JP7156603B2 - Insulation support structure and insulation support method - Google Patents

Description

TECHNICAL FIELD The present invention relates to an insulation support structure and an insulation support method.

Patent Literature 1 below discloses a technique related to a heat insulating material support that is attached to a horizontal member such as a floor joist (hereinafter referred to as a "steel frame beam") and supports a plate-shaped heat insulating material. In this prior art, the heat insulating material support includes a vertical plate portion arranged to abut on the side wall portion of the steel beam, and a lower horizontal plate portion extending horizontally from the lower end of the vertical plate portion. The load of the plate-shaped heat insulating material is received by providing rib-shaped projections and reinforcing portions formed by bending triangular arms on the lower horizontal plate portion.

Japanese Patent Application Laid-Open No. 2009-30406

However, in the above prior art, no consideration is given to countermeasures for suppressing heat bridges that locally conduct heat under the steel beams, so-called countermeasures against heat bridges. For this reason, in the prior art described above, if an attempt is made to cover the underside of the steel beam with a heat insulating material (hereinafter referred to as "beam heat insulating material") in order to take measures against heat bridging, the lower horizontal plate portion of the heat insulating material support is not included. It is conceivable that the top portion of the reinforcing portion formed in the shape of a triangular arm is used as a hook portion, and the under beam heat insulating material is held via the hook portion.

In the prior art described above, there is a height difference between the lower horizontal plate portion forming the base portion of the reinforcing portion and the hook forming the top portion of the reinforcing portion. Therefore, a gap is generated between the plate-shaped heat insulating material provided on the upper side of the lower horizontal plate portion and the under-beam heat insulating material provided on the lower side of the lower horizontal plate portion. Therefore, the steel beam is exposed through this gap, and it is difficult to take measures against thermal bridges under the steel beam in the prior art.

SUMMARY OF THE INVENTION In view of the above facts, it is an object of the present invention to provide a heat insulating material support structure and a heat insulating material support method capable of effectively taking measures against thermal bridges of steel beams arranged under the floor.

A heat insulating material support structure according to a first aspect of the present invention includes: a fixed part fixed to a steel beam provided under a floor; and a support portion formed at the free end of the support piece, and a heat insulating material support provided in contact with the side wall portion of the steel frame beam to insulate between the underfloor and the above floor. 1 a heat insulating material, which is formed of a compressible material and can be supported by the support portion, is compressed while being supported by the support portion, and is provided continuously with the first heat insulating material; and a second insulation covering the lower portion.

A heat insulating material support structure according to a first aspect of the present invention includes a heat insulating material support that includes a fixing portion and a support portion. The fixed part is fixed to a steel frame beam arranged under the floor. Further, the fixed portion is provided with a support piece extending horizontally in a direction away from the fixed portion, and the free end portion of the support piece is provided with the support portion. .

On the other hand, the side walls of the steel frame beams are provided with first heat insulating materials in contact with each other to insulate between the underfloor and the above floor. That is, the side walls of the steel beam are covered with the first heat insulating material. A second heat insulating material made of a compressible material can be supported by the supporting portion of the heat insulating material support. The second heat insulating material is arranged in a compressed state by pressing the second heat insulating material against the first heat insulating material while being supported by the supporting portion of the heat insulating material support.

Therefore, it is possible to maintain a state in which the first heat insulating material and the second heat insulating material are continuously provided while the second heat insulating material is supported by the support portion of the heat insulating material support. As a result, the side walls and the lower portion of the steel frame beam are covered with the first heat insulating material and the second heat insulating material. That is, in this aspect, it is possible to prevent a gap from being formed between the first heat insulating material and the second heat insulating material. be able to.

A heat insulating material support structure according to a second aspect of the present invention is the heat insulating material supporting structure according to the first aspect of the present invention, in which the second heat insulating material can be held, and the second heat insulating material is held. A holding member is provided that can be supported by the support.

In the insulating material support structure according to the second aspect of the present invention, a holding member capable of holding the second insulating material is provided. The holding member can be supported by the support portion of the heat insulating material support while holding the second heat insulating material. By supporting the holding member by the supporting portion of the heat insulating material support, the second heat insulating material is arranged in a compressed state with respect to the first heat insulating material.

A heat insulating material support structure according to a third aspect of the present invention is the heat insulating material support structure according to the first aspect or the second aspect of the present invention, wherein the fixing portion includes a first contact capable of coming into contact with the lower surface of the steel beam. It is configured including a contact portion.

In the heat insulating material support structure according to the third aspect of the present invention, the fixed portion of the heat insulating material support includes the first contact portion that can contact the lower surface of the steel beam. The heat insulating material support is attached and fixed to the steel beam from the lower side of the steel beam. Therefore, in this aspect, it is possible to attach the second heat insulating material after construction of the building, and it is also possible to replace the second heat insulating material after construction of the building.

In addition, in addition to the case where the first contact portion directly abuts against the lower surface of the steel beam, the “possible to contact” here means that the lower surface of the steel beam is indirectly contacted via another member. A case where the first contact portion contacts with is also included.

A heat insulating material support structure according to a fourth aspect of the present invention is the heat insulating material supporting structure according to the third aspect of the present invention, wherein the fixing portion is inserted between the first heat insulating material and the side wall portion of the steel beam. and further includes a pressing wall portion that is pressed toward the side wall portion of the steel frame beam by the first heat insulating material.

In the insulating material support structure according to the fourth aspect of the present invention, the fixing portion of the insulating material support further includes a pressing wall portion inserted between the first insulating material and the side wall portion of the steel beam. The pressing wall portion is inserted between the first heat insulating material and the side wall portion of the steel beam, and is pressed from the first heat insulating material toward the side wall portion of the steel beam. .

As described above, the heat insulating material support is abutted and fixed to the lower surface of the steel beam from the lower side of the steel beam. When abutting, the pressing wall portion of the heat insulating material support is inserted between the side wall portion of the first heat insulating material and the steel frame beam. Thus, in a state in which the pressing wall portion is inserted between the first heat insulating material and the side wall portion of the steel beam, the pressing wall portion is pressed toward the side wall portion of the steel beam by the first heat insulating material. .

Thereby, a frictional force is generated between the pressing wall portion and the first heat insulating material. This frictional force enables the first heat insulating material to be supported. Therefore, the load of the first heat insulating material on the support piece of the heat insulating material support is reduced.

As a result, in the support piece of the heat insulating material support, when the first heat insulating material is supported by the support piece, the bending deformation of the support piece directed downward from the fixed portion of the heat insulating material support is reduced. be done. As a result, it is possible to prevent the support piece of the heat insulating material support from bending downward, creating a gap between the first heat insulating material and the second heat insulating material, and exposing the steel frame beam.

A heat insulating material support structure according to a fifth aspect of the present invention is the heat insulating material support structure according to the first aspect or the second aspect of the present invention, wherein the fixing portion is a second contact capable of coming into contact with the upper surface of the steel beam. It is configured including a contact portion.

In the heat insulating material support structure according to the fifth aspect of the present invention, since the fixing portion of the heat insulating material support is configured to include the second contact portion that can contact the upper surface of the steel beam, in this aspect, The heat insulating material support is attached and fixed to the steel beam from the upper side of the steel beam. That is, in this aspect, since the heat insulating material support is supported with the second contact portion in contact with the upper surface of the steel frame beam, the heat insulating material support is used to prevent falling. There is no need for an adhesive or the like for temporarily fixing the tool to the steel frame beam, and workability is good.

In addition, in addition to the case where the second contact portion directly contacts the upper surface of the steel beam, the term “possible to contact” here means that the upper surface of the steel beam is indirectly contacted via another member. Also includes the case where the second contact portion comes into contact with.

