are in close contact with the bottom surface 6 a of the upper floor 6. Thereby, the clearance gap between the upper floor 6 and the heat insulation airtight blocks 7A and 7B is sealed, and airtightness is ensured.

  Further, in the heat insulating and airtight structure 10, the heat insulating and airtight blocks 7 </ b> A and 7 </ b> B have an overhanging portion 72 that protrudes along the Y direction. It can arrange | position in the position spaced apart from the indoor beam 4 in the Y direction, and an airtight tape can be stuck on the flat surface which is flush | planar across this adjacent line L3. Thereby, the clearance gap between the heat insulation airtight blocks 7A and 7B and the side part airtight board 22 can be sealed, and the need to construct an airtight tape in the corner where the adjacent surfaces intersect can be eliminated. . In the heat insulating and airtight structure 10, it is only necessary to apply an airtight tape to adjacent flat surfaces across the adjacent line L <b> 3, so that workability can be improved and reliable airtightness can be realized.

  Moreover, since the lower flange receiving groove 74 into which the lower flange 43 of the indoor beam 4 is inserted is formed on the side surface (between the contact surfaces 71d and 71h) of the heat insulating and airtight blocks 7A and 7B on the indoor beam 4 side. The heat insulating and airtight blocks 7A and 7B can be positioned with respect to the lower flange 43 using the contact surfaces 71e and 71g of the lower flange accommodating groove 74 as a guide. Therefore, the heat insulating and airtight blocks 7A and 7B can be easily and accurately arranged on the indoor beam 4. Further, by arranging the lower flange 43 in the lower flange accommodating groove 74, the contact surface 71d on the side surface of the heat insulating and airtight blocks 7A and 7B on the indoor beam 4 side can be brought close to the web 41 of the indoor beam 4. . Therefore, the first protrusion portion of the airtight protrusion 11 formed on the contact surface 71d can be preferably brought into close contact with the web 41 to improve the airtightness.

  Next, with reference to FIG. 9, the heat insulation airtight structure of the beam connection part which concerns on 2nd Embodiment is demonstrated. The heat-insulating and air-tight structure of the beam connecting portion according to the second embodiment is different from the beam connecting portion according to the first embodiment in that the shape of the heat-insulating and air-tight block and the configuration of the airtight projection are different. FIG. 9A is a perspective view showing a heat-insulating and air-tight block of the heat-insulating and air-tight structure of the beam connecting portion according to the second embodiment from above, and FIG. 9B is a cross-sectional view showing a cross section of the airtight projection. is there. Note that a description similar to that of the first embodiment is omitted.

  As shown in FIG. 9A, an airtight projection 11B is formed on the heat insulating airtight block 7C. The airtight protrusion 11B includes a first protrusion 12B, a second protrusion 13B, and a third protrusion 14B. The first protrusion 12B, the second protrusion 13B, and the third protrusion 14B are seal members made of, for example, EPDM (ethylene / propylene / diene rubber), and as shown in FIG. A cross section perpendicular to the direction is rectangular. The seal member has elasticity and can be suitably deformed according to the unevenness of the opposing surfaces.

  The first protrusion 12B is continuously formed on the contact surfaces 71a, 71b, 71c, 71d, 71e, 71f, 71g, 71h of the block main body 71. The second protrusion 13B is formed continuously in the Y direction on the contact surface 71a of the block main body 71, and the third protrusion 14B is continuous in the X direction on the contact surface 72a of the overhang 72. Is formed.

  Even in such a heat-insulating and air-tight structure including the heat-insulating and air-tight block 7C, the air-tight projection 11B can be brought into close contact with the upper floor 6 and the indoor beam 4 to achieve reliable air-tightness.

  Next, with reference to FIG. 10, the heat insulation airtight structure of the beam connection part which concerns on 3rd Embodiment is demonstrated. The heat-insulating and air-tight structure of the beam connecting portion according to the third embodiment is different from the beam connecting portion according to the second embodiment in that the configuration of the airtight projection is different. FIG. 10A is a perspective view showing a heat-insulating and air-tight block of the heat-insulating and air-tight structure of the beam connecting portion according to the third embodiment from above, and FIG. 10B is a cross-sectional view showing a cross section of the airtight projection. is there. In addition, the description similar to said 1st, 2nd embodiment is abbreviate | omitted.

