Building exterior wall structure

Abstract

To provide a building exterior wall structure where an exterior wall panel having a plurality of vertical furring strips in a horizontal direction at an interval is mounted on a beam of a building, which enables the beam to be mounted on the exterior wall panels at low cost in the state of being hardly affected by a case where there is a construction error of the beam.SOLUTION: In a building exterior wall structure, vertical furring strips 52 of each exterior wall panel 5 are fixed to a wind-resistant beam 7 through an attachment member 6. The attachment member 6 includes: fixation parts 61a fixed to portions 52a for fixation provided on the vertical furring strips 52; and vertical recesses 62a having downward openings so as to be engaged with vertical piece parts 71 formed on the wind-resistant beam 7 from the upper side, wherein positions of the vertical recesses 62a to the vertical furring strips 52 are variable. The exterior wall panels 5 are fixed to the wind-resistant beam 7 at a predetermined position by adjusting the positions of the vertical recesses 62a to the vertical furring strips 52.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] This invention relates to a building exterior wall structure in which an exterior wall panel having a plurality of vertical furring strips spaced horizontally apart is attached to beams of a building. [Background technology]

[0002] Patent Document 1 discloses an enlarged exterior wall panel and a structure for attaching the exterior wall panel to the beams of a building. The exterior wall panel comprises a panel frame and a plurality of horizontally elongated exterior wall surface materials attached to the panel frame and arranged vertically. The horizontally elongated exterior wall surface materials are integrated together by a plurality of vertical furring strips arranged at intervals in the horizontal direction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-165249 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the exterior wall panel is fixed to, for example, a wind-resistant beam of a building, if there is an installation error in the wind-resistant beam during construction, the distance between the vertical furring strip and the wind-resistant beam differs from the designed distance, and the exterior wall construction cannot be carried out smoothly. Note that the invention shown in the above document does not show any measures to deal with the installation error in the construction of the beam.

[0005] In the conventional building exterior wall structure shown in Fig. 12, clips 102 facing vertical furring strips 101 of the exterior wall panel can be fastened with bolts 103, the outdoor flange of a wind-resistant beam 104 is positioned between the clips 102 and the vertical furring strips 101, and the vertical furring strips 101 are fixed to the wind-resistant beams 104 by bolting. In this structure, the installation accuracy of the exterior wall panel is determined by the construction accuracy of the wind-resistant beams 104, so any construction error in the wind-resistant beams 104 results in an installation error in the exterior wall panel.

[0006] On the other hand, in the conventional building exterior wall structure shown in Fig. 13, clips 102 facing vertical furring strips 101 of the exterior wall panel can be fastened with bolts 103, and through angles 105 are positioned between the clips 102 and the vertical furring strips 101, and the vertical furring strips 101 are fixed to the through angles 105. In this structure, the effects of construction errors in the wind-resistant beams 104 can be eliminated by providing the through angles 105, but the through angles 105 are welded to the wind-resistant beams 104 on-site, which increases the labor costs, and the use of the through angles 105 also increases the material costs.

[0007] In view of the above circumstances, an object of the present invention is to provide a building exterior wall structure in which an exterior wall panel having a plurality of vertical furring strips spaced horizontally apart is attached to a beam of a building, where the attachment of the exterior wall panel to the beam is less affected by construction errors in the beam and can be performed at low cost. [Means for solving the problem]

[0008] The building exterior wall structure of the present invention is a building exterior wall structure in which an exterior wall panel having a plurality of vertical furring strips spaced apart in the horizontal direction is attached to a beam of a building, Each vertical furring strip is fixed to the beam via a mounting member, The mounting member includes a fixing portion fixed to a fixing portion provided on the vertical furring strip and a vertical recess that engages with a vertical piece formed on the beam, and the position of the vertical recess relative to the vertical furring strip is variable, The position of the vertical recess relative to the vertical furring strip is adjusted so that the exterior wall panel is fixed to the beam at a predetermined position.