A heat insulating material support structure according to a sixth aspect of the present invention is the heat insulating material supporting structure according to the fifth aspect of the present invention, wherein the fixing portion is arranged between the first heat insulating material and the side wall portion of the steel beam. and is configured to further include a pressing wall portion that is pressed toward the side wall portion of the steel frame beam by the first heat insulating material.

In the heat insulating material support structure according to the sixth aspect of the present invention, the fixed portion of the heat insulating material support further includes a pressing wall portion that can be arranged between the first heat insulating material and the side wall portion of the steel beam. The pressing wall portion is arranged between the first heat insulating material and the side wall portion of the steel beam, and is pressed from the first heat insulating material toward the side wall portion of the steel beam. .

As described above, the heat insulating material support is abutted and fixed to the upper surface of the steel beam from the upper side of the steel beam. When abutting, the pressing wall portion of the insulating material support is arranged between the first insulating material and the side wall portion of the steel beam. In this way, in a state in which the pressing wall portion is arranged between the first heat insulating material and the side wall portion of the steel beam, the pressing wall portion is pressed toward the side wall portion of the steel beam by the first heat insulating material. .

Thereby, a frictional force is generated between the pressing wall portion and the first heat insulating material. This frictional force enables the first heat insulating material to be supported. Therefore, the load of the first heat insulating material on the support piece of the heat insulating material support is reduced. As a result, in the support piece of the heat insulating material support, when the first heat insulating material is supported by the support piece, the bending deformation of the support piece directed downward from the fixed portion of the heat insulating material support is reduced. It becomes possible to

A heat insulating material supporting method according to a seventh aspect of the present invention includes: a pressing wall portion that can abut against a side wall portion of a steel beam provided under a floor; A support portion formed at a free end of a support piece extending horizontally toward a direction, and a heat insulating material supporting method using a heat insulating material support, comprising: a first heat insulating material placement step of arranging a first heat insulating material for heat insulation in contact with a side wall portion of the steel beam; A heat insulating material support fixing step of fixing the heat insulating material support to the steel frame beam by inserting it between the heat insulating material supports, and holding a second heat insulating material that covers the lower part of the steel frame beam and is pressed and compressed against the first heat insulating material. and a second heat insulating material holding step of supporting the holding member on the support portion.

In the heat insulating material supporting method according to the seventh aspect of the present invention, a heat insulating material support that includes a pressing wall portion and a support portion is used. The pressing wall portion is capable of coming into contact with the side wall portion of the steel beam provided under the floor, and the support portion is a support piece that is connected to the pressing wall portion and extends horizontally in a direction away from the pressing wall portion. is formed at the free end of the

In this aspect, in the step of placing the first heat insulating material, the first heat insulating material is placed in contact with the side wall portion of the steel frame beam. Next, in the heat insulating material support fixing step, the pressing wall portion of the heat insulating material support is inserted from below between the side wall portion of the steel beam and the first heat insulating material to fix the heat insulating material support to the steel beam. Then, in the second heat insulating material holding step, the holding member that covers the lower part of the steel frame beam and holds the second heat insulating material that is pressed and compressed against the first heat insulating material is supported by the supporting portion.

As described above, in this aspect, the heat insulating material support is attached to the steel beam from below. By compressing the second compression member during work, it is possible not to interfere with the work.

A heat insulating material supporting method according to an eighth aspect of the present invention includes: a fixed part fixed to a steel beam provided under a floor; and a support portion formed at a free end of a support piece, and a heat insulating material support method using a heat insulating material support, wherein the heat insulating material support is attached to the steel beam from above. A heat insulating material support fixing step of fixing the heat insulating material support to the steel beam, and disposing a first heat insulating material for insulating between the underfloor and the above floor while being in contact with the side wall portion of the steel beam. and a second heat insulating material holding step of causing the support portion to support a holding member that holds a second heat insulating material that covers the lower part of the steel frame beam and is pressed and compressed against the first heat insulating material. , is composed of

In the method for supporting a heat insulating material according to the eighth aspect of the present invention, a heat insulating material support that includes a fixing portion and a support portion is used. The fixed part is fixed to a steel frame beam arranged under the floor. Further, the support portion is formed at a free end portion of a support piece that connects with the fixing portion and extends horizontally in a direction away from the fixing portion.

In this aspect, in the heat insulating material support fixing step, the heat insulating material support is attached to the steel beam from above and fixed to the steel beam. Next, in the first heat insulating material placement step, the first heat insulating material is placed in contact with the side wall of the steel frame beam. Then, in the second heat insulating material holding step, the holding member that covers the lower part of the steel frame beam and holds the second heat insulating material that is compressed by being pressed against the first heat insulating material is supported by the supporting portion.

As described above, in this aspect, since the heat insulating material support is attached to the steel frame beam from above, the heat insulating material support can be supported by the steel frame simply by placing the fixed portion on the steel frame. It becomes possible to

As described above, the heat insulating material support structure and the heat insulating material supporting method according to this aspect have the excellent effect of being able to effectively take measures against thermal bridging of steel beams arranged under the floor.

1 is a cross-sectional view showing a configuration of a floor of a unit building to which a heat insulating material support structure according to this embodiment is applied; FIG. It is a perspective view which shows the structure of the heat insulating material support tool used for the heat insulating material support structure which concerns on 1st Embodiment. It is a perspective sectional view showing composition of a heat insulating material support structure concerning a 1st embodiment. (A) is a cross-sectional view showing a state in which the underfloor heat insulating material is placed in contact with the side wall of the floor beam, and (B) is a cross-sectional view showing the heat insulating material supporting method according to the first embodiment. It is sectional drawing which shows the state before inserting a heat insulating material support between a beam and an underfloor heat insulating material. (A) is a cross-sectional view showing a state after a heat insulating material support is inserted between a floor joist and an underfloor heat insulating material, and (B) shows a heat insulating material supporting method according to the first embodiment. FIG. 5 is a cross-sectional view showing a state before a string member holding an under beam heat insulating material is locked to a heat insulating material support. It is sectional drawing which shows the state after making the heat insulating material support tool latch the string member holding the heat insulating material under the beam which shows the heat insulating material support method which concerns on 1st Embodiment. It is a perspective view which shows the modification of the heat insulating material support used for the heat insulating material support structure which concerns on 1st Embodiment. (A) is a perspective view showing the configuration of a heat insulating material support used in a heat insulating material support structure according to a second embodiment, and (B) is a partially enlarged perspective view showing an enlarged main part of (A). is. (A) is a perspective view showing a first modification of the heat insulating material support used in the heat insulating material support structure according to the second embodiment, and (B) is an enlarged part of the main part of (A). It is an expansion perspective view. (A) is a perspective view showing a second modification of the heat insulating material support used in the heat insulating material support structure according to the second embodiment, and (B) is an enlarged part of the main part of (A). It is an expansion perspective view. (A) is a perspective view showing a third modification of the heat insulating material support used in the heat insulating material support structure according to the second embodiment, and (B) is an enlarged part of the main part of (A). It is an expansion perspective view. (A) is a perspective view showing a fourth modification of the heat insulating material support used in the heat insulating material support structure according to the second embodiment, and (B) is an enlarged part of the main part of (A). It is an expansion perspective view. (A) is a perspective view showing a fifth modification of the heat insulating material support used in the heat insulating material support structure according to the second embodiment, and (B) is an enlarged part of the main part of (A). It is an expansion perspective view. FIG. 11 is a perspective view showing the configuration of a heat insulating material support used in the heat insulating material supporting structure according to the third embodiment; It is a perspective sectional view which shows the structure of the heat insulating material support structure which concerns on 3rd Embodiment. (A) is a cross-sectional view showing a state before an underfloor heat insulating material is arranged between floor girders, and (B) is a floor girder and a floor girder, showing a heat insulating material supporting method according to a third embodiment. FIG. 4 is a sectional view showing a state after the underfloor heat insulating material is arranged between the floor girders and a state before fixing the heat insulating material support to the floor girders. (A) is a cross-sectional view showing a state after fixing a heat insulating material support to a floor girder, and (B) is a cross-sectional view showing a heat insulating material supporting method according to a third embodiment; FIG. 10 is a cross-sectional view showing a state before locking the string member to the heat insulating material support. It is sectional drawing which shows the state after making the heat insulating material support tool latch the string member holding the heat insulating material under the beam which shows the heat insulating material support method which concerns on 3rd Embodiment. It is a perspective view which shows the structure of the heat insulating material support tool used for the heat insulating material support structure which concerns on 4th Embodiment. It is a sectional view showing composition of a heat insulating material support structure concerning a 4th embodiment.

