JP7144273B2 - Connection structure of construction members - Google Patents

Description

The present invention relates to a connecting structure for construction members.

Conventionally, as one of the techniques for connecting a pair of construction members, a pair of construction members are arranged by arranging the end surfaces of a pair of steel construction members so as to face each other and welding a part of these end surfaces. is proposed (see, for example, Patent Document 1).

JP-A-08-090223

However, in the above-described conventional technique, a pair of construction members are connected by welding a part of the end faces of the pair of steel construction members. In addition to the time and effort of , preparation work (for example, welding machine loading work, cabtyre cable wiring work, work for fire or electric shock protection, etc.) is required, and sparks generated during welding can cause fires. There was a danger of electric shock, and there was room for improvement in terms of workability and safety.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a connection structure for construction members that facilitates ensuring safety at a work site while enhancing workability.

In order to solve the above-described problems and achieve the object, the connection structure for construction members according to claim 1 is a pair of construction members, and is provided so that the end surfaces of the pair of construction members are butted against each other. A connecting structure for connecting a pair of construction members, wherein abutment means provided on one of the pair of construction members so as to abut on the other of the pair of construction members. abutment means projecting toward the other of the pair of construction members; and clamping means for overlapping and clamping the abutment means and the other of the pair of construction members; The end face of one of the pair of construction members, which is located on the other side of the pair of construction members, is brought into contact with the end face of one of the pair of construction members from the inner side to the outer side of the pair of construction members. It is formed so as to incline toward the means side, and the other end face of the pair of construction members, the end face located on either one side of the pair of construction members, is inclined toward the means side. or the other is formed on a flat surface along the thickness direction, and the clamping means is either a first clamping piece provided at a position capable of coming into contact with the contact means, or the pair of construction members. A second holding piece provided at a position capable of coming into contact with a side surface of the other side surface opposite to the side surface that comes into contact with the contacting means, and the first holding piece and the second holding piece. a clamping portion for clamping the first clamping piece and the second clamping piece with a predetermined pressure in a state where the means and the other of the pair of construction members are clamped, wherein the first clamping The first clamping piece and the second clamping piece are rotatably attached to the tightening portion, and the second clamping piece is formed into a plate-like body having an L-shaped side surface. When the first clamping piece and the second clamping piece are rotated 180 degrees from a position where the contact means and the other of the pair of construction members can be clamped by the piece and the second clamping piece to a position where they can not be clamped. (2) the L-shaped vertical rod portion of the second clamping piece and the other end surface of the pair of construction members parallel to the YZ plane can abut against each other; When the first clamping piece and the second clamping piece are rotated 180 degrees to a possible position, the L-shaped horizontal bar portion of the second clamping piece can contact the other of the pair of construction members. and

The connection structure for construction members according to claim 2 is the connection structure for construction members according to claim 1, wherein the tightening portion comprises a long bolt body and one longitudinal end of the bolt body. and a nut that can be inserted into the bolt body.

According to claim 3, there is provided a connection structure for construction members according to claim 1 or 2 , wherein the abutment means is connectable to a slinging tool.

According to the connection structure for construction members according to claim 1, the abutment means provided on either one of the pair of construction members, the pair of construction members being in contact with the other of the pair of construction members. Since the abutting means projecting toward the other of the members and the holding means for overlapping and holding the abutting means and the other one of the pair of construction members are provided, A pair of construction members can be connected to each other by overlapping and holding the contact means and the other of the pair of construction members. Therefore, as compared with the conventional technology (technique for connecting a pair of construction members by welding), it is possible to reduce the labor required for connecting a pair of construction members and improve workability. In addition, since no sparks are generated when connecting a pair of construction members, it is possible to avoid the occurrence of fires and electric shocks due to the sparks, etc. easier.
Further, the clamping means is configured to clamp the first clamping piece and the second clamping piece with a predetermined pressure in a state in which the contacting means and the other of the pair of construction members are clamped by the first clamping piece and the second clamping piece. Since the tightening portion for tightening is provided, in a state in which the abutment means and the other of the pair of construction members are sandwiched between the first clamping piece and the second clamping piece, the tightening portion applies a predetermined pressure to the second construction member. The first clamping piece and the second clamping piece can be tightened, making it possible to connect the pair of construction members relatively firmly.
Further, since the first clamping piece and the second clamping piece are rotatably attached to the tightening portion, the first clamping piece and the second clamping piece are rotated relative to the tightening portion according to the situation. Therefore, it is possible to prevent the installation of at least one of the pair of construction members from being hindered by the first clamping piece and the second clamping piece.

