JP6933900B2 - Column-beam joining method and column-beam joining structure - Google Patents

Description

The present invention relates to joining columns and beams.

Conventionally, as a method of joining a column and a beam, for example, a method of joining a beam formed of a wood-based material to a column made of reinforced concrete is known (see Non-Patent Document 1).
In this method, one end side of the reinforcing bar built in the beam is projected by a predetermined length from the grain surface of the beam, and the reinforcing bars protruding from the grain surface of the left and right beams are connected by a mechanical joint. ing.
Further, the screw hole formed in the beam is provided with a screw hole formed so as to extend from one end face of the beam formed of a wood-based material to the other end face side, an anchor member, and a connecting bolt. The anchor member is screwed, and the tip end side of the connecting bolt is screwed to the threaded portion formed on the bottom side of the hollow hole extending from one end face of the anchor member to the other end face side, and the connecting bolt A beam column connecting portion structure in which the rear end side is projected from a hollow hole is known (see Patent Document 1).

"Study on Joining Method of Reinforced Concrete Columns and Laminated Wood Beams", Architectural Institute of Japan Conference Academic Lecture Abstracts (Kyushu), August 2016, p. 1495-1496

Japanese Unexamined Patent Publication No. 2007-231644

However, in the above-mentioned conventional technique, the structure on the one end side of the beam for incorporating the connecting material such as the reinforcing bar and the connecting bolt on the one end side of the beam becomes complicated, or the connecting material is incorporated on the one end side. There was a problem that the manufacturing cost of the beam became high.
Further, in the prior art disclosed in Non-Patent Document 1, since the reinforcing bars protruding from the wood end surface of the left and right beams are connected by a mechanical joint, the position of the reinforcing bars protruding from the wood end surface of the left beam and the position of the reinforcing bars If the positions of the reinforcing bars protruding from the grain surface of the right beam are misaligned, the reinforcing bars protruding from the grain surface of the left and right beams cannot be connected by a mechanical joint.
INDUSTRIAL APPLICABILITY According to the present invention, the structure of a beam connected to a column can be simplified, the manufacturing cost of the beam can be suppressed, and a method of joining a column and a beam, which can join the column and the beam without using a mechanical joint, and a beam-to-beam joining method. , Provides a joint structure of columns and beams.

