JP3026712U - Fixtures for buildings - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a fixture having excellent earthquake resistance by effectively absorbing a vibration applied to the fixture. SOLUTION: A fixing metal fitting 10 having an inverted T-shaped cross section having a bottom plate 11 fixed to a foundation concrete 24 and a pillar fixing plate 12 fixed to a pillar 32 is constituted. Frame bodies 13 and 13 for supporting columns 32 are provided on both sides of the column fixing plate 12. A positioning piece 16 is projectingly provided on the lower end edges of the frame bodies 13 and 13, and a cutout portion 17 into which the positioning piece 16 is fitted is provided on the bottom plate 11. And foundation concrete 24
Assembling the frame bodies 13 and 13 to the bottom plate 11 fixed to the column fixing plate 12
Insert the slit 33 formed on the back surface of the pillar 32 into the frame body 13,
The column 32 is supported by 13. After that, the pillar fixing plate 12 and the pillar 32 are fixed, and the vibration applied to the pillar 32 at the time of an earthquake is absorbed by the frame bodies 13 and 13 to prevent the fixing metal fitting 10 from being damaged.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a metal fixture for a wooden structure, for example, a structure that joins a basic concrete and a pillar.

[0002]

[Prior art]

 In the frame structure of conventional wooden buildings, various metal fittings are used to join the wooden members to each other.For example, it is actually used as a fixing metal fitting to fix a pillar standing on a horizontal material such as a base or girder. A joint fitting proposed in Japanese Patent Laid-Open No. 62-7504 is known. As shown in FIG. 5, the metal fitting main body 1 of this joining metal fitting is formed in a tubular shape, and a base 2 and a pillar 3 are formed with a fitting hole 4 into which the metal fitting body 1 is fitted. Then, the metal fitting body 1 is inserted into the base 2 and the fitting holes 4 on both sides of the pillar 3, and the through hole 6 of the bolt 5 formed on the side portion of the metal fitting body 1 and the mounting hole 7 formed on the base 2 and the pillar 3 are inserted. The bolts 5 are inserted in alignment with each other, and the base 2 and the pillars 3 are fixed by the nuts 8.

However, in the conventional fixing metal fitting, the metal fitting body 1 is inserted into the fitting holes 4 of both the base 2 and the pillar 3 to fix the base 2 and the pillar 3, so that a strong lateral direction during an earthquake can be secured. When a vibration is applied, strong shear stress is applied to the tubular metal fitting body 1 that connects the base 2 and the pillar 3 to each other, and the metal fitting body 1 is easily bent, and the metal fitting body 1 is easily broken, and the vertical vibration is caused. On the other hand, there is a problem that the metal fitting body 1 is easily pulled out from the base 2 and the pillar 3 and the building may collapse, resulting in poor seismic resistance.

The present invention is intended to solve such a problem, and an object thereof is to provide a fixing metal fitting having excellent earthquake resistance.

[0005]

[Means for Solving the Problems]

 The invention of claim 1 is a fixture for a building for fixing a foundation concrete and a pillar standing on the foundation concrete, the fixture being fixed to the foundation concrete directly or via the girder. Has a bottom plate and a column fixing plate which is erected in the center of the bottom plate and is inserted into a slit formed on the back surface of the column, and is formed in an inverted T-shape in cross section. Since a frame for supporting the pillar is provided, a plurality of through holes for passing the mounting bolts are provided in the pillar fixing plate, and a through hole for allowing the fixture fixed to the basic concrete to be passed is provided in the bottom plate. In the event of an earthquake, the vibration can be absorbed by the buffering action of the frame that is interposed between the bottom plate fixed to the concrete foundation and the columns.

According to a second aspect of the present invention, in the fixture for a building according to the first aspect of the present invention, the frame has a mounting surface parallel to the bottom plate, and the frame is hung vertically from both side edges of the mounting. Since it has a side plate that is fixed to the bottom plate and has a U-shaped cross section, the side plate can effectively absorb vertical vibrations and enhance the earthquake resistance.

