JP3315227B2 - How to join structural members - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to a framed structure of a wooden house and a large wooden building having a large cross-sectional structure using a jig for joining between wood, glulam, or between stones, or between wood or glulam and stone or concrete. The present invention relates to a method for joining structural members in a joint or a joint structure of a building structure, such as a joint structure.

[0002]

2. Description of the Related Art In recent years, conventional complicated joints and joint structures have been made extremely simple structures, and the joints and joints or joints for improving the structural strength by using together with an adhesive have been significantly improved in workability. The use of a jig that can significantly shorten the period simplifies the processing technology for joints, joints or joints, and significantly reduces the number of work steps. A joint structure of structural members having a high disaster prevention effect has been developed. Hereinafter, a conventional method of joining structural members and a joining structure thereof will be described. FIG. 6A is a cross-sectional view of a main part at the center of a joining portion showing a state at the time of a butt joint of a beam member using a conventional joining method of a structural member, and FIG. It is principal part sectional drawing of the center of a junction part which shows the state after the butt joint construction of the beam material using the joining method. Reference numeral 10 denotes a metallic joining jig in which a branch pipe for injecting an adhesive is engaged at a substantially central portion in the longitudinal direction of the cylindrical member. Reference numeral 11 denotes an opening at both ends formed in the central longitudinal direction of the joining jig 10. A hollow portion for injecting adhesive, 12 is a branch pipe for injecting adhesive which is screwed and engaged with a substantially central portion of the jig 10 for joining, and 13 is a jig 10 for joining formed in the branch pipe 12.
Of the branch pipe communicating with the hollow portion 11 of the pipe, 20a and 20b are beam members for butt joint, 21 is a beam member for butt joint 2
The joints 0a and 20b are formed in advance by a precut method with a diameter slightly larger than the diameter of the joint jig 10 and a depth such that the center of the joint jig comes to the joint surface of the beams 20a and 20b. The joint hole 22 is a branch pipe mounting groove previously formed by cutting in a precut manner for mounting the branch pipe 12 on the contact surface of the joint hole 21, and 23 is an opening of the branch pipe mounting groove 22.
Reference numeral 4 denotes an adhesive injection gun, and reference numeral 25 denotes an injection from the branch pipe 12, which fills the bonding hole 21 through the hollow portion 11 of the bonding jig 10 and returns to the opening 23 of the branch pipe mounting groove 22 while being visually recognized. The adhesive is filled up to
Reference numeral 6 denotes a stopper made of wood, synthetic resin, or the like that covers the opening 23 of the branch pipe mounting groove 22 after the butt joint and is flush with the beam material surface. First, the beam members 20a and 20 to perform the butt joint
After inserting the joining jig 10 in which the branch pipe 12 is engaged into the joining hole 21 communicating with the contact surface of b and bringing the beam members 20a and 20b into contact with each other, the jig 10 is temporarily fixed with a helmet or temporary bracing. I do. Next, the adhesive injection gun 24 is attached to the opening of the branch pipe 12, and the adhesive 25 is passed through the hollow portion 11 of the joining jig 10.
The filling hole 21 is filled in the opening 23 of the branch pipe mounting groove 22 until the adhesive 25 is visible while filling the joining hole 21.
Fill. As shown in FIG. 6A, the filling of the adhesive 25 is injected from the branch pipe hollow portion 13 as shown by the arrow, passes through the hollow portion 11 of the bonding jig, and the surface of the bonding jig 10 and the bonding hole 21 are formed. To fill the gap with the surrounding wall. The injection of the adhesive is continued, and the adhesive 2 is inserted into the opening 23 of the branch pipe mounting groove 22.
When 5 is visually recognized, the branch pipe 12 is turned halfway to release the engagement with the joining jig 10. Next, as shown in FIG. 6B, the plug 26 is covered with the opening 23 of the branch pipe mounting groove 22 flush.

