JP2003074118A - Earthquake-resisting reinforcing material - Google Patents

Earthquake-resisting reinforcing material

Info

Publication number
JP2003074118A
JP2003074118A JP2001270856A JP2001270856A JP2003074118A JP 2003074118 A JP2003074118 A JP 2003074118A JP 2001270856 A JP2001270856 A JP 2001270856A JP 2001270856 A JP2001270856 A JP 2001270856A JP 2003074118 A JP2003074118 A JP 2003074118A
Authority
JP
Japan
Prior art keywords
earthquake
reinforcing
base material
elastic base
reinforcing plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2001270856A
Other languages
Japanese (ja)
Other versions
JP4763180B2 (en
Inventor
Toru Iwakawa
徹 岩川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Eisei Center Co Ltd
Original Assignee
Nippon Eisei Center Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Eisei Center Co Ltd filed Critical Nippon Eisei Center Co Ltd
Priority to JP2001270856A priority Critical patent/JP4763180B2/en
Publication of JP2003074118A publication Critical patent/JP2003074118A/en
Application granted granted Critical
Publication of JP4763180B2 publication Critical patent/JP4763180B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To propose an earthquake-resisting reinforcing material being installed to the joining section of a crossed and connected building structural material and reinforcing the building structural material so that a wooden building does not collapse even when strong vibrations are loaded to the wooden building by an earthquake, a typhoon or the like. SOLUTION: In the earthquake-resisting reinforcing material (1) joining mutual crossed column structural material (A-1) and beam and girder structural material (A-2), reinforcing plate materials (12) in which clamping holes (123) are bored at places coinciding with inserting holes (113) are fixed integrally on the internal surface side and external surface side of an elastic base material (11), which is molded in an approximately L shape, to which the inserting holes (113) are bored and which is made of a hard rubber.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、地震、台風等によ
り木造建築物に強度の振動が負荷されても崩壊しないよ
うに、交差して接続されている建築構造材の接合部に取
付けてこれを補強することを目的とする耐震補強材に関
する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed at a joint portion of building structural materials connected in a crossed manner so as not to collapse even if a strong vibration is applied to a wooden building due to an earthquake, a typhoon, or the like. The present invention relates to an earthquake-proof reinforcement material for the purpose of reinforcing.

【0002】[0002]

【従来の技術】従来、木造建築物の構造材の接合部を補
強する方法としては、筋かいや火打梁を設けたり、かす
がい、L型金具を取付けるなど種々の方法が採用されて
いる。しかし、このような方法では、地震、台風等によ
り強度の振動が負荷された場合の補強効果は十分ではな
く、接合部で構造材が簡単に離反したり破損したりし
て、木造建築物がその接合部において破壊したり、酷い
場合には倒壊してしまうこともあった。
2. Description of the Related Art Conventionally, as a method of reinforcing a joint portion of a structural material of a wooden building, various methods such as providing braces, staking beams, glazing, and attaching an L-shaped metal fitting have been adopted. However, with such a method, the reinforcing effect when strong vibration is applied due to an earthquake, typhoon, etc. is not sufficient, and the structural material is easily separated or damaged at the joint, and the wooden structure is It could be destroyed at the joint or, in severe cases, collapsed.

【0003】そこで、地震、台風等による強度の振動に
耐え得るものとして、図5に斜視図で示すような補強金
具51が考案され、使用されている。この補強金具51
は、高張力鋼よりなる板材をL字状に折曲すると共に、
両片部521,522の各々の中間部に外側に折曲した
折曲膨出部521a,522aを各々形成したL形基材
52を設け、このL形基材52の折曲角部523に高張
力鋼よりなる板材を折曲した補強部材53を溶接により
固着し、上記L形基材52の四ヶ所に吸震ゴム等よりな
る緩衝部材54を係着したものである。
Therefore, a reinforcing metal fitting 51 as shown in a perspective view of FIG. 5 has been devised and used as a material capable of withstanding strong vibration due to an earthquake, a typhoon, or the like. This reinforcing metal fitting 51
Is a plate made of high-strength steel bent into an L-shape,
An L-shaped base member 52 having outwardly bent bending bulged parts 521a and 522a is formed at an intermediate portion of each of the two pieces 521 and 522, and a bent corner portion 523 of the L-shaped base member 52 is provided. A reinforcing member 53 formed by bending a plate material made of high-strength steel is fixed by welding, and cushioning members 54 made of a vibration-absorbing rubber or the like are fixed to four positions of the L-shaped base material 52.

