JP2009221820A - Heat insulating wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the occurrence of separation of a heat insulating plate 1 and cracks and breaking in the heat insulating plate 1 due to rocking of a skeleton in a heat insulating wall structure in which the skeleton of a building is provided with a concrete formed plate rockable and displaceable with rocking of the skeleton, and the heat insulating plate 1 made of synthetic resin foamed body is adhesively bonded to the inside of the concrete formed plate. <P>SOLUTION: The heat insulating plate 1 is separately adhesively bonded to each of the concrete formed plates, and an easily compressed part 2 more flexible than the central part of the heat insulating plate 1 is formed on the side edge of the heat insulating plate 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  In the present invention, a concrete molded plate such as a hollow extruded concrete plate, a lightweight cellular concrete plate (ALC plate), a precast concrete plate (PC plate), a glass fiber reinforced cement plate (GRC plate) or the like is applied to a structural frame such as a steel frame. Insulating wall structure applied to walls installed as wall material

  Conventionally, a hollow extruded concrete molded plate has been attached to a building housing so that it can be swung or displaced in accordance with the shaking of the housing using a Z-clip formed with a step in the center of a strip-shaped metal piece. On the wall, a convex strip protruding in the shape of an inverted trapezoidal cross section is formed on the inner surface side of the hollow extruded concrete molded plate, and a concave groove having an inverted trapezoidal cross section that fits the convex strip is also formed on the surface of the heat insulating plate. A heat insulating wall structure is known in which a heat insulating plate is attached to the inner surface of a hollow extruded concrete molded plate by forming and fitting the ridges and concave grooves together (see, for example, Patent Document 1). Moreover, the heat insulation wall structure which fixed the heat insulation board with the adhesive agent inside the wall comprised with the ALC board is also known (for example, refer patent document 2).

JP 2007-92290 A JP 2006-63663 A

  However, since the heat insulating wall structure described in Patent Document 1 has to form a ridge having an inversely tapered surface, it is applicable to an extruded concrete molded plate and is not applicable to a molded concrete molded plate. There is a difficult problem. Also, because of the size and structure of the building, it is difficult to make the intervals between the ridges the same for all the concrete molded plates used. There is also a problem that the concave groove of the plate has to be fitted with the ridges having the same interval, which takes time for processing. Furthermore, when the housing is shaken due to an earthquake or the like, the hollow extruded concrete molded plate swings or displaces together with the housing, so that the adjacent heat insulating plates are pressed against each other, and the ridges of the concrete molded plate and the concaves of the heat insulating plate are pressed. There is also a problem that the insulation between the grooves is disengaged and the heat insulating plate is displaced, or the heat insulating plate is easily cracked or chipped to cause a heat insulating defect.

  On the other hand, the heat insulating wall structure described in Patent Document 2 has an advantage that it can be easily constructed without requiring special processing for the concrete molded plate and the heat insulating plate. However, when the housing is shaken due to an earthquake or the like, if the heat insulating plate is bonded across a plurality of concrete molded plates, the heat insulating plates are likely to be peeled off or cracked due to different movements of the concrete molded plates. In addition, even if the heat insulating plate is divided and bonded to each concrete molded plate, as in the heat insulating wall structure described in Patent Document 1, pressing occurs between the heat insulating plates bonded to the adjacent concrete formed plates. There is a problem that the heat insulating plate is peeled off or cracks and chips are likely to occur.

  The present invention has been made in view of the above-described conventional problems. A concrete molded plate is attached to a building frame so as to be swingable or displaceable in accordance with the shaking of the frame, and a synthetic resin is placed inside the concrete molded plate. An object of the present invention is to prevent the heat insulating plate from peeling off due to the shaking of the casing, and the generation of cracks and chips to the heat insulating plate in the heat insulating wall structure to which the foam heat insulating plate is bonded.

  In the present invention, for the above purpose, a concrete molded plate is attached to a building frame so as to be swingable or displaceable in accordance with the shaking of the frame, and the inside of the concrete molded plate is made of a synthetic resin foam. In the heat insulating wall structure to which the heat insulating plate is attached, the heat insulating plate is divided and bonded to each concrete molded plate, and the side edge of the heat insulating plate is more flexible than the central portion of the heat insulating plate. It provides the heat insulation wall structure characterized by becoming.

