JP2000328517A - Vibration controller for cable - Google Patents
Vibration controller for cableInfo
- Publication number
- JP2000328517A JP2000328517A JP11136300A JP13630099A JP2000328517A JP 2000328517 A JP2000328517 A JP 2000328517A JP 11136300 A JP11136300 A JP 11136300A JP 13630099 A JP13630099 A JP 13630099A JP 2000328517 A JP2000328517 A JP 2000328517A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- elastic
- vibration
- elastic flat
- elastic body
- 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.)
- Pending
Links
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- Bridges Or Land Bridges (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、斜張橋の塔と桁の
間に張設されるケーブルや吊り橋の桁を支えるケーブル
の振動を減衰させる制振装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damping device for attenuating the vibration of a cable installed between a tower and a girder of a cable-stayed bridge or a cable supporting a girder of a suspension bridge.
【０００２】[0002]
【従来の技術】斜張橋の桁と塔の間に張設されるケーブ
ルは吹き付ける風雨で振動する。そして、この振動数が
ケーブルの固有振動数に一致すると共振現象が発生して
振幅が極めて大きくなり、これにより、ケーブルの両端
の固定部等に与える力学的負荷が大きくなって、該固定
部の破損原因となる。かかる背景の下、上記ケーブルの
振動を減衰させる制振装置を設けてケーブルと桁の連結
部に過剰な負荷が掛からないようにした斜張橋が建設さ
れている。2. Description of the Related Art A cable stretched between a girder and a tower of a cable-stayed bridge vibrates due to blowing wind and rain. When this frequency matches the natural frequency of the cable, a resonance phenomenon occurs and the amplitude becomes extremely large, whereby the mechanical load applied to the fixed portions at both ends of the cable increases, and It may cause damage. Under such a background, a cable stayed bridge has been constructed in which a vibration damping device for attenuating the vibration of the cable is provided to prevent an excessive load from being applied to a connection portion between the cable and the girder.
【０００３】図７は従来のケーブルの制振装置を説明す
る斜張橋の要部の断面図である。上端が図示しない塔に
連結されたケーブル(1) の下端は、アンカー部材(31)で
桁(3) に連結されている。該ケーブル(1) の下端部近傍
は、下端が桁(3) に固定された定着管(32)で包囲されて
いると共に、この定着管(32)内の上端近傍とケーブル
(1) の間には制振用弾性体(2) が充填されている。FIG. 7 is a sectional view of a main part of a cable-stayed bridge for explaining a conventional cable damping device. The lower end of the cable (1) whose upper end is connected to a tower (not shown) is connected to the spar (3) by an anchor member (31). The vicinity of the lower end of the cable (1) is surrounded by a fixing tube (32) whose lower end is fixed to the spar (3).
An elastic body for vibration suppression (2) is filled between (1).
【０００４】この制振用弾性体(2) を定着管(32)内に充
填するときは、該定着管(32)内の上端から若干下方に偏
位した位置とケーブル(1) の間隙を塞ぐように軟質ウレ
タン製のバックアップ材(33)を充填すると共に、定着管
(32)の上端開放部を作業用閉塞蓋(21)で閉塞する。その
後、前記作業用閉塞蓋(21)と上記バックアップ材(33)の
間の円筒状充填室(13)に注入器(23)から液状ゴムを注入
すると共に、これを自然硬化させて制振用弾性体(2) の
層を形成し、その後、上記作業用閉塞蓋(21)を除去す
る。When filling the elastic body for vibration suppression (2) into the fixing tube (32), the gap between the cable (1) and the position slightly deviated from the upper end of the fixing tube (32) is set. Fill the backing material (33) made of soft urethane to close the
The upper end opening of (32) is closed with the work closing lid (21). Thereafter, liquid rubber is injected from the injector (23) into the cylindrical filling chamber (13) between the working closing lid (21) and the backup material (33), and the liquid rubber is naturally hardened for vibration damping. After forming a layer of the elastic body (2), the work closing lid (21) is removed.
【０００５】このものでは、ケーブル(1) が振動する
と、該振動がゴム製の制振用弾性体(2) で吸収されて該
振動の振幅が成長せず、これにより、ケーブル(1) と桁
(3) の連結部に過剰な力学的負担が作用しなくなり、該
連結部の破損の心配が少なくなる。In this apparatus, when the cable (1) vibrates, the vibration is absorbed by the rubber damping elastic body (2), and the amplitude of the vibration does not grow. digit
Excessive mechanical load does not act on the connecting portion of (3), and there is less fear of damage to the connecting portion.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記従
来のものでは、制振用弾性体(2) は定着管(32)とケーブ
ル(1) の間に液状ゴムを注入して硬化させたものである
から、前記ゴム製の制振用弾性体(2) は前記定着管(32)
等に付着した状態で硬化している。従って、制振装置の
補修時に前記制振用弾性体(2) を交換する際にはこれを
ケーブル(1) や定着管(32)の表面から剥離・除去する作
業が行いにくい。又、制振用弾性体(2) を除去した後に
定着管(32)内に新たな液状ゴムを注入したときには、該
液状ゴムが自然硬化するまで待たなければならず、該補
修作業に手間が掛かるという問題があった。However, in the above conventional device, the vibration damping elastic body (2) is formed by injecting liquid rubber between the fixing tube (32) and the cable (1) and curing the rubber. Therefore, the rubber damping elastic body (2) is provided with the fixing tube (32).
It is hardened in a state where it adheres to the like. Therefore, when replacing the vibration damping elastic body (2) at the time of repairing the vibration damping device, it is difficult to remove and remove the elastic body from the surface of the cable (1) or the fixing tube (32). In addition, when new liquid rubber is injected into the fixing tube (32) after removing the vibration damping elastic body (2), it is necessary to wait until the liquid rubber is naturally hardened, and the repair work is troublesome. There was a problem of hanging.
【０００７】本発明はかかる点に鑑みてなされたもの
で、『橋梁の桁(3) とこれを支持する固定部材との間に
張設されるケーブル(1) の振動を減衰させる為の制振装
置であって、前記ケーブル(1) に対して余裕をもって外
嵌すると共に前記桁(3) に固定された定着管(32)と、前
記定着管(32)の上端部内に於いて前記ケーブル(1) を包
囲するように形成された円筒状充填室に充填される制振
用弾性体(2) と、を具備するケーブルの制振装置』に於
いて、補修作業時に制振用弾性体(2) の交換が容易に行
えるようにすることをその課題とする。 〈１項〉SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has been made in consideration of a "system for damping vibration of a cable (1) stretched between a bridge girder (3) and a fixing member for supporting the bridge girder (3)". A fixing tube (32) which is fitted to the cable (1) with a margin and is fixed to the spar (3), and the cable in an upper end portion of the fixing tube (32). (1) a vibration damping elastic body (2) filled in a cylindrical filling chamber formed so as to surround the (1) cable damping device comprising a vibration damping elastic body during repair work. The task is to make it easy to exchange (2). <Item 1>
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
の本発明の技術的手段は、『前記制振用弾性体(2) は、
前記円筒状充填室内に於いて前記ケーブル(1) を包囲す
るように円輪状に配置された状態で軸線方向に重ね合わ
される半輪状の複数の弾性平板と、前記弾性平板群を前
記重ね合わせ状態に一体化する固定具を具備している』
ことである。Means for Solving the Problems The technical means of the present invention for solving the above-mentioned problems is as follows: "The vibration-suppressing elastic body (2) is
In the cylindrical filling chamber, a plurality of semi-circular elastic flat plates which are arranged in a ring shape so as to surround the cable (1) and are superposed in the axial direction, and the elastic flat plate group are superposed. Equipped with a fixture that integrates
That is.
