JP6970538B2 - Outer wall fixtures and outer wall structure - Google Patents

Description

The present invention relates to an outer wall fitting for supporting an outer wall panel on a building frame and an outer wall structure provided with the outer wall fitting.

Patent Document 1 discloses a large-format outer wall panel. The large-sized outer wall panel includes a panel frame and a plurality of vertically arranged outer wall materials including a heat insulating material attached to the panel frame. Further, in the panel frame, the outer peripheral frame portion in which the left and right vertical frame members and the horizontal frame members at the upper and lower ends are assembled in a rectangular shape, and the outer peripheral frame portions are arranged at intervals in the horizontal width direction, and the upper and lower ends are vertically arranged. It consists of a plurality of vertical furring strips joined to the horizontal frame material of.

Japanese Unexamined Patent Publication No. 2016-113839

By the way, a so-called Z plate (lightning bolt plate) is known as an outer wall mounting tool for supporting an outer wall panel on a building frame. By using this Z plate, it becomes possible to receive the outer wall panel in the out-of-plane direction. Further, Patent Document 1 discloses that the fastener for attaching the skeleton receives the weight of the outer wall panel on the floor slab which is the skeleton of the building. However, the skeleton mounting fastener does not receive the outer wall panel in the out-of-plane direction by using the rising piece provided on the building skeleton.

In view of the above circumstances, the present invention is an outer wall mounting tool capable of receiving the outer wall panel in the out-of-plane direction by using a rising piece provided on the building skeleton and receiving the weight of the outer wall panel on the building skeleton. It is an object of the present invention to provide an outer wall structure provided with the outer wall fitting.

In order to solve the above-mentioned problems, the outer wall mounting tool of the present invention has a stepped vertical surface portion formed in a stepped manner or assembled in a stepped manner, and a horizontal plate portion provided on the lower side of the stepped vertical surface portion. The horizontal plate portion is provided with a load transmission portion for transmitting the load of the outer wall panel to the building frame.

With the above configuration, the stepped vertical surface portion allows the outer wall panel to be received in the out-of-plane direction by using the rising piece portion provided on the building frame. Further, the weight of the outer wall panel can be received on the building frame by the load transmitting portion provided on the horizontal plate portion.

A rib portion may be provided between the stepped vertical surface portion and the horizontal plate portion. According to this, it is possible to secure sufficient rigidity by the rib portion while reducing the thickness of the material constituting the outer wall mounting tool as much as possible.

The horizontal plate portion may be provided with a protruding screw insertion hole through which a protruding screw erected on the building frame side is inserted. According to this, by screwing the nut into the protruding screw passed through the protruding screw insertion hole, it is possible to prevent the outer wall panel from rising.

The horizontal plate portion may be provided with a pin insertion hole through which a positioning pin erected on the building frame side is inserted. According to this, by inserting the positioning pin into the pin insertion hole, the outer wall mounting tool is fixed at the specified position of the building frame, and the positioning of the outer wall panel becomes easy.

Further, in the outer wall structure of the present invention, the outer wall mounting tool is attached to the outer wall panel, and the stepped vertical surface portion of the outer wall panel is locked to the rising piece portion provided on the building frame. It is a feature.

The outer wall mounting tool may be attached to a rising piece provided on the floor slab as the building frame.

The outer wall panel may be received in the out-of-plane direction by a stepped plate member formed or assembled in a stepped manner, which is provided separately from the outer wall mounting tool. According to this, it is possible to share and receive the load in the out-of-plane direction of the outer wall panel by a large number of stepped plate members having a simple shape, and it is possible to reduce the cost of the outer wall structure.

In the place where the windproof beam is located, the stepped plate member is provided at all the mounting points, and in the place where the floor slab is located, the outer wall mounting tool is provided at some mounting points, and at other mounting points. The stepped plate member may be provided.

The outer wall attachment may be fixed to the vertical furring strip which is the base material of the outer wall panel.

The present invention has the effect that the outer wall panel can be received in the out-of-plane direction and the weight of the outer wall panel can be received on the building frame.

