JP2011252297A - Brace frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brace frame capable of easily adjusting parallelism in an interval direction in which vertical column materials on both sides are juxtaposed during assembly by connection with bolts.SOLUTION: An upper brace material 4 and a lower brace material 5 are provided between the vertical column materials 2, 3 in parallel, and an adjustment type connection device 6 for connecting the assembled end of the upper and lower brace materials 4, 5 and the vertical intermediate part of the other vertical column material 3 includes a pair of fixed members 12, 13 fixed to the other vertical column material 3, a bolt receiving member 16 fixed to the assembled end of the upper and lower brace materials 4, 5 and disposed between the fixed members 12, 13, and the bolt 14 for connecting the fixed members 12, 13 and the bolt receiving member 16, and the vertical positions of the fixed members 12, 13 and the bolt receiving member 16 are relatively adjusted by the vertical bolt 14.

Description

  The present invention relates to a K-shaped bracing frame used for the construction of a steel frame structure, and more particularly to a bracing frame capable of accurately assembling the frame on site.

  For example, as one of the frame structures of a building using steel frames, a foundation is installed on the foundation, a beam material is passed over the upper part between the corner pillars erected on the corner of this foundation, and they face each other vertically It is known that a bracing frame is disposed between a base and a beam member, and an intermediate pillar is erected and constructed as necessary, and a roof set is provided on the frame structure.

  The bracing frame used in the frame structure as described above is composed of a pair of parallel steel pipe columns and a steel pipe bracing material that joins the vertical columns to each other. Using a diagonally downward upper brace fixed to the upper end of the material and an obliquely upward lower brace fixed to the lower end of the vertical column material, the aggregate end of the upper bracing material and the lower bracing material is the other vertical column By welding to the upper and lower middle parts of the material, it is assembled into a K shape when viewed from the front, and by installing this bracing frame between the base and beam material positioned vertically so that both vertical columns are vertical, the shaft The rigidity of the assembled structure is maintained (for example, see Patent Documents 1 and 2).

  The brace frame assembled by welding as described above has a structure with a width and length by joining the vertical column members on both sides, so the whole shape is inevitably bulky, and as it is, it is transported to the site Since it is inconvenient to carry in, the bolt connection structure that enables assembly in the field is adopted to connect the gathering end of the upper brace material and the lower brace material and the other vertical column material, and the vertical column materials on both sides are separated. In addition, a bracing frame has been proposed in which the overall shape is reduced in volume so that it can be easily carried into the site.

  The bracing frame assembled by the above-mentioned bolt coupling is a holder bracket in which the coupling of the bracing material and the other vertical column material is bent in a U-shaped cross section with the top and bottom inclined in the same direction, and a bolt insertion hole is provided in the center The upper end brace material and the lower brace material gather side end are fitted to both ends of the holder metal fitting, the fitting part of both is fixed by welding, and the other is a screw hole at the position where the vertical column material brace material is joined The holder metal fitting is overlapped on the other vertical column member, the bolt is screwed into the screw hole from the bolt insertion hole, and the brace material is fixed to the other vertical column member via the holder metal fitting (for example, (See Patent Document 3).

JP 2000-291139 A Japanese Patent Laid-Open No. 2001-220818 JP 2004-156214 A

  By the way, in order to maintain the rigidity of the frame structure, the bracing frame as described above requires the vertical positional relationship and parallel accuracy of the vertical column members as well as the coupling strength between the vertical column members and the bracing members at the time of assembly. However, since the bolt connection structure as described above simply connects the vertical column member and the holder bracket with a single bolt, the parallelism of the vertical column members on both sides is the processing of each part during production. It was determined by the state, and there was room for improvement in that it was not possible to finely adjust the vertical positional relationship between the vertical column members on both sides and the parallelism in the side-to-side spacing direction during assembly.

  Therefore, in view of the above points, the object of the present invention is to easily and accurately finely adjust the parallelism in the interval direction in which the vertical columns of both sides are parallel when assembling by coupling with bolts. An object of the present invention is to provide a bracing frame capable of ensuring the rigidity of a required shaft structure.

  In order to solve the above-mentioned problems, the present invention provides a diagonally downward upper brace fixed to the upper end of one vertical column member, and an oblique upward facing fixed to the lower end of the vertical column member, between parallel vertical column members. A lower brace material, and an assembly end portion of the upper and lower brace members and an upper and lower middle portion of the other vertical column member are joined and assembled by an adjustable coupling device, and the adjustable coupling device is an upper and lower brace. A pair of fixing members fixed in a coaxially-centered arrangement with a vertical interval with respect to any one of the aggregate end portion of the material and the other vertical column member, and the aggregate end portion of the upper and lower brace material and the other The bolt comprises a combination of a bolt receiving member that is fixed to one of the vertical column members and is housed between the fixing members positioned above and below, and a bolt for connecting the upper and lower ends of the fixing member and the bolt receiving member. The fixing member and bolt receiving member Manner is obtained by allowing adjustment of the position of the upper and lower.

