JP2007332655A - Mounting structure of exterior wall panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of an exterior wall panel that allows the panel to be mounted to a building frame using a small number of part items without performing welding, thus enhancing constructability, and reducing the costs of construction work and members. <P>SOLUTION: The mounting structure includes: a Z-steel member 21 having a horizontal piece 21a placed on the lower end face 27a of the panel and a rear upright piece 21b secured to the building frame, with the upper end of the rear upright piece 21b serving as a protruding piece 21c that produces perpendicularly from the back 27b of the panel; a C-steel member having an upright part that abuts the back 27b of the panel, a lower horizontal piece serving as a protruding piece that protrudes perpendicularly from the back of the panel, and an upper horizontal piece secured to the building frame; and clamps 25 each having at one end a V-shaped locking part 25a which, together with the back 27b of the panel, clamps the protruding piece 21c. With the clamps 25 screwed to the bottom and the top of the back 27b of the panel, the back 27b of the panel and the V-shaped locking part 25a together clamp the protruding piece 21c and the panel 27 is mounted to the building frame via the Z-steel member 21 and the C-steel member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an outer wall panel mounting structure using an extrusion-molded cement board or ALC, and more particularly to an improved technique for reducing the weight of a base and metal fittings and eliminating the need for welding work during panel mounting.

  In the case of an outer wall using an extruded cement board or lightweight cellular concrete, the base steel material is attached to the housing, and the panel is attached by engaging the Z clip attached to the panel with the base. For example, when an extrusion-molded cement board is attached to a building frame, as shown in FIG. 9, a piece angle 3 is attached to the beam 1, an angle 5 is attached through the piece angle 3, and the four corners of the extrusion-molded cement board 7 are attached. The through-angle 5 is clamped by the attached Z-clip 9. The upper Z clip 9 was welded to the upper through angle 5. Moreover, the weight of the extrusion-molded cement board 7 was received by the lower through angle 5. In addition, in the figure, 11 shows an opening reinforcement steel material.

JP 2000-87483 A No. 8-4486 No. 8-4487

When a panel such as an extruded cement board is attached by the above-described Z clip, the upper Z clip may rotate and come off the base when the building is displaced due to inter-level displacement. If the Z clip is detached from the base, it may lead to a serious accident such as panel dropping, so the upper Z clip has to be welded to the upper through angle.
Therefore, Patent Document 1 describes a structure in which the outer wall panel is prevented from rotating by using an attachment fitting that engages with the lip portion of the base steel material instead of the Z clip and does not require welding. In this mounting structure, the lower side of the panel is a steel material having a lip portion (hereinafter referred to as “C-type steel material”). However, when attaching an outer wall panel such as an extruded cement board, the weight of the panel is not received by the panel mounting bracket alone, but a weight receiver is provided on the lower side of the panel to receive the weight of the panel. For this reason, in this structure, in addition to the C-type steel material, a support plate for receiving the weight of the panel must be separately attached, and the necessary materials are increased, so that the workability is reduced and the cost is increased. I can't.
Patent Documents 2 and 3 describe metal fittings that prevent the rotation of the Z clip. In Patent Document 2, a fastener that prevents rotation of a metal fitting by combining a Z-clip body with a perforated plane portion having substantially the same shape as a Z-clip and a holding tongue piece protruding from one of the perforated plane portions. Attached hardware is described. Japanese Patent Application Laid-Open No. H10-228688 describes a clasp that projects an arm member from one side edge along the length direction of a Z clip and bends the tip of the arm member to prevent rotation. In the case of these metal fittings, although rotation can be prevented without welding, since the positions of the sandwiching tongue piece and the arm member are changed by the left and right Z clips, it is necessary to prepare two types of metal fittings. For this reason, the metal fitting has been increased in cost.
The present invention has been made in view of the above situation, and provides an outer wall panel mounting structure capable of mounting a panel to a housing with a small number of members without performing welding, thereby improving workability and reducing construction and member costs. The purpose is to reduce.