The method of joining a pillar of a reinforced concrete structure or a pillar of a precast reinforced concrete structure and a beam formed of a wood-based material according to the present invention is a groove forming a groove that opens on an end surface on the end side of the beam and a side surface to be an upper surface. The forming step, the beam installation step in which the end side in which the groove of the beam is formed on the side edge side of the upper end surface of the column is placed, and the through material are positioned in the groove of the beam and above the upper end surface of the column. A threading material that is installed in multiple upper and lower parts and a threading material that is inserted into the groove and the gap between the peripheral wall of the groove is filled with an epoxy-based adhesive as a filler to fix the threading material to the beam. A method in which a fixing step and a concrete placing step for placing concrete above the upper end surface of the beam are provided in order, or a groove forming a groove to be opened on the end surface on the end side of the beam and the side surface to be the upper surface. The forming step and the end side on which the groove of one beam is formed on one side edge side facing each other on the upper end surface of the column are placed, and the other on the other side edge side facing each other on the upper end surface of the column. A beam installation step in which the end side where the groove of the beam is formed is placed so that the end faces where the groove of each beam opens faces each other, and a through material is placed in each groove of each beam and above the upper end surface of the column. The through material installation step to install multiple through materials so that they are positioned, and the gap between the through material inserted in the groove and the peripheral wall of the groove is filled with an epoxy-based adhesive as a filler to make the through material into a beam. Since it is a method in which a through material fixing step for fixing and a concrete placing step for placing concrete above the upper end surface of the column are provided in order, the structure of the beam connected to the column can be easily constructed and the beam can be manufactured. The cost can be suppressed, the column and the beam can be joined without using a mechanical joint, and the integrity between the beam and the through material is improved.
Further, the joint structure between the pillar of the reinforced concrete structure or the pillar of the precast reinforced concrete structure and the beam formed of the wood-based material according to the present invention is a beam in which the end side is placed on the side edge side of the upper end surface of the pillar. When a groove formed so as to open into a side surface of the end surface and the upper surface of the end portion side of the placed on a beam on a side edge of the upper end face of the column, one end of which is inserted into the groove of the beam, and the other An epoxy-based material that is provided with a plurality of through-materials installed above and below so that the end side is located above the upper end surface of the column, and is filled in the gap between the through-material inserted in the groove and the peripheral wall of the groove. The threading material is fixed to the beam by the adhesive, and concrete is cast above the upper end surface of the column to join the column to the beam, or the column and the upper end surface of the column face each other. One beam on which the end side is placed on the side edge side of the column, the other beam on which the end side is placed on the other side edge side facing each other on the upper end surface of the column, and each of the beams facing each other on the upper end surface of the column. A groove formed so as to open on the end surface of each beam placed on the side edge side and the side surface to be the upper surface, and both end sides are inserted into each groove of each beam, and the central portion is a pillar. and a plurality of through material disposed vertically so as to be positioned above the upper end face, through the epoxy-based adhesive filled in a gap between the inserted through member and the groove of the peripheral wall in the groove Since the material is fixed to the beam and concrete is cast above the upper end surface of the beam to join the column and the beam, the structure of the beam connected to the column can be easily made. The manufacturing cost can be suppressed, the column and the beam can be joined without using a mechanical joint, and the integrity between the beam and the through material is improved.
Further, as the through material, a through material having a reinforcing bar portion and a fixing portion having a diameter larger than the diameter of the reinforcing bar portion provided at the end portion of the reinforcing bar portion is used, and in the groove forming step, the reinforcing bar portion is used. A groove is formed having a reinforcing bar insertion groove to be inserted and a fixing portion insertion groove in which the groove width is formed wider than the groove width of the reinforcing bar insertion groove and the fixing portion is inserted. Since the reinforcing bar portion of the through material is inserted into the reinforcing bar insertion groove portion and the fixing portion of the through material is inserted into the fixing portion insertion groove portion, the fixing performance of the through material to the beam is improved.
Further, the through material includes a reinforcing bar portion and a fixing portion having a diameter larger than the diameter of the reinforcing bar portion provided at the end portion of the reinforcing bar portion, and the groove is a reinforcing bar insertion groove portion into which the reinforcing bar portion is inserted. Since the groove width is formed wider than the groove width of the reinforcing bar insertion groove portion and the fixing portion insertion groove portion into which the fixing portion is inserted is provided, the fixing performance of the through material to the beam is improved.
Further, the through material is characterized in that it is inserted into the groove and installed so as to be located on the shear reinforcing bar installed above the upper end surface of the column.

The plan view which shows the joint structure of a column and a beam. A cross-sectional view taken along the line AA of FIG. 1 showing a joint structure of columns and beams. The figure which shows another example of a threading material.

The method of joining the column and the beam according to the embodiment is a method of joining the beam 1 formed of a wood-based material to the column 2 of the reinforced concrete structure in advance, and the end surface 11 and the upper surface 12 on the end portion 10 side of the beam 1 are joined in advance. A groove 13 that opens to the side surface is formed, and the end portion 10 side of one beam 1A is placed on the side of one side edge 21a facing each other on the upper end surface 20 of the pillar 2, and the pillar 2 is placed. The end 10 side of the other beam 1B is placed on the other side edge 21b side facing each other on the upper end surface 20, the end faces 11 and 11 of the beams 1 and 1 face each other, and the through member 3 is passed through each beam. After being installed so as to be located in each of the grooves 13 and 13 of 1 and 1 and on the shear reinforcing bar 22 installed above the upper end surface 20 of the column 2, it is not shown above the upper end surface 20 of the column 2. This is a method of placing the concrete of the above and joining the columns 2 and the beams 1A and 1B.
That is, the method of joining the column and the beam according to the first embodiment is a groove forming step for forming a groove 13 that opens in the end surface 11 and the side surface of the beam 1 on the end 10 side, and the upper end surface 20 of the column 2. The end 10 side on which the groove 13 of one beam 1A is formed is placed on the one side edge 21a side facing each other, and the other beam is placed on the other side edge 21b side facing each other on the upper end surface 20 of the column 2. A beam installation step in which the end portions 10 and 10 on which the groove 13 of 1B is formed is placed so that the end faces 11 and 11 at which the grooves 13 and 13 of the beams 1A and 1B are opened face each other and the through member 3 are provided. A threader installation step to be installed so as to be located in each groove 13 and 13 of each beam 1A; 1B and above the shear reinforcing bar 22 installed above the upper end surface 20 of the column 2 and a threader 3 are installed. This is a method including a concrete placing step of placing concrete above the upper end surface 20 of the pillar 2.