  An airtight projection 11C is formed in the heat insulating and airtight block 7D shown in FIG. The airtight projection 11C includes a first projection 12C, a second projection 13C, and a third projection 14C. The first protrusion 12C, the second protrusion 13C, and the third protrusion 14C are formed by making the surface shape of the contact surface convex as shown in FIG. 10B. . The first projecting portion 12C, the second projecting portion 13C, and the third projecting portion 14C are formed so that a cross section perpendicular to the longitudinal direction forms a semicircular shape. The airtight protrusion 11C is deformed in accordance with the surface facing the airtight protrusion 11C, and is in close contact with the outer surface of the opposed indoor beam 4 or upper floor 6.

  Even in the heat-insulating and air-tight structure including such a heat-insulating and air-tight block 7D, the air-tight projection 11C can be brought into close contact with the upper floor 6 and the indoor beam 4 to achieve reliable air-tightness.

  Next, with reference to FIGS. 11-13, the heat insulation airtight structure of the beam connection part which concerns on 4th Embodiment is demonstrated. 4th Embodiment demonstrates the case where a heat insulation airtight structure is applied with respect to the type of building in which the bottom face 26a of the upper floor 26 is set to the low position. In addition, the description similar to 1st Embodiment is abbreviate | omitted.

  In the heat-insulating and airtight structure 10B of the beam connecting portion according to the fourth embodiment, the bottom surface 26a of the upper floor 26 is disposed at a position lower than the upper flanges 32 and 42 as shown in FIGS. The floor surface 26 b of the floor 26 is disposed at a position higher than the upper flanges 32 and 42. The upper floor 26 is supported by a mounting bracket 27 attached to the upper flange 42.

  As shown in FIG. 12, the mounting bracket 27 includes a fixed piece 27a disposed on the upper flange 32, a suspended piece 27b bent downward from the fixed piece 27a, and a web 41 from the suspended piece 27b. And a support piece 27c that is bent to the opposite side and contacts the bottom surface 26a of the upper floor 26. The mounting bracket 27 extends in the longitudinal direction of the indoor beam 4. Similarly, the mounting bracket 27 is also attached to the outer circumferential beam 3, and the floor 26 b of the upper floor 26 is supported from below by the mounting bracket 27.

  An end surface 26 c in the X direction of the upper floor 26 is disposed close to the indoor beam 4. The hanging piece 27b of the mounting bracket 27 is disposed so as to cover the end face 26c of the upper floor 26. In the X direction, the distance between the hanging piece 27 b and the web 41 corresponds to the distance between the end face 42 c of the upper flange 42 and the web 41.

  Here, the heat insulating and airtight structure 10 </ b> B includes heat insulating and airtight blocks 8 </ b> A and 8 </ b> B that cover the indoor beam 4 in the beam connecting portion 1. The heat insulating airtight blocks 8A and 8B are block bodies having heat insulating properties and airtightness. The heat insulating and airtight blocks 8A and 8B are disposed so as to sandwich the indoor beam 4 from both sides in the X direction. The heat insulating and airtight block 8A is disposed on the side 41a side of the web 41 of the indoor beam 4, and the heat insulating and airtight block 8B is disposed on the other side surface 41b of the web 41 of the indoor beam 4.

  The heat-insulating and air-tight blocks 8A and 8B are each divided into upper and lower parts, and have an upper block 81 disposed on the upper side and a lower block 82 disposed on the lower side.

  The upper block 81 includes a block main body 83 disposed so as to cover the side surfaces 41a and 41b of the web 41 of the indoor beam 4, and the outer peripheral beam 3 protruding from the block main body 83 to the outside in the X direction (on the opposite side to the indoor beam 4). And an overhanging portion 84 arranged to cover the side surface 31a on the indoor side of the web 31.

  The lower block 82 has a block main body 85 disposed so as to cover the side surfaces 41a and 41b of the web 41 of the indoor beam 4, and an outer periphery protruding from the block main body 85 to the outside in the X direction (the side opposite to the indoor beam 4). And an overhanging portion 86 disposed so as to cover the indoor side surface 31 a of the web 31 of the beam 3.