According to the connection structure for construction members according to claim 2, the bolt has an elongated bolt body and a head portion provided at one end in the longitudinal direction of the bolt body, and the bolt and a nut that can be inserted into the main body, the tightening portion can be easily configured using ready-made members, and the manufacturability of the tightening portion can be improved.

According to the structure for connecting construction members according to claim 3, since the abutting means is configured to be connectable with the slinging tool, the abutting means and the slinging tool can be connected, and the pair of construction members can be connected. Since there is no need to separately provide a mounting member for mounting the slinging tool to either one, it becomes easier to maintain the manufacturability of either one of the pair of construction members.

FIG. 4 is a perspective view showing a state in which the first construction member and the second construction member are connected according to the embodiment of the present invention; It is an enlarged view of the A area|region of FIG. 1, (a) is a front view, (b) is a top view. It is a figure which shows a 1st clamping piece, (a) is a front view, (b) is a top view. It is a figure which shows the 2nd clamping piece, (a) is a front view, (b) is a top view. It is a figure which shows the attachment process of a connection method, (a) is a figure which shows the area|region corresponding to Fig.2 (a), (b) is a figure which shows the area|region corresponding to FIG.2(b). It is a figure which shows the mounting process of a connection method, (a) is a figure which shows the area|region corresponding to Fig.2 (a), (b) is a figure which shows the area|region corresponding to FIG.2(b).

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Exemplary embodiments of a connection structure for construction members according to the present invention will be described in detail below with reference to the accompanying drawings. First, [I] the basic concept of the embodiment will be explained, then [II] the specific contents of the embodiment will be explained, and finally [III] modifications of the embodiment will be explained. However, the present invention is not limited by the embodiment.

[I] Basic concept of the embodiment First, the basic concept of the embodiment will be described. An embodiment is generally a pair of construction members, and a connection structure for connecting a pair of construction members provided so that the end surfaces of the pair of construction members are butted against each other with a space therebetween. It is about. Here, the term "construction member" means a member that constitutes a building, and is a concept that includes, for example, floor materials, beam materials, pillar materials, wall materials, and the like. Further, although the specific structure and type of "construction" are arbitrary, the concept includes, for example, architectural structures such as office buildings and commercial facilities, civil engineering structures such as bridges, and the like.

[II] Specific contents of the embodiment Next, specific contents of the embodiment will be described.

(Constitution)
First, the configuration of the connection structure and the configurations of the first construction member 10 and the second construction members 20a, 20b to which this connection structure is applied will be described.

(Composition - 1st construction member)
First, the configuration of the first construction member 10 will be described. FIG. 1 is a perspective view showing a state in which a first construction member and a second construction member are connected according to an embodiment of the present invention. FIG. 2 is an enlarged view of area A in FIG. 1, where (a) is a front view and (b) is a plan view. In the following description, the X direction in FIG. The direction is the front-rear direction of the first construction member 10 (the +Y direction is the front direction of the first construction member 10, and the -Y direction is the rearward direction of the first construction member 10), and the Z direction in FIG. Directions (+Z direction is the upward direction of the first construction member 10, -Z direction is the downward direction of the first construction member 10).

The first construction member 10 is a construction member that constitutes an unillustrated architectural structure (for example, an office building, etc.). The first construction member 10 is made of, for example, a known construction floor material (eg, a long steel deck plate), and has a rectangular planar shape. 2, the first construction member 10 is arranged substantially horizontally so that the longitudinal direction of the first construction member 10 substantially extends along the front-rear direction.

Although the specific configuration of the first construction member 10 is arbitrary, in the embodiment, the left end surface and the right end surface of the first construction member 10 are formed in a substantially inclined shape. As shown in FIGS. 1 and 2(a), it is formed so as to incline upward from the inner side to the outer side in the left-right direction. However, the present invention is not limited to this, and for example, the left end surface and the right end surface of the first construction member 10 may be formed as flat side surfaces along the vertical direction.

(Construction-Second construction member)
Returning to FIG. 1, next, the configuration of the second construction members 20a, 20b will be described. The second construction members 20a and 20b are construction members that form a building structure and support the first construction member 10. As shown in FIG. The second construction members 20a and 20b are configured using, for example, known construction beams (as an example, long beams made of H-shaped steel) or the like, and are specifically shown in FIG. , a plate-like upper flange portion 21, a plate-like lower flange portion 22, and a plate-like web portion 23 connecting the upper flange portion 21 and the lower flange portion 22, respectively. Further, as shown in FIG. 1, the second construction member 20a is provided on the left side of the first construction member 10, and the second construction member 20b is provided on the right side of the first construction member 10. Specifically, are placed on an installation surface (not shown) so that the longitudinal direction of the second construction members 20a and 20b extends along the front-rear direction.

