JP2015222116A - Vibration-proof damper for wooden building - Google Patents

Vibration-proof damper for wooden building Download PDF

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JP2015222116A
JP2015222116A JP2014107563A JP2014107563A JP2015222116A JP 2015222116 A JP2015222116 A JP 2015222116A JP 2014107563 A JP2014107563 A JP 2014107563A JP 2014107563 A JP2014107563 A JP 2014107563A JP 2015222116 A JP2015222116 A JP 2015222116A
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damper
mounting
building
pin
cylinder
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長谷川 浩之
Hiroyuki Hasegawa
浩之 長谷川
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株式会社エッチ・ケー・エス
Hks Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To improve a transfer efficiency of load (force) caused by vibration of a building to a damper main body and effectively restrict vibration of the building.SOLUTION: This invention relates to a vibration-proof damper 10 for a wooden building in which at a side of at least a first fitting part 41 between the first fitting part 41 and a second fitting part 42, a spherical bearing 53 is arranged at one of the end parts of the fitting part 41 and a damper main body 20 connected to the fitting part, and a connecting pin 31 supported at the spherical bearing 53 is arranged at the other of them. With this arrangement, the first fitting part 41 and the second fitting part 42 are connected to the damper main body 20 without transmitting a bending moment to the damper main body 20 in all directions due to the presence of the spherical bearing 53.

Description

本発明は木造建物用制振ダンパに関する。   The present invention relates to a vibration damper for a wooden building.
従来、木造建物用の制振装置として、特許文献1に記載の如く、柱と梁の接合部に設置される方杖としてダンパを用いてなるものがある。この木造建物用制振ダンパは、地震時に、天井梁の水平方向移動に起因して柱と梁の接合部で生ずる大きな変形によって伸縮し、これによって生ずる減衰力を建物に付与し、建物の骨組に入力する地震エネルギを減少させてその耐震性能を向上させようとするものである。   Conventionally, as a vibration control device for a wooden building, as described in Patent Document 1, there is one using a damper as a cane installed at a joint between a column and a beam. This damping damper for wooden buildings expands and contracts due to a large deformation that occurs at the joint between the column and the beam due to the horizontal movement of the ceiling beam in the event of an earthquake, and gives the building the damping force that results from it. The seismic energy that is input to is reduced to improve its seismic performance.
従来の木造建物用制振ダンパは、ダンパ本体の一端部が連結ピンを介して第1の取付部に連結され、ダンパ本体の他端部が連結ピンを介して第2の取付部に連結され、第1と第2の取付部のそれぞれがそれらの取付部にダンパ本体を連結する各連結ピンを互いに平行配置する状態で、相交差する柱と梁の各側面に取付けられる。これにより、制振ダンパは、床梁と天井梁と柱が形成する壁枠の内部に設置され、柱と梁がそれらの接合部で、当該壁の鉛直面内における天井梁の水平方向移動に起因して生ずる回転変形を、第1と第2の取付部に設けた連結ピンを介してダンパ本体に伝え、ひいてはダンパ本体を伸縮させるものである。   In a conventional damping damper for a wooden building, one end of a damper body is connected to a first attachment part via a connection pin, and the other end of the damper body is connected to a second attachment part via a connection pin. Each of the first and second attachment portions is attached to the side surfaces of the columns and beams that intersect each other with the connection pins connecting the damper body to the attachment portions arranged in parallel to each other. As a result, the damping damper is installed inside the wall frame formed by the floor beam, ceiling beam, and column, and the column and beam are connected to each other to move the ceiling beam in the horizontal direction within the vertical plane of the wall. Rotational deformation caused by this is transmitted to the damper main body via the connecting pins provided in the first and second mounting portions, and as a result, the damper main body is expanded and contracted.
特開平9-279683号公報JP-A-9-279683
しかしながら、従来の木造建物の柱と梁に取付けられる方杖型制振ダンパには以下の問題点がある。   However, the conventional cane-type vibration damper attached to the pillars and beams of a wooden building has the following problems.
