JP6417110B2 - Brace structure - Google Patents

Description

  The present invention relates to a brace structure that suppresses deformation of a building.

  Patent Document 1 discloses a brace structure in which a brace disposed between nodes of a column and a beam is configured to be bent or stretchable. In this brace structure, the brace material is rotatably provided by pin support. Alternatively, the force in the compression direction applied to the brace material is released by engaging a pin with a long hole slit formed in the brace material.

  Patent Document 2 discloses a brace structure that can suppress a decrease in the effect of tension due to looseness of the brace in a structure in which the brace is arranged in a tensile manner. Specifically, a pair of metal braces are provided with a turnbuckle and arranged in a cross form in a rectangular frame structure as a tension type, and the ends of the metal braces are not directly connected to the brace sheet. Rather, it is connected to a brace holding mechanism fixed to the brace sheet. This brace holding mechanism engages and fixes the metal brace in the pulling direction, but allows movement in the direction opposite to the pulling direction.

Japanese Utility Model Publication No. 62-16650 JP 2002-34895 A

  However, in the structure described in Patent Document 1, since a pin support structure is used, the member cost increases and the construction becomes complicated. Moreover, the structure of patent document 2 has a complicated structure of the said brace holding mechanism, and its construction is also complicated.

  This invention makes it a subject to provide the brace structure which can open | release the force of the compression direction added to a brace material in view of said situation, reduces member cost, and becomes easy to construct.

  The brace structure of the present invention is a brace structure that suppresses deformation of a building due to a lateral force by a tensile force, an engagement hole provided in a joint portion, an annular member that is passed through the engagement hole, And a brace member having an end coupling portion coupled to the annular member, wherein the annular member is rotatably engaged with the engagement hole.

  If it is said structure, since the said annular member is engaged with the said engagement hole so that rotation is possible, it will become easy to open | release the force of the compression direction added to the said brace material by the said brace material curving. And since release | release of such force is realizable not by the pin structure of the past but by the said annular member being rotatably engaged with the said engagement hole, a member cost can be reduced and construction is also easy. become. In addition, it is possible to control the generation of secondary stress, additional stress, and the like with respect to actual dynamic repeated horizontal loads such as during an earthquake.

  The annular member may be screwed to one end side of the end connecting portion, and the brace material may be screwed to the other end side of the end connecting portion. Alternatively, the annular member may be screwed into the end connecting portion, and the brace material may be fixed to the end connecting portion.

  A restricting portion that restricts the direction of bending when a compressive force is applied to the brace material may be provided. According to this, the direction of the curve when the compressive force is applied to the brace material is limited to the in-plane direction of the wall, and the wall breakage due to the brace material can be reliably prevented.

  Further, the brace structure of the present invention is the brace structure in which the deformation of the building due to the lateral force is suppressed by the tensile force, the engagement hole provided in the joint portion, and the annular member that is passed through the engagement hole; And a brace material having an end connecting portion connected to the annular member, and the annular member is movably engaged with a long hole formed in the end connecting portion.

  If it is said structure, since the said annular member is movably engaged with the long hole of the said end connection part, the force of the compression direction added to the said brace material will be open | released by the movement in the said long hole. Can do. And since release | release of such force can be implement | achieved by making the said cyclic | annular member engage with the long hole of the said end connection part instead of a conventional pin structure, it can reduce member cost and also becomes easy to construct.

  A turnbuckle is used as the end connecting portion, and the brace material may be screwed into the turnbuckle. According to this, since the turnbuckle, which is a general-purpose product with a brace structure, is used, it is possible to suppress the occurrence of new design costs and the like.

  A plate-like member may be used as the end connecting portion, and the plate-like member may be fixed to the brace material.

  The annular member may consist of two substantially U-shaped members with male threads and two long nuts that are screwed onto the male threads. Further, the two substantially U-shaped members are connected to form a substantially parallelogram shape, so that an eccentricity is generated between the portion that is passed through the engagement hole of the annular member and the engagement portion of the end connecting portion. The two braces that occur and intersect may be arranged in a spaced state.

