JP4203466B2 - Reinforced frame - Google Patents

Description

  The present invention relates to a reinforcing frame installed at an opening of an existing frame.

  Conventionally, as a reinforcing frame to improve the rigidity and proof strength of a frame composed of structural members such as columns, beams and walls of an existing building (hereinafter referred to as “existing frame”), A structure comprising a frame body to be attached and a brace material disposed in a plane (hereinafter referred to as “composition surface”) surrounded by the frame body (also referred to as “framed brace”). Is known (see, for example, Patent Document 1 and Patent Document 2).

JP-A-9-317198 (FIG. 1) Japanese Patent Laid-Open No. 11-71906 (FIG. 1)

  By the way, since the reinforcement frames of Patent Document 1 and Patent Document 2 are both composed of heavy steel frames or steel members, the overall weight becomes very large. After all, it will be carried by the existing frame to be reinforced. In other words, even if a reinforced frame is installed on an existing frame, the weight of the reinforced frame will act on the existing frame, and in the event of an earthquake, an inertial force proportional to the weight of the reinforced frame will act on the existing frame. Therefore, the reinforcing effect is reduced by that amount. In other words, in the conventional reinforcing frame composed of heavy members, the substantial reinforcing effect is reduced by the increase in weight.

  Moreover, in the reinforcement frame of patent document 1 and patent document 2, since several H-section steel which comprises a frame and a brace material is joined by welding, when there exists an error in the dimension of the existing frame, for example There is also a problem that the dimensions of the reinforcing frame cannot be adjusted at the construction site.

  In addition, in the reinforcing frame of Patent Document 1, when attaching to an existing frame, it is necessary to drive anchor bolts into the inner peripheral surface of the opening of the existing frame (that is, the side surface of the column, the upper and lower surfaces of the beam, etc.). Such an anchor bolt driving operation is accompanied by noise and vibration, which causes great discomfort to residents and users of existing buildings. Furthermore, when the existing frame is a reinforced concrete structure, it is necessary to drive anchor bolts away from the reinforcing bars embedded in the concrete. However, the positions of the reinforcing bars may differ from the positions shown in the design drawings. You have to investigate carefully, taking time and effort. In addition, cracks may occur when anchor bolts are driven into concrete.

  On the other hand, the reinforcing frame of Patent Document 2 is integrally fixed to the existing frame via a grout material filled between the outer peripheral surface and the inner peripheral surface of the existing frame. Although the concerns in the frame are resolved, the flange of the H-shaped steel faces the inner peripheral surface of the existing frame (that is, the weak axis of the H-shaped steel is parallel to the structural surface of the reinforced frame) Therefore, the surface of the structure is made to face the inner peripheral surface of the existing frame (that is, the weak frame of the H-shaped steel is perpendicular to the frame) in comparison with the reinforcing frame of Patent Document 1. There is a problem that buckling tends to occur outward. In addition, when the weak axis of the H-section steel that constitutes the brace material is perpendicular to the structural surface of the reinforcing frame, buckling in the in-plane direction of the structural surface is likely to occur, so buckling is prevented. It is necessary to provide. In any case, when the reinforcing frame is configured using the H-shaped steel, a difference occurs in the buckling strength between the in-plane direction and the out-of-plane direction of the surface. And H-shaped steel having dimensions and strength that does not buckle in the weak axis direction will be adopted. However, in such H-shaped steel, the buckling strength in the strong axis direction becomes excessive, which is economical. Not right.

  In addition, when non-structural members such as existing sashes, waist walls, and hanging walls are removed when installing a reinforcing frame, it is natural that after installing the reinforcing frame, a new sash, waist wall, hanging wall, etc. However, since it takes time and labor for the installation work, the construction period becomes longer and the repair cost also increases.

  It is an object of the present invention to provide a reinforcing frame capable of comprehensively solving the various problems described above, has a substantial substantial reinforcing effect, and can easily and quickly perform installation work. The first challenge is to provide a reinforced frame that can be performed and that is less susceptible to noise and vibration during installation work, and has a high seat in both in-plane and out-of-plane directions. The second problem is to provide a reinforced frame having flexural strength, and in addition, the third problem is to provide a reinforced frame that can be easily attached to a sash, a waist wall or a hanging wall. To do.

The present invention devised to solve such problems includes a frame that is fixed to an opening of an existing frame via a grout material, and a brace material that is disposed within the frame surface of the frame. The frame is configured by combining a plurality of frame members made of an aluminum alloy extruded profile into a rectangular frame shape, and the brace material is an extruded aluminum alloy having a closed cross section. Ri Do from profile, and an end portion of the brace by a pair of connecting plates attached to the front and rear surfaces of the frame member is held.