Further, in the present invention, the easily compressible portion is formed as a region where grooves are alternately formed on the front and back along the side edge of the heat insulating plate,
The easily compressible part is formed as a region that has been compressed and deformed in advance beyond elastic compressive deformation,
The heat insulating plate and the concrete molded plate each have a planar rectangular shape and are attached with the long side in the vertical direction, and an easily compressing portion is provided at least on the side edge of the long side of the heat insulating plate,
The heat insulating plate and the concrete molded plate each have a planar rectangular shape and are attached with the long side in the horizontal direction, and an easily compressing portion is provided on at least the side edge of the heat insulating plate,
The width of the heat insulating plate and the concrete molded plate are equal, and the heat insulating plate and the concrete molded plate are bonded with the same width,
The joint material is interposed at least on the inner end side of the seam between the concrete molding plates adjacent to each other in the lateral direction, and the corner portion of the heat insulating plate facing the seam between the concrete molding plates is cut away. Forming a joint material container,
Is included as a preferred embodiment thereof.

  In the heat insulating wall structure of the present invention, since the heat insulating plate is bonded to each concrete molded plate, even if different movements occur in each concrete formed plate, heat insulation is performed across two or more concrete formed plates. It is possible to prevent an unreasonable force such as when the plates are bonded to the heat insulating plate.

  On the other hand, in the heat insulation wall structure of this invention, the side edge part of the heat insulation board adhere | attached inside the concrete shaping | molding board is a flexible easily compression part compared with the center part of a heat insulation board. For this reason, even if the body shakes due to an earthquake or the like and the heat insulating plates bonded to the adjacent concrete molding plates are pressed together, the easily compressible portion can be deformed to absorb the pressing force, The force can be prevented from acting. Therefore, it can be prevented that the heat insulating plates are pressed against each other and peeled off, or cracks and chips are generated.

  In addition, the heat insulating wall structure of the present invention can be obtained by a simple method of adhering the heat insulating plate with an adhesive without applying special processing to the concrete molded plate or the heat insulating plate, so that the workability is good and the cost is low. Reduction and shortening of construction period can be achieved.

  Hereinafter, the present invention will be further described with reference to the drawings.

  1 is a perspective view showing an example of a heat insulating plate used in the present invention, FIG. 2 is an enlarged cross-sectional view in which the central portion of the heat insulating plate shown in FIG. 1 is omitted, and FIG. 3 shows an example of a heat insulating wall structure according to the present invention. FIG. 4 is a perspective view showing a mounting state of a heat insulating plate and a concrete molded plate, and FIG. 5 is an enlarged cross sectional view around a joint between concrete molded plates adjacent to each other in the horizontal direction. 1 to 5, the same reference numerals indicate the same members or parts.

  As shown in FIGS. 1 and 2, the heat insulating plate 1 used in the heat insulating wall structure of the present invention has an easily compressible portion 2 on opposite side edges.

  The heat insulating plate 1 has a plate shape made of a synthetic resin foam. The heat insulating plate 1 is preferably lightweight and excellent in water resistance, heat insulating property, and pressure resistance, and a plate material made of a closed cell synthetic resin foam is optimal. As the synthetic resin foam constituting the heat insulating plate 1, for example, polystyrene foam, polyethylene foam, polypropylene foam, polyurethane foam, phenol resin foam, and the like can be used. Polystyrene foam is preferred because of its low thermal conductivity and excellent heat insulation. The heat insulating plate 1 made of a synthetic resin foam may be a bead foam molded plate or an extruded foam molded plate, but is preferably an extruded foam molded plate because of excellent pressure resistance.

  The easy compression part 2 is a flexible part compared with the center part of the heat insulation board 1, and the easy compression part 2 of the illustrated example has grooves 3 formed alternately on the front and back along the side edges of the heat insulation board 1. As a result, the region is more flexible than the central portion. When the easily compressible portion 2 is formed by forming such a groove 3, the flexibility of the easily compressible portion 2 can be easily adjusted by the number, depth, width, and the like of the grooves.

  Moreover, the easy compression part 2 compressed and deformed the side edge part of the heat insulation board 1 beyond the area | region of an elastic compression deformation, and reduced the intensity | strength by buckling the cell wall of the synthetic resin foam which comprises the heat insulation board 1. It can also be formed as a region. This compressive deformation can be performed by pressing the heat insulating plate 2 with the upper and lower surfaces sandwiched between plate-shaped pressers and pressing the side edge portion forming the easy-compressing portion 2 from the end surface side.

