JP5255257B2 - Exterior wall structure and construction method thereof - Google Patents

Description

  The present invention relates to an outer wall structure and a construction method thereof. More specifically, the present invention relates to an outer wall structure that simplifies the construction of a joint part and a construction method thereof.

  Conventionally, in the outer wall structure K ′ to which the panel conversion method is applied, as shown in FIG. 15, a so-called dry joint a is used at the joint from the viewpoint of simplifying the construction.

  The construction of the dry joint a is performed after the assembly of the outer wall panels 10 ′ and 20 ′ is completed, using the scaffolding provided at the aerial work vehicle and joints, and the joints provided on the frames such as the columns C 1 ′ and C 2 ′. This is done by clipping a dry gasket c to the mounting member b.

  However, in the conventional dry joint a, since the joint portion is constructed after the assembly of the outer wall panels 10 'and 20' is completed, there is a problem that the construction period is prolonged.

  In addition, the construction work is carried out using the platform work platform and the scaffolding provided at the joints, which leads to an increase in construction costs and the construction of the exterior must be done after the joints are completed. There is also a problem that there are also restrictions.

  Furthermore, since the dimensions of the dry gasket c are constant, the assembly tolerance of the outer wall panels 10 ′ and 20 ′ is set strictly as ± 2 mm with respect to the design value, so the assembly period of the outer wall panels 10 ′ and 20 ′ There is also a problem that this has led to an increase in assembly costs and an increase in assembly costs.

  In addition, since the dry gasket c is easily deformed, there is also a problem that the appearance of the joint portion is damaged if the dry gasket c is mishandled during installation.

  The present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide an outer wall structure that completes construction of a joint portion at the same time that an outer wall panel is assembled and a method for constructing the outer wall structure.

The outer wall structure of the present invention includes a first outer wall panel, a second outer wall panel adjacent to the first outer wall panel, a first column to which the first outer wall panel is assembled, and a water stop portion. The portion includes a tubular gasket, and a joint portion of the first outer wall panel and the second outer wall panel in cooperation with the inner corner portions of the tubular gasket and the first outer wall panel and the second outer wall panel. Including a primary water stop portion for stopping water, and the tubular gasket is disposed vertically at a substantially center of the first pillar, and the tubular gasket is disposed on an inner side end of the outer wall surface material of the first outer wall panel. Rutotomoni parts are contact with the pressing state, the inner end of the outer wall surface material of the second outer wall panel by Rukoto is contact with a pressing state, characterized by forming a water stopping of the joint portion.

  In the outer wall structure of the present invention, the water stop portion further includes a secondary water stop portion, and the secondary water stop portion includes a secondary water stop material disposed on the first pillar, and the secondary water stop material. It is preferable to have a water stop material on the side of the second outer wall panel disposed on the second outer wall panel that forms a water stop in cooperation with.

  Moreover, in the outer wall structure of this invention, it is preferable that an outer wall panel has an L-shaped gasket in the side end inner corner of an outer wall surface material.

The construction method of the outer wall structure of the present invention includes a first outer wall panel, a second outer wall panel adjacent to the first outer wall panel, a first column to which the first outer wall panel is assembled, and a water stop portion. The water stop portion includes a tube-like gasket, and the tube-like gasket and the inner corner portions of the first outer wall panel and the second outer wall panel cooperate with each other. Including a primary water stop portion for stopping the joint portion between the outer wall panel and the second outer wall panel, and a procedure for vertically arranging a tubular gasket at substantially the center of the first pillar ; and A procedure for assembling the first outer wall panel to the first pillar in a state where the inner side end of the outer wall material of the first outer wall panel is in a pressed state, and the tube-shaped gasket on the second outer wall panel. Inner side edge of outer wall material In a state of being contact with a pressing state, characterized in that it comprises a procedure of assembling the same second outer wall panel to the first pillar.

  In the construction method of the outer wall structure of the present invention, a procedure for disposing a secondary water stop material on the first pillar and a second outer wall panel side water stop material that forms a water stop in cooperation with the secondary water stop material. It is preferable to form a secondary water stop part by the procedure which arrange | positions to a 2nd outer wall panel.

  Moreover, in the construction method of the outer wall structure of the present invention, it is preferable that a procedure for arranging an L-shaped gasket is added to the inner corner of the outer wall surface of the outer wall panel.

  According to the present invention, since the water stop of the joint portion is completed simultaneously with the erection of the outer wall panel, an excellent effect of shortening the construction period and reducing the construction cost can be 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.

