Reinforcement structure for building frames

Abstract

To provide a building frame reinforcement structure that can increase the structural strength of a building frame by resolving various issues caused by on-site welding, without requiring residents to vacate the premises. [Solution] An existing panel 20 is attached to a building frame 10 composed of upper and lower existing beams 11, 12 and left and right existing columns 13. The existing panel 20 is an existing load-bearing panel that has two existing vertical battens 21, two existing horizontal battens 22, 23 located in the upper and lower sections, and one or two intersecting existing braces 25. This is a reinforcing structure 100 for the building frame. A new brace unit 30, consisting of one or two intersecting new braces 31 and new gusset plates 34 fixed to both ends of the new braces 31, is arranged on the outdoor side of the existing load-bearing panel 20 in the area 28 where the existing braces 25 have been removed, and the new gusset plates 34 are joined to at least the existing vertical battens 21 by fasteners 40.

Description

Technical Field

[0001] The present invention relates to a reinforcing structure for a building structure.

Background Art

[0002] As a method for reinforcing the building structure against an increase in the weight of a building due to newly placing a solar panel on the roof or the like for an existing panel method building in which panels such as load-bearing panels are incorporated in the building structure, a method of replacing existing panels, a method of replacing existing braces included in the existing panels, a method of retrofitting new braces to existing panels without braces, etc. may be applied.

[0003] In the method of replacing existing panels, since the outer wall and the inner wall are integrated, it is necessary to remove up to the inner wall when replacing the existing panels, and there is a problem that the occupants are forced to evacuate.

[0004] On the other hand, in the method of retrofitting new braces, since field welding is generally applied during retrofitting, it becomes a fire-using operation, requiring curing for fire protection and posing a risk of fire.

[0005] From the above, when reinforcing a building structure, a reinforcing structure for a building structure that can eliminate various problems caused by field welding while not requiring the evacuation of occupants is desired.

[0006] Here, in Patent Document 1, a buckling-restrained brace incorporated as a diagonal brace or a strut in a wooden building constructed by assembling facing materials such as a frame structure or a 2x4 method, or a wooden panel method building, is proposed. This buckling-restrained brace has a core material and a pair of restraint materials arranged along both surfaces of the core material, with the core material being made of steel and the pair of restraint materials being made of wood.

Prior Art Documents

Patent Documents

[0007] [Patent Document 1] Japanese Patent Publication No. 2008-174932 [Overview of the Initiative] [Problems that the invention aims to solve]

[0008] While the buckling-restrained brace described in Patent Document 1 is suitable for application to wooden panel construction buildings, Patent Document 1 does not disclose a means to resolve the above-mentioned problem, namely, a means to eliminate various problems caused by on-site welding while reinforcing the building frame without requiring occupants to vacate the premises.

[0009] This invention has been made in view of the above problems, and aims to provide a building frame reinforcement structure that can increase the structural strength of a building frame by resolving various problems caused by on-site welding, without requiring tenants to vacate the premises. [Means for solving the problem]

[0010] To achieve the above objective, one embodiment of the building frame reinforcement structure according to the present invention is: A building frame reinforcement structure in which an existing panel is attached to a building frame composed of existing beams above and below and existing columns on the left and right, and the existing panel is an existing load-bearing panel having at least two existing vertical rails, at least two existing horizontal rails in the upper and lower sections, and one or two existing braces that intersect, A new brace unit, consisting of one or two intersecting new braces and new gusset plates fixed to both ends of the new braces, is installed on the outdoor side of the existing load-bearing panel in the area where the existing braces have been removed, and the new gusset plates are joined to at least the existing vertical battens by fasteners.

[0011] According to this embodiment, a new brace unit consisting of one or two intersecting new braces and new gusset plates fixed to both ends of the new braces is installed on the outdoor side of the existing load-bearing panel in the area where the existing braces constituting the existing load-bearing panel are to be removed, and the new gusset plates are joined to at least the existing vertical battens by fasteners, thereby increasing the load-bearing capacity of the existing building's frame while eliminating the need for the existing building's occupants to vacate the premises and for on-site welding.

