JP2001182334A - Earthquake-resistant reinforcing device of building for detached house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To renew an existing building to a building having excellent earthquake-resistant strength, using the inside of the building even in the case of the existing building as an object, and to easily conduct renewal work itself. SOLUTION: The earthquake-resistant reinforcing device is composed of columnar members 1, 1 positioned in parallel at an interval mutually, beam- shaped members 2 fixed and joined between these two columnar members 1, 1 and braces 3 made of steel frames or wood, a skeleton frame 4 rigidly joined with columns 6 or the like for the building M for the detached house is self- stood and installed through a foundation M2 apart from the foundation M1 of the building M for the detached house, and viscoelastic dampers 5 as energy absorbing members are incorporated into the braces 3 made of the steel frames or wood in the skeleton frame 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is preferably applied to the improvement of seismic performance of a wooden detached house mainly, and is applicable to various structures such as a lightweight steel frame prefabricated structure and a low-rise reinforced concrete structure other than a wooden structure. The present invention relates to a seismic reinforcement device for a detached house building applied to the reinforcement of seismic resistance of a detached house building.

[0002]

2. Description of the Related Art Conventionally, as a method of improving the seismic performance of a detached house building, conventionally, structural strength members such as columns and beams, which constitute a frame of the building, are provided with braces made of wood or steel frame braces. A method of reinforcing a frame strength or increasing toughness by attaching an earthquake-resistant reinforcing member inside a building such as providing a reinforcing metal at a joint portion of the members is generally adopted.

Further, as disclosed in Japanese Patent Application Laid-Open No. 9-279683, for example, a hook for connecting diagonally a joint between a pillar and a beam constituting a frame in a wooden building, or a diagonal joint between beams. By incorporating an energy absorbing member such as a visco-elastic damper into the connecting fire, it is not limited to simply reinforcing the joints, it also absorbs the energy acting on the joints when an earthquake occurs and the seismic force input to the frame A seismic retrofit structure has been proposed to reduce noise.

[0004]

However, the above-mentioned conventional methods for reinforcing a frame and increasing the toughness not only require a large amount of work but increase the work cost, but also basically resist deformation due to strength and resistance to seismic force. Because it suppresses, if a large deformation force is received due to an unexpected earthquake, the brace and the brace itself will break, and there is a problem that it can no longer withstand the deformation of the building and it is easy to collapse .

[0005] On the other hand, the seismic reinforcement structure of the latter, in which an energy absorbing member is incorporated in a brace or a fire batter, absorbs the energy even if an unexpectedly large seismic force is applied, thereby making the former method possible. In comparison, it is possible to suppress the collapse of the building.

However, in the latter seismic retrofitting structure, as in the former method using a streak or a steel brace, a brace or a fire strike incorporating an energy absorbing member is installed inside the building. When a building is retrofitted with seismic reinforcement, the building cannot be used during the renovation period, and it is necessary to live in another place during the renovation period, which is not economically favorable. However, since it is necessary to perform renovation work by entering the interior of an existing building, there is a problem that the renovation work itself is difficult to perform. In addition, since the installation of a hook or a fire strike is limited to the inside of the building, there are restrictions on the mounting method to reinforce the seismic resistance, and it is difficult to set the optimal mounting method that can exert the most effective seismic resistance There was also a problem.

[0007] The present invention has been made in view of the above-mentioned circumstances, and even if it is intended for an existing building, it is modified to have excellent seismic strength while using the inside of the building. It is an object of the present invention to provide a seismic retrofitting device for a detached house building, which is capable of performing repair work itself very easily.

[0008]

In order to achieve the above object, a seismic retrofitting apparatus for a detached house building according to the present invention is characterized in that at least two columnar members (parallel members) are located at a distance from each other and parallel to each other. 1), (1), a beam-like member (2) fixedly joined between these two columnar members (1), (1) and a reinforcing member (3) constitute a frame frame (4). The framing frame (4) is configured to be able to be installed independently via a foundation (M2) independent of the foundation (M1) of the building for detached house (M), and the axial direction of the reinforcing member (3). Is characterized in that an energy absorbing member (5) is incorporated in a part or the whole thereof.

Further, the seismic retrofitting apparatus for a detached house building according to the second aspect of the present invention is located at one or a plurality of locations on the outer periphery of the detached house building (M) in parallel with an interval therebetween. At least two columnar members (1), (1) and these two columnar members (1), (1)
A frame (4) composed of a beam-like member (2) fixedly joined therebetween and a reinforcing member (3) incorporating an energy absorbing member (5) is attached to a detached house building (M). It is arranged and constructed via a foundation (M2) that is independent of the foundation (M1), and that the frame member (4) and the structural strength member (6) of the detached house building (M) are rigidly connected. It is a feature.

