JPH1018426A - Earthquake resistant reinforcing device in wooden building framework structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce impact load exerted on a framework area of an attic during earthquake time and prevent collapse accompanied by framework deformations. SOLUTION: An inner joint member 2, which comprises a load resistant metallic member, is penetrated in along the inside of a shell at framework connecting positions between a post A, a girder material B and a beam material C respectively. An outer contact joint member 3, which is parallel to the inner joint member 2 and extends over the framework connecting positions, is supported in contact. Together with the inner joint member 2 penetrated into the shelf, a fastening member is penetrated in the post A, the girder material B and the beam materiel C, thereby fixing fasteningly the outer contact joint member 3 with the post A, the girder material B and the beam material C together with the inner joint member 2 respectively and integrating the inner joint member 2 with the outer contact joint member 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to a frame structure of a wooden structure such as a column, a girder member, a beam member, and the like, and more particularly to a seismic retrofitting device of a frame structure having a roof formed by a jointed beam method. .

[0002]

2. Description of the Related Art In recent years, attic frame structures in a wooden building include, for example, a gas-roof construction method. As a seismic reinforcement method for preventing the collapse of a house, for example, measures to reinforce the burning of the attic or bracing have been reported. ing. In particular, at the time of strong earthquake, it is desired to reinforce the attic where the maximum load of the house is applied, and it is considered that the sway at the attic can be prevented to prevent collapse due to deformation. For this reason, conventionally, for example, a tenon is formed at the tip of a girder material or a beam material corresponding to a frame connection part of an attic, and a mortise is penetrated and drilled in a column, so that the mortise of the column and the tenon are formed. After fitting, there is a type in which the strut, the girder material, and the beam material are bolted to each other via a metal member or the like in order to prevent mortise and tenon breakage due to strut deformation during an earthquake.

[0003]

However, in the prior art, the impact load caused by the earthquake and the stress caused by the shaking are applied to the column, and the load on the tenon and the bolted portion far exceeds the allowable range. However, there has been a problem that cracks are generated along the body surface of the column from the bolted portion, or the tenon of the beam material comes off or breaks off, eventually causing the entire house to collapse.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has been made in consideration of the above problem. It is intended to provide an earthquake-resistant reinforcement device.

[0005]

In order to achieve the above-mentioned object, according to the present invention, in a framed structure of a wooden building with columns, girders, and beams, the beams of the columns, the beams and the beams are mutually connected. A middle joint member made of a load-bearing metal member which penetrates and connects and supports the inside of the body at the connection point of the frame, and a resistance joint which is opposed to the middle joint member and supported on the side surface of the body via the connection point of the frame. An outer joint member comprising a loadable member, wherein the outer joint member is tightened and fixed by penetrating a fastening member together with the middle joint member at a frame connection portion, and the middle joint member is connected via the fastening member. And the outer joint member are integrated.

Further, the outer joint member includes a support, a girder,
It may be one that is tightened and fixed so as to cover the frame connection portion between the beam members, and further, the shape of the outer joint member and the middle joint member is at least one of the attic frame connection portions. May be configured so as to correspond to the outer shape.

[0007] A peripheral portion of the middle joint member has a flange portion connected to an outer peripheral portion of the outer joint member. May have an existing insertion slit through which the middle joint member penetrates into the inside of each of the bodies, or a front end of the middle joint member penetrated through the insertion slit may include a support, a girder member, and a beam member. It may have a matching edge.

In the seismic retrofitting device for a wooden building frame structure according to the present invention, a fastening member is attached to a column, a girder member, and a beam member through a middle joint member made of a load-resistant metal member penetrating into the inside of the trunk. And the outer joint member made of a load-bearing metal member is fixedly fastened to the column, the girder member, and the beam member together with the middle joint member. The outer joint member that reinforces the connection outer surface and the middle joint member that reinforces the connection inside the connection point of the column, the girder member, and the beam member are integrated with each other via a fastening member. Load applied to the outer joint member and the middle joint member to increase the strength against withdrawal, breakage, torsion, distortion, etc. as compared with the conventional tenon type joint, and to support the column during an earthquake. Of the beam, beam and beam due to frame deformation.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings.
For example, it is a seismic retrofitting device in an attic frame structure by the Gassho construction method. As shown in FIGS. 1 and 2, the seismic retrofitting device 1 is a frame connection between a column A, a girder member B, and a beam member C. A middle joint member 2 made of a load-bearing metal plate-like member such as a steel material which is penetrated and connected to each other substantially radially along the inside of the body, and a shaft assembly parallel to the middle joint member 2 An outer joint member 3 made of, for example, a lightweight and durable load-bearing member, which is appropriately bent and deformed so as to abut and support along each of the torso sides across the connecting portion, and penetrates into the inside of the torso. The outer joint member 3 is penetrated through the column A, the girder member B, and the beam member C together with the middle joint member 2 thus formed, and is tightened and fixed to the column A, the girder member B, and the beam member C together with the middle joint member 2. Fastening member 4
It is composed of For example, in FIG. 1, the outer joint member 3 includes a plate member having a substantially concave cross section to be brought into contact with the body side of the column A and the beam member B, and a body surface of the beam member B and the beam member C or both beam members C. Is formed in a plate material having a substantially V-shaped cross section to be brought into contact with the plate member.