  The block main body 83 of the upper block 81 includes a shape following the shape of the outer surface along the Y direction of the indoor beam 4, and has contact surfaces (opposing surfaces) 83 a and 83 b that contact the indoor beam 4 so as to face each other. The abutting surface 83a is a surface facing upward, and is a surface that abuts against the lower surface 42b of the upper flange 42. The abutting surface 83 b is a surface that abuts against the side surfaces 41 a and 41 b of the web 41 of the indoor beam 4.

  The block main body 83 includes a shape that follows the shape of the outer surface of the mounting bracket 27, and has contact surfaces 83 c and 83 d that face the mounting bracket 27. The abutting surface 83 c is a surface facing upward, and is a surface that abuts against the lower surface of the support piece 27 c of the mounting bracket 27. The abutting surface 83 d is a surface facing the side opposite to the web 41 and is a surface facing the hanging piece 27 b of the mounting bracket 27.

  The region on the upper side of the block body 83 and surrounded by the contact surfaces 83a, 83b, and 83d is filled in the gap between the web 41 of the indoor beam 4 and the hanging piece 27b of the mounting bracket 27 in the X direction. It functions as a filling part.

  Further, the block main body 83 includes a shape that follows the shape of the outer surface of the lower block 82 on the upper surface side of the block main body 85, and comes into contact with the contact surfaces 85f, 85g, and 85h, which will be described later, of the block main body 85. Surfaces 83e, 83f, and 83g are provided. The abutting surface 83e is a surface facing downward, and is a surface that abuts against the abutting surface 85a of the block body 85. The contact surface 85f is a surface that extends downward from the edge of the contact surface 83e on the web 41 side and faces the opposite side of the web 41, and is a surface that contacts and contacts the contact surface 85b of the block body 85. . The contact surface 83g is a surface that extends from the lower end of the contact surface 83f toward the web 41 in the X direction and faces downward, and is a surface that faces the contact surface 85c of the block body 85 and faces the contact surface 83c.

  The overhanging portion 84 of the upper block 81 has contact surfaces 84a and 84b that face each other in the Z direction. The contact surface 84 a is a surface that forms the top surface of the overhang portion 84 and contacts the lower surface of the support piece 27 c of the mounting bracket 27 along the outer circumferential beam 3. The contact surface 84a is formed to be flush with the contact surface 83e of the block main body 83. The abutting surface 84b is a surface that forms the bottom surface of the overhang portion 84 and faces downward, and is a surface that abuts against a later-described abutting surface 86a of the overhang portion 86 of the lower block 82.

  As shown in FIGS. 12 and 13, a lower flange housing groove 87 for housing the lower flange 43 of the indoor beam 4 is formed in the block main body 85 of the lower block 82. The block main body 85 of the lower block 82 includes a shape that follows the outer shape of the indoor beam 4, and has contact surfaces (opposing surfaces) 85 a, 85 b, 85 c, 85 d, and 85 e that are in contact with the indoor beam 4.

  The contact surface 85a is a surface that contacts and faces the side surfaces 41a and 41b of the web 41 of the indoor beam 4. The abutting surface 85 b is a surface that abuts against the upper surface 43 b of the lower flange 43. The contact surface 85 c is a surface that contacts and faces the end surface 43 c of the lower flange 43. The abutting surface 85 d is a surface that abuts against the bottom surface 43 a of the lower flange 43. The abutting surface 85e is a surface that abuts against the opposing heat insulating and airtight blocks 8B and 8A.

  The block body 85 includes a shape that follows the contact surfaces 85e, 83f, and 83g formed on the lower surface side of the block body 83 of the upper block 81, and is opposed to the contact surfaces 83e, 83f, and 83g. The contact surfaces 85f, 85g, and 85h are in contact with each other. The contact surface 85f is a surface facing upward, and is a surface that contacts and contacts the contact surface 83e of the block main body 83. The abutting surface 85g is a surface that extends downward from the edge of the abutting surface 85f on the web 41 side and faces the web 41 side, and is a surface that abuts against the abutting surface 83f of the block main body 83. The contact surface 85 h is a surface that extends from the lower end of the contact surface 85 g toward the web 41 in the X direction and faces upward, and is a surface that contacts the contact surface 83 g of the block main body 83.