  The engagement hole may be formed in a horizontal or vertical plate fixed to a column or a base plate of the column. According to this, the engagement hole can be easily formed in the column.

  If it is this invention, there exists an effect that construction which can open | release the force of the compression direction added to a brace material can be implement | achieved easily at low cost.

It is explanatory drawing which showed a part of brace structure which concerns on one Embodiment of this invention. It is the perspective view which showed the hexagonal long nut in FIG. It is the perspective view which showed the annular member in FIG. It is the figure which showed the lower side joint part periphery of the brace structure which concerns on one Embodiment of this invention, The figure (A) is a front view, The figure (B) is a side view, The figure (C) is a top view It is. FIG. 4A is an explanatory diagram for explaining the external force applied to the brace, and FIG. 4B is an explanatory diagram showing the periphery of the lower joint in FIG. 4 when the external force is applied. FIG. 4A is an explanatory diagram for explaining the external force applied to the brace, and FIG. 4B is an explanatory diagram showing the periphery of the lower joint in FIG. 4 when the external force is applied. FIGS. 4A and 4B are explanatory views showing an example in which a restriction plate is provided in the brace structure of FIG. The same figure (A) is explanatory drawing which showed the other example of the annular member, and the same figure (B) is explanatory drawing which showed the example of a connection with a hexagonal long nut. It is explanatory drawing which showed the example of a coupling | bonding of a mountain-shaped brace and a hexagonal long nut. It is explanatory drawing which showed the example of a coupling | bonding of a groove-shaped brace and a hexagonal long nut. It is explanatory drawing which showed the lower side joint part periphery of the brace structure which concerns on other embodiment of this invention. 11A is an explanatory view showing the turnbuckle in FIG. 11, and FIG. 11B is an explanatory view showing the annular member in FIG. FIG. 11A is an explanatory diagram for explaining the external force applied to the brace, and FIG. 12B is an explanatory diagram showing the periphery of the lower joint portion in FIG. 11 when the external force is applied. FIG. 11A is an explanatory diagram for explaining the external force applied to the brace, and FIG. 12B is an explanatory diagram showing the periphery of the lower joint portion in FIG. 11 when the external force is applied. It is explanatory drawing which showed the example of a coupling | bonding of a mountain-shaped brace and a board member. It is explanatory drawing which showed the example of a coupling | bonding of a groove-shaped brace and a plate member. It is the figure which showed the lower joint part periphery of the brace structure which concerns on other embodiment of this invention, the figure (A) is a front view, the figure (B) is a side view, and the figure (C) is a plane. FIG. It is the figure which showed the lower joint part periphery of the brace structure which concerns on other embodiment of this invention, the figure (A) is a side view, and the figure (B) is a top view. It is explanatory drawing which showed an example of the engagement hole formed in the vertical plate of FIG. It is the figure which showed the lower joint part periphery of the brace structure which concerns on other embodiment of this invention, the figure (A) is a front view, The figure (B) is explanatory drawing which showed an example of the annular member. is there. The same figure (A), the same figure (B), and the same figure (C) are explanatory drawings which showed the example of an assembly | attachment of the cyclic | annular member used with the brace structure which concerns on other embodiment of this invention. It is explanatory drawing which showed an example of the annular member used with the brace structure concerning other embodiment of this invention. It is explanatory drawing which showed the example which eccentrically arranges the brace which cross | intersects using the annular member shown in FIG. It is explanatory drawing which showed the brace structure which concerns on other embodiment of this invention. It is explanatory drawing which showed the brace structure which concerns on other embodiment of this invention.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in FIG. 1, a male threaded portion 1a on one end side of a brace material 1 made of round steel is screwed to a female threaded portion on one end side of a hexagonal long nut 2 also shown in FIG. The hexagonal long nut 2 forms an end connecting portion in the brace material 1. An annular member 3 is attached to the female thread portion on the other end side of the hexagonal long nut 2.

