JP6672349B2 - Joint structure of outer wall panel and joint construction method - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure and a joint construction method for an outer wall panel in which a vertical joint between adjacent outer wall panels has fire resistance and water tightness in a steel frame building or the like such as a logistics facility.

  2. Description of the Related Art On the outer wall of a building such as a logistics facility or a convenience store, there is a type in which a plurality of outer wall panels having a metal sandwich structure in which non-combustible heat insulating material such as rock wool is sandwiched between steel plates are arranged vertically. Conventionally, in order to construct such an outer wall, a hull as a groundwork is attached first to a building frame composed of slabs, columns, beams, and the like, and the plurality of outer wall panels are attached to the hull. .

FIG. 7 shows an example of the fitting of the panel end in the conventional method. At the vertical joint 35 between the outer wall panels 22 adjacent to each other on the left and right, a vertical trunk edge 23 made of a square pipe is installed at the joint center over the vertical joint 35 on the indoor side of the outer wall panel 22. A bent piece 28a is provided at the end of the steel plate 28 constituting the surface of the outer wall panel 22, and the bent pieces 28a, 28a of the adjacent outer wall panels 22, 22 are overlapped on the vertical joint 35, and they are joined by tapping screws or the like. It is fastened to the body edge 23 with a screw 36. The outside of the vertical joint 35 is filled with a sealing material 34 to be waterproof. At the ends inside the outer wall panels 22, 22, joint seals 27a, 27b and a sealing material 27c are arranged on the outdoor side, and joint seals 27d are arranged on the indoor side. A fireproof material 33 such as a ceramic fiber is installed on the indoor side in the vertical joint 35 to secure fire resistance.

  FIG. 8 shows another example of the fitting of the panel end in the conventional method. In this example, packings 27e are respectively arranged on the outdoor side inside the ends of both outer wall panels 22 sandwiching the vertical joint 35, and a refractory material 27f such as a ceramic fiber is arranged so as to surround the packings 27e. Other configurations are the same as those of the conventional example of FIG.

Japanese Patent No. 3550304 JP 06-026187 A Japanese Patent No. 2859631 Japanese Patent No. 2818339 JP 2001-098664 A Japanese Patent No. 4157888

In the above-described conventional outer wall structure, the trunk edge 23 exists on the indoor side of the outer wall panel 22 at the position of the vertical joint 35. Therefore, even if water leaks or the like occurs at the vertical joint 35 of the outer wall panel 22 or if the vertical joint 35 is inspected for confirmation after the completion of the construction of the outer wall, the trunk edge 23 becomes an obstacle and the building The vertical joint 35 cannot be inspected and confirmed from the inside. Since the body edge 23 is a member for attaching the outer wall panel 22 to the building frame, the outer joint panel 23 cannot be removed and the vertical joint 35 cannot be inspected. Therefore, in order to inspect and confirm the vertical joint 35, a scaffold is required outside the building, and inspection and repair are difficult.
In addition, in order to make the outer wall a fireproof structure, a fireproof material 33 is necessary for the vertical joint 35 in addition to the sealing material 34. However, at the time of building construction, the fireproof material 33 and the sealing material 34 in the vertical joint 35 Also, since the processing is performed from the outdoor side, the external scaffold cannot be removed, and the transition to the subsequent process performed after the removal of the external scaffold is delayed.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a joint structure and a joint construction method for an outer wall panel in which inspection and confirmation of a vertical joint can be easily performed from the indoor side even after completion of construction, while using an outer wall of a fireproof structure. .

The joint structure of the outer wall panel according to the present invention is a joint structure of a vertical joint between outer wall panels adjacent to each other on the left and right, wherein the outer wall panel sandwiches a nonflammable heat insulating material between steel plates on the outdoor side and the indoor side. A vertical rim for attaching the outer wall panels adjacent to the left and right to the building frame is located at a position separated from the vertical joint in a panel width direction, and straddles the vertical joint on the indoor side of the outer wall panel. A plate-like holding member extending along the longitudinal direction of the vertical joint is attached to the indoor side surface of the outer wall panel adjacent to the left and right, a refractory material is interposed on the indoor side inside the vertical joint and a sealing member on the outdoor side. And a sealing tape is interposed between the pressing member and the indoor side surface of the outer wall panel.

