JP2007039959A - External wall panel and method of producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an external wall panel which is good in water cutoff performance at a connection portion inclusive of a joint portion, and easily produceable through a fewer construction steps, and to provide a method of producing the external wall panel. <P>SOLUTION: The external wall panel P is formed of an external material 3, a panel frame 1, and an internal water cutoff member 5 arranged between the same. To produce the external wall panel, concrete 11 is poured in a form K, and the panel frame 1 having the internal water cutoff member 5 and the anchor 2a connected thereto is lowered into the poured concrete 11 to a predetermined level until the anchor 2a is embedded in the concrete 11 and the internal water cutoff member 5 is abutted on the same. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an outer wall panel and a manufacturing method thereof. More specifically, the present invention relates to an outer wall panel having improved water-stopping properties at a joint portion and a manufacturing method thereof.

  Conventionally, in the outer wall structure of a building using a so-called outer wall panel in which an exterior material composed of a concrete plate or the like and a heat insulating material are attached to a panel frame to form a panel, The following three construction methods are used.

  As shown in FIG. 7, the first method is to install a relatively hard water-stopping material 102 on the joint 101, and then apply a high pressure on both sides of the water-stopping material 102 installed from both sides. The water is stopped by fixing 104.

  In the second method, as shown in FIG. 8, after fixing the exterior materials 111 and 112 on both sides, a gasket 113 with water-stopping fins made of an elastic material such as silicone rubber is used between the end surfaces of the exterior materials 111 and 112. The joint is stopped by press-fitting into the joint.

  As shown in FIG. 9, after fixing the exterior materials 121 and 122 on both sides, a third method is to place a gasket 123 made of an elastic material such as expandable foam rubber between the end surfaces of the exterior materials 121 and 122. The joint is stopped by press-fitting into the joint.

  However, in the first method, it is necessary to fix the exterior materials 103 and 104 while applying high pressure to the water-stopping material 102 from both sides, so that the work requires skill and the end surfaces of the exterior materials 103 and 104 are smooth. If it is not, there is a problem that good water stoppage cannot be obtained.

  Also in the second method, it is necessary to press-fit the gasket 113 against the frictional force with the end surfaces of the exterior materials 111 and 112, which is complicated and the end surfaces of the exterior materials 111 and 112 are not smooth. In such a case, there is a problem that good water stoppage cannot be obtained.

  Also in the third method, it is necessary to press-fit the gasket 123 against the frictional force with the end surfaces of the exterior materials 121 and 122, the work is complicated, and the end surfaces of the exterior materials 121 and 122 are not smooth. In such a case, there is a problem that good water stoppage cannot be obtained.

  The present invention has been made in view of the problems of the related art, and has an excellent water-stopping property at a joint portion including joints, and can reduce the number of construction steps and facilitate the construction, and the production thereof. It aims to provide a method.

  The outer wall panel of the present invention is an outer wall panel in which an exterior material is held on a panel frame, and an internal water blocking member is disposed between the exterior material and the panel frame.

  In the outer wall panel of the present invention, it is preferable that the internal water blocking member is a foam having closed cells, and the surface facing the exterior material has a large number of holes formed by cutting the closed cells. .

  Moreover, in the outer wall panel of this invention, it is preferable that the adhesion layer is formed in the surface which faces the panel frame of an internal water stop member.

  Furthermore, in the outer wall panel of the present invention, it is preferable that a joint water-stopping member is disposed on the end face of the exterior material.

  Furthermore, in the outer wall panel of the present invention, it is preferable that a column water-stopping member is disposed on the panel frame.

  The method for producing an outer wall panel according to the present invention is a method for producing an outer wall panel in which an exterior material is held on a panel frame, a procedure for placing concrete in a mold, and a predetermined position above the placed concrete. A procedure for setting a holding frame having an anchor and a panel frame on which an internal water-stopping member is mounted, a procedure for lowering the panel frame by a predetermined amount, burying the anchor in concrete, and bringing the internal water-stopping member into contact with the concrete And a procedure for demolding after a predetermined curing.

  In the method for manufacturing an outer wall panel according to the present invention, it is preferable that a horizontal vibration is applied to the panel frame after the panel frame is lowered by a predetermined amount.

  Moreover, in the manufacturing method of the outer wall panel of this invention, it is preferable that the procedure which arrange | positions the receiving member in which a joint water stop member is mounted | worn is added in the formwork.

  Furthermore, in the manufacturing method of the outer wall panel of this invention, it is preferable that the column part water stop member is attached to the panel frame.

