JP3802167B2 - Joining structure for wooden frame and joint for wooden frame - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joining technique of a shaft structure in which a horizontal structural member is surface-bonded to a vertical structural member of a wooden building.
[0002]
[Prior art]
As a joining technique between a longitudinal structure material and a transverse structure material by a conventional construction method, a joining construction method using a joining fitting as shown in FIG. 9 previously created by the present inventor is known (Japanese Patent Laid-Open No. 8-232342). Issue gazette). In this joining technique, first, the mounting surface 42 of the support metal fitting 41 is fitted into the groove 44 recessed in the side surface of the pillar 43 and the lower portion of the support metal fitting 41 is supported by the groove 44. The support metal fitting 41 is fixed to the column 43 with a stop bolt 45 penetrating the shaft. Next, when the beam member 46 is assembled to the support fitting 41 so that the side plate 51 is inserted into the slit groove 47 provided in the support plate 41 from below, the bottom plate 48 receives the lower surface of the end portion of the beam 46 and temporarily fixes it in this state. Is done. Then, the through pin 49 is inserted into the through hole 52, and the beam 46 is surface-bonded to the column 43.
[0003]
However, in this joining technique, when the height of the groove 44 does not match the vertical length of the mounting surface 42 at the stage of pre-processing the column 43, especially when the groove 44 is higher, the bottom plate 48 of the support fitting 41. The beam 46 is joined with the base plate 48 supported by the groove portion 44 or with the bottom plate 48 floated with respect to the groove portion 44. If the former is selected at this time, it is necessary to reopen the through-hole 50 of the beam 46 and the through-hole 50 of the pillar 43 again in the field according to the through-hole 50 of the support metal fitting 1. If the latter is selected, the original supporting force of the groove portion 44 with respect to the end portion of the beam 46 cannot be sufficiently exhibited. Moreover, when attaching the support fitting 41 to the column 43, it is necessary to nut-fasten a plurality of set bolts 45 from the back side of the column 43, and this fastening operation leads to a reduction in work efficiency at the site. There are difficulties.
[0004]
[Problems to be solved by the invention]
The present invention improves the workability of the frame work between the vertical structure material such as a column and the horizontal structure material such as a beam and the trunk by the conventional method, and further improves the joint strength of the wooden frame structure according to the conventional technique. The purpose of this is to provide technology.
[0005]
[Means for Solving the Problems]
In order to achieve such an object, the joining structure of the wooden frame assembly for joining the vertical structural member and the horizontal structural member according to the present invention via the joint fitting is a vertical structure having a first locking portion as the joint fitting. An insertion plate partitioned into a material side insertion portion and a lateral structure material side insertion portion having a second locking portion is connected to each other by a connection plate, and the front end surface of the connection plate is the vertical structure material side insertion portion And a connecting fitting that is positioned on the boundary line between the horizontal structure material side insertion portion and the vertical structure material side insertion portion, and a receiving groove that allows the vertical structure material side insertion portion to be inserted is formed in the vertical groove. A pin member is inserted into a through hole formed orthogonally to the through hole, and a receiving groove is formed in the horizontal structure material so that a lateral structure material side insertion portion can be inserted into the through hole formed orthogonal to the receiving groove. Insert pin member Then, the vertical structure material side insertion portion of the insertion plate is inserted into the receiving groove of the vertical structure material, and the first locking portion is locked to the pin member in a state where the front end surface of the connection plate is in contact with the vertical structure material. In addition, the horizontal structure material side insertion portion of the insertion plate is inserted into the receiving groove of the horizontal structure material, and the second locking portion is locked to the pin member in a state where the lower end surface of the horizontal structure material is supported by the connecting plate. By doing so, the vertical structural member and the horizontal structural member are joined via the joint fitting.