【０００９】次に、上記技術的手段の作用を、制振用弾
性体(2) を取り替える補修作業を説明しながら記載す
る。制振用弾性体(2) を取り替えるときは、ケーブル
(1) の外周の円筒状充填室内で弾性平板を重ね合わせ状
態に一体化している固定具を解除状態にし、これによ
り、各弾性平板の結合状態を解除させる。次に、ケーブ
ル(1) の外周の円筒状充填室内の弾性平板を、定着管(2
3)の上端開放部から一枚ずつ外部に取り出す。これによ
り、制振用弾性体(2) を構成する弾性平板の除去作業が
完了する。Next, the operation of the above technical means will be described with reference to a repair operation for replacing the vibration damping elastic body (2). When replacing the damping elastic body (2),
In the cylindrical filling chamber on the outer periphery of (1), the fixing tool in which the elastic flat plates are integrated in a stacked state is brought into the released state, whereby the connected state of each elastic flat plate is released. Next, the elastic flat plate in the cylindrical filling chamber on the outer periphery of the cable (1) is passed through the fixing tube (2).
Take out one sheet at a time from the open top of 3). Thus, the work of removing the elastic flat plate constituting the elastic body for vibration damping (2) is completed.
【００１０】次に、新たな弾性平板を準備し、二枚の半
輪状の弾性平板でケーブル(1) を包囲するように、これ
ら弾性平板を円輪状に配置しながら、円筒状充填室内で
上方に順次重ねるように充填してゆく。その後、重ね合
わせ状態にある弾性平板群を全体的に固定具で一体化さ
せる。これにより、ケーブル(1) の外周が制振用弾性体
(2) で抱持された状態になり、ケーブル(1) の振動を吸
収できる状態になる。これにより、制振用弾性体(2) を
交換する補修作業が終了する。Next, a new elastic flat plate is prepared, and these elastic flat plates are arranged in a ring shape so as to surround the cable (1) with two half-ring-shaped elastic flat plates. Filling so as to stack sequentially. Thereafter, the elastic flat plate group in the superimposed state is entirely integrated with the fixture. As a result, the outer periphery of the cable (1) is
It is in a state of being held by (2), and is in a state of being able to absorb the vibration of the cable (1). This completes the repair work for replacing the vibration damping elastic body (2).
【００１１】このように、上記技術的手段によれば、円
筒状充填室内に重ね合わせ状態で充填された各弾性平板
を一枚づつ除去し、その後、新たな弾性平板を一枚ずつ
前記円筒状充填室内に充填することができる。As described above, according to the above technical means, each of the elastic flat plates filled in the cylindrical filling chamber in a superposed state is removed one by one, and then a new elastic flat plate is added one by one to the cylindrical shape. The filling chamber can be filled.
【００１２】[0012]
【発明の効果】本発明は次の特有の効果を有する。ケー
ブル(1) と定着管(32)の間の円筒状充填室内に重ね合わ
せ状態で充填された各弾性平板を一枚づつ除去し、その
後、新たな弾性平板を一枚ずつ前記円筒状充填室内に充
填することができるから、定着管(32)やケーブル(1) に
付着しているゴム製の制振用弾性体(2) を前記ケーブル
(1) 等の表面から剥離・除去する必要があった既述従来
のものに比べ、制振用弾性体(2) の交換を伴う補修作業
が容易に行える。 〈２項〉前記１項のケーブルの制振装置において、『前
記円輪状に配置された一対の弾性平板相互の突き合わせ
境界部と、これらに重ね合わされた他の一対の弾性平板
相互の突き合わせ境界部とは、互いに円周方向にずれて
いる』ものでは、ケーブル(1) の振動方向によって制振
性能がばらつく不都合がない。即ち、前記円輪状に配置
される弾性平板の全ての組の突き合わせ境界部が全て同
一平面上に位置している場合は、前記平面と平行な方向
にケーブル(1) が振動する場合と、他の方向に振動する
場合とでは、該ケーブル(1)の振動を吸収する性能が変
化する。前記突き合わせ境界部が連続する平面の方向に
ケーブル(1) が振動する場合には、該ケーブル(1) が前
記突き合わせ境界部に若干没入する傾向になるからであ
る。これに対し、２項のものでは、円輪状に突き合わさ
れる一組の弾性平板の突き合わせ境界部は、隣接する各
組に於いて円周方向にずれているから、前記ケーブル
(1) の振動方向に関わらず、該ケーブル(1) が弾性平板
の突き合わせ境界部に没入する心配がなく、該ケーブル
(1) の振動方向による制振性能のバラツキがなくなる。The present invention has the following specific effects. Each of the elastic flat plates filled in a stacked state in the cylindrical filling chamber between the cable (1) and the fixing tube (32) is removed one by one, and then a new elastic flat plate is added one by one to the cylindrical filling chamber. The rubber damping elastic body (2) attached to the fixing tube (32) and the cable (1) can be filled with the cable.
Repair work involving replacement of the vibration damping elastic body (2) can be performed more easily than the above-mentioned conventional one which had to be separated and removed from the surface of (1). <2> In the cable vibration damping device according to the above item 1, in the cable damping device, "the butting boundary between the pair of elastic flat plates arranged in a ring shape and the butting boundary between the other pair of elastic flat plates superimposed on them. Are shifted from each other in the circumferential direction ”, there is no inconvenience that the vibration damping performance varies depending on the vibration direction of the cable (1). That is, when all butting boundaries of all sets of the elastic flat plates arranged in the ring shape are located on the same plane, the case where the cable (1) vibrates in a direction parallel to the plane, In the case where the cable (1) vibrates, the ability of the cable (1) to absorb vibration changes. If the cable (1) vibrates in the direction of the plane where the butt boundary is continuous, the cable (1) tends to slightly sink into the butt boundary. On the other hand, in the case of the item (2), since the butting boundary portion of a pair of elastic flat plates butted in a ring shape is shifted in the circumferential direction in each of the adjacent sets, the cable
Regardless of the vibration direction of (1), there is no concern that the cable (1) will sink into the butting boundary of the elastic flat plate,
(1) Variations in vibration control performance due to the vibration direction are eliminated.
