JP4833866B2 - Separator mounting bracket - Google Patents

Description

  The present invention relates to a separator mounting bracket that can be utilized when adding a reinforcing structure for reinforcing an existing structure such as a column or a beam in an existing building.

  As a method of reinforcing existing structures such as columns and beams in existing buildings, patent literature cannot be disclosed, but a reinforcing strip-shaped iron plate parallel to the length direction of the existing structure is driven into the existing structure. Reinforcement by adding a concrete structure for reinforcement along the side of the existing structure so that it is placed at an appropriate distance from the side of the existing structure by a method such as fixing to an anchor and enclosing this reinforcing steel strip A method has been proposed.

  When carrying out the above-described method for reinforcing an existing structure, it is necessary to form a concrete placement space that encloses the reinforcing strip-shaped iron plate along the side surface of the existing structure. This concrete placement space must be formed by positioning a form plate placed so as to surround the concrete placement space with respect to the reinforcing strip-shaped iron plate. For this reason, it is necessary to connect the reinforcing strip-shaped iron plate fixed to a fixed position with respect to the existing structure and the formwork plate with a separator, and as a means for connecting the separator to the reinforcing strip-shaped iron plate at this time, As a means for coupling the separator to the above, a welding method and a method using a clamp metal, which are conventionally known methods, can be considered. The welding method is expensive because it requires a welding engineer, and the clamp metal fitting method uses a U-shaped clamp metal fitting fitted to the side of the belt iron plate and fixed with a fastening bolt. The separator that is screw-coupled to the clamp fitting in a direction perpendicular to the fitting direction of the clamp fitting to the iron plate has sufficient strength for the band iron plate, but the clamp is oriented in a direction parallel to the fitting direction of the clamp fitting to the band iron plate. The strength of the separator that is screw-bonded to the metal strip depends on the frictional resistance in the sliding direction between the clamp bolt's fastening bolt tip and the surface of the steel strip. It is not sufficient for the large internal pressure that pushes outward, causing a decrease in formwork strength.

  An object of the present invention is to provide a separator mounting bracket capable of solving the conventional problems as described above, and the configuration thereof is shown with reference numerals of embodiments to be described later. A side-shaped metal fitting that can be fitted to the side of the metal plate, and has a pair of parallel-shaped side plate portions and a connecting plate portion that connects and integrates both the U-shaped side plate portions. Between the both sides of the strip-shaped iron plate in a state where it is in contact with one side of the both sides of the strip-shaped iron plate and between the U-shaped side plates at a position facing the other side of the strip-shaped iron plate A separator is inserted between the through screw hole and the other side surface of the strip-shaped iron plate so that the separator can be inserted and removed only in the direction parallel to the other side surface of the strip-shaped iron plate. Upper separator insertion part and one side of the belt-like iron plate It has a configuration including a lower separator insertion portion for inserting to allow only connect or disconnect the separator in a direction parallel to the one side of the strip steel plate between the two co-shaped side plate portion at the adjacent side to.

  In carrying out the present invention having the above-described configuration, specifically, as described in claim 2, between a pair of parallel U-shaped side plates, a separator inserted through the separator insertion portion is provided between both U-shaped side plates. It is possible to configure an interval that can be positioned at a substantially central position.

  According to a third aspect of the present invention, the connecting plate portion connects ends of the pair of U-shaped side plate portions arranged in parallel to each other on the side where the through screw hole is provided. A through screw hole can be formed. In this case, as described in claim 4, the lower separator insertion portion includes a pair of separator receiving protrusions formed by punching a part of a pair of parallel U-shaped side plate portions inward. The lower separator insertion portion may be formed from the rear side of the pair of parallel U-shaped side plate portions opposite to the side where the band-shaped iron plate fitting recessed portion is located. It can also be set as the structure provided with a pair of separator receiving protrusion part arranged in a row.

  Furthermore, as described in claim 6, the connecting plate portion connects ends of the pair of parallel U-shaped side plate portions opposite to the side where the through screw hole is provided, The lower separator insertion portion may be formed inside the plate portion, and the through screw hole may be formed by a nut that is sandwiched and fixed between the U-shaped side plate portions.