(1)地震等による建物の揺れに起因する多様な荷重(力)により、柱と梁の接合部におけるそれらの相対変位の向きが、第1と第2の取付部にダンパ本体を連結する各連結ピンの軸に直交し、かつダンパ本体の軸を含む平面の面外を向くときには、柱と梁に取付けられている第1と第2の取付部が連結ピンを介してダンパ本体に曲げモーメント(曲げ力)を伝達するものになる。   (1) Due to the various loads (forces) resulting from the shaking of the building due to earthquakes, etc., the relative displacement directions at the joints between the columns and beams connect the damper body to the first and second mounting parts. When it is perpendicular to the axis of the connecting pin and faces out of the plane including the axis of the damper body, the first and second mounting portions attached to the columns and beams are bent to the damper body via the connecting pin. (Bending force) is transmitted.
(2)建物の柱と梁の側面に建築当初からの丸味やゆがみがあり、又は建築後に生じたねじれがある等により、例えば第1の取付部が取付けられる柱の側面が完全な鉛直面でなかったり、第2の取付部が取付けられる梁の側面が完全な水平面でなかったときにも、それらの第1と第2の取付部が連結ピンを介してダンパ本体に曲げモーメント(曲げ力)を伝達するものになる。   (2) Due to the roundness and distortion from the beginning of the building on the side of the pillar and beam of the building, or torsion that occurred after the building, for example, the side of the column to which the first mounting part is attached is a complete vertical surface Even when the side surface of the beam to which the second attachment portion is attached is not a complete horizontal surface, the first and second attachment portions are bent to the damper body via the connecting pin (bending force). To communicate.
(3)上述(1)、(2)では、第1と第2の取付部から曲げモーメントが伝達されるダンパ本体が、例えばシリンダと、該シリンダに伸縮自在に挿入されるピストンロッドとを有してなるとき、ピストンロッドがシリンダの開口部に設けたロッドガイドをこじり、或いはピストンロッドの先端に設けてあるピストンがシリンダの内面をこじる等を生じる。従って、建物の揺れに起因する荷重(力)のダンパ本体への伝達効率が低下する。   (3) In the above (1) and (2), the damper main body to which the bending moment is transmitted from the first and second mounting portions has, for example, a cylinder and a piston rod that is inserted into the cylinder in a telescopic manner. In this case, the piston rod may bend the rod guide provided at the opening of the cylinder, or the piston provided at the tip of the piston rod may be bent against the inner surface of the cylinder. Accordingly, the transmission efficiency of the load (force) due to the shaking of the building to the damper main body is lowered.
本発明の課題は、建物の揺れに起因する荷重(力)のダンパ本体への伝達効率を向上し、建物の揺れを効果的に制振することにある。   The subject of this invention is improving the transmission efficiency to the damper main body of the load (force) resulting from the shaking of a building, and exists in damping a building's shaking effectively.
請求項1に係る発明は、木造建物の柱と梁の接合部に設置され、ダンパ本体の一端部が連結ピンを介して第1の取付部に連結され、ダンパ本体の他端部が連結ピンを介して第2の取付部に連結され、第1と第2の取付部のそれぞれが柱と梁のそれぞれに取付けられてなる木造建物用制振ダンパにおいて、第1と第2の取付部のうちの少なくとも片方の取付部の側で、該取付部と該取付部に連結されるダンパ本体の端部の一方に、球面軸受が設けられ、それらの他方に、上記球面軸受に支承される連結ピンが設けられてなるようにしたものである。   The invention according to claim 1 is installed at a junction between a pillar and a beam of a wooden building, one end of the damper main body is connected to the first mounting portion via a connecting pin, and the other end of the damper main body is connected to the connecting pin. In the vibration damper for a wooden building, which is connected to the second attachment portion via the first attachment portion and the first attachment portion and the second attachment portion are respectively attached to the pillar and the beam. A spherical bearing is provided on one of the end of the damper main body connected to the mounting portion and the mounting portion on at least one of the mounting portions, and the other is connected to the spherical bearing. A pin is provided.
請求項2に係る発明は、請求項1に係る発明において更に、前記ダンパ本体が、シリンダと、該シリンダに伸縮自在に挿入されたピストンロッドを有してなり、該シリンダから外方に突き出るピストンロッドの端部にロッドエンドベアリングが設けられ、このロッドエンドベアリングが備える球面軸受に連結ピンを支承してなるようにしたものである。   According to a second aspect of the present invention, in the first aspect of the invention, the damper main body further includes a cylinder and a piston rod inserted into the cylinder so as to be extendable and contractable, and the piston projecting outward from the cylinder. A rod end bearing is provided at the end of the rod, and a connecting pin is supported by a spherical bearing provided in the rod end bearing.