  Further, the lower flange receiving groove 87 is a region surrounded by the contact surfaces 85b, 85c, 85d. The block body 85 is formed with a convex portion 88 that protrudes upward from the contact surface 85h. The convex portion 88 is a region surrounded by the contact surfaces 85g and 85f.

  On the upper surface side of the overhanging portion 86 of the lower block 82, a contact surface 86a is formed which forms the top surface of the overhanging portion 86 and abuts against the contact surface 84b of the overhanging portion 84 of the upper block 81. Has been. Abutting surfaces 86b, 86c, 86d are formed on the lower surface side of the overhang portion 86. The contact surface 86b is a surface facing downward on the opposite side to the outer peripheral beam 3, and is a surface that contacts the top surface of the bottom airtight plate 21 (see FIG. 8). The contact surface 86 b is formed so as to be flush with the bottom surface 33 a of the lower flange 33. The contact surface 86 c is a surface that extends upward at the end of the contact surface 86 b on the outer peripheral beam 3 side and abuts against the end surface 33 c of the lower flange 33. The contact surface 86d is a surface that extends from the upper end side of the contact surface 86c toward the web 31 in the Y direction and contacts the upper surface 33b of the lower flange 33.

  Here, airtight projections (not shown) that inhibit the passage of air between the outdoor side and the indoor side are formed in the heat insulating and airtight blocks 8A and 8B, respectively. The airtight projection is formed in the same manner as in the first embodiment. The airtight protrusion includes a first protrusion, a second protrusion, and a third protrusion that protrude from the abutting surface and are in close contact with the indoor beam 4 or the mounting bracket 27 to block the passage of air.

  The first protrusion is continuous in the direction intersecting the Y direction (Z direction or X direction) and is formed so as to inhibit the passage of air along the longitudinal direction (Y direction) of the indoor beam 4. The first protrusion is an airtight protrusion formed by foaming a foamable member poured into the protrusion groove 15.

  The protrusion groove 15 forms a flow path through which the foamable member can flow, and holds the foamable member that functions as an airtight protrusion after the foamable member is foamed and cured. The protrusion groove 15 is continuously formed on the contact surfaces 83a, 83b, 85a, 85b, 85c, 85e of the block bodies 83, 85.

  The block body 83 is formed with a communication hole 16 that communicates with the protrusion groove 15. The communication hole 16 is continuously formed in the X direction so as to penetrate from the side surface 83h of the block main body 83 on the side opposite to the indoor beam 4 to the contact surface 83b on the indoor beam 4 side. A side surface 83h opposite to the indoor beam 4 is a surface facing the contact surface 83b in the X direction.

  The second protrusion 13 is continuous in the Y direction on the contact surface 83 a of the block body 83. The end on the indoor side of the second protrusion 13 is connected to the first protrusion, and the end on the outdoor side of the second protrusion 13 is connected to the third protrusion 14.

  The third projecting portion 14 extends in the X direction on the contact surface 83a of the block body 83, extends in the Z direction on the contact surface 83d, and extends in the X direction on the contact surface 84a of the overhang portion 84. doing.

  Next, the construction method of the heat insulation airtight structure 10B of the beam connection part 1 is demonstrated. First, as shown in FIG. 13, a pair of heat insulating and airtight blocks 8A and 8B are prepared. Next, the upper block 81 of the heat insulating and airtight blocks 8A and 8B is disposed on the side of the indoor beam 4, and the upper side of the upper block 81 is inserted into the gap between the mounting bracket 27 and the web 41 and filled. . In this state, the contact surface 83a contacts the lower surface 32b of the upper flange 32, the contact surface 83b contacts the opposite side surfaces 41a and 41b of the web 41, and the contact surface 83c corresponds to the support piece 27c of the mounting bracket 27. Abutting on the lower surface, the abutting surface 83 d abuts on the hanging piece 27 b of the mounting bracket 27.