  In the adjustable coupling device, a screw hole is provided in the fixing member, and a shaft portion of a bolt screwed into the screw hole has a length penetrating the fixing member. A fitting hole in which the bolt is received is provided, and the bolt receiving member is coupled between the upper and lower fixing members so that the vertical position can be adjusted by fitting the shaft portion of the upper and lower bolts screwed into the screw holes of the fixing member into the fitting holes It can be set as the structure which becomes.

  In the adjustable coupling device, a bolt insertion hole is provided in the fixing member, and a shaft portion of the bolt inserted through the bolt insertion hole has a length penetrating the fixing member, and a bolt is provided at the upper and lower ends of the bolt receiving member. A screw hole for screwing the shaft portion of the upper and lower bolts is provided, and the shaft portion of the upper and lower bolts inserted through the fixing member is screwed into the screw hole so that the bolt receiving member is coupled between the upper and lower fixing members so that the vertical position can be adjusted. It can be a structure.

  Two reinforcing plates are welded in parallel to each other on both sides of the reinforcing plate fixed to the other vertical column member, and the fixing members are fixed to the upper and lower ends between the two reinforcing plates by welding, The bolt receiving member may be fixed by welding to an attachment plate for fixing the upper and lower bracing members at the upper and lower ends, and the bolt receiving member may be placed between the two reinforcing plates. .

  Here, the vertical column members and the upper and lower brace members use square steel pipes, and the upper and lower brace members are obliquely cut at both ends, while the upper and lower ends on one surface of the vertical column member are arranged in a V shape. For example, a bracing frame having a height of 2700 mm and an outer width of about 1000 mm can be obtained by joining the gathering end of the upper and lower bracing members and the other vertical column member with an adjustable coupling device. Will form.

  The adjustable coupling device is a bolt that is screwed or inserted into the upper and lower fixing members, holds the bolt receiving member formed using the square shaft material from above and below, and collects end portions of the upper and lower brace members and the other vertical column. By combining the materials and adjusting the screwing amount of the upper and lower bolts, the vertical fixing member and the bolt receiving member are moved relatively up and down, and by using this movement, the vertical position and verticality of both vertical column members Will be adjusted.

  According to the present invention, the gathering end of the upper and lower brace members fixed to the one vertical column member and the other vertical column member are combined by the adjustable coupling device, and this adjustable coupling device is screwed or inserted into the upper and lower fixing members. By holding the bolt receiving member from above and below with bolts, it is formed so that the gathering end of the upper and lower brace members and the other vertical column member are combined, so by adjusting the screwing amount of the bolts, the upper and lower fixing members And the bolt receiving member located between them can be relatively moved, and thereby, when assembling the bracing frame, the right and left verticality and parallelism of both vertical column members and the vertical position can be adjusted accurately. It is possible to provide a bracing frame that secures the rigidity required for the built-in frame structure.

  In addition, the fixing member and the bolt receiving member are coupled by fitting or screwing the bolt shaft portion to both ends of the bolt receiving member, so that the combined end of the upper and lower brace members and the other vertical column member are coupled. The required mechanical strength can be ensured, and the bracing frame can be assembled smoothly by operating the bolts, and at the same time, the assembly strength can be improved.

The front view which shows an example of the frame structure which shows the use condition of the bracing frame of 1st Embodiment concerning this invention The disassembled perspective view which shows the adjustable coupling device used for the assembly of the bracing frame of 1st Embodiment The longitudinal front view which shows the decomposition | disassembly state before the coupling | bonding of the adjustment type coupling apparatus in the bracing frame of 1st Embodiment The partially notched front view which shows the coupling | bonding state of the adjustable coupling apparatus in the bracing frame of 1st Embodiment The longitudinal front view which shows the decomposition | disassembly state before the coupling | bonding of the adjustable coupling device in the bracing frame of 2nd Embodiment concerning this invention Partially cutaway front view showing the coupling state of the adjustable coupling device in the brace frame of the second embodiment

  Hereinafter, embodiments of the present invention will be described based on illustrated examples.

