JP2009097184A - Installation structure of alc panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installation structure of an ALC panel capable of preventing an installation metal fixture for installing the ALC panel on a building foundation from being exposed to the outside. <P>SOLUTION: The installation metal fixture 30 for securing the ALC panel 10 to the building foundation 20 is engaged with a buried anchor 14 pre-buried in the ALC panel 10 through a connection bolt 50, and so secured to a buried plate 24 installed on the panel installation surface 20a of the building foundation 20 as not to be extruded to the outside in the area of the lower end surface 10a of the ALC panel 10. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an ALC panel mounting structure, and more particularly to an ALC panel mounting structure suitably used for an outer wall or partition wall of a building or a general house.

  As an attachment structure of an ALC (lightweight cellular concrete) panel used for an outer wall or a partition wall of a building or a general house, for example, those described in Patent Documents 1 to 3 are known.

  Patent Document 1 describes a mounting structure in which an ALC panel is fixed with a bolt via an L-shaped angle (locking member) fixed to a building base. In this mounting structure, the horizontal plate that constitutes the L-shaped angle is fixed to the building base, and the ALC panel is secured with bolts while the upright plate that is erected at a right angle from the horizontal plate is exposed on the wall surface of the ALC panel. It is fixed.

  Patent Document 2 describes a mounting structure for fixing an ALC panel by fixing a mounting bracket provided with a shaft body to a building base and inserting the shaft body through a hole formed in the ALC panel. Yes.

  Furthermore, in Patent Document 3, a long anchor bolt is connected to a long nut embedded in an ALC panel in a state of protruding from the lower edge of the ALC panel, and the protruding portion of the anchor bolt is connected to a mortar. The attachment structure which fixes an ALC panel to a building base by fixing by is described.

Japanese Patent Laid-Open No. 10-169020 JP-A-9-78596 JP 2004-339890 A

  However, the ALC panel mounting structure described in Patent Documents 1 to 3 has the following problems.

  In the configuration as in Patent Document 1, since the aesthetic sense is lost when the L-shaped angle, that is, the mounting bracket is exposed on the wall surface of the ALC panel, it is necessary to cover the mounting bracket with an interior material such as a plaster board. Moreover, since the mounting bracket is exposed, the mounting bracket must be subjected to rust prevention treatment. Therefore, there has been a problem that the construction cost of houses and the like will increase significantly.

  On the other hand, according to the configuration of Patent Document 2, the mounting bracket is not exposed on the wall surface of the ALC panel, and the problem of loss of aesthetics due to the mounting bracket does not occur. However, since the ALC panel and the mounting bracket are not tightly connected, there is a problem that the mounting strength (mounting strength), particularly impact resistance, is inferior.

  Also, even with the configuration as in Patent Document 3, the mounting bracket is not exposed, but because the anchor bolt protruding from the ALC panel is fixed with mortar, not only the construction efficiency is poor, but also the ALC panel against shaking due to earthquakes, etc. There is a problem that the follow-up performance with respect to the interlayer deformation is low.

  The problem to be solved by the present invention is to provide an ALC panel mounting structure, a mounting bracket, and an ALC panel construction method in which a mounting bracket for mounting an ALC panel to a building base is not exposed to the outside. Another object of the present invention is to provide an ALC panel mounting structure, an ALC panel mounting bracket, and an ALC panel construction method that are excellent in the mounting strength of the ALC panel and the ability to follow interlayer deformation.

  In order to solve the above problems, the ALC panel mounting structure according to the present invention is such that a mounting bracket for fixing the ALC panel to a building base is engaged with a buried anchor embedded in the ALC panel in advance via a bolt. The mounting bracket is fixed to a metal plate provided on the panel mounting surface of the building base so that it does not protrude outside in the region of the lower end facet of the ALC panel.

  Further, in this case, if the mounting bracket is formed to be elastically deformable, or at least one of the mounting bracket and the head of the bolt, or between the mounting bracket and the ALC panel. It is preferable that a spacer member having an arcuate cross section on the surface of the mounting bracket is interposed.

