JP7657587B2 - Building exterior wall structure - Google Patents

Description

This invention relates to a building exterior wall structure in which exterior wall panels having multiple vertical furring strips spaced horizontally apart are attached to the beams of a building.

Patent Document 1 discloses an enlarged exterior wall panel and a structure for attaching this exterior wall panel to the beams of a building. The exterior wall panel comprises a panel frame and a number of horizontally elongated exterior wall surface materials attached to the panel frame and arranged one above the other. The horizontally elongated exterior wall surface materials are integrated together by a number of vertical furring strips spaced apart in the horizontal direction.

JP 2020-165249 A

However, when fixing the exterior wall panel 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 will differ from the design distance, and construction of the exterior wall will not proceed smoothly. The invention shown in the above document did not provide any solution to the installation error in the construction of the beam.

In the conventional building exterior wall structure shown in FIG. 12, clips 102 facing the vertical furring strips 101 of the exterior wall panel can be fastened with bolts 103, the outdoor flange of the 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 beam 104 by bolting. In this structure, the installation accuracy of the exterior wall panel is determined by the construction accuracy of the wind-resistant beam 104, so any construction error in the wind-resistant beam 104 results in an installation error in the exterior wall panel.

On the other hand, in the conventional building exterior wall structure shown in Figure 13, clips 102 facing the 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.

In view of the above circumstances, this invention aims to provide a building exterior wall structure in which an exterior wall panel having multiple vertical furring strips spaced horizontally apart is attached to the beams of a building, and to make it possible to attach the exterior wall panel to the beams without being affected by construction errors in the beams and at low cost.

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.

With the above configuration, the position of the vertical recess relative 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). This makes it easier to fix each vertical furring strip to the beam without using through angles, and exterior wall construction can be carried out smoothly and at low cost.

The fixing portion of the vertical furring strip may have a plurality of fastening holes formed therein spaced horizontally at a predetermined interval, and the fixing portion of the mounting member may have a plurality of fastening holes formed therein spaced horizontally at intervals different from the predetermined interval. 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.

The fastening hole may be larger than the nominal diameter of the fastening member. This allows the position of the fastening member to be displaced relative to the fastening hole within a clearance range, and within this range of displacement, it becomes possible for the vertical recess of the mounting member to engage with the vertical piece to accommodate construction errors in the beam.

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 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. In this way, even if the beam has a horizontal construction error, each of the vertical recesses can be engaged with the vertical piece by selecting the plurality of mutual fastening holes.

The vertical recess may be formed vertically below the inner region of the most distant interlocking holes of the second member. In this way, the positions of the multiple interlocking holes can be changed with respect to the vertical recess by inverting the second member from side to side, thereby increasing the range of tolerance for construction errors.

The mutual 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 mutual fastening holes within a clearance range, and within this range of displacement, it becomes possible for the vertical recesses of the mounting members to engage with the vertical pieces to accommodate construction errors in the beam.

The fixing points of the vertical furring strips may be on a plane perpendicular to the surface of the exterior wall panel. This makes it easier to shift the mounting member in the direction in which the vertical recesses are positioned.

The present invention has the effect of facilitating the work of fixing each vertical furring strip to the beam without using through angles to accommodate beam construction errors, allowing for smooth and low-cost construction of exterior walls.