[0006]
In this joining structure, the insertion plate of the joining bracket is inserted into the receiving grooves of the vertical structure member and the horizontal structure member, so that a strong joint extending from the center of the vertical structure member to the inside of the horizontal structure member can be obtained. . Therefore, it is possible to obtain a larger joint strength than a joint structure according to the prior art that mainly uses a support fitting that supports the load of the beam material by the groove. And since the insertion plate is formed in a pair, it becomes a joining structure which exhibits the joining strength which each insertion plate exhibits from the substantially center part of the vertical structure material to the inside of the horizontal structure material in a superimposed manner. Moreover, since the pair of insertion plates are connected by the connection plate, the horizontal structure member is reliably supported by the connection plate when the insertion plate is inserted into the receiving groove of the horizontal structure material. The above is also effective in improving resistance to pulling force acting on the lateral structure material due to an earthquake or other external force. Further, the joining of the vertical structural member and the horizontal structural member can be obtained by locking the locking portion of the joint fitting to the pin member applied to the vertical structural member and the horizontal structural member. Therefore, it is sufficient that the receiving groove to be applied to the vertical structural material in advance is at least slightly larger than the height of the insertion plate, so that high dimensional accuracy is not required for processing, and on-site processing is easy. . Therefore, it does not occur that the supporting force with respect to the lateral structure material cannot be sufficiently exhibited due to the dimensional error of the groove as in the prior art. Furthermore, the locking of the joining bracket to the vertical structure material can be achieved by locking the first locking portion to the pin member applied to the vertical structure material. In addition, it is easy to attach the joining bracket itself, which is effective for improving the work efficiency at the site.
[0007]
For the joining structure as described above, the first locking portion is recessed in the lower side of the protruding portion provided on the vertical side surface of the vertical structure material side insertion portion, and the second locking portion is a horizontal structure. It is preferable to make a recess in the upper side of the material side insertion part.
[0008]
According to this joining structure, the first locking portion is a recess on the lower side of the protruding portion provided on the vertical side surface of the vertical structure material side insertion portion, and the second locking portion is a horizontal structure material side insertion. Since it is formed as a recess on the upper side of the part, the vertical structure material and the horizontal structure material can be joined by a simple operation of simply suspending the pin members applied to the vertical structure material and the horizontal structure material respectively in the recess. Is possible. In such a joining structure, it is more preferable to provide a guide portion at the first locking portion and the second locking portion. Since the guide portion guides the locking of the pin member with respect to each locking portion, the locking can be easily performed.
[0009]
In addition, when the joint structure is applied to a multi-joint structure, that is, a joint structure in which a plurality of horizontal structural members are joined to one vertical structural member from different directions at the same height position, With respect to the joining metal fitting and the joining metal fitting for other lateral structural member, the respective protrusions are formed such that the upper side of the protrusion in the latter is on the lower side with respect to the lower side of the protrusion in the former.
[0010]
According to this joining structure, it is possible to prevent the protrusions for the first locking portions in the joint fitting used for each of the plurality of lateral structural members from interfering with each other. That is, the above-described joint structure using the joint fitting can be effectively used for a plurality of joint structures.
[0011]
The joint structure as described above forms a pin insertion hole in the insertion plate of the joint fitting, and forms an auxiliary through hole perpendicular to the receiving groove for each of the vertical structure material and the horizontal structure material, and More preferably, the inserted auxiliary pin member is inserted into the pin insertion hole of the insertion plate.
[0012]
This joining structure is characterized in that a pin insertion hole is formed in the insertion plate, and the pin member is inserted into the vertical structure member or the horizontal structure member and the pin insertion hole, so that the first and second engagement members are formed. By distributing the load of the horizontal structural member acting on the stopper to the pin member, the bonding strength between the vertical structural member and the horizontal structural member can be stably exhibited for a long period of time. In addition, a high resistance to the pulling force acting on the lateral structure material due to an earthquake or other external force is exhibited.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In the following embodiment, a structure in which a column as a “vertical structure material” and a beam as a “horizontal structure material” are joined via a joint fitting is shown. In the present invention, the “horizontal structure material” is not limited to a beam, but includes a horizontal member such as a girder, a waistline or the like. In addition, members common to the embodiments are denoted by the same reference numerals, and redundant description is omitted.
[0014]
1st Embodiment (FIG. 1, FIG. 2) ; The joining structure of the pillar and beam by 1st Embodiment joins one beam via the joining metal fitting with respect to one pillar. First, the joining metal fitting used for this joining structure will be described. 1 includes a pair of insertion plates 2 and 2 and a connection plate 3 that connects the insertion plates 2 and 2 in a state of being disposed facing each other.