Embodiment 1
The principal part of the outer wall structure K which concerns on Embodiment 1 of this invention is shown in FIG. 1 and FIG.

  As shown in FIGS. 1 and 2, the outer wall structure K is integrated with the first pillar C1 as a housing, the first outer wall panel 10 assembled to the first pillar C1, and the first pillar C1, for example, by bolting. The second outer wall panel 20 having the second pillar C2, the side end portions of the outer wall panels 10 and 20, and the pillars C1. The water stop part 30 which makes water stop with C2 shall be provided as a main component. In the illustrated example, the first outer wall panel 10 is arranged on the left side in the figure, and the second outer wall panel 20 is arranged on the right side in the figure, but the first outer wall panel 10 is arranged on the right side in the figure, Two outer wall panels 20 may be arranged on the left side in the figure.

  Specifically, the water stop portion 30 includes a primary water stop portion 40 that stops the gap between the first outer wall panel 10 and the second outer wall panel 20, that is, the joint portion, and an inner surface of the second outer wall panel 20 side end portion. And a secondary water stop portion 50 that forms a water stop between the first pillar C1 and the outer surface of the first column C1 (outer wall panel mounting surface).

  The primary water blocking portion 40 is disposed along a tube-shaped gasket 41 disposed vertically at the substantially center of the outer surface of the first column C1 and along the inner corner of the first outer wall panel 10 on the outer wall surface side. The first L-shaped gasket 42 and the second L-shaped gasket 43 disposed along the inner corner of the outer wall surface material side end of the second outer wall panel 20 are included.

  The tube-shaped gasket 41 is formed by forming a synthetic resin having elasticity, for example, silicon rubber in a tunnel shape having a flat plate base portion, that is, a top portion in an arc shape, and the flat plate base portion is appropriately formed by means such as double-sided tape. It is attached to the outer surface of the first pillar C1. When the first outer wall panel 10 and the second outer wall panel 20 are assembled, the arc-shaped portion is elastically deformed by being pressed by the first L-shaped gasket 42 and the second L-shaped gasket 43. It is adjusted to stop the water.

  FIG. 3 is a cross-sectional view showing an example of a tubular gasket when it is attached with a double-sided tape. In the example shown in FIG. 3A, the width of the tubular gasket 41 is, for example, 18 mm, the height is 19 mm, the thickness is about 3 mm at the base portion 41a, and the tunnel-shaped top portion 41b is from 2 mm to 2 mm. It is about 3 mm.

  FIG. 4 is a cross-sectional view showing an example of a tubular gasket 41A that is attached by screwing. In the example shown in FIG. 4, screw mounting portions 41c are integrally formed on both sides of the base portion 41a.

  FIG. 5 is a cross-sectional view showing an example of a tubular gasket 41B that is attached by clip fastening. In the example shown in FIG. 5, a stepped hole 41d through which the clip p is inserted is formed through the center of the base portion 41a.

  FIG. 6 is a sectional view showing an example of the first L-shaped gasket 42. The first L-shaped gasket 42 is made of a synthetic resin having elasticity, such as silicon rubber. As shown in FIG. 6, the outer surface 42a of the portion along the side end surface of the outer wall surface material of the first outer wall panel 10 is It is formed in a tapered shape. The second L-shaped gasket 43 is the same as the first L-shaped gasket 42 except that it is symmetrical with the first L-shaped gasket 42.

  The tubular gasket 41 having such a configuration differs in the manner of deformation depending on how the second outer wall panel 20 is assembled.

  For example, as shown in FIG. 7, the deformation of the tubular gasket 41 when the second outer wall panel 20 is assembled while being moved in the vertical direction from the outdoor side is schematically shown in FIG. In FIG. 7, the sizes of the pillars C1 and C2 are exaggerated for convenience of drawing.

  Moreover, as shown in FIG. 9, the deformation | transformation of the tubular gasket 41 at the time of assembling | attaching, moving the 2nd outer wall panel 20 from the outdoor side to the diagonally horizontal direction is typically shown in FIG. In FIG. 9, the sizes of the pillars C1 and C2 are exaggerated for convenience of drawing.