  According to the reinforced frame according to the present invention, the frame material and the brace material constituting the frame are made of aluminum alloy that is light in weight but high in strength. Therefore, it is added to the existing frame compared to the conventional reinforced frame using a steel frame or the like. The load (self-weight and inertial force of the reinforcing frame) is reduced. That is, according to this reinforcing frame, it is possible to improve the substantial reinforcing effect as compared with a conventional reinforcing frame made of a steel frame such as H-shaped steel.

  Further, according to this reinforcing frame, since its weight is light, its transportation and handling become easy, and as a result, its installation work can be performed easily and quickly. Furthermore, since the reinforcing frame is lightweight, it is possible to perform the installation work using a small crane or the like with few restrictions on use.

  In addition, aluminum alloys have the property of being difficult to corrode, which makes it easier to maintain and maintain the reinforcing frame, and also because the color and texture of the material itself can easily match the interior and exterior materials. It is also possible to omit painting and the like. In addition, since the aluminum alloy is also suitable for recycling, a secondary effect that it does not become industrial waste even if the reinforcing frame is removed can be expected.

  Furthermore, since each frame member and brace member are extruded shapes, the processing accuracy is high, and in addition, the manufacturing cost can be reduced.

  In addition, since the cross section of the brace material is a closed cross section, it is difficult to buckle in both the in-plane direction and the out-of-plane direction of the frame. In addition, when the brace material has a closed cross section, it has a clean appearance, so that it can be expected to give the viewer a lighter and more refined impression than H-shaped steel that gives a rugged impression.

  Furthermore, since the reinforcing frame is fixed to the opening of the existing frame via the grout material, there is no need to drive anchor bolts into the inner peripheral surface of the existing frame. That is, even when an existing building is reinforced while being in service, the generated noise and vibration are small and do not give great discomfort to residents and users of the building. Furthermore, since an anchor bolt is not required, the existing frame is not damaged.

In the reinforcing frame according to the present invention, since the structure in which the ends of the brace material are held by a pair of connection plates attached to the front surface and the rear surface of the frame material , the brace material and the frame material are used. Will be firmly joined.

  In the reinforcing frame according to the present invention, a concave groove that can accommodate the head of the bolt is formed along the longitudinal direction on the front surface and the rear surface of the brace material, and the head is formed in the concave groove. Each of the connection plates may be fixed to the brace material by a housed bolt and a nut that is screwed to the shaft portion. If it does in this way, it will become possible to adjust the fixed position of a brace material only by sliding a volt | bolt along the concave groove of a brace material. Therefore, for example, even when there is an assembly error in the frame, the error can be easily corrected. If at least one of the contact surface of the connection plate and the contact surface of the brace material is subjected to a friction surface treatment, the connection plate and the brace material can be firmly bonded.

  Here, as the frame member, for example, an extruded shape member having a closed cross section can be used. If it does in this way, it will become difficult to buckle in both the in-plane direction of a composition surface, and an out-of-plane direction. In addition, when the frame material has a closed cross section, it has a clean appearance, and therefore, it can be expected to give a lighter and more refined impression to the viewer than H-shaped steel that gives a rugged impression.

  When using a frame member with a closed cross section, a groove is formed on the front surface and the rear surface of the frame member along the longitudinal direction to accommodate the head of the bolt. Each connection plate may be fixed to the frame member by a bolt that houses the head and a nut that is screwed to the shaft. If it does in this way, it will become possible to adjust the fixed position of a connection board only by sliding a volt | bolt along the concave groove of a frame material. Therefore, for example, even when there is an assembly error in the frame, the error can be easily corrected. If at least one of the contact surface of the connection plate and the contact surface of the frame member is subjected to a friction surface treatment, the connection plate and the frame member can be joined more firmly.

  Further, in the reinforcing frame according to the present invention, the frame members forming the corners of the frame body are attached to each other via an attachment plate attached so as to straddle one end and the other end. You may connect. Here, in the case of using the frame material having the above-described concave groove, the attachment plate is attached to the frame by a bolt whose head is accommodated in the concave groove of the frame material and a nut screwed to the shaft portion. It is good to fix to the material. If it does in this way, it will become possible to adjust the fixed position of an attachment board only by sliding a volt | bolt along the concave groove of a frame material. That is, since the size of the frame can be adjusted, for example, even if there is an error in the dimensions of the existing frame, the error can be easily absorbed. If at least one of the contact surface of the attachment plate and the contact surface of the frame member is subjected to a friction surface treatment, the attachment plate and the frame member can be joined more firmly.