Further, although the specific sizes of the second construction members 20a and 20b are arbitrary, they are set as follows in the embodiment. That is, as shown in FIG. 1, the length of the second construction members 20a and 20b in the left-right direction is set shorter than the length of the first construction member 10 in the left-right direction. In addition, the longitudinal length of the second construction members 20a and 20b is set to be longer than (or substantially the same as) the length of the first construction member 10 in the longitudinal direction. Further, the vertical length of the second construction members 20a and 20b is set longer than the vertical length of the first construction member 10. As shown in FIG. More specifically, the vertical length of each of the upper flange portion 21 and the lower flange portion 22 of the second construction members 20 a and 20 b is set shorter than the vertical length of the first construction member 10 . The vertical length of each of the web portions 23 of the second construction members 20a and 20b is set longer than the vertical length of the first construction member 10. As shown in FIG.

The first construction member 10 and the second construction members 20a and 20b may be installed by any method. are installed so that they face each other. Specifically, as shown in FIGS. 1 and 2A, the first construction member 10 is arranged so that the left end surface of the first construction member 10 and the right end surface of the upper flange portion 21 of the second construction member 20a face each other. The member 10 and the second construction member 20a are spaced apart from each other. 1, the first construction member 10 and the second construction member 20b are arranged so that the right end surface of the first construction member 10 faces the left end surface of the upper flange portion 21 of the second construction member 20b. are spaced apart from each other. In addition, what includes the above-described "first construction member 10" and "second construction member 20a" and what includes the above-described "first construction member 10" and "second construction member 20b" are not included in the scope of claims. corresponds to "a pair of construction members" in

(Configuration - connection structure)
Returning to FIG. 1, the connection structure will now be described. A connection structure is a structure for connecting a pair of construction members. In the embodiment, the connection structure includes a first connection structure for connecting the first construction member 10 and the second construction member 20a, and a first connection structure for connecting the first construction member 10 and the second construction member 20b. and a second connection structure. However, since the configurations of the first connection structure and the second connection structure are substantially the same, only the configuration of the first connection structure will be described below.

As for the feature of this first connection structure, as shown in FIGS.

(Configuration - Connection structure - Abutment part)
Returning to FIG. 1, the contact portion 30 is contact means for contacting either the first construction member 10 or the second construction member 20a. The contact portion 30 is formed of a substantially flat plate-like body (a so-called flat bar), and is provided substantially horizontally on the first construction member 10 as shown in FIG.

The shape and size of the contact portion 30 can be arbitrarily set as long as the first construction member 10 can be placed on the second construction member 20a via the contact portion 30. It is set as follows. That is, as shown in FIGS. 1 and 2, the planar shape of the contact portion 30 is set to be substantially rectangular. The length of the contact portion 30 in the left-right direction is set shorter than the length of the first construction member 10 in the left-right direction. The length of the contact portion 30 in the front-rear direction is set substantially equal to the length in the front-rear direction of the first construction member 10 . The length of the contact portion 30 in the vertical direction is set shorter than the length of the first construction member 10 in the vertical direction.

In addition, although the method of installing the contact portion 30 is arbitrary, in the embodiment, the contact portion 30 is installed by projecting toward the second construction member 20a so as to contact the second construction member 20a. Specifically, as shown in FIG. 2, from the upper part of the left end of the first construction member 10 toward the second construction member 20a so as to abut on the upper surface of the upper flange portion 21 of the second construction member 20a. It is installed by being protruded.

Moreover, although the method of forming the contact portion 30 is arbitrary, in the embodiment, the contact portion 30 and the first construction member 10 are integrally formed. As a result, it is possible to omit the trouble of attaching the contact portion 30 to the first construction member 10, and it is possible to improve the manufacturability of the first connection structure. However, the present invention is not limited to this, and the contact portion 30 and the first construction member 10 may be formed separately, and the contact portion 30 may be fixed to the first construction member 10 with a fixture or the like.

(Configuration - connection structure - clamping part)
3A and 3B are views showing a first holding piece 50, which will be described later, in which FIG. 3A is a front view and FIG. 3B is a plan view. 4A and 4B are views showing a second holding piece 60, which will be described later, in which FIG. 4A is a front view and FIG. 4B is a plan view. Returning to FIG. 1, the holding portion 40 is a holding means for overlapping and holding the contact portion 30 and the second construction member 20a. As shown in FIG. 1, a plurality of clamping portions 40 are arranged side by side in the front-rear direction at intervals at the contact portion 30. As shown in FIG. It has a strip 60 and a clamping part 70 .

