JP2003119884A - Joints and structures - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a connector that draws a column and a horizontal member together and tightens them, and that can be easily and securely attached. To provide a joint structure having a large pull-out resistance and a good workability with a simple configuration. SOLUTION: A foundation K in which a lower end of an anchor bolt 7 is embedded, a base 5 and a lower frame 6b fixed to the foundation K by the anchor bolt 7, and a vertical frame 6 erected on the lower frame 6b.
and a back plate 3 fixed to the vertical frame 6a with its lower end abutting on the lower frame 6b, and a bottom plate 2 projecting from the rear plate 3 with an interval from the lower frame 6b. The joining structure 10 was constituted by the tool 1. Further, the rear plate 2 is fixed to the vertical frame 6a by the lag screw 3b, and the bottom plate 2 is fixed to the upper end of the screw rod 7 'connected to the anchor bolt 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for tightly connecting a horizontal member and a column, and a joint structure using the joint.

[0002]

2. Description of the Related Art Conventionally, in a wooden house, a horizontal material such as a base and a pillar standing on the horizontal material are joined to each other by a tenon provided at the lower end of the pillar and a mortise hole provided in the horizontal material. It is done by fitting. Further, in the frame wall construction method, the vertical frame and the lower frame are joined by nailing.

By the way, when a horizontal force acts on a building due to an earthquake or a typhoon, a large pulling force acts on the joint as described above. Therefore, in recent years, a joint tool called a hole-down hardware is attached to the joint. It is common practice to install the cable to improve the pulling resistance.

As shown in FIG. 7, the conventional connector 20 has
A bottom plate 21 having a bolt insertion hole formed therein, and a rear plate 22 provided upright from an edge portion of the bottom plate 21 and having a bolt insertion hole formed therein.
Further, triangular side plates 23 are attached to the side end portions of the bottom plate 21 and the back plate 22 in order to improve the rigidity at the joint between the bottom plate 21 and the back plate 22. With this joining tool 20, for example, in the frame wall construction method, the lower frame 6b installed on the floor plate laid on the base 5
When tightly connecting the vertical frame 6a and the vertical frame 6a that are erected on the bottom plate 21 of the connector 20, the bottom plate 21 of the connector 20 is moved downward in order to follow the deformation occurring at the joint between the vertical frame 6a and the lower frame 6b in the event of an earthquake. Frame 6b
In the state of being separated from the back plate 22, the bolt 22b is inserted into the bolt insertion hole 22a of the back plate 22 to fix the back plate 22 to the side surface of the vertical frame 6a. Then, when the nut N1 is screwed into the bolt 24 with a washer that is inserted into the bolt insertion hole of the bottom plate 21 and tightened, the washer portion of the bolt with a washer 24 is locked to the lower surface of the base 5, so that the vertical frame 6a is formed. Can be drawn close to the lower frame 6b.

[0005]

However, the conventional joining tool 20 and the joining structure 30 using the joining tool 20 have the following problems. In order to follow the deformation occurring at the joint between the vertical frame 6a and the lower frame 6b in the event of an earthquake, etc.
must be fixed in a state away from b,
It takes time to position and fix the. The pulling force acting on the vertical frame 6a is the bolt with washer 24
Since it is transmitted to the base 5 through the base 5, a bending moment or a shearing force is generated in the base 5, and the base 5 may be damaged if a particularly strong pulling force such as an earthquake or a typhoon acts on the vertical frame 6a. To be done. Since it is necessary to drill the bolt insertion holes of the base 5 on site in order to match the installation position of the bolts 24 with washers penetrating the base 5 with the positions of the bolt insertion holes of the bottom plate 21,
Work efficiency is poor. The anchor bolt 7 is provided at the end of the base 5,
If the washer bolt 24 is installed on the end side of this,
Since the edge distance of the base 5 may be less than the standard value shown in the wooden structure design standard / commentary proposal, the washer bolt 24 is located inside the anchor bolt 7, that is, from the installation position of the corner post. There is no choice but to install it in a remote location. Therefore, in order to use the connector 20, it is uneconomical to arrange a plurality of vertical frames unnecessary for structural strength in order to adjust the dimensions. Connect the connector 20 to the vertical frame 6a with the bolt 22a and the nut N5.
Since the structure is fixed to, the opening 6a 'must be provided between the vertical frames 6a, 6a for the tightening work of the nut N5, which complicates the structure. In addition, the connector 20
Face plate (not shown) unless it is fixed to the vertical frame 6a
Since it cannot be affixed to the wall, it is not possible to manufacture the wall assembly in advance at the factory.