It is a schematic perspective view which showed the structural example of the outer wall panel. FIG. 1A is a cross-sectional view showing the upper part and the lower part of the outer wall material in the outer wall panel of FIG. 1, and FIG. 1B is a cross-sectional view of the fitting portion of the outer wall material arranged vertically in FIG. .. It is the front view which showed the groundwork pedestal of the outer wall panel by a solid line, and showed the outer wall panel by a virtual line. It is a schematic perspective view which showed the outer wall attachment and the outer wall structure of embodiment of this invention. It is a schematic exploded perspective view which showed the outer wall attachment and the outer wall structure of embodiment of this invention. It is a schematic side view which looked at the outer wall structure of FIG. 4 from the side. It is a schematic side view which looked at the outer wall structure of FIG. 4 from the other side. It is explanatory drawing which showed the arrangement mode of the outer wall attachment and the stepped plate member in the outer wall structure of embodiment of this invention. It is a schematic perspective view which showed the outer wall attachment of the other embodiment of this invention. FIG. 3A is an explanatory view showing the outer wall mounting tool, and FIG. 3B is an explanatory view showing the outer wall mounting tool of another embodiment having a stepped vertical surface portion assembled in a stepped manner. be. 10 (B) is a front view, a plan view, and a side view showing an example in which channel steel is used in the outer wall mounting tool. It is a front view, the plan view and the side view which exemplify the stepped plate member provided in the place which does not need self-weight receiving in the outer wall structure of this embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, the outer wall panel 5 has, for example, a structure in which a plurality of horizontally long outer wall materials 51 are arranged one above the other and connected to each other by a base material 52. In the example shown in FIG. 1, the base material 52 includes two vertical furring strips 52a at the most extreme positions and, for example, four vertical furring strips 52b on the center side. The vertical furring strip 52a is made of a closed cross-section steel material such as a square steel pipe. On the other hand, the vertical furring strip 52b is made of an open cross-section steel material such as a lip channel steel or a channel steel. It should be noted that all of the base material 52 may be a vertical furring strip 52a which is a closed cross-section steel material.

The outer wall surface material 51 is, for example, as shown in FIGS. 2A and 2B, a metal sandwich panel in which a noncombustible heat insulating material 51a is sandwiched between steel plates 51b and 51c. When two outer wall materials 51 are arranged one above the other, the outer wall material 51 located in the upper stage is formed in two recesses 51d formed in the upper end surface of the outer wall material 51 located in the lower stage in the horizontal direction. By fitting the two convex portions 51e formed on the lower end surface in the lateral width direction, the upper and lower outer wall surface members 51 are combined so as not to be displaced from each other in the out-of-plane direction.

As shown in FIG. 3, by using the ground lumber 1, the outer wall panel 5 in which the plurality of outer wall materials 51 are arranged one above the other and connected by the base material 52 is attached to the outer wall of the building frame to which the outer wall panel 5 is attached. It can be assembled in a place different from the place.

The ground timber 1 has a strut portion 11A located on the side surface side of the outer wall surface material 51, a back side strut portion 11B arranged at a position on the rear surface side of the outer wall surface material 51, and the strut portion 11A. It includes three beam portions 12 that are hung on the lower side, the middle side, and the upper side of 11B, respectively.

For example, the lower side of the support column 11A is fixed to the front side of the lower beam portion 12, and the center side and the upper side of the support column portion 11A are on the front side of the middle side and the upper beam portion 12. Each is fixed via a spacer. The middle and upper beam portions 12 are provided on the rear surface side of the vertical furring strips 52a and 52b. Further, the lower end of the back support column portion 11B is fixed on the upper surface of the lower beam portion 12, and the upper portion of the back side support column portion 11B is fixed to the front surface side of the upper beam portion 12.

On the beam portion 12 located in the upper stage and the beam portion 12 located in the middle stage, the base material holder 2 for holding the vertical furring strip 52a made of a closed cross-section steel material and the vertical furring strip 52b made of an open cross-section steel material. The base material holder 3 for holding the above is fixed. The beam portion 12 located at the lower stage is provided with a positioning convex portion into which the vertical furring strips 52a and 52b are inserted or a positioning plate portion with which the side surfaces of the vertical furring strips 52a and 52b are abutted.

After setting the vertical furring strips 52a and 52b, the operator sets the outer wall material 51 one by one, screwes a screw or the like into the upper end side of the set outer wall material 51, and inserts the outer wall material 51. It is fixed to the vertical furring strips 52a and 52b set earlier.

As shown in FIGS. 4 and 5, the base material 52 (vertical furring strips 52a and 52b) of the outer wall panel 5 is provided with the outer wall attachment 4.

The outer wall mounting tool 4 includes a stepped vertical surface portion 41 formed in a stepped manner and a horizontal plate portion 42 provided on the lower side of the stepped vertical surface portion 41. The horizontal width of the horizontal plate portion 42 is wider than the horizontal width of the stepped vertical surface portion 41. A substantially triangular rib portion 43 is provided between the stepped vertical surface portion 41 and the horizontal plate portion 42 on each edge side of the stepped vertical surface portion 41 by welding or the like.

