JP2009133180A - Earthquake resistant reinforcing hardware connected with steel pipe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide earthquake resistant reinforcing hardware which can add satisfactory deformation properties while securing earthquake resistant reinforcement. <P>SOLUTION: The earthquake resistant reinforcing hardware is for use in a building that is mounted on a joining part in a building frame in the building, for example, between a post 3 and a horizontal member 4. Three angular steel pipes 2, 2, 2 have identical axial directions. Diagonal lines of sections of respective angular steel pipes 2, 2, 2 constitute a straight line. Corners of the respective angular steel pipes 2, 2, 2 in contact with one another are connected to one another. In the angular steel pipes, preferably, the corners of the steel pipes having identical sections are connected to one another by welding. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a seismic reinforcement hardware for a building.

  In order to ensure the seismic strength of the building, the joint between the pillar and the horizontal member is attached with an L-shaped hardware in plan view or a cane-type hardware passed between the pillar and horizontal member as shown in FIG. It was.

JP-A-8-302834 JP 2001-65066 A

  However, since conventional hardware reinforces wooden structures using the rigidity of the hardware itself, the hardware itself has sufficient strength, fixing wooden parts such as pillars and beams, especially hardware. The stress due to the load concentrates in the vicinity of the attachment portion, which ultimately results in brittle fracture of the timber. Therefore, although the necessary seismic strength can be secured, when a building is destroyed by an excessive load, catastrophic damage occurs due to destruction of the xylem.

  In view of the problems as described above, an object of the present invention is to provide a seismic reinforcement hardware capable of adding sufficient deformation performance while ensuring seismic performance.

  The above-described problem is a seismic reinforcement hardware for a building attached to a joint of a building frame such as a column and a horizontal member, wherein at least two square steel pipes have the same axial direction, and each of the square steel pipes This is solved by the seismic reinforcement hardware in which the corners of the square steel pipes that are in contact with each other are connected in such a manner that the diagonal lines of the cross-sections thereof are in a straight line.

  This seismic reinforcement hardware is composed of at least two square steel pipes, and when a force is applied to the building from the outside, each square steel pipe deforms in cross section and effectively absorbs the seismic energy. Seismic performance can be demonstrated without breaking beams and beams. In other words, the seismic reinforcement hardware made of a square steel pipe can effectively absorb seismic energy by combining the rigidity performance as a steel material and the deformation performance as a steel pipe.

  Furthermore, unlike conventional seismic reinforcement hardware, it is superior in design, and it is possible to add design characteristics, and actively implement seismic reinforcement work that is passive toward implementation from the viewpoint of design characteristics. It becomes possible to do.

  In the above-mentioned seismic reinforcement hardware, in the steel pipe constituting one end of the seismic reinforcement hardware and the steel pipe constituting the other end, on the surface in contact with the building frame such as the pillar or horizontal member of the steel pipe, It is preferable that a hole for fixing the steel pipe is provided.

  In the above-mentioned seismic reinforcement hardware, by using the holes for fixing the steel pipe pillars and horizontal members such as the steel pipe pillars and horizontal members that are in contact with the building frame, It can be easily fixed to the building frame.

In addition, the above-mentioned problem is a seismic reinforcement hardware for a building attached to a joint of a building frame such as a pillar and a horizontal member,
A cross-sectional L-shaped base plate attached in close contact with the corners;
At least two or more square steel pipes have the same axial direction, and a reinforcing part in which the corners of each square steel pipe that are in contact with each other are connected in such a manner that the diagonal lines of the respective cross sections of the square steel pipes are in a straight line. Become
The base plate is provided with holes for fixing to the building frame,
The problem can also be solved by the seismic reinforcement hardware in which the square steel pipes of the reinforcing portions are respectively fixed to the two surfaces of the base plate.

  This seismic reinforcement hardware consists of a reinforcement part composed of at least two square steel pipes and a base plate attached to the joint of the building's frame, providing sufficient seismic performance and the reinforcement part being a base plate Since it is attached to the building frame via the part, it is possible to efficiently perform the construction of the seismic reinforcement hardware.

  In this seismic reinforcement hardware, the length of each side of the base plate is preferably longer than the length of the reinforcing portion.

  By making the length of each side of the base plate longer than the length of the reinforcing part, it is possible to efficiently fix the base plate part to the building frame by avoiding the reinforcing part when fixing the seismic reinforcement hardware to the building frame. In addition to improving the workability, it is possible to effectively realize transmission of force from the building frame to the reinforcing portion when receiving external force.