The joint structure between the column 2 and the beam 1 joined by the joining method, that is, the joint structure in which the column 2 and the beam 1 are joined is one of the column 2 and the upper end surface 20 of the column 2 facing each other. One beam 1A on which the end 10 side is mounted on the side edge 21a side, and the other beam 1B on which the end 10 side is mounted on the other side edge 21b side facing each other on the upper end surface 20 of the column 2. Formed so as to open to the end surface 11 on the end 10 and 10 sides of the beams 1A and 1B mounted on the side edges 21a and 21b facing each other on the upper end surface 20 of the pillar 2 and the side surface to be the upper surface 12. The grooves 13 and 13 are formed, and both ends are inserted into the grooves 13 and 13 of the beams 1A and 1B, and the central portion is placed on the shear reinforcing bar 22 installed above the upper end surface 20 of the column 2. It has a structure in which a through member 3 installed so as to be positioned is provided, and concrete (not shown) is cast above the upper end surface 20 of the column 2 to join the column 2 and the beam 1.

The beam 1 is, for example, a beam formed by CLT (Cross Laminated Timber (wood laminated lumber)).
The column 2 is a column made of reinforced concrete or a column made of precast reinforced concrete formed by placing concrete at the site, and is formed so that the column main bar 23 protrudes from the upper end surface 20.

The through member 3 is an end portion of each beam 1A, 1B placed on the side edges 21a, 21b whose end portions 10 and 10 sides face each other on the upper end surface 20 of the pillar 2 so that the end surfaces 11 and 11 face each other. It is a connecting member that is installed so as to straddle 10 and 10 and connects the beam 1A; 1B and the column 2.
As the through material 3, for example, a reinforcing bar having fixing portions 31 and 31 at both ends is used. That is, as the through material 3, a rod material having a structure including the reinforcing bar portion 32 and the fixing portions 31 and 31 having a diameter larger than the diameter of the reinforcing bar portion 32 provided at both ends of the reinforcing bar portion 32 is used.
The fixing portion 31 is formed of, for example, a disk body provided at the end of the reinforcing bar portion 32. The disk body is formed of a disk body having a diameter larger than the diameter of the reinforcing bar portion 32 centered on the center line of the reinforcing bar portion 32.

