JP3196272U - Seismic strengthening hardware - Google Patents

Abstract

An object of the present invention is to provide a seismic strengthening hardware capable of responding to vertical and horizontal shaking of a building and suppressing loosening of a nut. An upper fixing member attached to a wall surface side of a pillar, a lower fixing member attached to a foundation below the upper fixing member, a bolt and a nut connecting the upper fixing member and the lower fixing member. 13, and two springs 17 a inserted above and below the bolt 11, and the upper fixing member 5 includes a plate-like portion 19 that is long and attached to the wall surface side of the column, and the plate-like portion. The lower fixing member 9 includes a plate-like portion 25 attached to the foundation and a plate-like portion 25 extending horizontally in the lower portion and having a hole into which the bolt 11 is inserted. It consists of a lower extension part 27 extending horizontally in the upper part and having a hole for inserting the bolt 11, and the two springs 17 a are arranged above the upper extension part 23 and below the lower extension part 27. Each arranged , It is fixed. [Selection] Figure 1

Description

  The present invention relates to a seismic strengthening hardware of a building.

  As a conventional earthquake-resistant structure, for example, there is a structure in which a spring is attached to an upper portion of an anchor bolt for fixing a foundation and a pillar of a building.

  And when the tensile force of the vertical direction arises, it was preventing that a building was damaged by extending | stretching an attachment metal fitting (refer patent document 1).

  In Patent Document 1, a support cylinder in which a fixing part fixed to a pillar by a plurality of nails, screws, or the like is formed, and one end part is slidably inserted into the support cylinder, and the other end part is a base or When an operating rod fixed to the anchor bolt of the base with a nut and a tensile force greater than a set value provided in the support tube are applied, the operating rod is pulled out from the support tube, A column mounting bracket comprising a spring that supports the column in a fixed state on the base is disclosed.

JP 2002-364071 A

  However, since the lower part of the anchor bolt is fixed to the foundation, the column mounting bracket described in Patent Document 1 can relieve the vertical pulling force with a spring, but may not be able to cope with the rolling of the building. there were.

  In addition, the nut may become loose due to the vibration of the building.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a seismic strengthening hardware that can cope with vertical and horizontal shaking of a building and suppresses loosening of a nut.

In order to solve the above-mentioned problem, as shown in FIG. 1 to FIG.
An upper fixing member attached to the wall surface of the column, a lower fixing member attached to the foundation below the upper fixing member, a connecting member composed of a bolt and a nut connecting the upper fixing member and the lower fixing member, and above and below the bolt With two inserted springs,
The upper fixing member is composed of a plate-like part that is long on the top and bottom attached to the wall surface side of the column, and an upper extension part that extends horizontally in the lower part of this plate-like part and has a hole for inserting a bolt
The lower fixing member is composed of a plate-like portion attached to the foundation, and a lower extension portion extending horizontally in the upper portion of the plate-like portion and having a hole for inserting a bolt,
The two springs are respectively arranged on the upper side of the upper extension part and the lower side of the lower extension part, and are fixed so as to be pressed against the upper extension part and the lower extension part by the connecting member,
The hole of the upper extension part and the hole of the lower extension part are larger than the diameter of the bolt, and the upper and lower sides of the bolt are movable in opposite directions.

  According to the device according to claim 1, the upper fixing member attached to the wall surface side of the column, the lower fixing member attached to the foundation below the upper fixing member, the upper fixing member and the lower fixing member The upper fixing member includes a plate-like portion that is long and attached to the wall surface side of the column, and a plate-like portion that is attached to the wall surface of the column. The lower fixing member includes a plate-like portion attached to the foundation and a horizontal portion on the upper portion of the plate-like portion. The two springs are arranged on the upper side of the upper extension part and the lower side of the lower extension part. To the bottom and the lower extension Since the hole of the upper extension part and the hole of the lower extension part are larger than the diameter of the bolt and the upper and lower parts of the bolt are movable in the left and right directions, the bolts are moved by springs arranged above and below the bolts. It is possible to suppress the loosening of the nut by pressing the head and nut of the, and to cope with the pitching and rolling of the building.

  The invention related to the seismic strengthening hardware according to claim 2 is characterized in that, for example, as shown in FIG. 1, the upper fixing member is fixed to a base and a pillar.

  According to the invention relating to the seismic strengthened hardware according to claim 2, since the upper fixing member is fixed to the base and the pillar, it is possible to prevent the pillar from coming off from the base.

  The invention related to the earthquake-proof strengthening hardware according to claim 3 further includes, for example, an L-shaped long member in plan view attached to a base and a pillar at the corner of the building, as shown in FIGS. The upper fixing member is attached to the surface of the long member attached to the base and the pillar.

  According to the invention related to the seismic strengthening hardware according to claim 3, since it is further provided with an L-shaped long member that is attached to the base and the pillar at the corner of the building, the pillar at the corner is reinforced. Since the upper fixing member is attached to the surface of the long member attached to the base and the pillar, it is possible to further prevent the pillar from being pulled out from the base.