【0004】これによれば、L形基材52全体及びその
折曲膨出部521a,522aにより、垂直、水平両方
向の振動がある程度吸収されるが、L形基材52の変形
を確実に復元させるには不十分であり、木造建築物に強
い振動が負荷された場合、建築構造材相互の接合部にお
いて破損する虞れがある。
According to this, although the vibrations in both the vertical and horizontal directions are absorbed to some extent by the entire L-shaped substrate 52 and the bent bulging portions 521a and 522a, the deformation of the L-shaped substrate 52 is reliably restored. This is not sufficient to cause the wooden structure to be subjected to strong vibration, and there is a risk of damage at the joints between the building structural materials.

【0005】[0005]

【発明が解決しようとする課題】上記補強金具51は、
両片部521,522の中間部を外側に折曲して平坦な
折曲膨出部521a,522aを形成してあるので、垂
直方向の振動、鉛直回りの揺動を吸収したり、L形基材
52の変形を復元させる等の作用効果が不十分であると
共に、L形基材52に補強部材53を溶接により固着し
て、L形基材52の折曲角部523と補強部材53の折
曲角部531とを隙間なく密着させてあるために、弾性
変形量が少なくなり、補強部材53の各部に過大な集中
負荷がかかり、締結用のボルトが飛んだり補強部材53
に亀裂が生じたりするという問題があった。
The reinforcing metal fitting 51 is
Since the flat bulging portions 521a and 522a are formed by bending the intermediate portions of the two pieces 521 and 522 to the outside, vibrations in the vertical direction and vertical swing can be absorbed, and the L-shaped The effect of restoring the deformation of the base material 52 is insufficient, and the reinforcing member 53 is fixed to the L-shaped base material 52 by welding, so that the bent corner portion 523 of the L-shaped base material 52 and the reinforcing member 53. Since the bent corners 531 of the reinforcing member 53 are closely contacted with each other without a gap, the amount of elastic deformation is reduced, an excessive concentrated load is applied to each part of the reinforcing member 53, the bolts for fastening fly, and the reinforcing member 53.
There was a problem that cracks were generated in the.

【0006】本発明は、かかる問題点を解決すべく為さ
れたものであって、地震、台風等により、建築構造材の
交差接合部に水平方向や鉛直方向に強い揺動を生じても
これを吸収して、木造建築物の耐震性能を一層向上させ
るようにした耐震補強材を提供することを目的とする。
The present invention has been made to solve the above problems, and even if strong vibrations occur in the horizontal and vertical directions at the cross joints of building structural materials due to earthquakes, typhoons, etc. It is an object of the present invention to provide a seismic strengthening material that absorbs water and further improves the seismic performance of a wooden building.

【0007】[0007]

【課題を解決するための手段】本発明は、上記課題を解
決するためのものであって、略L字状に成形すると共に
挿通孔を穿設してなる硬質ゴム製の弾性基材の内面側と
外面側に、略L字状に成形すると共に前記挿通孔に符合
する位置に締着孔を穿設してなる補強板材を一体に固着
したことを特徴とする耐震補強材である。
SUMMARY OF THE INVENTION The present invention is for solving the above-mentioned problems, and is an inner surface of an elastic base material made of hard rubber which is formed into a substantially L-shape and is provided with an insertion hole. The reinforcing plate member is integrally fixed to the side and the outer surface side and is formed into a substantially L shape, and a fastening hole is formed at a position corresponding to the insertion hole.