The stepped vertical surface portion 41 is formed by using, for example, a Z plate, and when the upper surface portion is attached in contact with the base material 52, the lower surface portion is separated from the base material 52 and becomes a base material 52. A gap of a certain width is formed between them. An insertion hole is formed in the upper surface portion in the horizontal direction, and a screw portion of a bolt 41a provided so as to project horizontally from the inside of the base material 52 is passed through the insertion hole, and a nut is passed through the screw portion. By screwing 41b, the outer wall mounting tool 4 can be fixed to the base material 52.

On the other hand, a load receiving plate 61 made of a steel material or the like is provided on the floor slab 6 as a building frame, and the load receiving plate 61 is passed through the outdoor side edge of the floor slab 6. An L angle 62 is provided. The through L angle 62 is provided with its horizontal piece portion 62a in contact with the upper surface of the load receiving plate 61. Further, the rising piece portion 62b of the through L angle 62 is located on the outdoor side. The outer wall panel 5 is attached to the building by inserting the rising piece portion 62b into the gap formed by the stepped vertical surface portion 41.

A pin insertion hole 42a is formed at the center position (between the rib portions 43) of the horizontal plate portion 42 of the outer wall mounting tool 4. Further, a screw hole 42b is formed at one end side position of the horizontal plate portion 42, and a load receiving bolt (load transmission portion) 42c having a rounded tip is screwed into the screw hole 42b from above. NS. A locknut or washer is attached to the load receiving bolt 42c. Further, a protruding screw insertion hole 42d is formed at another end side position of the horizontal plate portion 42.

A positioning pin 61a and a protruding screw 61b are erected on the load receiving plate 61. The protruding screw 61b has no head and is entirely composed of a screw, and the lower end thereof is embedded in the load receiving plate 61 and erected, and is fixed by welding. The positioning pin 61a is provided at a position corresponding to the pin insertion hole 42a of the horizontal plate portion 42, and the protruding screw 61b is provided at a position corresponding to the protruding screw insertion hole 42d of the horizontal plate portion 42. Has been done. A through hole through which the positioning pin 61a and the protruding screw 61b pass is formed in the horizontal piece portion 62a of the through L angle 62. On the other hand, no through hole is formed in the portion corresponding to the load receiving bolt 42c, and the tip of the load receiving bolt 42c hits the upper surface of the horizontal plate portion 42.

As shown in FIGS. 6 and 7, when the outer wall panel 5 is fastened to the through L angle 62 on the floor slab 6, the outer wall panel 5 is lifted by a crane or the like, and the stepped vertical surface portion 41 is used to lift the outer wall panel 5. By positioning the gap upward and lowering it, the rising piece portion 62b is inserted into the gap. At this time, the protruding screw 61b is passed through the protruding screw insertion hole 42d of the horizontal plate portion 42, and the positioning pin 61a is passed through the pin insertion hole 42a of the horizontal plate portion 42. Then, the downward protrusion amount of the load receiving bolt 42c is adjusted, and at a position where the outer wall panel 5 has a specified height, the weight of the outer wall panel 5 passes through the load receiving bolt 42c and the horizontal of the through L angle 62. It is transmitted to one part 62a.

Next, the nut 42e screwed into the protruding screw 61b is tightened at a position where the outer wall panel 5 has a predetermined height as described above. By tightening the nut 42e, the horizontal plate portion 42 is pressed downward. That is, by tightening the nut 42e, the upward movement of the outer wall mounting tool 4 is restricted. A washer may be provided on the lower side of the nut 42e.

With the above configuration, the stepped vertical surface portion 41 can receive the outer wall panel 5 in the out-of-plane direction by using the rising piece portion 62b provided on the building frame (floor slab or the like). Further, the weight of the outer wall panel 5 can be received on the building frame by the load receiving bolt (load transmitting portion) 42c provided on the horizontal plate portion 42. That is, the single outer wall mounting tool 4 can receive the outer wall panel 5 in the out-of-plane direction and can transmit the load of the outer wall panel 5, improving the workability.

When the rib portion 43 is provided between the stepped vertical surface portion 41 and the horizontal plate portion 42, the rib portion 43 reduces the thickness of the material constituting the outer wall mounting tool 4 as much as possible. It becomes possible to secure sufficient rigidity.