  The invention related to the seismic strengthening hardware according to claim 4 is characterized in that the plate-like portion of the upper fixing member is a long member having an L shape in plan view.

  According to the invention relating to the seismic strengthened hardware according to claim 4, since the plate-like portion of the upper fixing member is an L-shaped long member in plan view, the column can be reinforced by the upper fixing member.

  The device according to claim 5 is characterized in that the upper fixing member is attached to the wall surface.

  According to the invention relating to the seismic strengthened hardware according to claim 5, since the upper fixing member is attached to the wall surface, the construction cost can be reduced as compared with the case of cutting the wall.

  The invention relating to the seismic strengthening hardware according to claim 6 is, for example, as shown in FIG. 1 to FIG. 4, an upper reinforcing part connecting the plate-like part of the upper fixing member and the upper extension part, and a lower part The lower reinforcement part which connects the plate-shaped part and lower extension part of a fixing member is provided, It is characterized by the above-mentioned.

  According to the invention relating to the seismic strengthened hardware according to claim 6, the upper reinforcing portion connecting the plate-like portion of the upper fixing member and the upper extension portion, and the plate-like portion and the lower extension of the lower fixing member Since the lower reinforcement part which connects the part is provided, the upper fixing member and the lower fixing member can be strongly fixed.

  ADVANTAGE OF THE INVENTION According to this invention, the earthquake-proof reinforcement metal fitting which can respond to the pitching and rolling of a building and suppresses loosening of a nut can be provided.

It is a perspective view which shows an example which attached the earthquake-proof reinforcement metal fitting based on this invention. FIG. 2 is an exploded perspective view of FIG. 1. (A) is a side view which shows the normal time of the seismic strengthening hardware based on this invention, (b) is a side view which shows the state which the base of a building is moving upwards from the foundation. (A) is a side view which shows the normal time of the seismic strengthening hardware based on this invention, (b) is a side view which shows the state which the base of a building is moving to the horizontal direction from the foundation. It is a perspective view which shows an example which attached the earthquake-proof reinforcement metal fitting which concerns on this invention, and is a perspective view which further provided the elongate member of the planar view L shape. FIG. 6 is an exploded perspective view of FIG. 5.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

<Embodiment>
1 to 4 show an embodiment of a seismic strengthening hardware according to the present invention.

  The seismic strengthening hardware 1 according to the present invention includes an upper fixing member 5 attached to the wall-side column 3, a lower fixing member 9 attached to the foundation 7 below the upper fixing member 5, an upper fixing member 5 and a lower fixing member. 9, a connecting member 15 including a bolt 11 and a nut 13, and two springs 17 a and 17 b inserted above and below the bolt 11.

  The upper fixing member 5 has an upper and lower plate-like portion 19 attached to the wall surface side of the pillar 3, and an upper portion having a hole 21 a into which a bolt 11 is inserted and extends horizontally below the long plate-like portion 19. The lower fixing member 9 includes a plate-like portion 25 attached to the foundation 7 and a hole 21b that extends in the horizontal direction on the upper portion of the plate-like portion 25 and into which the bolt 11 is inserted. The two springs 17a and 17b are arranged on the upper side of the upper extension part 23 and the lower side of the lower extension part 27, respectively, and are connected to the upper extension part 23 and the lower extension part by the connecting member 15. The hole 21a of the upper extension part 23 and the hole 21b of the lower extension part 27 are larger than the diameter of the bolt 11 so that the upper and lower sides of the bolt 11 can be moved in opposite directions. It is configured.

  The upper fixing member 5 includes two plate-like upper reinforcing portions 29 that connect the long plate-like portion 19 of the upper fixing member 5 and the side portion of the upper extending portion 23 in an elevation view. The fixing member 9 includes two plate-like lower reinforcing portions 31 that connect the side portions of the lower fixing member 9 with the plate-like portion 25 and the lower extending portion 27 as viewed in elevation.

  The hole 21a of the upper extension part 23 and the hole 21b of the lower extension part 27 each have a diameter of 30 to 40 mm. The spring includes an upper spring 17a and a lower spring 17b. As shown in FIG. 2, the upper spring 17a is arranged on the head 33 side of the bolt 11, the tip of the bolt 11 is inserted into the hole 21a of the upper extension 23 and the hole 21b of the lower horizontal part, and the lower spring 17b is inserted. The tip of the bolt 11 is inserted and fixed with a nut 13.

  As shown in FIGS. 1 and 2, the long plate-like portion 19 of the upper fixing member 5 has a plurality of holes 45 in the longitudinal direction, and a plurality of coach holes 35 formed in the base 4 and the pillars 3 respectively. It is fixed via a plurality of coach bolts 37. The plate-like portion 25 of the lower fixing member 9 includes a plurality of holes 46 and is fixed to a plurality of anchor holes 39 formed in the foundation 7 via a plurality of anchor bolts 41, respectively.

  As shown in FIG. 3A, in a normal state, the upper spring 17a is extended so that the space between the head 33 and the upper extension 23 of the bolt 11 is widened, and the lower spring 17b is extended. In such a state, the space between the lower extension 27 and the nut 13 is widened.