From the above viewpoints, the present invention provides a connector for pulling a column and a horizontal member together and tightly connecting them, and provides a connector which can be easily and surely attached, and the connector. It is an object of the present invention to provide a joint structure having a large pulling strength and a simple structure and good workability using a tool.

[0007]

In order to solve the above-mentioned problems, a connector according to claim 1 is a connector for tightly connecting a column and a horizontal member, and an end portion of the connector is the horizontal member. A back plate fixed to the pillar in a state of being brought into contact with a bridge member, and a bolt insertion hole into which a bolt penetrating the horizontal member is inserted, and the bolt inserted into the bolt insertion hole. And a bottom plate that is locked to the bottom plate, the bottom plate protruding from the back plate in a state of being spaced apart from the horizontal member.

According to this joint tool, since the bottom plate is projected from the rear plate in a state where the bottom plate is spaced from the horizontal member, the lower end of the rear plate is fixed to the column while being in contact with the horizontal member. With this alone, a space is secured between the bottom plate and the horizontal member that can follow the deformation that occurs at the joint between the column and the horizontal member during an earthquake. That is, since the positioning of the joining tool is facilitated, work efficiency is improved.

According to a second aspect of the present invention, there is provided the connector according to the first aspect, wherein the bolt insertion hole is an elongated hole extending in a longitudinal direction of the horizontal member.

According to such a connector, since the bolt insertion hole formed in the bottom plate is a long hole extending in the longitudinal direction of the horizontal member, the distance of the bolt inserted into the bottom plate from the back plate is the installation location of the connector. The connector can be easily installed even if it differs from each other or if there is an installation error in the bolt inserted into the bottom plate.

According to a third aspect of the present invention, there is provided the joint according to the second aspect, wherein the bottom plate is provided with a nut movable along a longitudinal direction of the bolt insertion hole. To do.

According to such a joining tool, since the nut to be screwed with the bolt is attached to the bottom plate in advance and is attached so as to be movable along the elongated hole, the installation work of the joining tool is facilitated.

According to a fourth aspect of the present invention, there is provided the connector according to any one of the first to third aspects, wherein the back plate has a vertical fastener insertion hole through which the fastener is inserted. It is characterized by being formed side by side in two rows.

According to such a connector, since the fastener insertion holes are formed in two rows in the vertical direction on the rear plate, the rear plate has a shape larger than that of the conventional connector having the fastener insertion holes formed in one vertical column. The height of the back plate can be reduced, and the back plate is less likely to come into contact with other members such as penetrators.

According to a fifth aspect of the joint structure, a base in which the lower end of the anchor bolt is embedded, a horizontal member through which the anchor bolt penetrates and which is fixed to the base by the anchor bolt, and the horizontal member. A pillar that is erected on the material, a back plate that is fixed to the pillar with its lower end abutting the horizontal member, and a protrusion that projects from the back plate with a gap from the horizontal member A joining structure including a bottom plate and a lag screw insertion hole formed in two rows in the vertical direction on the back plate, and the bottom plate has a longitudinal direction of the horizontal member. An anchor bolt insertion hole consisting of a long hole extending to is formed, the back plate is fixed to the pillar by a lag screw inserted into the lag screw insertion hole, and the bottom plate is inserted into the anchor bolt insertion hole. Anchor bolt Locked to the upper end, characterized in that.

According to this joint structure, since the lower end of the anchor bolt to which the joint is fixed is buried in the foundation, the pulling force acting on the column is transmitted to the foundation. Therefore, since no bending moment or shearing force is generated in the horizontal members due to the pulling force acting on the columns, even if a large pulling force acts on the columns during an earthquake or typhoon, the horizontal members will not be damaged. .

