JP7344836B2 - A method of introducing tensile force into the tie rods of a vibration damping device installed in a column-beam frame structure. - Google Patents

A method of introducing tensile force into the tie rods of a vibration damping device installed in a column-beam frame structure. Download PDF

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JP7344836B2
JP7344836B2 JP2020083321A JP2020083321A JP7344836B2 JP 7344836 B2 JP7344836 B2 JP 7344836B2 JP 2020083321 A JP2020083321 A JP 2020083321A JP 2020083321 A JP2020083321 A JP 2020083321A JP 7344836 B2 JP7344836 B2 JP 7344836B2
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tie rod
seesaw member
column
tensile force
seesaw
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JP2021179086A (en
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裕一 平田
浩之 原田
学 川島
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Sumitomo Mitsui Construction Co Ltd
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Description

本開示は、柱梁架構体に設置されてタイロッド及びダンパーを備える制振装置のタイロッドに引張力を導入する方法に関する。 The present disclosure relates to a method for introducing a tensile force into a tie rod of a vibration damping device installed in a column-beam frame structure and including a tie rod and a damper.

柱梁架構体に設置される耐震部材としてブレースが挙げられる。ブレースは互いに交差するように柱梁架構体の対角線上に１対設けられる。特許文献１は、このような１対のブレースに類似する構造を備える制振装置を記載している。特許文献１に記載の制振装置は、梁に回転可能に支持された平行部材（シーソー部材）と、梁及び平行部材を連結する１対のダンパーと、互いに交差し、一端部において平行部材の端部に回転可能に支持され、他端部において他の梁の端部に回転可能に支持された第１ブレース及び第２ブレース（タイロッド）とを備える。第１ブレースは、クロスターンバックルを含み、第２ブレースは、クロスターンバックルに設けられた貫通孔を貫通している。 A brace is an example of an earthquake-resistant member installed in a column-beam frame structure. A pair of braces are provided on diagonal lines of the column-beam frame structure so as to intersect with each other. Patent Document 1 describes a vibration damping device having a structure similar to such a pair of braces. The vibration damping device described in Patent Document 1 includes a parallel member (seesaw member) rotatably supported by a beam, a pair of dampers that connect the beam and the parallel member, and a pair of dampers that intersect with each other and connect the parallel member at one end. A first brace and a second brace (tie rod) are rotatably supported at one end and rotatably supported at the other end of another beam. The first brace includes a cross turnbuckle, and the second brace extends through a through hole provided in the cross turnbuckle.

地震時に、第１及び第２ブレースの一方が引張力を受け伸長すると平行部材の一端側を引き上げ、平行部材の他端側が下降して第１及び第２ブレースの他方の端部が引き下げられる。この平行部材の変位によって柱梁架構体の対角線が短くなることに起因する第１及び第２ブレースの他方の短くなる方向への変位が吸収されるため、該他方は、圧縮力をほとんど受けない。 During an earthquake, when one of the first and second braces is extended by a tensile force, one end of the parallel member is pulled up, the other end of the parallel member is lowered, and the other end of the first and second braces is pulled down. This displacement of the parallel members absorbs the displacement of the other of the first and second braces in the direction of shortening, which is caused by the shortening of the diagonal of the column-beam frame structure, so the other is hardly subjected to compressive force. .

特許第５５１５１００号公報Patent No. 5515100

特許文献１に記載の制振装置の第１及び第２ブレースは、地震時にわずかに圧縮力を受けるおそれがあるため、あらかじめ双方に引張力を導入しておくことが望ましい。第１及び第２ブレースがターンバックルを含む構造であれば、作業員がターンバックルを回転させることにより引張力を導入できるが、人力でターンバックルを回転させて十分な引張力を導入することは困難である。第１及び第２ブレースにそれぞれジャッキ等により引張力を導入することは、手間がかかるとともに、クロスターンバックルの貫通孔の位置と貫通孔に挿通される第２ブレースとの位置を合わせる必要がある等、施工精度の管理が難しかった。 Since the first and second braces of the vibration damping device described in Patent Document 1 may receive a slight compressive force during an earthquake, it is desirable to introduce tensile force into both braces in advance. If the first and second braces have a structure that includes a turnbuckle, a worker can introduce a tensile force by rotating the turnbuckle, but it is not possible to introduce a sufficient tensile force by rotating the turnbuckle manually. Have difficulty. Introducing tensile force to each of the first and second braces using a jack or the like takes time and effort, and it is also necessary to align the position of the through-hole of the cross turnbuckle with the position of the second brace inserted through the through-hole. etc., making it difficult to manage construction accuracy.