According to the first and second aspects of the present invention, there is provided a skeleton frame having a reinforcing member incorporating an energy absorbing member at one or a plurality of locations on an outer peripheral portion of a detached house building. Independently installed and constructed via independent foundations, renovation works to strengthen the building's seismic resistance from outside the building, such as rigidly connecting this frame to structural strength members of a detached house building No work is required to enter the interior of the building because it can be performed.Therefore, when targeting an existing building, use the interior of the building as it is so that it will not interfere with ordinary life, It can be easily, efficiently and economically renovated into a superior building. In addition, since the energy absorbing member is incorporated in the reinforcing member that is a constituent member of the frame, when a deformation force due to an unexpected large earthquake is received, the large deformation energy is sufficiently absorbed by the energy absorbing member and the building is absorbed. Deformation and further collapse can be suppressed.

Further, since a self-supporting frame frame independent of the building may be installed outside the building, the number of frame frames to be installed and the installation posture can be freely adjusted according to the form and size of the existing building. It is easy to select and this allows you to set the optimal installation method to achieve the most effective seismic resistance.

[0012] In the seismic retrofitting device for a detached house building having the above-mentioned structure, the reinforcing member of the framing frame may be a streak connecting diagonally connecting a joint between a columnar member and a beam-like member. Alternatively, it may be any of a steel brace or a stud member.

[0013] In the seismic retrofitting apparatus for a detached house building having the above-described configuration, the arrangement of the framing frame with respect to the building may be determined according to the form and size of the building itself. As described in Item 4, by arranging in a form that exerts an energy absorbing function against two-dimensional deformation in a plane acting on a detached house building in the event of an earthquake, the number of framework frames can be increased. The building can be renovated into a building having a predetermined seismic strength while reducing workability, economy, and space saving.

[0014] The energy absorbing member incorporated in the reinforcing member of the framing frame may include a fifth aspect.
As described in, viscoelastic damper, elasto-plastic damper,
Any one selected from oil dampers and friction dampers may be used. Among them, visco-elastic dampers that have an effective energy absorption capacity for a wide range of deformation from small deformation to large deformation are most preferable. preferable.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a first embodiment of a detached house building on which an earthquake-resistant reinforcement device according to the present invention is installed, and FIG. 2 is a plan view thereof. In the first embodiment, on the outer periphery of the existing detached house building M, outside one corner,
As a seismic reinforcement device, two frame frames 4, 4 are arranged orthogonal to each other.

Each of the framing frames 4 has two columnar members 1 and 1 made of steel or wood, which are parallel to each other with a space therebetween, and has a horizontal posture between the two columnar members 1 and 1. It is composed of a plurality of beam members 2 made of steel or wood fixedly joined, and a plurality of steel frames or wooden braces 3 which diagonally connect and reinforce the joints between the columnar members 1 and the beam members 2. ing. And these frame frames 4 and 4 are used as the foundation M of the existing detached house building M.
1 and can be constructed independently from the foundation M1 of the existing detached house building M via a foundation M2 which is structurally integrated with the foundation M1.
Numeral 4 is rigidly connected via a connecting member 7 to a column 6 which is a structural strength member of the existing detached house building M.

A viscoelastic damper 5 using a viscoelastic body as an example of an energy absorbing member is incorporated in an axially intermediate portion of a steel frame or a wooden brace 3 as a reinforcing member in each of the frame frames 4. Although not shown, the viscoelastic damper 5 is generally formed by bonding a viscoelastic body between steel plate members or wooden members facing each other in the axial direction.

In the detached house building M of the first embodiment as described above, two frame frames 4 provided with a steel frame or a wooden brace 3 in which a viscoelastic damper 5 is incorporated.
4 is installed independently on the outside of the existing detached house building M via the independently-installable foundations M2 and M2, and these frame frames 4 and 4 are connected to the pillars 6 of the detached house building M. Since the renovation work for the seismic reinforcement of the existing detached house building M can be performed outside the building M such as the rigid connection by the member 7, no work is required to enter the inside of the building M, It is possible to easily, efficiently and economically renovate the building M having excellent seismic strength while using the inside of the building M as it is so as not to hinder ordinary life. Further, since the viscoelastic dampers 5 and 5 are incorporated in the steel frame or the wooden brace 3 which is a reinforcing member of each of the frame frames 4 and 4, when a large deformation force in the horizontal two-dimensional direction is received by an unexpected earthquake, Viscoelastic dampers 5,5
It is possible to suppress the deformation of the building M, and furthermore, the collapse of the building M by absorbing it sufficiently.