  Further, in the above-mentioned seismic reinforcement hardware, the square steel pipes may be formed of separate square steel pipes, and the separate square steel pipes may be connected by welding to constitute the earthquake resistance reinforcement hardware.

  Because the square steel pipes that make up the seismic reinforcement hardware are made up of separate square steel pipes, they can be manufactured using existing square steel pipes for the production of this seismic reinforcement hardware. This seismic reinforcement hardware can be manufactured at low cost. Moreover, since the load characteristic of this seismic reinforcement metal fitting becomes clear because the load characteristic of the square steel pipe which comprises is clear, the seismic reinforcement metal hardware effective with respect to a required seismic strength can be set.

  Moreover, in said earthquake-resistant reinforcement metal fitting, it is good for each square-shaped steel pipe which comprises an earthquake-resistant reinforcement hardware to have the same cross section.

  Since each square steel pipe constituting the earthquake-resistant reinforcement hardware has the same cross-section, the existing earthquake-resistant reinforcement hardware can be manufactured using the existing square steel pipe, and this earthquake-resistant steel pipe can be manufactured at an even lower cost. Reinforcement hardware can be produced.

  Moreover, the subject of this invention is the earthquake-proof reinforcement hardware of the building attached to the junction part of a building, such as a pillar and a horizontal member, Comprising: At least 2 or more steel pipes have the same axial direction, and the outer periphery of the said steel pipe is touching each other. It is also solved by a seismic reinforcement hardware characterized in that the outer peripheries of the steel pipes connected to each other are connected in an arranged manner.

  Even in this configuration, when external force is applied to the building, each square steel pipe is deformed to effectively absorb the seismic energy and exhibit seismic performance without destroying columns and beams. it can. In other words, the seismic reinforcement hardware made of a square steel pipe can effectively absorb seismic energy by combining the rigidity performance as a steel material and the deformation performance as a steel pipe.

  Furthermore, unlike conventional seismic reinforcement hardware, it is superior in design, and it is possible to add design characteristics, and actively implement seismic reinforcement work that is passive toward implementation from the viewpoint of design characteristics. It becomes possible to do.

  Since the present invention is as described above, it is possible to provide a seismic reinforcement hardware capable of adding sufficient deformation performance while securing strength in seismic reinforcement.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is an example in which the seismic reinforcement hardware 1 of the first embodiment is applied as seismic reinforcement between a wooden column and a base. 3 is a pillar and 4 is a foundation.

  As shown in FIG. 2, the seismic reinforcement hardware 1 is composed of square steel pipes 2, 2, 2 having the same cross section, the axis directions of the respective square steel pipes are the same direction, and the diagonal lines of the cross sections of the respective square steel pipes are straight. In this manner, the corner portions 2a of the respective square steel pipes that are in contact with each other are connected to each other.

  And the square steel pipe which comprises one edge part of the seismic reinforcement metal fitting 1, Comprising: The surface which touches the housing of a building is provided with two or more screw insertion holes 2b ... for fixing a steel pipe to a housing with a screw. The surface of the square steel pipe opposite to the surface in contact with the housing of the building, corresponding to the insertion hole 2b, is a hole 2c for inserting a tool when fixing a screw. Is provided.

  Similarly, a square steel pipe constituting the other end of the seismic strengthening hardware 1 is inserted into the surface in contact with the building frame and the surface opposite to the surface to insert a screw. Are provided with holes 2b,.

  The earthquake-proof reinforcement hardware 1 is manufactured by the following procedure. As shown in FIG. 3 (a), the square steel pipe is cut into the same dimensions in consideration of the width dimensions of the pillars and foundations on the building frame mounting side. Then, as shown in FIG. 3 (b), the square steel pipes 1, 1, 1 having the same cross section and the same length have the same axial direction, and the diagonal lines of the cross sections of the respective square steel pipes 1, 1, 1 are The square portions 2a of the respective square steel pipes that are in contact with each other are aligned so as to be in a straight line, and the mating portions are fixed by welding.

  The holes 2b..., 2c... Provided in the square steel pipes 1 and 1 constituting the end portion of the seismic reinforcement hardware 1 may be provided before or after joining the respective square steel pipes by welding.

  Installation of the seismic reinforcement hardware 1 between the pillars and foundations of the building frame is performed as follows. As shown in FIG. 4, the seismic reinforcement hardware 1 is installed between the pillar 3 and the base 4, the screw 5 is inserted through the hole 2 c... And the screw 5 is fixed to the pillar 3 and the base 4 by the driver 6.