  Therefore, the outer wall panel of the present invention is provided in the outer wall structure.

  Since the outer wall panel of the present invention is configured as described above, it is possible to obtain an excellent effect that water can be stopped at the joint including the joint only by installing the outer wall panel.

  In addition, water can be stopped at joints including joints simply by installing the outer wall panel, so that no special construction for water stop is required, construction is simplified and construction time is shortened. An effect is also obtained.

  Hereinafter, although the present invention is explained based on an embodiment, referring to an accompanying drawing, the present invention is not limited only to this embodiment.

  1 and 2 are horizontal cross-sectional views showing a joint portion of an outer wall structure using an outer wall panel according to an embodiment of the present invention.

  As shown in FIGS. 1 and 2, the joint portion J includes a left outer wall panel (hereinafter simply referred to as a left outer wall panel) PL in the drawing and a right outer wall panel (hereinafter simply referred to as a right outer wall panel) PR in the drawing as a steel frame C. It is assumed that they are joined with a gap between them.

  Here, since the left outer wall panel PL and the right outer wall panel PR have the same configuration, only the left outer wall panel PL will be described below, and the description of the right outer wall panel PR will be omitted.

  The left outer wall panel PL includes a panel frame 1, an exterior material 3 attached to the panel frame 1 via a holder 2, a joint water-stopping member 4 provided on the right end surface of the exterior material 3, What is provided with an internal water-stop member 5 that forms a water-stop between the exterior material 3 and a heat-insulating material 6 with a moisture-proof sheet affixed to the indoor side surface fitted into the panel frame 1 behind the exterior material 3 It is said.

  The panel frame 1 has a known structure in which an angle material is formed in a frame shape.

  The holder 2 has a known structure in which an anchor 2a embedded in the exterior material 3 is held on a holding member 2b provided on the panel frame 1 with bolts and nuts.

  The exterior material 3 is formed by attaching a tile 3b to the surface of a concrete plate 3a such as a GRC plate, for example.

  The joint water stop member 4 is made of, for example, silicone rubber, and has a base portion 4a and a water stop portion 4b integrally formed in a groove shape from the base portion 4a as shown in FIG. In the joint water-stopping member 4, the water-stopping fins 4c constituting the water-stopping portion 4b are brought into contact with the left end surface of the exterior material 3 of the right outer wall panel PR to make the joint 7 water-stopped.

  Moreover, the mounting of the joint water-stopping member 4 to the exterior material 3 is performed by, for example, embedding the receiving member 4d in the right end portion of the exterior material 3 and fitting the base 4a of the joint-water-stopping member 4 into the receiving member 4d. (See FIG. 2).

  The internal water-stop member 5 is a long bar-shaped member having a square cross section made of a foam of a synthetic resin (for example, urethane or ethylene / propylene / diene rubber (EPDM)) having a closed cell structure (single cell) having a high water-stop structure. Yes, it is supposed to stop water without any pressure applied.

  Moreover, as shown in FIG. 3, the internal water blocking member 5 has an adhesive layer 5a provided on one surface, and the adhesive layer 5a allows the outer surface of one side of the panel frame 1 to be a smooth surface. It shall be adhere | attached along the inner side to 1a. On the other hand, the surface opposite to the surface bonded to the panel frame 1 of the internal water blocking member 5, that is, the surface 5 b on the exterior material 3 side is to improve the water blocking property by improving the adhesion with the concrete plate 3 a, As shown in FIG. 3, the surface has innumerable fine holes 5 c formed by cutting closed cells.

  The heat insulating material 6 is attached to the panel frame 1 with a predetermined gap from the back surface of the exterior material 3.

  Hereinafter, the production of the outer wall panel preparation M will be described with reference to FIGS. 4 to 6. Here, the outer wall panel preparation M is a state in which the exterior material 3 is mounted on the panel frame 1.

  Procedure 1: The concrete 11 from the concrete introduction pipe Q is placed in the formwork K in which the receiving member is disposed at a predetermined position (see FIG. 4).

  Procedure 2: The panel frame 1 on which the holder 2 and the internal water blocking member 5 are mounted is set at a predetermined position above the placed concrete 11 (see FIG. 5).

  Procedure 3: The panel frame 1 is lowered by a predetermined amount, the anchor of the holder 2 is embedded in the concrete by a predetermined amount, and the surface 5b in which the hole 5c of the internal water blocking member 5 is formed is brought into contact with the concrete (see FIG. 6). This procedure is preferably done promptly after placing the concrete.