When the horizontal plate portion 42 is provided with a protruding screw insertion hole 42d for inserting a protruding screw 61b erected on the building frame side, a nut 42e is screwed into the protruding screw 61b passed through the protruding screw insertion hole 42d. By combining them, it is possible to prevent the outer wall panel 5 from rising.

When the horizontal plate portion 42 is provided with a pin insertion hole 42a through which a positioning pin 61a erected on the building frame side is inserted, the positioning pin 61a is inserted into the pin insertion hole 42a to be mounted on the outer wall. The tool 4 is fixed at a specified position on the building frame, and the positioning of the outer wall panel 5 becomes easy.

Further, FIG. 8 shows an example of the overall configuration of attaching one large-sized outer wall panel 5 to the skeleton. In this overall configuration example, the outer wall panel 5 is also received in the out-of-plane direction by the Z plate 400 as a stepped plate member provided separately from the outer wall mounting tool 4. The outer wall panel 5 has a size of, for example, 5800 mm in width and 7200 mm in length, and includes six vertical furring strips 52a and 52b. Further, in FIG. 8, the ◯ mark indicates the place where the outer wall mounting tool 4 is provided, and the Δ mark indicates the place where the Z plate 400 is provided.

In the outer wall panel 5, Z plates 400 are provided at all the mounting points for the through L angle portion (windproof beam level) in the windproof beam, and the through L angle portion (slab) in the floor slab 6 is provided. For the level), the outer wall mounting tool 4 is provided at some mounting points, and the Z plate 400 is provided at other mounting points. For example, at the slab level of the outer wall panel 5, the Z plate 400 is attached to each of the outermost vertical furring strips 52a, and the outer wall mounting tool 4 is attached to each of the innermost vertical furring strips 52b. The Z plate 400 is attached to each vertical furring strip 52b inside the vertical furring strip 52b.

In such an outer wall structure, the outer wall panel 5 is received in the out-of-plane direction by the two outer wall fittings 4 and many other Z plates 400, so that the outer wall fittings 4 and the Z plate 400 are individually used. The burden can be reduced. Then, the weight of the outer wall panel 5 can be transmitted to the floor slab 6 by the two outer wall attachments 4. Of course, the number of the outer wall attachments 4 provided on one outer wall panel 5 is not limited to two.

Here, when an even number of the vertical furring strips 52a and 52b are provided, it is preferable that the outer wall fittings 4 are provided on the two vertical furring strips at at least symmetrical positions at the slab level of the outer wall panel 5. .. Further, when an odd number of the vertical furring strips 52a and 52b are provided, the outer wall mounting tool 4 is attached to the two vertical furring strips at a position at least symmetrical with the central vertical furring strip at the slab level of the outer wall panel 5. It should be provided.

Next, another embodiment will be described with reference to FIG. The outer wall mounting tool 4A of this embodiment includes a stepped vertical surface portion 41 formed in a stepped manner and a horizontal plate portion 42 provided on the lower side of the stepped vertical surface portion 41. The horizontal width of the horizontal plate portion 42 is about the same as the horizontal width of the stepped vertical surface portion 41. A rib portion 43 is provided between the stepped vertical surface portion 41 and the horizontal plate portion 42 on each edge side of the stepped vertical surface portion 41.

The stepped vertical surface portion 41 is made of, for example, a Z plate, and when the upper surface portion is provided in contact with the base material 52, the lower surface portion is separated from the base material 52 and is between the base material 52 and the base material 52. It is designed to form a certain gap. An insertion hole is formed in the upper surface portion, and a screw portion of a bolt 41a projecting from the base material 52 is passed through the insertion hole, and a nut 41b is screwed into the screw portion. The outer wall mounting tool 4A can be fixed to the base material 52.

A screw hole 42b is formed at the center position (between the rib portions 43) of the horizontal plate portion 42 of the outer wall mounting tool 4A, and a load receiving bolt (load transmission portion) having a rounded tip is formed in the screw hole 42b. 42c is screwed from above.

Even in the outer wall mounting tool 4A having such a configuration, the outer wall panel 5 can be moved in the out-of-plane direction by using the rising piece portion 62b of the through L angle 62 provided on the building frame (floor slab or the like) by the stepped vertical surface portion 41. Can be taken in. Further, the weight of the outer wall panel 5 can be received on the building frame by the load receiving bolt 42c provided on the horizontal plate portion 42.