  Further, it is preferable that the mounting bracket is formed in a U-shaped or B-shaped cross section.

  Further, it is preferable that the surface of the mounting bracket on the ALC panel side is formed in a circular arc shape in cross section.

  According to the ALC panel mounting structure according to the present invention, the ALC panel and the building base are connected by a mounting bracket interposed between the lower end facet surface and the panel mounting surface. Since it is fixed so that it does not protrude outside in the area of the lower end facet, the mounting bracket is not exposed to the wall surface of the ALC panel. Therefore, the aesthetics are not impaired by the mounting bracket, and it is not necessary to cover the mounting bracket with the interior material, and the construction cost does not increase.

  In this case, if the mounting bracket is formed so as to be elastically deformable, or between the mounting bracket and the head of the bolt, or at least one between the mounting bracket and the ALC panel, If a spacer with an arc-shaped cross section on the surface of the mounting bracket is interposed, the ALC panel will be smoothly locked against the shaking of the building due to earthquakes, etc., so the ALC panel can follow the interlayer deformation. The ALC panel mounting structure is excellent.

  Further, by forming the mounting bracket in a U-shaped or B-shaped cross section, the elastic deformation performance of the mounting bracket can be improved.

  Further, if the surface of the mounting bracket on the side of the ALC panel is formed in an arc shape in cross section, the ACL panel will be smoothly locked along the arc surface when shaking due to an earthquake or the like occurs. An ALC panel mounting structure having excellent follow-up performance with respect to interlayer deformation of the panel can be obtained.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view for explaining an ALC (lightweight cellular concrete) panel mounting structure according to the present embodiment, and FIG. 2 is a front view of the ALC panel mounted on a building base (FIG. 2A). ) And a side view (FIG. 2B). As can be seen from FIGS. 1 and 2, the ALC panel mounting structure 1 according to the present embodiment is configured by mounting the ALC panel 10 to a building base 20 via a mounting bracket 30.

  The mounting bracket 30 is a U-shaped member formed by bending both ends of a metal plate at a right angle. FIG. 3 shows an external perspective view of the mounting bracket 30. Hereinafter, in the mounting bracket 30, the portions bent at a right angle are referred to as side portions 301, 301, and the portion in which the through hole 302 a is formed in the center is referred to as the placement portion 302.

  The mounting portion 302 is a surface on which the ALC panel 10 is mounted. The mounting bracket 30 is attached to the ALC panel 10 in a state where the lower end face 10a of the ALC panel 10 is in contact with the mounting portion 302. Yes. Moreover, the front-end | tip part of the side parts 301 and 301 is being fixed to the panel mounting surface 20a of the building base 20. As shown in FIG.

  Here, as shown in FIG. 2, the mounting portion 302 has a dimension W1 in the longitudinal direction (width direction of the ALC panel 10), a dimension W2 of the lower end facet 10a of the ALC panel 10 in the same direction, and a building base. It is comprised so that it may become smaller than the dimension W3 of 20 panel attachment surfaces 20a. In addition, the dimension D1 in the short direction (the depth direction of the ALC panel 10) is smaller than the dimension D2 of the lower end face 10a of the ALC panel 10 and the dimension D3 of the panel mounting surface 20a of the building base 20 in the same direction. It is configured.

  On the other hand, the ALC (Lightweight Aerated Concrete) panel 10 is configured such that the wall surface is rectangular and the reinforcing reinforcing bars 12 are disposed therein. The reinforcing reinforcing bar 12 is formed into a cage shape by welding two frames 121 and 122 formed by welding a main reinforcing bar 12a extending in the longitudinal direction and a secondary reinforcing bar 12b extending in the width direction across a spacer 12c. It is formed.

  An embedded anchor 14 is disposed in the lower center of the ALC panel 10. The embedded anchor 14 includes a main body portion 141 formed by bending both ends of a metal plate at a right angle, and an anchor nut 142 having a female screw portion formed on the inner peripheral surface.