Further, since the bottom plate of the connector is projected from the rear plate in a state where the bottom plate is spaced apart from the horizontal member, it is fixed to the column while the lower end of the rear plate is in contact with the horizontal member. Only by doing so, an interval is secured between the bottom plate and the horizontal member that can follow the deformation occurring at the joint between the column and the horizontal member during an earthquake or the like. That is, since the positioning of the joining tool is facilitated, work efficiency is improved.

Further, since the anchor bolt insertion hole formed in the bottom plate of the connector is a long hole extending in the longitudinal direction of the horizontal member, the distance from the back plate of the anchor bolt inserted in the bottom plate is determined by the installation of the connector. Different from place to place, or
Even if there is an installation error in the bolt inserted through the bottom plate of the connector, the connector can be easily installed.

Further, since the joining tool utilizes an anchor bolt for fixing the horizontal member to the foundation and is fixed by a lag screw which does not require a nut, the structure of the joining structure is simplified.

According to a sixth aspect of the present invention, there is provided a joint structure comprising a horizontal member and
Lower floor pillars standing on the lower surface of the horizontal member, upper floor pillars standing on the upper surface of the horizontal member, and the upper floor in a state where the lower end is in contact with the horizontal member. A first connector having a back plate fixed to a pillar and a bottom plate protruding from the back plate in a state where the back plate is fixed to the cross member and the upper end is brought into contact with the cross member. A joint structure comprising a rear plate fixed to the pillar on the lower floor in a state, and a second joint provided with a bottom plate protruding from the rear plate in a state of being spaced from the horizontal member. And the bottom plate of the first connector and the second plate
A bolt insertion hole formed of a long hole extending in the longitudinal direction of the horizontal member is formed on the bottom plate of the connector, and the rear plate of the first connector and the rear plate of the second connector are The lag screw insertion holes are formed side by side in two columns, and the back plate of the first connector is fixed to the side surface of the pillar on the upper floor by a lag screw, and the back plate of the second connector is It is fixed to the side surface of the pillar on the lower floor by a lag screw, the through bolt penetrating the horizontal member is inserted through each bolt insertion hole, and the bottom plate of the first connector is on the upper end of the through bolt. In addition to being locked, the bottom plate of the second connector is locked to the lower end of the through bolt.

According to such a joining structure, since the bottom plate of each of the first joining tool and the second joining tool is projected from the back plate in a state where the bottom plate is spaced apart from the horizontal member, the lower end of the back plate. Alternatively, by simply fixing it to the column with the upper end abutting the horizontal member, it is possible to follow the deformation between the bottom plate and the horizontal member that occurs at the joint between the column and the horizontal member during an earthquake. The interval is secured. That is, since the positioning of the joining tool is facilitated, work efficiency is improved.

Since the bolt insertion holes formed in the bottom plate of the first connector and the bottom plate of the second connector are elongated holes extending in the longitudinal direction of the horizontal member, the bolts penetrated through the horizontal member. Even if there is an installation error in, the error can be absorbed and the connector can be installed easily.

Furthermore, since the joining tool is fixed to the side surface of the column by a lag screw which does not require a nut, the construction of the joining structure is simplified.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a joining tool of the present invention and a joining structure using the joining tool will be described in detail below with reference to the accompanying drawings. The same elements will be denoted by the same reference symbols, without redundant description. In addition, although each of the illustrated embodiments is an example of a wooden house constructed by a frame wall construction method, the present invention is not limited to this, and a wooden house constructed by a frame construction method or the like may be used. Can also be applied.

(Embodiment of Joining Tool) As shown in FIGS. 1A and 1B, the joining tool 1 according to the embodiment of the joining tool of the present invention is provided with a back plate 3 and a predetermined number from the lower end of the back plate 3. And a bottom plate 2 which horizontally protrudes from a position separated by a distance of. In this embodiment, substantially triangular side plates 4 are provided on the sides of the bottom plate 2 and the back plate 3 to improve the bending rigidity and the shear rigidity of the joint between the bottom plate 2 and the back plate 3. The lower end of the side plate 4 is inclined from the lower end of the back plate 3 toward the tip of the bottom plate 2.