  Thus, since the top part 41b of the tubular gasket 41 is formed in an arc shape, the second outer wall panel 20 can be assembled from the vertical direction and can also be assembled from the oblique lateral direction. Becomes larger. In addition, the deformed portion of the tubular gasket 41 is generally hidden behind the second outer wall panel 20, and portions of the first and second L-shaped gaskets 42 and 43 along the end surfaces of the outer wall panels 10 and 20 are tapered. Therefore, there is no possibility that the appearance of the joint portion will deteriorate. Furthermore, since the joint of the second outer wall panel 20 can be stopped as long as it comes into contact with the tubular gasket 41, the installation tolerance of the second outer wall panel 20 can be made larger than that of the conventional one. For example, it can be ± 4 mm with respect to the design value.

  The secondary water stop portion 50 is a square secondary stop made of a water-repellent synthetic resin, for example, a water-repellent urethane foam, which is arranged in parallel with the tubular gasket 41 on the second outer wall panel 20 side of the outer surface of the first column C1. Including a water material 51 and a second outer wall panel side water stop material 52 disposed inside the side end of the second outer wall panel 20 and stopping water in cooperation with the secondary water stop material 51; Is done. Here, the 2nd outer wall panel side water stop material 52 is made into the edge part of the moisture-permeable waterproof sheet 21 specifically, fixed with the double-sided tape.

  Next, manufacture of each part of the outer wall structure K having such a configuration will be described.

  Procedure 1: A tubular gasket 41 and a secondary water blocking material 51 are attached to substantially the center of the outer surface of the first column C1.

  Procedure 2: The first outer wall panel 10 is attached to the outer surface of the first pillar C1.

  Procedure 3: A first L-shaped gasket 42 is attached to the inside of the end of the outer wall surface material of the first outer wall panel 10. This attachment is performed by compressing the tubular gasket 41. Thereby, the water stop of the 1st outer wall panel 10 side edge part is completed.

  Procedure 4: The second pillar C2 is attached to the second outer wall panel 20.

  Procedure 5: A second L-shaped gasket 43 is attached to the inside of the end of the outer wall surface material of the second outer wall panel 20.

  Note that steps 1 to 3 and steps 4 and 5 may be performed in parallel.

  Next, the construction of the outer wall structure K having such a configuration will be described.

  Step 11: The first outer wall panel 10 is installed on the basis of the first pillar C1 to which the first outer wall panel 10 is attached.

  Procedure 12: The second outer wall panel 20 is built in such a manner that the second outer wall panel 20 is pulled in from the outdoor side to the indoor side (see FIGS. 1 and 11).

  Procedure 13: Install the leg of the second pillar C2 on the foundation and bolt the side face to the first pillar C1 (see FIGS. 2 and 12). Thereby, the water stop of a joint part and the water stop between the 2nd outer wall panel 20 and the pillar C1 are completed.

  Thus, according to this Embodiment 1, the water stop of the joint part and the water stop between the pillar C1 and the outer wall panel 20 are completed simultaneously with the completion of the construction of the outer wall panel 20. For this reason, while a construction period is shortened remarkably, construction cost is reduced.

  Further, since the exterior work can be performed immediately after the installation of the outer wall panels 10 and 20 is completed, the entire construction period is shortened. In addition, as described above, the second outer wall panel 20 can stop water if it comes into contact with the tubular gasket 41 and compresses it, so that the installation tolerance can be made larger than before. Thereby, the installation cost can be further reduced.

  Further, since the L-shaped gaskets 42 and 43 having a tapered shape are provided, the appearance of the joint portion is not impaired.

Embodiment 2
The principal part of the outer wall structure which concerns on Embodiment 2 of this invention is shown in FIG.

  In the second embodiment, as shown in FIG. 13, the thickness of the base portion of the tubular gasket 41 in the first embodiment is increased, for example, as shown in FIG. The position of engagement with the inner corners of the outer wall surface material side end of the panel 20 is adjusted, thereby eliminating the need for the L-shaped gaskets 42 and 43 and simplifying the configuration.

  Since the remaining configuration of the second embodiment is substantially the same as that of the first embodiment, detailed description thereof is omitted. In the figure, the symbol D indicates a heat insulating material.

  Thus, in Embodiment 2, since the L-shaped gasket is unnecessary, the manufacturing cost for manufacturing the outer wall panel is reduced and the manufacturing period is also shortened.

  As mentioned above, although this invention has been demonstrated based on embodiment, this invention is not limited only to this embodiment, A various change is possible.

  For example, the tubular gasket 41 may be separated into a base portion 45 and a tunnel-like portion 46 as shown in FIG. 14 so as to improve the elasticity of the tunnel-like portion 46.

  Further, it may be a frame instead of the second pillar C2.