(Configuration-connection structure-clamping portion-first clamping piece)
The first clamping piece 50 is part of the basic structure of the clamping section 40 . The first holding piece 50 is formed of a substantially flat plate-like body and provided at a position where it can come into contact with the contact portion 30 . Specifically, as shown in FIG. 2 , on the upper side of the contact portion 30 , the lower surface of the first holding piece 50 is arranged at a position where it can contact the upper surface of the contact portion 30 .

Further, although the shape and size of the first holding piece 50 are arbitrary, they are set as follows in the embodiment. That is, as shown in FIGS. 2 and 3, the planar shape of the first clamping piece 50 is set to be substantially rectangular. Further, the length of the first holding piece 50 in the left-right direction is set substantially equal to (or shorter than) the length of the contact portion 30 in the left-right direction. Further, the length of the first clamping piece 50 in the front-rear direction is set shorter than the length of the contact portion 30 in the front-rear direction. Also, the thickness of the first holding piece 50 is set to be substantially the same (or thinner) than the vertical length of the contact portion 30 .

(Configuration-connection structure-clamping portion-second clamping piece)
Returning to FIG. 2 , the second clamping piece 60 is another part of the basic structure of the clamping section 40 . The second holding piece 60 is formed of a plate-like body having an L-shaped cross section along the XZ plane, and the side surface of the second construction member 20a that contacts the contact portion 30 It is provided at a position where it can come into contact with the side surface on the opposite side. Specifically, as shown in FIG. 2A, on the lower side of the contact portion 30, the upper surface of the L-shaped horizontal rod portion of the second holding piece 60 contacts the lower surface of the second construction member 20a. located where possible.

Moreover, although the size of the second holding piece 60 is arbitrary, it is set as follows in the embodiment. That is, as shown in FIGS. 2A and 4, the length of the second clamping piece 60 in the left-right direction is set substantially equal to (or shorter than) the length of the contact portion 30 in the left-right direction. . Further, the length of the second holding piece 60 in the front-rear direction is set shorter than the length of the contact portion 30 in the front-rear direction. Also, the thickness of the second holding piece 60 is set to be substantially the same (or thinner) than the vertical length of the contact portion 30 .

Moreover, although the method of attaching the first clamping piece 50 and the second clamping piece 60 is arbitrary, in the embodiment, the first clamping piece 50 and the second clamping piece 60 are rotated with respect to the tightening portion 70. installed freely. Specifically, the insertion hole 51 of FIG. 3 formed in the first clamping piece 50 and the insertion hole 61 of FIG. By inserting a bolt body 71 a of the tightening portion 70 , which will be described later, through the insertion hole 61 , it is rotatably attached to the tightening portion 70 . As a result, the first clamping piece 50 and the second clamping piece 60 can be rotated with respect to the tightening part 70 according to the situation, and the first construction member 10 can be held by the first clamping piece 50 and the second clamping piece 60 . Alternatively, it is possible to avoid obstructing the installation of the second construction member 20a.

(Configuration - Connection structure - Clamping part - Tightening part)
Returning to FIG. 2, the tightening portion 70 clamps the first clamping piece 50 with a predetermined pressure while the contact portion 30 and the second construction member 20a are sandwiched between the first clamping piece 50 and the second clamping piece 60. and the second clamping piece 60, and as shown in FIG.

(Structure - Connection structure - Clamping part - Tightening part - Bolt)
The bolt 71 is for attaching the nut 72 . The bolt 71 is configured using, for example, a known bolt (a steel bolt as an example) or the like, and as shown in FIG. and a head portion 71b provided at the end of the head portion 71b. The bolt 71 has a head portion 71b located below the second clamping piece 60, and a bolt body 71a formed in the insertion hole 51 of the first clamping piece 50 and the contact portion 30 ( not shown), and the insertion hole 61 of the second holding piece 60. As shown in FIG.

(Construction - Connection structure - Clamping part - Tightening part - Nut)
The nut 72 is for tightening the first clamping piece 50 and the second clamping piece 60 . This nut 72 is configured using, for example, a known nut (a steel nut as an example) or the like, and as shown in FIG. And it is arranged so as to be inserted into the bolt body 71a. The nut 72 may be attached by any method, but in the embodiment, when the nut 72 is tightened, the nut 72 presses the first clamping piece 50 with a predetermined pressure, and the second clamping piece 50 is pressed by the head portion 71b. The piece 60 is attached to the bolt body 71a so that it is pressed with a predetermined pressure.