[0003]

However, in the above-mentioned conventional structure, since the scabs and temporary braces are used for temporarily fixing the structural members, the attraction force between the structural members is weak, and a gap is generated at the joint surface. And the adhesive leaks from the adhesive, weakening the bonding force, and making it impossible to fix at the correct dimensional position. Further, while the adhesive at the joint is hardened, the next construction work cannot be performed, so that the construction is troublesome and the construction period is long. Furthermore, if the structural member moves due to strong winds or the like during the curing period of the adhesive, a predetermined adhesive strength cannot be obtained. For safety reasons, the structural member is strongly attracted and joined and fixed while the adhesive is solidified. A method was desired.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and enables structural members to be joined to each other to be strongly and accurately joined and fixed during curing of the adhesive. It is an object of the present invention to provide a joining method of a structural member having excellent workability and safety, which can be easily attached and detached as necessary, and a joining structure thereof, while reinforcing a portion.

[0005]

To achieve this object, the present invention comprises the following arrangement. The method of joining structural members according to claim 1, wherein the joining jig is inserted into a joining hole formed in a joining surface between the structural members, and the joining jig is inserted through a hollow portion of the joining jig. A joining method between structural members, in which an adhesive is injected into a joining hole to join the structural members, wherein a predetermined portion of a side portion of each of the structural members abuts across a joint surface of the structural member. A step of inserting a steel material into the through holes provided in parallel with each other, and one end at each end of each steel material inserted in the step.
And a screw hole formed at the other end.
A step of clamping the steel material with each other by locking the clamping member the clamping member for clamping the example the steel to each other, the bonding jig was inserted between the structural member secured in said step A step of injecting the adhesive, and a step of solidifying the adhesive injected in the step.
Removing the tension member and the steel material after the
In the process, the tension material and the steel material were removed and exposed
Covering the through-hole with a plug . The method of joining structural members according to claim 2, wherein the joining jig is inserted into a joining hole formed in a joining surface between the structural members, and the joining jig is inserted through a hollow portion of the joining jig. A joining method between structural members, in which an adhesive is injected into a joining hole to join the structural members, wherein one side portion of each of the structural members abutting across a joint surface of the structural member is provided. A step of inserting a steel material into a through-hole provided in a predetermined portion, and a locking hole formed at one end at both ends of the steel material inserted in the step.
One end of a tension member having a screw portion formed at the end is engaged.
The other end of the tension member is stopped and inserted into a through hole provided through a side of the other structural member of each of the structural members, and the steel material and the tension member are inserted by the tension member. Tightening the structural member, and injecting an adhesive into a joining jig inserted between the structural members fixed in the step;
After the adhesive injected in is hardened, the tensioning material and the
Removing the steel material, and in the step, the tension member and the
The through-hole exposed by removing the steel material is covered with a stopper.
And a step of performing the above steps .

Here, the steel material, the tension member and the L-shaped fitting are formed of not only metal but also a composite material of an organic or inorganic fiber such as carbon fiber, boron fiber, glass fiber or metal fiber and a synthetic resin. Or ceramics and composites thereof. Further, as a tensioning material, a blade bolt, a turnbuckle, or the like may be used.
When the steel material and the tension member are locked via the L-shaped bracket, the locking holes for locking the steel material and the tension member provided on the L-shaped bracket are in contact with each end of the steel material and the tension member. Two or more holes may be provided so as not to be prevented, or a long hole may be provided. In addition, L
A structure in which a reinforcing plate is provided on the side of the L-shaped metal fitting to prevent the metal fitting from being bent may be used. When an L-shaped fitting is used, the steel material and the tension member may be in the form of a stud having no head in addition to the bolt having a head at one end.
Further, the screw portion formed on the steel material and the tension member may be a screw having a screw portion over at least one end portion.
The joint hole for inserting the jig for joining and the through hole for inserting the steel material and the tension material can be formed by drilling on site,
Alternatively, it may be formed in advance at a factory by a pre-cut method or the like. In this case, it is preferable that the joint hole and the through hole are formed as far apart as possible in order to prevent damage to the joint hole and the through hole due to stress at the time of tensioning.