【0008】[0008]

【発明の実施の形態】以下、本発明の耐震補強材の好適
な実施形態について、図面に基づき具体的に説明する。
図1は、本発明の耐震補強材を示す斜視図、図2は、図
1のX−X線矢視断面図、図3は、本発明品を示す展開
斜視図、図4は、本発明品の使用状態を示す斜視図であ
る。
BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the seismic reinforcing material of the present invention will be specifically described below with reference to the drawings.
1 is a perspective view showing an earthquake-proof reinforcing material of the present invention, FIG. 2 is a sectional view taken along line XX of FIG. 1, FIG. 3 is a developed perspective view showing the product of the present invention, and FIG. It is a perspective view which shows the use condition of an article.

【0009】本発明は、図示したように、交差する柱構
造材A−1と梁、桁構造材A−2の相互間を接合する耐
震補強材1であって、略L字状に成形すると共に挿通孔
113を穿設してなる硬質ゴム製の弾性基材11の内面
側と外面側に、略L字状に成形すると共に前記挿通孔1
13に符合する位置に締着孔123を穿設してなる補強
板材12を一体に固着したことを特徴とするものであ
る。
As shown in the figure, the present invention is a seismic reinforcement member 1 for joining a crossing column structure material A-1, a beam, and a girder structure material A-2 to each other, which is formed into a substantially L shape. Along with the insertion hole 113, the elastic base material 11 made of hard rubber is formed into a substantially L shape on the inner surface side and the outer surface side, and the insertion hole 1 is formed.
It is characterized in that a reinforcing plate member 12 having a fastening hole 123 formed at a position corresponding to 13 is integrally fixed.

【0010】そして、前記硬質ゴム製の弾性基材11
が、エチレンプロピレンターポリマー(EPDM)から
なるものであることを特徴とし、又、前記弾性基材11
の内面側と外面側に一体に固着される補強板材12が、
高張力鋼からなるものであることを特徴とするものであ
る。
The elastic base material 11 made of hard rubber
Is made of ethylene propylene terpolymer (EPDM), and the elastic substrate 11
The reinforcing plate material 12 integrally fixed to the inner surface side and the outer surface side of the
It is characterized by being made of high-strength steel.

【0011】本発明で、硬質ゴム製の弾性基材11が有
する弾発緩衝効果と、高張力鋼からなる補強板材12が
有する機械的強度との相乗効果により、交差する柱構造
材A−1と梁、桁構造材A−2の相互間の接合が強化さ
れるので、地震や台風等により木造建築物に強度の振動
が負荷されても損壊から免れることができるというもの
である。
In the present invention, due to the synergistic effect of the elastic cushioning effect of the elastic base material 11 made of hard rubber and the mechanical strength of the reinforcing plate material 12 made of high-tensile steel, the pillar structure material A-1 intersects. Since the joint between the beam and the girder structure material A-2 is strengthened, even if a strong vibration is applied to the wooden building due to an earthquake, a typhoon, or the like, it can be prevented from being damaged.

【0012】即ち、本発明品の芯材をなすEPDM等の
硬質ゴムからなる弾性基材11は、弾発力により衝撃を
吸収し復元させるという緩衝効果があると共に、耐老化
性に優れているので、長期に亘り使用しても有効に弾発
緩衝力を維持することができ、又、前記弾性基材11の
内面側と外面側に一体に固着される高張力鋼等からなる
補強板材12は、前記弾性基材11を保護すると共にこ
れに剛性を付与して、柱構造材A−1と梁、桁構造材A
−2との接合を強力にバックアップすることができる。
従って、木造建築物の柱構造材A−1と梁、桁構造材A
−2とが交差する個所の鉛直方向や水平方向に揺動が加
わり、弾性基材11の変形量が大きくなってもこれを吸
収する緩衝効果と弾性復元力の起生により、長期に亘り
木造建築物の損壊を防止することができるものである。
That is, the elastic base material 11 made of hard rubber such as EPDM, which is the core material of the present invention, has a buffering effect of absorbing and restoring impact by elastic force and is excellent in aging resistance. Therefore, the elastic cushioning force can be effectively maintained even when used for a long period of time, and the reinforcing plate member 12 made of high-tensile steel or the like is integrally fixed to the inner surface side and the outer surface side of the elastic base material 11. Protects the elastic base material 11 and imparts rigidity to the elastic base material 11.
It can strongly back up the junction with -2.
Therefore, the pillar structure material A-1 of the wooden building and the beam and girder structure material A
-2 is shaken in the vertical direction or the horizontal direction at the intersection, and even if the amount of deformation of the elastic base material 11 becomes large, the cushioning effect that absorbs this and the occurrence of elastic restoring force cause the wooden structure to be used for a long time. It is possible to prevent damage to the building.