The bottom plate 2 is formed with (anchor) bolt insertion holes 2a through which anchor bolts 7 (screw rods 7 ') (see FIG. 3) penetrating the base 5 are inserted. The bolt insertion hole 2 a is an elongated hole extending in a direction perpendicular to the back plate 3.

On the back plate 3, fasteners (lag screws) insertion holes 3a, through which fasteners such as lag screws are inserted, are formed in two vertical rows. In addition, although four fastener insertion holes 3a are formed in FIG. 1A, the number of fasteners insertion holes 3a is not limited to this. For example, as shown in FIG. 2A, there are three fastener insertion holes 3a. May be Fastener insertion hole 3a
May be formed in an appropriate number in consideration of the pulling force acting on the column.

The connector 1 is preferably made of a steel plate material, and is formed into the shape shown by bending or welding.

The nut N1 screwed onto the anchor bolt 7 (screw rod 7 ') is moved in advance along the longitudinal direction of the bolt insertion hole 2a of the bottom plate 2 as shown in FIGS. 2 (a) and 2 (b). It may be a nut N2 that is mounted so that it is possible.

(First Embodiment of Joining Structure) As shown in FIG. 3, the joining structure 10 according to the first embodiment of the joining structure of the present invention includes a foundation K in which a lower end of an anchor bolt 7 is embedded. A bottom frame 6b fixed to the foundation K via a floor plate F, which is a horizontal member fixed to the foundation K by the anchor bolt 7 and the connection nut N3. Vertical frame 6 standing on the lower frame 6b
a and the connector 1. Further, the connector 1 is fixed to the vertical frame 6a by the lag screw 3b. In this embodiment, the anchor bolt 7 is connected to the screw rod 7 ′ via the connection nut N3. Also, foundation K and foundation 5
A base spacer S is provided between and to secure a ventilation gap.

The anchor bolt 7 has a lower end bent up in a U shape and an upper end formed with a male screw. The anchor bolt 7 is embedded in a predetermined position in advance when constructing the foundation. In addition, in this embodiment, the upper end of the anchor bolt 7 has a length that does not protrude from the upper surface of the base 5, and the base 5 is fixed to the foundation K by the connection nut N3 screwed to the upper end of the anchor bolt 7 and screwed to the connection nut N3. The lower end of the rod 7 ′ is screwed and connected to the anchor bolt 7. With such a configuration, the anchor bolt 7 does not interfere with the installation of the lower frame 6b, so that the working efficiency is improved. Of course, the anchor bolt 7 may have a length such that the upper end thereof can be inserted into the bolt insertion hole 2a of the bottom plate 2.

The lag screw 3b is, in this embodiment,
As shown in FIGS. 6A and 6B, a tool having a drill blade formed at its tip is used. Since the lag screw 3b thus configured can be screwed into the vertical frame 6a without a front hole, the installation work of the connector 1 is facilitated. Of course, you may use a conventional lag screw,
It may be fixed with bolts and nuts.

Hereinafter, a method for constructing such a bonded structure 10 will be described. First, with the lower end of the back plate 3 of the connector 1 in contact with the upper surface of the lower frame 6b, the lag screw 3b
Is screwed into the vertical frame 6a from the fastener insertion hole 3a of the rear plate 3 to fix the rear plate 3 to the vertical frame 6a. The bottom plate 2 is the back plate 3
Since it horizontally protrudes from a position apart from the lower end of the bottom plate by a predetermined distance, it is only necessary to bring the lower end of the back plate 3 into contact with the upper surface of the lower frame 6b to prevent the occurrence of an earthquake between the bottom plate 2 and the lower frame 6b. An interval sufficient to follow the deformation occurring at the joint between the vertical frame 6a and the lower frame 6b is secured.