[0007]

With this structure, a through hole is formed in the side of each structural member to be joined, a steel material is inserted into the through hole of one structural member, and a steel material or a tension material is inserted into the through hole of the other structural member. By inserting and tightening the steel members or the structural member and the steel member with the tightening member, the structural members can be strongly attracted to each other, and the bonding can be performed safely and reliably. Further, since the joining surfaces of the structural members are completely adhered, it is possible to prevent the adhesive from leaking. Also,
During the curing period of the adhesive, the adhesive is completely attracted and fixed, so that the structural member does not shift and high adhesive strength can be obtained.

[0008]

【Example】

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a main part at the time of butt joint of a beam material using a method of joining structural members according to a first embodiment of the present invention. 20a and 20b are beams,
These are the same as those in the conventional example, and are denoted by the same reference numerals and description thereof is omitted. Reference numeral 1 denotes a bolt-shaped tension member having a bolt plate hole shape at one end and a screw portion 1b at the other end, 2 a bolt-shaped steel material having a screw portion 2a at one end,
Reference numeral 3 denotes a bolt-shaped steel material having an annular head 3a at one end and an annular nut 3c having an annular head at the other end and a screw portion 3b removably screwed thereto, and washers 4a, 4b and 4c; 5a, 5b, 5c are nuts, 6a, 6b are beam members 20
a, 20b through holes for inserting steel materials 2, 3 previously drilled at the time of pre-cutting; 10a, a hollow jig-like joining jig; 11a, a hollow portion of the joining jig 10a;
a is a branch pipe engaged with the center of the joining jig 10a in the longitudinal direction by screwing or the like, 13a is a hollow section of the branch pipe, and 21a is pre-drilled by a precut method for inserting the joining jig 10a. A joining hole having a square cross section, 22a is a branch pipe mounting groove, and 23a is an opening of the branch pipe mounting groove 22a. A method of joining the structural members configured as described above will be described with reference to FIG. In this embodiment, the joining jig 10a in which the branch pipe 12a is engaged is inserted into the joining hole 21a communicating with the contact surfaces of the beams 20a and 20b for performing the butt joint. After bringing the steel material 3 into contact with the steel material 3, the steel material 3 is inserted into the through-hole 6b, the ring head nut 3c is screwed into the screw portion 3b of the steel material 3, and the steel material 3 is fixed to the beam material 20a. Next, the threaded portion 1b side of the tension member 1 is inserted into the annular head 3a and the annular nut 3c of the steel material 3, respectively, and the washer 4 is inserted.
The nuts 5b and 5c are screwed to the screw portion 1b of the tensioning member 1 via the b and 4c to perform temporary fixing. Next, the screw portion 2a of the steel material 2
Side into the locking hole 1a of one of the tension members 1 and the beam member 20b
Through the through hole 6a, and into the engaging hole 1a of the other tension member 1, and the nut 5a is screwed through the washer 4a through the washer 4a.
Screw. Next, the nuts 5b and 5c are tightened while being careful not to displace the joint between the beams 20a and 20b, and the beams 20a and 20b are strongly attracted and joined. Next, an adhesive injection gun (not shown) is attached to the opening of the branch pipe 12a, and the adhesive is applied to the hollow portion 11 of the joining jig 10a.
After filling the bonding hole 21a, the bonding hole 21a is filled until the adhesive is visually recognized in the opening 23 of the branch pipe mounting groove 22 while filling the bonding hole 21a. Opening 23 of branch pipe mounting groove 22
When the adhesive is visually recognized, the branch pipe 12a is turned halfway to release the engagement with the joining jig 10a, and the plug is covered with the opening 23 at the same level. The joining structure of the structural members configured as described above will be described below. In this embodiment,
The joining jig 10a is mounted, and in addition to joining with the adhesive filled in the joining hole via the hollow portion 11a of the joining jig 10a, the joining members 10a are attached to both sides of the beam members 20a and 20b as structural members. The steel material 2 inserted into the through holes 6a and 6b