このような問題に鑑み、本発明は、柱梁架構体に設置される制振装置のタイロッドに簡便に十分な引張力を導入できる方法を提供することを目的とする。 In view of these problems, an object of the present invention is to provide a method that can easily introduce sufficient tensile force into the tie rods of a vibration damping device installed in a column-beam frame structure.

本発明のある実施形態は、柱及び梁の一方を構成して互いに対向する第１部材（１３）及び第２部材（１４）を含む柱梁架構体（１１）に対して前記第１部材（１３）に平行な所定方向に長さを有するシーソー部材（１５）と、前記シーソー部材における前記所定方向の中間部及び前記第１部材（１３）に接合して、前記シーソー部材（１５）を前記第１部材（１３）に対して前記柱梁架構体（１１）の構面に直交する軸線方向回りに回転可能にするピン接合体（１６）と、制振力を加えるべく前記シーソー部材（１５）及び前記第１部材（１３）に連結したダンパー（１７）と、一端部が前記シーソー部材（１５）における前記所定方向の一端部に前記軸線方向回りに回転可能に接合され、他端部が前記柱梁架構体（１１）における前記第２部材（１４）の一端側の隅部に前記軸線方向回りに回転可能に接合された第１タイロッド（１８）と、前記第１タイロッド（１８）に交差するように配置され、一端部が前記シーソー部材（１５）における前記所定方向の他端部に前記軸線方向回りに回転可能に接合され、他端部が前記柱梁架構体（１１）における前記第２部材（１４）の他端側の隅部に前記軸線方向回りに回転可能に接合された第２タイロッド（１９）とを備える制振装置（１０）において、前記第１タイロッド（１８）及び前記第２タイロッド（１９）に引張力を導入する方法であって、前記ピン接合体（１７）及び前記シーソー部材（１５）を前記柱梁架構体（１１）に設置するステップと、前記第１タイロッド（１８）及び前記第２タイロッド（１９）を前記シーソー部材（１５）及び対応する前記隅部に接合するステップと、前記接合するステップの前又は後に、前記ダンパー（１７）を前記シーソー部材（１５）及び前記第１部材（１３）に連結するステップとを備え、前記接合するステップは、前記第２タイロッド（１９）が前記シーソー部材（１５）及び前記隅部に接合し、前記シーソー部材（１５）が設置完了後の姿勢に対して前記第２タイロッド（１９）が短くなる向きに傾き、かつ、前記第１タイロッド（１８）の前記一端部及び前記他端部の一方が前記シーソー部材（１５）又は対応する前記隅部に連結した状態で、ジャッキ（２４）によって前記第１タイロッドの前記一端部及び前記他端部の他方を引っ張ることにより前記第１タイロッド（１８）に引張力を導入して、前記第１タイロッド（１８）の前記一端部及び前記他端部の前記他方を対応する前記隅部又は前記シーソー部材（１５）に連結することを含むことを特徴とする。 In an embodiment of the present invention, the first member ( a seesaw member (15) having a length in a predetermined direction parallel to A pin joint (16) that allows the first member (13) to rotate around an axis perpendicular to the structural plane of the column-beam frame structure (11), and a seesaw member (15) that applies vibration damping force. ) and a damper (17) connected to the first member (13), one end of which is rotatably joined to one end of the seesaw member (15) in the predetermined direction about the axial direction, and the other end of which is connected to the first member (13). A first tie rod (18) rotatably joined to the corner of the second member (14) on the one end side of the column-beam frame structure (11) in the axial direction; They are arranged to intersect with each other, one end of which is rotatably joined to the other end of the seesaw member (15) in the predetermined direction about the axial direction, and the other end of the seesaw member (15) of the column-beam frame structure (11). A vibration damping device (10) comprising a second tie rod (19) rotatably joined to a corner on the other end side of the second member (14) around the axial direction, wherein the first tie rod (18) and A method for introducing a tensile force into the second tie rod (19), the method comprising: installing the pin assembly (17) and the seesaw member (15) on the column-beam frame structure (11); Before or after the step of joining the tie rod (18) and the second tie rod (19) to the seesaw member (15) and the corresponding corner, the damper (17) is connected to the seesaw member (15). 15) and the first member (13), and the joining step includes the step of joining the second tie rod (19) to the seesaw member (15) and the corner, and connecting the second tie rod (19) to the seesaw member (15) and the corner portion. 15) is inclined in a direction in which the second tie rod (19) is shortened with respect to the posture after installation is completed, and one of the one end and the other end of the first tie rod (18) is aligned with the seesaw member ( 15) Or introducing a tensile force to the first tie rod (18) by pulling the other of the one end and the other end of the first tie rod with a jack (24) while connected to the corresponding corner. The present invention is characterized in that the first tie rod (18) includes connecting the other of the one end and the other end of the first tie rod (18) to the corresponding corner or the seesaw member (15).