【００１３】〈３項〉前記１項１又は２項のケーブルの
制振装置に於いて、『前記弾性平板は、弾性ゴムで形成
されている』ものとすることができる。 〈４項〉前記１項から３項のいずれかのケーブルの制振
装置に於いて、『前記制振用弾性体(2) の外周と前記定
着管(32)の内周の間にはモルタルが充填されている』も
のでは、制振用弾性体(2) を構成する材料の物性だけで
ケーブル(1) の振動吸収特性が決定される。従って、制
振用弾性体(2) の外周と定着管(32)の内周の間に弾性体
を充填する後述の５項のものに比べて、ケーブル(1) の
振動吸収特性の設定を容易に行うことができる。尚、前
記「モルタル」としては、樹脂が混入されている「樹脂
モルタル」を採用することもできる。 〈５項〉前記１項から３項の何れかのケーブル制振装置
に於いて、『前記制振用弾性体(2) の外周と前記定着管
(32)の内周の間には、前記制振用弾性体(2) と異なる材
質の補助弾性体が充填されている』ものでは、制振用弾
性体(2) 及びこれと異なる材質の補助弾性体の両者の振
動吸収特性の複合した振動吸収特性が得られる。即ち、
制振用弾性体(2) で吸収され易い振動数の振動と、制振
用弾性体(2) の外周に充填された補助弾性体で吸収され
易い振動数の振動の合成振動を効果的に減衰させること
ができる。<Item 3> In the cable vibration damping device according to item 1 or 2, the "elastic flat plate is made of elastic rubber". <Item 4> In the cable damping device according to any one of the items 1 to 3, it is preferable that "the mortar is provided between the outer periphery of the elastic body for vibration suppression (2) and the inner periphery of the fixing tube (32). In this case, the vibration absorbing characteristics of the cable (1) are determined only by the physical properties of the material constituting the vibration damping elastic body (2). Therefore, the vibration absorption characteristics of the cable (1) can be set to a lower value than in the item (5) in which the elastic body is filled between the outer periphery of the vibration damping elastic body (2) and the inner periphery of the fixing tube (32). It can be done easily. As the “mortar”, a “resin mortar” in which a resin is mixed may be used. <5> The cable damping device according to any one of the above items 1 to 3, wherein "the outer periphery of the vibration damping elastic body (2) and the fixing tube"
(32), an auxiliary elastic body made of a material different from that of the vibration-damping elastic body (2) is filled in between the inner circumferences of the vibration-damping elastic body (2) and the material of a different material. Vibration absorption characteristics in which the vibration absorption characteristics of both auxiliary elastic bodies are combined can be obtained. That is,
Effectively combines the vibration with the frequency that is easily absorbed by the vibration-damping elastic body (2) and the vibration with the frequency that is easily absorbed by the auxiliary elastic body that fills the outer periphery of the vibration-damping elastic body (2). Can be attenuated.
【００１４】[0014]
【発明の実施の形態】次に、上記発明の実施の形態を説
明する。図１は、斜張橋に於けるケーブル(1) の張設状
態を示す斜視図である。上端が塔(4) に連結されたケー
ブル(1) の下端は桁(3) に固定された定着管(32)内に引
き込まれていると共に、該定着管(32)の上端開放部はゴ
ムカバー(35)で覆われており、定着管(32)の上端とケー
ブル(1) の間には、図２のように制振用弾性体(2) が配
設されている。図３は上記制振用弾性体(2) の分解斜視
図であり、該制振用弾性体(2) は、互いに積層される弾
性樹脂製の弾性平板(61)(61)と、該弾性平板(61)(61)を
積層状態に挟圧保持する金属端板(51)(52)(53)(54)を具
備している。Next, embodiments of the present invention will be described. FIG. 1 is a perspective view showing a state in which a cable (1) is stretched in a cable-stayed bridge. The lower end of the cable (1) whose upper end is connected to the tower (4) is drawn into the fixing tube (32) fixed to the girder (3), and the upper end opening of the fixing tube (32) is made of rubber. As shown in FIG. 2, an elastic body for vibration suppression (2) is provided between the upper end of the fixing tube (32) and the cable (1). FIG. 3 is an exploded perspective view of the vibration-damping elastic body (2). The vibration-damping elastic body (2) is composed of elastic flat plates (61) and (61) made of an elastic resin laminated on each other. Metal end plates (51), (52), (53) and (54) for holding the flat plates (61) and (61) in a stacked state are provided.
【００１５】金属端板(51)(52)(53)(54)は夫々同一構造
を有している。金属端板(51)は、中心角が１８０度より
若干小さい略半輪状に形成されており、その内周縁(S)
はケーブル(1) の直径より大きな直径の円弧状に形成さ
れている。又、金属端板(51)の外周縁(A) は、上記内周
縁(S) と共通の中心を有する円弧状に形成されており、
該金属端板(51)には、ボルト挿通孔(56)(56)が周方向に
６０度間隔で形成されている。具体的には、金属端板(5
1)の周方向の中央部に一個のボルト挿通孔(56)が形成さ
れていると共に、該中央部のボルト挿通孔(56)を中心と
して周方向に６０度づつ前後に振り分けられた位置に他
のボルト挿通孔(56)(56)が形成されている。The metal end plates (51), (52), (53) and (54) have the same structure. The metal end plate (51) is formed in a substantially semicircular shape having a center angle slightly smaller than 180 degrees, and its inner peripheral edge (S)
Is formed in an arc shape having a diameter larger than the diameter of the cable (1). The outer peripheral edge (A) of the metal end plate (51) is formed in an arc shape having a common center with the inner peripheral edge (S),
Bolt insertion holes (56) (56) are formed in the metal end plate (51) at intervals of 60 degrees in the circumferential direction. Specifically, metal end plates (5
One bolt insertion hole (56) is formed at the center in the circumferential direction of 1), and at a position divided forward and backward by 60 degrees in the circumferential direction around the bolt insertion hole (56) at the center. Other bolt insertion holes (56) (56) are formed.
【００１６】金属端板(51)(51)の間に積層される弾性平
板(61)(61)は、全て同一構造を有しており、該弾性平板
(61)は弾性樹脂製の板材からプレス抜きによって製作さ
れている。弾性平板(61)は、中心角が１８０度を有する
半輪状に形成されており、その内周縁(63)はケーブル
(1) の直径に一致する直径の半円状に形成されている。
又、弾性平板(61)の外周縁(65)は、上記内周縁(63)と共
通の中心を有する半円状に形成されていると共に、この
外周縁(65)は、既述した金属端板(51)の外周縁(A) より
大きな半径を有している。従って、弾性平板(61)は上記
金属端板(51)より一回り大きな輪郭形状を有している。
又、上記弾性平板(61)には、ボルト挿通孔(67)(67)が周
方向に６０度間隔で形成されている。具体的には、弾性
平板(61)の周方向の中央部に一個のボルト挿通孔(67)が
形成されていると共に、該中央部のボルト挿通孔(67)を
中心として周方向に６０度づつ前後に振り分けられた位
置に他のボルト挿通孔(67)(67)が形成されている。The elastic flat plates (61) and (61) laminated between the metal end plates (51) and (51) all have the same structure.