An embodiment of the floor of a unit building to which the heat insulating material support structure according to the present embodiment is applied will be described below with reference to the drawings.

<First embodiment>
(Configuration of heat insulating material support structure)

As shown in FIG. 1, for example, the floor 16 of the building unit 12 that forms part of the skeleton of the unit building 10 will be described. First, although not shown, the building unit 12 has a substantially box shape, and square tube-shaped pillars having the same length are erected at the four corners of the building unit 12 . In the floor section 16 of the building unit 12, adjacent pillars along the girder direction (longitudinal direction; arrow A direction) of the building unit 12 are bridged by floor girders (not shown). Columns adjacent to each other along the lateral direction (the direction orthogonal to the arrow A direction) are bridged by floor beams (steel beams) 18 . In the building unit 12, a plurality of small floor beams (steel frame beams) 20 are bridged at predetermined intervals between floor girders (not shown) facing each other in the gable direction.

The plurality of floor girders 18 and floor small girders 20 have substantially the same upper surface height, and floor joists 22 are provided on the floor girders 18 and floor small girders 20, respectively. Between the floor girders 18 and the floor small beams 20, and between the floor small beams 20 and the floor small beams 20, which are adjacent including the joist 22, an underfloor heat insulating material (first heat insulating material ) 24 are arranged respectively. The underfloor heat insulating material 24 is formed in a plate shape from a foam heat insulating material made of synthetic resin foam such as urethane foam, and has a rectangular plate shape with a predetermined thickness.

Furthermore, an underfloor material 26 is provided on the joists 22 . For example, a particle board is used as the underfloor material 26 , and a floor finishing material such as flooring is laid on the underfloor material 26 although not shown.

On the other hand, to the lower part 21 of the floor beam 20, a heat insulating material support fitting (heat insulating material support) 28, which will be described later, is fixed. A compressible under-beam heat insulating material (second heat insulating material) 30 made of fiber such as glass wool or rock wool is supported by the heat insulating material support bracket 28 . The under-beam heat insulating material 30 is arranged in contact with the under-floor heat insulating material 24, and the under-beam heat insulating material 30 and the under-floor heat insulating material 24 are provided continuously. That is, the under-beam heat insulating material 30 is arranged in a state in which no gap is provided between the under-floor heat insulating material 24 and the under-floor heat insulating material 24 . Note that the under-beam heat insulating material 30 is not limited to a fiber-based heat insulating material as long as it is a compressible heat insulating material.

(Configuration of heat insulating material support)
Here, the configuration of the heat insulating material support according to this embodiment will be described.

FIG. 2 shows a perspective view of the heat insulating material support fitting 28 according to the present embodiment as viewed obliquely from the front right side. The heat insulating material support fitting 28 shown in FIG. 2 is formed by pressing a rectangular metal plate. As the metal plate, for example, it is possible to use various metal materials such as carbon steel, alloy steel such as stainless steel, and non-ferrous metal such as copper-nickel alloy, the surface of which is coated with an antirust coating. In this embodiment, the heat insulating material support bracket 28 is made of metal, but is not necessarily limited to metal as long as it can support the under beam heat insulating material 30 . For example, it may be made of fiber-reinforced resin or the like.

The heat insulating material support fitting 28 includes a fixing portion 32, a peripheral portion 34A of the locking hole 34 and a peripheral portion 36A of the locking hole 36 as supporting portions. The fixed part 32 is provided substantially in the center in the longitudinal direction (arrow L) of the heat insulating material support bracket 28, and as shown in FIGS. It includes a contact portion (first contact portion) 39 and pressing wall portions 37 and 38 that are pressed by the underfloor heat insulating material 24 toward the side wall portion 20B of the small floor beam 20 . Further, the pressing wall portions 37 and 38 include vertical wall portions (pressing wall portions) 40 and 42 that can contact the side wall portion 20B of the floor beam 20, and spring plate portions that can contact the underfloor heat insulating material 24 ( pressing walls) 44 and 46.

The contact portion 39 constitutes the lower portion of the heat insulating material support fitting 28 and has a substantially rectangular shape in plan view. The contact portion 39 is adapted to contact and be fixed to the lower surface 20A of the small floor beam 20, as described above. For example, in this embodiment, the contact portion 39 is fixed to the lower surface 20A of the floor beam 20 via an adhesive 45 (see FIG. 4B) or the like. That is, in this case, the contact portion 39 indirectly contacts the lower surface 20A of the small floor beam 20 via the adhesive 45 or the like, but this aspect also includes such a case.

The vertical wall portions 40 and 42 are formed in a rectangular shape when viewed from the longitudinal direction (arrow L) of the heat insulating material support fitting 28, and extend upward from both ends 39A and 39B of the contact portion 39, respectively. They stand up toward each other and are slightly inclined toward the direction of approaching each other toward the upper side.

Formed from the upper end 40A of the vertical wall portion 40 is a spring plate portion 44 that is slightly inclined in a direction away from the vertical wall portion 40 toward the lower side. The spring plate portion 44 has a rectangular shape when viewed from the longitudinal direction (arrow L) of the heat insulating material support bracket 28, and is set so that the underfloor heat insulating material 24 is pressed against the spring plate portion 44. there is

A support piece 48 having a rectangular shape in a plan view extends substantially horizontally from the lower end 44A of the spring plate portion 44 in a direction away from the spring plate portion 44 . At the free end of the support piece 48, there is formed a rectangular locking hole 34 whose longitudinal direction is the width direction (arrow W) substantially orthogonal to the longitudinal direction (arrow L) of the heat insulating material support fitting 28. It is

Similar to the vertical wall portion 40, a spring plate portion 46 is formed from an upper end 42A of the vertical wall portion 42 and is slightly inclined in a direction away from the vertical wall portion 42 toward the lower side. The spring plate portion 46 has a rectangular shape when viewed from the longitudinal direction (arrow L) of the heat insulating material support fitting 28, and is set so that the underfloor heat insulating material 24 is pressed against the spring plate portion 46. there is

Further, from the lower end 46A of the spring plate portion 46, a support piece 50 having a rectangular shape in plan view extends substantially horizontally in a direction away from the spring plate portion 46, and the free end portion of the support piece 50 extends. is formed with a rectangular locking hole 36 whose longitudinal direction is the width direction (arrow W) of the heat insulating material support fitting 28 . The vertical lengths of the spring plate portions 44 and 46 are set to be shorter than the vertical lengths of the vertical wall portions 40 and 42, respectively.

On the other hand, the under-beam heat insulating material 30 provided on the side of the lower part 21 of the floor beam 20 is formed of fiber such as glass wool or rock wool and is compressible, and is a string member (holding member) formed of vinyl tie or the like. 52. A hook 54 is provided at an end portion 52A of the string member 52, and the hook 54 is engaged with peripheral portions 34A and 36A of the engaging holes 34 and 36 formed in the support pieces 48 and 50, respectively. It is possible.

