JP2017190576A - Wall structure and construction method of wall structure - Google Patents

Abstract

The present invention provides a wall structure and a method for constructing a wall structure that is excellent in heat insulation, noncombustibility, and fire resistance, and can improve workability when constructing the wall structure. [Solution] A plurality of wall panels 1 each including a foamed resin heat insulating material and a noncombustible material are arranged in an upright state between pillars 4 that constitute a warehouse 7, and the wall surfaces are arranged next to each other. The panels 1 are brought into direct contact with each other or are connected without gaps by intervening an intervening material S, and the wall panel 1 and the pillar part 4 which are arranged adjacent to the pillar part 4 are connected directly. By spraying foamed resin from the outdoor side of the column 4 in contact with each other or in a state where they are connected without a gap with the inclusion S interposed, the outdoor surface of the column 4 and the adjacent column 4 are connected. A continuous heat insulating material 2 made of a foamed resin is formed on a part of the outdoor surface of a wall panel 1 which is arranged as a wall panel. [Selection diagram] Figure 1

Description

  The present invention relates to a wall structure and a method for constructing a wall structure, and more particularly, a wall structure and a wall structure that are excellent in heat resistance, incombustibility and fire resistance, and can improve workability when constructing a wall structure. Is related to the construction method.

  In a refrigerated warehouse, the indoor temperature is significantly lower than the outside air. For this reason, if the heat resistance of the wall surface is low, more energy is required to keep the interior at a low temperature, and the wall surface may condense and cause contamination such as icing and mold. Therefore, when building a warehouse, high heat resistance is required for the wall surface. In addition, it is required to install fire extinguishing equipment in a refrigerated warehouse as a fire prevention measure. However, if a fire extinguishing water discharge facility is provided, the water used for water discharge may freeze, so the wall structure is made nonflammable. It may be used as a substitute for fire extinguishing equipment.

  There are various panels as building materials for walls. For example, a panel in which an intermediate portion formed of inorganic foam is sandwiched between an upper layer portion and a lower layer portion formed of rock wool has been proposed (patent) Reference 1). There is a specification of a wall structure in which a plurality of these panels are arranged side by side from the floor to the upper floor, and the gap between the panel and the beam side surface is filled with a refractory material or urethane foam resin. Conventionally, in order to construct a wall structure of a refrigerated warehouse, for example, a plurality of PC (precast concrete) boards manufactured in a factory are arranged side by side. Next, when the wall to be constructed is a partition wall, there is a specification such that a hard fireproof covering material, a gypsum board, and a steel plate are sequentially installed and finished after spraying urethane foam resin or the like on the PC board surface. On the other hand, when the wall to be constructed is an outer wall, there is a specification such that the space between the PC board and the outdoor side surface plate is filled with a heat insulating material formed by sprayed urethane foam resin or the like.

  However, the PC board has a considerable weight, and it is necessary to perform work while using a crane or the like in order to install it at a predetermined position on the site. In addition, it takes a considerable amount of time to spray foamed urethane resin or the like over a wide area. Therefore, building a wall structure is a heavy labor and requires a lot of man-hours, so there is room for improving workability.

JP-A-9-144158

  An object of the present invention is to provide a wall structure and a method for constructing a wall structure that are excellent in heat resistance and incombustibility / fire resistance and that can improve the workability when constructing a wall structure.

  In order to achieve the above object, the wall structure of the present invention has a wall structure having a plurality of wall panels provided with a foamed resin heat insulating material and a non-combustible material, and a heat insulating material covering a part of the surface of the wall panel. In this case, a plurality of the wall panels are arranged side by side between the pillars constituting the warehouse, and the wall panels arranged adjacent to each other are in direct contact with each other, or inclusions are interposed. The wall panel arranged adjacent to the pillar portion and the pillar portion are in direct contact with each other, or there is an intervening intervening connection. The outdoor side surface of the pillar part and a part of the outdoor side surface of the wall panel arranged adjacent to the pillar part are continuously covered with the heat insulating material. And

  The wall surface structure construction method of the present invention includes a plurality of wall panels provided with a foam resin heat insulating material and a non-combustible material, arranged side by side in a standing state between pillars constituting a warehouse, and adjacent to each other. The wall panel and the column part which are arranged in contact with each other directly by making the wall panel arranged in direct contact with each other or with inclusions interposed therebetween and adjacent to the column part In contact with each other or with inclusions interposed therebetween, and then the foamed resin is sprayed from the outdoor side of the column part, and then the outdoor side surface of the column part and the column Forming a heat insulating material made of the foamed resin continuous with a part of the outdoor side surface of the wall surface panel arranged adjacent to the portion.