(61) is manufactured by pressing from an elastic resin plate material. The elastic flat plate (61) is formed in a semicircular shape having a central angle of 180 degrees, and its inner peripheral edge (63) is a cable.
It is formed in a semicircular shape having a diameter corresponding to the diameter of (1).
Further, the outer peripheral edge (65) of the elastic flat plate (61) is formed in a semicircular shape having a common center with the inner peripheral edge (63), and the outer peripheral edge (65) is formed of the metal edge described above. It has a larger radius than the outer peripheral edge (A) of the plate (51). Therefore, the elastic flat plate (61) has a shape slightly larger than the metal end plate (51).
The elastic flat plate (61) has bolt insertion holes (67) (67) formed at intervals of 60 degrees in the circumferential direction. Specifically, a single bolt insertion hole (67) is formed at the center in the circumferential direction of the elastic flat plate (61), and the bolt insertion hole (67) at the center is 60 degrees in the circumferential direction. The other bolt insertion holes (67) and (67) are formed at the positions that are distributed one after another.
【００１７】そして、弾性平板(61)と金属端板(51)の曲
率中心を一致させた状態でこれらを重ね合わせた際に
は、これら弾性平板(61)のボルト挿通孔(67)(67)と金属
端板(51)のボルト挿通孔(56)(56)が一致するようになっ
ている。次に、上記制振用弾性体(2) を定着管(32)とケ
ーブル(1) の間に配設する作業を説明する。図３に示す
ように、先ず、円筒状の定着管(32)内の上端近傍と円形
断面を有するケーブル(1) の外周面の間に軟質ウレタン
製のバックアップ材(33)を充填する。When the elastic flat plate (61) and the metal end plate (51) are superimposed on each other with their centers of curvature matched, the bolt insertion holes (67), (67) of these elastic flat plates (61) are formed. ) And the bolt insertion holes (56) (56) of the metal end plate (51) are aligned with each other. Next, the operation of disposing the elastic body for vibration suppression (2) between the fixing tube (32) and the cable (1) will be described. As shown in FIG. 3, first, a soft urethane backup material (33) is filled between the vicinity of the upper end in the cylindrical fixing tube (32) and the outer peripheral surface of the cable (1) having a circular cross section.
【００１８】次に、一対の金属端板(51)(52)の片面側か
らボルト挿通孔(56)(56)に結合ボルト(45)(45)を挿通し
た状態にし、これを、定着管(32)内に於いてバックアッ
プ材(33)の上面に載置する。このとき、結合ボルト(45)
(45)がケーブル(1) に沿って上方に突出する姿勢にセッ
トすると共に、金属端板(51)(52)がケーブル(1) を包囲
するようにこれら金属端板(51)(52)を配置する。又、金
属端板(51)(52)の内周縁(S) (S) とケーブル(1) の外周
の間に所定の間隔が形成される状態にする。次に、金属
端板(51)(52)のボルト挿通孔(56)(56)から突出する結合
ボルト(45)(45)に、一対の弾性平板(61)(61)の各ボルト
挿通孔(67)(67)を外嵌すると共に、これら一対の弾性平
板(61)(61)の内周縁(63)(63)がケーブル(1) の外周全域
に沿う状態にする。すると、弾性平板(61)(61)はケーブ
ル(1) を包囲する円輪状に突き合わされた状態に配置さ
れる。そして、上記のように円輪状に配置された弾性平
板(61)(61)を金属端板(51)(52)上に重ね合わせる。次
に、他の一対の弾性平板(61)(61)のボルト挿通孔(67)(6
7)を上記と同様に結合ボルト(45)(45)に外嵌し、該弾性
平板(61)(61)を先に組み込んだ上記一対の弾性平板(61)
(61)の上面に重ね合わせる。このとき、円輪状に突き合
わされた一対の弾性平板(61)(61)の突き合わせ境界部
と、この上に重ね合わされる一対の弾性平板(61)(61)の
突き合わせ境界部が周方向に６０度ピッチで順次ずれる
ように、これら弾性平板(61)(61)をケーブル(1) の軸線
方向に順次積層してゆく。Next, the connecting bolts (45) and (45) are inserted into the bolt insertion holes (56) and (56) from one side of the pair of metal end plates (51) and (52). It is placed on the upper surface of the backup material (33) in (32). At this time, connecting bolt (45)
(45) is set so that it protrudes upward along the cable (1), and the metal end plates (51) (52) surround the cable (1) so that the metal end plates (51) and (52) surround the cable (1). Place. Also, a state is provided in which a predetermined space is formed between the inner peripheral edges (S) (S) of the metal end plates (51) (52) and the outer periphery of the cable (1). Next, each of the bolt insertion holes of the pair of elastic flat plates (61) and (61) is inserted into coupling bolts (45) and (45) projecting from the bolt insertion holes (56) and (56) of the metal end plates (51) and (52). (67) (67) is fitted to the outside, and the inner peripheral edges (63) (63) of the pair of elastic flat plates (61) (61) are arranged along the entire outer peripheral area of the cable (1). Then, the elastic flat plates (61) and (61) are arranged in a state of being abutted in a ring shape surrounding the cable (1). Then, the elastic flat plates (61) and (61) arranged in a ring shape as described above are superimposed on the metal end plates (51) and (52). Next, the bolt insertion holes (67) (6) of the other pair of elastic flat plates (61) (61)
7) is externally fitted to the coupling bolts (45) and (45) in the same manner as described above, and the pair of elastic flat plates (61) in which the elastic flat plates (61) and (61) are previously assembled.
Lay it on the top surface of (61). At this time, the butting boundary between the pair of elastic flat plates (61) and (61) abutted in a ring shape and the butting boundary between the pair of elastic flat plates (61) and (61) superimposed thereon are 60 These elastic flat plates (61) and (61) are sequentially laminated in the axial direction of the cable (1) so as to be sequentially displaced at a degree pitch.
【００１９】最後に、弾性平板(61)(61)のボルト挿通孔
(67)(67)から突出する結合ボルト(45)(45)に金属製端板
(53)(54)のボルト挿通孔(56)(56)を外嵌し、該ボルト挿
通孔(56)(56)から突出する結合ボルト(45)(45)に締付ナ
ット(26)(26)を螺合して締め付ける。すると、図３に示
すように、ケーブル(1) の外周を包囲する円筒状に積層
された弾性平板(61)(61)が金属端板(51)(52)(53)(54)で
挟圧一体化された制振用弾性体(2) が、定着管(32)内に
収容された状態になる。従って、本実施の形態では、金
属端板(51)(52)(53)(54)，結合ボルト(45)(45)及びこれ
に螺合する締付ナット(26)(26)の集合が既述した固定具
に対応している。Finally, bolt insertion holes of the elastic flat plates (61), (61)
(67) Use metal end plates for connecting bolts (45) (45) protruding from (67).