  Here, when the connection plate described above is arranged so as to straddle one end and the other end of the two frame members forming the corners of the frame, the connection plate is It will also play a role as an attachment plate.

  In the reinforcing frame according to the present invention, a plurality of ridges may be formed along the longitudinal direction on the surface of each frame member facing the existing frame. If it does in this way, since the adhesion strength with a grout material increases, the reinforcement effect of a reinforcement frame can be improved further.

  Furthermore, in the present invention, at least one of the plurality of frame members may be provided with a support portion for supporting at least one of the sash, the waist wall, and the hanging wall. If it does in this way, it will become possible to attach a sash, a waist wall, a vertical wall, etc. easily.

  According to the reinforcing frame according to the present invention, the substantial reinforcing effect is high, the installation work can be performed easily and quickly, and noise and vibration are hardly generated during the installation work. Furthermore, according to the reinforced frame according to the present invention, it is possible to provide high buckling strength in both the in-plane direction and the out-of-plane direction of the frame structure, and in addition, the sash, the waist wall, and the hanging wall Walls can be easily attached.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings. Here, “upper and lower”, “left and right”, and “front and rear” are based on the state in which the reinforcing frame is attached to the existing frame. Further, in the present embodiment, the case where the reinforcing frame is attached to the boundary portion between the room and the outdoor is illustrated, and the surface on the outdoor side is defined as the “front surface” and the surface on the indoor side is defined as the “rear surface”.

  As shown in FIGS. 1A and 1B, the reinforcing frame H according to the present embodiment includes a frame 1 fixed to an opening of an existing frame K via a grout material G, and a frame 1 And a brace material 2 disposed in the construction surface. Here, the existing frame K which concerns on this embodiment is comprised with the pillar K1 and the beam K2.

  In the present embodiment, the two brace members 2 and 2 are arranged in a V shape. However, the present invention is not limited to this, and may be arranged in an inverted V shape or a horizontal V shape. Alternatively, one brace material may be arranged along the diagonal line of the frame 1.

  As shown in FIG. 2, the frame 1 is configured by combining a plurality of frame members 10, 10,... In a rectangular frame shape. In the present embodiment, the frame body 1 is composed of a pair of left and right frame members 10 and 10 arranged in the vertical (up and down) direction and a pair of upper and lower frame members 10 and 10 arranged in the horizontal (left and right) direction. . In addition, when distinguishing the frame member 10 arranged in the vertical direction and the frame member 10 arranged in the horizontal direction, they are referred to as “vertical frame member 10A” and “horizontal frame member 10B”, respectively.

  The frame member 10 is made of an extruded shape made of an aluminum alloy having a closed cross section, and has a rectangular cross sectional shape as a whole as shown in FIG.

  A concave groove 11 capable of accommodating the head of the bolt B is formed on the front surface 10a of the frame member 10, and similarly, a concave groove capable of accommodating the head of the bolt B on the rear surface 10b of the frame member 10. 12 is formed. The concave groove 11 formed in the front surface 10a is a so-called T-groove including a wide portion 11a capable of accommodating the head of the bolt B and a narrow portion 11b capable of inserting the shaft portion of the bolt B. Keep the head of the undrawn. The same applies to the groove 12 formed in the rear surface 10b. Further, of the front surface 10a and the rear surface 10b of the frame member 10, the contact surface that comes into contact with the connection plates 3 and 4 or the attachment plate 5 shown in FIG. 1A is subjected to friction surface treatment (various blasting, zinc rich). Painting, sanding, etc.).

  Further, the frame member 10 includes a plurality of frames along the longitudinal direction of the frame member 10 on the surface facing the existing frame K (that is, the side surface of the column K1 shown in FIG. 1A or the upper and lower surfaces of the beam K2). Projections 13, 13,... Are formed.

  Moreover, as shown to (a) of FIG. 6, the both ends of the frame material 10 are cut | disconnected diagonally (45 degree | times in this embodiment) with respect to the axis line of the frame material 10, respectively, and the edge parts are mutually connected. When they are abutted, corner portions of the frame 1 that form a right angle are formed. Note that the ends of the frame members 10 and 10 may be in contact with each other or there may be a gap.

  The brace material 2 is made of an extruded shape made of an aluminum alloy having a closed cross section, and has a rectangular cross section as a whole as shown in FIG.