  The present invention can be applied to the outer wall of a building such as a house or a store.

It is a principal part horizontal sectional view of the outer wall structure which concerns on Embodiment 1 of this invention, Comprising: The state before completion of construction of a 2nd outer wall panel is shown. The state after completion of the installation is shown. It is sectional drawing of an example of a tubular gasket. It is sectional drawing of the other example of a tubular gasket. It is sectional drawing of the further another example of a tubular gasket. It is sectional drawing of an example of a 1st L-shaped gasket. It is explanatory drawing of erection of a 2nd outer wall panel, Comprising: The state erected while moving vertically from the outdoor side is shown. It is a schematic diagram of the deformation | transformation state of the tubular gasket in the case of the same mounting. It is explanatory drawing of erection of the 2nd outer wall panel, Comprising: The state erected while moving diagonally from the outdoor side is shown. It is a schematic diagram of the deformation | transformation state of the tubular gasket in the case of the same mounting. It is explanatory drawing of the construction procedure of the outer wall structure which concerns on Embodiment 1 of this invention, Comprising: The state which has built in the 2nd outer wall panel is shown. It is explanatory drawing of the construction procedure of the outer wall structure which concerns on Embodiment 1 of this invention, Comprising: The state which built in the 2nd outer wall panel is shown. It is the FIG. 1 equivalent view of the outer wall structure of Embodiment 2 of this invention. It is sectional drawing of the further another example of a tubular gasket. FIG. 3 is a view corresponding to FIG. 2 showing a conventional outer wall structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 1st outer wall panel 20 2nd outer wall panel 21 Moisture-permeable waterproof sheet 30 Water stop part 40 Primary water stop part 41 Tube-shaped gasket 42 1st L-shaped gasket 43 2nd L-shaped gasket 50 Secondary water stop part 51 Secondary Water stop member 52 Water stop material on the second outer wall panel side K Outer wall structure C1 First pillar C2 Second pillar

Claims (6)

A first outer wall panel; a second outer wall panel adjacent to the first outer wall panel; a first pillar to which the first outer wall panel is assembled; and a water stop portion.
The water stop portion includes a tube-shaped gasket, and the tube-shaped gasket and the first outer wall panel and the second outer wall panel in cooperation with the inner corners of the first outer wall panel and the second outer wall panel . Including a primary water stop to stop the joint,
The tubular gasket is disposed vertically in the approximate center of the first pillar,
The tubular gasket, said inner side end portion of the outer wall surface material of the first outer side wall panels are in contact with the pressing state Rutotomoni, inner side end portion of the outer wall surface material of the second outer wall panel abutting a pressing state to the outer wall structure, characterized in that the Rukoto, forming a water stopping of the joint portion. The water stop part further includes a secondary water stop part,
The secondary water stop portion includes a secondary water stop member disposed on the first pillar, and a second outer wall disposed on a second outer wall panel that forms a water stop in cooperation with the secondary water stop member. The outer wall structure according to claim 1, further comprising a panel-side water blocking material. The outer wall structure according to claim 1, wherein the outer wall panel has an L-shaped gasket at an inner side corner of the outer wall surface material. A construction method of an outer wall structure comprising: a first outer wall panel; a second outer wall panel adjacent to the first outer wall panel; a first pillar to which the first outer wall panel is assembled; and a water stop portion.
The water stop portion includes a tube-shaped gasket, and the tube-shaped gasket and the first outer wall panel and the second outer wall panel in cooperation with the inner corners of the first outer wall panel and the second outer wall panel . Including a primary water stop to stop the joint,
A procedure in which a tube-shaped gasket is disposed vertically in the approximate center of the first pillar;
A procedure for assembling the first outer wall panel to the first pillar in a state where the inner side end of the outer wall surface material of the first outer wall panel is brought into contact with the tubular gasket in a pressed state;
And a step of assembling the second outer wall panel to the first column in a state where the inner side end portion of the outer wall surface material of the second outer wall panel is brought into contact with the tubular gasket in a pressed state. To build the outer wall structure. A procedure for disposing a secondary water-stopping material on the first pillar, and a procedure for disposing a water-stopping material on the second outer wall panel side that forms a water stop in cooperation with the secondary water-stopping material, The method for constructing the outer wall structure according to claim 4, wherein a secondary water stop is formed. The method for constructing an outer wall structure according to claim 4, further comprising a step of arranging an L-shaped gasket at an inner side corner of the outer wall surface material of the outer wall panel.

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