JP3856540B2 - Wall panel mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting structure for a building outer wall panel, and particularly relates to a wall panel mounting structure suitable for mounting a lightweight cellular concrete panel with the longitudinal direction of the wall panel being arranged in the vertical direction.
[0002]
[Prior art]
As a general structure for attaching a conventional outer wall panel to a building frame, an attachment structure shown in FIGS. 11 and 12 is well known. FIG. 11 is an explanatory view of a longitudinal section. When mounting and fixing the wall panel 52 to the building frame 51, an angle-shaped mounting bracket (ruler angle) 53 is used, and the mounting piece of the mounting bracket 53 (contacting the housing side) is shown. The flange 53a is in contact with the building frame beam 51, and the mounting piece 53a is attached and fixed to the embedded metal 54 embedded in the surface of the building frame beam 51 by welding 55. Further, a fixing piece (flange abutting against the wall panel) 53b of the mounting bracket 53 is abutted against the wall panel 52 and is fixedly attached to the wall panel 52 via the Inazuma plate 56, the O bolt 57 and the nut 58. It had been. FIG. 12 is an explanatory diagram of an elevation from the indoor side. Two wall panels 52 are continuous in the direction of the short side, and the mutual vertical joints 59 are provided in contact with the long side surfaces of the wall panel 52.
[0003]
In addition, angle-shaped mounting brackets (ruler angles) 53 provided on the lower and upper portions of the wall panel 52 are provided continuously over the two wall panels 52. Furthermore, the position where the wall panel 52 is fixedly attached to the mounting bracket 53 via the Inazuma plate 56, the O bolt 57 and the nut 58 is a substantially central portion in the short side direction of the indoor side surface of the wall panel 52. In this way, both the lower and upper parts of the wall panel 52 are attached at a substantially central part in the short side direction, so that the enclosure is between layers (between the upper surface such as the floor and the lower surface such as the upper floor) in the event of an earthquake. When the wall panel 52 is deformed by rotating around the attachment portion located at the substantially central portion in the short side direction of the lower and upper portions of the wall panel 52, the adjacent wall panels 52 are mutually deformed. The long side surfaces of the wall panel 52 located at the vertical joint 59 are designed to be shifted from each other.
[0004]
[Problems to be solved by the invention]
However, in the prior art shown in FIGS. 11 and 12, angle-shaped mounting brackets (ruler angles) 53 provided on the lower and upper portions of the wall panel 52 are continuously provided over the two wall panels 52. Since it is provided, the mounting piece 53 b is in contact with the wall panel 52 across the vertical joints 59 of the adjacent wall panels 52. Therefore, when the frame is deformed between layers due to an earthquake or the like, the indoor side surface of the wall panel 52 comes into contact with the mounting piece 53b in the vicinity of the lower and upper vertical joints 59 of the wall panel 52, and the wall panel 52 is caused by contact resistance. However, there is a problem that they are difficult to shift from each other along the long side surface. Therefore, in the case of a large earthquake exceeding seismic intensity 7, or when the rigidity of the frame is low and the deformation is large, the wall panel 52 may be particularly damaged. The damaged position was in the vicinity of the vertical joint 59 at the lower and upper portions of the wall panel 52. FIG. 12 shows a crack 60 as an example when the upper portion of the wall panel 52 is damaged. In particular, when the wall panel 52 is lightweight cellular concrete, the material itself is fragile and thus is easily damaged. In the case of lightweight cellular concrete, reinforcing bars are provided from a position about 5 cm away from the long side surface due to manufacturing reasons, etc., so that the very vicinity of the long side surface is an unreinforced portion, and that portion is the attachment piece 53b. In particular, it was a problem to receive contact resistance during contact and deformation during an earthquake. In the case of lightweight cellular concrete, reinforcing bars can be provided up to a position about 2 cm away on the short edge side, and damage during deformation during an earthquake is unlikely to occur.