  According to the present invention, between the pillar portions constituting the warehouse, a plurality of the wall panels arranged adjacent to each other in a standing state are brought into direct contact with each other, or inclusions are interposed therebetween. Since it is in a state of being connected without gaps, heat resistance can be ensured by the foamed resin heat insulating material constituting the wall panel, and non-combustible and fire resistance can be ensured by the non-combustible material. And when heat-insulating property is improved more, it is only necessary to increase the thickness dimension of the foamed resin heat-insulating material having a low density, so that an increase in the weight of the wall surface panel can be suppressed. Accordingly, the work for handling the wall panel is lightened.

  Moreover, in the outdoor side surface of the column part, in addition to the outdoor side surface of the column part, from the foamed resin continuous with a part of the outdoor side surface of the wall panel arranged adjacent to the column part Forming a heat insulating material. Along with this, it is possible to ensure the necessary heat resistance for the entire range of the wall structure on the outdoor side. Moreover, the heat insulating material made of foamed resin is simply provided by spraying the foamed resin on a part of the outdoor side surface of the wall surface panel, which is disposed adjacent to the column portion. It's okay. Therefore, as compared with the conventional technique in which the foamed resin is sprayed over the entire range of the outdoor surface of the wall panel, the range in which the foamed resin is sprayed becomes extremely small, and the man-hour for this spraying work can be greatly reduced. Therefore, the workability at the time of constructing the wall structure can be improved.

It is explanatory drawing which illustrates the wall structure of this invention by a cross-sectional view. It is explanatory drawing which illustrates a wall structure by the arrow view from the outdoor side of FIG. It is explanatory drawing which illustrates the wall structure of FIG. 1 by a longitudinal cross-sectional view. It is explanatory drawing which illustrates another embodiment of the wall structure of this invention by a cross-sectional view.

  Hereinafter, the wall structure and the construction method of the wall structure of the present invention will be described based on the embodiments shown in the drawings. The present invention is applied when constructing a structure in which the temperature difference between indoor and outdoor (outside air) is larger than that of a general structure, and is mainly applied when constructing a refrigerated warehouse or the like. . The refrigerated warehouse is a warehouse that keeps the interior at 10 ° C. or lower, and includes a frozen warehouse.

  As illustrated in FIGS. 1 to 3, the wall structure of the present invention includes a plurality of wall panels 1 and a heat insulating material 2 that covers a part of the surface of the wall panel 1. The wall surface panel 1 is provided with a layer of a foamed resin heat insulating material and a layer of a non-combustible material, and a necessary heat insulating property is secured by the foamed resin heat insulating material. Moreover, this wall surface panel 1 has ensured incombustibility and fire resistance with the incombustible material.

  The foamed resin heat insulating material is formed of, for example, a foamed resin generally used as a heat insulating material for building materials, and a urethane foam resin, a foamed plastic heat insulating material, or the like can be used. The thermal conductivity of the foamed resin heat insulating material is about 0.024 W / (m · k) to 0.034 W / (m · k).

  The noncombustible material is formed of, for example, a material generally used as a noncombustible material for building materials, and rock wool, gypsum board, or the like can be used. The thickness of the incombustible material is, for example, 10 mm or more and 30 mm or less. This is because if the thickness is less than 10 mm, it is difficult to ensure sufficient incombustibility and fire resistance, and if it exceeds 30 mm, the weight of the wall surface panel 1 becomes excessive, causing deterioration in workability.

The wall panel 1 has a width of about 800 mm to 1200 mm, a height of 4000 mm to 7000 mm, and a thickness of about 110 mm to 330 mm. The weight of one wall panel 1 is about 40 kg to 165 kg, which is lighter than a conventional PC board. For example, when the specific gravity of concrete is 2300 kg / m ^{3 and} the weight of a conventional PC hood is calculated, the weight is about 800 kg when the width is 800 mm, the height is 4000 mm, and the thickness is 110 mm. Therefore, this wall panel 1 is significantly lighter than a conventional PC board.

  In a plan view, the plurality of wall panels 1 are arranged side by side between the fireproof structure pillars 4 constituting the warehouse 7, and the wall panels 1 arranged adjacent to each other are in direct contact with each other. And become connected with no gaps. Or the wall surface panels 1 arrange | positioned adjacently will be in the state connected without the clearance gap between the inclusions S, such as a sealing material and a refractory material. As the intervening material S, rock wool, mortar, or the like can be used.