  The front surface 20a of the brace material 2 is formed with concave grooves 21 and 21 that can accommodate the heads of the bolts B. Similarly, the rear surface 20b of the brace material 2 can accommodate the heads of the bolts B. Concave grooves 22 and 22 are formed. The concave groove 21 formed on the front surface 20a is a so-called T-groove including a wide portion 21a capable of accommodating the head of the bolt B and a narrow portion 21b capable of inserting the shaft portion of the bolt B. Keep the head of the undrawn. The same applies to the groove 22 formed in the rear surface 20b. Moreover, the friction surface process is performed to the contact surface which contacts the connection plates 3 and 4 shown to (a) of FIG. 1 among the front surface 20a and the rear surface 20b of the brace material 2. FIG.

  As shown in FIG. 1A, the brace material 2 has one end connected to the corner of the frame 1 and the other end connected to the center lower portion of the frame 1. Specifically, in the present embodiment, the upper end portion of the brace material 2 is connected to the upper corner portion of the frame body 1 (that is, the intersection of the vertical frame material 10A and the upper horizontal frame material 10B), and the brace material 2 Is connected to the lower center portion of the frame 1 (that is, the central portion in the longitudinal direction of the lower horizontal frame member 10B).

  In the present embodiment, the upper end portion of the brace material 2 is a pair of connection plates (hereinafter referred to as “upper connection plates”) 3 and 3 attached to the front and rear surfaces of the upper corner of the frame 1. The lower end portion of the brace member 2 is held by a pair of connection plates (hereinafter referred to as “lower connection plates”) 4 and 4 attached to the front and rear surfaces of the center lower portion of the frame body 1. .

  The upper connection plate 3 is made of an aluminum alloy plate, and as shown in FIG. 5A, an L-shaped first region 31 joined to the corner of the frame 1 and the upper end of the brace material 2. 2nd area | region 32 to which a part is joined. In the present embodiment, not only the brace member 2 and the corner portion of the frame body 1 are connected by the upper connection plates 3, but also the vertical frame member 10A that forms the upper corner portion of the frame body 1 and The horizontal frame member 10B is connected.

  The first region 31 of the upper connection plate 3 plays the same role as the later-described attachment plate 5 (see FIG. 5C), and is the upper end of the vertical frame member 10A that forms the corners of the frame 1. It is attached so that a part and the edge part of the upper side horizontal frame material 10B may be straddled. In the first region 31, a plurality of frame member attachment holes 31a, 31a,... Arranged in an L shape along the vertical frame member 10A and the horizontal frame member 10B are formed. The shaft part of the bolt B in which the head is accommodated in the recessed grooves 11 and 12 (see FIG. 3A) of each frame member 10 is inserted into each frame member attachment hole 31a. In addition, the friction surface process is given to the contact surface (mainly the circumference | surroundings of each frame material attachment hole 31a) which contacts the front surface or rear surface of the frame material 10 among the 1st area | regions 31. FIG.

  The second region 32 of the upper connecting plate 3 is formed obliquely below the first region 31, and is attached to the inner peripheral side of the frame 1 when the first region 31 is attached to the corner of the frame 1. It protrudes (see (a) of FIG. 1). In the second region 32, a plurality of brace attachment holes 32a, 32a,... Arranged in two rows along the center line of the brace material 2 are formed. The shaft portion of the bolt B in which the head is accommodated in the recessed grooves 21 and 22 (see FIG. 4A) of each brace material 2 is inserted into each brace mounting hole 32a. In the second region 32, the contact surface (mainly around each brace mounting hole 32a) that contacts the front surface or the rear surface of the brace material 2 is subjected to a friction surface treatment.

  Each lower connection plate 4 is for connecting the brace material 2 and the central lower portion of the frame 1 as shown in FIG. 5 (b). In this embodiment, the lower connection plate 4 is made of an aluminum alloy plate material. Become. More specifically, each of the lower connection plates 4 has a first region 41 having a horizontally long rectangular shape joined to the central portion of the lower lateral frame member 10B and a second portion to which the lower end portion of the brace material 2 is joined. Region 42.

  The first region 41 of the lower connection plate 4 is attached to the central portion of the lower horizontal frame member 10B. In the first region 41, a plurality of frame member attachment holes 41a, 41a,... Aligned in a straight line along the lower horizontal frame member 10B are formed. The shaft portion of the bolt B in which the head is accommodated in the recessed grooves 11 and 12 (see FIG. 3A) of the lower horizontal frame member 10B is inserted into each frame member attachment hole 41a. In addition, the friction surface process is performed to the contact surface (mainly the circumference | surroundings of each frame material attachment hole 41a) which contacts the front surface or rear surface of the frame material 10 among the 1st area | regions 41. FIG.