[0009] With the above configuration, the position of the vertical recess with respect to the vertical furring strip can be adjusted by the mounting member, and even if there is a construction error in the beam, the vertical recess can be engaged with the vertical piece with the exterior wall panel placed in the specified position (design position). Therefore, even without using through angles, the work of fixing each vertical furring strip to the beam becomes easy, and the exterior wall construction can be carried out smoothly and at low cost.

[0010] The fixing portion of the vertical furring strip may have a plurality of fastening holes formed therein spaced at a predetermined interval in the horizontal direction, and the fixing portion of the mounting member may have a plurality of fastening holes formed therein spaced at an interval different from the predetermined interval in the horizontal direction. In this way, even if the beam has a horizontal construction error, the vertical recess of the mounting member can be engaged with the vertical piece by selecting the plurality of fastening holes.

[0011] The fastening hole may be larger than the nominal diameter of the fastening member. With this, the position of the fastening member can be displaced with respect to the fastening hole within a clearance range, and within this displacement range, the vertical recess of the mounting member can be engaged with the vertical piece portion in response to construction errors of the beam.

[0012] the mounting member includes a first member having the fixing portion, a second member having the vertical recess, and a fastening member for fixing them together; The first member has a plurality of fastening holes, through which the fastening members are inserted, spaced apart at predetermined intervals in a horizontal direction; The second member may be formed with a plurality of mutual fastening holes spaced apart at intervals different from the predetermined interval in the horizontal direction, through which the fastening members are inserted. With this, even if the beam has a horizontal construction error, each vertical recess can be engaged with the vertical piece by selecting the plurality of mutual fastening holes.

[0013] The vertical recess may be formed vertically below an inner region of the most distant interfastening holes among the plurality of interfastening holes of the second member. With this, the positions of the plurality of interfastening holes can be changed with respect to the vertical recess by inverting the second member from side to side, thereby making it possible to increase the range of adaptation to construction errors.

[0014] The fastening holes may be larger than the nominal diameter of the fastening members. This allows the position of the fastening members to be displaced relative to the fastening holes within a clearance range, and within this displacement range, the vertical recesses of the mounting members can be engaged with the vertical pieces to accommodate construction errors of the beam.

[0015] The fixing points of the vertical furring strips may be on a plane perpendicular to the plane of the exterior wall panel, which makes it easier to shift the mounting members in the direction in which the position of the vertical recesses can be changed. Effect of the Invention

[0016] According to the present invention, the work of fixing each vertical furring strip to the beams can be easily performed without using through angles to accommodate construction errors in the beams, thereby achieving the effect of smooth and low-cost construction of exterior walls. [Brief description of the drawings]