  Further, as described in claim 7, the second side at a position parallel to the through screw hole in the separator insertion direction between the pair of parallel U-shaped side plate portions and not facing the other side surface of the strip-shaped iron plate. A through screw hole can be provided, and the belt-like iron plate is disposed on the rear side opposite to the side having the belt-like iron plate fitting recessed portion of the pair of U-shaped side plates arranged in parallel as described in claim 8. It is possible to form a chamfered portion having a cross-sectional shape in which an outer protruding corner portion is cut out over a length not narrower than the plate thickness.

  According to the separator mounting bracket according to the present invention having the configuration described in claim 1, the bracket according to the present invention is fitted to both sides of the strip-shaped iron plate and is perpendicular to the fastening bolt or the strip-shaped iron plate screwed into the through screw hole. The one end screw shaft portion of the facing separator is pressed against the side surface (the other side surface) of the belt-like iron plate to fix the metal fitting on both sides of the belt-like iron plate, and is inserted into the lower separator insertion portion of both metal fittings A long nut is screwed and fastened to both ends of the connecting separator in the crossing direction of the band-shaped iron plate, and the connecting separator can be fixed to the band-shaped iron plate via both the metal fittings of the present invention. Also, when using the upper separator insertion part, insert the connecting separator into the upper separator insertion part of both the metal fittings and fasten it in the same way before fastening the fastening bolt or the right-angled separator. And this invention metal fitting can be fixed to the side of a strip | belt-shaped iron plate via the connection separator penetrated by the upper separator insertion part by the fastening of the fastening volt | bolt screwed in the penetration screw hole, or a right angle direction separator.

  As described above, the connecting separator fixed to the belt-shaped iron plate using the metal fitting of the present invention is screwed to the extension separator using the long nuts at both ends or one end thereof, and is conventionally known at the outer end portion of the extension separator. The mold plate can be positioned and supported by this method. When a right-angled separator is used instead of the fastening bolt, the formwork plate can be positioned and supported on the outer end of the right-angled separator by a conventionally known method. Thus, the axial tensile external force acting on the extension separator is opposite to the direction in which the external force acts on both of the metal fittings of the present invention for fixing the connecting separator to which the extension separator is connected to both sides of the belt-like iron plate. Since this invention metal fitting located in the side acts in the direction which fits a strip-shaped iron plate, the said external force can be reliably received with a strip-shaped iron plate. In addition, when the formwork plate is positioned and supported using a right-angled separator, the axial tensile external force acting on the right-angled separator is the band-like iron plate fitting of the metal fitting of the present invention to which the right-angled separator is connected. Since it acts in the direction which press-contacts the inner side of a fitting recess part to the side surface (one said side surface) of a strip | belt-shaped iron plate, the said external force can be reliably received with a strip | belt-shaped iron plate.

  Therefore, by using the separator attached to the belt-shaped iron plate using the metal fittings of the present invention, the formwork plate forming the concrete placing space for containing the belt-shaped iron plate is firmly positioned and supported, and the concrete having sufficient strength. A formwork structure can be easily constructed. Moreover, according to the metal fitting of the present invention, the upper separator insertion portion and the lower separator insertion portion can be properly used depending on the situation. Especially when the lower separator insertion portion is used, the metal fitting of the present invention is first attached to the strip-shaped iron plate. Since the connecting separator can be inserted and fixed in a temporarily fixed state, workability can be improved.

  In addition, according to the structure of Claim 2, in order to position the connection separator penetrated by an upper separator insertion part or a lower separator insertion part in the approximate center position between both U-shaped side plate parts, It is not necessary to form an inward protruding portion on the side plate portion, and the metal molding cost can be reduced. Moreover, since the orientation of the connecting separator inserted through the separator insertion portion can be regulated using the entire width of the pair of U-shaped side plate portions in the separator insertion direction, the metal fittings of the present invention are attached to both sides of the belt-like iron plate. The positioning of the metal fitting of the present invention at the time becomes easy, and workability can be improved.