  In FIG. 3, 4 is a building frame such as a beam or a column made of H-shaped steel, for example, and 5 is a concrete molded plate that is a wall material.

  Examples of the concrete molded plate 5 include a hollow extruded concrete plate, a lightweight cellular concrete plate (ALC plate), a precast concrete plate (PC plate), a glass fiber reinforced cement plate (GRC plate), and the like. Any of molded products may be used. Further, it may be a hollow molded product or a solid molded product. The illustrated concrete molded plate 5 is a hollow extruded concrete plate.

  A Z-clip 6, which is a strip-shaped metal piece that forms a step across the center, is attached to the inner surface side (indoor side) of the concrete molding plate 5 by a fixture 7 such as a bolt. The Z clip 6 is attached to the concrete molding plate 2 with one end side pressed against the concrete molding plate 5 by the fixture 7 with the center step as a boundary, and the other end side slightly lifted from the concrete molding plate 2.

  A through (base) angle 8 is attached to the casing 4 by welding or the like. The through angle 8 is a long steel material having an L-shaped cross section, and a vertical piece (horizontal piece) is fixed to the housing 4, and the horizontal piece (vertical piece) is parallel to the inner surface of the concrete molding plate 5 from the housing 1. It is attached to protrude. The horizontal piece (vertical piece) of the through angle 8 protruding from the housing 4 is sandwiched between the other end side of the Z clip 6 slightly raised from the concrete molded plate 5 and the concrete molded plate 5, thereby A concrete molding plate 5 is attached to the housing 4. The concrete molded plate 5 is supported by the frame 4 by sandwiching a horizontal piece (vertical piece) of the through-angle 8 between the Z clip 6 and the concrete molded plate 5, so that the concrete molded plate 5 is rocked along with the shaking of the frame 4. It can be moved or displaced.

  The heat insulating plate 1 described in FIGS. 1 and 2 is bonded to the inner surface of the concrete molded plate 5 attached to the housing 4 as described above with an adhesive. As an adhesive, a general thing can be widely used, for example, a modified silicone type adhesive etc. can be used.

  The heat insulating plate 1 is divided and bonded to each concrete forming plate 5. In the present invention, that the heat insulating plate 1 is divided and bonded to each concrete forming plate 5 means that one heat insulating plate 1 is not bonded across the plurality of concrete forming plates 5. Therefore, a plurality of heat insulating plates 1 may be bonded as long as they are on one concrete molded plate 5.

  The heat insulating plate 1 and the concrete molded plate 5 in this example both have a planar rectangular shape, and as shown in FIG. 4, both have a vertically stretched structure attached with their long sides in the vertical direction. Further, the heat insulating plate 1 and the concrete molded plate 5 have the same width, and the heat insulating plate 1 is bonded to the concrete molded plate 5 with the same width. If the widths of the heat insulating plate 1 and the concrete molded plate 5 are made equal, the joints between the heat insulating plates 1 can be reduced, and it is easy to suppress a decrease in heat insulating properties.

  As shown in FIG. 5, the concrete molding plates 5 adjacent to each other in the lateral direction are connected to each other by an actual connection with a play (a fitting between a concave portion and a convex portion). In addition, joint members 9 and 10 that can be elastically deformed are interposed on the outer end side (outside of the seam) and the inner end side (inside of the room) of the joint between the concrete forming plates 5, respectively. The seam is sealed while allowing rocking or displacement.

  In the case of the vertically stretched structure as in this example, when the frame 4 (see FIGS. 3 and 4) is shaken due to an earthquake or the like, the vertically long concrete molded plate 5 mainly swings the upper side from side to side with the lower side as the center. The force to try acts. Due to this force, the long sides are pressed against each other between the heat insulating plates 1 bonded to the concrete forming plates 5 adjacent to each other in the lateral direction. For this reason, the easy compression part 2 is formed in the edge part of the long side of the heat insulation board 1, and it can absorb this pressing force.