[0017] [Figure 1] 1 is a perspective view illustrating an exterior wall panel used in a building exterior wall structure according to an embodiment. FIG. [Diagram 2] 1A is a cross-sectional view showing the upper and lower parts of the exterior wall surface material in FIG. 1, and FIG. 1B is a cross-sectional view of the fitting locations of the exterior wall surface materials arranged above and below in FIG. [Diagram 3] FIG. 1A is a side view showing an outline of a building exterior wall structure according to an embodiment, FIG. 1B is a plan view of the same, and FIG. 1C is a rear view of the same. [Figure 4]FIG. 1A is a front view of the first member of the mounting member used in the building exterior wall structure of the embodiment, FIG. 1B is a front view of the second member, and FIG. 1C is a front view showing the first member and the second member interconnected. [Diagram 5] 1 is a side view showing an outline of a building exterior wall structure according to an embodiment of the present invention. [Figure 6] Figures 3A, 3B, and 3C are explanatory diagrams showing the horizontal position adjustment of the vertical recesses of the mounting members when there is a construction error in the wind-resistant beam toward the outdoors in a building exterior wall structure according to an embodiment. [Figure 7] Figures 3A, 3B, and 3C are explanatory diagrams showing the horizontal position adjustment of the vertical recesses of the mounting members when there is a construction error in the wind-resistant beam toward the outdoors in a building exterior wall structure according to an embodiment. [Figure 8] Figures 3A, 3B, and 3C are explanatory diagrams showing the horizontal position adjustment of the vertical recesses of the mounting members when there is a construction error in the indoor direction in the wind-resistant beam in the building exterior wall structure of the embodiment. [Figure 9] Figures 3A, 3B, and 3C are explanatory diagrams showing the horizontal position adjustment of the vertical recesses of the mounting members when there is a construction error in the indoor direction in the wind-resistant beam in the building exterior wall structure of the embodiment. [Figure 10] FIG. 1 is a side view showing an outline of a building exterior wall structure according to an embodiment, in which an equilateral angle is placed in a vertical recess for reinforcement. [Figure 11] FIG. 2 is a schematic perspective view showing an example of a building exterior wall structure according to an embodiment, in which two mounting members are provided on a vertical furring strip. [Figure 12] FIG. 1 is a perspective view showing a conventional building exterior wall structure. [Figure 13] FIG. 1 is a side view showing a conventional building exterior wall structure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. As shown in Fig. 1, the exterior wall panel 5 used in the building exterior wall structure according to this embodiment has a structure in which a plurality of horizontally long exterior wall surface materials 51 arranged vertically are connected to each other and integrated by a plurality of vertical furring strips 52 arranged at intervals in the horizontal direction. In the example shown in Fig. 1, six vertical furring strips 52 made of lip channel steel or square steel pipes are provided.

[0019] The exterior wall surface material 51 is, for example, a metal sandwich panel in which a non-combustible heat insulating material 51a is sandwiched between steel plates 51b and 51c, as shown in Figures 2(A) and 2(B). When two exterior wall surface materials 51 are arranged one above the other, two recesses 51d formed on the upper end surface of the exterior wall surface material 51 located in the lower tier and long in the width direction fit into two protrusions 51e formed on the lower end surface of the exterior wall surface material 51 located in the upper tier, thereby combining the upper and lower exterior wall surface materials 51 so that they are not misaligned in the out-of-plane direction.

[0020] In addition, by using a base assembly frame not shown, the exterior wall panel 5, which is made by arranging the multiple exterior wall surface materials 51 one above the other and connecting them with vertical furring strips 52, can be assembled at a location other than the exterior wall mounting location of the building structure to which the exterior wall panel 5 is attached.

[0021] 3(A), (B), and (C), the exterior wall panel 5 is fixed to the vertical piece 71 of the wind-resistant beam 7 of the building by using a mounting member 6 in which the position of a vertical recess 62a, described below, relative to the vertical furring strip 52 is variable. In this embodiment, the wind-resistant beam 7 is arranged with the H-shaped steel flanges positioned on the left and right, and the upper part of the flange positioned on the outdoor side becomes the vertical piece 71.

[0022] As shown in Figs. 4(A), (B) and (C), the mounting member 6 is composed of a first member 61 made of a plate-shaped steel material and a second member 62 similarly made of a plate-shaped steel material, and they are fixed to each other by fastening members such as bolts and nuts. The mounting member 6 is fixed to a fixing point 52a provided on the vertical furring strip 52 by using fastening members such as bolts and nuts. The fixing point 52a has two fastening holes spaced apart at a predetermined interval (e.g., 35 mm length) in the horizontal direction outside the surface of the exterior wall panel 5, in two rows, i.e., two vertically and two horizontally, for a total of four. The fixing points 52a are formed on the surface of the vertical furring strip 52 that is perpendicular to the surface of the exterior wall panel 5 (web surface of the lip channel steel).

[0023] The first member 61 has a fixing portion 61a that is fixed to the fixing location 52a. The fixing portion 61a has two fastening holes formed in two rows, one above the other, that are spaced apart horizontally outside the plane at an interval (e.g., 30 mm) different from the predetermined interval in the fixing location 52a, i.e., two vertical and two horizontal fastening holes, for a total of four. When fixing the fixing portion 61a to the fixing location 52a, two vertical fastening holes are used.