By strongly tightening the members 3 with the tightening member 1, a more secure and safe joint structure can be obtained. As described above, according to the present embodiment, a through hole is formed in a predetermined portion of each structural member to be joined, a steel material is inserted into the through hole, and a tension material is locked at both ends of the steel material. By tightening the steel members with the tightening member, the adhesive can be injected in a state where the structural members are strongly attracted and securely and securely attached and fixed, so that the adhesive does not leak. Further, since the structural member does not shift while the adhesive is hardened, the bonding force of the adhesive can be increased, and the safety can be improved. In addition, since the work of injecting the adhesive can be performed at a time after the structural members have been previously fixed, the workability can be improved. After the adhesive is hardened, it may be removed to improve the appearance, and the through-hole may be covered with a plug or the like. Also, by leaving it as it is, a stronger and safer bonded state can be maintained. In the present embodiment, the tension member 1 is a steel material in the form of a blade bolt. However, the tension member 1 may have a structure in which an engagement hole at one end of the tension member is annular as shown in FIG. Good. FIG. 2 is a perspective view of a main part at the time of butt joint of a beam showing another application example using the method of joining structural members according to the first embodiment of the present invention. Except that the locking hole 1a 'at one end of the tension member 1' is made annular, the description is omitted because it is the same as that of the first embodiment. (Embodiment 2) FIG. 3 is a perspective view of a main part at the time of jointing a connection between a through pillar and a body using a method for joining structural members according to a second embodiment of the present invention. The difference from the first embodiment is that a steel member for tightening a structural member is inserted into only one of the structural members, and the tightening member is directly inserted into a through hole of the other structural member. 6
c is a through hole for inserting the steel material 2 previously drilled into the side of the body insertion 28, 6d and 6e are through holes for inserting the tensioning material 1 previously drilled into the through column 27, Reference numeral 10b denotes a metal joining jig in which a branch pipe for injecting an adhesive is engaged with one end of a hollow cylindrical member having a round rod shape, and 11b denotes an opening at both ends formed in the central longitudinal direction of the joining jig 10b. The hollow portion for injecting the adhesive, 12b is a branch pipe for injecting the adhesive screwed to one end of the jig for bonding 10b, and 13b is the hollow portion of the jig for bonding 10b formed in the branch pipe 12b. A hollow portion of the branch pipe communicating with 11b, 21b communicates with the connection joint surface 29 of the through column 27 and the trunk 28, and has a diameter slightly larger than the diameter of the joining jig 10b and a central portion in the longitudinal direction of the joining jig 10b. Is a bonding hole formed in advance to a depth such that it comes to the connection bonding surface 29. A method of joining the structural members configured as described above will be described with reference to FIG. First, the tension member 1 is inserted into the through holes 6d, 6e of the through column 27, and the washers 4b, 4
c and the nuts 5b and 5c are temporarily fixed. Next, the steel member 2 is inserted into the through hole 6c of the girder 28 through the locking hole 1a of each tension member 1 and the nut 5a is fastened via the washer 4a. Fixed to. Next, after inserting the joining jig 10b to the bottom of the joining hole 21b, the nuts 5b and 5c screwed to the screw portion 1b of each tensioning member 1 are tightened so that the through pillar 27 and the body insertion 28 are attached. Attract and temporarily fix. Next, an adhesive injection gun (not shown) is attached to the opening of the branch pipe 12b, and the adhesive passes through the hollow portion 11b of the joining jig 10b and fills the joining hole 21b while filling the joining hole 21b. Is filled in the bonding hole 21b until the adhesive is visually recognized in the opening 23a. Adhesive is a jig for joining 1
The gap between the surface of the joining jig 10b and the peripheral wall of the joining hole 21b is filled through the hollow portion 11b of 0b. Further, when the adhesive is continuously injected, the adhesive flows back while filling the gap between the outer surface of the branch pipe 12b and the bonding hole 21b. When the adhesive is visually recognized in the opening 23a of the bonding hole 21b, the branch pipe 1 is removed.
2b is turned halfway to release the engagement with the joining jig 10b. Next, the plug is covered with the opening 23a of the joining hole 21b flush. The joining structure of the structural members configured as described above will be described below. In this embodiment,