The groove 13 is formed by, for example, a groove that opens to the side surface 12 and the end surface 11 when the end portion 10 side of the beam 1 is installed on the side edge 21 side of the upper end surface 20 of the pillar 2. It is provided with a reinforcing bar insertion groove portion 15 into which the reinforcing bar portion 32 on the end side of the is inserted, and a fixing portion insertion groove portion 16 into which the fixing portion 31 of the through member 3 is inserted.
That is, the groove 13 extends from the side surface that becomes the upper surface 12 on the end portion 10 side of the beam 1 installed on the side edge 21 side of the upper end surface 20 of the pillar 2 to the side surface side that becomes the lower surface 17, and one end surface. It is formed by a groove extending from 11 to the other end face side.
Then, when the beam 1 whose end 10 side is installed on the side edge 21 side of the upper end surface 20 of the pillar 2 is viewed from above, as shown in FIG. 1, it extends from one end surface 11 to the other end surface side. A fixing portion insertion groove portion 16 is formed on the extension end side of the groove 13 to be formed, and the fixing portion insertion groove portion 16 is formed in a rectangular cross section having a groove width wider than the groove width of the reinforcing bar insertion groove portion 15. That is, the groove width of the reinforcing bar insertion groove portion 15 extending from one end surface 11 to the fixing portion insertion groove portion 16 is formed to have a constant groove width that allows the reinforcing bar portion 32 of the through material 3 to be inserted and is smaller than the diameter of the fixing portion 31. The groove width of the fixing portion insertion groove portion 16 is formed to be a constant groove width into which the fixing portion 31 can be inserted.
Then, from above the beams 1A and 1B placed on the left and right sides of the pillar 2, the fixing portions 31 and 31 at both ends of the through member 3 are inserted into the fixing portion insertion groove portions 16 and 16 of the beams 1A and 1B to pass through. By inserting the reinforcing bar portions 32 on both ends of the material 3 into the reinforcing bar insertion groove portions 15 and 15, the fixing portion 31 engages with the fixing portion insertion groove portion 16. Then, by filling the filling material (not shown) between the fixing portion insertion groove portion 16 and the fixing portion 31 and between the reinforcing bar insertion groove portion 15 and the reinforcing bar portion 32, the grooves 13 and 13 are filled at the construction site. The inserted through material 3 is fixed to the beams 1A and 1B. By providing the through member 3 with the fixing portions 31; 31 in this way, the fixing performance of the through member 3 to the beams 1A and 1B is improved, and the through member 3 inserted into the groove 13 and the peripheral wall of the groove 13 are connected to each other. By filling the gap between them with a filler (not shown), the integrity of the beam 1 and the through member 3 is improved.

Further, the vertical positioning of the through material 3 is performed by placing the central portion of the reinforcing bar portion 32 of the through material 3 on the shear reinforcing bar 22 installed on the upper part of the column 2.
That is, the shear reinforcing bars 22 installed so as to surround the plurality of column main bars 23, 23 ... Protruding from the upper end surface 20 of the column 2 and connected to the column main bars 23, 23 ... When arranging in a plurality of stages, the through material 3 is installed.
For example, when two upper and lower through members 3 are installed in the groove 13, after installing the shear reinforcing bars 22 on the upper end surface 20 side of the column 2 at the site, both ends of the lower through members 3 are installed. It is inserted into the grooves 13 and 13 of the beams 1A and 1B, and the central side of the lower through member 3 is installed on the shear reinforcing bar 22. After that, after installing the shear reinforcing bars 22 in a plurality of stages upward, both ends of the upper through member 3 are inserted into the grooves 13 and 13 of the beams 1A and 1B, and the center side of the upper through member 3 is installed immediately before. It is installed on the shear reinforcing bar 22.
As shown in FIG. 2, the threading member 3 located at the lowermost position may be installed so that the fixing portion 31 comes into contact with the groove bottom of the fixing portion insertion groove portion 16. That is, the lowermost through member 3 is above the shear reinforcing bar 22 installed so that the central portion not inserted in the groove 13 surrounds the column main bar 23 projecting upward from the upper end surface 20 of the column 2. Or it may be installed so that the fixing portions 31 and 31 at both ends are in contact with the groove bottoms of the fixing portion insertion groove portions 16 and 16.

The procedure of the method of joining the column and the beam according to the embodiment will be described.
For example, as shown in FIG. 1, the end portions 10 and 10 of the beams 1A and 1B are installed on the side edges 21a and 21b that face each other in parallel on the upper end surface 20 of the column 2. One end side of the through member 3 is inserted into the groove 13 of one beam 1A installed on the upper end surface 20 of the column 2 so that the end surfaces 11 and 11 face each other on the upper end surface 20 of the column 2, and the other beam. By inserting the through member 3 into the groove 13 of 1B on the other end side, the through member 3 is provided so as to straddle the ends 10 and 10 of the beams 1A and 1B. Then, after installing a specified number of shear reinforcing bars 22 and through members 3, between the fixing portion insertion groove portion 16 and the fixing portion 31, and between the reinforcing bar portion inserting groove portion 15 and the reinforcing bar portion 32, for example, an epoxy type The beam 1A; 1B and the column 2 are joined by filling the filler such as the adhesive of the above and placing concrete above the upper end surface 20 of the column 2.
When the threading material 3 is not placed on the shear reinforcing bar 22 installed at the specified position, a reinforcing bar (for example, a discarded shear reinforcing bar) that can support the threading material 3 is provided.