In order to achieve the above object, the outer wall panel mounting structure according to claim 1 of the present invention is such that the horizontal piece is placed on the lower end surface of the panel, the rear rising piece is fixed to the housing, and the upper end of the rear rising piece is Z-shaped steel material that is a protruding piece protruding vertically from the back of the panel;
A rising part abuts against the back of the panel, the lower horizontal piece becomes a protruding piece protruding vertically from the back of the panel, and the upper horizontal piece is fixed to the housing;
A mounting bracket having at one end a square-shaped locking portion that sandwiches the protruding piece with the back surface of the panel;
The other end of the mounting bracket is screwed to the lower side and the upper side of the back surface of the panel, so that the protruding piece is sandwiched between the back surface of the panel and the hook-shaped locking portion, and the panel is made of the Z-shaped steel material. And it attaches to the said housing through the said C-type steel materials, It is characterized by the above-mentioned.

  In this outer wall panel mounting structure, the thickness of the steel material can be reduced by using the Z-shaped steel material as compared with the case of using the conventional L-shaped angle. Accordingly, the weight of the base can be reduced and the number of base brackets can be reduced since the weight receiver is integrated. In addition to this, since it is not necessary to weld the mounting bracket, it is possible to improve the construction efficiency and reduce the cost.

3. The outer wall panel mounting structure according to claim 2, wherein the lower end panel has an L-shaped angle attached to the base at the lower side, the Z-shaped steel material attached to the L-shaped angle, and an upper side below the beam. To the C-shaped steel material attached to the side flange,
The intermediate panel has an L-shaped angle attached to the upper flange of the beam on the lower side, the Z-shaped steel material attached to the L-shaped angle, and the C-shaped steel material attached to the lower flange of the beam on the upper side. In addition,
The upper end panel has an L-shaped angle attached to the upper flange of the beam on the lower side, the Z-shaped steel material attached to the L-shaped angle, an L-shaped angle attached to the side surface of the parapet, and the L To the C-type steel material attached to the mold angle,
Each is attached by the mounting bracket.

  In this outer wall panel mounting structure, the lower end panel, the intermediate panel, and the upper end panel are each attached to the housing by a Z-type steel material, a C-type steel material, and a mounting bracket. By being attached in an arbitrary number, the arbitrary height direction of the outer wall of the frame can be efficiently constructed at low cost without requiring welding with a light and small base.

  The outer wall panel mounting structure according to claim 3 is characterized in that a hard packing is interposed between the lower end surface of the panel and the horizontal piece of the Z-shaped steel material.

  In this outer wall panel mounting structure, a hard packing is inserted to form a gap between the Z-shaped steel material and the lower end surface of the panel. R does not interfere, and the rising portion of the Z-shaped steel material can be brought into close contact with the back surface of the panel.

  5. The outer wall panel mounting structure according to claim 4, wherein a horizontal portion is sandwiched between the lower end surface of the panel and the horizontal piece of the Z-shaped steel material, and a hanging portion is provided at the front end of the horizontal portion. A draining plate having a Z-shaped cross section with a standing part bent at the rear end is provided.

  In this outer wall panel mounting structure, even when rainwater enters the panel hollow portion extending in the vertical direction from the outside, the horizontal portion of the draining plate provided on the horizontal joint causes water leakage to the indoor side. Be blocked. That is, rainwater that has fallen to the horizontal portion is prevented from entering the indoor side by the standing portion, guided to the hanging portion, and drained to the panel hollow portion at the lower end portion.

  In the outer wall panel mounting structure according to claim 5, a backup material is attached to the front surface of the hanging portion of the draining plate, and the upper end of the backup material protrudes upward from the horizontal portion by the thickness of the hard packing. It is characterized by that.

  In this outer wall panel mounting structure, the upper end of the backup material protrudes upward from the horizontal portion by the thickness of the hard packing, so that the gap between the panel on which the lower end is placed on the hard packing and the horizontal piece of the Z-shaped steel material Is surely blocked by the backup material. As a result, high-quality sealing can be performed at the horizontal joint.