【0013】[0013]

【実施例】本発明で用いる硬質ゴム製の弾性基材11
は、未加硫ゴムに多量の無機質充填材を配合したもの、
或いは、加硫剤によって加硫したゴムであり、特に、E
PDMやこれを加硫したものは、弾発性は勿論のこと、
熱安定性や耐老化性にも優れているので、本発明の耐震
補強材1として好適に使用される。
EXAMPLE An elastic base material 11 made of hard rubber used in the present invention
Is a mixture of unvulcanized rubber with a large amount of inorganic filler,
Alternatively, it is a rubber vulcanized by a vulcanizing agent, and in particular E
PDM and vulcanized PDM are not only elastic,
Since it is also excellent in thermal stability and aging resistance, it is preferably used as the earthquake-proof reinforcing material 1 of the present invention.

【0014】一方、図1、図2に示すように、前記弾性
基材11の内面側に一体に固着される内側補強板材12
1、及び、外面側に一体に固着される外側補強板材12
2は、何れも、抗張力、耐蝕性において格段に優れる高
張力鋼よりなるが、強度をそれ程要求しない場合にあっ
ては、ステンレス鋼であってもよい。
On the other hand, as shown in FIGS. 1 and 2, the inner reinforcing plate member 12 integrally fixed to the inner surface side of the elastic base material 11.
1 and the outer reinforcing plate member 12 integrally fixed to the outer surface side
Each of No. 2 is made of high-tensile steel which is remarkably excellent in tensile strength and corrosion resistance, but stainless steel may be used when strength is not so required.

【0015】本発明の耐震補強材1を製造するには、図
3に示すように、角隅角を90゜に形成した角隅部11
1を有し、且つ、補強板材12の肉厚相当の窪みを形成
した内側板材受部112及び外側板材受部112′と、
この内側板材受部112と外側板材受部112′間に貫
通する挿通孔113を有する弾性基材11の内外面に、
上記挿通孔113に符合する締着孔123を有する内側
補強板材121と外側補強板材122とを熱間融着し、
又は、接着剤を介し接着して、前記弾性基材11と補強
板材12間を一体に固着して製造する。又は、キャステ
ィング成形型内に、予め内側補強板材121と外側補強
板材122とをセッティングしておき、キャスティング
成形法により型内に硬質ゴムを注入して、弾性基材11
と補強板材12とを一体化した後、弾性基材11に挿通
孔113を穿設して、図1に示すような本発明の耐震補
強材1を製造する。
In order to manufacture the seismic reinforcing member 1 of the present invention, as shown in FIG. 3, a corner portion 11 having a corner angle of 90 ° is formed.
1, and an inner plate member receiving portion 112 and an outer plate member receiving portion 112 ′ having a recess corresponding to the thickness of the reinforcing plate member 12,
On the inner and outer surfaces of the elastic base material 11 having the insertion hole 113 penetrating between the inner plate member receiving portion 112 and the outer plate member receiving portion 112 ',
The inner reinforcing plate member 121 and the outer reinforcing plate member 122 having the fastening holes 123 corresponding to the insertion holes 113 are hot-fused,
Alternatively, the elastic base material 11 and the reinforcing plate member 12 are integrally fixed to each other by adhesion with an adhesive agent. Alternatively, the inner reinforcing plate member 121 and the outer reinforcing plate member 122 are set in advance in the casting mold, and the hard rubber is injected into the mold by the casting molding method to form the elastic base material 11.
After the reinforcing plate member 12 and the reinforcing plate member 12 are integrated with each other, the elastic base member 11 is provided with the through hole 113 to manufacture the earthquake-proof reinforcing member 1 of the present invention as shown in FIG.