According to this configuration, the vertical body edge for attaching the outer wall panel to the building frame is located apart from the vertical joint in the panel width direction. Therefore, when checking, confirming, and repairing water leakage at the vertical joint after the completion of the construction, the rim of the building does not become an obstacle, and the repair can be easily performed from the indoor side of the building. In addition, since there is no rim on the indoor side of the vertical joint, construction of fireproof materials and the like in the vertical joint can be performed from the indoor side, and the construction of the vertical joint from the outdoor side can be reduced, and the outer wall of the fireproof structure can be used. Despite this, outdoor scaffolds can be removed early and transition to post-processing can be done smoothly.

The holding member is disposed on an indoor side surface of the outer wall panel among members constituting a joint structure of the outer wall panel, and the entire holding member is located between adjacent body edges, and the holding member is provided. A fixing tool for fixing the outer wall panel to the outer wall panel and a fixing tool for fixing the outer wall panel to the body edge are different from each other, and the holding member does not remove the outer wall panel from the body edge. The panel is removable.
The pressing member may have bent portions on both sides of the vertical joint.
Further, the pressing member, the sealing tape, the refractory material is located in this order from the outdoor side of the vertical joint to the indoor side,
Construction at the vertical joint after the outer wall panel is installed,
After placing the refractory material on the indoor side portion in the vertical joint,
The holding member may be mounted on the indoor side surface of the outer wall panel in the order of attachment.

In the present invention, the pressing member is an angle material, and one plate-like piece of the angle material straddles the vertical joint and is in contact with the indoor side surface of the both outer wall panels, and the other plate-like piece is It may be attached to the body edge.
When the holding member is attached to the body edge as an angle material in this manner, the work of attaching the holding member becomes easy.
In the present invention, a plurality of the left and right outer wall panels are respectively arranged in the up-down direction, and a plurality of the outer wall panels arranged in the up-down direction are integrally attached to a plurality of mutually common body edges arranged in the panel width direction. The outer wall panel unit which can be transported to the outer wall panel unit may be configured.
When a plurality of outer wall panels are attached to the torso rim to form an outer wall panel unit in this way, the work of installing the outer wall panels on the building frame can be performed collectively, and the efficiency of construction is improved. In the conventional configuration in which the waist edge is located on the indoor side of the vertical joint, since the waist edge of the vertical joint straddles the outer wall panels on both sides, a plurality of outer wall panels must be enlarged together with the waist edge as an outer wall panel unit. However, according to the present invention, since the longitudinal body edge is located at a position away from the vertical joint, it is easy to increase the size of the outer wall panel unit.

The method for constructing the joint portion of the outer wall panel of the present invention is a method for constructing the joint structure of the outer wall panel of the present invention,
The joint is
The joint structure of a vertical joint between outer wall panels adjacent to each other on the left and right, wherein a vertical trunk edge for attaching each of the outer wall panels to a building frame is located at a position apart from the vertical joint in a panel width direction, and the outer wall On the indoor side of the panel, a plate-like holding member that straddles the vertical joint and extends along the longitudinal direction of the vertical joint is attached to the indoor side surface of the outer wall panel adjacent to the left and right, and a house inside the vertical joint is provided. A refractory material is interposed on the inside, a sealing member is interposed on the outdoor side, a joint seal is provided on a portion of the back surface of the outer wall panel along the vertical joint, and a sealing is provided between the holding member and an indoor side surface of the outer wall panel. With tape in between,
The holding member, the sealing tape, and the refractory material are located in this order from outside to inside of the vertical joint.
This construction method
For the construction at the vertical joint after the outer wall panel has been installed,
After placing the refractory material on the indoor side portion in the vertical joint,
The holding member is attached to the indoor side surface of the outer wall panel.

The joint structure of the outer wall panel of the present invention is a metal sandwich panel in which the outer wall panel is a non-combustible heat insulating material sandwiched between steel plates on the outdoor side and the indoor side , and has a joint structure of vertical joints between adjacent outer wall panels on the left and right. A vertical rim for attaching the outer wall panels adjacent to the left and right to the building frame is located at a position apart from the vertical joint in a panel width direction, and straddles the vertical joint on the indoor side of the outer wall panel. A plate-like holding member extending along the longitudinal direction of the vertical joint is attached to the indoor side surface of the outer wall panel adjacent to the left and right, a refractory material is interposed on the indoor side inside the vertical joint and a sealing member on the outdoor side. There interposed, joint seal is provided in a portion along the longitudinal joint of the back surface of the outer wall panel, sealing tape is interposed between the indoor side surface of the pressing and member the outer wall panel, the pressing member, Among the members constituting the joint structure of the outer wall panel, the outer wall panel is disposed on the indoor side surface, and the entirety of the pressing member is located between adjacent body edges, and the pressing member is attached to the outer wall panel. The fixing tool for fixing and the fixing tool for fixing the outer wall panel to the body edge are different from each other, and the holding member is detached from the outer wall panel without removing the outer wall panel from the body edge. Since it is possible, inspection and confirmation of the vertical joint can be easily performed even after the completion of the construction while using the outer wall of the fireproof structure.