  Further, according to the configuration of the third aspect, the through screw hole for screwing the fastening bolt or the right-angled separator is used only by threading the through hole provided in the connecting plate portion, and other parts are used. The manufacturing cost of the metal fitting of the present invention can be reduced. In this case, the metal fitting of the present invention has a front portal structure in which the lower separator insertion portion side is open. However, according to the configuration of claim 4 or 5, the lower separator insertion can be performed without using other components. The part can be formed easily. Furthermore, according to the structure of Claim 6, a lower separator insertion part can be comprised without a special process.

  According to the structure of claim 7, the through screw hole facing the side surface (the other side surface) of the belt-like iron plate is dedicated to the fastening bolt, and the second through screw hole is dedicated to mounting the right-angled separator. can do. Therefore, in a state where the metal fitting of the present invention is fixed with the fastening bolt, the right-angled separator can be attached while freely adjusting the screwing depth without being affected by the belt-like iron plate using the second through screw hole. it can.

  Furthermore, according to the structure of claim 8, the metal fitting of the present invention is made of an iron plate having a sufficient thickness, and the width of the column portion connecting the upper and lower portions of the band-like iron plate fitting recess is maximized. Even if the gap between the hoop reinforcement supporting bars arranged in parallel with the end face of the belt-like iron plate and the end face of the belt-like iron plate is small while rotating the metal fitting of the present invention inserted into the gap, the When the metal fitting of the present invention is turned in a direction to be fitted to the side of the belt-shaped iron plate, the metal fitting of the present invention interferes with the end surface of the reinforcing bar for supporting the hoop bar and the belt-shaped iron plate, thereby hindering the mounting work of the metal fitting of the present invention. Such a situation can be prevented in advance.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 is a book composed of a thick iron plate having a gate shape with a side shape and a narrow front shape. A separator mounting bracket according to the invention (hereinafter referred to as a bracket according to the present invention), comprising a pair of left and right U-shaped side plate portions 2 and a connecting plate portion 3 for connecting both U-shaped side plate portions 2, The recessed portion 4 for fitting to each other is formed by cutting from the front side of both the U-shaped side plate portions 2, and the connecting plate portion 3 has the same diameter so as to be parallel to the length direction (front-rear direction). Two through screw holes 5 and 6 are provided, and two upper and lower separator insertion portions 7 and 8 are formed between the U-shaped side plate portions 2 so as to sandwich the recessed portion 4.

  The strip-shaped iron plate fitting recessed portion 4 is such that the inner side 4a on the side far from the connecting plate portion 3 is parallel to the connecting plate portion 3, and is in contact with one side surface Pa of the strip-shaped iron plate P into which the recessed portion 4 is fitted. Is formed. The two through screw holes 5 and 6 are formed by processing a thread groove in a burring hole formed so as to protrude outward in the connecting plate portion 3, and the first through holes on the side close to the front side of the two U-shaped side plate portions 2. The through screw hole 5 is provided at a position facing the other side surface Pb of the strip-shaped iron plate P to which the recessed portion 4 is fitted, and the second through screw hole 6 is opposed to the strip-shaped iron plate P to which the recessed portion 4 is fitted. It is provided in a position that does not. The distance between the U-shaped side plate portions 2, that is, the width of the upper and lower separator insertion portions 7 and 8 is slightly wider than the diameter of the separator S1 inserted through the separator insertion portions 7 and 8, and the separator S1 is connected to both ends. It is comprised so that it can position to the approximate center position between the shape side board parts 2. FIG. As shown in FIGS. 2 and 3, the two through screw holes 5 and 6 can be screwed together with a fastening bolt B having the same diameter as the separator S <b> 1 or a screw shaft portion S <b> 2 a formed at the end of the right-angled separator S <b> 2. The diameter is therefore slightly larger than the distance between the two U-shaped side plates 2.

  The upper separator insertion portion 7 is formed in a space that is surrounded by the side surface Pb of the strip-shaped iron plate P that contacts the inner side 4a of the recessed portion 4, the connecting plate portion 3, and both the U-shaped side plate portions 2 and penetrates in the front-rear direction. The lower separator insertion portion 8 includes a pair of separator receiving protrusions 8a formed by punching out a part of both U-shaped side plate portions 2 inward, and a strip-shaped iron plate P that contacts the inner side 4a of the recessed portion 4 The side surface Pa, both the U-shaped side plate portions 2, and the pair of separator receiving projections 8a are formed in a space penetrating in the front-rear direction.