In the first embodiment described above, the two frame frames 4 and 4 are arranged orthogonal to each other on the outer periphery of the existing detached house building M and outside one corner. The number and arrangement of the frame frames 4 may be as shown in FIGS. 3 to 9 in addition to the first embodiment. In short, the plane acting on the detached house building M when an earthquake occurs Any form may be used as long as it has a sufficient energy absorbing function against two-dimensional deformation.

FIGS. 10 and 11 are a front view and a schematic plan view showing a second embodiment of a detached house building in which the seismic retrofitting device according to the present invention is installed. In the second embodiment, a single framing frame 4 is arranged in a position parallel to the girder direction at a central position in the girder direction outside the existing detached house building M elongated in the girder direction. Since the structure of the skeleton frame 4 in the second embodiment is the same as that of the skeleton frame 4 in the first embodiment shown in FIGS. 1 and 2, the same reference numerals are given to the corresponding portions, and a detailed description of those structures is given. Omitted. In addition, the energy absorption function at the time of the occurrence of an earthquake is almost the same as that of the first embodiment, and the description thereof is omitted.

In the second embodiment described above, the single frame 4 is arranged at the center of the existing detached house building M in the girder direction parallel to the girder direction. Instead, as shown in FIG. 12, the framing frame 4 may be arranged in a posture orthogonal to the spar row direction, or may be arranged as shown in FIGS.

FIG. 13 is a front view showing a third embodiment of a detached house building in which the seismic retrofitting device according to the present invention is installed. In the third embodiment, as a reinforcing member in a frame 4 arranged in the same manner as in the first embodiment, a stud member 3A erected and connected between vertically adjacent beam members 2 is used. In addition, a viscoelastic damper 5 using a viscoelastic body is incorporated as an example of an energy absorbing member in an intermediate portion of the pillar-shaped member 3A. Other configurations are the same as those of the framing frame 4 according to the first embodiment shown in FIGS. 1 and 2, and accordingly, the corresponding portions are denoted by the same reference numerals and detailed description of those configurations will be omitted. In addition, the energy absorption function at the time of the occurrence of an earthquake is almost the same as that of the first embodiment, and the description thereof is omitted.

FIG. 14 is a front view showing a fourth embodiment of a detached house building in which the seismic retrofitting device according to the present invention is installed. In the fourth embodiment, a frame 4 having the same configuration as that of the first embodiment is installed to a height reaching the second floor of the existing detached house building M, and other configurations are shown in FIGS. Since they are the same as the framing frame 4 in the first embodiment shown in FIG. 1, the corresponding portions are denoted by the same reference numerals and detailed description of those components will be omitted. In addition, the energy absorption function at the time of the occurrence of an earthquake is almost the same as that of the first embodiment, and the description thereof is omitted.

FIGS. 15 and 16 are a front view and a schematic plan view, respectively, showing Embodiment 5 of a detached house building in which the seismic reinforcement device according to the present invention is installed. In the fifth embodiment, two frame frames 4 and 4 having the same configuration as the first embodiment are used.
Are installed at both ends in the girder direction at the lower part of the veranda B, and the other configuration is the same as the frame 4 in the first embodiment shown in FIGS. And a detailed description of those configurations will be omitted. In addition, the energy absorption function at the time of the occurrence of an earthquake is almost the same as that of the first embodiment, and the description thereof is omitted.

FIGS. 17 and 18 are a front view and a schematic plan view, respectively, showing Embodiment 6 of a detached house building provided with the seismic retrofitting device according to the present invention. In the sixth embodiment, two frame frames 4 and 4 having the same configuration as the first embodiment are used.
Are installed at both ends of the lower part of the entrance eave D. Since the other configuration is the same as the frame 4 in the first embodiment shown in FIGS. 1 and 2, the corresponding portions are denoted by the same reference numerals. Therefore, detailed description of those configurations will be omitted. Also,
The energy absorption effect at the time of earthquake occurrence is almost Example 1.
The description is omitted here.