[0012] Here, "the newly installed gusset plate is joined to at least the existing vertical battens" means that the newly installed gusset plate is joined to the existing vertical battens, to both the existing vertical and horizontal battens, and, as explained below, also to the existing columns. Furthermore, fasteners (dry fasteners) used to join the newly installed gusset plate to the existing vertical battens, etc., include screws, bolts, and other fasteners, including self-drilling tapping screws.

[0013] Furthermore, other embodiments of the building frame reinforcement structure according to the present invention include: A reinforcing structure for a building frame, wherein an existing panel is attached to the building frame, which is composed of existing beams above and below and existing columns on the left and right, and the existing panel is an existing non-load-bearing panel having at least two existing vertical bars and at least two existing horizontal bars in the upper and lower sections, A new brace unit, consisting of one or two intersecting new braces and new gusset plates fixed to both ends of the new braces, is installed on the outdoor side of the existing non-load-bearing panel, and the new gusset plates are joined to at least the existing vertical battens by fasteners.

[0014] According to this embodiment, a new brace unit consisting of one or two intersecting new braces and new gusset plates fixed to both ends of the new braces is installed on the outdoor side of the existing non-load-bearing panel, and the new gusset plates are joined to at least the existing vertical battens by fasteners, thereby forming a reinforcing structure for the building frame of the existing building without requiring the occupants of the existing building to vacate or on-site welding.

[0015] Furthermore, other embodiments of the building frame reinforcement structure according to the present invention include: The newly installed gusset plate is characterized in that it is attached to the existing column in addition to the existing vertical support using fasteners.

[0016] According to this embodiment, the newly installed gusset plate is joined to the existing columns in addition to the existing vertical supports by fasteners, thereby further increasing the joint strength between the newly installed gusset plate and the building frame.

[0017] Furthermore, other embodiments of the building frame reinforcement structure according to the present invention include: The existing vertical support is characterized in that it is joined to the existing column by fasteners via load distribution plates at its upper and lower ends.

[0018] According to this embodiment, since the existing vertical members are joined to the existing columns via load distribution plates at their upper and lower ends using fasteners, it is possible to firmly integrate the existing vertical members and existing columns while suppressing stress concentration at arbitrary fasteners and preventing damage to stress concentration points on the existing vertical members. Here, the fasteners used to join the load distribution plates to the existing vertical members and existing columns can include screws, bolts, and other fasteners, including self-drilling tapping screws.

[0019] Furthermore, other embodiments of the building frame reinforcement structure according to the present invention include: The aforementioned existing load-bearing panel or the aforementioned existing non-load-bearing panel further includes an existing horizontal bar in the middle section. The newly installed brace is characterized by being connected to the existing horizontal bar in the middle section at an intermediate position.

[0020] According to this aspect, since the intermediate position of the newly installed brace is connected to the existing horizontal cross member provided in the existing load-bearing panel or the existing non-load-bearing panel, the newly installed brace can be more firmly joined to the existing load-bearing panel and the existing non-load-bearing panel.

[0021] Moreover, another aspect of the building structure reinforcement structure according to the present invention is The existing panels include the existing load-bearing panel and the existing non-load-bearing panel without the existing brace, and the existing load-bearing panel and the existing non-load-bearing panel are provided side by side with respect to the building structure. The one or two intersecting newly installed braces are spanned so as to straddle the existing non-load-bearing panel and the existing load-bearing panel.

[0022] According to this aspect, when incorporated in a manner in which the existing load-bearing panel and the existing non-load-bearing panel are provided side by side with respect to the building structure, the newly installed brace is spanned so as to straddle the existing load-bearing panel and the existing non-load-bearing panel, whereby the plurality of existing panels can be made highly load-bearing with as few newly installed braces and fasteners as possible, and the construction load can be reduced.