  The bottom surface 141 a of the main body 141 is positioned in parallel with the lower end facet 10 a of the ALC panel 10. A through hole (not shown) through which a connection bolt 50 described later can be inserted is formed at the approximate center. The embedded anchor 14 is formed by fixing an anchor nut 142 around the through hole by welding.

  The embedded anchor 14 configured as described above is fixed to the reinforcing steel bar 12 by welding. The ALC panel 10 is formed by accommodating the reinforcing reinforcing bars 12 in a mold and injecting raw material slurry therein. In addition, it is desirable to attach a rubber plug or the like to the anchor nut 142 so that the raw material slurry does not enter the female screw portion of the anchor nut 142 during the raw material slurry injection.

  The building base 20 to which the ALC panel 10 is attached is a concrete base on which reinforcing bars 22 are arranged. As shown in FIG. 2B, the building base 20 is provided with an iron embedded plate 24 that is welded and fixed to the reinforcing bar 22. Here, the embedded plate 24 is disposed such that the upper surface thereof and the panel mounting surface 20a of the building base 20 have substantially the same height.

  In addition, the installation method of the embedding plate 24 is not limited to such a method of welding and fixing to the reinforcing bar 22. For example, the embedded plate 24 may be fixed to the building base 20 by providing the embedded plate 24 with legs and inserting the legs into the concrete immediately after placing the concrete.

  Next, the construction method of the ALC panel mounting structure 1 configured as described above partially overlaps with the above description, but will be described below with reference to FIGS. In addition, since the manufacturing process generally known can be applied as a process of manufacturing the ALC panel 10, the description is abbreviate | omitted.

  First, the mounting bracket 30 is fixed to the ALC panel 10 with the connection bolt 50. Specifically, the connection bolt 50 is inserted into the through hole 302a of the mounting bracket 30 and fixed by screwing the connection bolt 50 into the anchor nut 142 of the embedded anchor 14 (mounting bracket connection step). At this time, the mounting portion 302 of the mounting bracket 30 is fixed in a state where the mounting portion 302 is in contact with the lower end edge surface 10 a of the ALC panel 10. Thus, by fixing the mounting bracket 30 with the connection bolt 50, the connection state between the mounting bracket 30 and the ALC panel 10 can be strengthened.

  Next, the ALC panel 10 to which the mounting bracket 30 is fixed is fixed to the panel mounting surface 20 a of the building base 20. Specifically, the end portions of the side surfaces 301 and 301 of the mounting bracket 30 are fixed to the embedded plate 24 fixed to the building base 20 by welding (mounting bracket welding process). As this welding method, a known arc welding method or the like can be applied.

  After the welding is completed, a sealing material is filled in the gap S between the ALC panel 10 and the building base 20 for sealing (sealing process). Preferable examples include sealing materials such as polyurethane and modified silicone.

  In the ALC panel mounting structure 1 constructed and constructed in this way, the mounting bracket 30 is formed in the dimensions as described above. Therefore, when the mounting bracket 30 is fixed to the ALC panel 10 and the building base 20, the mounting bracket 30 is mounted. 30 is attached so as not to protrude to the outside in the extended region of the lower end facet 10 a of the ALC panel 10. That is, the mounting bracket 30 is not exposed (protruded) on the wall surface of the ALC panel 10 or the side surface of the building base 20 and is attached in a state that is difficult to see from the outside. The beauty of is not impaired. As a result, it is not necessary to cover the mounting bracket 30 exposed on the wall surface of the ALC panel 10 with an interior material (gypsum board) or the like, so that it is possible to prevent the ALC panel installation construction cost from increasing. it can.

  In addition, as a material constituting the mounting bracket 30, a material that can secure the strength (rigidity) capable of supporting the ALC panel 10 and can be elastically deformed is selected in order to improve the follow-up performance of the ALC panel 10. . Specifically, a steel plate having a thickness of 3 to 7 mm can be exemplified. Considering availability, steel plates with standard thicknesses of 3.2 mm, 4.5 mm, and 6 mm are preferable.