[0015]
Each insertion plate 2, 2 has a column-side insertion portion 4 as a “vertical structure material side insertion portion” inserted into a receiving groove formed in the column, and a “horizontal structure material inserted into a receiving groove formed in the beam” It is divided into a beam side insertion portion 5 as a “side insertion portion”. The column side insertion part 4 is connected by the connection plate 3 in the lower part. Here, the column-side insertion portion 4 and the beam-side insertion portion 5 mean plate portions of the insertion plates 2 and 2 partitioned with the front end surface 6 of the connection plate 3 as a boundary.
[0016]
The column side insertion portion 4 includes a first locking portion 9 provided in a recessed shape on the lower side of the protruding portion 8 provided at the upper portion of the vertical side surface 7, and a lower portion provided at the lower portion of the vertical side surface 7. The side protrusion part 11 and the pin insertion hole 12 for inserting the pin member 22 (refer FIG. 2) mentioned later are formed. The first locking portion 9 is a part that becomes a main joint base of the metal fitting 1 to the column 20, and the first locking portion 9 is inserted into the through hole 23 of the column 20 as shown in FIG. 2. The pin member 22 is suspended and locked from above.
[0017]
The beam-side insertion portion 4 is formed with a second locking portion 15 provided in a concave shape on the upper side 14 and a pin insertion hole 12 for inserting a pin member 22 (see FIG. 5) described later. Has been. The second locking portion 15 is a portion that serves as a main joining base of the metal fitting 1 to the beam 24, and the pin member 22 inserted into the through hole 23 of the beam 24 is fixed to the second locking portion 15. To be locked.
[0018]
In addition, a guide portion 17 is chamfered on each of the first and second locking portions 9 and 15, and the locking of the pin member 22 is guided by the guide portion 17.
[0019]
Next, the construction method of the joining structure using the said joining metal fitting 1 is demonstrated with reference to FIG. First, a pair of receiving grooves 21 for inserting the insertion plate 2 is formed in the pillar 20 indicated by a two-dot chain line. The receiving groove 21 is formed so as to have a predetermined interval corresponding to the interval between the two insertion plates 2 and 2. The receiving groove 21 is formed with a margin slightly longer than the length in the vertical direction of the joint fitting 1 so that the concave portion 9 of the protruding portion 8 can be locked to the pin member 22. A through hole 23 and an auxiliary through hole 25 are formed so as to be substantially orthogonal to the receiving groove 21, and the pin member 22 is inserted into the through hole 23 and fixed.
[0020]
On the other hand, the beam 24 is also formed with a pair of receiving grooves 21 that match the distance between the two insertion plates 2 and 2, and a through hole 23 and an auxiliary through hole 25 are formed substantially orthogonal to the receiving groove 21. The pin member 22 is inserted into the through hole 23 and fixed.
[0021]
Next, the column side insertion portion 4 is inserted into the receiving groove 21 of the column 20 and the first locking portion 9 of the fitting 1 is locked to the pin member 22 from above. At this time, the front end surface 6 of the connecting plate 3 is in contact with the side surface of the column 20, and the joining bracket 1 is temporarily fixed to the column 20. When the pin member 22 is inserted into the two pin insertion holes 12 from the outer surface of the column 20 through the auxiliary through-holes 25 in the temporarily fixed state, the column side insertion portion 4 and the column 20 of the joint fitting 1 are joined.
[0022]
Then, when the beam 24 is dropped from above the joint fitting 1 and the beam side insertion portion 5 is inserted into the receiving groove 21 of the beam 24 and the pin member 22 is locked to the second locking portion 15, Is supported by the connecting plate 3 and the beam 24 is temporarily fixed. When the pin member 22 is inserted into the pin insertion hole 12 through the auxiliary through hole 25 of the beam 24 in the temporarily fixed state, the beam 24 and the beam side insertion portion 5 of the joint fitting 1 are joined. In this way, a junction structure as shown in FIG. 2 is obtained.