[0023] Moreover, another aspect of the building structure reinforcement structure according to the present invention is A plurality of the existing non-load-bearing panels are provided side by side with respect to the building structure. The one or two intersecting newly installed braces are spanned so as to straddle the plurality of existing non-load-bearing panels.

[0024] According to this aspect, when incorporated in a manner in which a plurality (for example, two) of the existing non-load-bearing panels are provided side by side with respect to the building structure, the newly installed brace is spanned so as to straddle the plurality of existing non-load-bearing panels, whereby the plurality of existing panels can be made highly load-bearing with as few newly installed braces and fasteners as possible, and the construction load can be reduced.

[0025] Furthermore, other embodiments of the building frame reinforcement structure according to the present invention include: When the module width is set to 1P, the newly installed brace, either one or two intersecting braces, is characterized by being spanned across the existing vertical supports on the left and right, which have widths of 1P, 1.5P, or 2P.

[0026] According to this embodiment, since the newly installed braces are spanned across the existing left and right vertical battens having a width of 1P, 1.5P, or 2P, the existing panels with commonly used module widths can be effectively reinforced with the newly installed brace units, thereby effectively increasing the structural strength of the building frame.

[0027] For example, if two existing vertical supports form one existing load-bearing panel with a width of 2P, a new brace unit can be installed across the area where the existing brace of this 2P width is to be removed. Also, if two existing panels (an existing load-bearing panel and an existing non-load-bearing panel) are installed side by side, and both the existing non-load-bearing panel and the existing load-bearing panel are 1P wide, totaling a width of 2P, a new brace unit can be installed across these two existing panels with a width of 2P. [Effects of the Invention]

[0028] As can be understood from the above explanation, the building frame reinforcement structure of the present invention makes it possible to reinforce a building frame without requiring tenants to vacate the premises, while also eliminating various problems caused by on-site welding. [Brief explanation of the drawing]

[0029] [Figure 1] This is a front view of an example of a building frame before reinforcement by the reinforcing structure according to the first embodiment. [Figure 2] Figure 1 is a front view showing the building frame before reinforcement, with the existing braces removed. [Figure 3] This is a front view showing an example of a new brace unit installed in the area where an existing brace was removed. [Figure 4]This is a front view of an example of a reinforcing structure for a building frame according to the first embodiment. [Figure 5] This is an enlarged view of section V in Figure 4. [Figure 6] This is a view in the direction of arrow VI in Figure 4. [Figure 7] This is a front view of an example of a building frame before reinforcement by the reinforcing structure according to the second embodiment. [Figure 8] Figure 7 is a front view showing the building frame before reinforcement, with the existing braces removed. [Figure 9] This is a front view showing another example of a new brace unit installed in the area where an existing brace was removed. [Figure 10] This is a front view of an example of a reinforcing structure for a building frame according to the second embodiment. [Modes for carrying out the invention]

[0030] The following describes an example of a reinforcing structure for a building frame according to each embodiment, with reference to the attached drawings. In this specification and the drawings, substantially identical components may be denoted by the same reference numerals to avoid redundant explanations.

[0031] [Reinforcement structure for building frame according to the first embodiment] First, an example of a building frame reinforcement structure according to the first embodiment will be described with reference to Figures 1 to 6. Here, Figure 1 is a front view of an example of a building frame before reinforcement by the reinforcement structure according to the first embodiment. Figure 2 is a front view showing the building frame before reinforcement shown in Figure 1 with the existing braces removed, and Figure 3 is a front view showing an example of a new brace unit installed in the area where the existing braces were removed. Furthermore, Figure 4 is a front view of an example of a building frame reinforcement structure according to the first embodiment, Figure 5 is an enlarged view of section V in Figure 4, and Figure 6 is a view in the direction of arrow VI in Figure 4.