  According to the mounting structure of the outer wall panel according to the present invention, the mounting bracket is screwed to each of the lower side and the upper side of the panel back surface so that the protruding piece is sandwiched between the panel back surface and the rectangular locking portion. Since it attaches to a housing via Z type steel material and C type steel material, compared with the case where the conventional L type angle is used, the thickness of steel material can be made thin. Therefore, the overall weight of the outer wall structure can be reduced by reducing the weight of the metal fittings using the mounting brackets with rib-shaped locking parts that are reinforced by ribs and by combining the base steel with Z-type steel and C-type steel. Can be achieved. Further, since the Z-type steel material and the C-type steel material are integrated with the weight receiver and the engaging portion (projecting piece) for the mounting bracket, the number of base brackets can be reduced. Furthermore, since it is not necessary to weld the mounting bracket, it is possible to improve the construction efficiency and reduce the construction cost.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of an outer wall panel mounting structure according to the invention will be described with reference to the drawings.
1 is a longitudinal sectional view of a lower end panel and a base portion according to the mounting structure according to the present invention, FIG. 2 is a longitudinal sectional view of a horizontal joint portion according to the mounting structure according to the present invention, and FIG. 3 is a lateral sectional view of FIG. FIG. 4 is a longitudinal sectional view of the panel at the upper end by the mounting structure according to the present invention.
The outer wall panel mounting structure according to the present embodiment includes a Z-shaped steel member 21, a C-shaped steel member 23, and a mounting bracket 25 as main components.

  As shown in FIG. 1, the Z-shaped steel material 21 has a horizontal piece 21 a on which a lower end surface 27 a of an extruded cement board (hereinafter simply referred to as “panel”) 27 is placed, a rear rising piece 21 b is fixed to a housing, The upper end of the rising piece 21b is a protruding piece 21c protruding vertically from the panel back surface 27b.

  As shown in FIG. 2, in the C-type steel material 23, the rising portion 23a abuts on the panel back surface 27b, the lower horizontal piece becomes a protruding piece 23b protruding vertically from the panel back surface 27b, and the upper horizontal piece 23c is fixed to the casing. Is done. In addition, this C-type steel material 23 is attached also in the attitude | position from which the upper side horizontal piece 23c becomes a lower side by use position.

  The mounting bracket 25 has, at one end, a protruding piece 21c between the panel back surface 27b and a square-shaped locking part 25a that holds the protruding piece 23b. As shown in FIG. 3, the mounting bracket 25 is provided with reinforcing ribs 25 b in a square-shaped locking portion 25 a, thereby reducing the weight of the bracket. The mounting bracket 25 has a hole penetrating from the panel back surface 27b to the hollow portion 27c, and is attached to the nut 29 inserted into the hollow portion 27c by a bolt 31 from the back surface side.

  When the panel 27 is mounted, the mounting bracket 25 is in a temporarily fixed state, and at the mounting position of the panel 27, the square-shaped locking portion 25a of the mounting bracket 25 is the protruding piece 21c of the Z-shaped steel material 21 or the C-shaped steel material. It attaches by hooking on the protrusion piece 23b of 23, and fastening the volt | bolt 31. FIG.

  The corner of the panel receiving portion of the Z-shaped steel material 21 is marked with R. For this reason, in order to adhere the panel 27 to the rear rising piece 21b of the Z-shaped steel material 21, the hard packing 33 may be placed on the panel lower end surface 27a, and the panel 27 may be placed thereon. By inserting the hard packing 33 in this way, a gap is formed between the Z-type steel material 21 and the panel lower end surface 27a, and this gap prevents the R of the Z-type steel material 21 from interfering with the Z-type steel material. The rear rising piece 21b of the steel material 21 can be brought into close contact with the panel back surface 27b.

  In the mounting structure of the outer wall panel according to the present embodiment, the other end of the mounting bracket 25 is screwed to the lower side and the upper side of the panel back surface 27b, so that the panel back surface 27b, the character-shaped locking portion 25a, Thus, the projecting piece 21c and the projecting piece 23b are sandwiched, and the panel 27 is attached to the housing via the Z-type steel material 21 and the C-type steel material 23. The panel 27 attached to the base is filled with a packing material or a backup material 35 at the joint and further filled with a sealing material 37 on the surface thereof.

Next, a lower end panel, an intermediate panel, and an upper end panel attached by the above-described mounting structure will be described.
As shown in FIG. 1, the lower end panel 27 has a Z-shaped steel material 21 attached to an L-shaped angle 43 attached to the base portion 41 on the lower side, and an upper side C attached to a lower flange 45 a of the beam 45 shown in FIG. 2. The mold steel material 23 is attached, and is attached to the respective bases (Z-type steel material 21 and C-type steel material 23) by the mounting bracket 25.

  As shown in FIG. 2, the intermediate panel 27 has a Z-shaped steel material 21 attached to an L-shaped angle 47 whose lower side is attached to the upper flange 45 b of the beam 45, and the upper side is C-shaped to the lower flange 45 a of the beam 45. The mold steel material 23 is attached, and is attached to the respective bases (Z-type steel material 21 and C-type steel material 23) by the mounting bracket 25.