(請求項1)
(a)木造建物用制振ダンパは、第1と第2の取付部のうちの少なくとも片方の取付部の側で、該取付部と該取付部に連結されるダンパ本体の端部の一方に、球面軸受が設けられ、それらの他方に、上記球面軸受に支承される連結ピンが設けられてなるものにした。これにより、第1と第2の取付部は、球面軸受の介在により、ダンパ本体にあらゆる方向で曲げモーメントを伝達することなく、ダンパ本体に連結されるものになる。
(Claim 1)
(a) A vibration damper for a wooden building is provided on one side of at least one of the first and second mounting portions, on one side of the damper body connected to the mounting portion and the mounting portion. A spherical bearing is provided, and on the other of them, a connecting pin supported by the spherical bearing is provided. As a result, the first and second mounting portions are connected to the damper main body without transmitting a bending moment in any direction to the damper main body due to the spherical bearing.
i.従って、地震等による建物の揺れに起因する多様な荷重(力)により、柱と梁の接合部におけるそれらの相対変位の向きが、第1と第2の取付部にダンパ本体を連結する各連結ピンの軸に直交し、かつダンパ本体の軸を含む平面の面外を向くときにも、第1と第2の取付部が連結ピンを介してダンパ本体に曲げモーメント(曲げ力)を伝達することがない。   i. Therefore, due to the various loads (forces) caused by the shaking of the building due to earthquakes, etc., the direction of their relative displacement at the joint between the column and the beam will connect each damper body to the first and second mounting parts. The first and second mounting portions transmit a bending moment (bending force) to the damper main body via the connecting pin even when it is perpendicular to the axis of the pin and faces out of the plane including the axis of the damper main body. There is nothing.
ii.また、建物の柱と梁の側面に建築当初からの丸味やゆがみがあり、又は建築後に生じたねじれがある等により、例えば第1の取付部が取付けられる柱の側面が完全な鉛直面でなかったり、第2の取付部が取付けられる梁の側面が完全な水平面でなかったとしても、第1と第2の取付部が連結ピンを介してダンパ本体に曲げモーメント(曲げ力)を伝達することがない。   ii. Also, for example, the side of the column to which the first mounting part is attached is not a complete vertical surface due to the roundness and distortion from the beginning of construction on the side of the pillar and beam of the building, or torsion that occurred after construction. Even if the side surface of the beam to which the second attachment portion is attached is not a complete horizontal surface, the first and second attachment portions transmit a bending moment (bending force) to the damper main body via the connecting pin. There is no.
iii.上述i、iiより、第1と第2の取付部からダンパ本体に曲げモーメントが伝達されることがない。従って、ダンパ本体が、例えばシリンダと、該シリンダに伸縮自在に挿入されるピストンロッドを有してなるとき、ピストンロッドがシリンダの開口部に設けたロッドガイドをこじることがないし、ピストンロッドの先端に設けてあるピストンがシリンダの内面をこじる等がない。よって、建物の揺れに起因する荷重(力)のダンパ本体への伝達効率を向上し、建物の揺れを効果的に制振することができる。   iii. From i and ii described above, the bending moment is not transmitted from the first and second mounting portions to the damper body. Therefore, when the damper body has, for example, a cylinder and a piston rod that is inserted into the cylinder so as to be extendable and retractable, the piston rod does not squeeze the rod guide provided at the opening of the cylinder, and the tip of the piston rod The piston provided on the cylinder does not squeeze the inner surface of the cylinder. Therefore, the transmission efficiency to the damper main body of the load (force) resulting from the shaking of a building can be improved, and the shaking of a building can be controlled effectively.