  When a load is applied to the building to which the seismic reinforcement hardware 1 is attached due to an earthquake or the like, each of the square steel pipes 1, 1 of the seismic reinforcement hardware 1 constituted by connecting the square steel pipes 1 as shown in FIG. 1 is deformed by the shape characteristics of the steel pipe, and can exhibit seismic performance without destroying columns or beams. In other words, the seismic reinforcement hardware made of a square steel pipe can effectively absorb seismic energy by combining the rigidity performance as a steel material and the deformation performance as a steel pipe.

  Furthermore, unlike conventional seismic reinforcement hardware, it is excellent in design, and it is possible to add design properties.For example, by using a part of the interior material attached to the wall surface or using a transparent material, the housing The seismic reinforcement hardware 1 attached to the inside can be visually recognized from the room side or the like, and the design can be positively utilized. Furthermore, the steel pipe part can be used as a gap part of the wall and used as a storage shelf or a display shelf. And it becomes possible to implement | achieve the earthquake-proof reinforcement construction which is passive toward implementation from a design viewpoint.

  FIG. 6 shows a second embodiment of the present invention. In the seismic strengthening hardware 7 of the second embodiment, 8 is a base plate, and 9 is a reinforcing portion formed by integrating the square steel pipes 2. The base plate 8 is made of an L-shaped plate in cross-sectional view, and the width dimension thereof is substantially the same as the width dimension of the pillars and beams that are the building frame as shown in FIG. The length dimension of each surface of the base plate is based on the length dimension of the connected square steel pipes 2 .. that is the reinforcing part, that is, the dimension projected on the housing when the square steel pipe is attached to the building chassis as a cane. Is also getting longer.

Each surface of the base plate portion has a hole 10 for fixing the seismic strengthening hardware 7 to a pillar or beam which is a building frame in the building frame. As shown in FIG. 7, the seismic reinforcement hardware 7 is fixed to the building frame by the fixing bolts 11 using the holes 10.

  As in the first embodiment, the square steel pipes 2 are connected to each other by welding or the like to form a reinforcing part 9, and the integrated square steel pipes 2 are also welded to the base plate 8. The seismic reinforcement hardware 7 is constituted by integration with the above. The width dimension of the square steel pipe 2 is set to be shorter than the width dimension of the base plate 8 and is fixed so as to be positioned at the center in the width direction of the base plate 8. A hole 10 through which a fixing bolt 11 and the like are passed is provided at a predetermined interval in a side portion where the reinforcing portion 9 of the base plate 8 is fixed.

  This seismic reinforcement hardware consists of a reinforcing part composed of at least two square steel pipes and a base plate attached to the corner of the building's housing, providing sufficient seismic performance, and the reinforcing part Since it is attached to the building frame via the base plate portion, it is possible to efficiently perform the construction of the seismic reinforcement hardware.

  In addition, by making the length of one side of the base plate larger than the length of the reinforcing part, the base plate part can be efficiently fixed to the building frame by avoiding the reinforcing part when fixing the seismic reinforcement hardware to the building frame. In addition to improving the workability, it is possible to effectively transmit force from the building frame to the reinforcement when receiving external force.

  FIG. 8 shows another embodiment of the seismic reinforcement hardware. (A) is an example in which the seismic reinforcement hardware is composed of four square steel pipes. (B) is an example in which the seismic reinforcement hardware is composed of square steel pipes having different shape sections. (C) is an example in which the seismic reinforcement hardware is composed of a round steel pipe. (D) is an example in which the seismic reinforcement hardware is composed of triangular and square steel pipes.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above-described embodiment, the case where the seismic reinforcement hardware is configured by joining separate square steel pipes by welding has been described, but they may be joined by a method other than welding. Further, it may be manufactured as an integral unit from the beginning by molding or the like. In short, it may be manufactured in a manner that satisfies the strength required as a seismic reinforcement hardware.

  Moreover, in the said embodiment, although shown about the case where the length of each square steel pipe which comprises a seismic reinforcement metal fitting was the same, the balance of the intensity | strength and design property which are requested | required of a seismic reinforcement metal fitting also about the length of each square steel pipe You can choose freely.

  In addition, as a variation of the seismic reinforcement hardware, an example in which the seismic reinforcement hardware is composed of four square steel pipes, an example in which the seismic reinforcement hardware is composed of square steel pipes with different shapes and cross sections, An example composed of a round steel pipe (the case where the seismic reinforcement hardware is composed of a triangular and square steel pipe has been shown, but it is needless to say that it may be composed of a plurality of combinations thereof.