  As shown in FIG. 2, the metal fitting 1 of the above-described configuration is formed into a band shape by fastening a fastening bolt B that is fitted with the recessed portion 4 on the side of the belt-like iron plate P and screwed into the first through screw hole 5. The side of the iron plate P can be sandwiched between the recessed portion inner side 4a and the fastening bolt B and fixed to the side of the belt-like iron plate P. In this case, the screw shaft portion S2a of the right-angled separator S2 is screwed and connected to the second through screw hole 6, and the connecting separator S1 is inserted into the lower separator insertion portion 8 along the side surface Pa of the belt-like iron plate P. The long nut N is screwed and connected to the screw shaft portion S1a of the connecting separator S1 protruding from the rear side of the two U-shaped side plate portions 2 of the metal fitting 1 using half of the screw holes, Using the remaining half of the screw hole of the long nut N, the screw shaft portion S3a of the extension separator S3 can be screwed and connected.

  Further, as shown in FIG. 3, the connecting separator S <b> 1 can be inserted through the upper separator insertion portion 7 along the side surface Pb of the strip-shaped iron plate P. In this case, the connecting separator S1 is pressed against the side surface Pb of the strip-shaped iron plate P with the tip of the fastening bolt B screwed into the first through screw hole 5, and the metal fitting 1 of the present invention is attached via the connecting separator S1. It is fixed to the side of the belt-like iron plate P.

  The reinforcing form assembled using the two metal fittings 1A and 1B of the present invention having the above configuration will be described. In the reinforcing form shown in FIG. 4, the reinforcing form is separated from the one side CPa of the pillar CP of the existing building by an appropriate distance. At the position, the reinforcing strip-shaped iron plate P is disposed along the height direction of the column CP in parallel with the side surface CPa. The reinforcing strip-shaped iron plate P is coupled to the pillar CP using an anchor (not shown). Each of the inventive metal fittings 1A, 1B is attached to the left and right sides of the reinforcing strip-shaped iron plate P so as to face each other.

  That is, the metal fittings 1A and 1B of the present invention are connected to the reinforcing strip-shaped iron plate P through the recessed portion 4 in such a direction that the connecting plate portion 3 is located outside the reinforcing strip-shaped iron plate P (the side opposite to the side having the pillar CP). The fastening bolt B which is externally fitted to the side of the first screw hole 5 and tightened into the first through screw hole 5 is tightened, and the side of the reinforcing strip-shaped iron plate P between the tip of the fastening bolt B and the inner side 4a of the recessed portion By clamping the sides, the metal fittings 1A and 1B of the present invention are fixed to both sides of the reinforcing strip-shaped iron plate P so as to face each other. Thereafter, the connecting separator S1 is inserted into the lower separator insertion portion 8 of both the present invention metal fittings 1A and 1B, and the connecting separator S1 is arranged transversely in the width direction of the reinforcing strip-shaped iron plate P. Then, a long nut N is screwed and fastened to both end screw shaft portions S1a (see FIG. 2) of the connecting separator S1 projecting outward from both the metal fittings 1A and 1B, and the connecting separator S1 is connected via the metal fittings 1A and 1B. Is fixed to the reinforcing belt-like iron plate P. At this time, the total length of the connecting separator S1 is adjusted in advance so that the both-end screw shaft portions S1a of the connecting separator S1 are screwed into approximately half of the screw holes of the long nut N.

  Next, the inner end screw shaft portion S2a (see FIG. 2) of the right-angled separator S2 having a predetermined length is screwed and connected to the second through screw hole 6 of each of the metal fittings 1A and 1B of the present invention. At this time, since the inner end screw shaft portion S2a of the right-angled separator S2 does not interfere with the reinforcing band-shaped iron plate P, the inner end screw shaft portion S2a of the right-angled separator S2 is moved to the second through screw hole 6 to an arbitrary depth. The protruding length of the right-angled separator S2 from the reinforcing belt-like iron plate P can be adjusted. As a result, the right-angled separators S2 project in parallel to each other from the left and right sides of the reinforcing strip-shaped iron plate P to the opposite side of the column CP in a direction perpendicular to the length direction of the connecting separator S1. Become. On the other hand, the inner end screw shaft portion S3a (see FIG. 2) of the extension separator S3 having a predetermined length is screwed and connected to the screw hole region of the outer half of each long nut N connected to both ends of the connection separator S1. To do.

