JP2011220024A - Mounting structure of face material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure for a face material that can increase wall strength with simple construction and form a bearing wall having high earthquake-resistance.SOLUTION: The invention relates to a mounting structure for a face material 3 formed of two metallic sheaths 5 filled with core material 4 therebetween. The mounting structure for the face material 3 is realized by arranging the face material 3 having a folded part 11 at an end, which is formed by folding back a metallic sheath 5, i a wall substrate 1, and driving the fixing implement 2 into the wall substrate 1 such that the fixing implement 2 penetrates the folded part 11 from the surface of the face material 3. Also, the face material 3 and another face material 3 having a folded part 11 at an end, which is formed by folding back a metallic sheath 5, are juxtaposed on the wall substrate 1 with the end having the folded part 11 of the face material 3 and the end having the folded part 11 of the other face material 3 butting one another, and the fixing implement 2 is driven into the wall substrate 1 so that the fixing implement 2 penetrates the folded part 11 of the other face material 3 from the surface of the other face material 3. Since the fixing implement 2 is driven in the wall substrate 1 through the folded part 11, the strength of the bearing wall, particularly strength against shearing force, can be increased.

Description

  The present invention relates to a mounting structure for a face material used for a load-bearing wall having high performance such as earthquake resistance.

  Conventionally, it is known to form a load-bearing wall having high earthquake resistance by arranging a plurality of face members (wall panels) side by side on the surface of a wall base such as a building frame (see Patent Document 1). ).

  FIG. 8A is a cross-sectional view of a conventional load-bearing wall formed using the face material 3. Two adjacent face materials 3 and 3 have one end and the other end abutted in front of the wall base 1, and a fixing tool 2 such as a nail or a screw is driven in from the respective surfaces. Attached. At this time, the fixture 2 is driven into the wall base 1 through the face material 3.

  As the face material 3, a face material (so-called metal sandwich panel) in which a core material is filled between two metal shells is known.

Japanese Patent Laid-Open No. 11-62060

  The conventional load-bearing wall in which the fixture 2 is driven through the face material 3 as described above may not have sufficient strength. In particular, there is a case in which sufficient strength cannot be obtained with respect to a force that acts on the wall in the opposite direction and tries to shift, that is, a so-called shearing force.

  On the other hand, as in Patent Document 1, it has been attempted to form a bearing wall using a plate material as an auxiliary material. For example, a vertically long rectangular plate material is arranged so as to straddle between the surfaces of the face members 3 and 3 arranged side by side, and the fixture 2 is passed from the surface of the plate material to the wall substrate 1 through the face material 3. It is a load-bearing wall that is formed by driving. In this structure, the plate material functions as a reinforcing plate, thereby improving the performance of the load bearing wall.

  However, when a bearing wall is formed using a plate material, there are many parts for forming the bearing wall. Moreover, when attaching, the fixing | fixing tool 2 must be struck so that it may not move by temporarily fixing a board | plate material, and construction will take time and an effort. Furthermore, when a plate material is used, the plate material is disposed so as to protrude from the surface of the face material 3, and the design is not good.

  The present invention has been made in view of the above points, and has an object to provide a mounting structure for a face member 3 capable of improving strength and forming a highly resistant wall with simple construction. To do.

  The attachment structure of the face material according to the present invention is an attachment structure of the face material 3 in which the core material 4 is filled between the two metal skins 5, and the folded portion 11 formed by folding the metal skin 5 back. A face material 3 having an end portion is disposed on the wall base 1, and the fixture 2 is driven into the wall base 1 through the folded portion 11 from the surface of the face material 3.

  The mounting structure of the face material according to the present invention includes the face material 3 and another face material 3 having a folded portion 11 formed by folding the metal shell 5 at the end, and the folded portion of the face material 3. The end portion having 11 and the end portion having the folded portion 11 of the other face material 3 are abutted to each other on the wall base 1 and penetrates the folded portion 11 of the other face material 3 from the surface of the other face material 3. Thus, the fixing tool 2 is driven into the wall base 1.