(請求項2)
(b)前記ダンパ本体が、シリンダと、該シリンダに伸縮自在に挿入されたピストンロッドを有してなり、該シリンダから外方に突き出るピストンロッドの端部にロッドエンドベアリングが設けられ、このロッドエンドベアリングが備える球面軸受に連結ピンを支承する。これにより、上述(a)の木造建物用制振ダンパを簡易かつコンパクトに構成できる。
(Claim 2)
(b) The damper main body has a cylinder and a piston rod inserted into the cylinder so as to be extendable and retractable, and a rod end bearing is provided at an end of the piston rod protruding outward from the cylinder. The connecting pin is supported on a spherical bearing provided in the end bearing. Thereby, the damping damper for wooden buildings (a) described above can be configured simply and compactly.
図1は木造建物用制振ダンパの一例が適用された建物の要部を示す模式図である。FIG. 1 is a schematic diagram showing a main part of a building to which an example of a vibration damper for a wooden building is applied. 図2は木造建物用制振ダンパの一例の設置状態を示す模式図である。FIG. 2 is a schematic diagram showing an installation state of an example of a vibration damper for a wooden building. 図3は木造建物用制振ダンパの一例を示す側面図である。FIG. 3 is a side view showing an example of a vibration damper for a wooden building. 図4は図3のIV−IV線に沿う断面図である。4 is a cross-sectional view taken along line IV-IV in FIG. 図5は図3のV−V線に沿う断面図である。FIG. 5 is a cross-sectional view taken along line V-V in FIG.
図1、図2は、木造建物100の要部を取出して示したものであり、基礎101の上に水平状に設置された床梁102と、床梁102に対して平行をなす天井梁103を有し、床梁102と天井梁103の間に2本の柱104、105を鉛直状に立設したものである。このとき、床梁102、天井梁103、及び各柱104、105は木質材からなり、各柱104、105の下端部と上端部のそれぞれに設けられたほぞが、床梁102と天井梁103のそれぞれに設けたほぞ穴に接合される。   FIGS. 1 and 2 show the main part of the wooden building 100 taken out. The floor beam 102 installed horizontally on the foundation 101 and the ceiling beam 103 parallel to the floor beam 102 are shown. The two pillars 104 and 105 are erected vertically between the floor beam 102 and the ceiling beam 103. At this time, the floor beam 102, the ceiling beam 103, and the columns 104 and 105 are made of a wood material, and tenons provided at the lower end and the upper end of the columns 104 and 105 are respectively connected to the floor beam 102 and the ceiling beam 103. It is joined to the mortise provided in each.
木造建物100は、床梁102と天井梁103と各柱104、105が区画する矩形状の壁枠106内で、天井梁103と柱104の接合部に方杖型制振ダンパ10を設置している。制振ダンパ10は、壁枠106の両側のそれぞれに固定される両側の壁面材により挟まれる壁内スペースに納められるものになる。   In the wooden building 100, a cane-type vibration damper 10 is installed at the joint between the ceiling beam 103 and the column 104 in a rectangular wall frame 106 defined by the floor beam 102, the ceiling beam 103 and the columns 104 and 105. ing. The vibration damper 10 is housed in a space in the wall that is sandwiched by wall materials on both sides fixed to both sides of the wall frame 106.
制振ダンパ10は、天井梁103が床梁102に対する梁軸方向の相対変位(制振ダンパ10の制振方向)に対して減衰力を発生するものであれば、オイルダンパ、粘弾性ダンパ等のいかなるダンパでも採用できる。   The damping damper 10 may be an oil damper, a viscoelastic damper, or the like as long as the ceiling beam 103 generates a damping force relative to the relative displacement in the beam axis direction with respect to the floor beam 102 (the damping direction of the damping damper 10). Any damper can be used.
制振ダンパ10は、本実施例では、図3に示す如く、ダンパ本体20として、シリンダ22と、シリンダ22に伸縮自在に挿入されたピストンロッド21を有して構成される。制振ダンパ10は、シリンダ22の内部に設けた不図示のフリーピストンにより、シリンダ22の内部をガス圧室と油室に区画し、ピストンロッド21の先端に設けた不図示のピストンを油室の内部に配置し、ピストンに設けた圧側減衰力発生バルブと伸側減衰力発生バルブにより、シリンダ22に対するピストンロッド21の伸縮に応じた減衰力を発生する。   As shown in FIG. 3, the vibration damper 10 includes a cylinder body 22 and a piston rod 21 that is inserted into the cylinder 22 so as to be extendable and contractable. The damping damper 10 divides the inside of the cylinder 22 into a gas pressure chamber and an oil chamber by a free piston (not shown) provided inside the cylinder 22, and the piston (not shown) provided at the tip of the piston rod 21 serves as an oil chamber. A damping force corresponding to expansion and contraction of the piston rod 21 with respect to the cylinder 22 is generated by a compression side damping force generation valve and an extension side damping force generation valve provided in the piston.