[0024] In addition, the first member 61 has three mutual fastening holes 61b (e.g., 30 mm apart) spaced apart at a predetermined interval in the horizontal direction outside the plane, in two upper and lower rows, i.e., two vertically and three horizontally, for a total of six.

[0025] The second member 62 has a vertical recess 62a having a downward opening so as to engage with the vertical piece 71 of the wind-resistant beam 7 from above.

[0026] In addition, the second member 62 has three mutual fastening holes 62b (for example, 40 mm apart and 50 mm apart) spaced horizontally outside the plane at intervals different from the specified interval in the first member 61, formed in two upper and lower rows, i.e., two vertically and three horizontally, for a total of six.

[0027] The vertical recess 62a is formed vertically below the inner region of the furthest-spaced interlocking holes 62b among the three rows of interlocking holes 62b of the second member 62. In this embodiment, the center of the three rows of interlocking holes 62b and the center line of the vertical recess 62a are aligned vertically. By using the second member 62 in a left-right inversion, the intervals of the three rows of interlocking holes 62b from the side closer to the vertical furring strip 52 can be changed to 40 mm and 50 mm in order, and the intervals can also be changed to 50 mm and 40 mm in order. In other words, the row intervals of the multiple rows of interlocking holes 62b can be changed by left-right inversion of the second member 62 with the vertical recess 62a as a reference.

[0028] The first member 61 and the second member 62 are fixed to each other by fastening members such as bolts and nuts inserted into the fastening holes 62b. In this fixing, two vertical fastening holes 62b are used.

[0029] The fastening hole is larger than the nominal diameter (male screw outer diameter) of the fastening member. In this embodiment, the diameter of the fastening hole is φ15 mm for an M12 bolt, which is the fastening member. Note that only one of the fastening hole of the fixing portion 61a and the fastening hole of the fixing location 52a may be made larger as described above.

[0030] The mutual fastening holes 61b and 62b are also larger than the nominal diameter of the fastening members. In this embodiment, the diameter of the mutual fastening hole 62b is φ15 mm for an M12 bolt, which is the fastening member. Note that only one of the mutual fastening holes 61b and 62b may be made larger as described above.

[0031] The height of the vertical recess 62a is set to, for example, 35 mm, and as shown in Fig. 5, if the upper end of the vertical piece 71 of the wind-resistant beam 7 and the vertical recess 62a are engaged as designed, the height of this engagement is secured to be 20 mm. On the other hand, if the wind-resistant beam 7 has a construction error of 10 mm higher in the vertical direction, the height of the engagement will be 30 mm, and if the wind-resistant beam 7 has a construction error of 10 mm lower in the vertical direction, the height of the engagement will be 10 mm.

[0032] In addition, if a construction error occurs in which the wind beam 7 is positioned horizontally outward from the design position, the vertical recess 62a of the mounting member 6 can be engaged with the vertical piece 71 by selecting the fastening hole of the fixing portion 52a, the fastening hole of the fixing portion 61a, the mutual fastening hole 61b, and the mutual fastening hole 62b at G1, G2, and G3, respectively, as shown in Figures 6(A), (B), and (C). That is, the position of the vertical recess 62a relative to the vertical furring strip 52 is adjusted, and the exterior wall panel is fixed to the wind beam 7 at a predetermined position. Note that G is the distance between the outdoor flange of the wind beam 7 and the indoor side of the vertical furring strip 52.

[0033] Similarly, if a construction error occurs in which the wind beam 7 protrudes outward in the horizontal direction by a smaller amount than the above, as shown in Figures 7(A), (B), and (C), the vertical recess 62a can be engaged with the vertical piece 71 by selecting the fastening hole of the fixing portion 52a, the fastening hole of the fixing portion 61a, the mutual fastening hole 61b, and the mutual fastening hole 62b at G4, G5, and G6, respectively. That is, the position of the vertical recess 62a relative to the vertical furring strip 52 is adjusted, and the exterior wall panel is fixed to the wind beam 7 at a predetermined position.