According to a third aspect of the present invention, in the fixture for a building according to the second aspect of the present invention, a positioning piece is provided at a lower end of a side plate of the frame body, and a notch that engages with the positioning piece is provided on the bottom plate. Part is formed, and the positioning piece is engaged with the cutout portion so that the frame body of the fixing metal fitting is detachably provided. Therefore, the positioning piece of the frame body and the cutout portion of the bottom plate are engaged with each other to form the frame on the bottom plate. The body can be easily assembled in the positioned state.

According to a fourth aspect of the present invention, in the building fixture of the third aspect, the frame is detachably attached to the bottom plate with a slight gap between the frame and the column fixing plate. Therefore, when fixing the bottom plate, you can easily tighten the mounting bolts by removing the frame from the fixing bracket. Also, when the frame is assembled, the frame is assembled with a slight gap between it and the column fixing plate, so when vibration is applied to the fixing bracket, interference between the frame and the column fixing plate can be suppressed. it can.

According to a fifth aspect of the present invention, in the fixture for a building according to the fourth aspect of the present invention, the fixture is an anchor bolt embedded in the foundation concrete. Therefore, the anchor bolt embedded in the foundation concrete. The fixing bracket can be firmly fixed with, and the pull-out strength of the fixing bracket can be increased.

[0010]

[Embodiment of device]

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 4 show an embodiment of the present invention, in which a fixing metal fitting 10 has a column-shaped bottom plate 11 and a column fixing plate 12 which is erected in a central portion thereof to have an inverted T-shaped cross section. Is forming. The column fixing plate 12 is erected in a direction orthogonal to the longitudinal direction of the column fixing plate 12, and the frame bodies 13 and 13 for absorbing the vibration are attached and detached on the bottom plate 11 so as to sandwich the column fixing plate 12. It is provided freely. The frame bodies 13 and 13 are formed in a U-shaped cross section in which a pair of left and right side plates 15 and 15 are vertically provided from both side edges of the mounting surface 14 parallel to the bottom plate 11. Further, a convex positioning piece 16 is provided on the lower end edges of the side plates 15 and 15, and a notch 17 that engages with the positioning piece 16 is formed on the outer edge of the bottom plate 11. Then, by inserting the positioning piece 16 into the notch 17 of the bottom plate 11, the frame bodies 13 and 13 are assembled to the bottom plate 11 in a positioned state. The heights of the frames 13 and 13 are set so that the mounting surface 14 thereof is slightly lower than approximately the middle of the column fixing plate 12 and protrudes from the mounting surface 14 of the frames 13 and 13. The column fixing plate 12 is provided with a pair of left and right through holes 21 through which the two mounting bolts 20 pass. An anchor bolt 23, which is a fixing metal fitting for fixing the girder 22 and the fixing metal fitting 10, is embedded in the basic concrete 24, and an insertion hole 25 corresponding to the anchor bolt 23 is formed in the girder 22 and a bottom plate 11 of the fixing metal fitting 10 is provided. Each through hole 26 is provided. In this case, the through hole 26 formed in the bottom plate 11 is formed to have a diameter larger than that of the anchor bolt 23. In addition, 30 is a nut screwed to each of the bolts 20 and 23, 31 is a washer interposed between the nut 30 and the bottom plate 11, 32 is a column, and 33 is a column 32 into which the column fixing plate 12 is inserted. The slits 34 formed on the back surface are insertion holes for the mounting bolts 20 formed in the pillar 32.