制振ダンパ10は、図3〜図5に示す如く、ダンパ本体20の一端部であるピストンロッド21の先端部が連結ピン31を介して第1の取付部41に連結され、ダンパ本体20の他端部であるシリンダ22の底部が連結ピン32を介して第2の取付部42に連結される。第1の取付部41の取付板41Pが柱104の側面に止ねじ41Aにより固定的に取付けられ、第2の取付部42の取付板42Pが天井梁103の下側面に止ねじ42Aにより固定的に取付けられる(図2)。このとき、各連結ピン31、32は互いに平行配置される。   As shown in FIGS. 3 to 5, the damping damper 10 has a tip end portion of the piston rod 21, which is one end portion of the damper main body 20, connected to the first mounting portion 41 via a connecting pin 31. The bottom of the cylinder 22, which is the other end, is connected to the second mounting portion 42 via the connecting pin 32. The mounting plate 41P of the first mounting portion 41 is fixedly attached to the side surface of the column 104 by a set screw 41A, and the mounting plate 42P of the second mounting portion 42 is fixed to the lower side surface of the ceiling beam 103 by a set screw 42A. (FIG. 2). At this time, the connecting pins 31 and 32 are arranged in parallel to each other.
制振ダンパ10は、図4に示す如く、シリンダ22から外方に突き出るピストンロッド21の先端部にロッドエンドベアリング50を螺着し、これらをロックナット21Aで固定化している。ロッドエンドベアリング50は、ハウジング51の孔部にブッシュ52を介して球面軸受53を内蔵している。   As shown in FIG. 4, the vibration damper 10 has a rod end bearing 50 screwed to the tip of a piston rod 21 protruding outward from the cylinder 22 and fixed with a lock nut 21 </ b> A. The rod end bearing 50 incorporates a spherical bearing 53 through a bush 52 in the hole of the housing 51.
制振ダンパ10は、球面軸受53の内径部に軸方向の両側から挿填した両側のカラー54、54を介して、該球面軸受53の内径部に連結ピン31を挿通して支承し、この連結ピン31の両端部を第1の取付部41における取付板41Pの両側に設けた立上り板41K、41Kに固定化している。第1の取付部41の両側の立上り板41K、41Kは、両側のカラー54、54を介して球面軸受53を挟持する状態で、連結ピン31の頭部31Hと、そのねじ部に螺着したナット31Nにより締め込み保持されている。   The damping damper 10 is supported by inserting the connecting pin 31 into the inner diameter portion of the spherical bearing 53 via the collars 54 and 54 on both sides inserted into the inner diameter portion of the spherical bearing 53 from both sides in the axial direction. Both ends of the connecting pin 31 are fixed to rising plates 41K and 41K provided on both sides of the mounting plate 41P in the first mounting portion 41. The rising plates 41K and 41K on both sides of the first mounting portion 41 are screwed to the head portion 31H of the connecting pin 31 and its threaded portion while sandwiching the spherical bearing 53 via the collars 54 and 54 on both sides. The nut 31N is tightened and held.
制振ダンパ10は、図5に示す如く、シリンダ22の底部に設けた底蓋23、及び底蓋23に被着したキャップ24の各横孔に連結ピン32を挿通して支承し、この連結ピン32の両端部を第2の取付部42における取付板42Pの両側に設けた立上り板42K、42Kに固定化している。第2の取付部42の両側の立上り板42K、42Kは、底蓋23及びキャップ24を挟持する状態で、連結ピン32の頭部32Hと、そのねじ部に螺着したナット32Nにより締め込み保持されている。   As shown in FIG. 5, the vibration damper 10 is supported by inserting a connecting pin 32 into each side hole of a bottom cover 23 provided at the bottom of the cylinder 22 and a cap 24 attached to the bottom cover 23. Both ends of the pin 32 are fixed to rising plates 42K and 42K provided on both sides of the mounting plate 42P in the second mounting portion 42. The rising plates 42K and 42K on both sides of the second mounting portion 42 are clamped and held by the head 32H of the connecting pin 32 and the nut 32N screwed to the screw portion in a state where the bottom lid 23 and the cap 24 are sandwiched. Has been.