[0034] In addition, in Fig. 6 and Fig. 7, the selected fastening holes are indicated by hatching. In addition, in G5 and G6, the second member 62 is used with the left and right reversed. In addition, each interval between G1 to G6 is 5 mm, and the error between these 5 mm can be accommodated by making the diameters of the fastening holes and the mutual fastening holes 61b, 62b larger than the nominal diameter of the bolt (for example, if the hole diameter is 15 mm for an M12 bolt, it can be adjusted by ±3 mm). That is, by combining the arrangement of the holes in G that allows adjustment at 5 mm intervals (stepwise adjustment) and the adjustment of, for example, ±3 mm (fine adjustment within each step) by making the holes larger, the construction error of the wind-resistant beam 7 can be finely accommodated.

[0035] 8(A), (B), and (C), in the event of a construction error that causes the wind beam 7 to be horizontally inward from the design position, the vertical recess 62a can be engaged with the vertical piece 71 by selecting the fastening hole of the fixing portion 52a, the fastening hole of the fixing portion 61a, the mutual fastening hole 61b, and the mutual fastening hole 62b at G7, G8, and G9, respectively. That is, the position of the vertical recess 62a relative to the vertical furring strip 52 is adjusted, and the exterior wall panel is fixed to the wind beam 7 at a predetermined position.

[0036] Similarly, if a construction error occurs in which the wind beam 7 goes inward in the horizontal direction by a larger amount than the above, as shown in Figures 9(A), (B), and (C), the vertical recess 62a can be engaged with the vertical piece 71 by selecting the fastening hole of the fixing portion 52a, the fastening hole of the fixing portion 61a, the mutual fastening hole 61b, and the mutual fastening hole 62b at G10, G11, and G12, respectively. That is, the position of the vertical recess 62a relative to the vertical furring strip 52 is adjusted, and the exterior wall panel is fixed to the wind beam 7 at a predetermined position (design position).

[0037] In addition, in Fig. 8 and Fig. 9, the selected fastening holes are indicated by hatching. In addition, in G10 and G11, the second member 62 is used with the left and right reversed. In addition, each interval between G7 to G12 is 5 mm, and the error between these 5 mm can be accommodated by making the diameters of the fastening holes and the mutual fastening holes 61b, 62b larger than the nominal diameter of the bolt (similar to the above, for example, if the hole diameter is 15 mm for an M12 bolt, it can be adjusted by ±3 mm). That is, similar to the above, the arrangement of the holes in G that allows adjustment at 5 mm intervals (stepwise adjustment) and the adjustment of, for example, ±3 mm (fine adjustment within each step) by making the holes larger can be combined to precisely accommodate the construction error of the wind-resistant beam 7.

[0038] With the above configuration, the position of the vertical recess 62a relative to the vertical furring strip 52 can be changed by the mounting member 6, so even if there is a horizontal construction error in the wind-resistant beam 7, it is possible to engage the vertical recess 62a with the vertical piece 71 with the exterior wall panel 5 placed in a specified position (design position). This makes it easier to fix each vertical furring strip 52 to the wind-resistant beam 7 via the mounting member 6, allowing exterior wall construction to be carried out smoothly and at low cost.

[0039] If multiple fastening holes are formed at a predetermined interval in the fixing portion 52a of the vertical furring strip 52, and multiple fastening holes are also formed in the fixing portion 61a at an interval different from the predetermined interval, then even if there is a horizontal construction error in the wind beam 7, it is possible to engage each vertical recess 62a with the vertical piece 71 by selecting the multiple fastening holes. The fastening holes formed in the fixing portion 52a can also be screw holes.