FIG. 10 (A) shows the fixed position-engagement in the outer wall mounters 4 and 4A, where the edge dimension of the bolt hole of the stepped vertical surface portion 41 from the stepped bent portion is a and the adjustment allowance in the vertical direction is b. It shows that the shortest distance of the stop position is a + b. Further, FIG. 10B shows an outer wall mounting tool 4B having a stepped vertical surface portion 41 assembled in a stepped manner by a washer 411 and a plate portion 412 as spacers. The washer 411 is provided on the vertical furring strip so that the front surface thereof is located on the outdoor side of the rising piece portion 62b. Further, the plate portion 412 is formed longer than the washer 411, and is provided so as to be overlapped with the washer 411. The horizontal plate portion 42 is provided on the lower side of the plate portion 412. With this outer wall mounting tool 4B, only the dimension c to the bolt hole of the washer 411 is required, and c <a + b can be obtained. Therefore, the distance between the fixed position and the locking position is set to the outer wall mounting tool 4 and 4A. It can be shorter than that. The washer 411 may be welded to the vertical furring strip, or may be co-sewn with a bolt passed through the bolt hole.

FIG. 11 shows an example in which channel steel is used as the plate portion 412 in the outer wall mounting tool 4B. When the plate portion 412 made of such channel steel is used, the rigidity can be easily increased as compared with the case where the plate portion 412 made of a flat plate is used. When the channel steel is used, the surface portions facing each other function as the rib portion 43. Further, not limited to the above channel steel, steel materials such as L-angle can also be used.

Further, the above-mentioned structure in which the washer serving as the spacer and the plate portion are assembled in a stepped manner may be applied to the stepped plate member provided in a place where the weight receiving is not required. For example, as shown in FIG. 12, the stepped plate member 400A is configured to be stepped together by a washer 401 and a plate portion 402 as spacers. Channel steel or the like can be used as the plate portion 402.

Although the embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to that of the illustrated embodiment. It is possible to make various modifications and modifications to the illustrated embodiment within the same range as the present invention or within the same range.

1: Base material holder 2: Base material holder (closed cross-section steel material)
3: Base material holder (open cross section steel material)
4: Outer wall mounter 4A: Outer wall mounter 4B: Outer wall mounter 5: Outer wall panel 6: Floor slab 11A: Strut part 11B: Back side strut part 12: Beam part 41: Stepped vertical surface part 41a: Bolt 41b: Nut 42 : Horizontal plate portion 42a: Pin insertion hole 42b: Screw hole 42c: Load receiving bolt 42d: Protruding screw insertion hole 42e: Nut 43: Rib portion 400: Z plate (step plate member)
400A: Stepped plate member 401: Washer 402: Plate 411: Washer 412: Plate 51: Outer wall surface material 51a: Non-combustible heat insulating material 51b: Steel plate 51c: Steel plate 51d: Concave 51e: Convex 52: Base material 52a: Vertical Furnace (closed cross section)
52b: Vertical furring strip (open cross section)
61: Load receiving plate 61a: Positioning pin 61b: Protruding screw 62: Through L angle 62a: Horizontal piece 62b: Rising piece

Claims (5)

It is provided with a stepped vertical surface portion formed in a stepped manner or assembled in a stepped manner, and a horizontal plate portion provided on the lower side of the stepped vertical surface portion, and the load of the outer wall panel is applied to the horizontal plate portion. An outer wall fixture with a load transfer part that transmits to the building frame is attached to the outer wall panel.
The stepped vertical surface portion of the outer wall mounting tool is locked to the rising piece portion provided on the building frame side.
The outer wall fixture is attached to the rising piece provided on the floor slab as the building frame.
Further, the outer wall panel is received in the out-of-plane direction by a stepped plate member formed or assembled in a stepped manner, which is provided separately from the outer wall mounting tool.
The above-mentioned stepped plate member is provided at all the mounting points where the windproof beam is located.
An outer wall structure characterized in that the outer wall mounting tool is provided at a part of the mounting points at a place where the floor slab is located, and the stepped plate member is provided at another mounting place . In the outer wall structure of claim 1, the outer wall structure, wherein a rib part is provided between the stepped vertical surface and the horizontal plate portion. In the outer wall structure according to claim 1 or claim 2, the outer wall structure to the horizontal plate portion, comprising the protruding screw insertion hole for inserting the protruding screws erected on the building skeleton side. An outer wall structure in the outer wall structure, characterized by comprising a pin insertion holes for inserting the positioning pin provided upright on the building skeleton side according to any one of claims 1 to 3. The outer wall structure according to any one of claims 1 to 4 , wherein the outer wall attachment is fixed to a vertical furring strip which is a base material of the outer wall panel.

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