従って、制振ダンパ10にあっては、第1と第2の取付部41、42のうちの片方である第1の取付部41の側で、該第1の取付部41に連結されるピストンロッド21の先端部に球面軸受53を設け、該球面軸受53に支承される連結ピン31を該第1の取付部41に設けた。球面軸受53は、第1の取付部41とピストンロッド21の先端部との連結部分のあらゆる方向で、いかなる曲げモーメント(曲げ力)も伝達しない。   Accordingly, in the vibration damper 10, the piston connected to the first mounting portion 41 on the first mounting portion 41 side which is one of the first and second mounting portions 41 and 42. A spherical bearing 53 is provided at the tip of the rod 21, and a connecting pin 31 supported by the spherical bearing 53 is provided in the first mounting portion 41. The spherical bearing 53 does not transmit any bending moment (bending force) in any direction of the connecting portion between the first mounting portion 41 and the tip of the piston rod 21.
尚、本実施例では、第1の取付部41の側で、該第1の取付部41に球面軸受53を設け、該球面軸受53に支承される連結ピン31を該第1の取付部41に連結されるピストンロッド21の先端部に設けるものとしても良い。   In this embodiment, a spherical bearing 53 is provided on the first mounting portion 41 on the first mounting portion 41 side, and the connecting pin 31 supported by the spherical bearing 53 is connected to the first mounting portion 41. It is good also as what is provided in the front-end | tip part of the piston rod 21 connected with.
更に、本発明では、第2の取付部42の側に球面軸受を設け、この球面軸受に連結ピン32を支承するものとしても良い。或いは、第1の取付部41と第2の取付部42の両方の側に球面軸受を設け、これらの球面軸受に各連結ピン31、32を支承するものとしても良い。   Furthermore, in the present invention, a spherical bearing may be provided on the second mounting portion 42 side, and the connection pin 32 may be supported on the spherical bearing. Alternatively, spherical bearings may be provided on both sides of the first mounting portion 41 and the second mounting portion 42, and the connecting pins 31 and 32 may be supported on these spherical bearings.
木造建物用制振ダンパ10にあっては、地震力F(又は風力等)によって建物100に図1(A)〜(B)の如くの揺れが生じ、天井梁103が床梁102に対して相対移動し、柱104と天井梁103がそれらの接合部で回転変形したとき、制振ダンパ10のダンパ本体20が伸縮して減衰力を生じ、この減衰力が天井梁103の変位を抑え、建物100の揺れを低減する。   In the vibration damper 10 for a wooden building, the seismic force F (or wind force or the like) causes the building 100 to sway as shown in FIGS. When the relative movement occurs and the column 104 and the ceiling beam 103 are rotationally deformed at their joints, the damper main body 20 of the damping damper 10 expands and contracts to generate a damping force, and this damping force suppresses the displacement of the ceiling beam 103, The shaking of the building 100 is reduced.
本実施例によれば以下の作用効果を奏する。
(a)木造建物用制振ダンパ10は、第1と第2の取付部41、42のうちの少なくとも片方の取付部41の側で、該取付部41と該取付部41に連結されるダンパ本体20の端部の一方に、球面軸受53が設けられ、それらの他方に、上記球面軸受53に支承される連結ピン31が設けられてなるものにした。これにより、第1と第2の取付部41、42は、球面軸受53の介在により、ダンパ本体20にあらゆる方向で曲げモーメントを伝達することなく、ダンパ本体20に連結されるものになる。
According to the present embodiment, the following operational effects can be obtained.