  Next, the lower block 82 is disposed on the side of the indoor beam 4, and the lower block 82 is mounted close to the indoor beam 4. At this time, the lower flange 43 of the indoor beam 4 is inserted and fitted into the lower flange receiving groove 87. In this state, the contact surface 85a contacts the opposite side surfaces 41a and 41b of the web 41, the contact surface 85b contacts the upper surface 43b of the lower flange 43, and the contact surface 85c is the end surface 43c of the lower flange 43. The contact surface 85d is in contact with the bottom surface 43a of the lower flange 43, and the contact surface 85e is in contact with the contact surface 85e of the opposed lower block 82.

  Next, a foam member is poured from the communication hole 16 to foam the foam member. The foam member passes through the communication hole 16 and flows into the protrusion groove 15, and foams in the communication hole 16 and the protrusion groove 15. The foaming member foams over the entire length of the projection groove 15 and flows out from the openings 15 a and 15 b at both ends of the projection groove 15. The foaming member in the groove 15 for protrusion foams, and the 1st protrusion part closely_contact | adhered according to the shape of the indoor beam 4 and the attachment bracket 27 is formed.

  In such a heat-insulating and air-tight structure 10B of the beam connecting portion 1 of the present embodiment, it is possible to obtain the same effects as those of the first embodiment.

  In the heat-insulating and air-tight structure 10B having this configuration, the heat-insulating and air-tight blocks 8A and 8B are divided into upper and lower parts and have an upper block 81 and a lower block 82. Therefore, the web 41 of the indoor beam 4 and the mounting bracket 27 The lower block 82 can be disposed under the upper block 81 after the upper portion of the upper block 81 is filled and disposed in the gap between the hanging piece 27b. The lower block 82 can be mounted by moving the lower block 82 in the X direction and inserting the lower flange 43 into the lower flange receiving groove 87. Thereby, the heat insulation airtight blocks 8A and 8B can be easily attached to the indoor beam 4, and the workability can be improved.

  Further, in the heat insulating and airtight structure 10B of the present embodiment, a convex shape (abutment surfaces 85f and 85g) protruding upward is formed on the upper surface side of the lower block 82, and the lower surface side of the upper block 81 is provided with a lower portion. Concave shapes (contact surfaces 83e and 83f) for receiving the convex portions of the block 82 are formed, and the contact surfaces 85g and 83f facing in the X direction are in contact. Therefore, when the foaming member is poured into the groove 15 for protrusion and the foaming member expands, even if the upper block 81 tries to move away from the indoor beam 4, due to the convex shape of the lower block 82, The movement of the upper block 81 is suppressed. Therefore, by restraining the lower block 82, the movement of the upper block 81 can be suppressed, and workability can be improved.

  Moreover, in the heat insulation airtight structure 10B of this embodiment, the uneven | corrugated shape is formed in the contact surface where the upper block 81 and the lower block 82 contact, and the clearance gap between the upper block 81 and the lower block 82 is linear. It is not to become. Therefore, it is difficult for the air on the indoor beam 4 side to pass through the gap between the upper block 81 and the lower block 82. Thereby, airtightness can be improved.

  The present invention is not limited to the above-described embodiments, and various modifications as described below are possible without departing from the gist of the present invention.

  In the above-described embodiment, the outer circumferential beam 3 and the indoor beam 4 whose cross-sectional shape is H-shaped have been described. However, the outer circumferential beam 3 and the indoor beam 4 may be C-shaped steel or other cross-sectional beams.

  Moreover, in the said embodiment, although the airtight protrusion 11 is extended along the Y direction and contains the 2nd protrusion part 13 closely_contact | adhered to the bottom face 6a of the upper floor 6, the 2nd protrusion part 13 is It extends along the Y direction and may be formed so as to be in close contact with the lower surface 42b or the end surface 42c of the upper flange 42.

  Moreover, in the said embodiment, although the groove part 15 for protrusions is formed in the 1st projection part, the 1st projection part is a convex part with a semicircular cross section like the 2nd projection part and the 3rd projection part. Alternatively, it may be a rectangular convex portion, a trapezoidal convex portion, or another cross-sectional convex portion.

  Moreover, the 2nd projection part and the 3rd projection part may be the airtight protrusions formed by foaming a foamable member in the groove part for protrusions similarly to the 1st projection part.