[0023]
Second Embodiment (FIGS. 3 to 5) : This embodiment is a form obtained by adding some modifications to the first embodiment, and uses a plurality of the joint fittings 1 shown in FIG. In this position, the two beams are joined so as to face each other. This junction structure is shown in FIGS. As shown in each figure, beams 24a and 24b are joined to the column 20 via joint fittings 1a and 1b. Since the method of joining the beams 24a and 24b is the same as described above, the description thereof will be omitted. In this case, when the joining brackets 1a and 1b are brought into contact with each other, the protrusions 8a and 8b interfere with each other inside the column 20. (See FIG. 3). In order to avoid this interference, in this joint structure, as shown in FIG. 4, receiving grooves 21a and 21b are formed in the column 20 so that the projecting portions 8a and 8b cross each other, and the receiving portions of the beams 24a and 24b are received. The grooves are also formed so as to be continuous with the receiving grooves 21a and 21b on the pillar side. Therefore, the joining fittings 1a and 1b are attached in a state where they are shifted slightly upward or downward from the center in the width direction of the column 20 and the beams 24a and 24b in FIG. At this time, each of the first locking portions 9a and 9b provided as a concave shape is locked in common to the pin member 22 inserted through the through hole opened in the approximate center of the column 20 ( (See FIGS. 3 and 5).
[0024]
In addition, in the above joining structure, it is also possible to set it as the joining structure using the joining metal fitting 1 as shown in FIG. 6 other than the joining metal fitting 1 of FIG. The joint fitting 1 is similar to the joint fitting 1 of FIG. 1 in terms of the function of each member that joins the column 20 and the beam 24 and the method of joining the beam 24 via the joint fitting 1. About the protrusion part in which the lower side protrusion part 11 was formed, it differs from the joining metal fitting 1 of FIG. This point will be further described later.
[0025]
3rd Embodiment (FIG. 6, FIG. 7) ; The junction structure by this embodiment is characterized by joining several beams with respect to one pillar from different directions at the same height position, respectively.
[0026]
In this joining structure, the joining fitting (hereinafter referred to as the first joining fitting) 1a shown in FIG. 1 and the joining fitting (hereinafter referred to as the second joining fitting) 1c shown in FIG. 6 are used. In contrast to the first joining metal fitting 1a, the second joining metal fitting 1c is different in the formation positions of the protruding portion 8c provided on the vertical side surface 7c and the lower protruding portion 11c. In other words, the protrusions 8c and the lower protrusions 11c of the second joint fitting 1c are lower than the protrusions 8a and the lower protrusions 13c of the first attachment fitting 1a. It is formed so that Accordingly, as shown in FIG. 7, even if the first joining metal fitting 1a and the second joining metal fitting 1c are joined so as to be orthogonal to the column 20, the protrusions 8a and 8c or the lower protrusions 11a and 11c are connected. It is possible to obtain a joint structure in which the two do not interfere with each other inside the column 20.
[0027]
Fourth Embodiment (FIG. 8) : The junction structure according to this embodiment is obtained by slightly modifying the junction structure according to the second embodiment or the junction structure according to the third embodiment. In other words, a plurality of first joining fittings 1a and second joining fittings 1c are used, and in addition to the joining structure, the beams are joined from the three directions or the four directions at the same height with respect to the columns. You can also.
[0028]
In the former case (three-way joining structure), the first joining metal fitting 1a or the second joining metal fitting 1c has a joining structure as shown in FIG. 5, and the first joining metal fitting 1a or The second joining fitting 1c is orthogonally joined and further joined. In the latter case (four-way joint structure), as shown in FIG. 8, the beams 24a and 24b are joined to the column 20 via the joints 1a and 1b and then perpendicular to the joints 1c and 1b. , 1d to join the beams 24c, 24d.
[0029]
【The invention's effect】
As described above, in the joining structure according to the present invention, the insertion plate of the joining metal fitting is inserted into the receiving grooves of the longitudinal structure material and the transverse structure material, so that the inside of the transverse structure material starts from approximately the center of the cross section of the longitudinal structure material. It is possible to obtain a high bonding strength over a wide range. Moreover, in the construction, since the first and second locking portions can be locked to the pin members applied to the respective structural materials, the locking of the joining brackets to the vertical structure material and the horizontal structure material can be performed as in the prior art. It is not necessary to use a set bolt, and it is easy to install the joining bracket itself, which is effective for improving work efficiency on site.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a joint fitting used in the present joint structure.