[0032] The building frame 10 shown in the illustration is, for example, a frame that makes up a two-story lightweight steel building, and is being reinforced against an increase in the building's weight due to, for example, the installation of solar panels. However, the building to be reinforced may be a one-story building or a building with three or more floors. Furthermore, there are various reasons for reinforcing an existing building that may arise from renovations of the existing building, and seismic reinforcement is one of them.

[0033] The building frame 10 in the illustrated example is a first-floor frame and includes an upper existing beam 11 made of H-shaped steel or the like, a lower existing foundation beam 12 also made of H-shaped steel or the like, and a pair of existing columns 13A and 13B made of square steel pipe or the like. Note that the building frame to be reinforced may also be a frame on an upper floor, such as the second floor.

[0034] The building frame 10 incorporates existing load-bearing panels 20 (an example of existing panels), and therefore, the building equipped with the building frame 10 shown in the illustration is an existing panel construction building.

[0035] The existing load-bearing panel 20 is equipped with two existing vertical members 21, three existing horizontal members 22, 23, and 24 located in the upper, lower, and middle sections, and two existing braces 25 that intersect. Existing gusset plates 26 are welded to both ends of the existing braces 25, and the existing gusset plates 26 are welded to the existing vertical members 21 and the existing horizontal members 22 and 23. Note that the existing braces provided in the existing load-bearing panel may be a single brace located at one diagonal position.

[0036] The existing load-bearing panels 20 are incorporated into the building frame 10 by fastening the existing vertical members 21 and existing horizontal members 22 and 23 of the existing load-bearing panels 20 to the pair of existing columns 13 and the existing upper and lower beams 11 and 12 of the building frame 10 using fasteners not shown (bolts, screws, nails, etc.).

[0037] Here, the existing vertical bars 21 and existing horizontal bars 22, 23, and 24 are formed from shaped steel materials such as channel steel and angle steel, while the existing braces 25 and existing gusset plates 26 are formed from steel plates or the like.

[0038] Furthermore, the existing load-bearing panel 20 in the illustrated example has a width t1 of 2P (where 1P represents the module width, for example, 910 mm), and a height t2 in the range of, for example, 2400 mm to 2800 mm. Here, the width t1 of the existing load-bearing panel 20 can be various other widths besides 2P in the illustrated example, such as 0.5P, 1P, 1.5P, etc.

[0039] As shown in Figure 2, in the existing load-bearing panel 20, the existing gusset plate 26 is left in place, and the end region of the existing brace 25 is cut, thereby creating a space above and below the existing horizontal rail 24 in the middle section that will become a removal region 28.

[0040] More specifically, the existing brace 25 will be cut and removed from the outside (outdoor side) of the existing building, eliminating the need for residents to vacate the premises during construction.

[0041] A new brace unit 30, as shown in Figure 3, is installed in this removal area 28.

[0042] The newly installed brace unit 30 has two intersecting newly installed braces 31 and newly installed gusset plates 34 fixed to both ends of each newly installed brace 31 by welding or the like. Each newly installed brace 31 is constructed by connecting the ends of two divided brace pieces 32 with connecting pieces 33. Alternatively, the newly installed brace unit may have a single newly installed brace and newly installed gusset plates at both ends of it.

[0043] Here, both the divided brace piece 32 and the connecting piece 33 are formed from steel plates. Furthermore, the newly installed brace may be formed from a single continuous steel plate, in addition to the configuration shown in the illustration, which consists of two divided brace pieces 32.

[0044] The width of the new brace unit 30 installed in the area 28 where the existing brace 25 of the existing load-bearing panel 20 is removed is 2P, the same as the existing load-bearing panel 20.

[0045] As shown in Figure 4, the new gusset plates 34 of the new brace unit 30 are installed from the outside to each corner of the existing load-bearing panel 20, and as shown in Figure 5, the building frame reinforcement structure 100 is formed by joining the existing columns 13A and 13B, in addition to the existing vertical battens 21 and the upper and lower existing horizontal battens 22 and 23, from the outside using multiple self-drilling tapping screws 40 (an example of fasteners).