【0016】なお、前記内側補強板材121の折曲部1
11は折曲角90゜に設定されるが、外側補強板材12
2の折曲角は、弾性基材11の肉厚が角隅部111方向
に向かって肉厚に設定される場合には、必然的に90゜
より鈍角に設定され、又、外側補強板材122に穿設す
る締着孔123は長孔に形成して、ボルト13の締着に
際して融通性をもたせるようにすることが好ましい。
The bent portion 1 of the inner reinforcing plate member 121
11 is set to a bending angle of 90 °, but the outer reinforcing plate material 12
When the thickness of the elastic base material 11 is set to be thicker toward the corners 111, the bending angle of 2 is necessarily set to an obtuse angle than 90 °, and the outer reinforcing plate member 122 It is preferable that the fastening hole 123 to be formed in the hole is formed as a long hole so as to have flexibility when fastening the bolt 13.

【0017】上述の本発明品を、交差する柱構造材A−
1と梁、桁構造材A−2の相互間に固着するには、図4
に示すように、L字状の耐震補強材1の内面側、即ち、
内側補強板材121側を柱構造材A−1と梁、桁構造材
A−2に当接し、外側補強板材122に形成した締着孔
123から、ワッシャーを介してボルト13によって締
着することにより、極めて簡単、且つ、確実に取付ける
ことができる。
The above-mentioned product of the present invention is obtained by crossing a pillar structure material A-
1 and the beam and the girder structure material A-2 to be fixed to each other, as shown in FIG.
As shown in, the inner surface side of the L-shaped seismic reinforcement member 1, that is,
By abutting the inner reinforcing plate member 121 side against the column structure member A-1, the beam, and the girder structure member A-2, and by tightening the bolts 13 through the washers from the tightening holes 123 formed in the outer reinforcing plate member 122. It can be installed very easily and surely.

【0018】本発明により、EPDM等の硬質ゴムから
なる弾性基材は、弾発力により衝撃を吸収し復元させる
という緩衝性と耐老化性に優れている共に、前記弾性基
材に一体に固着される補強板材により弾性基材が保護さ
れ、且つ、弾性基材に剛性が付加されることにより、木
造建築物の柱構造材と梁、桁構造材の交差個所の鉛直方
向や水平方向に衝撃が加わり、弾性基材の変形量が大き
くなっても、これが吸収されて、木造建築物の耐震性能
が維持される。
According to the present invention, the elastic base material made of hard rubber such as EPDM has excellent buffering property of absorbing and restoring impact by elastic force and aging resistance, and is integrally fixed to the elastic base material. Since the elastic base material is protected by the reinforcing plate material and the rigidity is added to the elastic base material, impact is exerted in the vertical direction or the horizontal direction at the intersection of the column structure beam and the beam structure of the wooden building. Even if the amount of deformation of the elastic base material becomes large due to the addition of this, this is absorbed and the seismic performance of the wooden building is maintained.

【0019】即ち、硬質ゴム製の弾性基材が有する弾発
緩衝効果と、補強板材が有する機械的強度との相乗効果
により、交差する柱構造材と梁、桁構造材の相互間の接
合が強化されて、地震や台風等により木造建築物に強度
の振動が負荷されても、損壊から免れることができるも
のである。
That is, due to the synergistic effect of the elastic cushioning effect of the hard rubber elastic base material and the mechanical strength of the reinforcing plate material, the crossing pillar structure material, the beam, and the girder structure material are joined together. It is strengthened so that even if a strong vibration is applied to a wooden building due to an earthquake or a typhoon, it can be prevented from being damaged.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の耐震補強材を示す斜視図である。FIG. 1 is a perspective view showing an earthquake-proof reinforcement material of the present invention.

【図2】図1のX−X線矢視断面図である。FIG. 2 is a sectional view taken along line XX of FIG.

【図3】本発明品を示す展開斜視図である。FIG. 3 is an exploded perspective view showing a product of the present invention.