(53) The bolt insertion holes (56) and (56) of the (54) are externally fitted, and the fastening bolts (45) and (45) projecting from the bolt insertion holes (56) and (56) are tightened with the fastening nuts (26) and Screw 26) and tighten. Then, as shown in FIG. 3, the elastic flat plates (61) (61) laminated in a cylindrical shape surrounding the outer periphery of the cable (1) are sandwiched between metal end plates (51) (52) (53) (54). The pressure-resilient vibration damping elastic body (2) is housed in the fixing tube (32). Therefore, in the present embodiment, a set of the metal end plates (51) (52) (53) (54), the coupling bolts (45) (45), and the tightening nuts (26) (26) screwed thereto are formed. It corresponds to the fixtures already described.
【００２０】次に、図４の想像線で示すように定着管(3
2)の上端とケーブル(1) の間を作業用閉塞蓋(21)で閉塞
すると共に、該作業用閉塞蓋(21)，バックアップ材(3
3)，定着管(32)及び制振用弾性体(2) で包囲された円筒
状空間にホース(15)からモルタル又はモルタルと樹脂が
混練された樹脂モルタルを充填してこれを硬化させる。
その後、作業用閉塞蓋(21)を取り外すと、図４，図５に
示すように、弾性平板(61)(61)や金属製端板(53)(54)等
から成る制振用弾性体(2) でケーブル(1) の外周が包囲
され、且つその外周と定着管(32)の間に硬化したモルタ
ル層(17)が充填された状態になる。Next, as shown by the imaginary line in FIG.
The space between the upper end of 2) and the cable (1) is closed with a work closing cover (21), and the work closing cover (21) and the backup material (3) are closed.
3) A mortar or a resin mortar obtained by mixing mortar and resin is filled from a hose (15) into a cylindrical space surrounded by the fixing tube (32) and the elastic body for vibration damping (2), and the mortar is cured.
After that, when the work closing lid (21) is removed, as shown in FIGS. 4 and 5, the vibration damping elastic body composed of the elastic flat plates (61) (61) and the metal end plates (53) (54) is provided. (2) surrounds the outer periphery of the cable (1) and fills the hardened mortar layer (17) between the outer periphery and the fixing tube (32).
【００２１】その後、定着管(32)の上端部を図１に示す
の如きゴムカバー(35)で覆って該ゴムカバー(35)の両端
部を締め付けバンド(18)(19)で定着管(32)とケーブル
(1) に締め付けると、図１の状態になる。尚、ゴムカバ
ー(35)は全体的に円錐状に形成されていると共に、その
側壁に形成された軸線方向全域に亘る切欠(39)を挟んで
対向するフランジ(37a) (37b) が設けられている。そし
て、切欠(39)部分を広げることによって、その大径側端
部と小径側端部を定着管(32)とケーブル(1) に各別に外
嵌させ、その後、フランジ(37a) (37b) に形成したボル
ト挿通孔部分をボルトとナットで締め付け、更に、ゴム
カバー(35)の両端を締め付けバンド(18)(19)で定着管(3
2)とケーブル(1) の外周に締付け固定すると、ゴムカバ
ー(35)の取付け作業が完了する。Thereafter, the upper end of the fixing tube (32) is covered with a rubber cover (35) as shown in FIG. 1 and both ends of the rubber cover (35) are tightened with bands (18) and (19). 32) and cable
When tightened in (1), the state shown in FIG. 1 is obtained. The rubber cover (35) is formed in a conical shape as a whole, and is provided with flanges (37a) (37b) opposed to each other across a notch (39) formed in the side wall of the rubber cover (35) over the entire area in the axial direction. ing. Then, by expanding the notch (39), the large-diameter end and the small-diameter end are fitted to the fixing tube (32) and the cable (1), respectively, and then the flanges (37a) (37b) Tighten the bolt insertion hole formed in the above with bolts and nuts, and then tighten both ends of the rubber cover (35) with the bands (18) and (19) to fix the fixing tube (3).
2) and the outer periphery of the cable (1) are tightened and fixed, and the mounting work of the rubber cover (35) is completed.
【００２２】このものでは、吹き付ける風雨でケーブル
(1) が振動すると、該ケーブル(1)を包囲している弾性
平板(61)(61)群が圧縮されて前記振動を吸収する。この
ものでは、円輪状に配置される一対の弾性平板(61)(61)
の突き合わせ境界部と、この上に重ね合わされる一対の
弾性平板(61)(61)の突き合わせ境界部が周方向に６０度
ピッチで順次ずれているから、ケーブル(1) の振動方向
に関わらず、該ケーブル(1) の振動吸収性能が均一にな
る。[0022] In this case, the cable is
When (1) vibrates, the elastic flat plates (61) and (61) surrounding the cable (1) are compressed to absorb the vibration. In this one, a pair of elastic flat plates (61) (61) arranged in a ring shape
The butting boundary of the pair of elastic flat plates (61) and (61) superimposed thereon is sequentially displaced at a pitch of 60 degrees in the circumferential direction, regardless of the vibration direction of the cable (1). Thus, the vibration absorbing performance of the cable (1) becomes uniform.
【００２３】即ち、弾性平板(61)(61)を半円筒状に積層
した状態にこれらを金属端板(51)(53)や結合ボルト(45)
(45)等で挟圧一体化すると共に、このように組み立てた
一対の半円筒体でケーブル(1) の外周を抱持する場合に
は、前記半円筒体の合わせ面と平行にケーブル(1) が振
動する場合と他の方向に振動する場合とでは、該振動を
吸収する性能にバラツキが生じる。前記半円筒体の合わ
せ面と平行な方向にケーブル(1) が振動する場合には、
前記半円筒体の合わせ面の境界部にケーブル(1) が若干
没入するように振動し、該方向へのケーブル(1) の振動
吸収性能が他の方向の振動吸収性能と等しくならないか
らである。これに対し、上記実施の形態では、弾性平板
(61)(61)の各組の突き合わせ境界部が周方向に６０度ピ
ッチで順次ずれているから、該突き合わせ境界部にケー
ブル(1) が侵入することがなく、従って、ケーブル(1)
の振動方向に関わらず、該ケーブル(1) の吸収性能が均
一になる。That is, in a state where the elastic flat plates (61) and (61) are stacked in a semi-cylindrical shape, these are connected to the metal end plates (51) and (53) and the connecting bolts (45).