  Further, in the heat insulating and airtight blocks 7 </ b> A and 7 </ b> B, the side surface disposed on the surface facing the web 41 is formed so as to contact the side surface of the web 41, but partially contacts the web 41. It may be formed as follows. For example, only the portion where the first protrusion (protrusion groove 15) is formed may be formed so as to face and approach the web 41. For example, a configuration in which only the airtight protrusion is in close contact with the indoor beam 4 or the upper floor 6 may be employed.

  Moreover, in the said embodiment, although the airtight protrusion 11 is arrange | positioned linearly, the structure by which the airtight protrusion is curved and arrange | positioned in the contact surface may be sufficient. Moreover, in the said embodiment, although the airtight protrusion is arrange | positioned so that one line may continue, the structure by which the airtight protrusion is arrange | positioned twice may be sufficient, for example. Further, the airtight projection is not limited to a linear shape, and may be a belt shape.

  In the above embodiment, the first protrusion (protrusion groove) is disposed at the same position in the Y direction, but the first protrusion is partially disposed at a different position in the Y direction ( It is also possible to include a portion that continues in the Y direction (portion along the longitudinal direction of the indoor beam) so as to connect these portions. Moreover, the structure arrange | positioned so that the 1st projection part may incline with respect to a Z direction may be sufficient.

  In the fourth embodiment, airtight protrusions (or protrusion grooves) are formed on the contact surfaces 83e, 83f, 83g, 85f, 85g, and 85h facing each other in the block bodies 83 and 85 that are divided vertically. The formed structure may be sufficient.

  DESCRIPTION OF SYMBOLS 1 ... Beam connection part, 2 ... Outer wall, 3 ... Outer beam, 4 ... Indoor beam, 6,26 ... Upper floor, 6a, 26a ... Bottom, 7A, 7B, 7C, 7D, 8A, 8B ... Thermal insulation airtight block, DESCRIPTION OF SYMBOLS 10,10B ... Thermal insulation airtight structure, 15 ... Groove part for protrusion, 20 ... Airtight member, 21 ... Bottom airtight board, 22 ... Side part airtight board, 31, 41 ... Web, 41a, 41b ... Side of web (the number of indoor beam , Outer surfaces along two directions), 32, 42 ... upper flange, 42b ... lower surface of the upper flange (outer surface along the second direction of the indoor beam), 42c ... end face of the upper flange (outside along the second direction of the indoor beam) Surface), 33, 43 ... lower flange, 43a ... bottom surface of lower flange (outer surface along the second direction of the indoor beam) 71, 83, 85 ... block body, 72, 84, 86 ... overhang, 73 ... upper Flange housing recess, 74, 87 ... lower flange housing groove, 81 ... upper flange Click, 82 ... lower block, X ... X direction (first direction), Y ... Y direction (second direction).

Claims (5)

  1. Insulation of the beam connecting portion to which the outer peripheral beam extending in the first direction along the outer wall of the building and the indoor beam crossing in the first direction and extending in the second direction toward the inside of the building are connected An airtight structure,
    A heat-insulating and air-tight block covering an outer surface along the second direction of the indoor beam;
    The heat insulating and airtight block has a facing surface facing the outer surface,
    The opposing surface is formed with an airtight projection that protrudes toward the indoor beam and is arranged so as to intersect the second direction.
    A heat-insulating and air-tight structure of a beam connecting portion in which the airtight projection is in close contact with the outer surface of the indoor beam.
  2. The opposing surface is provided with a groove for forming the airtight projection,
    The heat-insulating and airtight structure of the beam connecting portion according to claim 1, wherein the airtight projection is formed by foaming a foamable member poured into the groove.
  3. An airtight member that covers the outer peripheral beam from the indoor side,
    The hermetic member is spaced apart from the indoor beam in the first direction;
    The heat-insulating and air-tight block has a projecting portion that projects in the first direction and contacts the air-tight member,
    3. The heat-insulating and air-tight structure of the beam connecting portion according to claim 1, wherein the projecting portion and the airtight member have flat surfaces that are flush with each other in adjacent portions adjacent to each other on the indoor side.
  4.   The heat insulation of the beam connection part as described in any one of Claims 1-3 in which the flange accommodation groove | channel in which the lower flange of the said indoor beam is inserted is formed in the side surface by the side of the said indoor beam of the said heat insulation airtight block. Airtight structure.
  5. The upper floor supported by the indoor beam, the bottom of the upper floor is disposed below the upper flange of the indoor beam,
    The upper floor is disposed close to the indoor beam in the first direction;
    The heat insulating airtight block is divided into a plurality of parts in the vertical direction, and has an upper block disposed on the upper side and a lower block disposed on the lower side,
    5. The beam connecting portion according to claim 1, wherein the upper block includes a filling portion that fills a gap between a web of the indoor beam and the upper floor in the first direction. Insulated airtight structure.
JP2015099102A 2015-05-14 2015-05-14 Insulated airtight structure of beam connection Active JP6530960B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015099102A JP6530960B2 (en) 2015-05-14 2015-05-14 Insulated airtight structure of beam connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015099102A JP6530960B2 (en) 2015-05-14 2015-05-14 Insulated airtight structure of beam connection