  As described above, a pair of right and left right-angled separators S2 that are perpendicular to the connecting separator S1 that is oriented across the left and right sides of the reinforcing band-shaped iron plate P on the left and right sides of the reinforcing band-shaped iron plate P; When a pair of left and right extension separators S3 concentrically connected to the end of the connection separator S1 is attached, as shown in FIG. 4, the outer ends of the separators S2 and S3 are connected in the manner known in the art. The formwork plates 9 to 11 are attached, and the formwork plates 13 to 11 and one side face CPa of the pillar CP are used to assemble the formwork 13 for reinforcement that forms the concrete placement space 12 that encloses the reinforcing strip-shaped iron plate P. Can do. Of course, although not shown, in order to increase the bonding strength between the concrete cast in the concrete placement space 12 and the reinforcing strip-shaped iron plate P, the hoop muscles surrounding the reinforcing strip-shaped iron plate P and the hoop muscles are positioned. Reinforcing bars, etc. are arranged in advance.

  FIG. 5 shows a reinforcing mold having the same structure as that of the reinforcing mold shown in FIG. 4, but a connecting separator S1 that is installed and fixed between the pair of metal fittings 1A and 1B of the present invention is shown in FIG. 5 shows an example in which the reinforcing mold 13 is assembled by being inserted into the upper separator insertion portion 7 of each of the metal fittings 1A and 1B of the present invention. The metal fitting according to the present invention is effective for assembling a reinforcing form in the case where a reinforcing structure having a reinforcing band-like iron plate P built in the side surface of the pillar CP is added as shown in FIGS. It can also be used for assembling reinforcing forms when a similar reinforcing structure is added below the wide beam. In addition, when a reinforcing structure is installed as a bracing between upper and lower beams, the reinforcing structure is constructed diagonally, so that both ends are supported by existing structures such as beams as shown in FIG. 6A. Thus, the reinforcing frame 14 in the form of a rectangular tube surrounds the reinforcing strip-shaped iron plate P disposed such that the side surfaces are vertically vertical and the entire surface is inclined obliquely. Therefore, among the four mold plates 15 to 18 constituting the reinforcing mold 14, the two short mold plates 15 and 16 arranged at right angles to the reinforcing strip-shaped iron plate P are Positioning is performed using the extension separator S3 connected to both ends of the connection separator S1 attached so as to cross the width direction of the reinforcing strip-shaped iron plate P by the inventive metal fittings 1A, 1B, and parallel to the reinforcing strip-shaped iron plate P. At least one of the two long-side mold plates 17 and 18 is attached to both sides of the reinforcing strip-shaped iron plate P by the metal fittings 1A and 1B. Positioning can be performed using a pair of right-angled separators S2. The other mold plate 18 can be positioned by directly connecting to one mold plate 17 with separators arranged on both sides of the reinforcing strip-shaped iron plate P, or the right-angled separator S2 can be positioned. It can be attached to the reinforcing strip-shaped iron plate P via the metal fittings 1A and 1B of the present invention so as to protrude toward the 18th side, and can be positioned by this right-angled separator S2.

  Further, as shown in FIG. 6B, a formwork in the case of adding a reinforcing structure having a reinforcing band-like iron plate P built in on the lower side of a narrow existing structure constructed in a horizontal direction like a beam CB. When the metal fitting of the present invention is used for assembling, the side of the beam CB is arranged vertically below the beam CB and parallel to the reinforcing strip-shaped iron plate P supported by the beam CB by an anchor (not shown). Two-sided formwork plates 19 and 20 disposed on the surface, one formwork plate 21 installed between the lower sides of both formwork plates 19 and 20, and the lower side surface CBa of the beam CB. The reinforcing form 22 that forms the concrete placement space 12 is configured. In this case, as shown in the drawing, the extension separator S3 is provided only on the lower end side of the connecting separator S1 that is mounted in the vertical and vertical direction across the width direction of the reinforcing strip-shaped iron plate P via the pair of metal fittings 1A and 1B of the present invention. And the mold plate 21 is positioned, and the mold plates 19 and 20 may be positioned similarly to the mold plates 17 and 18 in the embodiment of FIG. 6A.