The joining jig 10b is mounted, and in addition to joining with the adhesive filled in the joining hole 21b via the hollow portion 11b of the joining jig 10b, both sides of the barrel plug 28 as one structural member are attached. A steel material 2 inserted into a through hole 6c provided in
The tension member 1 is inserted into through holes 6d and 6e penetrating through the side of the through column 27, which is the other structural member to be joined.
By tightening the steel member 2 and the structural members with each other, a firm and safe joint connection structure can be obtained. As described above, according to the present embodiment, a through hole is formed in a predetermined portion of each structural member to be joined, a steel material is inserted into one of the through holes, and a tension material is inserted into the other through hole. By tightening with a nut, the structural member can be strongly attracted and joined with a simple structure of one steel material and two tension members. In the present embodiment, a pair of U-shaped U-shaped members composed of two tension members and one steel member were used. However, when a girder or a beam material for joint connection is large, a plurality of pairs may be used in parallel. Moreover, you may use it in a cross shape. (Embodiment 3) FIG. 4 is a cross-sectional view of a main part of a third embodiment of the present invention at the time of butt joint of a beam member using a method of joining structural members. The difference from the first embodiment is that the steel material and the tension member are locked via an L-shaped fitting. 1 "
Is a stud material in the form of a stud, 7 is an L-shaped fitting for fixing by inserting and fixing through the steel material 2 into the through-holes of the beam members 20a and 20b to lock the tension material 1 ″, and 7a and 7b are steel materials 2, tension material 1 "
Locking holes for locking the holes. A method of joining the structural members configured as described above will be described with reference to FIG. Through hole 6b drilled on the side of beam 20a to be joined
After the steel member 2 locked by the L-shaped bracket 7 is inserted into the head side, the locking hole 7a of the other L-shaped bracket 7 is locked to the other end of the steel member 2 with the beam member 20a interposed therebetween. Then, the nut 5b is fastened via the washer 4a, and the L-shaped bracket 7 is attached and fixed to both sides of the beam member 20a. Similarly, the L-shaped bracket 7 is attached and fixed to both sides of the beam member 20b. Here, the L-shaped fitting may be mounted in advance with the steel material 2 when forming the through holes 6a and 6b. Next, the joining jig 10a on which the branch pipe 12a is mounted is inserted into the joining hole 21a in the same manner as in the first embodiment, and the beam 2
0a and 20b are brought into contact with each other. Next, the beam members 20a and 20b
Each tension member 1 ″ is inserted into the locking hole 7b of each L-shaped fitting fixed to both sides of the bracket, and nuts 5c, 5d are screwed into both ends of the tension member 1 ″ via washers 4c, 4d. To wear. Next, the nuts 5c and 5d are tightened while being careful not to displace the joint between the beam members 20a and 20b, and the beam members 20a and 20b are tightened.
Tension b. Next, an adhesive injection gun is attached to the opening of the branch pipe 12a, and after the adhesive is injected as in the first embodiment, the branch pipe is removed, and the opening 23a of the branch pipe mounting groove 22a is removed.
Cover the spigot flush. As described above, according to the present embodiment, the steel material and the tension member can be made to have a simple structure by locking the steel material and the tension member through the L-shaped bracket, and the structural member is previously inserted through the steel material. An L-shaped fitting can be attached, and workability and workability can be improved. (Embodiment 4) FIG. 5 is a cross-sectional view of a main part at the time of joining a through-column and a body joint using a method of joining structural members according to a fourth embodiment of the present invention. The difference from Example 2 is that
And the tension member 1 ″ are engaged with each other through the L-shaped bracket 7, and the through-column 27 is joined to the girder 28 and the girders 30, 31 by joining.
This is the point that the tension members 1 ″ are used in an intersecting manner. The joining method is the same as in Examples 2 and 3, and the description is omitted. By piercing the through holes so as not to penetrate and tightening the tension members on the intersections, multifaceted joining of the structural members can be performed at the same time.