  The second region 42 of the lower connection plate 4 is formed on the upper side of the first region 41, and protrudes to the inner peripheral side of the frame body 1 when the first region 41 is attached to the lower center of the frame body 1. (Refer to FIG. 1A). A plurality of brace attachment holes 42 a, 42 a,... Arranged in two rows along the center line of the brace material 2 are formed in the right and left portions of the second region 42. The shaft portion of the bolt B in which the head is accommodated in the recessed grooves 21 and 22 (see FIG. 4A) of each brace material 2 is inserted into each brace mounting hole 42a. In addition, the friction surface process is given to the surface (mainly the circumference | surroundings of each brace attachment hole 42a) which contacts the front surface or rear surface of the brace material 2 among the 2nd area | regions 42. FIG.

  By the way, as shown in FIG. 1A, the vertical frame member 10A and the horizontal frame member 10B constituting the frame body 1 have the above-described upper connection plate 3 at the corners on the upper side of the frame body 1. However, the lower corners of the frame 1 are connected to each other via an attachment plate 5 having an L shape. In the present embodiment, the attachment plate 5 is attached to each of the front surface and the rear surface of each frame member 10.

  As shown in FIG. 5 (c), each attachment plate 5 is made of an aluminum alloy plate material having an L shape, and straddles the lower end portion of the vertical frame member 10A and the end portion of the horizontal frame member 10B. Will be attached. Each attachment plate 5 is formed with a plurality of frame member mounting holes 51a, 51a,... Arranged in an L shape along the vertical frame member 10A and the horizontal frame member 10B. The shaft part of the bolt B in which the head is accommodated in the recessed grooves 11 and 12 (see FIG. 3A) of each frame member 10 is inserted into each frame member mounting hole 51a. In addition, a friction surface treatment is performed on the contact surface (mainly around each frame material attachment hole 51a) of the attachment plate 5 that contacts the front surface or the rear surface of the frame material 10.

  Next, an example of a method for assembling the reinforcing frame H will be described in detail. The reinforcing frame H can be assembled in advance in a work yard around a factory or a construction site, for example.

  First, in each of the two brace members 2, as shown in FIG. 6 (b), a predetermined number of bolts B, B,... Are provided in the front grooves 21 and 21 and the rear grooves 22 and 22, respectively. Is inserted from the end face side. Similarly, with respect to the frame 10, a predetermined number of bolts B, B,... Are inserted into the concave grooves 11 and 12 (see FIG. 3A) from the end face side. In addition, as the bolt B, in addition to a normal bolt that transmits a force by a shearing force, a high-strength bolt (including a Torcia type) that transmits a force by a frictional force can be used.

  Next, as shown to (a) of FIG. 6, vertical frame material 10A, 10A and horizontal frame material 10B, 10B are arrange | positioned at frame shape, the edge part of each vertical frame material 10A, and the end of each horizontal frame material 10B The frame body 1 is formed by abutting the portions, and two brace members 2 are arranged in a V shape on the inner peripheral side of the frame body 1.

  Subsequently, at the upper corner of the frame body 1, the pair of upper connection plates 3, 3 is sandwiched between the upper end of the vertical frame member 10 </ b> A, the end of the upper horizontal frame member 10 </ b> B, and the upper end of the brace member 2. The upper connection plates 3 are joined to the vertical frame member 10A, the horizontal frame member 10B, and the brace member 2, respectively. Specifically, for example, when the upper connecting plate 3 is joined to the brace material 2, as shown in FIG. 5 (a), the concave grooves 21 and 22 of the brace material 2 (FIG. 4 (a)). .. Are inserted into the brace mounting holes 32a of the upper connection plate 3, and nuts N are screwed into the shafts of the bolts B protruding from the brace mounting holes 32a. .

  Further, in the lower center portion of the frame body 1, as shown in FIG. 5B, a pair of lower portions is provided so as to sandwich the center portion of the lower horizontal frame member 10 </ b> B and the lower end portions of both brace members 2, 2. The side connection plates 4 and 4 are arranged, and the grooves 11 and 12 (see FIG. 3A) of the horizontal frame member 10B and the grooves 21 and 22 of the brace members 2 (see FIG. 4A). The lower connection plate 4 is joined to each of the lateral frame member 10B and the both brace members 2, 2 using bolts B, B,.

  Further, at the lower corner of the frame 1, as shown in FIG. 5 (c), a pair of so as to sandwich the lower end of the vertical frame member 10 </ b> A and the end of the lower horizontal frame member 10 </ b> B. While arranging the contact plates 5 and 5, the vertical frame is utilized by using bolts B, B,... Each attachment plate 5 is joined to each of the material 10A and the horizontal frame material 10B.