In this way, in a state in which the hooks 54 of the string members 52 holding the under-beam heat insulating material 30 are engaged with the peripheral portions 34A and 36A of the engaging holes 34 and 36 of the heat insulating material support bracket 28, respectively, the under-beam heat insulating material The material 30 is supported by the insulation support fittings 28 . In this state, the under-beam heat insulating material 30 contacts the under-floor heat insulating material 24, and the under-beam heat insulating material 30 and the under-floor heat insulating material 24 are continuously provided. That is, the under-beam heat insulating material 30 is arranged in a state in which no gap is provided between the under-floor heat insulating material 24 and the underfloor heat insulating material 24 .

Note that the hook 54 is not necessarily required, and although not shown, after the end 52A of the string member 52 is inserted into the locking holes 34 and 36, the end 52A of the string member 52 is attached to the string member 52. The string member 52 may be locked to the peripheral portions 34A, 36A of the locking holes 34, 36 by winding it around itself. Moreover, the string member 52 may be made of a member having stretchability.

(Action and effect of heat insulating material support)
Next, the operation and effects of the heat insulating material support according to this embodiment will be described.

As shown in FIG. 1, in the floor section 16 of the building unit 12, a subfloor material 26 is provided on the joists 22 provided on the floor girders 18 and the floor girders 20. A floor finishing material (not shown) is laid on the .

In this embodiment, first, between the small floor girders 20 and the small floor girders 20, and between the small floor girders 20 and the large floor girders 18, as shown in FIG. The underfloor heat insulating material 24 is arranged in abutted state. That is, the side wall portion 20B of the floor beam 20 is covered with the underfloor heat insulating material 24 .

Next, as shown in FIG. 4(B), the heat insulating material support fittings 28 are attached to the floor beams 20 from below. Specifically, as shown in FIGS. 4B and 5A, pressing walls 37 and 38 (vertical walls 40 and 42 and spring plates 44 and 46) of the heat insulating material support bracket 28 are pressed. is inserted between the side wall portion 20B of the floor beam 20 and the underfloor heat insulating material 24.

Here, for example, an adhesive 45 is applied to the lower surface 20A of the floor beam 20 or the contact portion 39 of the heat insulating material support metal fitting 28, and the vertical wall portions 40 and 42 of the heat insulating material support metal fitting 28 and the springs are applied. When the plate portions 44 and 46 are inserted between the side wall portion 20B of the floor beam 20 and the underfloor heat insulating material 24, the contact portion 39 of the heat insulating material support fitting 28 is pressed against the lower surface of the floor beam 20 via the adhesive 45. 20A. As a result, the heat insulating material support fitting 28 is fixed to the lower portion 21 of the small floor beam 20 via the contact portion 39 of the heat insulating material support fitting 28 and the lower surface 20A of the small floor beam 20 (the heat insulating material support fitting fixing step).

Although not shown, an adhesive is also applied to the inner surfaces of the vertical wall portions 40 and 42, and the vertical wall portions 40 and 42 of the heat insulating material support bracket 28 are attached to the side walls of the floor beam 20 via the adhesive. It may be fixed to the part 20B

Next, as shown in FIGS. 5B and 6, the under-beam heat insulating material 30 held by the string members 52 is locked to the heat insulating material support bracket 28. Next, as shown in FIG.

Specifically, in this embodiment, the peripheral portion 34A of the locking hole 34 and the peripheral portion 36A of the locking hole 36 provided at the free ends of the support pieces 48 and 50 of the heat insulating material support fitting 28 are , the hooks 54 provided on the ends 52A of the string members 52 are locked (second heat insulating material holding step). In this state, the under-beam heat insulating material 30 contacts the under-floor heat insulating material 24 .

As a result, in the present embodiment, the underfloor heat insulating material 30 and the underfloor heat insulating material 24 are continuously provided, and the underfloor heat insulating material 24 covers the side wall portion 20B of the small floor beam 20, and the underfloor heat insulating material 30 Including the lower surface 20A of the floor beam 20, the lower part 21 of the floor beam 20 is covered.

By the way, in this embodiment, as shown in FIGS. 2 and 6, the heat insulating material support fitting 28 includes a fixing portion 32, a peripheral portion 34A of the locking hole 34 as a supporting portion, and a peripheral portion of the locking hole 36. 36A, and the fixed part 32 is fixed to the floor beam 20 arranged under the floor 56. As shown in FIG.

Here, the fixed portion 32 is provided with support pieces 48 and 50 that extend horizontally in a direction away from the fixed portion 32 and away from the fixed portion 32, respectively. They are provided at the free ends of the support pieces 48, 50, respectively. On the other hand, as described above, although not shown, the underfloor heat insulating material 24 is provided between the floor girders 18 (see FIG. 1) and the floor small girders 20 (see FIG. 1), and between the floor small girders 20 and the floor small girders 20. It is provided in contact with both side wall portions 20B of the floor beam 20 . A peripheral portion 34A of the locking hole 34 and a peripheral portion 36A of the locking hole 36 of the heat insulating material support fitting 28 can support the string member 52 that holds the under beam heat insulating material 30 .

The under-beam heat insulating material 30 is compressible, and the hooks 54 of the string members 52 holding the under-beam heat insulating material 30 are attached to the peripheral portion 34A of the locking hole 34 of the heat insulating material support bracket 28 and the locking hole 36. The underfloor heat insulating material 30 can be arranged in a state of being pressed and compressed against the underfloor heat insulating material 24 in a state of being engaged with the peripheral portion 36A.

Therefore, in a state where the hooks 54 of the string members 52 holding the under-beam heat insulating material 30 are locked to the peripheral portion 34A of the locking hole 34 and the peripheral portion 36A of the locking hole 36 of the heat insulating material support bracket 28, respectively, A state in which the heat insulating material 24 and the under beam heat insulating material 30 are continuously provided can be maintained. As a result, the underfloor heat insulating material 24 and the under-beam heat insulating material 30 keep the lower part 21 of the floor beam 20 including the side wall portion 20B and the lower surface 20A of the floor beam 20 covered. . That is, in this embodiment, it is possible to prevent the formation of a gap between the underfloor heat insulating material 24 and the under-beam heat insulating material 30, and the underfloor heat insulating material 24 and the under-beam heat insulating material 30 prevent the floor beam 20 from being formed. Thermal bridge measures can be taken.

As described above, in the present embodiment, the under-beam heat insulating material 30 is used as one of the members for taking measures against thermal bridges of the floor beams 20. The dimension W1 (see FIG. 6) along the width direction of the floor beam 20 differs depending on the material used for the lower heat insulating material 30 . Since this dimension W1 is determined by the length of the support pieces 48 and 50 of the heat insulating material support bracket 28, when the under beam heat insulating material 30 with high heat insulating performance is used, when the under beam heat insulating material 30 with low heat insulating performance is used , the length of the support pieces 48, 50 is reduced. That is, in the present embodiment, the support pieces 48 and 50 are set in advance to have a length necessary for taking measures against thermal bridges of the floor beams 20 .

In this embodiment, the fixing portion 32 of the heat insulating material support fitting 28 includes a contact portion 39 capable of coming into contact with the lower surface 20A of the floor beam 20, and the heat insulating material support fitting 28 is attached to the lower surface 20A of the floor beam. It is attached and fixed to the small floor beam 20 from the lower side of the beam 20. - 特許庁

Therefore, in this embodiment, it is possible to install the under beam heat insulating material 30 after the construction of the building, and it is also possible to replace the under beam heat insulating material 30 after the construction of the building. In particular, in the present embodiment, since the under-beam heat insulating material 30 is compressible, when working under the floor 56, compressing the under-beam heat insulating material 30 can prevent it from interfering with the work. Work efficiency can be improved.