It is a partial horizontal sectional view showing the joint part structure of the outer wall panel concerning a 1st embodiment of this invention. It is a perspective view of the outer wall panel unit to which the joint part structure is applied. It is an intermediate omission sectional view of the same outer wall panel. It is a front view of the construction process of the same outer wall. It is a partial horizontal sectional view showing the joint part structure of the outer wall panel concerning other embodiments of this invention. It is a partial horizontal sectional view showing the joint part structure of the outer wall panel concerning yet another embodiment of the present invention. It is a partial horizontal sectional view of a conventional example. It is a partial horizontal sectional view of another conventional example.

  A first embodiment of the present invention will be described with reference to FIGS. The building to which the joint structure of the outer wall panel is applied is, for example, a steel frame building such as a warehouse or a convenience store serving as a logistics facility.

FIG. 1 is a partial horizontal sectional view showing the joint structure of the outer wall panel. The joint structure of the outer wall panel is a joint structure of the vertical joint 15 between the outer wall panels 2 adjacent to the left and right in the outer wall 20 formed of the fire-resistant outer wall panel 2. The outer wall panel 2 constitutes an outer wall 20 by arranging a plurality of outer wall panels vertically and horizontally. Each outer wall panel 2 is a metal sandwich panel in which a noncombustible heat insulating material 7 is sandwiched between steel plates 8 and 9 on the outdoor side and the indoor side . The non-combustible heat insulating material 7 is an amorphous material such as rock wool, but may be a calcium silicate plate or a gypsum board. The steel plate 8 on the outdoor side has bent pieces 8a on the left and right edges, which are bent toward the indoor side to cover a portion of the small face of the non-combustible heat insulating material 7 on the outdoor side. The steel plate 9 on the indoor side also has bent pieces 9a on the left and right edges that are bent to the outdoor side and cover a part of the small face of the non-combustible heat insulating material 7 on the indoor side . These bent pieces 8 a and 9 a constitute the indoor side surface of the vertical joint 15. The bent pieces 8a and 9a are not continuous and avoid a thermal bridge between the steel plates 8 and 9 on the outdoor side and the indoor side.

The outer wall panel 2 is attached to a plurality of body edges 3 extending in the vertical direction, and is attached to a building frame 17 (see FIG. 4) via the body edge 3. In FIG. 1, the waist edge 3 does not exist at the position of the vertical joint 15, and the waist edge 3 closest to the vertical joint 15 is located at a position separated from the vertical joint 15 in the panel width direction. In the example shown in the figure, the rim 3 is made of lip channel steel, and the rim 3 near the panel end, that is, the rim 3 located near the vertical joint 15 opens inward in the panel width direction. The web portion 3a is located on the vertical joint 15 side. The rim 3 may be a square pipe. Attachment to the furring strip 3 of the outer wall panel 2 is carried out by fixed tool 10, such as a drill with tapping screw which penetrates the outer wall panel 2 on the front and back. In the figure, the solid of the head of the constant tool 10 is shown sinks from the surface of the outer wall panel 2 (see FIG. 3) recessed portion 2a of the joint portion between the upper and lower in the outer wall panel 2 fixed in This is because the tool 10 is located and its head is shown in FIG.

On the indoor side of the outer wall panels 2 and 2 adjacent to each other on the left and right sides , a plate-shaped pressing member 4 extending over the vertical joint 15 and extending in the longitudinal direction of the vertical joint 15 is provided on the adjacent outer wall to secure fire resistance. The panels 2 and 2 are attached to the indoor side surfaces with fixing members 11 such as bulb tight or drill screws. The holding member 4 is attached from the indoor side. A sealing tape 6 is interposed between the holding member 4 and the indoor side surfaces of the outer wall panels 2 and 2.