  As shown in FIG. 3, the annular member 3 is obtained by extending a semi-cylindrical divided rod-shaped portion 3 b at both ends of the C-shaped main body portion 3 a. There is a gap between the inner surfaces of the divided bar portions 3b. Further, the tip of the divided bar-like portion 3b is formed sharp. And the external thread part is formed in the outer surface of the said division | segmentation rod-shaped part 3b. The male threaded portion can be formed, for example, by clamping the root portion of the divided rod-shaped portion 3b, and mounting and turning a die on the divided rod-shaped portion 3b that has a cylindrical shape without the gap.

  As shown in FIGS. 4 (A), 4 (B), and 4 (C), a base plate 51 of a column 5 made of H-shaped steel is fixed to a foundation by anchor bolts 52. A plate 53 is horizontally welded and fixed to the lower portion of the column 5 serving as a joint, and an engagement hole 53a is formed in the plate 53 in the vertical direction.

  The annular member 3 is passed through the engagement hole 53a. Since the gap is formed in the annular member 3, the annular member 3 can be smoothly passed through the engagement hole 53a. The annular member 3 passed through the engagement hole 53a engages with the engagement hole 53a in a rotatable manner.

  Here, after the one end side of the hexagonal long nut 2 is deeply screwed into one end side of the brace material 1, the distal end side of the split rod-like portion 3b in the annular member 3 passed through the engagement hole 53a is set. The hexagonal long nut 2 is turned while being positioned at the other end of the hexagonal long nut 2. If it does in this way, while the screwing length in the said brace material 1 side will become short, the said division | segmentation rod-shaped part 3b of the said annular member 3 will screw together with the internal thread part of the said hexagonal long nut 2. FIG. Since the tip end side of the split bar-like part 3b is sharp, the split bar-like part 3b can be guided and screwed into the female screw part without difficulty.

  For example, the other end side of the brace material 1 is bolted to a brace sheet (not shown) provided in the upper joint. The brace material 1 is provided with a turn buckle (not shown), and the brace material 1 can be provided in a tensioned state between the brace sheet and the plate 53 by turning the turn buckle.

  In addition, another brace material is provided in the same connection mode using the said annular member 3 etc. so that the said brace material 1 may be cross | intersected.

  As shown in FIG. 5A, the AD brace provided between the joints A and D is pulled when an external force P1 is applied from the left to the right in the drawing, and the brace structure of the present embodiment can be obtained. The AD brace possessed maintains the state shown in FIG. The BC brace intersecting with the AD brace receives a compressive force at this time.

  On the other hand, as shown in FIG. 6A, the AD brace is compressed when an external force P2 is applied from the right to the left in the figure, and the AD brace is curved as indicated by a two-dot chain line, for example. . And as shown to the same figure (B), AD brace which has the brace structure of this embodiment rotates in the joint part A when the said curvature arises. The BC brace that intersects with the AD brace is subjected to a tensile force at this time.

  Thus, since the annular member 3 is rotatably engaged with the engagement hole 53a, the force in the compression direction applied to the brace material 1 is easily bent and released. And since release | release of such force is realizable not by the pin structure like the past but by the said annular member 3 being engaged with the said engagement hole 53a so that rotation is possible, while being able to reduce member cost and construction Will also be easier.

  When the engagement hole 53 a is formed in the plate 53 fixed to the column 5, the engagement hole 53 a can be easily formed in the column 5.