  A brace frame 1 according to the first embodiment shown in FIGS. 1 to 4 is arranged between a pair of parallel vertical column members 2 and 3 and both vertical column members 2 and 3, and the upper end of the vertical column member 2. The upper brace member 4 which is obliquely downward fixed to the lower part, the lower upper brace member 5 which is obliquely upward fixed to the lower end of the vertical column member 2, the aggregate end of the upper brace member 4 and the lower brace member 5 and the other vertical member It is formed by an adjustable coupling device 6 that couples the upper and lower intermediate portions of the column member 3 and horizontal beam members 7 and 8 that couple the pair of vertical column members 2 and 3 at the upper and lower positions.

  The vertical column members 2 and 3 are, for example, steel pipes having a 100 mm square, a length of 2700 mm and a thickness of 3.2 mm, and upper and lower ends thereof are closed by welded end plates 9 and 10. The materials 2 and 3 have a center interval of about 900 mm when placed on the left and right sides, and the upper brace material 4 and the lower brace material 5 are cut diagonally at both ends using a 50 mm square and 3.2 mm thick steel pipe. By welding and fixing to the upper end portion and the lower end portion on one surface of the vertical column member 2 via the base plate 11, the V column shape having an inclination angle of 33 ° between both the vertical column members 2 and 3 is obtained. The upper and lower brace members 4 and 5 and the other vertical column member 3 are arranged in a K shape, and the brace frame 1 having a height of 2700 mm and an outer width of about 1000 mm is formed.

  As shown in FIGS. 2 to 4, the adjustable coupling device 6 includes a pair of fixing members 12 and 13 fixed to the upper and lower intermediate portions of the other vertical column member 3, and the pair of fixing members 12 and 13. On the other hand, a bolt 14 having a shaft portion of a length penetrating the fixing members 12 and 13 and screwed from the opposite ends of the upper and lower sides, and a length that fits between the pair of fixing members 12 and 13 with a margin. And a bolt receiving member 16 which is provided at both ends with fitting holes 15 and 15 in which the shaft portions 14a of the bolts 14 are accommodated in a coaxial arrangement, and which is fixed to the collective ends of the upper and lower bracing members 4 and 5. It is formed with.

  The reinforcing plate 18 is vertically fixed to the other vertical column member 3 by welding, and two reinforcing plates 20 in the form of long strips are welded to both sides of the reinforcing plate 18 so as to face each other in parallel. The fixing members 12 and 13 are fixed to the upper and lower end portions between the reinforcing plates 20 by welding, respectively, and the fixing members 12 and 13 use a 40 mm square and a 50 mm long square shaft material along the axis. The screw hole 17 penetrates and is arranged with an interval of 140 mm vertically, and the screw hole 17 is coaxially arranged vertically.

  Accordingly, the fixing members 12 and 13 are fixed to the other vertical column member 3 while being slightly lifted from the reinforcing plate 18 via the reinforcing plate 18 and the two reinforcing plates 20, and are applied to the fixing members 12 and 13. The structure has excellent load support strength.

  The shaft portion 14a of the bolt 14 has a length enough to pass through the fixing members 12 and 13 and fit into the fitting hole 15, and from the opposite ends of the upper and lower fixing members 12 and 13. It is designed to be screwed.

  The bolt receiving member 16 is formed by using a long rectangular shaft material that is long enough to fit between the upper and lower fixing members 12 and 13 and has a depth of 25 mm so that the bottom surface is flat at both ends. Joint holes 15 and 15 are provided, and are fixed by welding to a mounting plate 19 that fixes the gathering end portions of the upper and lower brace members 4 and 5 up and down.

  The brace frame 1 has a basic structure in which a pair of vertical column members 2 and 3 are joined by an upper brace member 4 and a lower brace member 5, but as shown in FIG. By combining the upper and lower brace members 4 and 5 and the one vertical column member 2 using the adjustable coupling device 6, the three vertical column members 2, 2 and 3 are arranged on the same plane in parallel, By connecting the upper and lower brace members 4 and 5 and the one vertical column member 2 to the two adjacent or three surfaces of the other vertical column member 3 using the adjustable coupling device 6, the three vertical column members 2, 2, A planar L-shaped bracing frame for corners using 3 and a planar T-shaped bracing frame for three-way can be configured.

  The bracing frame 1 of the first embodiment has the above-described configuration. Next, an assembly method of the bracing frame 1 and a method of assembling a steel frame structure using the same will be described.

  On the other hand, the upper bracing material 4 and the lower bracing material 5 are welded in an inclined manner at the positions of the upper and lower ends on one surface side of the vertical column member 2, and a bolt receiving member is attached to the collective end of the upper bracing material 4 and the lower bracing material 5. Fixing members 12, 13 that are vertically attached to one vertical side of the vertical column member 2 and the other vertical column member 3 that are welded so as to be parallel to the vertical column member 2. The other vertical column member 3 welded to the reinforcing plate 18 provided with is manufactured at the factory, and the two vertical column members 2 and 3 are carried into the construction site in a disassembled state.