  If the mounting bracket 30 is formed of an elastically deformable material in this way, when a shake due to an earthquake or the like occurs, the ALC panel 10 can smoothly follow (rock) the shake (due to an earthquake or the like). If the entire building is shaken, if the ALC panel 10 does not follow the shake, the inertial force generated by the shake cannot be endured, and the ALC panel 10 may be destroyed or dropped off. That is, in the ALC panel mounting structure 1 according to the present embodiment, since the mounting bracket 30 for mounting the ALC panel 10 can be elastically deformed, the ALC panel 10 has excellent tracking performance with respect to interlayer deformation.

  Here, for example, when the size of the ALC panel 10 is 3500 mm (height; H2) × 600 mm (width; W2) × 100 mm (depth; D2) and the weight is 136 kg, the mounting bracket 30 (mounting portion 302) The width (longitudinal) dimension W1 is preferably in the range of 50 mm to 150 mm. More preferably, it is the range of 60-80 mm. Moreover, it is preferable that the dimension D1 of a depth (short side) direction exists in the range of 40 mm-80 mm. More preferably, it is 50 mm-70 mm. This dimensional value is the locking operation to ensure that the ALC panel 10 smoothly locks against shaking due to an earthquake or the like while ensuring the minimum necessary size and strength for supporting the ALC panel 10. Is a value in consideration of preventing the mounting bracket 30 from being obstructed.

  Thus, if the mounting bracket 30 is formed so as to be elastically deformable and has a dimension that does not hinder the locking operation of the ALC panel 10, the ALC panel mounting with excellent follow-up performance with respect to interlayer deformation of the ALC panel 10 is possible. Structure 1 can be obtained.

  In the present embodiment, the height dimension (dimensions of the side surfaces 301 and 301) H1 of the mounting bracket 30 is set in consideration of the workability of the mounting bracket welding process and the workability of the sealing process. In other words, if the gap S between the ALC panel 10 and the building base 20 is too small, the workability of the welding work between the mounting bracket 30 and the embedded plate 24 is significantly reduced, while if the gap S is too large, the sealing work is performed. Therefore, the dimensions are set in consideration of the fact that the waterproof property between the ALC panel 10 and the building base 20 is greatly deteriorated.

  Therefore, considering this point, it is preferable that the height dimension H1 of the mounting bracket 30 is in the range of 15 mm to 30 mm. More preferably, it is about 25 mm. By setting it as such a dimension, the favorable workability | operativity in a mounting bracket welding process and the favorable workability | operativity in a sealing process are securable.

  Next, the ALC panel mounting structure 2 according to the second embodiment of the present invention will be described. FIG. 4 is an enlarged view for explaining the ALC panel mounting structure 2. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The ALC panel mounting structure 2 according to the present embodiment is different from the first embodiment in the method of fixing the mounting bracket 30 to the ALC panel 10. Specifically, a spacer 55 is interposed between the mounting bracket 30 and the head 50 a of the connection bolt 50 for mounting the mounting bracket 30 to the ALC panel 10.

  The spacer 55 is a metal or hard rubber plate in which a through hole 55a into which the connection bolt 50 can be inserted is formed at the center. As can be seen from FIG. 4, one surface of the spacer 55 is formed so that the cross section thereof has an arc shape (hereinafter, the surface formed in the arc shape is referred to as an R surface 551). The spacer 55 is fixed to the ALC panel 10 together with the mounting bracket 30 with the R surface 551 being in contact with the mounting bracket 30.

  By interposing such a spacer 55 between the mounting bracket 30 and the head 50a of the connection bolt 50, the interlayer deformation of the ALC panel 10 when the building is shaken compared to the case where the spacer 55 is not used. The following performance can be improved.

  Specifically, when the spacer 55 is not interposed, the mounting portion 302 of the mounting bracket 30 is tightened between the head 50a of the connection bolt 50 and the ALC panel 10, and thus the ALC panel 10 against the shaking of the building. The following performance with respect to interlayer deformation is low. On the other hand, when the spacer 55 is interposed, since the placement portion 302 is in contact with the R surface 551 of the spacer 55, the ALC panel 10 can swing along the R surface 551 of the spacer 55. As a result, the follow-up performance of the ALC panel 10 is improved as compared with the case where the spacer 55 is not interposed.