The outer joint member 3 constituting the seismic retrofitting device 1 has a structure in which the periphery of the connection between the columns A, the girder members B, and the beam members C is mutually connected in a multifaceted manner. By integrating with the hand member 2, it is possible to disperse the impact load at the time of the earthquake, and to reduce the shaking of the earthquake over the entire attic. For example, FIG.
A stud bolt having screw portions at both ends of a shaft portion as shown in FIG. 17 or a nail material or a bolt material having a barbed portion 4A provided at a sharp end portion and a center portion of a shaft portion for preventing removal as shown in FIG. Alternatively, as shown in FIG. 18, the outer joint member 3 can be connected to the shaft assembly by using a U-shaped clamp provided with a return portion 4A for preventing withdrawal at the sharp ends of both legs and the center of the shaft. It is designed so that it does not easily fall out of the place. 3A is a mounting hole of the fastening member 4 drilled in the outer joint member 3, 2A is a through hole for the fastening member 4 drilled in the middle joint member 2, A1, B1, C
Numeral 1 is a through hole for a fastening member 4 formed in the support A, the girder material B, and the beam material C, and these are made to communicate with each other when the shaft is assembled.
The fastening member 4 can be inserted and fixed.

The outer joint member 3 and the middle joint member 2 are formed, for example, as shown in FIG.
It is formed as appropriate so as to substantially correspond to the outer shape of each important point of the joint of the attic frame structure of the attic frame structure. Specifically, for example, the upper part 7A of the true bundle and the joint 5 (FIG. 4,
5, 12, and 13), lower part 7B of the true bundle, 6 and 6 (see FIGS. 6 and 7), and 5 and 6 of the palms.
(See FIGS. 8 and 9), the outer shape at the joint of the attic shaft assembly such as the spinner 8 and the joint palm 5 (see FIGS. 10 and 11), etc. Are formed together with the middle joint member 2 into a pair of jointed metal fittings, a true bundle upper fitting, a true bundle lower fitting, etc., which are sandwiched between the shaft connecting points. 4 and 5, 1
Reference numeral 3 denotes a concave groove for fitting the purlin 14.

As shown in FIGS. 4 and 6, a column A, a beam member B, and a beam member are provided on the peripheral edge of the middle joint member 2 so as to be connected to the outer peripheral edge of the outer joint member 3. By providing a flange portion 9 corresponding to the thickness width of C, or as shown in FIG. 11, a pair of outer joint members 3 to be sandwiched between the center joint member 2 and the shaft assembly in a sandwich shape is formed into a box shape. You can leave it. As shown in FIG. 14, FIG. 15, and FIG. 16, at the connection point of the frame A of the column A, the girder member B, and the beam member C, a split groove shape through which the middle joint member 2 penetrates into the inside of each body. Insert slit 10 into a pair of circular saws 11 (see FIG. 15)
In addition, at the tip of the middle joint member 2 to be fitted into the insertion slit 10,
It has an edge portion 2B so as to engage with the support A, the girder material B, and the beam material C, respectively. At this time, when the insertion slit 10 is drilled with the circular saw 11, an unopened portion (a hatched portion in FIG. 15) remains at substantially the center, but the edge 2B of the middle joint member 2 is forcibly cut. In this case, the engagement of the middle joint member 2 with the column A, the girder member B, and the beam member C is further strengthened.

It is also possible to provide a belt fitting 12 for fastening around the connection point of the shaft assembly together with the outer joint member 3 and fixing it with the fastening member 4 (see FIGS. 6 and 7). Although not shown, a cushioning member made of an elastic body may be interposed between the connection point of the shaft assembly and the outer joint member 3.

Next, a description will be given of an example of the use of the seismic retrofitting device according to the present invention. In the girder material B and the beam material C, a part of the middle joint member 2 is penetrated in advance into the post A or the pre-cut insertion slit 10 of the girder material B and the beam material C. The other part of the middle joint member 2 is penetrated into the support member A, the girder member B, and the beam member C to connect the shaft assembly. Then, the outer joint member 3 is brought into contact with the connection point of the shaft assembly, and a mounting hole 3A of the outer joint member 3 is formed.
, The outer joint member 3 is tightened and fixed in a state where the fastening member 4 and the middle joint member 2 pass through the pillar A, the girder member B, and the beam member C respectively. At this time, the outer joint member 3 is
A girder material B and a beam material C are surrounded around the connection point of the mutual frame in a multi-faceted manner, and are integrated with the middle joint member 2 to form a strong attic frame structure.