[0046] In this way, by attaching the new brace units 30 to the existing panel 20 components and existing columns 13 from the outside, the entire construction of the reinforcing structure 100 can be carried out on the outside, eliminating the need for residents to vacate the premises during construction.

[0047] Furthermore, by connecting the newly installed gusset plate 34 to the existing column 13 in addition to the existing load-bearing panel 20 components, the reinforcing effect of the newly installed brace unit 30 on the building frame 10 can be further enhanced.

[0048] In the reinforcing structure 100, the intersection 36 of the two newly installed braces 31 is fastened to the existing horizontal bar 24 in the middle section with self-drilling tapping screws or bolts.

[0049] In the reinforcement structure 100, in addition to installing the new brace unit 30, as shown in Figure 6, the existing vertical members 21 and existing columns 13 are fastened to each other via a load distribution plate 50 using multiple self-drilling tapping screws 40 (an example of fasteners), thereby achieving a stronger integration of the existing vertical members 21 and existing columns 13.

[0050] For example, when connecting an existing vertical rail 21 and an existing column 13 using only multiple self-drilling tapping screws 40, stress may concentrate on any of the self-drilling tapping screws 40, potentially causing damage to the stress-concentrated points in the existing vertical rail 21 and existing column 13. In contrast, by applying a load-distributing plate 50 to connect the existing vertical rail 21 and existing column 13, as shown in the illustrated example, the concentration of stress on any of the self-drilling tapping screws 40 can be suppressed.

[0051] Figure 6 shows a state in which a load distribution plate 50 is installed below the existing vertical bar 21, but a load distribution plate 50 can also be installed above the existing vertical bar 21 in the same manner. In addition to installing one load distribution plate 50 each above and below, multiple load distribution plates 50 may be installed at intervals in the vertical direction.

[0052] The load-distributing plate 50 and multiple self-drilling tapping screws 40 further strengthen the integration of the existing vertical members 21 and existing columns 13. Combined with the fact that the newly installed brace unit 30 is joined to the existing vertical members 21 and the upper and lower existing horizontal members 22 and 23, as well as to the existing columns 13, this creates a reinforced structure 100 in which the entire frame is more firmly integrated.

[0053] According to the illustrated example of reinforcement structure 100 formed by a series of construction methods, a new brace unit 30 consisting of one or two intersecting new braces 31 and new gusset plates 34 fixed to both ends of the new braces 31 is installed on the outdoor side of the existing load-bearing panel 20 in the area 28 where the existing braces 25 constituting the existing load-bearing panel 20 are to be removed, and the new gusset plates 34 are joined to the existing vertical battens 21 and existing horizontal battens 22, 23 by fasteners 40, thereby increasing the load-bearing capacity of the existing building frame 10 without requiring the occupants of the existing building to vacate or on-site welding to be performed.

[0054] Here, the illustrated example shows a configuration in which a new brace unit 30 is installed in the area 28 where the existing brace 25 is removed, in a building frame 10 that incorporates an existing load-bearing panel 20 equipped with an existing brace 25. However, for example, in a building frame that incorporates an existing non-load-bearing panel that does not have an existing brace, the new brace unit 30 shown in the illustration may be installed from the outside to the existing non-load-bearing panel to form a reinforcing structure (not shown).

[0055] [Reinforcement structure for building frame according to the second embodiment] Next, an example of a building frame reinforcement structure according to the second embodiment will be described with reference to Figures 7 to 10. Here, Figure 7 is a front view of an example of a building frame before reinforcement by the reinforcement structure according to the second embodiment. Figure 8 is a front view showing the building frame before reinforcement shown in Figure 7 with the existing braces removed, and Figure 9 is a front view showing an example of a new brace unit installed in the area where the existing braces were removed. Furthermore, Figure 10 is a front view of an example of a building frame reinforcement structure according to the second embodiment.