FIG. 2 is a view showing a state in which a beam is joined to a column via the joint fitting of FIG. 1;
FIG. 3 is a view showing a state in which a plurality of beams are joined to a column via the joint fitting of FIG. 1;
4 is a plan view of the joint structure of FIG. 4;
5 is an external perspective view of the joint structure of FIG.
FIG. 6 is an external perspective view of another joint fitting used in the present joint structure.
7 is a view showing a state in which a plurality of beams are joined to a column via the joining fittings of FIGS. 1 and 6. FIG.
FIG. 8 is a diagram illustrating a state in which a plurality of beams are bonded to one column.
FIG. 9 is a view showing a joining structure according to the prior art of this joining structure.
[Explanation of symbols]
1 Joining metal fitting 2 Insertion plate 3 Connection plate 4 Vertical structure material side insertion part (column side insertion part)
5 Horizontal structure material side insertion part (beam side insertion part)
6 Front end surface 7 Vertical side surface 8 Projection portion 9 First locking portion 12 Pin insertion hole 13 Lower side 15 Second locking portion 20 Column 21 Receiving groove 22 Pin member 23 Through hole 24 Beam

Claims (5)

In the joining structure of the wooden frame that joins the vertical structure material and the horizontal structure material via the joint fitting,
As the joining metal fitting, the insertion plate partitioned into the vertical structure material side insertion portion having the first locking portion and the horizontal structure material side insertion portion having the second locking portion is connected to each other by the connection plate, In addition, a joining metal fitting in which the front end surface of the connecting plate is positioned on the boundary line between the vertical structure material side insertion portion and the horizontal structure material side insertion portion is used, and the vertical structure material side insertion portion is provided in the vertical structure material. A receiving groove that can be inserted is formed, and a pin member is inserted into a through-hole that is formed orthogonal to the receiving groove, and a receiving groove that allows a horizontal structure material side insertion portion to be inserted into the horizontal structure material. At the same time, the pin member is inserted into a through hole formed perpendicular to the receiving groove, and the vertical structure material side insertion portion of the insertion plate is inserted into the receiving groove of the vertical structure material, and the front end surface of the connecting plate is vertically structured. The first locking portion is locked to the pin member in a state of being brought into contact with the pin member, and the horizontal structure material side insertion portion of the insertion plate is inserted into the receiving groove of the horizontal structure material, and the connecting plate A wooden frame assembly characterized in that a vertical structural member and a horizontal structural member are joined via a joint fitting by locking the second locking portion to the pin member while supporting the lower end surface. Bonding structure. The first locking portion is recessed on the lower side of the protruding portion provided on the vertical side surface of the vertical structure material side insertion portion, and the second locking portion is the upper side of the horizontal structure material side insertion portion. The joint structure according to claim 1, wherein the joint structure is recessed. The joining structure according to claim 2, wherein a plurality of lateral structural members are joined to one vertical structural member from different directions at the same height position,
For each joint member for one lateral structure member and another joint member for another lateral structure member, each protruding portion is such that the upper side of the projecting portion in the latter is on the lower side with respect to the lower side side of the projecting portion in the former A wooden frame joint structure designed to form A pin insertion hole is formed in the insertion plate of the joint fitting, and an auxiliary through hole perpendicular to the receiving groove is formed for each of the vertical structure material and the horizontal structure material, and the auxiliary pin member inserted into the auxiliary through hole is inserted. The joint structure according to any one of claims 1 to 3, wherein the joint structure is inserted into a pin insertion hole of the plate. A joining bracket for a wooden frame used in the joining structure according to any one of claims 1 to 4,
The insertion plates partitioned into the vertical structure material side insertion portion having the first locking portion and the horizontal structure material side insertion portion having the second locking portion are connected to each other by the connection plate, and the connection plate A joining bracket for a wooden shaft assembly, wherein a front end surface is positioned on a boundary line between the vertical structure material side insertion portion and the horizontal structure material side insertion portion.

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