[0015]

The present invention is configured as described above.
In particular, a middle joint member made of a load-bearing metal member penetrating and connecting and supporting each other inside the body of the frame connecting portion between the column girder and the beam member, and a shaft connecting portion opposed to the middle joint member through the frame connecting portion. An outer joint member made of a load-bearing member that abuts and supports on the side surface of the torso. And the outer joint member are integrated, so that compared to the conventional tenon type joint structure, the strength against the impact load applied to the attic frame part during an earthquake is increased, resulting in the deformation of the frame. There is an excellent effect that collapse can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a main part of an earthquake-resistant reinforcement device according to the present invention.

FIG. 2 is a sectional view of the seismic retrofitting device according to the present invention.

FIG. 3 is a partially broken perspective view showing a state where the seismic retrofitting device according to the present invention is applied to an attic frame structure.

FIG. 4 is an exploded perspective view of the seismic retrofitting device according to the present invention.

FIG. 5 is a perspective view in which the seismic retrofitting device according to the present invention is applied to a framed portion between an upper part of a true bundle and a joint palm.

FIG. 6 is an exploded perspective view of the seismic retrofitting device according to the present invention.

FIG. 7 is a perspective view in which the seismic retrofitting device according to the present invention is applied to a lower part of a true bundle, a lathe and a shaft assembly.

FIG. 8 is a perspective view in which the seismic retrofitting device according to the present invention is applied to a framed part that is positioned on a joint palm.

FIG. 9 is an exploded perspective view of the seismic retrofitting device according to the present invention.

FIG. 10 is a perspective view in which the seismic retrofitting device according to the present invention is applied to a frame portion of a spinner and a joint.

FIG. 11 is an exploded perspective view of the earthquake-resistant reinforcement device according to the present invention.

FIG. 12 is an exploded perspective view of the seismic retrofitting device according to the present invention.

FIG. 13 is a perspective view in which the seismic retrofitting device according to the present invention is applied to a framed portion between a true bundle and a joint.

FIG. 14 is a plan view illustrating a state where the middle joint member according to the present invention is inserted into the insertion slit.

FIG. 15 shows an inserted state of the middle joint member according to the present invention,
It is a side view explaining insertion slit processing.

FIG. 16 is a perspective view showing an inserted state of the middle joint member according to the present invention.

FIG. 17 is a plan view of a fastening member according to the present invention.

FIG. 18 is a plan view showing another example of the fastening member according to the present invention.

[Explanation of symbols]

 A: Column B: Beam material C: Beam material 1: Earthquake-resistant reinforcement device 2: Middle joint member 2A, A1, B1, C1 ... Through hole 2B ... Edge part 3: Outer joint member 3A ... Mounting hole 4 ... Fastening member 4A … Return part 5… Gap palm 6… Folding 7A… Upper bundle 7B… Lower bundle 8… Rotation 9… Flange part 10… Insertion slit 11… Circular saw 12… Belt bracket 13… Recessed groove 14… Purlin

──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location E04B 2/56 651 E04B 2/56 651A 651D 651L 651S 652 652J 7/02 521 7/02 521Z

Claims (6)

[Claims] Claims: 1. A load-bearing metal for a frame structure of a wooden building with a column, a girder, and a beam, which penetrates and connects and supports each other inside the body of the column connection between the column, girder, and the beam. A middle joint member made of a member, and an outer joint member made of a load-bearing member that is brought into contact with and supported by the side surface of the trunk via a shaft connection portion facing the middle joint member. A wooden building frame, wherein the outer joint member is tightened and fixed by penetrating a fastening member together with the middle joint member, and the middle joint member and the outer joint member are integrated via the fastening member. Seismic reinforcement device in the structure. 2. The wooden building according to claim 1, wherein the outer joint member is tightened and fixed so as to cover a connection point between the columns, the girder members, and the beam members. Seismic reinforcement device for frame structure. 3. The wooden building according to claim 1, wherein at least one of the outer joint member and the middle joint member has a shape corresponding to an outer shape at a connecting point of an attic frame. Seismic reinforcement device for frame structure. 4. The seismic retrofitting apparatus according to claim 3, further comprising a flange connected to an outer peripheral edge of the outer joint member at a peripheral edge of the middle joint member. 5. The wooden structure according to claim 1, wherein said connecting portion of said support, girder and beam members has an existing insertion slit through which said middle joint member penetrates into the inside of each body. Seismic reinforcement device for building frame structures. 6. The wooden building frame according to claim 5, wherein the center joint member penetrated through the insertion slit has an edge portion which engages with each of the column, the girder member and the beam member. Seismic reinforcement device in the structure.