With such a configuration of the tightening portion 70 , the tightening portion 70 can be easily constructed using ready-made members, and the manufacturability of the tightening portion 70 can be improved.

With the first connection structure as described above, the first construction member 10 and the second construction member 20a can be connected by sandwiching the abutment portion 30 and the second construction member 20a by the sandwiching portion 40 in an overlapping manner. Therefore, compared to the conventional technology (technology for connecting a pair of construction members by welding), the labor involved in connecting the first construction member 10 and the second construction member 20a can be reduced, and workability can be improved. . In addition, since no sparks or the like are generated when connecting the first construction member 10 and the second construction member 20a, it is possible to avoid the occurrence of fires and electric shock disasters due to the sparks, etc. Makes it easier to ensure safety on site. Further, in a state in which the contact portion 30 and the second construction member 20a are sandwiched between the first clamping piece 50 and the second clamping piece 60, the first clamping piece 50 and the second clamping piece 50 are clamped by the tightening portion 70 with a predetermined pressure. The pieces 60 can be tightened, making it possible to connect the first construction member 10 and the second construction member 20a relatively firmly.

(connection method)
Next, a connection method for connecting the first construction member 10 and the second construction members 20a and 20b will be described.

5A and 5B are diagrams showing a mounting process of a connection method to be described later, in which FIG. 5A shows the area corresponding to FIG. 2A, and FIG. 5B shows the area corresponding to FIG. is. FIGS. 6A and 6B are diagrams showing a mounting process of a connection method to be described later, where FIG. 6A shows the area corresponding to FIG. 2A, and FIG. 6B shows the area corresponding to FIG. 2B. It is a diagram.

(Connection method - installation process)
First, the mounting process will be described. The attachment step is a step of attaching the holding portion 40 to the first construction member 10 .

Specifically, as shown in FIG. 5, at the contact portions 30 provided at the left end and the right end of the first construction member 10, a plurality of holding portions 40 are spaced apart from each other along the front-rear direction. Install side by side. Here, the mounting method of each holding portion 40 is arbitrary, but for example, the insertion hole 51 of the first holding piece 50, the insertion hole formed in the contact portion 30, and the insertion hole 61 of the second holding piece 60 After inserting the bolt body 71a of the tightening portion 70 from below, the nut 72 may be inserted through the bolt body 71a and tightened. In this case, for example, it is desirable to attach the first clamping piece 50 and the second clamping piece 60 so that the first clamping piece 50 and the second clamping piece 60 do not hinder the operation of the mounting step. As an example, as shown in FIG. 5(b), the first clamping piece 50 is attached such that the longitudinal direction of the first clamping piece 50 extends along the front-rear direction, and as shown in FIG. The second clamping piece 60 may be attached so that the L-shaped horizontal bar portion of the clamping piece 60 protrudes toward the first construction member 10 side.

(Connection method - placement process)
Next, the placement process will be described. The placing process is a process of placing the first construction member 10 on the second construction members 20a and 20b after the mounting process.

Specifically, first, the second construction members 20a and 20b are arranged with a space therebetween on the installation surface. Next, as shown in FIG. 6, the second construction members 20a and 20b are lifted or suspended using a lifting device (for example, a known crane or the like) or a wire (not shown) so that the first construction member 10 is applied. The first construction member 10 is placed on the second construction members 20a, 20b so that the contact portion 30 contacts the upper flange portion 21 of each of the second construction members 20a, 20b.

In this case, the specific configuration of the contact portion 30 is arbitrary, but for example, the contact portion 30 may be configured to be connectable to a slinging tool (for example, a shackle, etc.) not shown. As an example, when the slinging tool is a shackle, a plurality of insertion holes (not shown) are formed in the contact portion 30 (specifically, the portion of the contact portion 30 other than the portion to which the holding portion 40 is attached). Then, a bolt member (not shown) is inserted through each of the plurality of through holes and through holes (not shown) formed in a connecting member (for example, a known angle member) (not shown) connected to the shackle. The shackle may be connected by inserting the nut member into the bolt member and tightening it. As a result, the abutting portion 30 and the slinging tool can be connected, and there is no need to separately provide an attachment member for attaching the slinging tool to the first construction member 10. Therefore, the manufacturability of the first construction member 10 is improved. easier to maintain.