[0040] If the fastening hole of the fixing portion 52a and the fastening hole of the fixing portion 61a are made larger than the nominal diameter of the fastening member, the position of the fastening member can be displaced within a clearance range with respect to the fastening hole, and within this displaceable range, the vertical recess 62a of the mounting member 6 can be engaged with the vertical piece 71 for the construction error of the wind-resistant beam 7. Note that the fastening hole can be, for example, larger than the nominal diameter of the fastening member plus 1 mm (preferably the nominal diameter plus 2 mm) and smaller than the nominal diameter plus 5 mm (preferably the nominal diameter plus 4 mm).

[0041] Since the mounting member 6 consists of a first member 61 and a second member 62, even if there is a horizontal construction error in the wind-resistant beam 7, each vertical recess 62a can be engaged with the vertical piece 71 by selecting the mutual fastening holes 61b and the mutual fastening holes 62b.

[0042] When a vertical recess 62a is formed vertically below the inner region of the most distant interfastening holes 62b among the multiple interfastening holes 62b of the second member 62, the positions of the multiple interfastening holes 62b relative to the vertical recess 62a can be changed by flipping the second member 62 left and right.

[0043] If the mutual fastening holes 61b and 62b are made larger than the nominal diameter of the fastening members, the positions of the fastening members can be displaced within a clearance range with respect to the mutual fastening holes 61b and 62b, and within this displaceable range, the vertical recess 62a of the mounting member 6 can be engaged with the vertical piece 71 in response to construction errors of the wind-resistant beam 7. The mutual fastening holes 61b and 62b can be made, for example, larger than the nominal diameter of the fastening member plus 1 mm (preferably the nominal diameter plus 2 mm) and smaller than the nominal diameter plus 5 mm (preferably the nominal diameter plus 4 mm).

[0044] When the fixing points 52a of the vertical furring strips 52 are located on a plane perpendicular to the surface of the exterior wall panel 5, it is easy to shift the mounting member 6 in the direction in which the position of the vertical recess 62a can be changed.

[0045] 10, an angle (e.g., 30 mm×30 mm×3 mm) 63 may be welded and fixed to the second member 62 so that the outer surface of the standing piece 63a protrudes horizontally along the edge of the vertical recess 62a. When the exterior wall panel 5 is subjected to wind pressure, a large pressure is generated on the groove surface of the vertical recess 62a due to contact with the vertical piece 71, but a large contact area is secured by the standing piece 63a of the angle 63 coming into contact with the vertical piece 71, and the pressure bearing burden on the vertical recess 62a can be reduced.

[0046] Also, as shown in Fig. 11, the fixing points 52a of the vertical furring strips 52 may be formed on two faces perpendicular to the face of the exterior wall panel 5, and two mounting members 6 may be provided for one vertical furring strip 52. In this case, the bearing pressure burden of each vertical recess 62a is halved by the two mounting members 6. In the structure shown in Fig. 11, square steel pipes with a closed cross-section structure are used as the vertical furring strips 52, and the two mounting members 6 are fixed to the vertical furring strips 52 by long bolts and nuts that pass through the square steel pipes.

[0047] The portion of the wind-resistant beam 7 that engages with the vertical recess 62a is not limited to the flange portion of the H-shaped steel. Moreover, the exterior wall panel 5 is not limited to a large-sized panel in which multiple exterior wall facing materials 51 are arranged vertically. Moreover, an example has been shown in which the mounting member 6 is made up of two members, the first member 61 and the second member 62, to increase the range of compatibility with construction errors of beams such as the wind-resistant beam 7, but this is not limiting. The mounting member 6 may be made up of a single plate, and the selection of fastening holes when mounting the vertical furring strip 52 to the fixing points 52a and the positional displacement of the fastening member to increase the diameter of the fastening holes may also accommodate construction errors of the beam.