  In the mounting structure of the face material having the above-described structure, it is preferable that the end portion is provided with a recess 6 having an end face as an opening, and the filling material 10 is provided in the recess 6.

  According to the present invention, since the fixture is driven into the wall base through the folded portion, it is possible to improve the strength of the load bearing wall, particularly the strength against the shearing force. Moreover, it is not necessary to use auxiliary materials, such as a board | plate material, and the effort of construction can be saved. Therefore, it is possible to easily form a durable wall having excellent earthquake resistance.

It is principal part sectional drawing which shows an example of embodiment of the attachment structure of a face material. It is an exploded perspective view same as the above. It is sectional drawing which shows an example of embodiment of the attachment structure of a face material. It is sectional drawing which shows an example of embodiment of the attachment structure of a face material. It is principal part sectional drawing which shows another example of embodiment of the attachment structure of a face material. It is principal part sectional drawing which shows another example of embodiment of the attachment structure of a face material. It is a front view which shows the test body of the bearing wall used for the test. (A)-(c) is sectional drawing which shows an example of the attachment structure of the conventional face material.

  1-4 show an example of an embodiment of a mounting structure for a face material 3 according to the present invention.

  As shown in FIG. 2, the wall foundation 1 is for forming a frame structure, and is composed of a column member 1a and a horizontal member 1b. A plurality of pillar materials 1a are arranged at predetermined intervals in the horizontal direction (lateral direction), and become pillars of the building. A plurality of the horizontal members 1b are arranged in the height direction (longitudinal direction, vertical direction) with a plurality of column members 1a spanning at predetermined intervals, and are composed of beams or the like. The columnar material 1a and the horizontal member 1b constitute a frame that forms a shaft. In the illustrated embodiment, the horizontal member 1b is bridged across the plurality of pillar members 1a. However, the horizontal member 1b may be inserted between the adjacent pillars 1a and 1a. . The interval (pitch) between the adjacent column members 1a, 1a and the interval (pitch) between the adjacent horizontal members 1b, 1b are such that the wall substrate 1 is disposed at the end of the face member 3 to be attached. The pitch is the same as the pitch of the face material 3 or a pitch that is a fraction of the face material 3 (1 / n, for example, 1/2, 1/3). As the material of the wall base 1, a square material such as wood can be used.

  A plurality of face members 3 are attached to the wall base 1 so as to spread the front of the wall base 1 to form a load bearing wall, and generally have a substantially rectangular shape or a substantially square shape in front view.

  The size of the face material 3 is not particularly limited, and for example, a square having a side of about 500 to 1500 mm, a long side of about 1000 to 5000 mm, for example, about 2450 mm, and a short side of 500 to 1500 mm. For example, a rectangular shape having a size of about 910 mm can be used. It is also preferable that the size of the face material 3 is from 36 plates (910 × 1820 mm) to 30 plates (910 × 3030 mm). The thickness of the face material 3 is not particularly limited, and can be, for example, about 10 to 200 mm.

  In the form of FIG. 2, a bearing wall having a so-called vertically-stretched structure is shown in which a rectangular face member 3 is used, the long sides are vertically arranged, and the face members 3 are juxtaposed in the lateral direction. However, the present invention is not limited to this, and may be a load-bearing wall having a structure in which long sides are arranged side by side, that is, a so-called laterally-stretched structure.

  As the face material 3, a metal sandwich panel which is one of wall panels can be used. Thereby, a wall with high heat insulation and fire resistance can be formed.

  The metal sandwich panel is a wall panel formed by filling the core material 4 between two substantially parallel metal skins 5 and 5. The metal shells 5 and 5 can be formed, for example, by rolling or bending a metal plate having a thickness of about 0.27 to 1.6 mm. As the metal plate, for example, a galvanized steel plate, a coated steel plate, a Galvalume steel plate (registered trademark), or the like can be used. Moreover, as the core material 4, for example, a heat insulating material having a thickness of about 20 to 120 mm can be used. As this heat insulating material, for example, an inorganic heat insulating material such as rock wool or glass wool, or a resin heat insulating material such as urethane foam, styrene foam, phenol foam or polyisocyanurate foam can be used.