[0005]
[Means for Solving the Problems]
The mounting structure of the wall panel according to the present invention is an invention that fundamentally improves the above-described conventional problems, and the configuration shown in claim 1 according to the present invention is an upper surface of a floor, a foundation, or a beam. The wall panel has a structure in which an outer wall surface is formed between the upper surface of the frame and the lower surface of the frame, which is the lower surface of the upper floor or beam, with the vertical direction being the long side of the wall panel. Two or more continuous wall panels are provided in the direction of the short side, and the vertical joints between the adjacent wall panels are provided in contact with the long side surfaces of the wall panels. Each of the mounting brackets A includes a fixing piece fixed to the upper surface of the casing or the lower surface of the casing and a mounting piece facing the indoor side surface of the wall panel. The mounting bracket A has a dimension shorter than the short side dimension of the wall panel. The fixed piece of the And a mounting piece of the mounting bracket A is provided to face a position centered on a substantially central portion in the short side direction of the indoor side surface of the wall panel, and is approximately in the short side direction at the lower and upper sides of the wall panel. The central part is fixed directly to the mounting piece of the mounting bracket A using bolts or screws, or indirectly through a lightning plate attached to the substantially central part in the short side direction on the back surface of the wall panel. It is the wall panel mounting structure characterized by being fixed to the mounting bracket A.
[0006]
As described above, according to the first aspect of the present invention, the substantially central portion in the short side direction of the lower and upper portions of the wall panel is formed on the upper surface of the casing or the casing through the mounting bracket A having a dimension shorter than the short side dimension of the wall panel. It is fixed at a predetermined position on the lower surface. Therefore, the mounting piece facing the indoor side surface of the wall panel of the mounting bracket A does not come into contact with the mounting piece in the vicinity of the lower and upper vertical joints of two or more continuous wall panels. Therefore, when the wall panel is deformed due to an earthquake or the like, the wall panels are not easily displaced from each other along the long side surfaces due to contact resistance, and damage to the wall panel such as cracks can be prevented.
[0007]
If the length dimension of the mounting bracket A is shorter than the short side length of the wall panel, it is possible to avoid the vertical joints of the lower and upper parts of the two or more continuous wall panels, but the shorter the dimension, The contact resistance with the fixed piece of the mounting bracket A when the wall panel is deformed due to an earthquake or the like can be reduced. Further, in the case of lightweight cellular concrete, it is more desirable that the mounting bracket A be positioned at a distance of about 5 cm or more from the long side surface in order to avoid an unsheathed portion near the long side surface. As the length dimension, it is more preferable that the length is shorter than the short side length of the wall panel by about 10 cm or more.
On the other hand, if the length of the mounting bracket A is made too short, the strength in the direction outside the panel acting during a typhoon or the like is reduced, but the thickness of the mounting bracket A is appropriately set for the required load. It is possible to design the strength by adjusting the length and the like.
[0008]
Furthermore, when the length dimension of the mounting bracket A is short, it is conceivable that the positioning of the wall panel is difficult when positioning the wall panel. The present inventor manufactured mounting brackets A of various lengths and experimentally performed mounting using lightweight cellular concrete panels. The length was about 1800 mm to about 2800 mm, the width was 600 mm, and the thickness was 100 mm. As a result of the wall panel, it was confirmed that the upper part of the wall panel was mounted with the mounting bracket A having a length of 270 mm and the wall panel could be positioned without any problem. In the confirmation construction test, the lower part of the wall panel was also constructed using another mounting bracket A having a shorter length of 50 mm. Both the upper and lower parts of the wall panel had a short side length of 600 mm. As a result, it was confirmed that the wall panel mounting structure using the mounting bracket A having a short length is a practically acceptable specification for positioning the wall panel when mounting the wall panel. It was. Especially when the wall panel is attached to the lower wall of the upper floor beam on the corridor side or veranda side of the apartment house, the length of the wall panel becomes a short dimension of about 2000 mm or less, and the wall panel construction is more stable. Therefore, if the application is limited, the length of the mounting bracket A can be further shortened, and positioning of the wall panel is a problem even if the upper part of the wall panel and the lower part of the wall panel are about 100 mm in length at the same time. I can say no.
[0009]
As described above, in the case of a lightweight cellular concrete panel, a suitable length dimension of the mounting bracket A is in the range of 500 mm or less when the short side length of the wall panel is 600 mm. It becomes a range.
Next, in the configuration shown in claim 2 according to the present invention, at least one of the lower part or the upper part of the wall panel is fixed to the upper surface of the housing or the lower surface of the housing, instead of using the mounting bracket A, A mounting piece B made of a rod-like body attached to the short side facet of the wall panel is used, and a fixing piece of the mounting bracket B is fixed at a predetermined position on the upper surface or the lower surface of the casing. 2. The wall panel mounting structure according to claim 1, wherein the rod-like body is provided by being inserted into a hole drilled at a position centered at a substantially central portion of the short side facet of the wall panel. is there.