(Connection method - Connection process)
Returning to FIG. 2, the connection process will now be described. The connecting step is a step of connecting the first construction member 10 and each of the second construction members 20a and 20b after the placing step.

Specifically, as shown in FIG. 2 , each sandwiching portion 40 is sandwiched between the contact portion 30 and the second construction member 20a (or the second construction member 20b) so as to sandwich the first construction member 10 and the second construction member 20b. Each of the second construction members 20a, 20b is connected. Here, the clamping method of each clamping part 40 is arbitrary, but for example, the contact part 30 and the second construction member 20a (or the second construction member 20b) are held by the first clamping piece 50 and the second clamping piece 60. After rotating the first clamping piece 50 and the second clamping piece 60 to a clampable position, tighten the nut 72 of the clamping part 70 using a tightening device (for example, a known impact driver, etc.) (not shown). It may be sandwiched by

With the connection method as described above, compared to the conventional technology (technique for connecting a pair of construction members by welding), the labor involved in connecting the first construction member 10 and the second construction members 20a and 20b can be reduced. It can be reduced and workability can be improved. In addition, since no sparks or the like are generated when connecting the first construction member 10 and the second construction members 20a and 20b, it is possible to avoid the occurrence of fires or electric shocks caused by the sparks. It becomes easier to ensure the safety of the work site where the connection is made.

(Effect of Embodiment)
As described above, according to the embodiment, the abutment portion 30 provided on the first construction member 10 is configured to contact the second construction member 20a (or the second construction member 20b). (or the second construction member 20b), and a sandwiching portion 40 for overlapping and sandwiching the contact portion 30 and the second construction member 20a (or the second construction member 20b). , the contact portion 30 and the second construction member 20a (or the second construction member 20b) are overlapped and clamped by the clamping portion 40, thereby separating the first construction member 10 and the second construction member 20a. Can connect. Therefore, as compared with the conventional technique (the technique of connecting a pair of construction members by welding), the labor for connecting the first construction member 10 and the second construction member 20a (or the second construction member 20b) can be reduced. , workability can be improved. In addition, since no sparks or the like are generated when connecting the first construction member 10 and the second construction member 20a (or the second construction member 20b), the occurrence of fire or electric shock hazard due to the sparks can be avoided. This makes it easier to ensure the safety of the work site where the connection is made.

In addition, in a state in which the contact portion 30 and the second construction member 20a (or the second construction member 20b) are sandwiched between the first clamping piece 50 and the second clamping piece 60, the clamping portion 40 is subjected to a predetermined pressure. Since the tightening portion 70 for tightening the first clamping piece 50 and the second clamping piece 60 is provided, the contact portion 30 and the second construction member 20a (or the second construction member 20a) are secured by the first clamping piece 50 and the second clamping piece 60. 20b) are sandwiched, the first clamping piece 50 and the second clamping piece 60 can be clamped with a predetermined pressure by the clamping part 70, and the first construction member 10 and the second construction member 20a (or A relatively strong connection with the second construction member 20b) is thus possible.

Also, since the first clamping piece 50 and the second clamping piece 60 are rotatably attached to the clamping portion 70, the first clamping piece 50 and the second clamping piece 60 can be moved from the clamping portion 70 depending on the situation. to avoid obstruction of installation of the first construction member 10 and the second construction member 20a (or the second construction member 20b) by the first clamping piece 50 and the second clamping piece 60. can.

The tightening portion 70 includes a bolt 71 having an elongated bolt body 71a and a head portion 71b provided at one end in the longitudinal direction of the bolt body 71a, and is insertable into the bolt body 71a. Since the nut 72 is provided, the tightening portion 70 can be easily configured using ready-made members, and the manufacturability of the tightening portion 70 can be enhanced.

Further, since the contact portion 30 is configured to be connectable to a slinging tool, the contacting portion 30 and the slinging tool can be connected, and a mounting member for attaching the slinging tool to the first construction member 10 is provided. Since there is no need to separately provide the , the manufacturability of the first construction member 10 can be easily maintained.

[III] Modifications to the Embodiments Although the embodiments of the present invention have been described above, specific configurations and means of the present invention are within the scope of the technical ideas of each invention described in the claims. , can be arbitrarily modified and improved. Such modifications will be described below.

(Problem to be solved and effect of invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves problems not described above or achieves effects not described above. and may solve only part of the problems described or provide only part of the advantages described.

(Regarding shapes, numbers, structures, and time series)
With respect to the components illustrated in the embodiments and drawings, the shape, numerical value, structure of multiple components, or time-series interrelationships may be arbitrarily modified and improved within the scope of the technical idea of the present invention. can be done.