(45) and the like, and when the outer periphery of the cable (1) is held by the pair of semi-cylindrical bodies thus assembled, the cable (1) is parallel to the mating surface of the semi-cylindrical bodies. ) Vibrates in a different direction from that in the other direction. When the cable (1) vibrates in a direction parallel to the mating surface of the semi-cylindrical body,
This is because the cable (1) vibrates so as to be slightly immersed at the boundary of the mating surface of the semi-cylindrical body, and the vibration absorbing performance of the cable (1) in this direction is not equal to the vibration absorbing performance in other directions. . In contrast, in the above embodiment, the elastic flat plate
(61) Since the butting boundary of each set of (61) is sequentially shifted at a pitch of 60 degrees in the circumferential direction, the cable (1) does not intrude into the butting boundary, and therefore, the cable (1)
Irrespective of the vibration direction, the absorption performance of the cable (1) becomes uniform.
【００２４】このものでは、図２の状態に於いて制振用
弾性体(2) を取り替える補修作業を行う場合には、先
ず、ゴムカバー(35)を取り外して制振用弾性体(2) の上
端部を露出させる。この状態で図４に現れる締付ナット
(26)(26)を緩めて結合ボルト(45)(45)から金属製端板(5
3)(54)を抜き取る。すると、該金属製端板(53)(54)を抜
き取った部分に弾性平板(61)(61)が露出するから、該弾
性平板(61)(61)を一枚づつ結合ボルト(45)(45)から抜き
取る。このとき、弾性平板(61)(61)を一枚づつ結合ボル
ト(45)(45)からの抜き取ることができるから、制振用弾
性体(2) に代えて液状ゴムを現場充填して硬化させたも
のに比べ、該弾性平板(61)(61)の除去作業が容易に行え
る。現場充填した液状ゴムは、ケーブル(1) の表面等に
付着して剥離等が困難だからである。In this case, when performing a repair work for replacing the vibration damping elastic body (2) in the state of FIG. 2, first, the rubber cover (35) is removed and the vibration damping elastic body (2) is removed. To expose the upper end of the The tightening nut that appears in Fig. 4 in this state
(26) Loosen (26) and remove the metal end plate (5
3) Remove (54). Then, since the elastic flat plates (61) and (61) are exposed at the portion where the metal end plates (53) and (54) are removed, the elastic flat plates (61) and (61) are connected one by one with the connecting bolts (45) and (61). 45). At this time, since the elastic flat plates (61) and (61) can be pulled out one by one from the connecting bolts (45) and (45), liquid rubber is filled in place instead of the vibration damping elastic body (2) and cured. The work of removing the elastic flat plates (61) (61) can be performed more easily as compared with the removed one. This is because the liquid rubber filled at the site adheres to the surface of the cable (1) and is difficult to peel off.
【００２５】次に、全ての弾性平板(61)(61)を除去した
後に、新たな弾性平板(61)(61)を既述設置作業時と同様
に金属端板(51)(52)上に一枚ずつ重ね合わせる。即ち、
ケーブル(1) の外周とモルタル層(17)の間に形成された
円筒状充填室(13)に、弾性平板(61)(61)を円輪状に配置
しながら、該円筒状充填室(13)の軸線方向に重ね合わ
せ、これにより、弾性平板(61)(61)のボルト挿通孔(67)
(67)に結合ボルト(45)(45)を挿通させた状態にする。こ
のとき、弾性平板(61)(61)を一枚づつ円筒状充填室(13)
内に充填することができるから、該弾性平板(61)(61)の
装填作業が容易に行える。即ち、弾性樹脂製の一対の半
円筒状のブロックをケーブル(1) とモルタル層(17)の間
の円筒状充填室(13)に強制的に押し込む場合と相違し、
本実施の形態では、前記円筒状のブロックに比べて薄い
弾性平板(61)(61)を一枚づつ積層するようにケーブル
(1) の周囲に装填することができるから、該装填作業が
容易に行える。そして、最上部に積層された弾性平板(6
1)(61)の上に再度金属製端板(53)(54)を重ねると共に、
該金属製端板(53)(54)に形成されたボルト挿通孔(56)(5
6)から突出する結合ボルト(45)(45)に締付ナット(26)(2
6)を螺合する。以後、既述と同様に定着管(32)の上端開
放部をゴムカバー(35)で覆うと、補修作業が完了する。Next, after removing all the elastic flat plates (61) and (61), new elastic flat plates (61) and (61) are placed on the metal end plates (51) and (52) in the same manner as in the above-described installation work. One by one. That is,
In the cylindrical filling chamber (13) formed between the outer periphery of the cable (1) and the mortar layer (17), while the elastic flat plates (61) and (61) are arranged in an annular shape, the cylindrical filling chamber (13 ) In the axial direction of the elastic plate (61), (61) (61) bolt insertion hole (67)
The connecting bolts (45) and (45) are inserted through (67). At this time, the elastic flat plates (61) and (61) are loaded one by one into the cylindrical filling chamber (13).
Since the inside can be filled, the work of loading the elastic flat plates (61) (61) can be easily performed. That is, unlike the case of forcibly pushing a pair of semi-cylindrical blocks made of an elastic resin into the cylindrical filling chamber (13) between the cable (1) and the mortar layer (17),
In the present embodiment, the cable is formed so that elastic thin plates (61) and (61) thinner than the cylindrical block are stacked one by one.
Since it can be loaded around (1), the loading operation can be easily performed. Then, the elastic flat plate (6
1) Overlap the metal end plates (53) and (54) again on (61),
Bolt insertion holes (56) (5) formed in the metal end plates (53) (54)
Tighten the nuts (26) (2) to the connecting bolts (45) (45) protruding from
Screw 6). Thereafter, when the upper end opening of the fixing tube (32) is covered with the rubber cover (35) as described above, the repair work is completed.