  Needless to say, the mounting order of the upper connection plate 3, the lower connection plate 4, and the attachment plate 5 may be changed as appropriate.

  Here, the width dimension and the height dimension of the frame 1 need to be slightly smaller than the width dimension and the height dimension of the opening of the existing frame K (see FIG. 1A). Then, since the bolt B held in the concave grooves 11 and 12 (see FIG. 3A) of each frame member 10 can be slid along the concave grooves 11 and 12, the upper connecting plate 3 and the accessory The fixing position of the contact plate 5 can be adjusted. That is, it is possible to adjust the dimensions of the frame 1 very easily. Further, since the bolt B held in the concave grooves 21 and 22 (see FIG. 4A) of each brace material 2 can be slid along the concave grooves 21 and 22, the size of the frame 1 It is very easy to cope with the adjustment of.

  Next, a procedure for attaching the reinforcing frame H to the opening of the existing frame K will be described with reference to FIGS. First, the reinforcing frame H is temporarily fixed to the opening of the existing frame K. The reinforcing frame H is assembled in advance in the vicinity of the factory or the construction site, and is built in the opening of the existing frame K using a crane or the like. The reinforcement according to the present embodiment mainly composed of an aluminum alloy. According to the frame H, since its weight is light, its transportation and handling become easy, and as a result, its installation work can be performed easily and quickly. In addition, since the reinforcing frame H is light, it is possible to perform the installation work using a small crane or the like with few restrictions on use.

  A plurality of spacers (not shown) are interposed between the inner peripheral surface of the existing frame K (the side surfaces of the columns K1 and the upper and lower surfaces of the beam K2) and the outer peripheral surface of the frame body 1.

  Next, a mold (not shown) is installed so as to block the space between the inner peripheral surface of the existing frame K and the outer peripheral surface of the frame 1, and then the inner peripheral surface of the existing frame K and the frame 1 The grout material G is filled in the space surrounded by the outer peripheral surface and the mold. If a structure in which the reinforcing frame H is integrally fixed to the existing frame K via the grout material G is adopted, there is no need to drive anchor bolts into the inner peripheral surface of the existing frame K, so that it is reinforced while in service. Even if it does, the noise and vibration which generate | occur | produce are small, and it does not give a great discomfort to the resident and user of a building. Furthermore, since an anchor bolt is not required, the existing frame K is not damaged.

  Here, the material of the grout material G is not particularly limited. For example, an epoxy resin or a cement-based material can be used.

  And according to the reinforcement frame H comprised as mentioned above, since the frame material 10 and the brace material 2 which comprise this were made from the aluminum alloy with high intensity | strength although being lightweight, the conventional reinforcement frame using a steel frame etc. Compared to the above, the load applied to the existing frame (the weight of the reinforcing frame and the inertial force) is reduced. That is, according to this reinforcement frame H, it becomes possible to improve the substantial reinforcement effect compared with the conventional reinforcement frame comprised with steel frames, such as H-section steel.

  In addition, since aluminum alloys have the property of being difficult to corrode, it is easy to maintain and manage the reinforcing frame H, and furthermore, the color tone and texture of the material itself are easily harmonized with the interior and exterior materials. Therefore, painting or the like can be omitted. In addition, since the aluminum alloy is also suitable for recycling, a secondary effect that the aluminum alloy does not become industrial waste even if the reinforcing frame H is removed can be expected.

  Furthermore, since each frame member 10 and the brace member 2 are formed into extruded shapes, the processing accuracy is high, and in addition, the manufacturing cost can be reduced.

  Further, since an extruded profile having a closed cross section is used as the frame member 10, it is difficult to buckle in both the in-plane direction and the out-of-plane direction of the frame 1. Further, since the cross section of the brace material 2 is also a closed cross section, it is difficult to buckle in either the in-plane direction or the out-of-plane direction of the frame 1. In addition, when the brace material 2 has a closed cross section, it has a clean appearance. Therefore, an effect of giving a lighter and more refined impression to the viewer can be expected as compared with H-shaped steel that gives a rugged impression.

  Further, the friction surface treatment is applied to the contact surfaces of the upper connection plate 3, the lower connection plate 4, and the attachment plate 5, and the friction surfaces are also applied to the contact surfaces of the frame member 10 and the brace member 2. Can be firmly joined.