(Regarding the first construction member and the second construction member)
Although the first construction member 10 and the second construction members 20a and 20b are steel construction members in the above embodiment, they may be concrete construction members, for example. .

In the above embodiment, the first construction member 10 and the second construction member 20a are separated so that the left end surface of the first construction member 10 faces the right end surface of the upper flange portion 21 of the second construction member 20a. Although it has been described that they are spaced apart from each other, the present invention is not limited to this. The first construction member 10 and the second construction member 20a may be installed with no space between them (the first construction member 10 and the second construction member 20b are installed in substantially the same manner). In this case, the length of the contact portion 30 in the front-rear direction is set longer than the length in the front-rear direction of the first construction member 10, and the front end portion and the vicinity thereof and the rear end portion of the contact portion 30 and the vicinity thereof The first construction member 10 and the second construction member 20a may be connected by providing a clamping portion 40 .

(Regarding contact part)
In the embodiment described above, the contact portion 30 is provided on the first construction member 10, but is not limited to this, and may be provided on the second construction members 20a and 20b, for example.

Further, in the above-described embodiment, in the first connection structure, the second construction member 10 extends from the left end of the first construction member 10 so that the abutment portion 30 contacts the upper surface of the upper flange portion 21 of the second construction member 20a. Although it has been described that it projects toward the member 20a, it is not limited to this. For example, from the left end of the first construction member 10 to the second construction member 20a, the second construction member 20a is extended from the left end so as to abut on the side surface (for example, the front surface, the rear surface, and the bottom surface of the upper flange portion 21) other than the upper surface of the upper flange portion 21 of the second construction member 20a. 20a may be projected. Alternatively, the first construction member 10 is stretched from the left end toward the second construction member 20a so as to abut on the side surface of the portion other than the upper flange portion 21 of the second construction member 20a (for example, the lower flange portion 22). may be issued.

Further, in the above-described embodiment, the contact portion 30 is configured to be connectable to a slinging tool. However, the present invention is not limited to this. .

(Regarding the first clamping piece and the second clamping piece)
In the above-described embodiment, the first clamping piece 50 and the second clamping piece 60 are rotatably attached to the tightening portion 70. However, the present invention is not limited to this. It may be attached so that it cannot rotate with respect to.

Further, in the above-described embodiment, the second holding piece 60 is formed of a plate-like body having an L-shaped cross section along the XZ plane. , may be formed of a flat plate-like body.

(About the tightening part)
In the above-described embodiment, the tightening portion 70 is configured to include the bolt 71 and the nut 72. However, the present invention is not limited to this. and a pair of nuts.

(About connection method)
In the embodiment described above, in the connection method, the mounting process is performed after the mounting process. However, the mounting process may be performed before the mounting process without being limited to this.

(Appendix)
The connection structure for construction members of appendix 1 is a pair of construction members, and is a connection structure for connecting a pair of construction members provided so that the end surfaces of the pair of construction members are butted against each other, Contact means provided on either one of the pair of construction members, the abutment projecting toward the other of the pair of construction members so as to contact the other of the pair of construction members. Abutting means and clamping means for stacking and clamping the abutting means and the other of the pair of construction members are provided.

The connection structure for construction members according to Appendix 2 is the connection structure for construction members according to Appendix 1, wherein the clamping means includes a first clamping piece provided at a position capable of coming into contact with the contact means, and the pair of clamping pieces. a second clamping piece provided at a position capable of coming into contact with one of the other side surfaces of the construction member that is opposite to the side surface that comes into contact with the contact means, the first clamping piece and the second clamping piece a tightening portion for tightening the first clamping piece and the second clamping piece with a predetermined pressure in a state in which the contact means and the other of the pair of construction members are sandwiched by the pieces. rice field.

The connection structure for construction members according to Appendix 3 is the connection structure for construction members according to Appendix 2, wherein the first clamping piece and the second clamping piece are rotatably attached to the tightening portion.

The construction member connection structure of Appendix 4 is the construction member connection structure of Appendix 2 or 3, wherein the tightening portion is provided at one end in the longitudinal direction of a long bolt body and the bolt body. and a nut that can be inserted into the bolt body.

In the connection structure for construction members according to Appendix 5, in the connection structure for construction members according to any one of Appendixes 2 to 4, the abutting means is configured to be connectable to a slinging tool.