  Further, as shown in FIG. 3B, when the building base 4 is moving upward from the foundation 7, the upper spring 17a and the lower spring 17b are contracted, and the upper spring 17a and the lower spring 17b are A force for pulling the base 4 downward acts so as to extend and return to the original state shown in FIG.

  As shown in FIG. 4A, in a normal state, the upper spring 17a is extended so that the space between the head 33 and the upper extension 23 of the bolt 11 is widened, and the lower spring is extended. It arrange | positions so that the space between the lower extension part 27 and the nut 13 may be expanded in the state.

  In addition, as shown in FIG. 4B, in the state where the base 4 of the building is moving upward from the foundation 7 and moving leftward, in particular, the right side of the upper spring 17a is contracted, And the lower spring 17b will be in the contracted state. Then, the upper spring 17a and the lower spring 17b each extend, and a force for pulling the base 4 downward is applied so as to return to the original state shown in FIG. By providing the upper spring 17a and the lower spring 17b, a force is applied to the building on the foundation 7 so as to return to the original state in the horizontal direction in addition to the vertical direction.

<Modification 1>
In the said embodiment, the upper fixing member 5 attached to the pillar 3 by the side of a wall surface was demonstrated. However, it is not restricted to this, You may attach the upper fixing member 5 to a wall surface. When the seismic strengthening hardware 1 is attached to an existing building without cutting the wall, the construction cost can be reduced by about 1/4 to 1/5 compared with the case of cutting the wall.

<Modification 2>
In the said embodiment, the upper fixing member 5 attached to the pillar 3 by the side of a wall surface was demonstrated. However, the present invention is not limited to this, and as shown in FIGS. 5 and 6, the base 4 at the corner of the building and the L-shaped long member 43 attached to the pillar 3 are further provided, and the upper fixing member 5 is the base. 4 and the long member 43 of the pillar 3 may be attached to the surface. The elongated member 43 includes a plurality of holes 44.

  In addition, by extending the long member 43 to the pillar 3 on the second floor, the long member 43 absorbs the force applied to the boundary between the first floor and the second floor, thereby preventing the first floor from collapsing. be able to.

<Modification 3>
In the said embodiment, the upper fixing member 5 provided with the long plate-shaped part 19 attached to the pillar 3 by the side of a wall surface was demonstrated. However, the present invention is not limited to this, and the plate-like portion 25 may be a long portion having an L shape in plan view. By extending this long part to the pillar 3 on the second floor, the long part absorbs the force applied to the boundary between the first floor and the second floor, thereby preventing the first floor from collapsing. Can do.

DESCRIPTION OF SYMBOLS 1 Seismic strengthening hardware 3 Pillar 4 Base 5 Upper fixing member 7 Foundation 9 Lower fixing member 11 Bolt 13 Nut 15 Connecting member 17a Upper spring 17b Lower spring 19 Long plate-like part 21a, 21b Hole 23 Upper extension part 25 Plate-like part 27 Lower extension 29 Upper reinforcement 31 Lower reinforcement 33 Head 35 Coach hole 37 Coach bolt 39 Anchor hole 41 Anchor bolt 43 Long member 44 Hole 45 Hole 46 Hole

Claims (6)

An upper fixing member attached to the wall surface of the column, a lower fixing member attached to the foundation below the upper fixing member, a connecting member composed of a bolt and a nut connecting the upper fixing member and the lower fixing member, and above and below the bolt With two inserted springs,
The upper fixing member is composed of a plate-like part that is long on the top and bottom attached to the wall surface side of the column, and an upper extension part that extends horizontally in the lower part of this plate-like part and has a hole for inserting a bolt
The lower fixing member is composed of a plate-like portion attached to the foundation, and a lower extension portion extending horizontally in the upper portion of the plate-like portion and having a hole for inserting a bolt,
The two springs are respectively arranged on the upper side of the upper extension part and the lower side of the lower extension part, and are fixed so as to be pressed against the upper extension part and the lower extension part by the connecting member,
A seismic strengthening hardware characterized in that the hole of the upper extension part and the hole of the lower extension part are larger than the diameter of the bolt, and the upper and lower parts of the bolt are movable in the left and right directions.   The seismic strengthening hardware according to claim 1, wherein the upper fixing member is fixed to the base and the pillar.   2. A long L-shaped member that is attached to a base and a pillar at the corner of the building in plan view, and the upper fixing member is attached to the surface of the long member of the base and the pillar. Or the earthquake-proof reinforcement metal fitting of Claim 2.   The seismic strengthening hardware according to any one of claims 1 to 3, wherein the plate-like portion of the upper fixing member is a long member having an L shape in plan view.   The seismic strengthening hardware according to any one of claims 1 to 4, wherein the upper fixing member is attached to a wall surface.   An upper reinforcing portion connecting the plate-like portion of the upper fixing member and the upper extending portion; and a lower reinforcing portion connecting the plate-like portion of the lower fixing member and the lower extending portion. The seismic strengthening hardware according to any one of claims 1 to 5.

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