  At the construction site, both vertical column members 2 and 3 are arranged in parallel, the bolt receiving member 16 is fitted between the upper and lower fixing members 12 and 13, and the shaft portion of the bolt 14 screwed into the upper and lower fixing members 12 and 13. 14a is inserted into a fitting hole 15 positioned above and below the bolt receiving member 16, and both vertical column members are obtained by coupling the fixing members 12 and 13 to the adjustable coupling device 6 including the bolt receiving member 16 and the bolt 14. Temporary assembly of the bracing frame 1 in which 2 and 3 are parallel is performed.

  The adjustable coupling device 6 is configured such that when the bolt 14 screwed into the upper and lower fixing members 12 and 13 is screwed in, the tip of the shaft portion 14a that becomes flat of the bolt 14 comes into contact with the bottom surface of the fitting hole 15. The bolt receiving member 16 is sandwiched in the axial direction from above and below by the upper and lower bolts 14, and the upper and lower screw cylinders 12 and 13 and the bolt receiving member 16 are coupled vertically, and at the same time, the fitting portion between the shaft portion 14 a and the fitting hole 15. Will hold the bond in the lateral direction.

  As shown in FIG. 1, the bracing frame 1 of the temporary assembly as described above is installed so as to stand upright between the base b provided on the foundation a and the beam material d spanning the upper part between the corner pillars c, With the parallelism of both vertical column members 2 and 3 adjusted, the lower ends of both vertical column members 2 and 3 are bolted to the base b and the end plate 10, and the upper ends are bolted to the beam member d and the end plate 9. The building frame structure is constructed.

  The adjustment of the parallelism between the vertical column members 2 and 3 can be performed by moving the upper and lower fixing members 12 and 13 and the bolt receiving member 16 relatively up and down by adjusting the screwing amount of the upper and lower bolts 14. Well, for example, the vertical position of the other vertical column member 3 and the parallelism of the other vertical column member 3 can be adjusted with respect to the one vertical column member 2. By adjusting the degree and the vertical position with high accuracy, the rigidity required for the built-in frame structure can be ensured.

  Next, FIG. 5 and FIG. 6 show the bracing frame 1 of the second embodiment. In addition, it replaces with description by attaching | subjecting the same code | symbol to the same part as the bracing frame 1 of 1st Embodiment mentioned above.

  In the adjustable coupling device 6 for the brace frame 1 according to the second embodiment, a bolt insertion hole 21 is provided in the fixing members 12 and 13, and the shaft portion 14 a of the bolt 14 inserted into the bolt insertion hole 21 is a fixing member. The upper and lower bolts 14 having a length penetrating through the bolts 14 and 13 and having screw holes 22 for screwing the shafts 14a of the bolts 14 into the upper and lower ends of the bolt receiving member 16 are inserted into the fixing members 12 and 13. By screwing the shaft portion 14a into the screw hole 22, the bolt receiving member 16 is coupled between the upper and lower fixing members 12 and 13 so that the vertical position can be adjusted.

  Therefore, the second embodiment is different from the first embodiment in that the first embodiment is provided with the screw holes 17 in the fixing members 12 and 13, whereas the second embodiment is different from the first embodiment in the second embodiment. In the second embodiment, the bolt insertion hole 21 is used, and in the first embodiment, the fitting holes 15 are provided at the upper and lower ends of the bolt receiving member 16, whereas in the second embodiment, the screw hole 22 is provided. However, it is common in that the fixing members 12 and 13 and the bolt receiving member 16 are relatively moved by the operation of the upper and lower bolts 14.

  When assembling the bracing frame 1 of the second embodiment, the vertical column members 2 and 3 are arranged in parallel in the construction site, and the bolt receiving member 16 is fitted between the upper and lower fixing members 12 and 13. The shaft portion 14a of the bolt 14 inserted through the upper and lower fixing members 12 and 13 is screwed into the screw hole 22 positioned above and below the bolt receiving member 16 until the head of the bolt 14 comes into contact with the fixing members 12 and 13. Then, the bracing frame 1 in which the vertical column members 2 and 3 are parallel to each other is temporarily assembled by the coupling of the adjusting coupling device 6 including the fixing members 12 and 13 and the bolt receiving member 16 and the bolt 14.