The construction method of the present invention configured as above will be described. First, with the frames 13 and 13 removed from the fixing bracket 10, the through holes 26 formed in the bottom plate 11 of the fixing bracket 10 are passed through the anchor bolts 23 protruding from the insertion holes 25 of the girder 22, and the washer 31 is inserted. Tighten the nut 30 on the anchor bolt 23. After fixing the fixing bracket 10 to the foundation concrete 24 through the girder 22 in this manner, the frame bodies 13 and 13 are assembled to the bottom plate 11 of the fixing bracket 10. To assemble the frame bodies 13 and 13, the positioning pieces 16 formed on the side plates 15 and 15 of the frame bodies 13 and 13 are inserted into the notches 17 formed on the bottom plate 11, and the positioning pieces 16 and the notches 17 are assembled. By the engagement, the frame bodies 13, 13 are assembled on the bottom plate 11 in a positioned state. The frame bodies 13, 13 assembled in the fixing bracket 10 in this manner are located on both sides of the column fixing plate 12, and a slight gap S is formed between them. Then, the pillar 32 is lowered from above the fixing metal fitting 10 fixed to the girder 22 and the slit 33 formed on the back surface of the pillar 32 is inserted into the pillar fixing plate 12 integrally formed with the fixing metal fitting 10. Climb on the frame bodies 13, 13 assembled to the fixing metal fitting 10. After passing the mounting bolt 20 through the insertion hole 34 formed in the pillar 32 and the through hole 21 formed in the pillar fixing plate 12, the pillar 32 and the fixing metal fitting 10 are fixed with a nut 30 to fix the girder 22, the fixing metal fitting 10 and The columns 32 are integrally connected. The frames 13 and 13 assembled to the fixing bracket 10 are sandwiched and fixed by the load of the column 32 between the column 32 and the bottom plate 11.

As described above, according to the present invention, in the frame bodies 13, 13 supporting the columns 32, the positioning pieces 16 formed on the side plates 15, 15 of the frame bodies 13, 13 are formed on the bottom plate 11 of the fixing member 10. Since it is only inserted into the notch 17 and positioned on the bottom plate 11 with a slight clearance S from the column fixing plate 12 of the fixing metal fitting 10, if the base plate 11 and the column 32 are shaken in the lateral direction such as an earthquake. Due to the clearance S between the frame body 13 and the column fixing plate 12, the frame body 13 swings to the left and right without interfering with the fixing metal fitting 10 fixed to the girder 22, and also in the vertical direction. The side plates 15 and 15 of the frame body 13 can absorb the shaking, and the damaging action of the frame bodies 13 and 13 can prevent the fixing metal fitting 10 from being damaged. Moreover, the bottom plate 11 of the fixing bracket 10 is firmly fixed by the anchor bolts 23 embedded in the foundation concrete 24, while the column fixing plate 12 and the column 32 integrated with the bottom plate 11 are fixed by the two mounting bolts 20. Therefore, the fixed metal fitting 10 can firmly integrate the basic concrete 24 and the pillar 32, and the pull-out strength of the fixing metal fitting 11 can be increased. Therefore, the shock-absorbing action of the frame body 13 improves the seismic resistance, and the fixing bracket 10 and the pillar 32 can be firmly integrated in the event of an earthquake, so that the collapse of the house in the event of an earthquake can be prevented. When fixing the fixing bracket 10 to the girder 22 during construction, the anchor bolts 23 for fixing the fixing bracket 10 are exposed by removing the frames 13 and 13 from the fixing bracket 10, so that the anchor bolt 23 can be secured to the nut 30. It is possible to easily perform the work of tightening. Also, when the frame bodies 13 and 13 are assembled, the positioning pieces 16 formed on the side plates 15 and 15 of the frame bodies 13 and 13 are formed on the bottom plate 11 of the fixing bracket 10. The frame bodies 13 and 13 and the fixing metal fitting 10 can be easily positioned simply by inserting the notch 17, and the workability is excellent.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. The number of through-holes provided in the column fixing plate and the means for attaching the fixing brackets to the girders may be selected as appropriate.Also, if the girders are omitted and the fixing brackets are directly fixed to the foundation concrete. Good.