Next, the screw rod 7'is inserted into the bolt insertion hole 2a of the bottom plate 2, and the lower end of the screw rod 7'is screwed into the connection nut N3 to be connected to the anchor bolt 7. Then, the upper end of the screw rod 7'is tightened with the nut N1 to lock the bottom plate 2. Since the lower end of the anchor bolt 7 to which the screw rod 7'is connected is embedded in the foundation K, the vertical frame 6a is strongly attracted to the lower frame 6b and tightly connected. Therefore, even if a pulling force acts on the vertical frame 6a due to an earthquake or the like, since the bottom plate 2 is locked by the screw rod 7 ', the vertical frame 6a can be prevented from being pulled out from the lower frame 6b.

The screw rod 7'may be connected to the anchor bolt 7 before fixing the connector 1 to the vertical frame 6a. In this case, the back plate 3 may be fixed to the vertical frame 6a with the screw rod 7'inserted in the bolt insertion hole 2a of the bottom plate 2.

As described above, according to the connector 1, the bottom plate 6b and the lower frame 6b are simply fixed to the vertical frame 6a while the lower end of the back plate 3 is in contact with the lower frame 6b. An interval is secured between the bottom plate 2 and the lower frame 6b so as to be able to follow the deformation occurring in the joint portion with the 6b. That is, since the positioning of the connector 1 is facilitated, work efficiency is improved.

Further, since the bolt insertion hole 2a is a long hole, even if the distance from the back plate 3 of the anchor bolt 7 differs depending on the installation location of the connector 1, or there is an installation error in the anchor bolt 7. Also, the connector 1 can be easily installed.

Further, the back plate 3 has a fastener insertion hole 3a.
Are formed side by side in two vertical rows, the back plate 3 can be made shorter than a conventional joint in which the fastener insertion holes are formed in one vertical row, and it can be used for other members such as pierces. Back plate 3
It also reduces contact with. In addition, the lag screw 3b, like the connector 1 installed on the right side in FIG.
Can be driven while avoiding the joint of the vertical frame 6a.

Further, according to the joint structure 10, since the lower end of the anchor bolt 7 is embedded in the foundation K, the vertical frame 6
The pulling force acting on a is transmitted to the foundation K. That is,
Since the bending moment and the shearing force due to the pulling force acting on the vertical frame 6a do not occur on the base 5 and the lower frame 6b, even if a large pulling force acts on the column during an earthquake or a typhoon, the base 5 and the lower frame 6 will not work.
b is not damaged.

Further, in the joining structure 10, since the joining tool 1 is fixed to the vertical frame 6a by the lag screw 3b which does not require a nut, the vertical frames 6a, 6a which have been conventionally required for nut tightening work. The opening 6a '(see FIG. 7) between them is not necessary. Furthermore, since the connector 1 is locked to the anchor bolt 7, the vertical frame 6a for adjusting the distance between the connector 1 and the anchor bolt 7 may be minimum. Therefore, the structure of the joining structure 10 is simplified. For example, the joint structure 10 shown in FIG. 3 has four vertical frames 6a less than the conventional joint structure 30 shown in FIG. Further, since the lag screw 3b does not project to the side opposite to the side surface of the vertical frame 6a on which the joining tool 1 is installed, a window frame or the like can be easily installed next to the vertical frame 6a.

(Second Embodiment of Joining Structure) As shown in FIG. 5, a joining structure 11 according to a second embodiment of the joining structure of the present invention has a horizontal member 8 and a lower vertical frame 6a. And the vertical frame 6d of the upper floor which is erected with the axis line aligned with the vertical frame 6a of the lower floor.
And a through bolt 9 penetrating the horizontal member and a vertical frame 6 on the lower floor.
a and the joining tool 1, which is fixed to each of the vertical frames 6d on the upper floor,
It consists of 1 '. Further, the horizontal member 8 in this case is composed of the upper frame 6c of the lower floor, the end joist 8a, and the lower frame 6e of the upper floor, and the upper floor 6c is provided between the end joist 8a and the lower frame 6e of the upper floor. A floor board F is provided. The connector 1'fixed to the vertical frame 6a on the lower floor is the connector 1 fixed to the vertical frame 6d on the upper floor upside down.