In addition, in this embodiment, locking holes 34 and 36 are formed in the heat insulating material support bracket 28, and when attaching the under beam heat insulating material 30, a peripheral portion 34A of the locking hole 34 and a peripheral portion 34A of the locking hole 36 are mounted. Since the hooks 54 of the string members 52 that hold the under-beam heat insulating material 30 are simply engaged with the portions 36A, workability is good. Note that the heat insulating material support fittings 28 may be attached to the floor beams 20 in advance during factory production.

Furthermore, in the present embodiment, the fixing portion 32 of the heat insulating material support fitting 28 includes pressing wall portions 37 and 38 inserted between the underfloor heat insulating material 24 and the side wall portion 20B of the floor beam 20. The pressing wall portions 37 and 38 are pressed toward the side wall portion 20B of the small floor beam 20 by the underfloor heat insulating material 24 (pressing force F).

As described above, the heat insulating material support fittings 28 are attached and fixed to the small floor beams 20 from the lower side of the floor beams 20, so that the abutment portions 39 of the heat insulating material support fittings 28 do not touch the floor small beams. When contacting the lower surface 20A of the beam 20, the pressing wall portions 37, 38 of the heat insulating material support fitting 28 are inserted between the underfloor heat insulating material 24 and the side wall portion 20B of the small floor beam 20. As shown in FIG.

In this way, with the pressing walls 37 and 38 inserted between the underfloor heat insulating material 24 and the side wall portion 20B of the small floor beam 20, the pressing walls 37 and 38 are supported by the underfloor heat insulating material 24. 20 is pressed toward the side wall portion 20B side (pressing force F). As a result, a frictional force is generated between the underfloor heat insulating material 24 and the pressing walls 37 and 38 . The underfloor heat insulating material 24 is supported by this frictional force, and the load of the underfloor heat insulating material 24 on the support pieces 48 and 50 of the heat insulating material support fittings 28 is reduced.

As a result, in the support pieces 48 and 50 of the heat insulating material support metal fitting 28, it is possible to reduce the bending toward the lower side with the both ends 39A and 39B of the contact portion 39 as base points. Further, in a state in which the pressing walls 37 and 38 are inserted between the underfloor heat insulating material 24 and the side wall portion 20B of the floor beam 20, a frictional force is generated between the pressing walls 37 and 38 and the underfloor heat insulating material 24. As a result, the heat insulating material support fitting 28 can be made difficult to fall.

Further, in this embodiment, the pressing walls 37 and 38 include vertical wall portions 40 and 42 that can contact the side wall portions 20B of the floor beams 20, spring plate portions 44 that can contact the underfloor heat insulating material 24, 46 and . As described above, in the state where the pressing walls 37 and 38 are inserted between the underfloor heat insulating material 24 and the side wall portion 20B of the floor beam 20, the underfloor heat insulating material 24 causes the spring plate portions 44 and 46 to move to the floor beam. 20 are pressed toward the side wall portion 20B.

The spring plate portions 44 and 46 are slightly inclined in a direction away from the vertical wall portions 40 and 42 as they go downward from the upper end 40A of the vertical wall portion 40 and the upper end 42A of the vertical wall portion 42, respectively. there is Therefore, when the spring plate portions 44 and 46 are pressed by the underfloor heat insulating material 24, the spring plate portions 44 and 46 move vertically around the upper end 40A of the vertical wall portion 40 and the upper end 42A of the vertical wall portion 42, respectively. They are elastically deformed toward the walls 40 and 42, and biasing forces are generated. Due to this biasing force, the reaction force of the spring plate portions 44 and 46 against the underfloor heat insulating material 24 increases, and the frictional force between the spring plate portions 44 and 46 and the underfloor heat insulating material 24 increases.

Further, as described above, the spring plate portions 44 and 46 move away from the vertical wall portions 40 and 42 as they go downward from the upper end 40A of the vertical wall portion 40 and the upper end 42A of the vertical wall portion 42, respectively. is sloping. Therefore, the slopes 44B and 46B of the spring plate portions 44 and 46 can be utilized to generate a force that urges the underfloor heat insulating material 24 upward. In other words, the state in which the underfloor heat insulating material 24 is supported by the spring plate portions 44 and 46 is maintained.

(Modification of this embodiment)
As shown in FIG. 2, in this embodiment, in the heat insulating material support bracket 28, the pressing walls 37 and 38 are composed of vertical wall portions 40 and 42 that can contact the side wall portions 20B of the floor beams 20, and underfloor The spring plate portions 44 and 46 with which the heat insulating material 24 can abut are included, but the spring plate portions 44 and 46 are not necessarily required.

For example, as shown in FIG. 7, in a heat insulating material support fitting (heat insulating material support) 60, pressing walls 62 and 64 are not provided with spring plate portions 44 and 46 (see FIG. 2). configuration.

The pressing wall portions 62 and 64 in this embodiment are configured to include vertical wall portions 66 and 68 with which the side wall portion 20B of the floor beam 20 and the underfloor heat insulating material 24 can abut. Rectangular notches 70 and 72 when viewed from the longitudinal direction (arrow L) of the heat insulating material support bracket 60 are formed in the width direction (arrow W) central portions of the vertical wall portions 66 and 68, respectively. there is From the lower sides 70A, 72A of the cutouts 70, 72, support pieces 74, 76 each having a rectangular shape in plan view extend substantially horizontally in a direction away from the vertical wall portions 66, 68, respectively. Circular lock holes 74A and 76A are formed in the free ends of the support pieces 74 and 76, respectively.

As shown in FIG. 2, in the heat insulating material support fitting 28, the locking holes 34 and 36 formed at the free ends of the support pieces 48 and 50 are rectangular holes. In other words, the shape of the locking hole in the heat insulating material support fitting is not particularly specified.

<Second embodiment>
(Configuration of heat insulating material support)

As shown in FIGS. 2 and 4B, in the first embodiment, the contact portion 39 of the heat insulating material support fitting 28 is fixed to the lower surface 20A of the floor beam 20. As shown in FIG. On the other hand, in the heat insulating material support fitting (heat insulating material support) 100 according to the second embodiment shown in FIGS. The contact portion (second contact portion) 102 is fixed to the upper surface 22A of the floor joist 22 provided on the floor joist 20 shown in FIG.

Here, the configuration of the heat insulating material support fitting 100 according to the second embodiment will be described. In addition, in the following description, the same code|symbol is used about the substantially same structure as 1st Embodiment, and description is omitted.

FIG. 8(A) shows a perspective view of the heat insulating material support fitting 100 according to the present embodiment as viewed obliquely from the front left side. As shown in FIG. 8A, the heat insulating material support fitting 100 includes a fixing portion 104 and locking pieces (support portions) 118 and 120 .

The fixed part 104 is provided substantially in the center of the heat insulating material support fitting 100 in the longitudinal direction (arrow L), and as described above, is attached to the upper surface 20C of the floor beam 20 via the joist 22 shown in FIG. It includes a contact portion 102 that can be contacted, and vertical wall portions (pressing wall portions) 110 and 112 that are pressed toward the side wall portion 20B of the small floor beam 20 by the underfloor heat insulating material 24. .

The contact portion 102 constitutes the upper portion of the heat insulating material support fitting 100 and has a substantially rectangular shape in plan view. The abutting portion 102 abuts and is fixed to the upper surface 22A of the floor joist 22 . The vertical wall portions 110 and 112 hang down from both ends 102A and 102B of the contact portion 102, respectively. A supporting piece 114 extends in a substantially horizontal direction. Further, from the lower end 112A of the vertical wall portion 112, a support piece 116 extends substantially horizontally in a direction away from the vertical wall portion 112. As shown in FIG.