  Moreover, since the upper connection plate 3 or the attachment plate 5 is attached to the front and rear surfaces of the joint portions of the frame members 10, 10, the joint strength is high. Similarly, the joint portion between the frame body 1 (frame member 10) and the brace member 2 is also provided with the upper connection plate 3 or the lower connection plate 4 on the front and rear surfaces thereof, so that the joint strength is high. high.

  In addition, it is good to set the joining strength of each member to the magnitude | size which a slip | slip produces by the shear force by a big earthquake, for example. According to the reinforcing frame H set in this way, the joint portion between the frame member 10 and the brace member 2 does not slip to the extent that the shearing force due to the small and medium earthquake acts, but on the other hand, the frame member 10 Since the bolt B can slide in the concave grooves 11 and 12 of the brace material 2 and the concave grooves 21 and 22 of the brace material 2, when a shearing force due to a large earthquake acts, Slip occurs at the joint between the material 10 and the brace material 2. That is, such a reinforcing frame H resists the shearing force by elastically deforming each of the frame member 10 and the brace member 2 in the case of a small and medium earthquake, and in the case of a large earthquake, the frame member 10. In addition to elastic deformation of the brace material 2, seismic energy is absorbed by deformation (displacement) of the joint portion thereof in an elastic-plastic manner. And, according to such a reinforcing frame H, it is possible to avoid an unnecessarily large load from acting on the frame member 10 and the brace member 2 due to the elastic-plastic deformation (displacement) of the joint portion. 10 and brace material 2 can be minimized in strength.

  It should be noted that the dimensions and shapes of the members constituting the reinforcing frame H may be changed. For example, as shown in FIG. 7, a support portion 15 for supporting the sash S and the hanging wall W may be provided on the frame member 10 (the horizontal frame member 10 </ b> B in FIG. 7). In the illustrated example, the frame member 16 is joined to the support portion 15, and the lower frame and the hanging wall W of the sash S are supported by the support portion 15 through the frame member 16. Reference symbol C in the figure is a cover that covers the frame material 10.

  The support portion 15 protrudes forward from the lower end portion on the front surface side of the horizontal frame member 10B, and the tip portion thereof has a horizontal U-shape.

  The frame material 16 is made of an aluminum alloy extruded shape, and protrudes from the hollow portion 16a, the rear surface of the hollow portion 16a, engages with the support portion 15, and protrudes from the lower surface of the hollow portion 16a. And a mounting portion 16c provided.

  And while fixing the lower frame of the sash S to the upper surface of the hollow part 16a of the frame material 16, and fixing the panel material used as the hanging wall W to the attaching part 16c, the engaging part 16b of the frame material 16 is used as the frame material. The sash S and the hanging wall W can be attached simply by engaging with the support portion 15 of the ten and fixing with a fixing tool such as a screw (not shown).

  Of course, the frame material 16 may be omitted and the sash S or the like may be directly fixed to the support portion 15.

  Further, the shape of the support portion 15 is not limited to the illustrated one, and may be changed as appropriate.

  Furthermore, although illustration is omitted, a support portion similar to the support portion 15 of the horizontal frame member 10B may be provided in the vertical frame member 10A.

  Moreover, in this embodiment, although the frame 1 using the frame material 10 of a closed cross section was illustrated, using the frame material 60 of the open cross section shown to (a) of FIG. a) see) may be configured. The frame member 60 includes a web 61 that faces the inner peripheral surface of the existing frame K, and a pair of flanges 62, 62 that stand up from the web 61. A rib 63 projecting toward the flange 62 is formed, and has a substantially C-shape as a whole.

  Each flange 62 is formed with a plurality of bolt insertion holes 62a through which the shaft portions of the bolts B are inserted at both ends thereof. In addition, although illustration is abbreviate | omitted about the frame material 60 to which the lower side connection board 4 (refer Fig.1 (a)) is joined, a some bolt insertion hole is formed also in the center part of the longitudinal direction of each flange 62. Has been.

  Here, the frame members 60 can be connected to each other using the upper connection plate 3 (see FIG. 1A) or the attachment plate 5 attached to the front and rear surfaces. In this case, The reinforcing plate 7 may be attached inside the groove of each frame member 60 (inside each flange 62) so as to straddle the end portion of the one frame member 60 and the end portion of the other frame member 60. . That is, the flange 62 of one frame member 60 and the flange 62 of the other frame member 60 may be sandwiched between the reinforcing plate 7 and the upper connection plate 3 or between the reinforcing plate 7 and the attachment plate 5.

  The reinforcing plate 7 has the same form as the attachment plate 5 shown in FIG. 5C and is not shown, but is made of an aluminum alloy plate material having an L shape, The contact surface is subjected to a friction surface treatment. The reinforcing plate 7 is also formed with a plurality of frame member mounting holes 71a arranged in an L shape.