  The upper end panel 27 has an L-shaped angle 51 in which the Z-type steel material 21 is attached to an L-shaped angle 47 attached to the upper flange 45b of the beam 45 on the lower side and the upper side is attached to the side surface of the parapet 49 shown in FIG. A C-type steel material 23 is attached to each of the bases (Z-type steel material 21 and C-type steel material 23).

  Thus, each of the lower end panel 27, the intermediate panel 27, and the upper end panel 27 is attached to the housing by the Z-type steel material 21, the C-type steel material 23, and the mounting bracket 25, and the intermediate panel 27 is By being attached in an arbitrary number, the arbitrary height direction of the outer wall of the frame can be efficiently constructed at low cost without requiring welding with a light and small base.

  In the outer wall panel mounting structure, the thickness of the steel material can be reduced by using the Z-shaped steel material 21 as compared with the case of using the conventional L-shaped angle. Accordingly, the weight of the base can be reduced and the number of base brackets can be reduced since the weight receiver is integrated. In addition to this, welding of the mounting bracket 25 is also unnecessary, so that the construction efficiency and cost can be reduced.

Next, a modified example in which the waterproofness of the mounting structure described above is enhanced will be described.
FIG. 5 is a vertical cross-sectional view of the bottom panel and the base portion according to the waterproof strengthening specification of the mounting structure according to the present invention, and FIG. 6 is a vertical cross-sectional view of the horizontal joint portion according to the waterproof strengthening specification of the mounting structure according to the present invention. 7 is a transverse sectional view of FIG. 6, and FIG. 8 is a sectional view of the draining plate.
In order to enhance the water tightness of the joint portion, the outer wall panel mounting structure described above preferably includes the gasket 51 shown in FIGS. 5 and 7 in the vertical joint and the draining plate 53 shown in FIG. 6 in the horizontal joint. .

  As shown in FIG. 8, the draining plate 53 has a horizontal portion 53a sandwiched between the lower end surface 27a of the panel and the horizontal piece 21a of the Z-shaped steel material 21, and a drooping portion 53b and a horizontal portion at the front end of the horizontal portion 53a. A standing portion 53c is bent at the rear end of the portion 53a to form a Z-shaped cross section.

  By inserting such a draining plate 53, even if rainwater enters the panel hollow portion 27c extending in the vertical direction from the outside, the horizontal portion 53a of the draining plate 53 provided on the horizontal joint allows Water leakage to the indoor side is prevented. That is, rainwater that has fallen to the horizontal portion 53a is prevented from entering the indoor side by the standing portion 53c, guided to the hanging portion 53b, and drained to the panel hollow portion 27c at the lower end. The intrusion water drained into the hollow portion 27c is drained to the outside by the drain pipe 55 shown in FIG. 5 that opens at the lower end surface 27a of the panel 27 at the lower end.

  The draining plate 53 is placed on the horizontal piece 21a of the Z-shaped steel material 21, and the hard packing 33 is placed thereon. For this reason, as shown in FIG. 8, the back-up material 35 of the draining plate 53 is attached so as to protrude upward by the thickness of the hard packing 33 so as to match the position of the joint. As described above, the upper end of the backup material 35 protrudes upward from the horizontal piece 21 a by the thickness of the hard packing 33, so that the panel 27 on which the lower end surface 27 a is placed on the hard packing 33 and the horizontal of the Z-shaped steel material 21. The gap with the piece 21 a is reliably closed by the backup material 35. As a result, high-quality sealing can be performed at the horizontal joint.

  Therefore, according to the mounting structure of the outer wall panel, the projecting piece 21c and the projecting piece 21c are projected by the panel rear surface 27b and the square-shaped locking portion 25a by screwing the mounting bracket 25 to the lower side and the upper side of the panel rear surface 27b. Since the panel 27 is attached to the housing via the Z-type steel material 21 and the C-type steel material 23 with the piece 23b interposed therebetween, the thickness of the steel material can be reduced as compared with the case where a conventional L-shaped angle is used. Therefore, by weight reduction of the metal fitting by the attachment metal fitting 25 provided with the square-shaped latching | locking part 25a reinforced by the reinforcement rib 25b, and weight reduction by the combination with the Z-type steel material 21 and C-type steel material 23 which are base steel materials, Cost reduction can be achieved as the entire outer wall structure. In addition, since the Z-shaped steel material 21 and the C-shaped steel material 23 are integrated with the weight receiver and the engaging portion (the protruding piece 21c and the protruding piece 23b) for the mounting bracket 25, the number of base brackets can be reduced. Can do. Furthermore, since it is not necessary to weld the mounting bracket 25, it is possible to improve the construction efficiency and reduce the construction cost.