From the free ends of the support pieces 114 and 116, locking pieces 118 and 120, which are rectangular when viewed from the longitudinal direction (arrow L) of the heat insulating material support fitting 100, hang down. Rectangular locking holes 106 and 108 are formed between the support pieces 114 and 116 and the locking pieces 118 and 120, respectively. The inner edges of locking holes 106 and 108 formed between and are formed in an inverted L shape.

Then, as shown in FIGS. 8A and 8B, the end portion 52A of the string member 52 holding the under beam heat insulating material 30 is attached to the locking pieces 118 and 120 through the locking holes 106 and 108. The provided hook 54 can be locked from the inside of the heat insulating material support fitting 100 . Note that FIG. 8B is an enlarged view of the locking piece 120 side shown in FIG. 8A. 9A, 9B to 11A, 11B described below are the same as FIGS. 8A, 8B.

(Action and effect of heat insulating material support)
Next, the operation and effects of the heat insulating material support fitting 100 according to the second embodiment will be described.

In this embodiment, although not shown, the heat insulating material support metal fittings 100 shown in FIGS. Then, the heat insulating material support fitting 100 is fixed to the floor beam 20 (heat insulating material support fixing step).

Next, the underfloor heat insulating material 24 is placed in contact with the vertical wall portions 110 and 112 of the heat insulating material support fitting 100 shown in FIGS. 8A and 8B (first heat insulating material placement step). Then, the support pieces 114 and 116 of the heat insulating material support fitting 100 are caused to support the string members 52 that hold the under beam heat insulating material 30 (second heat insulating material placement step).

In this embodiment, the fixing portion 104 of the heat insulating material support fitting 100 shown in FIGS. 8A and 8B includes the contact portion 102 capable of contacting the upper surface 20C of the floor beam 20 shown in FIG. Although not shown, in this embodiment, the heat insulating material support fitting 100 is attached and fixed to the floor beam 20 from the upper side of the floor joist 22 provided on the floor beam 20 .

8(A) and 8(B), the heat insulating material supporting metal fitting 100 is placed in a state where the contact portion 102 is in contact with the upper surface 22A of the joist 22 shown in FIG. Since it is supported by the beams 20, there is no need for an adhesive or the like for temporarily fixing the heat insulating material support metal fittings 100 to the small floor beams 20 for fall prevention, and workability is good.

(Modification of this embodiment)
In the above embodiment, as shown in FIG. 8(A), locking pieces 118 and 120 hang down from the free ends of support pieces 114 and 116 in the heat insulating material support fitting 100 and engage with the support pieces 114 and 116, respectively. Locking pieces 118 and 120 as supporting portions are provided between the stopping pieces 118 and 120, respectively, but the supporting portions are not limited to this. In addition, in the following description, the same code|symbol is used about the substantially same structure as 2nd Embodiment, and description is omitted.

(1) As a first modified example, as shown in FIG. 9A, in a heat insulating material support fitting (heat insulating material support) 130, from the free ends of a pair of support pieces 132, locking pieces (supporting portions) are attached. 134 are suspended. The locking piece 134 has a substantially rectangular shape when viewed from the longitudinal direction (arrow L) of the heat insulating material support fitting 130, and a notch 136 is formed in each locking piece 134. As shown in FIG.

The notch 136 in the present embodiment is a front notch formed in a rectangular shape along the width direction (arrow W) of the heat insulating material support fitting 130 at the center and front and back of the locking piece 134 in the vertical direction. It is composed of a portion 136A and a rear notch portion 136B. For this reason, as shown in FIGS. 9A and 9B, the end 52A of the cord member 52 is provided with respect to the locking piece 134 through the front notch 136A and the rear notch 136B. The annular portion 138 may be locked. Note that the shape of the locking piece 134 is not limited to this.

(2) As a second modification, as shown in FIG. 10A, in a heat insulating material support fitting (heat insulating material support) 140, from the free ends of a pair of support pieces 142, locking portions (support portions) are attached. 144 are suspended. The engaging portion 144 has a substantially U-shape when viewed from the front, and includes an inner wall portion 144A forming an inner side, an outer wall portion 144B forming an outer side, and a rear wall portion 144C connecting the inner wall portion 144A and the outer wall portion 144B. and As a result, as shown in FIGS. 10A and 10B, even if the annular portion 138 provided at the end portion 52A of the cord member 52 is locked to the locking portion 144, good.

(3) As a third modification, as shown in FIG. 11A, in a heat insulating material support fitting (heat insulating material support) 150, from the free ends of a pair of support pieces 152, locking pieces (supporting portions) are attached. 154 are suspended. The locking piece 154 has a rectangular shape when viewed from the longitudinal direction (arrow L) of the heat insulating material support fitting 150. The locking piece 154 has a central portion in the vertical direction and a front portion of the locking piece 154. A rectangular cutout portion 154A is formed along the width direction (arrow W) of the heat insulating material support fitting 150 in the portion.

In this embodiment, as shown in FIGS. 11A and 11B, a stopper 158 provided at an end portion 156A of a belt-like string member (holding member) 156 is provided in the notch portion 154A. It is designed to be locked. In other words, the configuration of the cord member 156 can be appropriately changed according to the shape of the locking portion.

In the above embodiment, the string member is locked to the locking piece formed on the heat insulating material support. It is not limited to this.

(4) As a fourth modification, as shown in FIG. 12(A), in a heat insulating material support fitting (heat insulating material support) 160, from the free ends of a pair of support pieces 162, locking portions (support portions) are provided. 164 are suspended. The engaging portion 164 has a substantially U shape in a front view, similarly to the heat insulating material support fitting 140 shown in FIG. 10(A), and constitutes the inner side as shown in FIG. An inner wall portion 164A, an outer wall portion 164B forming the outside, and a back wall portion 164C connecting the inner wall portion 164A and the outer wall portion 164B.

Here, the inner wall portion 164A is formed so that the thickness becomes thinner toward the tip. For this reason, in this embodiment, as shown in FIG. The section 164 can support the under beam insulation 30 .

That is, in this embodiment, the cord member 52 shown in FIG. 8B and the like is not necessarily required. In addition, FIG. 12(B) shows a state in which the under-beam heat insulating material 30 is supported by the heat insulating material support bracket 160 shown in FIG. 12(A). is a cross-sectional view of. Also, FIGS. 13A and 13B described below are the same as FIGS. 12A and 12B.

12A and 12B, the locking portion 164 is caused to pierce the inner wall portion 164A of the locking portion 164 of the heat insulating material support fitting 160 from above by the under-beam heat insulating material 30. can support the under beam heat insulating material 30, but the piercing direction is not specified.

(5) As a fifth modification, as shown in FIG. 13A, in a heat insulating material support fitting (heat insulating material support) 170, locking portions 174 are suspended from the free ends of a pair of support pieces 172, respectively. ing. The engaging portion 174 has a substantially inverted L shape when viewed from the front, and in FIG. and a protruding piece (supporting portion) 178 formed along.

In the present embodiment, the piercing piece 178 has a triangular cutout in the central portion in the front-rear direction. 178B are formed respectively. As a result, as shown in FIG. 13(B), the under-beam heat insulating material 30 is pierced into the piercing portions 178A and 178B in a substantially horizontal direction, thereby causing the piercing portions 178A and 178B to be pierced. The under-beam heat insulating material 30 may be supported by the locking portion 174 via the intermediary.