  Since the metal sandwich panel has a structure in which the core material 4 is sandwiched between the metal shells 5 and 5, shearing is performed at two points (front surface side and rear surface side) at a fixed distance where the fixture 2 and the metal shell 5 are in contact with each other. The force is evenly distributed and the structure is ideal for two-sided shear. On the other hand, when the face material 3 is only a plywood or an iron plate, a concentrated load is applied to one central portion in the thickness direction of the face material 3 in contact with the fixture 2, thereby causing local bending damage to the fixture 2. When the face material 3 is viewed as a whole, the face material 3 tends to be displaced from the two-surface shearing mechanism, and the allowable proof stress tends to decrease. Therefore, the metal sandwich panel is also used from the viewpoint of earthquake resistance.

  And in this invention, the folding | returning part 11 is formed in the edge part of the face material 3 by the piece (folding piece) by which the metal shell 5 was folded. In the form of FIG. 2, the metal shell 5 is folded back at both ends of the face material 3 to form a folded portion 11. Thereby, the load-bearing wall of the structure where the edge parts which have the folding | turning part 11 were faced | matched using one type of face material 3 can be formed. In the illustrated form, the folded portion 11 is provided at the end (long side) in the short direction of the face material 3, but may be provided at the end (short side) in the longitudinal direction. The adjacent face members 3 and 3 are attached to the wall base 1 with their end portions having the folded-back portions 11 butted together.

  As shown in FIG. 1, in this embodiment, the metal skin 5 at the front end of the face material 3 and the folded portion 11 formed by folding the metal skin 5 inside the face material 3 in a U shape. The protrusion 8 is formed. That is, the protrusion 8 is formed by folding the metal shell 5. The folding of the folding part 11 is not limited to the illustrated form, and may be folded in a U shape or folded in a V shape. When folded back into a U-shape or a U-shape, the ends of the protrusions 8 of the adjacent face members 3 can be brought into contact with each other in a planar shape. Further, it may be folded back so as to form a gap with the metal skin 5 or may be folded back so as to be in close contact with the metal skin 5. In addition, although the folding | returning part 11 may be provided only in one metal skin 5 before and behind, it is preferable that the folding | turning part 11 is provided in both front and back of the metal skin 5 for the strength improvement.

  Then, a projecting portion 8 formed by the metal skin 5 on the front side (the side far from the wall foundation 1) and a projection portion 8 formed by the metal skin 5 on the rear side (side closer to the wall foundation 1) A recess 6 is formed which is recessed inward in a direction perpendicular to the thickness direction 3 and has an end surface of the face member 3 as an opening. That is, the recess 6 is provided between the folded portions 11 and 11. The front protrusion 8 and the rear protrusion 8 may have a symmetric shape or an asymmetric shape. Further, in the illustrated embodiment, the metal skin 5 on the surface of the face material 3 is flush with the protruding portion 8, but the metal skin 5 is bent into a substantially L shape and recessed inward, and the recess is indented. The protrusion 8 may be formed so as to protrude from the position.

  From the front end of the folded portion 11, a packing receiving piece 12 bent in an L shape and extending in the thickness direction of the face material 3 so as to move away from the metal outer skin 5, and a metal outer skin 5 bent from an end of the packing receiving piece 12 into an L shape. And a return piece 13 extending substantially parallel and extending. The packing receiving piece 12 receives the packing 17.

  A packing 17 is provided in the recess 6. The packing 17 covers the side surface of the core material 4 and can be made of an elastically compressible material such as rubber.

  And in this invention, the fixing tool 2 penetrates the folding | returning part 11 from the surface of the face material 3, and is plunged into the wall base 1. That is, the fixture 2 passes through the protruding portion 8. Thereby, since the fixing tool 2 penetrates the metal skin 5 on the surface of the face material and the metal skin of the folded portion 11, the strength of the load bearing wall, particularly the strength against the shearing force can be improved. Further, in the form shown in the figure, since the folded portions 11 are formed on both the front and rear surfaces of the face material 3, the fixture 2 is penetrated by at least four metal plates of the metal shell 5, so that the strength is further improved. Is something that can be done. Alternatively, the folding part 11 may be folded a plurality of times, and the fixture 2 may be driven through the plurality of folded parts 11.