[0056] The building frame 10A to be reinforced in the illustrated example differs from the building frame 10, which incorporates only existing load-bearing panels 20, in that it has both existing non-load-bearing panels 60 and existing load-bearing panels 20 installed side by side.

[0057] More specifically, it is an existing panel construction building in which, of the three existing columns 13 that make up the building frame 10A, an existing non-load-bearing panel 60 is incorporated between the existing columns 13A and 13C on the left and in the center, and an existing load-bearing panel 20 is incorporated between the existing columns 13C and 13B in the center and on the right.

[0058] The existing load-bearing panel 20 has the configuration already explained with reference to Figure 1, but in the example shown in Figure 7, the width t4 of the existing load-bearing panel 20 is 1P. Note that the width t4 can be various other widths such as 0.5P or 1.5P.

[0059] On the other hand, the existing non-load-bearing panel 60 is equipped with two existing vertical supports 61 and three existing horizontal supports 62, 63, and 64 located in the upper, lower, and middle sections. In the illustrated example, the width t3 of the existing non-load-bearing panel 60 is 0.5P, but the width t3 can be various other widths such as 1P or 1.5P.

[0060] As shown in Figure 8, in the existing load-bearing panel 20, by cutting the end region of the existing brace 25, a space to be removed 28 is formed above and below the existing horizontal rail 24 in the middle section.

[0061] More specifically, the existing brace 25 will be cut and removed from the outside (outdoor side) of the existing building, eliminating the need for residents to vacate the premises during construction.

[0062] A new brace unit 30A, as shown in Figure 9, is installed in this removal area 28. The new brace unit 30A has the same configuration as the new brace unit 30 already described with reference to Figure 3, but its width is 1.5P, which is the sum of the width t3 (0.5P) of the existing non-load-bearing panel 60 and the width t4 (1P) of the existing load-bearing panel 20.

[0063] As shown in Figure 10, the new gusset plates 34 of the new brace unit 30A are installed from the outside to the upper and lower corners on the left side of the existing non-load-bearing panel 60 and the upper and lower corners on the right side of the existing load-bearing panel 20. In addition to the existing vertical battens 61, 21 and the existing upper and lower horizontal battens 62, 63, 22, 23, the new brace unit 30A is connected to the existing columns 13A, 13B from the outside using multiple self-drilling tapping screws 40 (an example of fasteners), thereby forming a reinforcement structure 200 for the building frame.

[0064] In other words, in the illustrated example of the reinforcement structure 200, the newly installed brace unit 30A is installed across both the existing non-load-bearing panel 60 and the existing load-bearing panel 20.

[0065] According to the illustrated example of the reinforcement structure 200 formed by a series of construction methods, a new brace unit 30A consisting of one or two intersecting new braces 31 and new gusset plates 34 fixed to both ends of the new braces 31 is installed on the outdoor side of the area 28 where the existing braces 25 constituting the existing non-load-bearing panels 60 and existing load-bearing panels 20 are to be removed. The new gusset plates 34 are joined to the existing vertical battens 61, 21 and existing horizontal battens 62, 63, 22, 23 by fasteners 40, thereby increasing the load-bearing capacity of the existing building frame 10A while eliminating the need for occupants to vacate the building and on-site welding.

[0066] Furthermore, in the building frame 10A, when multiple existing panels 60,20 are installed side by side, the new brace unit 30A is spanned across the multiple existing panels 60,20, thereby increasing the load-bearing capacity of the multiple existing panels 60,20 with as few new braces 31 and fasteners 40 as possible, and reducing the construction load.

[0067] Here, the illustrated example shows a configuration in which an existing non-load-bearing panel 60 and an existing load-bearing panel 20 are installed side by side. However, in configurations in which multiple (for example, two) existing load-bearing panels 20 are installed side by side, or in configurations in which multiple (for example, two) existing non-load-bearing panels 60 are installed side by side, a reinforcing structure in which the newly installed brace unit 30A is spanned across the panels, as shown in the illustrated example, may also be applied.