【図4】本発明品の使用状態を示す斜視図である。FIG. 4 is a perspective view showing a usage state of the product of the present invention.

【図5】従来例を示す斜視図である。FIG. 5 is a perspective view showing a conventional example.

【符号の説明】[Explanation of symbols]

1 耐震補強材 11 弾性基材 111 折曲部 112 内側板材受部 112′ 外側板材受部 113 挿通孔 12 補強板材 121 内側補強板材 122 外側補強板材 123 締着孔 13 ボルト A−1 柱構造材 A−2 梁、桁構造材 1 Seismic reinforcement 11 Elastic base material 111 Bend 112 Inner plate receiving part 112 'Outside plate receiving part 113 insertion hole 12 Reinforcement plate material 121 Inner reinforcing plate 122 Outside reinforcing plate material 123 Fastening hole 13 volt A-1 Pillar structure material A-2 Beam, girder structural material

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 略L字状に成形すると共に挿通孔を穿設
してなる硬質ゴム製の弾性基材の内面側と外面側に、略
L字状に成形すると共に前記挿通孔に符合する位置に締
着孔を穿設してなる補強板材を一体に固着したことを特
徴とする耐震補強材。
1. An inner surface and an outer surface of an elastic base material made of hard rubber, which is formed into a substantially L shape and is provided with an insertion hole, is formed into a substantially L shape and conforms to the insertion hole. An earthquake-proof reinforcing material, characterized in that a reinforcing plate material having a fastening hole formed at a position is integrally fixed.
【請求項2】 前記弾性基材は、EPDM(エチレンプ
ロピレンターポリマー)からなるものであることを特徴
とする請求項1に記載の耐震補強材。
2. The seismic reinforcement material according to claim 1, wherein the elastic base material is made of EPDM (ethylene propylene terpolymer).
【請求項3】 前記補強板材は、高張力鋼からなるもの
であることを特徴とする請求項1又は2に記載の耐震補
強材。
3. The seismic reinforcement material according to claim 1, wherein the reinforcement plate material is made of high-strength steel.
JP2001270856A 2001-09-06 2001-09-06 Seismic reinforcement Expired - Fee Related JP4763180B2 (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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JP4763180B2 JP4763180B2 (en) 2011-08-31

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005264526A (en) * 2004-03-17 2005-09-29 Iwao Yanase Earthquake damper and earthquake-resistant joint using the same
JP2007297819A (en) * 2006-04-28 2007-11-15 Yokohama Rubber Co Ltd:The Earthquake resistant reinforcing body

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06129019A (en) * 1992-10-16 1994-05-10 Saku Takeuchi:Kk Vertical connecting structure of unit houses
JP2001107458A (en) * 1999-10-08 2001-04-17 Daiya Reform Kk Earthquake resistant reinforcing metal fitting for wooden building
JP2001173108A (en) * 1999-10-06 2001-06-26 Takaaki Sugawara Earthquake-resistant reinforcing device
JP2001200590A (en) * 2000-01-20 2001-07-27 Nippon Eisei Center:Kk Earthquake resistant reinforcing fitting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06129019A (en) * 1992-10-16 1994-05-10 Saku Takeuchi:Kk Vertical connecting structure of unit houses
JP2001173108A (en) * 1999-10-06 2001-06-26 Takaaki Sugawara Earthquake-resistant reinforcing device
JP2001107458A (en) * 1999-10-08 2001-04-17 Daiya Reform Kk Earthquake resistant reinforcing metal fitting for wooden building
JP2001200590A (en) * 2000-01-20 2001-07-27 Nippon Eisei Center:Kk Earthquake resistant reinforcing fitting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005264526A (en) * 2004-03-17 2005-09-29 Iwao Yanase Earthquake damper and earthquake-resistant joint using the same
JP4609628B2 (en) * 2004-03-17 2011-01-12 巌 柳瀬 Seismic shock absorber and seismic joint device using the same
JP2007297819A (en) * 2006-04-28 2007-11-15 Yokohama Rubber Co Ltd:The Earthquake resistant reinforcing body

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