  As shown in FIGS. 7A and 7B, the two limiting plates 6 may be fixed by welding, for example, in the vicinity of the engagement hole 53a on the plate 53. The limiting plate 6 is provided so as to limit the rotation of the annular member 3 so that the annular member 3 rotates in a vertical plane. When such a restriction is performed, the brace material 1 is curved in the vertical plane, and the brace material 1 is curved out of the vertical plane and the wall is destroyed. In addition, if a projection is formed on the annular member 3 as a limiting portion, and the projection is positioned so as to contact the upper side of the plate 53 on the side of the joint A, the upward bending of the brace material 1 is limited. Thus, the brace material 1 is curved only downward.

  A rotatable type annular member 3 shown in FIGS. 8A and 8B can also be used. In the annular member 3, the male thread portion of the split rod-like portion 3b in a separated state forms an arc along a circle in such a separated state. The male threaded portion can be formed, for example, by attaching a die to the split rod-like portion 3b and turning it with the spacer 31 interposed between the split rod-like portions 3b. Also when the annular member 3 is screwed into the hexagonal long nut 2, the spacer 31 is interposed between the divided rod-like portions 3 b. In addition, in order to prevent the spacer 31 from coming off, bolts and bolts are formed in the through holes formed in the hexagonal long nut 2, the through holes formed in the split rod-like portion 3 b, and the through holes formed in the spacer 31. You may make it pass the nut 7 or the split pin which is not illustrated.

  As shown in FIG. 9, angle steel (equilateral steel) can be used as the brace material 1, and in this case, the hexagonal long nut 2 can be fixed to the brace material 1 by welding. Further, as shown in FIG. 10, even when groove steel is used as the brace material 1, the hexagonal long nut 2 can be fixed to the brace material 1 by welding.

Next, other embodiments will be described. As shown in FIG. 11, the male screw portion 1a on one end side in the brace material 1 made of round steel is screwed into the female screw portion on one end side in the turnbuckle 2A also shown in FIG. The turnbuckle 2 </ b> A forms an end connecting portion of the brace material 1. A slot 21 is formed in the turnbuckle 2A. A movable type annular member 3 </ b> A is engaged with the long hole 21.

  As shown in FIG. 12 (B), the annular member 3A has a nut portion 3d on one of the two separated end portions in the frame-shaped main body portion 3c, and a bolt insertion hole 3e on the other side. The bolt 3f passed through the bolt insertion hole 3e can be screwed into the nut portion 3d. The height of the frame-shaped main body 3c is set slightly higher than the turnbuckle 2A.

  The annular member 3A is passed through an engagement hole 53a formed in the plate 53. Since the annular member 3A has the separated portion, the annular member 3A can be smoothly passed through the engagement hole 53a. The annular member 3A is passed through the long hole 21 in the turnbuckle 2A, and the annular member 3A and the turnbuckle 2A can move relative to each other.

  The other end side of the brace material 1 is bolted to, for example, a brace sheet (not shown) provided at the upper joint. The brace material 1 is provided with another turnbuckle for providing the brace material 1 in a tensioned state between the brace sheet and the plate 53.

  As shown in FIG. 13 (A), the AD brace provided between the joints A and D is pulled when an external force P1 is applied from the left to the right in the drawing, and the brace structure of the present embodiment is obtained. The AD brace possessed maintains the state shown in FIG. That is, the annular member 3A maintains a state in which it is pressed against the end of the long hole 21 in the turnbuckle 2A. The BC brace intersecting with the AD brace receives a compressive force at this time.

  On the other hand, as shown in FIG. 14A, the AD brace is compressed when an external force P2 is applied from the right to the left in the drawing. In this compressed state, as shown in FIG. 5B, in the AD brace having the brace structure of the present embodiment, the turnbuckle 2A moves toward the joint A at the joint A. The BC brace that intersects with the AD brace is subjected to a tensile force at this time.

  As described above, since the annular member 3A is movably connected to the long hole 21 formed in the turnbuckle 2A that is the end connecting portion of the brace material 1, the force in the compression direction applied to the brace material 1 is It can be opened by movement in the long hole 21. And since release | release of such force can be implement | achieved by connecting the said cyclic | annular member 3A to the long hole 21 of the said turnbuckle 2A instead of the conventional pin structure, it can reduce member cost and also becomes easy to construct. .