  Of course, when assembling the reinforcing molds 14 and 22 shown in FIGS. 6A and 6B, as shown in FIGS. 3 and 5, the connecting separator S1 to be installed and fixed between the pair of metal fittings 1A and 1B of the present invention is used. The reinforcing molds 14 and 22 can be assembled by being inserted through the upper separator insertion portions 7 of the respective metal fittings 1A and 1B of the present invention. Further, when it is not necessary to adjust the length of the right-angled separator S2 used when assembling the reinforcing form shown in FIGS. 4 to 6, that is, the position of the reinforcing strip-shaped iron plate P is high in accuracy and the entire length. When the bending deformation is within the allowable range, the screw shaft portion S2a of the right-angled separator S2 is screwed into the first through screw hole 5 without using the fastening bolt B as shown in FIG. It is also possible to fix the metal fitting 1 of the present invention to the belt-shaped iron plate P by pressing the strip-shaped iron plate P or the connecting separator S1 inserted into the upper separator insertion portion 7 at the tip of the right-angled separator S2. When it can restrict to such a usage method, it is also possible to comprise this invention metal fitting 1 without providing the 2nd penetration screw hole 6 from the beginning.

  Embodiment of this invention metal fitting 1 is not limited to said structure. For example, a pair of separator receiving projections 8a formed by punching a part of both U-shaped side plate portions 2 inward in order to constitute the lower separator insertion portion 8 is formed as a double U-shaped side plate in the embodiment shown in FIG. 9, a part of the U-shaped side plate portion 2 is punched inward at a location away from the lower side of the portion 2. However, as shown in FIG. 9, the lower end of the separator receiving protrusion 8 a is a double U-shaped side plate. You may form vertically long so that the lower side of the part 2 may be reached. Moreover, the burring hole which forms each of the first and second through screw holes 5 and 6 can be formed so as to protrude to the inner side of the connecting plate portion 3, and depending on the plate thickness of the connecting plate portion 3, The through screw holes 5 and 6 can be formed within the range of the plate thickness of the connecting plate portion 3 without using the burring holes.

  Further, as shown in FIG. 10, the lower separator insertion portion 8 has a structure including a pair of separator receiving protrusions 8a that are bent inward from the rear side of both the U-shaped side plate portions 2. You can also. In this case, as shown in the figure, the position of the connecting separator S1 inserted through the upper separator insertion portion 7 into the bent sides 23a and 23b which are continuously bent inward from the entire rear side of both the U-shaped side plates 2. Can be formed, and notches 25a and 25b for restricting the position of the connecting separator S1 inserted through the lower separator insertion portion 7 in the vertical direction.

  FIG. 11 shows an embodiment in which the first through screw hole 5 is constituted by a nut 26 which is a separate member. In this case, the connecting plate portion 3 that connects both the U-shaped side plate portions 2 is constructed between the lower side portions of the both U-shaped side plate portions 2, and the metal fitting 1 of the present invention is formed in a front U shape. The nut 26 is clamped and fixed to the inside near the upper side of both the U-shaped side plate portions 2. At this time, the nut 26 and the both U-shaped side plate portions 2 may be integrated by welding. Both the U-shaped side plate portions 2 are partially deformed by pressure so that the corner portions 26a, 26b at both ends in the diameter direction of each of the two portions extrude a part of the both U-shaped side plate portions 2 outwardly and engage with each other so as not to rotate relative to each other. The nut 26 and both U-shaped side plate portions 2 can be integrated by a caulking method. According to this embodiment, the connecting plate portion 3 constitutes the separator receiving portion of the lower separator insertion portion 8. Of course, you may provide the 2nd through screw hole 6 by the same method.