【００２６】尚、弾性平板(61)(61)としては、天然ゴ
ム，スチレンブタジエンゴム，ブタジエンゴム，アクニ
ロニトリルブタジエンゴム，クロロプレンゴム，エチレ
ンプロピレンゴム，エピクロヒドリンゴム，アクリルゴ
ム，フッ素ゴム，ハロゲン化ブチルゴム，ブチルゴム，
クロロスルフォン化ポリエチレン多硫化ゴム，シリコー
ンゴム，イソプレンゴム等の材料を使用することができ
る。 ［その他］ 上記実施の形態では、弾性平板(61)を単純な弾性樹
脂板で構成したが、図５に示すように、弾性平板(61)よ
り一回り小さな金属製の補強板(60)を該弾性平板(61)に
一体成形したものを採用してもよい。又、弾性平板(61)
内に繊維や金属板を埋め込んだものを採用することも可
能である。 弾性平板(61)(61)を定着管(32)の外部で積層状態に
一体化した後に、これを定着管(32)とケーブル(1) の間
に装填する場合には、次のように作業する。即ち、弾性
平板(61)(61)を半円筒状に積層した状態にこれらを金属
端板(51)(53)や結合ボルト(45)(45)等で挟圧一体化して
保持すると共に、金属端板(51)(52)及び弾性平板(61)(6
1)から成る半円筒状のブロックでケーブル(1) の外周を
抱持し、その外周に締結バンド等を捲回してこれら一対
の半円筒状のブロックをケーブル(1) に固定する。そし
て、その後定着管(32)の内周に樹脂モルタル又はモルタ
ルを充填する。 上記実施の形態では、制振用弾性体(2) の外周と定
着管(32)の間に樹脂モルタル又はモルタルを充填した
が、該樹脂モルタル等に代えて、既述弾性平板(61)(61)
と異なる材料からなる補助弾性体を充填して硬化させて
もよい。The elastic flat plates (61) and (61) include natural rubber, styrene butadiene rubber, butadiene rubber, acrylonitrile butadiene rubber, chloroprene rubber, ethylene propylene rubber, epichlorohydrin rubber, acrylic rubber, fluorine rubber, Halogenated butyl rubber, butyl rubber,
Materials such as chlorosulfonated polyethylene polysulfide rubber, silicone rubber, and isoprene rubber can be used. [Others] In the above embodiment, the elastic flat plate (61) is formed of a simple elastic resin plate. However, as shown in FIG. 5, a metal reinforcing plate (60) slightly smaller than the elastic flat plate (61) is used. The elastic flat plate (61) may be integrally molded. In addition, elastic flat plate (61)
It is also possible to adopt a fiber or a metal plate embedded inside. When the elastic flat plates (61) and (61) are integrated into a laminated state outside the fixing tube (32) and then loaded between the fixing tube (32) and the cable (1), the following is performed. Work. That is, while the elastic flat plates (61) and (61) are laminated in a semi-cylindrical shape, these are sandwiched and held together by metal end plates (51) (53) and coupling bolts (45) (45), and Metal end plates (51) (52) and elastic flat plates (61) (6
The outer periphery of the cable (1) is held by the semi-cylindrical block made of (1), and a fastening band or the like is wound around the outer periphery of the cable (1) to fix the pair of semi-cylindrical blocks to the cable (1). Then, the inner periphery of the fixing tube (32) is filled with resin mortar or mortar. In the above embodiment, resin mortar or mortar was filled between the outer periphery of the vibration damping elastic body (2) and the fixing tube (32), but instead of the resin mortar or the like, the elastic flat plate (61) ( 61)
A supplementary elastic body made of a material different from the above may be filled and cured.
【００２７】この場合、前記補助弾性体としては、ウレ
タン樹脂，エポキシ樹脂を採用することができる。特
に、制振特性を向上させる為には、液状の低分子ゴムを
硬化させたものを採用することが好ましい。具体的に
は、液状クロロプレンゴム，液状アクリロニトリルブタ
ジエンゴム，液状ブタンジエンゴム，液状エチレンプロ
ピレンゴム，等を単独で、もしくは、これらを２種以上
混合したものを採用することができる。In this case, urethane resin or epoxy resin can be used as the auxiliary elastic body. In particular, in order to improve the vibration damping characteristics, it is preferable to use a material obtained by curing a liquid low molecular rubber. Specifically, liquid chloroprene rubber, liquid acrylonitrile butadiene rubber, liquid butanediene rubber, liquid ethylene propylene rubber, or the like can be used alone, or a mixture of two or more of these can be used.
【図１】本発明のケーブル制振装置が組み込まれた定着
管(32)の配設部が現れた橋梁の要部の斜視図FIG. 1 is a perspective view of a main part of a bridge in which an arrangement part of a fixing pipe (32) in which a cable vibration damping device of the present invention is incorporated appears.
【図２】定着管(32)の上端近傍の断面を示す図FIG. 2 is a diagram showing a cross section near the upper end of a fixing tube (32).
【図３】制振用弾性体(2) の分解斜視図FIG. 3 is an exploded perspective view of an elastic body for vibration suppression (2).
【図４】制振用弾性体(2) をケーブル(1) の外周に組み
つける作業を説明する断面図FIG. 4 is a cross-sectional view illustrating an operation of attaching the vibration damping elastic body (2) to the outer periphery of the cable (1).
【図５】定着管(32)の上端近傍の平面図FIG. 5 is a plan view near the upper end of the fixing tube (32).
【図６】弾性平板(61)の変形例の断面図FIG. 6 is a sectional view of a modification of the elastic flat plate (61).
【図７】従来例の説明図FIG. 7 is an explanatory view of a conventional example.
【符号の説明】 (1) ・・・ケーブル (2) ・・・制振用弾性体 (3) ・・・桁 (32)・・・定着管[Explanation of Signs] (1) ... Cable (2) ... Elastic body for vibration suppression (3) ... Girder (32) ... Fixing tube
───────────────────────────────────────────────────── フロントページの続き (71)出願人 000006208 三菱重工業株式会社 東京都千代田区丸の内二丁目５番１号 (74)上記１名の代理人 100076912 弁理士 坂上 好博 (72)発明者 煙崎 岳 広島県福山市川口町５丁目17−16 エルデ ィム岩部Ｂ102 (72)発明者 鈴木 秀一 広島県福山市水呑町1028−５ (72)発明者 中務 定義 岡山県浅口郡里庄町浜中729−３ (72)発明者 真辺 保仁 兵庫県神戸市西区美賀多台１丁目４−２− 710 (72)発明者 山口 和範 広島県尾道市新浜１丁目６−４−308 Ｆターム(参考） 2D059 AA41 BB08 GG17 ──────────────────────────────────────────────────続 き Continued on the front page (71) Applicant 000006208 Mitsubishi Heavy Industries, Ltd. 2-5-1 Marunouchi, Chiyoda-ku, Tokyo (74) One of the above-mentioned agents 100076912 Patent Attorney Yoshihiro Sakagami (72) Inventor Imozaki 5-17-16 Kawaguchi-cho, Fukuyama-shi, Hiroshima Prefecture Eldim Iwabe B102 (72) Inventor Shuichi Suzuki 1028-5, Mizunmachi, Fukuyama-shi, Hiroshima (72) Inventor Middle-Autumn Definition 729 Hamanaka, Satosho-cho, Asakuchi-gun, Okayama Prefecture 3 (72) Inventor Yasuhito Manabe 1-4-2-710, Migatadai, Nishi-ku, Kobe-shi, Hyogo (72) Inventor Kazunori Yamaguchi 1-6-4-308, Shinhama, Onomichi-shi, Hiroshima F-term (reference) 2D059 AA41 BB08 GG17
Claims (5)
との間に張設されるケーブル(1) の振動を減衰させる為
の制振装置であって、 前記ケーブル(1) に対して余裕をもって外嵌すると共に
前記桁(3) に固定された定着管(32)と、 前記定着管(32)の上端部内に於いて前記ケーブル(1) を
包囲するように形成された円筒状充填室に充填される制
振用弾性体(2) と、を具備するケーブルの制振装置に於
いて、 前記制振用弾性体(2) は、 前記円筒状充填室内に於いて前記ケーブル(1) を包囲す
るように円輪状に配置された状態で軸線方向に重ね合わ
される半輪状の複数の弾性平板と、 前記弾性平板群を前記重ね合わせ状態に一体化する固定
具を具備している、ケーブルの制振装置。1. A vibration damping device for attenuating vibration of a cable (1) stretched between a bridge girder (3) and a fixing member supporting the bridge girder. A fixing tube (32) which is fitted to the girder (3) with a margin, and a cylinder formed so as to surround the cable (1) within the upper end of the fixing tube (32). A vibration-suppressing elastic body (2) filled in a cylindrical filling chamber, wherein the vibration-suppressing elastic body (2) comprises the cable in the cylindrical filling chamber. (1) comprising a plurality of semi-circular elastic flat plates superposed in the axial direction in a state of being arranged in a ring shape so as to surround the elastic plate, and a fixing device for integrating the elastic flat plate group into the superposed state. There is a cable damping device.