FIGS. 19 and 20 are a front view and a schematic plan view, respectively, showing Embodiment 7 of a detached house building in which the seismic retrofitting device according to the present invention is installed. In the seventh embodiment, a storage space S such as a storeroom is secured vertically outside one side of a prefabricated low-rise residential building M, and a stair C for climbing and descending to the storage space S on the second floor is provided. The three-dimensional frame 4A has a large number of columnar members 1 and beam-like members 2 in the same manner as the frame 4 of the first embodiment. It is composed of a plurality of steel frames or wooden braces 3 including a viscoelastic damper 5 and is rigidly connected to a residential building M via a plurality of connecting members 7. I have.

In the case of the seventh embodiment, a new storage space S is secured outside the residential building M, and at the same time, the deformation of the building M is caused by an energy absorbing effect when a large horizontal deformation force is applied due to the earthquake. And a function of preventing collapse.

FIG. 21 is a front view showing Embodiment 8 of a detached house building in which the seismic retrofitting device according to the present invention is installed. In the eighth embodiment, a prefabricated low-rise residential building M
As shown in FIG. 22, a plurality of steel members or wooden braces 3 including a plurality of columnar members 1, beam members 2, and viscoelastic dampers 5 are provided on one side outside. The framed frame 4A is installed independently and rigidly connected to the column 6 of the low-rise residential building M. Since the energy absorbing action at the time of the occurrence of an earthquake is almost the same as that of the first embodiment, the description is omitted. I do.

In the seventh and eighth embodiments, the arrangement of the three-dimensional frame 4A is as follows.
As shown in FIG. 23, even if installed along two orthogonal sides of the residential building M, as shown in FIG.
It may be installed on both sides in the longitudinal direction of the residential building M, respectively.

Further, in any of the above-mentioned embodiments 1 to 8, a viscoelastic damper 5 having an effective energy absorbing ability for a wide range of deformation from a small deformation to a large deformation is used as an energy absorbing member. As described above, even when a viscoplastic damper, an oil damper, or a friction damper is used, substantially the same earthquake resistance as described above can be obtained.

Further, the present invention can be most effectively applied to the seismic reinforcement of an existing detached house building. However, even if the present invention is applied to the case of reinforcing the seismic resistance of a newly built detached house building, almost the same is applied. It is possible to expect an effect.

[0032]

As described above, according to the first and second aspects of the present invention, a renovation work for reinforcing the building's seismic resistance can be performed from the outside of the building, and the work to enter the inside of the building can be performed. Is not necessary at all, especially when renovating an existing building, there is no hindrance to normal life inside the building, and it is easy and efficient to use a building with excellent seismic strength while using the inside as it is Can be renovated economically and economically. In addition, since the energy-absorbing member is incorporated in the reinforcing member that is a constituent member of the frame, even if an unexpected earthquake receives a large deformation force, the large deformation energy is sufficiently absorbed to deform the building. In addition, collapse can be suppressed.

In addition, since a self-supporting frame frame independent of the building may be installed outside the building, the number of frame frames to be installed and the installation posture can be freely adjusted according to the form and size of the existing building. Therefore, it is possible to always set the optimal installation method regardless of the form and size of the existing building, and it has the effect that it can be modified to exhibit excellent seismic strength .

In particular, by arranging in such a form as to exert an energy absorbing function against a planar two-dimensional deformation acting on a detached house building when an earthquake occurs, the number of frame frames to be installed is reduced as much as possible. Thus, the building can be renovated into a building having a predetermined seismic strength while improving workability, economy, and space saving.

[Brief description of the drawings]

FIG. 1 is a front view showing Embodiment 1 of a detached house building on which an earthquake-resistant reinforcement device according to the present invention is installed.

FIG. 2 is a schematic plan view of the first embodiment.

FIG. 3 is a schematic plan view showing a first example of a different arrangement form of the skeleton frame in the first embodiment.

FIG. 4 is a schematic plan view showing a second example of a different arrangement form of the skeleton frame in the first embodiment.

FIG. 5 is a schematic plan view showing a third example of a different arrangement form of the skeleton frame according to the first embodiment.

FIG. 6 is a schematic plan view showing a fourth example of a different arrangement form of the skeleton frame in the first embodiment.

FIG. 7 is a schematic plan view showing a fifth example of a different arrangement form of the skeleton frame in the first embodiment.

FIG. 8 is a schematic plan view showing a sixth example of a different arrangement form of the skeleton frame in the first embodiment.

FIG. 9 is a schematic plan view showing a seventh example of a different arrangement form of the skeleton frame in the first embodiment.