  If the turnbuckle 2A is used as the end connecting portion, a turnbuckle, which is a general-purpose product of a brace structure, is used, so that new design costs and the like can be suppressed.

  As shown in FIG. 15, angle steel (equilateral steel) can be used as the brace material 1, and a plate member 2 </ b> B can be used instead of the turnbuckle 2 </ b> A. In this case, the plate member 2B can be fixed by welding to the brace material 1, and a long hole 21 is formed in the plate member 2B. Further, as shown in FIG. 16, it is possible to use channel steel as the brace material 1. In this case, the plate member 2B can be fixed by welding to the brace material 1, and a long hole is formed in the plate member 2B.

  As shown in FIGS. 17 (A), 17 (B), and 17 (C), a plate (brace sheet) 54 is welded and fixed perpendicularly to the web of the column 5 made of H-section steel and the base plate 51, An engagement hole 54a may be formed in the plate 54 in the lateral direction. According to this, it is easy to pass the annular member 3 through the engagement hole 54a. The arrangement position of the plate 54 may be provided not at the center between the flanges of the H-shaped steel but at a position close to one side. Further, when the engagement hole 54a is formed at a position protruding from the flange, there is no interference with the flange, so that it becomes easier to pass the annular member 3 through the engagement hole 54a.

  Further, as shown in FIGS. 18A and 18B, the annular member 3 having the structure shown in FIG. 8 may be passed through the engagement hole 54a of the vertical plate 54.

  As shown in FIG. 19, when the engagement hole 54a is a long hole that is horizontally or obliquely long, the annular member 3 can be easily inserted into the engagement hole 54a. Further, in the engagement hole 54a, a fitting portion 54b may be formed which is concave on the side where the annular member 3 is pulled and into which the annular member 3 is fitted as much as possible. Such a fitting part 54b functions as a restricting part that restricts the direction of bending when the compressive force is applied to the brace material 1 to the in-plane direction of the wall, and can reliably prevent wall breakage due to the brace material 1. It becomes like this. In addition, the direction where the circular arc-shaped part of the said annular member 3 fitted to the said fitting part 54b is linear becomes easy to function as the said restriction | limiting part.

  20 (A) and 20 (B), a movable type annular member having a male screw portion 3g at both ends of the main body portion 3c, and a long nut 3h screwed to one of the male screw portions 3g. 3A can be used. Such an annular member 3A bends the rod-like material in a state where the long nut 3h is screwed to one male screw portion 3g of the rod-like material (main body portion 3c) having the male screw portions 3g formed at both ends. It is obtained with.

  As shown in FIGS. 21 (A), 20 (B), and 20 (C), a movable type annular member 3A in a divided form may be used. The annular member 3A includes a U-shaped first main body 3i, a second main body 3j, and two long nuts 3h. Male screw portions 3g are formed at both ends of the first main body portion 3i and the second main body portion 3j. The first main body 3i is passed through the engagement hole 54a of the vertical plate 54, and the long nut 3h is screwed into the male screw 3g. Then, the second main body portion 3j is passed through the elongated hole of the turnbuckle 2A, the male screw portion 3g of the second main body portion 3j is butted against the male screw portion 3g of the first main body portion 3i, and the long nut 3h is connected to the second main body portion. It is screwed into 3g male thread 3g.