この方法によれば、ジャッキにより第１タイロッドを引っ張るため、十分な引張力を導入することができ、第２タイロッドに直接に引張力を加えなくとも第２タイロッドに引張力が導入されるため、簡便に第１及び第２タイロッドの双方に引張力を導入できる。 According to this method, since the first tie rod is pulled by the jack, a sufficient tensile force can be introduced, and the tensile force can be introduced to the second tie rod without directly applying a tensile force to the second tie rod. A tensile force can be easily introduced into both the first and second tie rods.

本発明のある実施形態は、上記構成において、前記第２タイロッド（１９）はターンバックル（２３）を含み、前記接合するステップは、前記シーソー部材（１５）が設置完了後に所望の姿勢となるように、前記第１タイロッドに引張力が加わっていない状態で前記ターンバックル（２３）を回して前記第２タイロッド（１９）の長さ及び前記シーソー部材（１５）の傾きを調整することを含むことを特徴とする。 In an embodiment of the present invention, in the above configuration, the second tie rod (19) includes a turnbuckle (23), and the joining step is performed so that the seesaw member (15) assumes a desired posture after installation is completed. and adjusting the length of the second tie rod (19) and the inclination of the seesaw member (15) by turning the turnbuckle (23) while no tensile force is applied to the first tie rod. It is characterized by

この構成によれば、ターンバックルを回すことにより、導入される引張力の値及びシーソー部材の姿勢を容易に調整することができる。 According to this configuration, by turning the turnbuckle, the value of the tensile force introduced and the attitude of the seesaw member can be easily adjusted.

本発明のある実施形態は、上記構成の何れかにおいて、前記第１タイロッド（１８）の前記一端部及び前記他端部の前記他方は、前記シーソー部材（１５）に接合する前記一端部であり、前記接合するステップは、前記第１タイロッド（１８）に引張力を導入するときの反力が前記シーソー部材（１５）に加わるように、前記ジャッキ（２４）を前記シーソー部材（１５）に取り付け、引張力の導入後に前記ジャッキ（２４）を前記シーソー部材（１５）から取り外すことを含むことを特徴とする。 In an embodiment of the present invention, in any of the above configurations, the other of the one end and the other end of the first tie rod (18) is the one end joined to the seesaw member (15). , the joining step includes attaching the jack (24) to the seesaw member (15) so that a reaction force when introducing a tensile force to the first tie rod (18) is applied to the seesaw member (15). , characterized in that it includes removing the jack (24) from the seesaw member (15) after the introduction of the tensile force.

この構成によれば、第１タイロッドの一端部のシーソー部材への接合を容易に行える。 According to this configuration, one end of the first tie rod can be easily joined to the seesaw member.

本発明によれば、柱梁架構体に設置される制振装置のタイロッドに簡便に十分な引張力を導入できる。 According to the present invention, sufficient tensile force can be easily introduced into the tie rods of the vibration damping device installed in the column-beam frame structure.

実施形態に係る制振装置の正面図Front view of a vibration damping device according to an embodiment 実施形態に係る制振装置の設置手順を示す説明図Explanatory diagram showing the installation procedure of the vibration damping device according to the embodiment 実施形態に係る制振装置の設置手順を示す説明図Explanatory diagram showing the installation procedure of the vibration damping device according to the embodiment

以下、図面を参照して本発明の実施形態について説明する。 Embodiments of the present invention will be described below with reference to the drawings.