  As the fixture 2, for example, a nail, a screw, a screw, or the like can be used. Among these, it is preferable to use a screw in order to increase the attachment strength. The fixture 2 is driven at a predetermined pitch along the edge along the outer periphery of the face material 3. The pitch is preferably constant, but the pitch may be different at the center and corners, or in the longitudinal and transversal directions. Specifically, the pitch can be set to about 10 to 1000 mm, for example, about 100 mm.

  In attaching the face material 3 to the wall base 1, first, the face material 3 is arranged in front of the wall base 1 at the position of the corner of the wall, and the fixture 2 is driven in from the surface of the face material 3. 3 is attached to the wall base 1. At this time, an end portion of the face material 3 where the folded portion 11 is formed is disposed in front of the wall base 1. And the other face material 3 is arrange | positioned by abutting the edge part in which the folding | turning part 11 of the other face material 3 was provided in the edge part in which the turned part 11 of this face material 3 was provided, and the other face material 3 The fixture 2 is driven toward the wall base 1 from the surface. In this way, the adjacent face materials 3 can be bonded and fixed to the wall base 1. By repeating this operation, it is possible to attach the face material 3 by abutting the end portions having the folded portions 11, that is, the protruding portions 8. Then, when the face material 3 is joined by the fixture 2 and is sequentially attached to the wall base 1, the face material 3 is spread in the lateral direction.

  Next, the face material 3 is attached in the vertical direction by disposing another face material 3 on the upper side of the face material 3 spread in the lateral direction with the lower end faced against the upper end portion of the lower face material 3. be able to. And the face material 3 is attached to the horizontal direction 2nd row | line | column by abutting and attaching the face material 3 to the horizontal direction of this newly attached face material 3 sequentially. By repeating this, it is possible to spread the face material 3 on the entire wall.

  3 and 4 show an example of the structure of the end portion (most end portion) of the face material 3 spread. In FIG. 3, the fixture 2 is driven through the folded portion 11 at one end, and in FIG. 4, the fixture 2 is driven through the folded portion 11 at the other end. Yes. Even if it exists in any of these edge parts, since the fixing tool 2 is pierced through the protrusion part 8 and the fixing tool 2 has penetrated the surface outer skin and the folding | returning part 11, intensity | strength improves. In addition, you may make it use the another surface material 3 in which the folding | returning part 11 and the protrusion part 8 are not formed in the position which forms this outermost part.

  In addition, although the example which abuts the edge part of the face material 3 in which the folding | turning part 11 was provided in the horizontal direction was shown above, the edge part which has the folding | turning part 11 is faced | matched up and down, and the face material 3 is attached. Also good. When the end portion of the face material 3 having the folded portion 11 is abutted in the vertical direction, first, the end portion of the face material 3 not provided with the folded portion 11 is abutted and the face material 3 is spread and attached in the lateral direction. . Next, the end of the other face material 3 (the end having the folded portion 11) is abutted and attached to the upper end (the end having the folded portion 11) of the already attached face material 3. be able to.

  In the bearing wall formed in this way, the strength against shearing force is improved, and a highly earthquake-resistant wall can be formed. In other words, the strength of the bearing wall varies due to the strength of the frame, the strength of the screws, the strength of the face material, and the like, but with the above structure, when the shear force is applied, This increases the resistance to expand, and the tear strength of the face material 3 can be improved. Therefore, the face material shear strength is increased. And, it is not always necessary to use auxiliary materials such as plate materials, the number of parts can be reduced, and the labor of construction can be saved compared with the case where plate materials are placed and driven in front of the face material 3. It is. Further, when a plate material is used, the plate material protrudes forward and the design property is deteriorated. However, in the above structure, the plate material may not be used, so that the design property can be improved. However, a plate material may also be used in the bearing wall according to the present invention.