[0048] Although the embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to the illustrated embodiment. Various modifications and variations can be made to the illustrated embodiment within the same scope as the present invention or within an equivalent scope. [Explanation of symbols]

[0049] 5: Exterior wall panel 6: Mounting material 7: Wind-resistant beam 51: Exterior wall material 51a: Non-combustible insulation material 51b: Steel plate 51c: Steel plate 51d: Recess 51e: Convex 52: Vertical furring strip 52a: Fixing point 61: First member 61a: Fixed part 61b: Mutual fastening hole 62: Second member 62a: Vertical recess 62b: Mutual fastening hole 63: Angle 63a: Standing section 71: Vertical piece

Claims

1. An exterior wall structure in which an exterior wall panel having a plurality of vertical furring strips spaced horizontally is attached to a beam of a building, Each vertical furring strip is fixed to the beam via a mounting member, The mounting member includes a fixing portion fixed to a fixing portion provided on the vertical furring strip and a vertical recess that engages with a vertical piece formed on the beam, and the position of the vertical recess relative to the vertical furring strip is variable, The position of the vertical recess relative to the vertical furring strip is adjusted so that the exterior wall panel is fixed to the beam at a predetermined position. A building exterior wall structure characterized in that a plurality of fastening holes spaced horizontally at a predetermined interval are formed in the fixing locations of the vertical furring strips, and a plurality of fastening holes spaced horizontally at intervals different from the predetermined intervals are formed in the fixing portions of the mounting members.

2. 2. The building exterior wall structure according to claim 1, wherein the fastening holes are larger than a nominal diameter of the fastening members.

3. In the building exterior wall structure according to claim 1 or 2, the mounting member comprises a first member having the fixing portion, a second member having the vertical recess, and a fastening member for fixing them to each other, The first member has a plurality of fastening holes, each of which is horizontally spaced apart at a predetermined interval, through which the fastening members are inserted; A building exterior wall structure characterized in that the second member is formed with a plurality of interconnecting fastening holes, through which the fastening members are inserted, spaced horizontally at intervals different from the specified interval.

4. A building exterior wall structure in which an exterior wall panel having a plurality of vertical furring strips spaced horizontally is attached to a beam of a building, Each vertical furring strip is fixed to the beam via a mounting member, The mounting member includes a fixing portion fixed to a fixing portion provided on the vertical furring strip and a vertical recess that engages with a vertical piece formed on the beam, and the position of the vertical recess relative to the vertical furring strip is variable, The position of the vertical recess relative to the vertical furring strip is adjusted so that the exterior wall panel is fixed to the beam at a predetermined position. the mounting member includes a first member having the fixing portion, a second member having the vertical recess, and a fastening member for fixing these members to each other; The first member has a plurality of fastening holes, each of which is horizontally spaced apart at a predetermined interval, through which the fastening members are inserted; The second member has a plurality of fastening holes, through which the fastening members are inserted, spaced apart in a horizontal direction at intervals different from the predetermined intervals; A building exterior wall structure, characterized in that the vertical recess is formed vertically below an inner region of the most distant mutual fastening holes among the plurality of mutual fastening holes of the second member.

5. A building exterior wall structure in which an exterior wall panel having a plurality of vertical furring strips spaced horizontally is attached to a beam of a building, Each vertical furring strip is fixed to the beam via a mounting member, The mounting member includes a fixing portion fixed to a fixing portion provided on the vertical furring strip and a vertical recess that engages with a vertical piece formed on the beam, and the position of the vertical recess relative to the vertical furring strip is variable, The position of the vertical recess relative to the vertical furring strip is adjusted so that the exterior wall panel is fixed to the beam at a predetermined position. the mounting member includes a first member having the fixing portion, a second member having the vertical recess, and a fastening member for fixing these members to each other; The first member has a plurality of fastening holes, each of which is horizontally spaced apart at a predetermined interval, through which the fastening members are inserted; The second member has a plurality of fastening holes, through which the fastening members are inserted, spaced apart in a horizontal direction at intervals different from the predetermined intervals; A building exterior wall structure, characterized in that the mutual fastening holes are larger than the nominal diameter of the fastening members.

6. The building exterior wall structure according to any one of claims 1 to 5, wherein the fixing points of the vertical furring strips are located on a plane perpendicular to the surface of the exterior wall panel.

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