[0010]
As described above, in the second aspect of the present invention, the wall panel is formed by using the mounting bracket B including the fixing piece fixed to the upper surface or the lower surface of the housing and the rod-shaped body attached to the short edge of the wall panel. Is attached to the housing. Therefore, unlike the mounting bracket A used in the first invention of the present invention, there are no mounting pieces facing the interior side surface of the wall panel, and therefore vertical joints at the lower and upper portions of two or more continuous wall panels. In the vicinity, the indoor side surface of the wall panel does not contact the mounting piece. Therefore, when the wall panel is deformed due to an earthquake or the like, the wall panels are not easily displaced from each other along the long side surfaces due to contact resistance, and damage to the wall panel such as cracks can be prevented. However, in the second invention, since the mounting hardware B has no mounting piece facing the indoor side surface of the wall panel, the mounting bracket generally has a load of the mounting portion against the load in the direction outside the panel surface acting during a typhoon or the like. The strength is low. However, it can be used in low-rise buildings with low required strength.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment of the wall panel mounting structure according to the present invention will be specifically described with reference to FIGS. FIG. 1 is an elevation from the room side showing a first embodiment of a wall panel mounting structure according to the present invention, and FIGS. 2 and 3 are a first embodiment of a wall panel mounting structure according to the present invention. FIG. 4 and FIG. 5 are perspective views showing an embodiment of the mounting bracket A according to the present invention, and FIG. 6 is a second view of the wall panel mounting structure according to the present invention. Fig. 7 is an elevation view from the indoor side showing the embodiment, Fig. 7 is an upper longitudinal sectional view showing a second embodiment of the wall panel mounting structure according to the present invention, and Figs. 8 and 9 are mounting brackets according to the present invention. Fig. 10 is a perspective view showing an embodiment of B, and Fig. 10 is an explanatory diagram of an upper longitudinal section showing another embodiment of the wall panel mounting structure according to the present invention.
[0012]
As shown in FIGS. 1 to 3, 6 to 7, and 10, the wall panel 1 is built between the housing upper surface 2 a and the housing lower surface 2 b and constitutes an outer wall surface. In these examples, the casing 2 is made of reinforced concrete, but may be made of steel. Between the wall panel 1 and the housing 2, when the housing 2 is deformed during an earthquake or the like, the wall panel 1 and the housing 2 are in contact with each other so that the wall panel 1 and the housing 2 do not come in contact with each other and are damaged. Clearance is provided.
[0013]
As shown in FIG. 1 and FIG. 6, the wall panel 1 constitutes an outer wall surface by contacting a long side surface with a vertical joint 7. In this embodiment, only two wall panels 1 are displayed, but there may be a case where the outer wall surface is configured by contacting the long side surfaces continuously with three or more.
Further, in the case of lightweight cellular concrete panel, there is an error in the manufacturing dimension of the short side length of the wall panel 1, so the position of the vertical joint 7 can be obtained even when the adjacent wall panels 1 are designed to contact each other. Thus, it is general that there is a gap of about 1 mm without long side surfaces being in contact with each other. As described above, in the actual site, there is a possibility that a gap of up to about 4 mm may occur, including a manufacturing error of the wall panel 1 and an installation error in the site. In the present invention, the state in which two or more wall panels 1 are in contact with the long side surfaces includes such a state.
[0014]
2 to 3 and 7, the fixing piece 3 a of the mounting bracket A <b> 3 and the fixing piece 4 a of the mounting bracket B <b> 4 are fixed to the embedded metal 8 embedded in the housing 2 in advance by welding 9. However, the fixing method is not limited to this, and may be other fixing means such as a post-installed anchor, a concrete screw, or a construction gun pin.
Further, as shown in FIG. 10, after the flat bar 11 is fixed to the housing 2 with the gun pin 12, the fixing piece 3a of the mounting bracket A3 is fixed to the flat bar 11, etc. May be a method of indirectly fixing to the housing 2 via a hardware or metal fitting in the middle.
[0015]
【Example】
[0016]
[Example 1]
As shown in FIGS. 1 to 3 in which the first invention according to the present invention, that is, the example of the invention shown in claim 1 is shown, an outer wall panel 1 is provided between the housing upper surface 2a and the housing lower surface 2b. There is a wall surface, and it is fixed to the housing 2 using the mounting bracket A3. The upper portion of the wall panel 1 is fixed to the mounting piece 3b of the mounting bracket A3 by a method such as welding (not shown) via a Inazuma plate 5 provided in the approximate center in the short side direction of the wall panel 1 by a bolt 6. Yes. The lower portion of the wall panel 1 is directly fixed to the mounting bracket A3 by a bolt 6 that passes through a through hole 3c provided in the mounting piece 3b of the mounting bracket A3.