FIG. 10 is a front view showing a second embodiment of the detached house building in which the earthquake-resistant reinforcement device according to the present invention is installed.

FIG. 11 is a schematic plan view of the second embodiment.

FIG. 12 is a schematic plan view of still another embodiment.

FIG. 13 is a front view showing Embodiment 3 of a detached house building in which the earthquake-resistant reinforcement device according to the present invention is installed.

FIG. 14 is a front view showing a fourth embodiment of a detached house building in which the earthquake-resistant reinforcement device according to the present invention is installed.

FIG. 15 is a front view showing a fifth embodiment of a detached house building in which the earthquake-resistant reinforcement device according to the present invention is installed.

FIG. 16 is a schematic plan view of the fifth embodiment.

FIG. 17 is a front view showing a sixth embodiment of the detached house building in which the earthquake-resistant reinforcement device according to the present invention is installed.

FIG. 18 is a schematic plan view of the sixth embodiment.

FIG. 19 is a front view showing a seventh embodiment of a detached house building in which the earthquake-resistant reinforcement device according to the present invention is installed.

FIG. 20 is a schematic plan view of the seventh embodiment.

FIG. 21 is a front view showing Embodiment 8 of the detached house building in which the earthquake-resistant reinforcement device according to the present invention is installed.

FIG. 22 is a schematic side view of the eighth embodiment.

FIG. 23 is a schematic plan view showing a different example of arrangement of frame frames in the seventh and eighth embodiments.

FIG. 24 is a schematic plan view showing another example of a different arrangement form of the skeleton frame in the seventh and eighth embodiments.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Column-shaped member 2 Beam-shaped member 3 Steel frame or wooden brace (an example of a reinforcing member) 3A Inter columnar member (another example of a reinforcing member) 4, 4A Framed frame 5 Viscoelastic damper (an example of an energy absorbing member) 6 Column (structure) Example of strength member for building) M Building for existing detached house M1 Foundation for building for detached house M2 Independent foundation

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Kazuaki Mitsunari 12-20 Ikeda-cho, Nishinomiya-shi, Hyogo Arai Gumi Co., Ltd. (72) Kenji Higashi 12-20 Ikeda-cho, Nishinomiya-shi, Hyogo Stock (72) Inventor Shoshiro Fuchikawa 1-2-6 Minami Aoyama, Minato-ku, Tokyo Nissan Construction Co., Ltd. (72) Inventor Mutsumi Nakade 1-2-6 Minami-Aoyama, Minato-ku, Tokyo Nissan (72) Inventor Takayuki Wakai 1-17-18 Edobori, Nishi-ku, Osaka-shi, Osaka Toyo Tire & Rubber Co., Ltd. (72) Inventor Hiroaki Ichinose 1-17-18 Edobori, Nishi-ku, Osaka, Osaka Rubber Industry Co., Ltd. (72) Inventor Takeshi Kimura 1-17-18 Edobori, Nishi-ku, Osaka-shi, Osaka F-term (reference) 2E176 BB28

Claims (5)

[Claims] 1. A framing frame is constituted by at least two columnar members located parallel to each other with a space therebetween, a beam-like member fixedly joined between these two columnar members, and a reinforcing member. The framing frame is configured to be able to be installed independently on a foundation independent of the foundation of the detached house building, and that an energy absorbing member is incorporated in part or all of the reinforcing member in the axial direction. Characteristic seismic reinforcement device for detached houses. 2. At least two columnar members which are parallel to each other at one or a plurality of positions on an outer peripheral portion of a detached house building and are fixedly joined to each other between the two columnar members. A frame composed of a beam-shaped member and a reinforcing member incorporating an energy absorbing member is placed and constructed on a foundation independent of the foundation of the detached house building. A seismic reinforcement device for a detached house building, which is rigidly connected to a structural strength member. 3. The seismic reinforcement of a detached house building according to claim 1, wherein the reinforcing member is a bracing or a steel brace or a stud member that obliquely connects a joint between the column member and the beam member. apparatus. 4. The frame according to claim 1, wherein the frame is arranged so as to exhibit an energy absorbing function against a two-dimensional deformation in a plane acting on a detached house building when an earthquake occurs. Seismic retrofitting equipment for detached residential buildings. 5. The seismic reinforcement device for a detached house building according to claim 1, wherein the energy absorbing member is one selected from a viscoelastic damper, an elastic-plastic damper, an oil damper, and a friction damper. .