  As described above, when the spacer 55 is interposed between the mounting bracket 30 and the head 50a of the connection bolt 50, when the building is shaken due to an earthquake or the like, the ALC panel 10 is smoothly locked to the shake. Therefore, the follow-up performance with respect to interlayer deformation of the ALC panel 10 can be improved.

  In the present embodiment, the size of the ALC panel 10, the weight, the level of the building where the ALC panel 10 is installed, the material forming the mounting bracket 60, the size of the mounting bracket, and the like are taken into consideration. The curvature of the R plane 551 is determined.

  Further, in the present embodiment, it has been described that the spacer 55 is interposed between the mounting bracket 30 and the head 50a of the connection bolt 50. However, as a modified example, as shown in FIG. A similar effect can be expected even if the metal plate is interposed between the mounting bracket 30 and the ALC panel 10.

  Further, as shown in FIG. 5B, if the spacer 55 is interposed between the mounting bracket 30 and the head 50a of the connection bolt 50 and between the mounting bracket 30 and the ALC panel 10, one sheet is obtained. The follow-up performance with respect to interlayer deformation of the ALC panel 10 can be further improved as compared with the case where the spacer 55 is interposed.

  Also in the present embodiment, the mounting portion 302 has a dimension W1 in the longitudinal direction (width direction of the ALC panel 10), a dimension W2 of the lower end face 10a of the ALC panel 10 in the same direction, and the panel of the building base 20 It is comprised so that it may become smaller than the dimension W3 of the mounting surface 20a. In addition, the dimension D1 in the short direction (the depth direction of the ALC panel 10) is smaller than the dimension D2 of the lower end face 10a of the ALC panel 10 and the dimension D3 of the panel mounting surface 20a of the building base 20 in the same direction. It is configured.

  Therefore, when the mounting bracket 30 is mounted on the ALC panel 10, the mounting bracket 30 does not protrude (expose) the wall surface of the ALC panel 10 or the side surface of the building base 20, and the aesthetics when the ALC panel 10 is mounted are impaired. Or, since the exposed mounting bracket 30 is concealed, an increase in construction cost can be suppressed.

  In addition, the construction method of the ALC panel mounting structure 2 which concerns on this embodiment consists of a mounting bracket connection process, a mounting bracket welding process, and a sealing process similarly to said 1st embodiment. Among them, the mounting bracket connecting step is exactly the same as the first embodiment except that the connection bolt 50 is inserted through the spacer 55 and the mounting bracket 30 is fixed to the ALC panel 10.

  Next, an ALC panel mounting structure 3 according to a third embodiment of the present invention will be described. FIG. 6 is an enlarged view for explaining the ALC panel mounting structure 3. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The ALC panel mounting structure 3 according to this embodiment is different from the first and second embodiments in the shape of a mounting bracket 60 for fixing the ALC panel 10 to the building base 20.

  The mounting bracket 60 is a member formed by bending both ends of a metal plate, and a section of the mounting portion 602 that is a portion on which the ALC panel 10 is mounted is formed in an arc shape.

  As described above, if the contact surface of the mounting bracket 60 with the ALC panel 10 is formed in an arc shape, the ALC panel 10 is moved along the arc surface of the mounting portion 602 when a shake due to an earthquake or the like occurs. Since it can move, the ALC panel 10 can be smoothly locked. That is, the follow-up performance with respect to interlayer deformation of the ALC panel 10 with respect to the shaking of the building can be improved.

  In the present embodiment, the mounting portion is determined in consideration of the size and weight of the ALC panel 10, the level of the building where the ALC panel 10 is installed, the material forming the mounting bracket 60, the size of the mounting bracket, and the like. The curvature of the arc portion 602 is determined.