  In the longitudinal section, the wall panel 1 is joined to the floor 5 and the beam 6 on the upper floor, and a fireproof line is constructed by sandwiching the upper and lower sides of the wall panel 1 with fireproof inclusions S. Can be formed. When the wall surface panel 1 is used as an interior material, necessary sections are formed using the beam portions 6 for each floor.

  Further, the wall structure of the present invention is in a state where the wall surface panel 1 arranged adjacent to the pillar portion 4 and the pillar portion 4 are in direct contact and connected with no gap. Or the wall surface panel 1 and the pillar part 4 are in the state where the interposition material S intervenes and is connected without a gap.

  The heat insulating material 2 is formed by spraying a foamed resin material or the like. The heat insulating material 2 continuously covers the entire range of the outdoor side surface of the column part 4 and a part of the outdoor side surface of the wall surface panel 1 arranged adjacent to the column part 4. In the drawing, the range of the heat insulating material 2 is indicated by oblique lines inclined to the left. As the foamed resin sprayed to form the heat insulating material 2, the same resin as the above-described foamed resin heat insulating material can be used.

  In order to ensure heat resistance without excess or deficiency, the thickness of the heat insulating material 2 may be set to about 100 mm or more and 250 mm or less, for example. Alternatively, the thickness of the heat insulating material 2 may be approximately the same as the thickness of the wall surface panel 1 (for example, 80% to 120% of the thickness of the wall surface panel 1).

  In order to construct this wall structure, a plurality of wall panels 1 are arranged side by side in a standing state at predetermined positions on the floor 5 between the pillars 4. Adjacent wall panel 1 and wall panel 1 are closely connected with substantially no gap. Moreover, the wall surface panel 1 and the pillar part 4 which are arrange | positioned adjacent to the pillar part 4 are closely connected substantially without gap.

  The outdoor side surface of the column part 4 needs to be continuously heat-insulated in cooperation with the adjacent wall panel 1. Therefore, after a plurality of wall panels 1 are arranged between the pillars 4 to construct a wall structure, the foamed resin 2 is sprayed from the outdoor side of the pillars 4. By this spraying operation, the heat insulating material 2 made of foamed resin is formed which is continuous with the entire range of the outdoor side surface of the column part 4 and a part of the outdoor side surface of the wall surface panel 1 arranged adjacent to the column part 4. To do. Next, the outermost wall side of this wall structure is covered with the outer wall 3a. In this embodiment, since an air layer is formed between the outer wall 3a and the wall surface panel 1, further improvement in heat resistance can be expected.

  As illustrated in FIG. 3, it is necessary to provide heat resistance to the outdoor side surface of the beam portion 6 constituting the warehouse 7. Therefore, after a plurality of wall panels 1 are arranged between the pillars 4 to construct a wall structure, the foamed resin 2 is sprayed from the outdoor side. By this spraying operation, the heat insulating material 2 made of foamed resin is formed continuously over the entire range of the outdoor surface of the beam portion 6 and a part of the outdoor surface of the wall surface panel 1 arranged adjacent to the beam portion 6. Good. When the outer wall 3a has a fire-resistant structure, the respective beam portions 6 and the outer wall 3a are connected by a fire-resistant connecting material 3c to form a fire-proof section between the respective floors, but the wall panel 1 is handled as the outer wall 3a. In such a case, a fire prevention section between the floors is unnecessary. More specifically, when the outer wall 3a is fire-resistant for 1 hour, it is necessary to provide the fire-resistant connecting member 3c over the entire length of the fire-proof section. On the other hand, when the outer wall 3a is other than that, the connecting member 3c only needs to be able to fix and hold the outer wall 3a.

  In this embodiment, the floor portion 5 has an overhang portion 5 a that projects outward from the beam portion 6. A lower end portion of the wall surface panel 1 is placed on the floor portion 5 along a concrete baseboard 5 b fixed to the floor portion 5. The lower end portion of the wall surface panel 1 is fixed to the floor portion 5 through a penetrating bolt and an L-shaped angle. The upper end portion of the wall surface panel 1 is fixed to the beam portion 6 via an L-shaped angle covered with a penetrating bolt and an inclusion S. One end of the connecting member 3c is connected to the beam portion 6 of each floor, and the other end of the connecting member 3c is connected to the outer wall 3a.

  If the structure which mounts the wall surface panel 1 in the overhang | projection part 5a like this embodiment is employ | adopted, the water which falls along the wall surface panel 1 will be prevented from a downward movement by the overhang | projection part 5a. Therefore, it is advantageous to prevent a problem that water enters the lower floor along the wall surface panel 1.

  As described above, since the wall surface panel 1 of the present invention has the necessary heat resistance, dew condensation hardly occurs on the surface of the wall surface panel 1. Therefore, it is effective for preventing the occurrence of dirt on the surface of the wall surface panel 1.