A method of constructing such a joint structure 11 will be described below. First, with the lower end of the back plate 3 of the connector 1 in contact with the lower frame 6e of the upper floor, it is fixed to the side surface of the vertical frame 6d of the upper floor with the lag screw 3b. At this time, since the bottom plate 2 horizontally projects from a position separated from the lower end of the back plate 3 by a predetermined distance, the bottom plate 2 can be simply brought into contact with the upper surface of the lower frame 6e of the upper floor. It is possible to secure an interval between the second frame 2 and the lower frame 6e on the upper floor so as to be able to follow the deformation occurring at the joint between the vertical frame 6d on the upper floor and the lower frame 6e on the upper floor during an earthquake. Similarly, with the upper end of the connector 1'abutting against the upper frame 6c of the lower floor, it is fixed to the side surface of the vertical frame 6a of the lower floor with the lag screw 3b.

Next, the through bolts 9 may be inserted through the bottom plate 2 of the joining tool 1 and the bottom plate 2 of the joining tool 1 ', and nuts N1 may be screwed at both ends thereof to engage with the bottom plates 2,2. At this time, since the bolt insertion hole 2a provided in the bottom plate 2 is a long hole, even if there is an installation error in the through bolt 9, it can be easily absorbed and installed. Then, when the nut N1 is tightened, a tensile force is generated in the through bolt 9 provided between the connectors 1 and 1 ', and the vertical frame 6a on the lower floor and the vertical frame 6d on the upper floor are attracted to the horizontal members. Are tied together.

As described above, also in the joint structure 11,
Since the fittings 1, 1 ′ can be easily positioned and the installation error of the through bolt 9 can be easily dealt with, the installation work of the fittings 1, 1 ′ is facilitated and the work efficiency is improved.
Further, the joining tools 1 and 1'are fixed to the side surfaces of the vertical frame 6a on the lower floor or the vertical frame 6d on the upper floor by the lag screw 3b,
Since the lag screw 3b does not project on the opposite side surface, a window frame or the like can be installed adjacent to the vertical frames 6a and 6d.

[0045]

According to the connector of the first aspect of the present invention, it is possible to fix the lower end of the back plate to the column with the lower end of the plate in contact with the column, and to fix the plate between the bottom plate and the frame when an earthquake occurs. An interval sufficient to follow the deformation occurring at the joint between the column and the horizontal member is secured. That is, since the positioning of the joining tool is facilitated, work efficiency is improved.

According to the connector of the second aspect, since the bolt insertion hole formed in the bottom plate is a long hole extending in the longitudinal direction of the horizontal member, the distance of the bolt inserted into the bottom plate from the back plate is joined. Even if it differs depending on the installation location of the tool or there is an installation error in the bolt inserted into the bottom plate, the connector can be easily installed.

According to the third aspect of the present invention, since the nut to be screwed with the bolt is preliminarily attached to the bottom plate and is movable along the longitudinal direction of the elongated hole, the work of attaching the joint is facilitated. Therefore, work efficiency is improved.

According to the connector of claim 4, since the fastener insertion holes are formed in two rows in the vertical direction on the back plate, the fastener insertion holes are formed in a single vertical line. Also, the height of the back plate can be reduced, and the back plate is less likely to come into contact with other members such as piers.

According to the joint structure of claim 5, since the pulling force acting on the column is transmitted to the foundation, a bending moment and a shearing force are not generated in the horizontal member due to the pulling force acting on the column. Absent. Therefore, even if a large pulling force is applied to the column during an earthquake or typhoon, the horizontal member will not be damaged. In addition, positioning of the connector is easy, and since the anchor bolt insertion hole provided in the bottom plate is a long hole, it can be easily installed even if there is an installation error in the anchor bolt, thus improving work efficiency.

According to the joint structure of claim 6, the positioning of the joint is easy, and since the bolt insertion hole provided in the bottom plate is a long hole, it can be easily installed even if there is an error in the installation of the bolt. Is improved.

[Brief description of drawings]

1A is a perspective view showing an embodiment of a connector according to the present invention, and FIG. 1B is a side sectional view of the connector shown in FIG.