[0014]

[Effect of device]

 According to the invention of claim 1, there is provided a fixture for a building for fixing a foundation concrete and a column standing on the foundation concrete, the fixture being directly or through a girder on the foundation concrete. It has a bottom plate to be fixed and a pillar fixing plate standing upright in the center of the bottom plate and inserted into a slit formed on the back surface of the pillar, and is formed in an inverted T-shape in cross section, and the pillars are provided on both sides of the pillar fixing plate. Since a frame body supporting the pillars is provided, a plurality of through holes for mounting bolts are provided in the column fixing plate, and a through hole for a fixture for fixing to the foundation concrete is provided in the bottom plate. The cushioning effect of the frame that is interposed between the bottom plate fixed to the foundation concrete and the pillar can prevent the fixing bracket from being damaged, maintain the connection between the girder and the pillar, and prevent the collapse of the house.

According to a second aspect of the invention, there is provided a building fixture according to the first aspect of the invention, wherein the frame body has a mounting surface parallel to the bottom plate, and side plates vertically extending from both side edges of the mounting surface. Since it is formed to have a U-shaped cross section, the side plate can effectively absorb the vertical vibrations, and it is possible to provide a fixing bracket having excellent earthquake resistance.

According to a third aspect of the present invention, there is provided a building fixture according to the second aspect, wherein a positioning piece is provided at a lower end of a side plate of the frame body, and the bottom plate is engaged with the positioning piece. Since the notch is formed and the positioning piece is engaged with the notch so that the frame of the fixing fitting is detachably provided, the work of positioning the frame is easy.

According to a fourth aspect of the present invention, in the building fixture of the third aspect of the invention, the frame is detachably attached to the bottom plate with a slight gap between the frame and the column fixing plate. Therefore, when fixing the bottom plate to the girder, if you remove the frame from the fixing bracket, the mounting holes formed in the bottom plate will be exposed, and you can easily tighten the mounting bolts, and the construction work is simple. Further, when the frame body is assembled, the frame body is assembled with a slight gap between the frame body and the column fixing plate, so that the interference between the frame body and the column fixing plate can be suppressed.

According to a fifth aspect of the present invention, in the fixture for a building according to the fourth aspect of the present invention, the fixture is an anchor bolt embedded in the basic concrete. Therefore, the anchor bolt embedded in the basic concrete. The fixing bracket can be firmly fixed with, and the pull-out strength of the fixing bracket can be increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a mounting state of a fixing bracket showing an embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2 showing an embodiment of the present invention.

FIG. 4 is a perspective view of a fixing member according to an embodiment of the present invention.

FIG. 5 is an exploded perspective view showing a conventional example.

[Explanation of symbols]

 10 Fixing bracket 11 Bottom plate 12 Column fixing plate 13 Frame 14 Mounting surface 15 Side plate 16 Positioning piece 17 Notch 20 Mounting bolt 21, 26 Through hole 22 Girder 23 Anchor bolt (fixture) 24 Foundation concrete 32 Pillar 33 Slit

Claims (5)

[Scope of utility model registration request] 1. A fixture for a building, which fixes a foundation concrete and a pillar standing on the foundation concrete, the fixture including a bottom plate fixed to the foundation concrete directly or through a girder. A frame body having an inverted T-shape in cross section having a pillar fixing plate that is erected in the center of the bottom plate and is inserted into a slit formed on the back surface of the pillar, and supports the pillar on both sides of the pillar fixing plate. And a plurality of through holes through which mounting bolts are provided in the pillar fixing plate, and through holes through which a fixture for fixing to the basic concrete is provided through the bottom plate. 2. The frame body is formed to have a U-shaped cross section, having a mounting surface parallel to the bottom plate and side plates vertically extending from both side edges of the mounting surface. Fixing bracket for building described in 1. 3. A positioning piece is projectingly provided on a lower end of the side plate,
The fixture for a building according to claim 2, wherein the bottom plate is provided with a cutout portion that engages with the positioning piece. 4. The fixture for a building according to claim 3, wherein the frame is detachably attached to the bottom plate with a slight gap between the frame and the column fixing plate. 5. The fixture for a building according to claim 4, wherein the fixture is an anchor bolt embedded in the foundation concrete.