  In order to connect the frame members 60 to each other, for example, in the case of the lower corner portion of the frame body 1 (see FIG. 1A), the attachment plate 5 so as to sandwich the end portion of the frame member 60. , 5 and further, the reinforcing plate 7 is arranged inside the groove of the frame member 60, the frame member mounting hole 71 a of the reinforcing plate 7 and the bolt insertion hole of the frame member 60 from the inside of the groove of the frame member 60. The bolt B may be inserted into the frame material mounting hole 51a of the 62a and the attachment plate 5, and the nut N may be screwed into the shaft portion of the bolt B protruding from the frame material attachment hole 51a of the attachment plate 5. The same applies when the frame members 60 forming the upper corners of the frame body 1 (see FIG. 1A) are connected to each other by the upper connecting plate 3 (see FIG. 1A) and the reinforcing plate 7. is there.

  Further, the brace material 2 is not limited to the illustrated one as long as it has a closed cross section, and for example, a brace material having a rectangular cross section, such as the brace material 8 shown in FIG. Furthermore, although illustration is abbreviate | omitted, you may use what has a polygonal cross section and a circular cross section.

(A) is a perspective view which shows the use condition of the reinforcement frame which concerns on this invention, (b) is the perspective view which expanded a part of (a). It is a front view of the reinforcement frame which concerns on this invention. (A) is X1-X1 sectional drawing of FIG. 2, (b) is X2-X2 sectional drawing of FIG. (A) is Y1-Y1 sectional drawing of FIG. 2, (b) is Y2-Y2 sectional drawing of FIG. (A) is an exploded perspective view in the upper corner of the frame, (b) is an exploded perspective in the lower center of the frame, and (c) is an exploded perspective in the lower corner of the frame. (A) is an exploded perspective view explaining the assembly procedure of a reinforcement frame, (b) is the perspective view which expanded the edge part Z of the brace material. It is sectional drawing which shows the modification of a frame material. (A) is sectional drawing which shows the other modification of a frame material, (b) is sectional drawing which shows the modification of a brace material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 10 Frame material 10A Vertical frame material 10B Horizontal frame material 11,12 Concave groove 2 Brace material 21,22 Concave groove 3 Upper connection plate (connection plate)
4 Lower connection plate (connection plate)
5 Attachment plate

Claims (7)

A frame fixed to the opening of the existing frame via a grout material;
A reinforcing frame comprising a brace material disposed within the frame surface;
The frame is configured by combining a plurality of frame members made of an extruded shape made of aluminum alloy into a rectangular frame shape,
The brace material is made of an extruded shape made of an aluminum alloy having a closed cross section,
An end of the brace material is held by a pair of connecting plates attached to the front and rear surfaces of the frame material. The front and rear surfaces of the brace material are formed with concave grooves that can accommodate the heads of the bolts along the longitudinal direction thereof, and the bolts having the heads accommodated in the concave grooves and the shafts thereof are screwed. The reinforcing frame according to claim 1 , wherein each connection plate is fixed to the brace material by a nut to be joined. Each of the frame members has a closed cross section,
The front and rear surfaces of each frame member are formed with concave grooves that can accommodate the heads of the bolts along the longitudinal direction thereof, and the bolts and the shafts in which the heads are accommodated in the concave grooves. The reinforcing frame according to claim 1 or 2 , wherein each connection plate is fixed to the frame member by a nut to be screwed together. The frame members forming the corners of the frame body are connected to each other via an attachment plate attached so as to straddle one end portion and the other end portion,
4. The reinforcement according to claim 3 , wherein the attachment plate is fixed to the frame member by a bolt having a head accommodated in the groove of the frame member and a nut screwed to the shaft portion thereof. Frame. The surface facing the said existing frame of each said frame material is formed with the some protruding item | line along the longitudinal direction, The Claim 1 thru | or 4 characterized by the above-mentioned. Reinforced frame. At least one of said plurality of frame members, a sash, any one of claims 1 to 5, characterized in that the support portion for supporting at least one spandrel and vertical wall is provided one Reinforcement frame as described in section. A frame fixed to the opening of the existing frame via a grout material;
A reinforcing frame comprising a brace material disposed within the frame surface;
The frame is configured by combining a plurality of frame members made of an extruded shape made of aluminum alloy into a rectangular frame shape,
The brace material is made of an extruded shape made of an aluminum alloy having a closed cross section,
A reinforcing frame for supporting at least one of a sash, a waist wall, and a vertical wall on at least one of the plurality of frame members.

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