  Further, as shown in FIG. 5, the corner portion of the heat insulating plate 1 facing the seam between the concrete forming plates 5 adjacent to each other in the lateral direction is cut away, thereby forming the joint material accommodating portion 11. Yes. The joint material accommodating portion 11 is a space formed between the joint material 10 and the heat insulating plate 1 provided on the inner end side of the joint, and by forming this, the concrete molded plate 5 swings or displaces. Even if the joint material 10 is crushed and bulges outward, it is possible to prevent the heat insulating plate 1 from being pushed up.

  The above example is an example of a vertically stretched structure, but the present invention can also be applied to a horizontally stretched structure in which a flat rectangular heat insulating plate 1 and a concrete molded plate 5 are attached with their long sides in the horizontal direction. . In the case of this horizontally stretched structure, when the frame 4 (see FIGS. 3 and 4) is shaken due to an earthquake or the like, a force is applied to the horizontally long concrete molded plate 5 mainly to slide and displace the entire body to the left and right. When this swaying occurs, the short sides are pressed against each other between the heat insulating plates 1 bonded to the concrete molding plates 5 adjacent to each other in the lateral direction. For this reason, it is preferable to form the easy compression part 2 in the edge part of the short side of the heat insulation board 1. FIG.

  Even in the case of a horizontal structure, by making the width of the heat insulating plate 1 and the concrete molded plate 5 equal and bonding the heat insulating plate 1 with the concrete molded plate 5 in the same width, the joint between the heat insulating plates 1 is obtained. Is preferably reduced.

  Also, in the case of a horizontal structure, the concrete molding plates 5 adjacent to each other in the lateral direction are connected by actual connection with play as shown in FIG. It is preferable to provide joints 9 and 10 that can be elastically deformed on the end side and the inner end side, respectively, and to seal the seam while allowing the concrete molded plate 5 to swing or displace. And it is preferable to cut out the corner part of the heat insulation board 1 which opposes the joint between the concrete shaping | molding boards 5 mutually adjacent in the horizontal direction, and to form the joint material accommodating part 11 by this.

It is a perspective view which shows an example of the heat insulation board used for this invention. It is an expanded sectional view which abbreviate | omitted the center part of the heat insulation board shown by FIG. It is sectional drawing which shows an example of the heat insulation wall structure which concerns on this invention. It is a perspective view which shows the attachment state of a heat insulating board and a concrete molding board. FIG. 3 is an enlarged cross-sectional view around a joint between concrete molding plates adjacent to each other in the lateral direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat insulation board 2 Easy compression part 3 Cut 4 Housing 5 Concrete molding board 6 Z clip 7 Fixing tool 8 Angle 9 Joint material 10 Joint material 11 Joint material accommodating part

Claims (7)

  In a heat insulating wall structure in which a concrete molding plate is attached to a building's housing so that it can swing or displace in accordance with the shaking of the housing, and a heat insulating plate made of synthetic resin foam is attached to the inside of the concrete molding plate. The heat insulation plate is divided and bonded to each concrete molded plate, and the side edge of the heat insulation plate is a flexible and easily compressible portion compared to the central portion of the heat insulation plate. Wall structure.   The heat insulating structure according to claim 1, wherein the easily compressible portion is formed as a region in which grooves are alternately formed on the front and back along the side edge of the heat insulating plate.   The heat insulating wall structure according to claim 1, wherein the easily compressing portion is formed as a region that has been compressed and deformed in advance beyond elastic compressive deformation.   The heat insulating plate and the concrete molded plate each have a flat rectangular shape, are attached with the long side in the vertical direction, and an easily compressing portion is provided at least on the side edge of the long side of the heat insulating plate. The heat insulation wall structure of any one of Claims 1-3 characterized by the above-mentioned.   The heat insulating plate and the concrete molded plate each have a flat rectangular shape, are attached with the long side in the horizontal direction, and the easy compression portion is provided at least on the side edge of the short side of the heat insulating plate. The heat insulation wall structure of any one of Claims 1-3 characterized by the above-mentioned.   The heat insulating wall structure according to claim 4 or 5, wherein the heat insulating plate and the concrete molded plate have the same width, and the heat insulating plate and the concrete molded plate are bonded to each other with the same width.   The joint material is interposed at least at the inner end side of the seam between the concrete molding plates adjacent to each other in the lateral direction, and the corner portion of the heat insulating plate facing the seam between the concrete molding plates is cut away, The heat insulating wall structure according to claim 6, wherein a joint material accommodating portion is formed.

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