図１は実施形態に係る制振装置１０を示す。制振装置１０は、建物の柱梁架構体１１に設置される。柱梁架構体１１は、鉛直方向に延在し互いに隣り合う１対の柱部材１２と、１対の柱部材１２間に水平に掛け渡された梁部材である第１部材１３と、第１部材１３よりも上層において１対の柱部材１２間に水平に掛け渡された梁部材である第２部材１４とを備える。柱梁架構体１１は、鉄骨造、鉄筋コンクリート等のコンクリート造、若しくは木造、又は、これらの複合構造等である。図示する柱梁架構体１１は、１対の柱部材１２並びに第１及び第２部材１３，１４がＨ形鋼によって構成された鉄骨造である。 FIG. 1 shows a vibration damping device 10 according to an embodiment. The vibration damping device 10 is installed in a column-beam frame structure 11 of a building. The column-beam frame structure 11 includes a pair of column members 12 that extend in the vertical direction and are adjacent to each other, a first member 13 that is a beam member horizontally spanned between the pair of column members 12, and a first member 13 that is a beam member that extends horizontally between the pair of column members 12. A second member 14, which is a beam member horizontally spanned between a pair of column members 12, is provided in an upper layer than the member 13. The column-beam frame structure 11 is a steel structure, a concrete structure such as reinforced concrete, a wooden structure, or a composite structure thereof. The illustrated column-beam frame structure 11 is a steel structure in which a pair of column members 12 and first and second members 13 and 14 are made of H-beam steel.

制振装置１０は、シーソー部材１５と、シーソー部材１５と第１部材１３とを接合して、シーソー部材１５を第１部材１３に対して回転可能に支持するピン接合体１６と、第１部材１３とシーソー部材１５の両端部とを互いに連結する１対のダンパー１７と、互いに交差するように配置され、それぞれ一端部においてシーソー部材１５の互いに異なる端部にピン接合し、他端部において柱梁架構体１１における第２部材１４の相反する側と柱部材１２との隅部にピン接合する第１タイロッド１８及び第２タイロッド１９とを備える。 The vibration damping device 10 includes a seesaw member 15, a pin joint 16 that joins the seesaw member 15 and the first member 13 to rotatably support the seesaw member 15 with respect to the first member 13, and a first member. 13 and both ends of the seesaw member 15. A pair of dampers 17 are arranged so as to intersect with each other, and each end is connected to a different end of the seesaw member 15 with a pin, and the other end is connected to a pillar. A first tie rod 18 and a second tie rod 19 are provided that are pin-joined to corners of opposite sides of the second member 14 and the column member 12 in the beam frame structure 11 .

シーソー部材１５は、第１部材１３と平行な方向に長手方向の長さを有する長尺材を含み、例えば、形鋼や鋼管等の鋼材から構成される。シーソー部材１５は、柱梁架構体１１の構面に直交する軸線回りの曲げに対する剛性、耐力が高いことが好ましい。 The seesaw member 15 includes a long member having a longitudinal length in a direction parallel to the first member 13, and is made of, for example, a steel material such as a shaped steel or a steel pipe. It is preferable that the seesaw member 15 has high rigidity and resistance to bending around an axis perpendicular to the structural surface of the column-beam frame structure 11.

ピン接合体１６は、第１部材１３に固定された下部１６ａと、シーソー部材１５の長手方向の中央の下面に固定された上部１６ｂとを含み、上部１６ｂが下部１６ａに柱梁架構体１１の構面に直交する軸線部２０回りに回転可能に支持される。このため、シーソー部材１５は、第１部材１３に対して軸線部２０回りに回転可能である。ピン接合体１６は、例えばクレビスによって構成されてもよい。 The pin assembly 16 includes a lower part 16a fixed to the first member 13 and an upper part 16b fixed to the lower surface of the longitudinal center of the seesaw member 15. It is rotatably supported around an axis 20 perpendicular to the structural surface. Therefore, the seesaw member 15 is rotatable around the axis portion 20 with respect to the first member 13 . The pin joint 16 may be constituted by, for example, a clevis.