Publications (2)

Publication Number Publication Date
JP2016216907A true JP2016216907A (en) 2016-12-22
JP6530960B2 JP6530960B2 (en) 2019-06-12

Family

ID=57578045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015099102A Active JP6530960B2 (en) 2015-05-14 2015-05-14 Insulated airtight structure of beam connection

Country Status (1)

Country Link
JP (1) JP6530960B2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0681415A (en) * 1992-08-28 1994-03-22 Jiyoisuto:Kk Construction of steel structure
JPH09158333A (en) * 1995-12-11 1997-06-17 Daishiyuu Kensetsu:Kk Method for holding airtighteness of joint part of lumber
JPH1162039A (en) * 1997-08-22 1999-03-05 Matsushita Electric Works Ltd Heat insulation and airtight structure of combined beam
JP2009299290A (en) * 2008-06-10 2009-12-24 Asahi Kasei Homes Co Building

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0681415A (en) * 1992-08-28 1994-03-22 Jiyoisuto:Kk Construction of steel structure
JPH09158333A (en) * 1995-12-11 1997-06-17 Daishiyuu Kensetsu:Kk Method for holding airtighteness of joint part of lumber
JPH1162039A (en) * 1997-08-22 1999-03-05 Matsushita Electric Works Ltd Heat insulation and airtight structure of combined beam
JP2009299290A (en) * 2008-06-10 2009-12-24 Asahi Kasei Homes Co Building

Also Published As

Publication number Publication date
JP6530960B2 (en) 2019-06-12

Similar Documents

Publication Publication Date Title
US9523193B2 (en) Fire-rated joint system
US20150337530A1 (en) Fire-rated joint system
US10077550B2 (en) Fire-rated joint system
KR101147446B1 (en) Angle assembly for insulator construction and construction method using the same
CN103210287B (en) Ultrasonic flow rate measurement device
KR101640229B1 (en) The water tank is equipped with an internal non-reinforcement and water breaker device
KR20190000830U (en) gap holding device for insulation
RU2351727C2 (en) Section and method for its manufacture
US20170175386A1 (en) Fire-rated joint system
KR101164495B1 (en) Manufacturing method of water tank which have concrete outer wall
JP2009275390A (en) Base plate for column base, and column base structure using the same
KR101618695B1 (en) Deck Plate with Terrace Type Insulator
WO2013039128A1 (en) Joining structure of beam and column, and joining member
KR101571468B1 (en) Curtain Wall and Its Installation Method
KR101019178B1 (en) Installation structure for secondary barrier of upper liquid dome
KR20170081811A (en) Ceramic Insulation Panel And Both Insulation Mold Method Using the Same
JP2010095926A (en) Heat insulating panel and connection structure of heat insulating panel
JP4801401B2 (en) Thermal insulation panel and building outer wall structure
KR102054196B1 (en) A building element for a structural building panel
JP2014508231A (en) A generally deformable guide for partitions
JP2009275500A (en) Interior backing structure, and method of forming interior backing structure
US20050055967A1 (en) Structural beam
JP6283335B2 (en) Exterior structure
KR20020037255A (en) Fire and soundproof panel
KR20140100820A (en) A soundproofing pannel assembly

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20180315

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20181211

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20181212

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20190206

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20190507

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190520

R150 Certificate of patent or registration of utility model

Ref document number: 6530960

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150