  In said embodiment, although the structure of the load bearing wall using the face material 3 in which the protrusion part 8, the folding | returning part 11, and the recessed part 6 were formed in the both ends was shown, this invention is not limited to this. For example, the face material 3 in which the folded portion 11 is formed only on one end portion may be disposed on the wall base 1, and the fixture 2 may be driven into the wall base 1 through the folded portion 11. (See FIGS. 3 and 4). Moreover, the face material 3 in which the folded portion 11 is formed only on one end portion, and the other face material 3 in which the folded portion 11 is formed only on the end portion that is abutted with the end portion having the folded portion 11, You may make it arrange | position on the wall foundation | substrate 1 face-to-face (projection parts 8) which have the folding | returning part 11 (refer FIG. 1). Further, the core material 4 is filled between the protruding portions 8 and 8, or the folded portion 11 formed by the front metal skin 5 and the folded portion 11 formed by the rear metal skin 5 are in close contact with each other. Thus, the recess 6 may not be formed. Also in these cases, since the fixture 2 is driven through the protruding portion 8 and the turned-up portion 11, the strength can be improved.

  In FIG. 5, other embodiment of the attachment structure of the face material 3 is shown. In this embodiment, the filling material 10 is inserted into the recess 6. The other structure is the same as that of FIG.

  The filling material 10 is disposed in a space formed by the opposing recesses 6 and 6. In the illustrated form, the filling material 10 is disposed between the protruding portions 8 and 8 (between the folded portions 11 and 11) across the concave portions 6 and 6 of the adjacent face materials 3. The filling material 10 may be individually disposed in the concave portions 6 and 6 of the face material 3. Further, in the form as shown in FIGS. 3 and 4, the filling material 10 may be disposed in the recess 6. The filling material 10 may or may not contact the packing 17. The filling material 10 may be the same type of material as that of the core material 4 or may be a different material. For example, gypsum board, foamed plastic heat insulating material, square material, wood and the like can be used. A steel square member (steel plate processed into a square shape) or a filling material 10 made of a metal plate may be used. The thickness of the steel plate can be set to, for example, about 0.8 mm to 10 mm.

  In attaching the filling material 10, when the end portions having the protruding portions 8 of the face material 3 are abutted with each other, the filling material 10 can be attached so as to be inserted into the concave portion 6 immediately before that.

  In the form shown in FIG. 5, the fixture 2 penetrates the filling material 10 in addition to the folded portion 11 and is driven into the wall foundation 1. Therefore, the strength of the wall can be further improved. Further, the filler 10 can improve fire resistance and heat insulation.

  In FIG. 6, other embodiment of the attachment structure of the face material 3 is shown. In this form, the core material 4 is filled between the front and rear folded portions 11 and 11, and the concave portion 6 is not formed in the face material 3. The folded portion 11 is embedded in the core material 4. Further, the packing receiving piece 12 and the return piece 13 are not provided. The other structure is the same as that of FIG.

  In the form of FIG. 6, the fixture 2 is driven into the wall base 1 through the folded portion 11 and the core material 4 filling the space between the folded portions 11 and 11. Therefore, the core material 4 can fulfill the function as the filling material 10 in the embodiment shown in FIG. 5 and can improve the strength of the wall. Further, the strength can be easily improved by reducing the number of parts without using a supplementary material 10 separately.

  A test specimen A for a bearing wall was prepared, and a wooden bearing wall and its magnification performance test / evaluation (evaluation related to Building Standard Law Enforcement Ordinance Article 46, Paragraph 4, Table 1 (8)) were conducted.

  In FIG. 7, the specification of the test body A is shown. In this test body A, two face members 3 are juxtaposed in a vertically stretched structure, and end portions having folded portions 11 of the face members 3 adjacent to each other at the center C of the test body A are abutted. .

  As the face material 3, a metal sandwich panel having vertical (face material height) H, horizontal (face material width) W, face material thickness, and steel plate thickness as shown in Tables 1 and 2 was used. As the core material 4, polyisocyanurate foam was used for all.

  In addition, as the face material 3 used in each embodiment, a projecting portion 8 and a recessed portion 6 are provided at both ends by a folded portion 11 as shown in FIG. The length from the exposed surface of 17 to the tip of the protrusion 8 was 20 mm.