<Third Embodiment>
In the above-described first and second embodiments, the heat insulating material support bracket 28 that is fixed to the floor beam 20 shown in FIG. . On the other hand, in the present embodiment, a heat insulating material support fitting (heat insulating material support) 182 that supports an under-beam heat insulating material (second heat insulating material) 180 that is fixed to the floor girder 18 and covers the lower part 19 of the floor girder 18 , 184 will be described.

In this embodiment, the under-beam heat insulating material 180 is fixed to the heat insulating material support fittings 182 fixed to the floor girder 18 of the building unit 12 and to the floor girder 186 of the building unit 14 installed next to the building unit 12. It is supported by a heat insulating material support fitting (heat insulating material support) 184 which is mounted. That is, in this embodiment, the heat insulating material support metal fittings 184 fixed to the floor girders 18 and 186 respectively arranged along the gable direction of the building units 12 and 14 arranged adjacent to each other will be described. Although not shown, the heat insulating material support fittings 184 may be fixed to floor girders arranged along the girder direction of adjacent building units.

(Configuration of heat insulating material support)
Here, the configuration of the heat insulating material support according to this embodiment will be described.

FIG. 14 shows a perspective view of the heat insulating material support fittings 182 and 184 according to the present embodiment as viewed obliquely from the front right side. As shown in FIG. 14, the heat insulating material support fitting 182 and the heat insulating material supporting fitting 184 have substantially the same shape, so the configuration of the heat insulating material supporting fitting 182 will be described as a representative of both.

First, as shown in FIG. 15, the cross-sectional shape of the floor girders 18 when cut along the vertical direction is formed in a substantially U shape with the side of the floor girders 20 (see FIG. 1) as the opening side. It includes a web (side wall of steel beam) 18A, an upper flange 18B and a lower flange 18C.

The floor girders 18 are filled with a compressible heat insulating material 188 (see FIG. 1) made of fiber such as glass wool or rock wool. 18C. Since the floor girders 186 have substantially the same configuration as the floor girders 18, the same constituent members as those constituting the floor girders 18 are denoted by alphabetical characters, and descriptions thereof are omitted.

As shown in FIG. 14, the heat insulating material support fitting 182 includes a fixing portion 190 and a peripheral portion 196A of the locking hole 196 as a support portion. The fixing portion 190 constitutes the lower portion of the heat insulating material support fitting 182 , and the locking hole 196 is formed at the free end portion of the support piece 192 constituting the upper portion of the heat insulating material support fitting 182 . A vertical wall portion (fixed portion) 194 is provided between the fixed portion 190 and the support piece 192 to connect them.

As shown in FIGS. 14 and 15, the fixed part 190 can clamp the lower flange 18C of the floor girder 18. As shown in FIG. In the fixed portion 190, the metal plates are curved so as to overlap vertically, and the lower flange 18C of the floor girder 18 can enter into the fixed portion 190. As shown in FIG.

The mouth portion 190A side of the fixed portion 190 has a smaller vertical gap than the deep portion 190B side, and when the lower flange 18C of the floor girder 18 enters the fixed portion 190, the fixed portion 190 is elastically deformed. A lower flange 18C of the floor girders 18 is sandwiched by the fixing portion 190. As shown in FIG. Also, the hook 54 of the string member 52 holding the under beam heat insulating material 180 shown in FIG.

(Action and effect of heat insulating material support)
Next, the operation and effects of the heat insulating material support according to this embodiment will be described.

As shown in FIGS. 16A and 16B, the floor girders 18 and 186 are filled with a heat insulating material 188, respectively. In addition, the underfloor heat insulating material 24 is arranged between the floor girders 18 and the small floor girders (not shown), and between the large floor girders 186 and the small floor girders (not shown). Further, an underfloor heat insulating material ( A first heat insulator) 198 is arranged. A docking section floor material 27 is fitted between the underfloor material 26 of the building unit 12 and the underfloor material 26 of the building unit 14 .

Next, the heat insulating material support fittings 182 are attached to the floor girders 18 , and the heat insulating material support fittings 184 are attached to the floor girders 186 . Specifically, as shown in FIGS. 16(B) and 17(A), the fixing portion 190 of the heat insulating material support fitting 182 is attached to the lower flange 18C of the floor girders 18 along the substantially horizontal direction. Then, the lower flange 18C is moved into the fixing portion 190 to fix the heat insulating material support fitting 182 to the floor girders 18 (heat insulating material support fitting fixing step). At this time, the heat insulating material 188 is compressed by the vertical wall portion 194 of the heat insulating material support fitting 182 .

Next, as shown in FIGS. 15, 17B, and 18, the under-beam heat insulating material 180 held by the string members 52 is engaged with the heat insulating material support bracket 182. Next, as shown in FIGS. Specifically, the hooks 54 provided on the string members 52 are engaged with the peripheral portions 196A of the engagement holes 196 formed at the free ends of the support pieces 192 of the heat insulating material support fitting 182 ( second heat insulating material holding step).

In addition, similarly to the floor girders 18, the lower flange 186C of the floor girders 186 is moved into the fixing portion 200 of the heat insulating material support fittings 184, and the heat insulating material support fittings 184 are fixed to the floor girders 186 (insulation material support fitting fixing process ). At this time, the heat insulating material 188 is compressed by the vertical wall portion (fixed portion) 202 of the heat insulating material support fitting 184 .

Next, as shown in FIGS. 17A, 17B, and 18, the peripheral portions 206A of the locking holes 206 formed in the free ends of the support pieces 204 of the heat insulating material support fitting 184 are , the hooks 54 provided on the string members 52 are locked (second insulating material holding step).

As a result, as shown in FIG. 18, the underfloor heat insulating material 180 contacts the underfloor heat insulating material 24 and the underfloor heat insulating material 188, and the underfloor heat insulating material 24 and the underfloor heat insulating material 180 are provided continuously. The material 198 and the under beam heat insulating material 180 are continuously provided. As a result, the underfloor heat insulating materials 24, 198 and the underfloor heat insulating material 180 cover the lower part 19 of the floor girders 18 and the lower part 187 of the floor girders 186, including the web 18A of the floor girders 18 and the web 186A of the floor girders 186. It will happen. As a result, it is possible to take measures against thermal bridges of the floor girders 18 and the floor girders 186 .

<Fourth Embodiment>
In the third embodiment, as shown in FIG. 18, the floor girders 18 of the building units 12 and the floor girders 186 of the building units 14 arranged adjacently are fixed to the lower part 19 of the floor girders 18 and the floor girders. The insulation support fittings 182, 184 that support the under beam insulation 180 covering the lower portion 187 of 186 have been described.

On the other hand, in this embodiment, as shown in FIG. 20, it is fixed to the floor girder 212 of the building unit 210 including the outer wall of the unit building 11, and the under-beam heat insulating material ( A heat insulating material support fitting (heat insulating material support) 216 that supports the second heat insulating material) 214 will be described. In addition, in the following description, the same code|symbol is used about the substantially same structure as 3rd Embodiment, and description is omitted.

(Configuration of heat insulating material support)
The configuration of the heat insulating material support according to this embodiment will be described below.

FIG. 19 shows a perspective view of the heat insulating material support fitting 216 according to the present embodiment as viewed obliquely from the front right side. As shown in FIG. 19, the heat insulating material support fitting 216 includes a fixing portion 218, a peripheral portion (support portion) 220A of the locking hole 220, and a peripheral portion (support portion) 222A of the locking hole 222. It is configured.

The fixed portion 218 constitutes the lower portion of the heat insulating material support fitting 216 . The locking hole 220 is formed at the free end of a support piece 224 forming the upper portion of the heat insulating material supporting fitting 216, similarly to the heat insulating material supporting fitting 182. As shown in FIG. A vertical wall portion (fixed portion) 226 is provided between the fixed portion 218 and the support piece 224 to connect them.