[0017]
The length of the mounting bracket A3 is the length L1 or L2 shorter than the short side length L of the wall panel 1 in both the upper and lower portions of the wall panel 1, and the wall panel 1 When the two wall panels 1 are rotated around the bolt 6 and deformed around the bolt 6 during an earthquake or the like, the indoor side surface of 1 is not in contact with the mounting bracket A3. The side surfaces of the long sides of the wall panels 1 positioned at the vertical joints 7 are easily displaced from each other, and it is easy to prevent damage to the wall panel 1, and it is possible to obtain a wall structure having a very high grade.
[0018]
Here, the bolt 6 is used for fixing, but a tapping screw can also be used.
4 and 5 are perspective views of the mounting bracket A3. FIG. 4 shows an embodiment in which the fixed piece 3a and the mounting piece 3b are in an orthogonal shape and the length L1 is 300 mm. FIG. 5 is an example in which a through hole 3c is provided at a predetermined position of the mounting piece 3b and the length L2 is 150 mm.
4 and 5 are examples of the mounting bracket A3 in which the fixed piece 3a and the mounting piece 3b are in direct contact with each other and are orthogonal to each other. It is not necessarily limited to such a configuration. The mounting bracket A3 is a bracket in which a fixing piece 3a fixed to the housing 2 and a mounting piece 3b attached to the wall panel 1 are integrally provided, and the length of the bracket is shorter than the short side length of the wall panel 1. If it is a metal fitting which has a size, the operation effect of the present invention can be exhibited.
[0019]
Furthermore, the mounting piece 3b of the mounting bracket A3 does not need to be in direct contact with the indoor side surface of the wall panel 1, and may have a structure in which an empty dimension is secured with respect to the wall panel 1. At that time, in order to make the positioning of the wall panel 1 more reliable, a spacer having a dimension corresponding to the empty dimension may be installed between the mounting piece 3b of the mounting bracket A3 and the indoor side surface of the wall panel 1. it can. Also, instead of using a spacer, it is possible to place the spacer in a predetermined position on the mounting piece 3b of the mounting bracket A3 in advance by a stamping process at a factory or the like so as to contact the wall panel 1 locally. Is possible. Although positioning of the wall panel is a little difficult, the wall panel can be fixed with a hardware such as the Inazuma plate 5 with the vacant dimensions still provided. In that case, if the temporary spacer is used only at the time of construction until the fixing of the hardware is completed and the mounting of the wall panel is completed, the temporary spacer can be removed to ensure positioning. .
[0020]
[Example 2]
Unlike the embodiment of the first invention, as shown in FIGS. 6 to 7 in which the second invention according to the present invention, that is, the embodiment of the invention shown in claim 2 is shown, the upper portion of the wall panel 1 is attached. It is fixed by the bracket B4, and the rod-like body 4b provided on the mounting bracket B4 is directly fixed to the mounting bracket B4 by inserting it into the hole 10 drilled in the short edge of the wall panel 1. Yes.
[0021]
Since there is no mounting piece facing the indoor side surface of the wall panel in the mounting bracket B4, both the upper and lower portions of the wall panel 1 are similar to the first embodiment of the invention in the upper end portion or the lower end portion of the vertical joint 7, The interior surface of the wall panel 1 is not in contact with the mounting bracket A3, and when the two wall panels 1 rotate and deform around the bolt 6 at the time of an earthquake, the adjacent wall panels The long side surfaces of the wall panels 1 located at the vertical joints 1 of each other are easily displaced from each other, making it easy to prevent damage to the wall panel 1 and making it possible to have a very high-grade wall structure. is there.
8 and 9 are perspective views of the mounting bracket B4. FIG. 8 shows an embodiment in which the rod-like body 4b is orthogonal to the plate-like fixing piece 4a. FIG. 9 shows an embodiment in which the fixing piece 4a is formed by bending one end of the rod-like body 4b and pressing it flat. It is.
[0022]
【The invention's effect】
Since the present invention has the above-described configuration and operation, the frame is deformed between layers (between the upper surface such as the floor and the lower surface such as the upper floor) during an earthquake or the like, and the lower and upper portions of the wall panel When the wall panel is about to rotate and deform around the mounting part, there is no contact resistance such as a fixing piece of the mounting bracket at both the upper and lower ends of the adjacent vertical joints of the adjacent wall panels. Since it does not exist, the long side surfaces of the wall panel located at the vertical joint are easily displaced from each other, and it is possible to prevent damage such as cracks from occurring near the upper end or lower end of the long side surface. .