  The adjustable coupling device 6 joins the fixing members 12 and 13 and the bolt receiving member 16 with the upper and lower bolts 14 by screwing the bolts 14 inserted into the upper and lower fixing members 12 and 13 into the screw holes 22. .

  Adjustment of the parallelism of the vertical column members 2 and 3 when the frame structure of the building is constructed with the brace frame 1 of the temporary assembly as described above, one of the upper and lower bolts 14 is slightly loosened, and the head of the bolt 14 is adjusted. In a state where a gap is formed between the portion and the fixing member 12 or 13, the other bolt 14 is rotated, and the bolt receiving member 16 is raised or lowered within the range of the gap, thereby, for example, one vertical column member 2, the vertical position of the other vertical column member 3 and the horizontal parallelism are adjusted, and the vertical parallelism and verticality and vertical position of both vertical column members 2 and 3 are adjusted accurately, and then the other bolt If the head 14 is screwed in until the head comes into contact with the fixing member 12 or 13, the fixing members 12 and 13 and the bolt receiving member 16 are fixed, and the rigidity required for the built-in frame structure can be secured. .

DESCRIPTION OF SYMBOLS 1 Bracing frame 2, 3 Vertical column material 4 Upper bracing material 5 Lower bracing material 6 Adjustable coupling apparatus 7, 8 Crosspiece member 9 End plate 10 End plate 11 Base plate 12 Fixing member 13 Fixing member 14 Bolt 14a Shaft part 15 Fit Joint hole 16 Bolt receiving member 17 Screw hole 18 Reinforcement plate 19 Mounting plate 20 Reinforcement plate 21 Bolt insertion hole 22 Screw hole

Claims (4)

Between the parallel vertical column members (2) and (3), the diagonally upward upper brace material (4) fixed to the upper end of one vertical column member (2) and the lower end of one vertical column member (2) A fixed diagonally upward lower brace material (5) is provided, and an adjustable coupling device (6) connects the gathered end of the upper and lower brace members (4) and (5) and the upper and lower middle part of the other vertical column member (3). It is a brace frame that is assembled and assembled with
The adjustable coupling device (6) is coaxial with the upper and lower brace members (4) and (5) and the gathering end portion and the other vertical column member (3) in the vertical direction. A pair of fixing members (12), (13) fixed in the arrangement of
A bolt that is fixed to either the other end of the gathering end of the upper and lower brace members (4) and (5) and the other vertical column member (3) and fits between the upper and lower fixing members (12) and (13). A receiving member (16);
It consists of a combination of the fixing members (12), (13) and bolts (14) for connecting the upper and lower ends of the bolt receiving member (16),
A bracing frame in which the fixing members (12) and (13) and the bolt receiving member (16) are coupled to each other so that the vertical position can be relatively adjusted with the bolt (14).   In the adjustable coupling device (6), the fixing members (12) and (13) are provided with screw holes (17), and the shaft portion (14a) of the bolt (14) screwed into the screw holes (17) is the fixing member. (12) has a length penetrating through (13), and is provided with a fitting hole (15) in which the shaft (14a) of the bolt (14) is accommodated in the upper and lower ends of the bolt receiving member (16), By fitting the shaft portion (14a) of the upper and lower bolts (14) screwed into the screw holes (17) of the fixing members (12) and (13) into the fitting holes (15), the upper and lower fixing members (12), The brace frame according to claim 1, wherein the bolt receiving member (16) is coupled so as to be adjustable in the vertical position.   In the adjustable coupling device (6), a bolt insertion hole (21) is provided in the fixing members (12) and (13), and the shaft portion (14a) of the bolt (14) inserted through the bolt insertion hole (21). Has a length penetrating the fixing members (12) and (13), and screw holes (22) for screwing the shaft portions (14a) of the bolts (14) are provided at the upper and lower ends of the bolt receiving members (16). Then, by screwing the shaft portion (14a) of the upper and lower bolts (14) inserted through the fixing members (12) and (13) into the screw holes (22), the bolts are received between the upper and lower fixing members (12) and (13). The bracing frame according to claim 1, wherein the member (16) is coupled so that the vertical position can be adjusted.   Two reinforcing plates (20), (20) are welded in parallel to each other on both sides of a reinforcing plate (18) fixed to the other vertical column member (3), and the two reinforcing plates (20), The fixing members (12) and (13) are fixed to the upper and lower ends between (20) by welding, respectively, and the bolt receiving member (16) is an aggregate end of the upper and lower bracing members (4) and (5). The bolt receiving member (16) is fixed between the two reinforcing plates (20) and (20) by welding to a mounting plate (19) for fixing the plate vertically. Bracing frame as described in.

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