As shown in FIG. 20, the fixed part 218 can clamp the lower flange 212C of the floor beam 212. As shown in FIG. As shown in FIG. 19 , the fixed portion 218 is curved, and the lower flange 212C of the floor girder 212 can enter into the fixed portion 218 . The opening 218A side of the fixing portion 218 has a smaller vertical gap than the inner portion 218B side, and when the lower flange 212C of the floor girder 212 enters the fixing portion 218, the fixing portion 218 is elastically deformed. A lower flange 212C of the floor girders 212 is clamped by the fixing portions 218. As shown in FIG.

Here, from the opening 218A of the fixed portion 218, a support piece 228, which has a substantially rectangular shape in plan view, extends substantially horizontally in a direction away from the vertical wall portion 226 toward the side opposite to the support piece 224. there is The support piece 228 is formed longer than the length of the lower flange 212C of the floor girders 212, and is set to have a length necessary for the floor girders 212 to take measures against thermal bridges.

String members for holding the under-beam heat insulating material 214 shown in FIG. Each of the 52 hooks 54 is lockable.

As shown in FIG. 20, strings for holding the under beam heat insulating material 214 are attached to a peripheral portion 220A of the locking hole 220 formed in the support piece 224 and a peripheral portion 222A of the locking hole 222 formed in the support piece 228. With the hooks 54 of the members 52 locked, the under-beam heat insulating material 214 contacts the under-floor heat insulating material 24 and the heat insulating material 188 . Thereby, the underfloor heat insulating material 24 and the under beam heat insulating material 214 are continuously provided, and the heat insulating material 188 and the under beam heat insulating material 214 are continuously provided. In other words, the floor girders 212 are covered with the under-beam heat insulation material 214, the underfloor heat insulation material 24, and the heat insulation material 188, so that the heat-bridge countermeasures for the floor girders 212 can be achieved.

The present invention is not limited to the above-described embodiments, and various modifications, changes, and improvements are possible without departing from the scope of the invention. For example, the embodiments and modifications described above may be configured by combining a plurality of them as appropriate.

18 Floor girders (steel beams)
18A web (side wall of steel beam)
19 Bottom (bottom of steel beam)
20 floor beams (steel beams)
20B side wall (side wall of steel beam)
20C upper surface (upper surface of steel beam)
21 Bottom (bottom of steel beam)
24 underfloor insulation (first insulation)
28 Insulation support bracket (insulation support)
30 under beam insulation (second insulation)
32 Fixed portion 34 Locking hole (support portion)
34A peripheral part (supporting part)
36 locking hole (supporting part)
36A peripheral part (supporting part)
37 pressing wall portion (fixed portion)
38 pressing wall portion (fixed portion)
39 contact portion (first contact portion, fixed portion)
48 support piece 50 support piece 52 string member (holding member)
56 Underfloor 58 Above floor 60 Insulation material support fitting (insulation material support)
62 pressing wall portion (fixed portion)
64 pressing wall portion (fixed portion)
74 Supporting piece 74A Locking hole (supporting part)
76 Supporting piece 76A Locking hole (supporting part)
100 Heat Insulating Material Support Bracket 102 Abutting Part (Second Abutting Part, Fixed Part)
104 Fixed portion 110 Vertical wall portion (pressing wall portion)
112 vertical wall portion (pressing wall portion)
114 support piece 116 support piece 118 locking piece (support portion)
120 locking piece (supporting part)
130 Insulation support bracket (insulation support)
132 Supporting piece 134 Locking piece (supporting part)
140 Insulation support bracket (insulation support)
142 support piece 144 locking portion (support portion)
150 Insulation support bracket (insulation support)
152 support piece 154 locking piece (support portion)
156 string member (holding member)
160 Insulation support bracket (insulation support)
162 support piece 164 locking portion (support portion)
170 Insulation support bracket (insulation support)
172 support piece 174 locking portion (support portion)
178 stabbing piece (supporting part)
180 Under beam insulation (second insulation)
182 Insulation support bracket (Insulation support)
184 Insulation support bracket (Insulation support)
186 Floor beam 186A Web (side wall of steel beam)
187 lower part (lower part of steel beam)
190 Fixed part 192 Support piece 194 Vertical wall part (fixed part)
196 locking hole (supporting part)
196A peripheral part (supporting part)
198 Underfloor insulation (first insulation)
200 fixed part 202 vertical wall part (fixed part)
204 Supporting piece 206 Locking hole 206A Peripheral part (supporting part)
212 Floor girders (steel beams)
213 lower part (lower part of steel beam)
214 under beam insulation (second insulation)
216 insulation support bracket (insulation support)
218 Fixed portion 220 Locking hole (support portion)
220A peripheral part (supporting part)
222 locking hole (supporting part)
222A peripheral part (supporting part)
224 support piece 226 vertical wall portion (fixed portion)
228 support piece

Claims (8)

a fixed portion fixed to a steel beam provided under the floor; a support portion formed at a free end of a support piece connected to the fixed portion and extending horizontally in a direction away from the fixed portion; a thermal insulation support comprising
a first heat insulating material that abuts on the side wall portion of the steel beam and insulates between the underfloor and the above floor;
A second heat insulating material made of a compressible material and capable of being supported by the support portion, being compressed while being supported by the support portion, provided continuously with the first heat insulating material, and covering a lower portion of the steel beam. insulation;
an insulation support structure having 2. The insulating material support structure according to claim 1, further comprising a holding member capable of holding said second insulating material and capable of being supported by said supporting portion while holding said second insulating material. The heat insulating material support structure according to claim 1 or 2, wherein the fixed portion includes a first contact portion capable of contacting the lower surface of the steel beam. The fixing portion further includes a pressing wall portion inserted between the first heat insulating material and the side wall portion of the steel beam and pressed toward the side wall portion of the steel beam by the first heat insulating material. 4. The insulation support structure of claim 3, comprising: The heat insulating material support structure according to claim 1 or 2, wherein the fixed portion includes a second contact portion capable of contacting the upper surface of the steel frame beam. The fixing part can be arranged between the first heat insulating material and the side wall part of the steel beam, and further includes a pressing wall part that is pressed toward the side wall part of the steel beam by the first heat insulating material. 6. The insulation support structure of claim 5, comprising: A pressing wall portion that can abut on a side wall portion of a steel beam provided under the floor, and a free end portion of a support piece that is connected to the pressing wall portion and extends horizontally in a direction away from the pressing wall portion. A support portion formed in a heat insulating material support method using a heat insulating material support configured to include:
A first heat insulating material placement step of placing a first heat insulating material for insulating between the underfloor and the above floor in a state of being in contact with the side wall portion of the steel beam;
a heat insulating material support fixing step of inserting the pressing wall portion from below between the side wall portion of the steel beam and the first heat insulating material to fix the heat insulating material support to the steel beam;
A second heat insulating material holding step of causing the support portion to support a holding member that holds a second heat insulating material that covers the lower part of the steel beam and is pressed and compressed against the first heat insulating material;
An insulation support method comprising: a fixed portion fixed to a steel beam provided under the floor; a support portion formed at a free end of a support piece connected to the fixed portion and extending horizontally in a direction away from the fixed portion; A heat insulating material support method using a heat insulating material support configured to include
a heat insulating material support fixing step of attaching the heat insulating material support to the steel beam from above and fixing the heat insulating material support to the steel beam;
A first heat insulating material placement step of placing a first heat insulating material for insulating between the underfloor and the above floor in a state of being in contact with the side wall portion of the steel beam;
A second heat insulating material holding step of causing the support portion to support a holding member that holds a second heat insulating material that covers the lower part of the steel beam and is pressed and compressed against the first heat insulating material;
An insulation support method comprising:

Images