１対のダンパー１７は、ピン接合体１６を挟むように配置され、それぞれ、下端部にて第１部材１３に固定され、上端部にてシーソー部材１５の長手方向の相反する端部の下面に固定される。ダンパー１７は、制振ダンパーであって、例えば、鋼材ダンパー等の履歴型ダンパー、オイルダンパー又は粘弾性ダンパー等である。１対のダンパー１７は、互いに同じものでも異なるものでもよい。 The pair of dampers 17 are arranged so as to sandwich the pin assembly 16, are fixed to the first member 13 at their lower ends, and are attached at their upper ends to the lower surface of opposite ends of the seesaw member 15 in the longitudinal direction. Fixed. The damper 17 is a vibration damper, and is, for example, a hysteretic damper such as a steel damper, an oil damper, or a viscoelastic damper. The pair of dampers 17 may be the same or different.

第１タイロッド１８は、互いの遠位側の端部がフォーク状に形成された２つの鋼棒１８ａ，１８ｂと、２つの鋼棒１８ａ，１８ｂの互いに近接する側の端部を互いに連結するクロスターンバックル２１とを含む。クロスターンバックル２１は貫通孔２１ａを有する。第１タイロッド１８の下端部は、シーソー部材１５の長手方向の一方の端部（図の左端部）に柱梁架構体１１の構面に直交する軸線回りに回転可能に接合する。第１タイロッド１８の上端部は、柱梁架構体１１における図の右側の柱部材１２と第２部材１４の右端部とによって形成される隅部にガセットプレート２２を介して柱梁架構体１１の構面に直交する軸線回りに回転可能に接合する。 The first tie rod 18 includes two steel rods 18a and 18b whose distal ends are formed in a fork shape, and a cross connecting the ends of the two steel rods 18a and 18b that are close to each other. A turnbuckle 21 is included. The cross turn buckle 21 has a through hole 21a. The lower end of the first tie rod 18 is rotatably joined to one end of the seesaw member 15 in the longitudinal direction (the left end in the figure) about an axis perpendicular to the structural surface of the column-beam frame structure 11 . The upper end of the first tie rod 18 is connected to the corner of the column and beam frame structure 11 formed by the column member 12 on the right side of the figure and the right end of the second member 14 through a gusset plate 22. It is joined so that it can rotate around an axis perpendicular to the structural surface.

第２タイロッド１９は、互いの遠位側の端部がフォーク状に形成された２つの鋼棒１９ａ，１９ｂと、２つの鋼棒１９ａ，１９ｂの互いに近接する側の端部を互いに連結するターンバックル２３とを含む。第２タイロッド１９の下端部は、シーソー部材１５の長手方向の他方の端部（図の右端部）に柱梁架構体１１の構面に直交する軸線回りに回転可能に接合する。第２タイロッド１９の上端部は、柱梁架構体１１における図の左側の柱部材１２と第２部材１４の左端部とによって形成される隅部にガセットプレート２２を介して柱梁架構体１１の構面に直交する軸線回りに回転可能に接合する。第２タイロッド１９における下側の鋼棒１９ｂがクロスターンバックル２１の貫通孔２１ａを貫通している。 The second tie rod 19 includes two steel rods 19a and 19b whose distal ends are formed in a fork shape, and a turn that connects mutually adjacent ends of the two steel rods 19a and 19b. buckle 23. The lower end of the second tie rod 19 is rotatably joined to the other longitudinal end of the seesaw member 15 (the right end in the figure) about an axis perpendicular to the structural surface of the column-beam frame structure 11 . The upper end of the second tie rod 19 is connected to the corner of the column and beam frame structure 11 formed by the column member 12 on the left side of the figure and the left end of the second member 14 via a gusset plate 22. It is joined so that it can rotate around an axis perpendicular to the structural surface. The lower steel rod 19b of the second tie rod 19 passes through the through hole 21a of the cross turn buckle 21.