  Procedure 4: A slight horizontal vibration is applied to the panel frame 1 when the panel frame 1 is lowered by a predetermined amount so that the interface between the inner water blocking member 5 and the concrete is brought into close contact with the concrete to prevent partial unevenness.

  Procedure 5: Demold after a predetermined curing. Thereby, the outer wall panel preparation body M is completed.

  In order to confirm the water-stopping performance at the joint between the internal water-stopping member 5 and the exterior material 3 in the obtained outer wall panel preparation M, about 150 mmAq toward the interface between the internal water-stopping member 5 and the external material 3. Water spraying was performed for about 3 minutes, but no water leakage was observed on the opposite side.

  Thus, the water stop of the joint portion J of the outer wall structure using the outer wall panel P configured as described above is primarily stopped at the joint by the joint water-stopping member 4, and the internal water-stopping member 5, the panel frame 1, and the steel frame Secondary water stop is made by the pillar water stop member 8 disposed between the C and C. In addition, as the pillar part water stop member 8, what consists of hydrophobic urethane foams, for example is used.

  As described above, the water stoppage of the joint portion J of the outer wall structure using the outer wall panel P of the present embodiment is primarily stopped by the joint water stop member 4 and is stopped by the internal water stop member 5 and the column water stop member. Since the next water stop is made, the water stop performance at the joint J of the outer wall structure is improved. Moreover, since the joint water-stopping member 4 and the internal water-stopping member 5 are mounted on the outer wall panel P when the outer wall panel P is manufactured, work on the construction site can be made unnecessary, quality homogenization, construction simplification, and construction The period can be shortened. In this case, by attaching the pillar water stop member 8 to the panel frame 1 at the time of manufacturing the outer wall panel P, the construction can be further simplified and the construction period can be shortened.

  The present invention can be applied to an outer wall structure by a panel conversion method.

It is a horizontal sectional view of the joined part of the outer wall structure using the outer wall panel concerning one embodiment of the present invention. It is the principal part enlarged view. It is an enlarged view of an internal water stop member. It is explanatory drawing of the manufacture procedure of the outer wall panel which concerns on one Embodiment of this invention, Comprising: A mode that concrete is laid in the formwork is shown. It is the same explanatory drawing, and shows a mode that the panel frame was set to the upper predetermined position of the placed concrete. It is the same explanatory drawing, Comprising: A mode that the panel frame is dropped by a predetermined amount and an internal water stop member is made to contact with concrete is shown. It is a horizontal sectional view showing an example of the conventional water stop structure of a joint. It is a horizontal sectional view which shows the other example of the conventional water stop structure of a joint. It is a horizontal sectional view showing still another example of a conventional joint water stop structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Panel frame 2 Holder 3 Exterior material 4 Joint waterproofing member 5 Internal waterproofing member 6 Heat insulating material 7 Joint 8 Pillar part waterproofing member 11 Concrete J Joint P External wall panel

Claims (10)

It is an outer wall panel formed by holding an exterior material on a panel frame,
An outer wall panel, wherein an internal water blocking member is disposed between the exterior material and the panel frame.   2. The outer wall according to claim 1, wherein the internal water blocking member is a foam having closed cells, and a surface facing the exterior material has a plurality of holes formed by cutting the closed cells. panel.   The outer wall panel according to claim 2, wherein an adhesive layer is formed on a surface of the internal water blocking member facing the panel frame.   The outer wall panel according to claim 1, wherein a joint water-stopping member is disposed on an end face of the exterior material.   The outer wall panel according to claim 1, wherein a column water-stop member is disposed on the panel frame. A method for producing an outer wall panel in which an exterior material is held on a panel frame,
A procedure for placing concrete in the formwork;
A procedure for setting a panel frame on which a holder having an anchor and an internal water-stopping member are mounted at a predetermined position above the placed concrete;
A procedure for lowering the panel frame by a predetermined amount, burying the anchor in concrete, and contacting the internal water blocking member with the concrete;
A method for producing an outer wall panel comprising a step of demolding after a predetermined curing.   7. The method for manufacturing an outer wall panel according to claim 6, wherein after the panel frame is lowered by a predetermined amount, horizontal vibration is applied to the panel frame.   7. The method for manufacturing an outer wall panel according to claim 6, further comprising a step of arranging a receiving member to which the joint water-stopping member is mounted in the mold.   7. The method for producing an outer wall panel according to claim 6, wherein a pillar water-stop member is attached to the panel frame.   An outer wall structure comprising the outer wall panel according to any one of claims 1 to 5.

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