て、 前記円輪状に配置された一対の弾性平板相互の突き合わ
せ境界部と、これらに重ね合わされた他の一対の弾性平
板相互の突き合わせ境界部とは、互いに円周方向にずれ
ている、ケーブルの制振装置。2. The vibration damping device for a cable according to claim 1, wherein said pair of elastic flat plates arranged in a ring shape abut a boundary between said pair of elastic flat plates and a pair of other elastic flat plates overlapped with each other. Boundaries are cable dampers that are circumferentially offset from each other.
装置に於いて、 前記弾性平板は、弾性ゴムで形成されている、ケーブル
の制振装置。3. The cable damping device according to claim 1, wherein said elastic flat plate is formed of elastic rubber.
ブルの制振装置に於いて、 前記制振用弾性体(2) の外周と前記定着管(32)の内周の
間にはモルタルが充填されている、ケーブルの制振装
置。4. The vibration damping device for a cable according to claim 1, wherein an outer periphery of said elastic body for damping and an inner periphery of said fixing tube are provided. A cable damping device filled with mortar.
ブルの制振装置に於いて、 前記制振用弾性体(2) の外周と前記定着管(32)の内周の
間には、前記制振用弾性体(2) と異なる材質の補助弾性
体が充填されている、ケーブルの制振装置。5. The vibration damping device for a cable according to claim 1, wherein an outer circumference of said vibration damping elastic body (2) and an inner circumference of said fixing tube (32) are provided. A cable damping device, which is filled with an auxiliary elastic body made of a material different from that of the vibration damping elastic body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11136300A JP2000328517A (en) | 1999-05-17 | 1999-05-17 | Vibration controller for cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11136300A JP2000328517A (en) | 1999-05-17 | 1999-05-17 | Vibration controller for cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000328517A true JP2000328517A (en) | 2000-11-28 |
Family
ID=15171971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11136300A Pending JP2000328517A (en) | 1999-05-17 | 1999-05-17 | Vibration controller for cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000328517A (en) |
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| CN101545244B (en) * | 2009-04-27 | 2010-12-08 | 江苏法尔胜新日制铁缆索有限公司 | Stay cable internal damper with adaptive stay cable eccentricity and self-locking function |
| CN102277831A (en) * | 2011-05-13 | 2011-12-14 | 大连海事大学 | Stay cable structure for cable-stayed bridge |
| CN102733303A (en) * | 2012-07-06 | 2012-10-17 | 巨力索具股份有限公司 | Bending restrictor for stay cable of bridge |
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| CN107338720A (en) * | 2017-07-05 | 2017-11-10 | 中铁二院工程集团有限责任公司 | Board-like suspension rod wind resistance guiding device |
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1999
- 1999-05-17 JP JP11136300A patent/JP2000328517A/en active Pending
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|---|---|---|---|---|
| CN100354476C (en) * | 2002-04-22 | 2007-12-12 | Vsl国际股份公司 | Method for preventing pipe and at least one cable relative lateral displacement |
| CN101545244B (en) * | 2009-04-27 | 2010-12-08 | 江苏法尔胜新日制铁缆索有限公司 | Stay cable internal damper with adaptive stay cable eccentricity and self-locking function |
| JP2012233303A (en) * | 2011-04-28 | 2012-11-29 | Yokogawa Bridge Corp | Buffer body and bridge buffering structure using the same |
| CN102277831A (en) * | 2011-05-13 | 2011-12-14 | 大连海事大学 | Stay cable structure for cable-stayed bridge |
| CN102277831B (en) * | 2011-05-13 | 2012-12-26 | 大连海事大学 | Stay cable structure for cable-stayed bridge |
| CN102733303A (en) * | 2012-07-06 | 2012-10-17 | 巨力索具股份有限公司 | Bending restrictor for stay cable of bridge |
| CN102733303B (en) * | 2012-07-06 | 2015-01-14 | 巨力索具股份有限公司 | Bending restrictor for stay cable of bridge |
| CN103410092A (en) * | 2013-07-24 | 2013-11-27 | 东南大学 | Semi-active control method for vibration of inclined stay cable |
| CN107014477B (en) * | 2017-04-01 | 2019-03-29 | 汪哲荪 | Circular ring type suspension cable two-dimension vibration sensor and its application method |
| CN107014477A (en) * | 2017-04-01 | 2017-08-04 | 汪哲荪 | Circular ring type suspension cable two-dimension vibration sensor and its application method |
| CN107338720A (en) * | 2017-07-05 | 2017-11-10 | 中铁二院工程集团有限责任公司 | Board-like suspension rod wind resistance guiding device |
| CN112095447A (en) * | 2020-09-22 | 2020-12-18 | 马亮 | Novel annular damper for inhibiting vibration of bridge stay cable |
| CN112095447B (en) * | 2020-09-22 | 2022-02-01 | 中工建设集团(福建)有限公司 | Annular damper for inhibiting vibration of bridge stay cable |
| CN113250071A (en) * | 2021-07-06 | 2021-08-13 | 中铁大桥科学研究院有限公司 | Automatic excitation device and method for super-large bridge MR damper |
| CN113250071B (en) * | 2021-07-06 | 2021-10-26 | 中铁大桥科学研究院有限公司 | Automatic excitation device and method for super-large bridge MR damper |
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| CN114016384B (en) * | 2021-10-08 | 2024-05-28 | 中铁桥研科技有限公司 | View platform with vibration reduction function |
| CN114673101A (en) * | 2022-04-24 | 2022-06-28 | 中铁十四局集团第三工程有限公司 | Construction method for replacing stay cable of long-term service steel cable-stayed bridge |
| CN114673101B (en) * | 2022-04-24 | 2023-09-29 | 中铁十四局集团第三工程有限公司 | Construction method for replacing stay cable of long-service steel cable-stayed bridge |
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