It is a longitudinal cross-sectional view of the panel and foundation part of the lower end part by the attachment structure which concerns on this invention. It is a longitudinal cross-sectional view of the horizontal joint part by the attachment structure which concerns on this invention. FIG. 3 is a cross-sectional view of FIG. 2. It is a longitudinal cross-sectional view of the panel of the upper end part by the attachment structure which concerns on this invention. It is a longitudinal cross-sectional view of the panel and base part of the lower end part by the waterproof reinforcement specification of the attachment structure which concerns on this invention. It is a longitudinal cross-sectional view of the horizontal joint part by the waterproof reinforcement specification of the attachment structure which concerns on this invention. It is a cross-sectional view of FIG. It is sectional drawing of a draining plate. It is a perspective view of the attachment structure of the conventional outer wall panel.

Explanation of symbols

  21 ... Z-shaped steel material, 21a ... Horizontal piece, 21b ... Rear rising piece, 21c, 23b ... Protruding piece, 23 ... C-shaped steel material, 23a ... Rising part, 23c ... Upper horizontal piece, 25 ... Mounting bracket, 25a ... 27. Panel, 27a ... Panel lower end surface, 27b ... Panel back surface, 33 ... Hard packing, 35 ... Backup material, 41 ... Base part, 43, 47, 51 ... L-shaped angle, 45 ... Beam, 45a ... Lower flange, 45b ... Upper flange, 49 ... Parapet, 53 ... Drain plate, 53a ... Horizontal part, 53b ... Suspended part, 53c ... Standing part

Claims (5)

A Z-shaped steel material in which the horizontal piece is placed on the lower end surface of the panel, the rear rising piece is fixed to the housing, and the upper end of the rear rising piece is a protruding piece that protrudes vertically from the back surface of the panel;
A rising part abuts against the back of the panel, the lower horizontal piece becomes a protruding piece protruding vertically from the back of the panel, and the upper horizontal piece is fixed to the housing;
A mounting bracket having at one end a square-shaped locking portion that sandwiches the protruding piece with the back surface of the panel;
The other end of the mounting bracket is screwed to the lower side and the upper side of the back surface of the panel, so that the protruding piece is sandwiched between the back surface of the panel and the hook-shaped locking portion, and the panel is made of the Z-shaped steel material. And the mounting structure of the outer wall panel characterized by attaching to the said housing through the said C-type steel material. The lower end panel has an L-shaped angle attached to the base on the lower side, the Z-shaped steel attached to the L-shaped angle, and the C-shaped steel attached to the lower flange of the beam on the upper side.
The intermediate panel has an L-shaped angle attached to the upper flange of the beam on the lower side, the Z-shaped steel material attached to the L-shaped angle, and the C-shaped steel material attached to the lower flange of the beam on the upper side. In addition,
The upper end panel has an L-shaped angle attached to the upper flange of the beam on the lower side, the Z-shaped steel material attached to the L-shaped angle, an L-shaped angle attached to the side surface of the parapet, and the L To the C-type steel material attached to the mold angle,
2. The outer wall panel mounting structure according to claim 1, wherein the mounting structure is attached by the mounting bracket.   3. The outer wall panel mounting structure according to claim 1, wherein a hard packing is interposed between the lower end surface of the panel and the horizontal piece of the Z-shaped steel material.   A cross section in which a horizontal portion is sandwiched between the lower end surface of the panel and the horizontal piece of the Z-shaped steel material, a hanging portion is bent at a front end of the horizontal portion, and an upright portion is bent at a rear end of the horizontal portion The outer wall panel mounting structure according to any one of claims 1 to 3, further comprising a Z-shaped draining plate. The outer wall panel according to claim 4, wherein a backup material is attached to the front surface of the hanging portion of the draining plate, and an upper end of the backup material protrudes upward from the horizontal portion by a thickness of the hard packing. Mounting structure.

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