1 is a perspective view illustrating an exterior wall panel used in a building exterior wall structure according to an embodiment. FIG. 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. 1A is a side view showing an outline of a building exterior wall structure according to an embodiment of the present invention, FIG. 1B is a plan view thereof, and FIG. 1C is a rear view thereof. 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 state in which the first member and the second member are interconnected. 1 is a side view showing an outline of a building exterior wall structure according to an embodiment of the present invention. 1A, 1B, and 1C are explanatory diagrams showing the horizontal position adjustment of the vertical recess of the mounting member when there is a construction error in the wind-resistant beam toward the outdoors in a building exterior wall structure according to an embodiment. 1A, 1B, and 1C are explanatory diagrams showing the horizontal position adjustment of the vertical recess of the mounting member when there is a construction error in the wind-resistant beam toward the outdoors in a building exterior wall structure according to an embodiment. 1A, 1B, and 1C are explanatory diagrams showing the horizontal position adjustment of the vertical recess of the mounting member when there is a construction error in the indoor direction of the wind-resistant beam in the building exterior wall structure of the embodiment. 1A, 1B, and 1C are explanatory diagrams showing the horizontal position adjustment of the vertical recess of the mounting member when there is a construction error in the indoor direction of the wind-resistant beam in the building exterior wall structure of the embodiment. 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. FIG. 1 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. FIG. 1 is a perspective view showing a conventional building exterior wall structure. FIG. 1 is a side view showing a conventional building exterior wall structure.

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.

The above-mentioned exterior wall surface material 51 is, for example, a metal sandwich panel in which 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, so that the upper and lower exterior wall surface materials 51 are combined so that they do not shift out of position relative to each other in the out-of-plane direction.

In addition, by using a base frame (not shown), the exterior wall panel 5, which is made by arranging the multiple exterior wall facings 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 frame to which the exterior wall panel 5 is attached.

As shown in Figures 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 using a mounting member 6 in which the position of the 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 located on the outdoor side becomes the vertical piece 71.

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 also 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 also fixed to a fastening point 52a provided on the vertical furring strip 52 using fastening members such as bolts and nuts. The fastening 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, one above the other, i.e., two vertically and two horizontally, for a total of four. The fastening 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 (the web surface of the lip channel steel).

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 that are spaced apart horizontally outside the plane at a distance (e.g., 30 mm) different from the above-mentioned predetermined distance at the fixing location 52a, and are arranged in two rows, one above the other, 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.

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.

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

The second member 62 has three mutual fastening holes 62b (e.g., 40 mm apart and 50 mm apart) spaced apart horizontally outside the plane at intervals different from the predetermined interval in the first member 61, in two upper and lower rows, i.e., two vertically and three horizontally, for a total of six.

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 hole center of the three rows of interlocking holes 62b and the center line of the vertical recess 62a are aligned on a vertical line. By using the second member 62 in a left-right inversion, the spacing of the three rows of interlocking holes 62b from the side closest to the vertical furring strip 52 can be changed to 40 mm and 50 mm in that order, and the spacing can also be changed to 50 mm and 40 mm in that order. In other words, the row spacing of the multiple rows of interlocking holes 62b can be made different by left-right inversion of the second member 62 with the vertical recess 62a as a reference.

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. Two vertical fastening holes 62b are used for this fastening.

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 it is also possible to make only one of the fastening holes of the fixing portion 61a and the fixing location 52a larger as described above.

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.

The height of the vertical recess 62a is set to, for example, 35 mm, and as shown in Figure 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.

In addition, if a construction error occurs in which the wind-resistant 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). In other words, 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-resistant beam 7 at a predetermined position. Note that G is the distance between the outdoor flange of the wind-resistant beam 7 and the indoor side of the vertical furring strip 52.

Similarly, if a construction error occurs in which the wind beam 7 protrudes outward in the horizontal direction by a smaller amount than described above, 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 inter-fastening hole 61b, and the inter-fastening hole 62b in G4, G5, and G6, respectively, as shown in Figures 7(A), (B), and (C). In other words, 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 in the specified position.

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, the intervals between G1 to G6 are 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, adjustment of ±3 mm is possible). In other words, by combining the arrangement of the holes in G that allows adjustment at 5 mm intervals (stepwise adjustment), for example, and the adjustment of ±3 mm by making the holes larger (fine adjustment within each step), it is possible to precisely accommodate the construction error of the wind-resistant beam 7.