According to the method of joining the column and the beam and the joining structure according to the embodiment, it is not necessary to manufacture a beam having a connecting material such as a reinforcing bar on the end 10 side, so that the beam 1 connected to the column 2 does not need to be manufactured. The structure can be simplified and the manufacturing cost of the beam 1 can be suppressed.
Further, the upper end surface 20 of the pillar 2 is opened so as to open to the end surface 11 on the end portions 10 and 10 side of the beams 1A and 1B mounted on the side edges 21a and 21b facing each other and the side surface to be the upper surface 12. Since both ends of the through member 3 are simply inserted into the grooves 13 and 13 formed in the above, the beam 1A; 1B and the column 2 can be easily and easily joined without using a mechanical joint. Will be.
Further, even if the centers of the grooves 13 and 13 of the beams 1A and 1B placed on the side edges 21a and 21b facing each other on the upper end surface 20 of the pillar 2 are slightly deviated, the through member 3 is used. Both ends of the through material 3 are inserted into the respective grooves 13; 13 by shifting in the grooves 13; 13, or both ends of the through material 3 are inserted into the respective grooves 13; 13 by slightly bending the through material 3. It becomes possible. Therefore, as in the prior art disclosed in Non-Patent Document 1, when the position of the reinforcing bar protruding from the wood end surface of the left beam and the position of the reinforcing bar protruding from the wood end surface of the right beam are deviated, the left and right It will be possible to solve the problem that the reinforcing bars protruding from the end surface of the beam cannot be connected by a mechanical joint.
Further, the columns 2 made of reinforced concrete and the beams 1A; 1B formed of a wood-based material can be easily and easily joined.

In addition, although the example which used the through material 3 provided with the disk-shaped fixing portions 31 and 31 at both ends was shown above, the through material may be used in the structure which bent both ends side into the fixing part.
Further, a through material having no fixing portions 31 and 31 at both ends may be used. In this case, the extension length of the groove 13 extending from one end face of the beam to the other end face side may be lengthened, and the fixing length of the through member 3 inserted into the groove 13 may be lengthened.
For example, when two through-materials 3 are installed in the vertical direction, a lower through-material 3 having both ends bent downward to form a fixing portion is used, and both ends as the upper through-material as described above are used. It is preferable to use a through material 3 provided with disk-shaped fixing portions 31 and 31.
Further, although the example in which the through material 3 made of reinforcing bars is used is shown above, a plate-shaped through material may be used.

Further, in the above, an example in which the filler is filled in the gap between the through material 3 inserted in the groove 13 and the peripheral wall of the groove 13 is shown, but the dimension of the groove 13 is the dimension in which the through material 3 is fitted. Is set to fill the gap between the through material 3 fitted in the groove 13 and the peripheral wall of the groove 13 by tapping or pushing the through material 3 into the groove 13 to install the material. The structure may not be filled with the material.

Further, in the above, the groove 13 formed so as to open on the end surface 11 on the end portion 10 side of the beam 1 mounted on the side edge 21 side of the upper end surface 20 of the pillar 2 and the side surface serving as the upper surface 12 is provided. Although the above configuration is illustrated, a groove is formed on the end surface 11 on the end portion 10 side of the beam 1 mounted on the side edge 21 side of the upper end surface 20 of the column 2 and either the left or right side surface to form a beam. The through material 3 may be inserted into the groove from the side of 1 and installed.

Further, in the above, the left and right beam 1A; the end portions 10 and 10 sides of the left and right beams 1A; 1B are placed on one side edge 21a side and the other side edge 21b side facing each other on the upper end surface 20 of the column 2 having a quadrangular cross section. The case where the pillar 2 and the left and right beams 1A and 1B are connected has been described. However, the end 10 side of the beam 1 is installed on each of the four side edge sides of the upper end surface 20 of the pillar 2 having a quadrangular cross section. When joining these columns 2 and the four beams 1, the through members 3 are alternately installed in the grooves 13 and 13 of the opposing beams 1, so that the through members 3 have a cross shape when viewed from above. By placing an unillustrated concrete on the upper side of the upper end surface 20 of the pillar 2, the pillar 2 having a quadrangular cross section and the four side edge sides of the upper end surface 20 of the pillar 2 are placed. It is possible to join the four beams 1, 1 ... Placed on the.