[0068] Furthermore, other embodiments may be used in which other components are combined with the configurations listed in the above embodiments, and the present invention is not limited in any way to the configurations shown herein. In this regard, modifications can be made without departing from the spirit of the present invention, and can be appropriately determined according to the application form. [Explanation of Symbols]

[0069] 10,10A: Building frame 11: Existing beams 12: Existing beams (existing foundation) 13, 13A, 13B, 13C: Existing columns 20: Existing load-bearing panels (existing panels) 21: Existing vertical supports 22: Existing horizontal bar on the upper level (existing horizontal bar) 23: Existing horizontal bar on the lower level (existing horizontal bar) 24: Existing horizontal bar in the middle section (existing horizontal bar) 25: Existing braces 28: Removal area 30,30A: Newly installed brace unit 31: Newly installed brace 32: Split brace piece 33: Connecting piece 34: Newly installed gusset plate 36: Intersection 40: Fasteners (self-tapping screws with drill bits) 50: Load distribution plate 60: Existing non-load-bearing panels (existing panels) 61: Existing vertical supports 62: Existing horizontal bar on the upper level (existing horizontal bar) 63: Existing horizontal bar on the lower level (existing horizontal bar) 64: Existing horizontal bar in the middle section (existing horizontal bar) 100,200: Reinforcement structure (reinforcement structure for building frame)

Claims

1. A building frame reinforcement structure in which an existing panel is attached to a building frame composed of existing beams above and below and existing columns on the left and right, and the existing panel is an existing load-bearing panel having at least two existing vertical rails, at least two existing horizontal rails in the upper and lower sections, and one or two existing braces that intersect, A reinforcing structure for a building frame, characterized in that a new brace unit, consisting of one or two intersecting new braces and new gusset plates fixed to both ends of the new braces, is installed on the outdoor side of the existing load-bearing panel in the area where the existing braces have been removed, and the new gusset plates are joined to at least the existing vertical battens by fasteners.

2. A building frame reinforcement structure in which existing panels are attached to an existing frame composed of existing beams above and below and existing columns on the left and right, and the existing panels are existing non-load-bearing panels having at least two existing vertical supports and at least two existing horizontal supports in the upper and lower sections, A reinforcing structure for a building frame, characterized in that a new brace unit, consisting of one or two intersecting new braces and new gusset plates fixed to both ends of the new braces, is installed on the outdoor side of the existing non-load-bearing panel, and the new gusset plates are joined to at least the existing vertical battens by fasteners.

3. The reinforcing structure for a building frame according to claim 1 or 2, characterized in that the newly installed gusset plate is joined to the existing column in addition to the existing vertical battens by fasteners.

4. The reinforcing structure for a building frame according to claim 1 or 2, characterized in that the existing vertical members are joined to the existing columns by fasteners via load distribution plates above and below them, respectively.

5. The aforementioned existing load-bearing panel or the aforementioned existing non-load-bearing panel further includes an existing horizontal bar in the middle section, The reinforcing structure for a building frame according to claim 1 or 2, characterized in that the newly installed brace is connected to the existing horizontal bar in the middle section at an intermediate position.

6. The existing panels include the existing load-bearing panels and existing non-load-bearing panels that do not have existing braces, and the existing load-bearing panels and existing non-load-bearing panels are installed side by side with respect to the building frame. The reinforcing structure for a building frame according to claim 1, characterized in that the one or two newly installed braces are spanned across the existing non-load-bearing panel and the existing load-bearing panel.

7. Multiple existing non-load-bearing panels are installed alongside the aforementioned building frame. The reinforcing structure for a building frame according to claim 2, characterized in that the one or two intersecting newly installed braces are spanned across a plurality of the existing non-load-bearing panels.

8. The reinforcing structure for a building frame according to claim 1 or 2, characterized in that, when the module width is 1P, the one or two newly installed braces are spanned across the left and right existing vertical battens having a width of 1P, 1.5P, or 2P.

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