  As shown in FIG. 12, when the hoop bar 28 is wound around the belt-like iron plate P, a required distance D of, for example, about 25 mm from the end surface Pc of the belt-like iron plate P in order to position the hoop bar 28. A hoop rebar positioning rebar 29 is disposed along the end surface Pc of the strip-shaped iron plate P with a gap therebetween. In such a case, as shown in FIG. 12, the metal fitting 1 of the present invention has a hoop bar in such a direction that the outer side surfaces of both U-shaped side plates 2 are adjacent to the hoop bar positioning reinforcing bar 29 and the end surface Pc of the belt-like bar P. After inserting from the side into the gap 30 between the positioning reinforcing bar 29 and the end face Pc of the belt-like iron plate P, as shown in FIG. 13, the U-shaped side plate portion 2 is rotated with the height direction as the rotation axis. The recessed portion 4 is fitted to the side of the belt-like iron plate P as shown in FIG. At this time, the thickness of the iron plate constituting the metal fitting 1 of the present invention is thick, or the width between the rear side of the U-shaped side plate part 2 and the vertical inner side 4b of the recessed part 4 parallel to the rear side is large. In this case, the outer protruding corner portion of the rear side edge of the U-shaped side plate portion 2 and the outer protruding corner portion of the vertical inner side 4b of the recessed portion 4 parallel to the rear side side of the U-shaped side plate portion 2 are the hoop reinforcement positioning reinforcing bars 29. Further, the metal fitting 1 of the present invention may not be rotated as shown in FIG. 13 in contact with the end surface Pc of the belt-shaped iron plate P or may become difficult.

  In order to solve the above problems, as shown in FIG. 1B and FIGS. 12 to 14, a pair of parallel U-shaped side plate portions 2 on the side opposite to the side where the strip-shaped iron plate fitting recessed portion 4 is located. On the rear side, a chamfered portion 27 having a cross-sectional shape in which an outer protruding corner is cut out can be formed over a length (region of the rear side) that is not narrower than the thickness of the strip-shaped iron plate P. The chamfered portion 27 may be formed by cutting the outer protruding corner portion or may be formed by hitting and deforming the outer protruding corner portion. According to this configuration, as shown in FIG. 13, the diameter d of the minimum occupied space when the metal fitting 1 of the present invention is rotated is reduced by the presence of the chamfered portion 27, and the hoop reinforcement positioning rebar 29 and the strip-shaped iron plate P are used. The metal fitting 1 of the present invention can be easily and easily rotated within the gap 30 with the end face Pc. In other words, by providing the chamfered portion 27, the thickness of the steel plate constituting the metal fitting 1 of the present invention is increased, and the rear side of the U-shaped side plate 2 and the recessed portion 4 parallel to the rear side are provided. The width between the vertical inner side 4b can be maximized and the strength of the metal fitting 1 of the present invention can be increased.

It is a figure which shows one Embodiment of this invention, Comprising: A figure is a vertical side view, B figure is a perspective view, C figure is a vertical front view. It is a vertical side view which shows the usage method of this invention metal fitting. It is a vertical side view which shows the other usage method of this invention metal fitting. It is a cross-sectional top view which shows the 1st example of the reinforcement form frame adjacent to the column side surface assembled using this invention metal fitting. It is a cross-sectional top view which shows the 2nd example of the reinforcement formwork adjacent to the column side surface assembled using this invention metal fitting. Fig. A is a longitudinal front view of a bracing formwork assembled using the metal fittings of the present invention, and Fig. B is a vertical front view of a reinforcing mold frame adjacent to the beam, assembled using the metal fittings of the present invention. is there. It is a vertical side view which shows another usage method of this invention metal fitting. It is a vertical side view which shows another usage method of this invention metal fitting. It is a figure which shows 2nd embodiment of this invention, Comprising: A figure is a side view, B figure is a vertical side view, C figure is XX sectional drawing of A figure. It is a figure which shows 3rd embodiment of this invention, Comprising: A figure is a side view, B figure is a top view, C figure is a rear view. It is a figure which shows 4th embodiment of this invention, Comprising: A figure is a vertical side view, B figure is a vertical front view, C figure is a top view. It is a partially longitudinal front view which shows the 1st step of the usage method of the metal fitting which concerns on 5th embodiment of this invention. It is a partial cross section top view which shows the 2nd step of the usage method of the metal fitting. It is a partial cross section top view which shows the 3rd step of the usage method of the metal fitting.