Further, when the end portion 10 side of the beam 1 is placed only on one side edge side of the side edge side facing each other on the upper end surface 20 of the column 2 having a quadrangular cross section, the column 2 and the beam 1 are joined. One end side of the through member 3 is installed in the groove 13 formed on the end portion 10 side of the beam 1, and the other end side of the through member 3 is installed above the upper end surface 20 of the column 2. The pillar 2 and the beam 1 can be joined by placing a concrete (not shown) on the upper side of the upper end surface 20 of the pillar 2 after placing the pillar 2 on the 22.
That is, the method of joining the column and the beam in this case is a groove forming step for forming a groove 13 that opens in the end surface 11 and the side surface on the end portion 10 side of the beam 1, and a side edge 21 on the upper end surface 20 of the column 2. A beam installation step for placing the end 10 side on which the groove 13 of the beam 1 is formed on the side, and a shear reinforcing bar in which the through material 3 is installed in the groove 13 of the beam 1 and above the upper end surface 20 of the column 2. It is a method including a threading material installation step of installing so as to be located on the 22 and a concrete placing step of placing concrete above the upper end surface 20 of the pillar 2 after installing the threading material 3. ..
Further, the joint structure between the column and the beam in this case is the column 2, the beam 1 on which the end 10 side is placed on the side edge 21 side of the upper end surface 20 of the column 2, and the side of the column 2 on the upper end surface 20. A groove 13 formed so as to open on the end surface 11 and the side surface of the end portion 10 side of the beam 1 mounted on the edge 21 side, one end side is inserted into the groove 13 of the beam 1, and the other end side is a pillar. A through member 3 installed so as to be located on a shear reinforcing bar 22 installed above the upper end surface 20 of the column 2 is provided, and concrete is cast above the upper end surface 20 of the column 2 to form the column 2. It is a structure in which the beam 1 and the beam 1 are joined.

In the above, an example in which the through material 3 is placed on the shear reinforcing bar 22 is shown, but the through material 3 is hung from the shear reinforcing bar 22 or is spaced above or below the shear reinforcing bar 22. It may be positioned. That is, in the present invention, the central portion or the other end side of the through member 3 is installed above the upper end surface 20 of the column 2, and concrete is cast above the upper end surface 20 of the column 2, so that the column 2 and the beam 1 are placed. And should be joined.

Further, as the through material 3, for example, as shown in FIG. 3, a through material 3A formed in a rectangular ring shape is used, and the shaft portions 3a and 3b forming long sides of the through material 3A facing each other are mutually formed. It may be installed so as to be positioned vertically via the shaft portions 3c and 3c forming opposite short sides.
Alternatively, an inverted U-shaped groove is formed at the end 10 of the beam 1A when viewed from above, and a U-shaped groove is formed at the end 10 of the beam 1B when viewed from above, and the inside of these grooves is formed. The through material 3A may be installed by inserting both ends of the shaft portions 3a and 3b of the through material 3A and the shaft portions 3c and 3c described above.

Further, although the method of joining the beam 1 formed of the wood-based material to the column 2 of the reinforced concrete structure has been described above, the present invention can also be applied to the case of joining the beam of the reinforced concrete structure to the column of the reinforced concrete structure. Is.

1 beam, 2 columns, 3 lumber, 10 beam end, 11 beam end face,
12 Beam top surface (beam side surface), 13 grooves, 16 anchorage insertion groove, 20 column top surface,
21 column side edges, 22 column shear reinforcements, 23 column main reinforcements, 31 anchorages.