A refractory material 13 such as a ceramic fiber is provided on the indoor side inside the vertical joint 15, and a sealing member 14 serving as a rain barrier is provided on the outdoor side inside the vertical joint 15. The sealing member 14 is made of, for example, a wet sealing material, but may be a dry gasket. The pressing member 4 is made of a metal plate 3, such as more steel thickness 1.6 mm, of the portion located indoors sides of the outer wall panels 2, 2 adjacent to the right and left, from the point of penetrating the fastener 11 The central portion is also an uneven portion 4a having a cross-sectional shape in which the horizontal cross-sectional shape has a rectangular waveform. The portion of the pressing member 4 located on the indoor side of the vertical joint 15 is a trapezoidal corrugated uneven portion 4b protruding away from the vertical joint 15 to the indoor side. The pressing member 4 is formed by pressing a metal plate. In addition, the pressing member 4 may be simply an uneven portion having a step instead of the waveform.

A detailed example near the vertical joint 15 of the outer wall panel 2 will be described. A joint seal 7a that covers a portion of the outside of the wood face of the incombustible heat insulating material 7 is disposed on the indoor side of the bent piece 8a. The joint seal 7a is made of a non-combustible heat insulating material such as a gypsum board. Further, another joint seal 7b extending in a direction away from the end along the indoor side surface of the outdoor steel plate 8 from the outdoor end of the joint seal 7a is disposed, and the joint is further connected to the end of the joint seal 7b. A sealing material 7c is provided on the indoor side surface of the outer steel plate 8. A joint seal 7d made of a non-combustible heat insulating material such as a gypsum board is provided on the indoor side of the bent piece 9a so as to cover a part of the indoor side of the wooden face of the non-combustible heat insulating material 7.

Construction on the vertical joint 15 after the outer wall panel 2 is attached is performed in the following procedure.
(1) Arrangement of the sealing member 14 on the outdoor side portion in the vertical joint 15.
(2) Arrangement of the refractory material 13 on the indoor side portion in the vertical joint 15.
(3) Arrangement of the joint seal 7d and the sealing tape 6 near the vertical joint 15 of the outer wall panels 2 and 2 adjacent on the left and right.
(4) Attaching the holding member 4 to the indoor side surface of the outer wall panels 2 adjacent to the left and right straddling the vertical joint 15.

  FIG. 2 is a perspective view of an outer wall panel unit 1 to which the joint structure of the outer wall panel is applied. A plurality of the outer wall panels 2 are vertically arranged, and the plurality of outer wall panels 2 are attached to a plurality of mutually common body edges 3 arranged in the panel width direction to be large-sized, thereby forming the outer wall panel unit 1. I do. In the state of the outer wall panel unit 1, a plurality of outer wall panels 2 are collectively attached to the building frame 17 (FIG. 4). The building frame 17 is composed of columns 18, beams 19, floor slabs 21, and the like. A plurality of outer wall panel units 1 are arranged vertically and horizontally, and the body edge 3 is attached to the beam 19 or the floor flap 21 of the building frame 17 by bolting with a fastener (not shown) or the like. By increasing the size of the plurality of outer wall panels 2 as the outer wall panel unit 1 in this manner, the efficiency of installation work can be increased.

  According to the joint structure of the outer wall panel having this configuration, the vertical trunk edge 3 for attaching the outer wall panel 2 to the building frame 17 is located at a position separated from the vertical joint 15 between the adjacent outer wall panels 2 and 2 in the panel width direction. is there. Therefore, when checking, checking, or repairing water leakage at the vertical joint 15 after the completion of the construction, the rim 3 does not become an obstacle, and the holding member 4 is removed, so that it can be easily performed from the indoor side of the building. . In addition, since there is no trunk edge 3 on the back side of the vertical joint 15, the construction of the fireproof material and the like in the vertical joint 15 can be performed from the indoor side, and the construction of the vertical joint 15 from the outdoor side can be reduced, and the fireproof structure can be reduced. Although the outer wall 20 is used, the outdoor scaffold can be removed at an early stage, and the transition to the post-process can be smoothly performed. In addition, since the metal member pressing member 4 covers the refractory material 13 in the vertical joint 15 from the indoor side, the fire resistance is improved.

In this embodiment, since the pressing member 4 is formed of a metal plate having corrugated or stepped uneven portions 4a and 4b having a horizontal cross-sectional shape, the inner side surfaces of the outer wall panels 2 and 2 adjacent to each other on the left and right sides are formed. The ingress / egress error can be absorbed by the holding member 4. Further, since the horizontal cross-sectional shape of the pressing member 4 is uneven, the space longitudinally extending formed between the indoor side surface and the pressing member 4 of the outer wall panel 2, the intruding rainwater vertically joints 15 It becomes a gutter-like guide leading downward, and the waterproofness of the vertical joint 15 can be further enhanced.