Explanation of symbols

1, 1A, 1B Invention metal fitting 2 U-shaped side plate portion 3 Connecting plate portion 4 Strip-shaped iron plate fitting recessed portion 4a Recessed portion inner side 5 First through screw hole 6 Second through screw hole 7 Upper separator insertion portion 8 Lower separator Insertion part 8a Separator receiving projections 9-11, 15-21 Mold plate 12 Concrete placement spaces 13, 14, 22 Reinforcement molds 23a, 23b Bending sides 24a-25b Notch part 26 Nut 27 Chamfering part 28 Hoop Reinforcement 29 Hoop Reinforcement Reinforcing Bar CP Column CB Beam N Long Nut P Reinforcing Banded Iron Plate Pa One Side Pb of Reinforcing Banded Iron Plate Sb The Other Side S1 of Reinforcing Banded Iron Plate S1 Connecting Separator S2 Right Angle Separator S3 separator

Claims (8)

  A side U-shaped metal fitting that can be fitted to the side of the belt-shaped iron plate, and has a pair of parallel U-shaped side plate portions and a connecting plate portion that connects and integrates both U-shaped side plate portions. In a state of being fitted to the side of the strip-shaped iron plate, between the both sides of the strip-shaped iron plate, the inner side of the recessed portion that comes into contact with one side surface, and the position between the two U-shaped side plates at the position facing the other side of the strip-shaped iron plate The separator can be inserted / removed only in the direction parallel to the other side surface of the strip-shaped iron plate between the through-screw hole provided in the plate and between the through-screw hole and the other side surface of the strip-shaped iron plate. An upper separator insertion portion to be inserted, and a lower separator for allowing only insertion and removal of the separator in a direction parallel to one side surface of the belt-like iron plate between both U-shaped side plate portions on the side adjacent to one side surface of the belt-like iron plate Separator having an insertion part Over mounting bracket.   2. The separator mounting bracket according to claim 1, wherein a space between the pair of parallel U-shaped side plate portions is configured such that a separator inserted through the separator insertion portion can be positioned at a substantially central position between the two U-shaped side plate portions. .   The connecting plate portion connects ends of the pair of U-shaped side plate portions arranged in parallel to each other on the side where the through screw hole is provided, and the through screw hole is formed in the connecting plate portion. The separator mounting bracket according to claim 1 or 2.   4. The separator mounting bracket according to claim 3, wherein the lower separator insertion portion includes a pair of separator receiving protrusions formed by projecting a part of a pair of parallel U-shaped side plate portions inward.   The lower separator insertion portion includes a pair of separator receiving protrusions that are bent inward from the rear side opposite to the side where the band-shaped iron plate fitting recessed portion of the pair of U-shaped side plates is arranged in parallel. The separator mounting bracket according to claim 3, which is provided.   The connecting plate portion connects ends of the pair of U-shaped side plate portions arranged in parallel to the side opposite to the side where the through screw hole is provided, and the lower separator is provided inside the connecting plate portion. The separator mounting bracket according to claim 1 or 2, wherein an insertion portion is formed, and the through screw hole is formed by a nut sandwiched and fixed between both U-shaped side plate portions.   A second through screw hole provided in a position parallel to the through screw hole in the separator insertion direction between a pair of parallel U-shaped side plate portions and not facing the other side surface of the belt-like iron plate; The separator mounting bracket according to any one of claims 1 to 6.   A cross section obtained by cutting out the outer protruding corners over a length not narrower than the thickness of the strip-shaped iron plate on the rear side opposite to the side having the strip-shaped iron plate fitting recessed portion of the pair of U-shaped side plates arranged in parallel The separator mounting bracket according to any one of claims 1 to 7, wherein a chamfered portion having a shape is formed.

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