  The column 1a is a rectangular shape having a long side of 89 mm and a short side of 38 mm and a length of 2374 mm. The long side is arranged in the column span shown in Tables 1 and 2 with the long side in the front-rear direction. did. In this test body A, the column material 1a was arranged at the center as well as the end of the face material 3.

  As the horizontal member 1b, a rectangular SPF (square member) having a long side of 89 mm x a short side of 38 mm is used, and the long side is arranged in the front-rear direction, with the length of 1858 mm at the upper end of the face member 3. And the thing of length 1858mm was arrange | positioned at the lower end part.

  A wooden upper substrate 21 is attached to the upper side of the horizontal member 1b arranged at the upper end, and a wooden lower substrate 22 is arranged below the horizontal member 1b arranged at the lower end. It is attached. The test is performed by moving the upper base material 21 and the lower base material 22 in a direction shifted in the opposite direction in the horizontal direction (lateral direction).

  As the fixture 2, a steel screw (exclusive drill screw) having a diameter (φ) of the implantation portion of 5.5 mm and a length of 80 mm was used. The fixture 2 was driven into the wall base 1 from the surface of the face member 3 with a driving pitch P of about 100 mm.

  As for the mounting structure of the face material 3, in each example, the left end L of the test body A is as shown in FIG. 3, the right end R is as shown in FIG. 4, and the center C is as shown in FIG. In each comparative example, the left end L of the test specimen A was configured as shown in FIG. 8B, the right end R as shown in FIG. 8C, and the center C as shown in FIG. 8A.

  Furthermore, about Examples 7-9, the filling material 10 was arrange | positioned in the recessed part 6, and it was set as the structure as FIG. As the filling material 10, the following was used.

  Gypsum board: Gypsum board having a width (width) of 40 mm, a length (height) of 910 mm, and a thickness (length in the thickness direction of the face material 1) of 25 mm.

  Urethane packing: A foamed urethane resin packing having a width (width) of 40 mm, a length (height) of 910 mm, and a thickness (length in the thickness direction of the face material 1) of 25 mm.

  Square bar: Steel square bar (width 0.8 mm in thickness) with a horizontal (width) 40 mm, vertical (height) 910 mm, and thickness (length in the thickness direction of the face plate 1) 25 mm. Processed into a mold).

(Experiment 1)
Using the test body A of Example 1 and Comparative Example 1, the strength was compared by the difference in the mounting structure of the face material 3. Table 1 shows the specifications of the structures of Example 1 and Comparative Example 1 and the test results thereof.

  As shown in Table 1, the structure of Example 1 was higher in maximum load, yield strength at specific deformation, and allowable shear strength than Comparative Example 1, and in particular, yield strength and wall magnification were high.

(Experiment 2)
Using the test body A of Examples 2 to 9, the strengths of the test bodies A having different specifications were measured. The specifications of the structures of Examples 2 to 9 and the test results are shown in Table 2. Example 1 is also shown again.

  As shown in Table 2, also in the specifications of Examples 2 to 9, results with a high wall magnification were obtained.

DESCRIPTION OF SYMBOLS 1 Wall base 2 Fixing tool 3 Face material 4 Core material 5 Metal outer skin 6 Recessed part 8 Protruding part 10 Filling material 11 Folding part 12 Packing receiving piece 13 Returning piece 17 Packing

Claims (3)

  An attachment structure of a face material filled with a core material between two metal skins, wherein a face material having a folded portion formed by folding the metal skin at the end is disposed on the wall base, An attachment structure for a face material, wherein a fixture is driven into a wall base through a folded portion from the surface of the material.   The face material, and another face material having a folded portion formed by folding the metal skin at the end, an end portion having the folded portion of the face material, and an end portion having the folded portion of the other face material. Are arranged side by side on the wall base, and the fixture is driven into the wall base through the surface of the other face material through the folded portion of the other face material. The mounting structure of the described face material.   The mounting structure for a face material according to claim 1, wherein a concave portion having an end face as an opening is provided at the end portion, and a filling material is disposed in the concave portion.

Images