  Also in the present embodiment, the mounting portion 302 has a dimension W1 in the longitudinal direction (width direction of the ALC panel 10), a dimension W2 of the lower end face 10a of the ALC panel 10 in the same direction, and the panel of the building base 20 It is comprised so that it may become smaller than the dimension W3 of the mounting surface 20a. In addition, the dimension D1 in the short direction (the depth direction of the ALC panel 10) is smaller than the dimension D2 of the lower end face 10a of the ALC panel 10 and the dimension D3 of the panel mounting surface 20a of the building base 20 in the same direction. It is configured.

  Therefore, when the mounting bracket 30 is mounted on the ALC panel 10, the mounting bracket 30 does not protrude (expose) the wall surface of the ALC panel 10 or the side surface of the building base 20, and the aesthetics when the ALC panel 10 is mounted are impaired. Or, since the exposed mounting bracket 30 is concealed, an increase in construction cost can be suppressed.

  In addition, the construction method of the ALC panel mounting structure 3 which concerns on this embodiment is the same as said 1st embodiment which consists of a mounting bracket connection process, a mounting bracket welding process, and a sealing process.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

  For example, in the above-described embodiment, it has been described that the mounting bracket 30 has a U-shaped cross section, but is not limited to such a shape. It may be formed in a letter shape.

  The configuration of the embedded anchor 14 provided in the ALC panel 10 is not limited to that described in the above embodiment, and a connection bolt 50 for fixing the mounting bracket 30 (60) can be screwed together. What is necessary is just to provide the member in which the internal thread part was formed.

  Similarly, the structure of the embedding plate 24 embedded in the building base 20 is not limited to the one described in the above embodiment, and the ALC panel 10 is fixed by welding and fixing the mounting bracket 30 (60). Any configuration that can be erected on the building base 20 is acceptable.

It is a perspective view for demonstrating the ALC panel mounting structure which concerns on embodiment (1st embodiment) of this invention. Fig.2 (a) is a front view of the state which attached the ALC panel to the building base, FIG.2 (b) is the side view. It is an external appearance perspective view of the attachment metal fitting used for the ALC panel attachment structure shown in FIG. 1 and FIG. It is an enlarged view for demonstrating the ALC panel mounting structure which concerns on 2nd embodiment of this invention. FIG. 5A is an enlarged view for explaining a modification of the ALC panel mounting structure according to the second embodiment of the present invention shown in FIG. 4, and FIG. 5A shows a spacer between the mounting bracket and the ALC panel. FIG. 5B shows a state where the spacer is interposed between the mounting bracket and the head of the connecting bolt and between the mounting bracket and the ALC panel. It is an enlarged view for demonstrating the ALC panel mounting structure which concerns on 3rd embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ALC panel 10a Bottom edge surface 14 Embedded anchor 20 Building base 20a Panel mounting surface 24 Embedded plate 30 Mounting bracket (1st and 2nd embodiment)
50 Connection Bolt 50a (Connection Bolt) Head 55 Spacer 60 Mounting Bracket (Third Embodiment)

Claims (5)

  A mounting bracket for fixing the ALC panel to the building base is engaged with an embedded anchor previously embedded in the ALC panel via a bolt, and the mounting bracket is a metal plate provided on the panel mounting surface of the building base. In addition, the ALC panel mounting structure is fixed so that it does not protrude outside in the region of the lower end edge surface of the ALC panel.   The ALC panel mounting structure according to claim 1, wherein the mounting bracket is formed to be elastically deformable.   At least one of the mounting bracket and the head of the bolt or between the mounting bracket and the ALC panel is interposed with a spacer member whose surface on the mounting bracket side is formed in a circular arc shape. The ALC panel mounting structure according to claim 1, wherein the ALC panel mounting structure is provided.   The ALC panel mounting structure according to any one of claims 1 to 3, wherein the mounting bracket is formed in a U-shaped or B-shaped cross section.   The ALC panel mounting structure according to claim 1, wherein a surface of the mounting bracket on the ALC panel side is formed in a circular arc shape in cross section.

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