  Further, the wall panel 1 uses a non-combustible material, and the thickness dimension is increased only for the heat insulating material made of foamed resin having a low density. Therefore, an increase in the weight of the wall surface panel 1 can be suppressed. In connection with this, the operation | work which moves the wall surface panel 1, the operation | work installed in a predetermined position, etc. can be lightened.

  Furthermore, in addition to the entire range of the outdoor side surface of the column part 4, the heat insulating material 2 continuous to a part of the outdoor side surface of the wall surface panel 1 arranged adjacent to the column part 4 is formed. That is, the heat insulating material 2 made of foamed resin may be formed by spraying foamed resin on a part of the outdoor side surface of the wall surface panel 1 arranged adjacent to the column part 4. . Therefore, as compared with the conventional technology in which the foamed resin is sprayed over the entire range of the outdoor surface of the wall surface panel 1, the range in which the foamed resin is sprayed becomes extremely small, and the man-hour for this spraying work can be greatly reduced. Thus, according to the present invention, since there are various merits described above, the workability when building the wall structure is improved.

  If the internal temperature of the warehouse 7 is as low as about minus 25 °, the wall structure illustrated in FIG. 1 may be used. However, if the internal temperature is lower than that (for example, about minus 60 °), further heat insulation is provided. Sex is required. Therefore, as illustrated in FIG. 4, it is preferable to add a heat insulating material 2 and an inner wall material 3 b on the indoor side with respect to the wall structure of FIG. 1.

  If this wall structure is explained in full detail, foaming resin will be sprayed to the whole range of the indoor side surface with respect to the wall structure illustrated in FIG. Thereby, the heat insulation material 2 continuous in the range which sprayed foaming resin is formed, and the inner peripheral side of this formed heat insulation material 2 is then covered with the inner wall material 3b. The heat insulating material 2 may have a thickness of, for example, 100 mm or more and 250 mm or less, like the heat insulating material 2 on the outdoor side. Alternatively, the thickness may be approximately the same as the thickness of the wall panel 1 (for example, 80% or more and 120% or less of the thickness of the wall panel 1).

  Even if the foamed resin is sprayed to form the heat insulating material 2 as illustrated in FIGS. 1 to 4, it is not necessary to spray the foamed resin so as to cover the entire range of the wall surface as in the prior art. Therefore, the spraying work can be completed in a short time compared to the conventional case, and light labor can be achieved.

1 Wall panel 2 Thermal insulation material (foam resin)
3a outer wall 3b inner wall material 3c connecting material 4 pillar part 5 floor part 5a overhang part 5b concrete baseboard 6 beam part 7 warehouse S inclusion

Claims (6)

A wall structure having a plurality of wall panels provided with a foam resin heat insulating material and a non-combustible material, and a heat insulating material covering a part of the surface of the wall panel,
A plurality of the wall panels are arranged side by side between the pillars constituting the warehouse, and the wall panels arranged adjacent to each other are in direct contact with each other, or an intervening material is interposed between them. In a state where the wall panel arranged adjacent to the pillar portion and the pillar portion are in direct contact with each other, or with inclusions interposed therebetween, and are connected without gaps. And a wall structure characterized in that a part of an outdoor side surface of the pillar part and a part of an outdoor side surface of the wall panel arranged adjacent to the pillar part are continuously covered with the heat insulating material. .   The wall structure according to claim 1, wherein the heat insulating material has a thickness of 100 mm to 250 mm.   The wall structure according to claim 1 or 2, wherein a thickness of the heat insulating material is not less than 80% and not more than 120% of a thickness of the wall panel.   A plurality of wall panels provided with a foamed resin heat insulating material and a non-combustible material are arranged side by side between the pillars constituting the warehouse, and the wall panels arranged adjacent to each other are directly contacted with each other. The wall panel arranged adjacent to the pillar portion and the pillar portion are brought into direct contact with each other or in contact with each other or with inclusions interposed therebetween, or interposed. By interposing an object and in a state of being connected without gaps, then by blowing foam resin from the outdoor side of the pillar part, the outdoor side surface of the pillar part and the pillar part are arranged adjacent to each other. A method for constructing a wall structure, comprising forming a heat insulating material made of the foamed resin continuous with a part of a surface on the outdoor side of a wall panel.   The method for constructing a wall structure according to claim 4, wherein the heat insulating material has a thickness of 100 mm to 250 mm.   The method for constructing a wall structure according to claim 4 or 5, wherein a thickness of the heat insulating material is 80% or more and 120% or less of a thickness of the wall panel.

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