[0023]
In addition, since the length of the mounting bracket can be made shorter than the short side dimension of the wall panel, the mounting bracket can be made lighter compared to the conventional angle-shaped mounting bracket (ruler angle). Therefore, work efficiency at the construction site can be increased. In addition, regarding the fact that the positioning of the wall panel becomes difficult due to the shortening of the length of the mounting bracket, as described above, by selecting an appropriate dimension according to the wall panel dimension, etc. It does not impair workability.
[Brief description of the drawings]
FIG. 1 is an elevation from the room side showing a first embodiment of a wall panel mounting structure according to the present invention.
FIG. 2 is an upper longitudinal sectional explanatory view showing a first embodiment of a wall panel mounting structure according to the present invention.
FIG. 3 is a lower longitudinal cross-sectional explanatory view showing a first embodiment of a wall panel mounting structure according to the present invention.
FIG. 4 is a perspective view showing an embodiment of a mounting bracket A according to the present invention.
FIG. 5 is a perspective view showing an embodiment of a mounting bracket A according to the present invention.
FIG. 6 is an elevation from the room side showing a second embodiment of the wall panel mounting structure according to the present invention.
FIG. 7 is an upper vertical cross-sectional explanatory view showing a second embodiment of the wall panel mounting structure according to the present invention.
FIG. 8 is a perspective view showing an embodiment of a mounting bracket B according to the present invention.
FIG. 9 is a perspective view showing an embodiment of a mounting bracket B according to the present invention.
FIG. 10 is an upper longitudinal sectional explanatory view showing another embodiment of the wall panel mounting structure according to the present invention.
FIG. 11 is a longitudinal sectional explanatory view showing an example of a conventional wall panel mounting structure.
FIG. 12 is a front view from the room side showing an example of a conventional wall panel mounting structure.
[Explanation of symbols]
1 Wall panel 2 Housing 2a Housing upper surface 2b Housing lower surface 3 Mounting bracket A
3a Fixed piece 3b Mounting piece 3c Through-hole 4 Mounting bracket B
4a Fixed piece 4b Rod-shaped piece 5 Inazuma plate 6 Bolt 7 Vertical joint 8 Embedded metal 9 Weld 10 Drilled hole 11 Flat bar 12 Gun pin 51 Housing 52 Wall panel 53 Mounting bracket 53a Fixed piece 53b Mounting piece 54 Embedded Hardware 55 Welding 56 Inazuma plate 57 Bolt 58 Nut 59 Vertical joint 60 Crack

Claims (2)

An outer wall surface is formed between the upper surface of the frame, which is the upper surface of the floor, foundation or beam, and the lower surface of the frame, which is the lower surface of the upper floor or beam, with the vertical direction set to the long side of the wall panel. Two or more continuous wall panels are provided in the direction of the short side of the wall panel, and the mutual vertical joints of adjacent wall panels are provided in contact with the long side surface of the wall panel, The lower part and the upper part of the wall panel are each composed of a fixing piece fixed to the upper surface of the casing or the lower surface of the casing, and a mounting piece facing the indoor side surface of the wall panel, and having a shorter dimension than the short side dimension of the wall panel A is used to fix the fixing piece of the mounting bracket A at a predetermined position on the upper surface of the casing or the lower surface of the casing, and the mounting piece of the mounting bracket A is a substantially central portion in the short side direction of the indoor side surface of the wall panel. Wall facing the center Inazuma that is fixed directly to the mounting piece of the mounting bracket A using bolts or screws or the like, or attached to the approximate center in the short side on the back surface of the wall panel. A wall panel mounting structure characterized by being fixed to the mounting bracket A indirectly through a shape plate or the like. At least one of the lower part and the upper part of the wall panel is composed of a fixing piece fixed to the upper surface of the housing or the lower surface of the housing instead of using the mounting bracket A, and a rod-like body attached to the short edge of the wall panel. The mounting bracket B is used to fix the fixing piece of the mounting bracket B to a predetermined position on the upper surface of the casing or the lower surface of the casing, and the rod-shaped body of the mounting bracket B is disposed at the substantially central portion of the short edge of the wall panel. 2. The wall panel mounting structure according to claim 1, wherein the wall panel mounting structure is provided by being inserted into a hole drilled at a central position.

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