(Effect of Supplementary Note)
According to the connection structure for construction members described in appendix 1, the abutment means provided on one of the pair of construction members is provided so as to abut on the other of the pair of construction members. and a clamping means for stacking and clamping the contacting means and the other of the pair of construction members. A pair of construction members can be connected by overlapping and sandwiching the means and the other of the pair of construction members. Therefore, as compared with the conventional technology (technique for connecting a pair of construction members by welding), it is possible to reduce the labor required for connecting a pair of construction members and improve workability. In addition, since no sparks are generated when connecting a pair of construction members, it is possible to avoid the occurrence of fires and electric shocks due to the sparks, etc. easier.

According to the construction member connection structure described in appendix 2, the clamping means is configured such that the contact means and the other of the pair of construction members are clamped by the first clamping piece and the second clamping piece in a predetermined state. Since the clamping portion is provided for clamping the first clamping piece and the second clamping piece with pressure, the abutting means and the other of the pair of construction members are clamped by the first clamping piece and the second clamping piece. In this state, the tightening portion can tighten the first clamping piece and the second clamping piece with a predetermined pressure, making it possible to connect the pair of construction members relatively firmly.

According to the construction member connection structure described in Supplementary Note 3, since the first clamping piece and the second clamping piece are rotatably attached to the tightening portion, the first clamping piece and the second clamping piece can be attached according to the situation. The clamping piece can be rotated with respect to the tightening part, and it is possible to avoid obstruction of installation of at least one of the pair of construction members by the first clamping piece and the second clamping piece.

According to the connection structure for construction members described in appendix 4, the bolt has a bolt body in which the tightening portion has an elongated bolt body and a head portion provided at one end in the longitudinal direction of the bolt body, and the bolt body and a nut that can be inserted through the member, the tightening portion can be easily configured using a ready-made member, and the manufacturability of the tightening portion can be improved.

According to the construction member connection structure described in appendix 5, since the abutting means is configured to be connectable to the slinging tool, the abutting means and the slinging tool can be connected, and any one of the pair of construction members can be connected. Since there is no need to separately provide an attachment member for attaching a slinging tool to one of the pair of construction members, it becomes easier to maintain the manufacturability of either one of the pair of construction members.

10 first construction member 20a, 20b second construction member 21 upper flange portion 22 lower flange portion 23 web portion 30 contact portion 40 clamping portion 50 first clamping piece 51 insertion hole 60 second clamping piece 61 insertion hole 70 tightening portion 71 bolt 71a bolt body 71b head portion 72 nut

Claims (3)

A connection structure for connecting a pair of construction members, which are a pair of construction members and are provided so that the end faces of the pair of construction members are butted against each other,
Abutment means provided on one of the pair of construction members, the abutment means projecting toward the other of the pair of construction members so as to abut on the other of the pair of construction members. an abutment means;
clamping means for stacking and clamping the contact means and the other of the pair of construction members;
The end face of one of the pair of construction members, which is located on the other side of the pair of construction members, is brought into contact with the end face of one of the pair of construction members from the inner side to the outer side of the pair of construction members. formed so as to be inclined toward the means side,
The other end face of the pair of construction members, which is located on one side of the pair of construction members, is flattened along the thickness direction of the other of the pair of construction members. form on the surface,
The holding means is
a first clamping piece provided at a position capable of coming into contact with the contact means;
a second clamping piece provided at a position capable of coming into contact with one of the other side surfaces of the pair of construction members, the side surface being opposite to the side surface coming into contact with the contact means;
In a state in which the contact means and the other of the pair of construction members are sandwiched between the first and second clamping pieces, the first and second clamping pieces are pressed by a predetermined pressure. a tightening part for tightening,
attaching the first clamping piece and the second clamping piece so as to be rotatable with respect to the tightening portion;
By forming the second holding piece into a plate-like body having an L-shaped side surface, the contact means and the other of the pair of construction members are held by the first holding piece and the second holding piece. When the first clamping piece and the second clamping piece are rotated 180 degrees from the position where clamping is possible to the position where clamping is not possible, the L-shaped vertical bar portion of the second clamping piece and the other of the pair of construction members and the end surface parallel to the YZ plane can abut, and the first clamping piece and the second clamping piece are rotated 180 degrees from the clamping impossible position to the clamping position At this time, the L-shaped horizontal bar portion of the second clamping piece and the other of the pair of construction members can abut against each other,
Connection structure of construction members. The tightening portion is
a bolt having an elongated bolt body and a head provided at one longitudinal end of the bolt body;
a nut that can be inserted into the bolt body,
The connection structure for construction members according to claim 1. wherein the abutment means is configured to be connectable with a slinging tool,
The connection structure for construction members according to claim 1 or 2.

Images