  As shown in FIG. 22, a distortion U-shape that forms a parallelogram when the first main body 3i and the second main body 3j are brought into contact with each other may be employed. According to this, the position of the turnbuckle 2A, that is, the position of the end connecting portion 2A (brace material 1) can be decentered with respect to the position of the plate 54. Therefore, as shown in FIGS. 23 (A) and 23 (B), the eccentric direction of the brace material 1 of the AD brace and the eccentric direction of the brace material 1 of the BC brace that are arranged to cross each other are opposite to each other. It becomes possible to make it the structure which prevents the rubbing sound etc. of each other. In other words, the first main body portion 3i and the second main body portion 3j, which are the two substantially U-shaped members, are connected to form a substantially parallelogram shape, thereby forming the engagement hole 54a of the annular member 3A. Eccentricity is generated between the passing portion and the engaging portion of the end connecting portion 2A, and two intersecting braces can be arranged in a separated state.

  As shown in FIG. 24, while using the movable type annular member 3A and the turnbuckle 2A which are the above-mentioned division types, the turnbuckle 2A is fixed to the brace material 1 made of channel steel with nuts and bolts 11. You may do it. The brace material 1 made of the above-mentioned channel steel is provided with two channel steels back to back, and through holes through which the nuts and bolts 11 are passed are formed at the ends of both channel steels. .

  As shown in FIG. 25, the brace using the rotary type annular member 3 or the movable type annular member 3A described above is provided with the brace sheet 55 of the intermediate pillar 5A provided between the pillars 5 and 5, as shown in FIG. You may do it. According to this, problems such as rubbing noise of intersecting braces do not occur. Moreover, the length of the brace material 1 in each brace can be shortened. Moreover, if the brace material 1 which consists of the said channel steel material is used as this brace material 1 and the length can be shortened, it can make it difficult to produce the deformation | transformation of the said brace material 1 at the time of compression.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

1 Brace material 2 Hexagonal long nut (End connecting part)
2A Turnbuckle (end connecting part)
2B Plate member (end connecting part)
21 long hole 3 annular member 3A annular member 5 pillar 53 plate 53a engagement hole 54 plate 54a engagement hole 54b fitting part (restriction part)
6 Restriction plate (restriction part)

Claims (10)

In a brace structure that suppresses deformation of a building due to a lateral force by a tensile force, an engagement hole provided in a joint portion and a gap for passing through the engagement hole can be formed and is passed through the engagement hole. An annular member capable of closing the gap and a brace material having an end coupling portion coupled to the annular member, and the annular member is rotatably engaged with the engagement hole. Brace structure.   The brace structure according to claim 1, wherein the annular member is screwed to one end side of the end connecting portion, and the brace material is screwed to the other end side of the end connecting portion. .   The brace structure according to claim 1, wherein the annular member is screwed into the end connecting portion, and the brace material is fixed to the end connecting portion.   The brace structure according to any one of claims 1 to 3, further comprising a limiting portion that limits a direction of bending when a compressive force is applied to the brace material. In a brace structure that suppresses deformation of a building due to a lateral force by a tensile force, an engagement hole provided in a joint portion and a gap for passing through the engagement hole can be formed and is passed through the engagement hole. An annular member capable of closing the gap and a brace material to which the end connecting portion is connected to the annular member, and the annular member is movably engaged in a long hole formed in the end connecting portion. Brace structure characterized by being combined.   6. The brace structure according to claim 5, wherein a turnbuckle is used as the end connecting portion, and the brace material is screwed into the turnbuckle.   6. The brace structure according to claim 5, wherein a plate-like member is used as the end connecting portion, and the plate-like member is fixed to the brace material.   The brace structure according to any one of claims 5 to 7, wherein the annular member includes two substantially U-shaped members with male threads and two long nuts that are screwed into the male threads. Brace structure characterized by   9. The brace structure according to claim 8, wherein the two substantially U-shaped members are connected to form a substantially parallelogram shape, thereby passing through the engagement hole of the annular member and the end connecting portion. The brace structure is characterized in that an eccentricity is generated at the engagement portion of the two, and two intersecting braces are arranged in a separated state.   The brace structure according to any one of claims 1 to 9, wherein the engagement hole is formed in a horizontal or vertical plate fixed to a column or a base plate of the column. Construction.

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