(a) The vibration damper 10 for a wooden building is connected to the mounting portion 41 and the mounting portion 41 on at least one mounting portion 41 side of the first and second mounting portions 41 and 42. A spherical bearing 53 is provided on one of the end portions of the main body 20, and a connecting pin 31 supported by the spherical bearing 53 is provided on the other end thereof. As a result, the first and second mounting portions 41 and 42 are connected to the damper main body 20 without transmitting a bending moment to the damper main body 20 in any direction due to the spherical bearing 53 interposed.
i.従って、地震等による建物100の揺れに起因する多様な荷重(力)により、柱104と天井梁103の接合部におけるそれらの相対変位の向きが、第1と第2の取付部41、42にダンパ本体20を連結する各連結ピン31、32の軸に直交し、かつダンパ本体20の軸を含む平面の面外を向くとき(換言すれば、当該平面に交差する方向に向くとき)にも、第1と第2の取付部41、42が連結ピン31、32を介してダンパ本体20に曲げモーメント(曲げ力)を伝達することがない。   i. Therefore, due to various loads (forces) caused by the shaking of the building 100 due to an earthquake or the like, the direction of the relative displacement at the joint portion between the column 104 and the ceiling beam 103 becomes the first and second mounting portions 41 and 42. Also when it is orthogonal to the axis of each of the connecting pins 31 and 32 that connect the damper main body 20 and faces out of the plane including the axis of the damper main body 20 (in other words, when it faces the direction intersecting the plane). The first and second attachment portions 41 and 42 do not transmit a bending moment (bending force) to the damper main body 20 via the connecting pins 31 and 32.
ii.また、建物100の柱104と天井梁103の側面に建築当初からの丸味やゆがみがあり、又は建築後に生じたねじれがある等により、例えば第1の取付部が取付けられる柱104の側面が完全な鉛直面でなかったり、第2の取付部が取付けられる天井梁103の側面が完全な水平面でなかったとしても、第1と第2の取付部41、42が連結ピン31を介してダンパ本体20に曲げモーメント(曲げ力)を伝達することがない。   ii. Further, due to the roundness and distortion from the beginning of construction on the side surfaces of the pillars 104 and the ceiling beams 103 of the building 100, or torsion caused after the construction, for example, the side surfaces of the pillars 104 to which the first mounting portions are attached are completely. The first and second mounting portions 41 and 42 are connected to the damper main body via the connecting pin 31 even if the side surface of the ceiling beam 103 to which the second mounting portion is mounted is not a complete horizontal surface. No bending moment (bending force) is transmitted to 20.
iii.上述i、iiより、第1と第2の取付部41、42からダンパ本体20に曲げモーメントが伝達されることがない。従って、ダンパ本体20が、例えばシリンダ22と、該シリンダ22に伸縮自在に挿入されるピストンロッド21を有してなるとき、ピストンロッド21がシリンダ22の開口部に設けたロッドガイドをこじることがないし、ピストンロッド21の先端に設けてあるピストンがシリンダ22の内面をこじる等がない。よって、建物100の揺れに起因する荷重(力)のダンパ本体20への伝達効率を向上し、建物100の揺れを効果的に制振することができる。   iii. From i and ii described above, the bending moment is not transmitted from the first and second mounting portions 41 and 42 to the damper main body 20. Therefore, when the damper main body 20 has, for example, the cylinder 22 and the piston rod 21 that is inserted into the cylinder 22 so as to be extendable and contractible, the piston rod 21 may squeeze the rod guide provided at the opening of the cylinder 22. In addition, the piston provided at the tip of the piston rod 21 does not squeeze the inner surface of the cylinder 22. Therefore, the transmission efficiency of the load (force) resulting from the shaking of the building 100 to the damper main body 20 can be improved, and the shaking of the building 100 can be effectively suppressed.
(b)前記ダンパ本体20が、シリンダ22と、該シリンダ22に伸縮自在に挿入されたピストンロッド21を有してなり、該シリンダ22から外方に突き出るピストンロッド21の端部にロッドエンドベアリング50が設けられ、このロッドエンドベアリング50が備える球面軸受53に連結ピン31を支承する。これにより、上述(a)の木造建物用制振ダンパ10を簡易かつコンパクトに構成できる。   (b) The damper main body 20 includes a cylinder 22 and a piston rod 21 inserted into the cylinder 22 so as to be extendable and contracted, and a rod end bearing is provided at the end of the piston rod 21 protruding outward from the cylinder 22. 50, and the connecting pin 31 is supported on a spherical bearing 53 provided in the rod end bearing 50. Thereby, the damping damper 10 for wooden buildings mentioned above (a) can be comprised simply and compactly.