FIG. 5 shows a partial horizontal sectional view of another embodiment of the present invention. In the joint structure of the outer wall panel, the joint seal 7a arranged on the indoor side of the bent piece 8a of the outdoor side steel plate 8 of the outer wall panel 2 in the previous embodiment shown in FIGS. Has been replaced. Also omitted joint seal 7b and the sealing member 7c were arranged along the indoor side surface of the outdoor side steel plates 8. Other configurations are the same as those of the previous embodiment.

FIG. 6 shows a partial horizontal sectional view of still another embodiment of the present invention. In the joint structure of the outer wall panel, in the previous embodiment shown in FIG. 5, an angle material is used as the pressing plate 4, and one of the plate-like pieces 4a straddles the vertical joint 15 and extends in the left and right directions. The other plate-shaped piece 4a which is in contact with the indoor side surface of the adjacent outer wall panels 2 and 2 is attached to the body edge 3 by fasteners 12 such as bolts. The bent piece 8a of the outdoor-side steel plate 8 of the outer wall panels 2 adjacent to the left and right has a bent end 8aa bent in the panel width direction at the tip thereof, and these bent ends 8aa, 8aa, The other plate-like member that comes into contact with the indoor side surface of the outer wall panels 2 adjacent to the left and right sides of the angle material serving as the pressing member 4 by a fixing tool 16 such as a tapping screw with a drill penetrating a portion where the 8aa are overlapped with each other. A piece 4 a is attached to the outer wall panel 2. Other configurations are the same as those of the embodiment shown in FIG.

  In the case of this embodiment, since the pressing member 4 is attached to the body edge 3 as an angle material, the attaching operation of the pressing member 4 becomes easy.

  In each of the above embodiments, the outer wall panel 2 is enlarged to form the outer wall panel unit 1. However, the present invention is not limited to the outer wall panel unit 1, but the outer wall panel 2 is attached to the frame 17 after the outer rim 3 is attached. The present invention can be applied to an outer wall in which the panel 2 is attached to the waist 3. Further, the present invention can be applied not only to the metal sandwich panel as the outer wall panel 2 but also to a joint structure in an outer wall using, for example, a ceramic outer wall panel.

DESCRIPTION OF SYMBOLS 1 ... Outer wall panel unit 2 ... Outer wall panel 3 ... Trunk edge 4 ... Holding member 4a ... Plate-shaped piece 13 ... Refractory material 14 ... Sealing member 15 ... Vertical joint 17 ... Building frame

Claims (4)

A joint structure of vertical joints between outer wall panels adjacent to each other on the left and right, wherein the outer wall panel is a metal sandwich panel sandwiching non-combustible heat insulating material between steel plates on the outdoor side and the indoor side, and the outer wall panels adjacent on the left and right sides. A vertical body edge attached to the building frame is located at a position apart from the vertical joint in a panel width direction, and a plate extending on the indoor side of the outer wall panel and extending along the longitudinal direction of the vertical joint over the vertical joint. Shaped holding member is attached to the indoor side surface of the outer wall panel adjacent to the left and right, a refractory material is interposed on the indoor side inside the vertical joint, and a sealing member is interposed on the outdoor side, and the back surface of the outer wall panel is the portion along the longitudinal joints joint seal is provided, the sealing tape is interposed between the indoor side surface of the pressing and member the outer wall panel, the pressing member constitutes the joint portion structure of the outer wall panel In the material, the fixing member and the outer wall panel are arranged on the indoor side surface of the outer wall panel, and the entire holding member is located between the adjacent rims, and the fixing member and the outer wall panel fix the holding member to the outer wall panel. A joint structure of the outer wall panel, wherein the fixing member fixed to the trunk edge is another fixing member, and the pressing member is detachable from the outer wall panel without removing the outer wall panel from the trunk edge .   2. The joint structure of the outer wall panel according to claim 1, wherein the pressing member has bent portions on both sides of the vertical joint. 3. The joint structure of the outer wall panel according to claim 1,
The holding member, the sealing tape, the refractory material is located in this order from the outdoor side of the vertical joint to the indoor side,
Construction at the vertical joint after the outer wall panel is installed,
After placing the refractory material on the indoor side portion in the vertical joint,
It can be performed in the order of mounting the holding member on the indoor side surface of the outer wall panel,
Joint structure of exterior wall panel. It is a method of constructing the joint structure of the outer wall panel according to claim 1,
For the construction at the vertical joint after the outer wall panel has been installed,
After placing the refractory material on the indoor side portion in the vertical joint,
Attach the holding member to the indoor side surface of the outer wall panel,
Construction method of joint structure of outer wall panel.

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