Claims (7)

It is a method of joining a column of a reinforced concrete structure or a column of a precast reinforced concrete structure and a beam formed of a wood-based material.
A groove forming step for forming a groove to be opened on the end surface on the end side of the beam and the side surface to be the upper surface,
A beam installation step for placing the end side where the groove of the beam is formed on the side edge side of the upper end surface of the column, and
A step of installing multiple lumbers up and down so that they are located in the groove of the beam and above the upper end surface of the column, and
A threader fixing step in which the gap between the threader inserted in the groove and the peripheral wall of the groove is filled with an epoxy adhesive as a filler to fix the threader to the beam.
A method of joining a column and a beam, characterized in that a concrete placing step of placing concrete above the upper end surface of the column is provided in order. It is a method of joining a column of a reinforced concrete structure or a column of a precast reinforced concrete structure and a beam formed of a wood-based material.
A groove forming step for forming a groove to be opened on the end surface on the end side of the beam and the side surface to be the upper surface,
The end side on which the groove of one beam is formed is placed on one side edge side facing each other on the upper end surface of the column, and the groove of the other beam is placed on the other side edge side facing each other on the upper end surface of the column. A beam installation step in which the formed end side is placed and the end faces where the grooves of each beam open face each other.
A step of installing multiple lumbers up and down so that they are located in each groove of each beam and above the upper end surface of the column, and
A threader fixing step in which the gap between the threader inserted in the groove and the peripheral wall of the groove is filled with an epoxy adhesive as a filler to fix the threader to the beam.
A method of joining a column and a beam, characterized in that a concrete placing step of placing concrete above the upper end surface of the column is provided in order. In a joint structure between columns of reinforced concrete structure or columns of precast reinforced concrete structure and beams formed of wood-based materials.
Pillars and
A beam on which the end side is placed on the side edge side of the upper end surface of the column,
And a groove formed so as to open into a side surface of the end surface and the upper surface of the end portion side of the placed on a beam on a side edge of the upper end face of the column,
One end is inserted into the groove of the beam, and a plurality of through material disposed vertically as the other end is positioned above the upper end surface of the column,
The through material was fixed to the beam by the epoxy adhesive filled in the gap between the through material inserted in the groove and the peripheral wall of the groove, and concrete was cast above the upper end surface of the column to make the column. A column-beam joint structure characterized by the joint between a beam and a beam. In a joint structure between columns of reinforced concrete structure or columns of precast reinforced concrete structure and beams formed of wood-based materials.
Pillars and
One beam on which the end side is placed on one side edge side facing each other on the upper end surface of the column,
The other beam on which the end side is placed on the other side edge side facing each other on the upper end surface of the column,
A groove formed so as to open on the end surface on the end side and the side surface on the upper surface of each beam placed on each side edge side facing each other on the upper end surface of the column.
It is provided with a plurality of through-materials that are inserted into each groove of each beam on both ends and are installed up and down so that the central portion is located above the upper end surface of the column.
The through material was fixed to the beam by the epoxy adhesive filled in the gap between the through material inserted in the groove and the peripheral wall of the groove, and concrete was cast above the upper end surface of the column to make the column. A column-beam joint structure characterized by the joint between a beam and a beam. As a through material, a through material having a reinforcing bar portion and a fixing portion having a diameter larger than the diameter of the reinforcing bar portion provided at the end of the reinforcing bar portion is used.
In the groove forming step, a groove is formed having a reinforcing bar insertion groove portion into which the reinforcing bar portion is inserted and a fixing portion insertion groove portion in which the groove width is formed wider than the groove width of the reinforcing bar insertion groove portion and the fixing portion is inserted. death,
The column according to claim 1 or 2, wherein in the through material installation step, the reinforcing bar portion of the through material is inserted into the reinforcing bar insertion groove portion, and the fixing portion of the through material is inserted into the fixing portion insertion groove portion. How to join the beam and the beam. The through material includes a reinforcing bar portion and a fixing portion having a diameter larger than the diameter of the reinforcing bar portion provided at the end portion of the reinforcing bar portion, and the groove is a reinforcing bar insertion groove portion into which the reinforcing bar portion is inserted and a groove. The joint between a column and a beam according to claim 3 or 4, wherein the width is formed wider than the groove width of the reinforcing bar insertion groove portion and the fixing portion insertion groove portion into which the fixing portion is inserted is provided. structure. 3. 6. The joint structure of a column and a beam according to 6.

Images