[0009]

As described above, according to the present invention, the joining jig is inserted into the joining hole formed in the joining surface of each structural member, and the joining jig is joined through the hollow portion. While injecting an adhesive into the hole, a through hole is formed in a side portion of each structural member to be joined, a steel material is inserted into a through hole of one structural member, and a steel material or a steel material is inserted into a through hole of the other structural member. By inserting the tension members and tightening the steel members or between the steel members and the structural members with the tension members, the structural members can be strongly attracted to each other and can be securely and reliably joined. Also, since the attraction force of the structural members is strong, the adhesive can be injected all at once after the framework is first installed, so that the method of joining structural members can significantly improve workability, labor saving and rationalization during construction. It can be realized.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part at the time of a butt joint of a beam material using a method of joining structural members according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part at the time of butt joint of a beam showing another application example using the method of joining structural members according to the first embodiment of the present invention.

FIG. 3 is a perspective view of a main part at the time of joining a connection between a through pillar and a body using a method for joining structural members according to a second embodiment of the present invention.

FIG. 4 is a cross-sectional view of a main part at the time of butt splicing of a beam using a method of joining structural members according to a third embodiment of the present invention.

FIG. 5 is a cross-sectional view of a main part at the time of jointing a connection between a through pillar and a body using the method of joining structural members according to a fourth embodiment of the present invention.

FIG. 6 (a) is a cross-sectional view of a main part at the center of a joint showing a state of butt joint of a beam member using a conventional method of joining structural members. (B) A conventional method of joining structural members was used. Sectional view of the main part of the center of the joint showing the state after the butt joint of the beam material

[Explanation of symbols]

 1, 1 ', 1 "Tensioning material 1a, 1a', 7a, 7b Locking hole 1b, 1b 'Screw portion 2 Steel material 2a Screw portion 3 Steel material 3a Annular head 3b Screw portion 3c Ring head nut 4a, 4b, 4c , 4d Washer 5a, 5b, 5c, 5d Nut 6a, 6b, 6c, 6d, 6e Through hole 7 L-shaped fitting 10, 10a, 10b Jig for joining 11, 11a, 11b Hollow portion 12, 12a, 12b Branch pipe 13, 13a, 13b Branch pipe hollow part 20a, 20b Beam material 21, 21a, 21b Joint hole 22, 22a Branch pipe mounting groove 23, 23a, 23b Opening 24 Adhesive injection gun 25 Adhesive 26 Plug 27 Plug through 27 Body Insert 29 Connection surface 30, 31 digits

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04B 1/58 501 E04B 1/26

Claims (2)

(57) [Claims] 1. A bonding jig is inserted into a bonding hole formed in a bonding surface between structural members, and an adhesive is applied to the bonding hole via a hollow portion of the bonding jig. A method for joining between structural members, which is performed by injecting and joining between the structural members, wherein each of the structural members is provided in parallel with a predetermined portion of a side portion of each of the structural members that abuts on a joint surface of the structural member. A step of inserting a steel material into the through hole, and one end at each end of each steel material inserted in the step.
The step of tensioning the steel together by a threaded portion formed in the engaging hole and the other end portion formed <br/> lock the tensioning member for tensioning said steel between said clamping member And a step of injecting an adhesive into a joining jig inserted between the structural members fixed in the step, and the adhesive injected in the step hardens.
Removing the tension member and the steel material later;
Before the tension member and the steel material are removed and exposed
Covering the through hole with a plug . 2. A bonding jig is inserted into a bonding hole formed in a bonding surface between structural members, and an adhesive is applied to the bonding hole via a hollow portion of the bonding jig. A method of joining structural members, which is performed by injecting and joining the structural members, wherein a through-hole is provided at a predetermined portion on one side of each of the structural members that abuts on a joint surface of the structural member. A step of inserting a steel material into the hole, and forming one end on both ends of the steel material inserted in the above step
Sides of the other structural members have been engaging hole and an end portion of the clamping member and a threaded portion formed at the other end engaging locks the other end portion of the clamping member each structural member Tightening the steel member and the structural member having the tightening material inserted therein through the through hole provided in the through hole, and inserting the structural member between the structural members fixed in the step. Injecting the adhesive into the joined jig, and after the adhesive injected in the step has hardened,
Removing the tension member and the steel material;
The through hole exposed by removing the tension member and the steel material
And covering the hole with a plug .