以上、本発明の実施例を図面により詳述したが、本発明の具体的な構成はこの実施例に限られるものではなく、本発明の要旨を逸脱しない範囲の設計の変更等があっても本発明に含まれる。例えば、本発明の木造建物用制振ダンパは、床梁102と柱104の接合部に設置される方杖型制振ダンパにも適用できる。   The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention. It is included in the present invention. For example, the vibration damper for a wooden building of the present invention can also be applied to a cane type vibration damper installed at the joint between the floor beam 102 and the column 104.
また、本発明の木造建物用制振ダンパは、建物の上階部の柱梁接合部にも適用できる。   The vibration damper for a wooden building of the present invention can also be applied to a column beam joint on the upper floor of the building.
本発明によれば、建物の揺れに起因する荷重(力)のダンパ本体への伝達効率を向上し、建物の揺れを効果的に制振することができる。   ADVANTAGE OF THE INVENTION According to this invention, the transmission efficiency to the damper main body of the load (force) resulting from the shaking of a building can be improved, and the shaking of a building can be suppressed effectively.
10 木造建物用制振ダンパ
20 ダンパ本体
21 ピストンロッド
22 シリンダ
31、32 連結ピン
41 第1の取付部
42 第2の取付部
50 ロッドエンドベアリング
53 球面軸受
100 木造建物
102 床梁
103 天井梁
104、105 柱
DESCRIPTION OF SYMBOLS 10 Damping damper 20 for wooden buildings Damper main body 21 Piston rod 22 Cylinders 31 and 32 Connection pin 41 1st attaching part 42 2nd attaching part 50 Rod end bearing 53 Spherical bearing 100 Wooden building 102 Floor beam 103 Ceiling beam 104, 105 pillars

Claims (2)

  1. 木造建物の柱と梁の接合部に設置され、ダンパ本体の一端部が連結ピンを介して第1の取付部に連結され、ダンパ本体の他端部が連結ピンを介して第2の取付部に連結され、第1と第2の取付部のそれぞれが柱と梁のそれぞれに取付けられてなる木造建物用制振ダンパにおいて、
    第1と第2の取付部のうちの少なくとも片方の取付部の側で、該取付部と該取付部に連結されるダンパ本体の端部の一方に、球面軸受が設けられ、それらの他方に、上記球面軸受に支承される連結ピンが設けられてなることを特徴とする木造建物用制振ダンパ。
    Installed at the junction between the pillar and beam of the wooden building, one end of the damper body is connected to the first mounting part via a connecting pin, and the other end of the damper body is connected to the second mounting part via the connecting pin In the vibration damper for a wooden building in which each of the first and second attachment portions is attached to each of the pillar and the beam,
    On at least one of the first and second mounting portions, a spherical bearing is provided on one of the mounting portion and the end of the damper main body connected to the mounting portion, and on the other of them. A damping damper for a wooden building, characterized in that a connecting pin supported by the spherical bearing is provided.
  2. 前記ダンパ本体が、シリンダと、該シリンダに伸縮自在に挿入されたピストンロッドを有してなり、該シリンダから外方に突き出るピストンロッドの端部にロッドエンドベアリングが設けられ、このロッドエンドベアリングが備える球面軸受に連結ピンを支承してなる請求項1に記載の木造建物用制振ダンパ。   The damper main body has a cylinder and a piston rod that is inserted into the cylinder so as to be extendable and retractable. A rod end bearing is provided at an end of the piston rod protruding outward from the cylinder. The vibration damper for a wooden building according to claim 1, wherein the connecting pin is supported on the spherical bearing provided.
JP2014107563A 2014-05-23 2014-05-23 Vibration-proof damper for wooden building Pending JP2015222116A (en)

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JP2011112216A (en) * 2009-11-30 2011-06-09 Ohbayashi Corp Base isolation system

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JP2000220317A (en) * 1999-01-29 2000-08-08 Kayaba Ind Co Ltd Attaching structure of oil damper
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JP2011112216A (en) * 2009-11-30 2011-06-09 Ohbayashi Corp Base isolation system

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WO2018097216A1 (en) * 2016-11-25 2018-05-31 日立オートモティブシステムズ株式会社 Vibration damping device
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