2A is a perspective view showing another embodiment of the connector according to the present invention, and FIG. 2B is a side sectional view of the connector shown in FIG.

FIG. 3 is a perspective view showing a first embodiment of a joining structure according to the present invention.

FIG. 4 is a side sectional view of the joining structure shown in FIG.

FIG. 5 is a perspective view showing a second embodiment of the joining structure according to the present invention.

FIG. 6A is a perspective view showing a lag screw used in the joining structure according to the present invention, and FIG. 6B is a side view of the lag screw shown in FIG.

FIG. 7 is a perspective view showing a conventional joining tool and joining structure.

[Explanation of symbols]

1, 1a, 1'joint 10, 11 Joint structure 2 Bottom plate 2a (anchor) bolt insertion hole 3 back plate 3a Fixing tool (lag screw) insertion hole 3b lag screw 4 side plates 5 foundation 6a Vertical frame (pillar) 6b lower frame 7 Anchor bolt 7'screw rod 8 horizontal materials 9 through bolts 20 Conventional connector 30 Conventional joining structure K basics N1 to N5 nuts

Claims (6)

[Claims] 1. A connecting tool for tightly connecting a column and a horizontal member, the back plate being fixed to the column in a state where an end portion is in contact with the horizontal member, and a penetrating member for the horizontal member. A bottom plate that has a bolt insertion hole through which the provided bolt is inserted and that is locked by the bolt inserted into the bolt insertion hole; and the bottom plate is spaced from the horizontal member. And a projecting member extending from the back plate. 2. The connector according to claim 1, wherein the bolt insertion hole is an elongated hole extending in the longitudinal direction of the horizontal member. 3. The connector according to claim 2, wherein a nut movable along the longitudinal direction of the bolt insertion hole is attached to the bottom plate. 4. The fastener insertion holes, through which the fasteners are inserted, are formed in the back plate side by side in two vertical rows, as claimed in any one of claims 1 to 3. Splicer. 5. A foundation in which the lower end of an anchor bolt is embedded, a horizontal member through which the anchor bolt penetrates and which is fixed to the foundation by the anchor bolt, and an upright position on the horizontal member. Column, a rear plate fixed to the column with its lower end abutting the horizontal member, and a bottom plate protruding from the rear plate with a gap from the horizontal member. A joining structure comprising a joining tool, wherein the bottom plate is formed with an anchor bolt insertion hole formed of an elongated hole extending in the longitudinal direction of the horizontal member, and the back plate is provided with a lag screw insertion hole vertically. Formed in two rows, the back plate is fixed to the pillar by a lag screw inserted into the lag screw insertion hole, and the bottom plate is engaged with an upper end of the anchor bolt inserted into the anchor bolt insertion hole. Be stopped , A joining structure characterized by the above. 6. A horizontal member, a lower floor pillar standing on a lower surface of the horizontal member, an upper floor pillar standing on an upper surface of the horizontal member, and a lower end of the horizontal member. A first connector provided with a back plate fixed to the pillar on the upper floor in a state of being in contact with the back plate, and a bottom plate protruding from the back plate in a state of being spaced from the horizontal member, A second plate including a rear plate fixed to the pillar on the lower floor in a state where the upper end is in contact with the horizontal member, and a bottom plate protruding from the rear plate in a state of being spaced apart from the horizontal member And a bottom plate of the first connector and a bottom plate of the second connector, each of which has a bolt insertion hole formed of an elongated hole extending in the longitudinal direction of the horizontal member. Lag screw insertion holes are formed side by side in two rows on the back plate of the first connector and the back plate of the second connector. While the back plate of the first connector is fixed to the side surface of the pillar of the upper floor by a lag screw, the back plate of the second connector is fixed to the side surface of the pillar of the lower floor by a lag screw, A through bolt penetrating the horizontal member is inserted into each of the bolt insertion holes, a bottom plate of the first connector is locked to an upper end of the through bolt, and a bottom plate of the second connector is inserted. Is joined to the lower end of the through bolt.