  Moreover, although the case where this reinforcement hardware was applied to the wooden frame structure as an Example was shown, you may apply to a steel frame structure. Furthermore, it is needless to say that not only the earthquake-resistant reinforcement hardware is additionally attached to the post-construction property, but also it may be attached for earthquake-proof reinforcement from the beginning of construction in the newly constructed property.

(A) is a side view showing an example in which the seismic reinforcement hardware of the present invention is attached between a pillar and a base. (B) is a front view of the same. It is a perspective view which shows a seismic reinforcement hardware. It is a side view which shows the manufacturing process of a seismic reinforcement metal fitting, Comprising: (a) is a square steel pipe before joining, (b) is a side view which shows the square steel pipe after joining. It is a side view which shows the condition which attaches a seismic reinforcement hardware to a building frame. It is a side view which shows the state of a seismic reinforcement hardware when a load is applied to the building frame which attached the seismic reinforcement hardware. It is a figure which shows 2nd Embodiment of this invention, Comprising: (a) is a side view, (b) is a front view, (c) is a top view. It is a figure which shows 2nd Embodiment of this invention, Comprising: It is a perspective view which shows the state attached to the building frame. It is a figure which shows the other Example of this invention, Comprising: (a) is a side view which shows the Example in which the seismic reinforcement hardware was comprised by the four square steel pipes, (b) is an earthquake-resistant reinforcement metal A side view showing an embodiment composed of square steel pipes with different shape cross sections, (c) is a side view showing an embodiment in which the seismic reinforcement hardware is composed of round steel pipes, (d) It is a side view which shows the Example by which the earthquake-proof reinforcement metal fitting was comprised with the triangle and the square-shaped steel pipe. It is a figure which shows the conventional earthquake-proof reinforcement metal, Comprising: (a) is a side view which shows an attachment state, (b) is a side view which shows the destruction condition by the side of a housing | casing when a load is applied.

Explanation of symbols

1 ... Seismic reinforcement hardware (first embodiment)
2 ... Square steel pipe 2a ... Square part of square steel pipe 2b ... Hole (for inserting screws)
2c ... hole (for inserting a tool)
3 ... Pillar 4 ... Base 5 ... Seismic reinforcement hardware (2nd Embodiment)
6 ... Base plate 7 ... Reinforcement part 8 ... Base plate 9 ... Reinforcement part 11 ... Bolt

Claims (7)

  A seismic reinforcement metal fitting for a building attached to a joint of a building frame such as a column and a horizontal member, wherein at least two square steel pipes have the same axial direction, and the diagonal lines of the respective cross sections of the square steel pipes are A seismic reinforcement metal fitting characterized in that corner portions of each square steel pipe which are in contact with each other are connected in a straight line.   In the steel pipe constituting one end of the seismic strengthening hardware and the steel pipe constituting the other end, a hole for fixing the steel pipe is provided on a surface in contact with the building frame such as a column or a horizontal member of the steel pipe. The earthquake-proof reinforcement metal fitting according to claim 1 provided with. It is a seismic reinforcement hardware for buildings that is attached to the joints of building structures such as pillars and horizontal members,
A cross-sectional L-shaped base plate attached in close contact with the corners;
At least two or more square steel pipes have the same axial direction, and a reinforcing part in which the corners of each square steel pipe that are in contact with each other are connected in such a manner that the diagonal lines of the respective cross sections of the square steel pipes are in a straight line. Become
The base plate is provided with holes for fixing to the building frame,
A seismic reinforcement metal fitting, wherein the square steel pipes of the reinforcing portions are respectively fixed to two surfaces of the base plate.   The seismic reinforcement hardware according to claim 3, wherein a length of each side of the base plate is longer than a length of the reinforcing portion.   The seismic reinforcement hardware according to any one of claims 1 to 4, wherein each of the square steel pipes is a separate square steel pipe, and the separate square steel pipes are connected by welding.   6. The seismic reinforcement hardware according to claim 1, wherein each square steel pipe constituting the seismic reinforcement hardware has the same cross section.   A seismic reinforcement metal fitting for a building attached to a joint of a building such as a column and a horizontal member, wherein at least two steel pipes have the same axial direction and are arranged in contact with each other on the outer periphery of the steel pipe. Seismic reinforcement hardware characterized in that the outer peripheries of each other are connected to each other.

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