In addition, if a construction error occurs in which the wind beam 7 is positioned horizontally inward from the design position, as shown in Figures 8(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 in G7, G8, and G9, respectively. In other words, 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 in the specified position.

Similarly, if a construction error occurs in which the wind beam 7 is moved inward horizontally 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 in G10, G11, and G12, respectively. In other words, 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 in the specified position (design position).

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, the intervals between G7 to G12 are 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, as above). In other words, as 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 by making the holes larger (fine adjustment within each step) can be combined to precisely accommodate the construction error of the wind-resistant beam 7.

With the above configuration, the mounting member 6 allows the position of the vertical recess 62a relative to the vertical furring strip 52 to be changed, so even if there is a horizontal construction error in the wind-resistant beam 7, the vertical recess 62a can be engaged 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.

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 intervals different from the predetermined intervals, each vertical recess 62a can be engaged with the vertical piece 71 by selecting the multiple fastening holes, even if there is a horizontal construction error in the wind-resistant beam 7. The fastening holes formed in the fixing portion 52a can also be screw holes.

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 the clearance range, and within this displacement range, the vertical recess 62a of the mounting member 6 can be engaged with the vertical piece 71 to accommodate the construction error of the wind-resistant beam 7. 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).

When the mounting member 6 is composed 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.

If a vertical recess 62a is formed vertically below the inner region of the most distant interlocking holes 62b among the multiple interlocking holes 62b of the second member 62, the positions of the multiple interlocking holes 62b relative to the vertical recess 62a can be changed by inverting the second member 62 left and right.

If the mutual fastening holes 61b and 62b are made larger than the nominal diameter of the fastening member, the position of the fastening member can be displaced within the clearance range with respect to the mutual fastening holes 61b and 62b, and within this displacement range, the vertical recess 62a of the mounting member 6 can be engaged with the vertical piece 71 to accommodate the construction error of the wind-resistant beam 7. Note that the mutual fastening holes 61b and 62b can be, for example, larger than the dimension obtained by adding 1 mm to the nominal diameter of the fastening member (preferably the dimension obtained by adding 2 mm to the nominal diameter) and smaller than the dimension obtained by adding 5 mm to the nominal diameter (preferably the dimension obtained by adding 4 mm to the nominal diameter).

If 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 of changing the position of the vertical recess 62a.

As shown in FIG. 10, an angle (e.g., 30 mm x 30 mm x 3 mm) 63 may be welded 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. However, by contacting the standing piece 63a of the angle 63 with the vertical piece 71, a large contact area is ensured, and the pressure bearing burden on the vertical recess 62a can be reduced.

Also, as shown in Figure 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 two mounting members 6 halve the bearing load of each vertical recess 62a. In the structure shown in Figure 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 using long bolts and nuts that pass through the square steel pipes.

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. Furthermore, the exterior wall panel 5 is not limited to a large-sized panel in which multiple exterior wall surface materials 51 are arranged vertically. Furthermore, 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 limited. The mounting member 6 can be made up of a single plate, and construction errors of the beam can be accommodated by selecting fastening holes when attaching the vertical furring strip 52 to the fixing portion 52a and by displacing the position of the fastening member to increase the diameter of the fastening hole.

Although an 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.

5: Exterior wall panel 6: Mounting member 7: Wind-resistant beam 51: Exterior wall surface material 51a: Non-combustible heat-insulating material 51b: Steel plate 51c: Steel plate 51d: Recess 51e: Convex portion 52: Vertical furring strip 52a: Fixing portion 61: First member 61a: Fixing portion 61b: Mutual fastening hole 62: Second member 62a: Vertical recess 62b: Mutual fastening hole 63: Angle 63a: Standing piece portion 71: Vertical piece portion

Claims (6)

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.
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. The building exterior wall structure according to claim 1, characterized in that the fastening holes are larger than the nominal diameter of the fastening members. 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. 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. 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. A building exterior wall structure according to any one of claims 1 to 5, characterized in that 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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