貫通孔２１ａ、すなわち、第１タイロッド１８及び第２タイロッド１９の交差部は、上下方向においてピン接合体１６の軸線部２０に整合し、第１部材１３と第２部材１４との間の中央よりも下方に位置する。また、軸線部２０から第１タイロッド１８とシーソー部材１５との互いの接合部までの距離は、軸線部２０から第２タイロッド１９とシーソー部材１５との互いの接合部までの距離に等しい。第１タイロッド１８とシーソー部材１５との互いの接合部及び第２タイロッド１９とシーソー部材１５との互いの接合部は、１対のダンパー１７とシーソー部材１５との互いの連結部に上下方向において整合することが好ましい。 The through hole 21a, that is, the intersection of the first tie rod 18 and the second tie rod 19 is aligned with the axis 20 of the pin assembly 16 in the vertical direction, and is located from the center between the first member 13 and the second member 14. is also located below. Further, the distance from the axis 20 to the joint between the first tie rod 18 and the seesaw member 15 is equal to the distance from the axis 20 to the joint between the second tie rod 19 and the seesaw member 15. The joint between the first tie rod 18 and the seesaw member 15 and the joint between the second tie rod 19 and the seesaw member 15 are located at the joint between the pair of dampers 17 and the seesaw member 15 in the vertical direction. Preferably, they match.

地震時に第２部材１４が第１部材１３に対して図１の右方に向かう地震力（慣性力）を受けると、１対の柱部材１２が右に傾くように第２部材１４が第１部材１３に対して平行移動し、柱梁架構体１１は平行四辺形に変形する。変形した柱梁架構体１１では変形前に比べて、右上隅と左下隅とを結ぶ対角線が長くなり、左上隅と右下隅とを結ぶ対角線が短くなる。柱梁架構体１１の右上隅と左下隅とを結ぶ対角線が長くなるため、第１タイロッド１８に引張力が生じ、この引張力が地震力に抵抗する方向に柱梁架構体１１に作用する。また、第１タイロッド１８に生じた引張力によってが、シーソー部材１５が軸線部２０回りに時計回りに回転する。この回転は、第２タイロッド１９の下端部が接合したシーソー部材１５の右端部を下降させる。このシーソー部材１５の動きによる第２タイロッド１９を伸長させる方向の変位量が、柱梁架構体１１の左上隅と右下隅とを結ぶ対角線が短くなることによる第２タイロッド１９を圧縮させる方向の変位量に概ね等しいため、第２タイロッド１９の長さは非地震時の長さと略変わらず、第２タイロッド１９に圧縮力が加わることが抑制される。 When the second member 14 receives an earthquake force (inertia force) directed to the right in FIG. The column-beam frame structure 11 is moved in parallel to the member 13 and deformed into a parallelogram. In the deformed column-beam frame structure 11, the diagonal line connecting the upper right corner and the lower left corner becomes longer, and the diagonal line connecting the upper left corner and the lower right corner becomes shorter than before the deformation. Since the diagonal line connecting the upper right corner and the lower left corner of the column-beam frame 11 becomes longer, a tensile force is generated in the first tie rod 18, and this tensile force acts on the column-beam frame 11 in a direction that resists the seismic force. Further, due to the tensile force generated in the first tie rod 18, the seesaw member 15 rotates clockwise around the axis portion 20. This rotation lowers the right end of the seesaw member 15 to which the lower end of the second tie rod 19 is connected. The amount of displacement in the direction of extending the second tie rod 19 due to the movement of the seesaw member 15 is the displacement in the direction of compressing the second tie rod 19 due to the shortening of the diagonal line connecting the upper left corner and the lower right corner of the column-beam frame structure 11. Since the length of the second tie rod 19 is substantially equal to the length of the second tie rod 19 during non-earthquake, the application of compressive force to the second tie rod 19 is suppressed.

続いて、地震の振動方向が変化し、第２部材１４が第１部材１３に対して図１の左方に向かう地震力を受けると、柱部材１２が右に傾いた状態から鉛直の状態に戻る間も、ダンパー１７からの減衰力によって、第２タイロッド１９に引張力が生じ、この引張力が柱梁架構体１１に対して地震力に抵抗する方向に作用する。 Subsequently, when the vibration direction of the earthquake changes and the second member 14 receives an earthquake force directed to the left in FIG. While returning, a tensile force is generated in the second tie rod 19 due to the damping force from the damper 17, and this tensile force acts on the column-beam frame structure 11 in a direction that resists the seismic force.

柱部材１２が左に傾くと、変形した柱梁架構体１１では変形前に比べて、左上隅と右下隅とを結ぶ対角線が長くなり、右上隅と左下隅とを結ぶ対角線が短くなる。柱梁架構体１１の左上隅と右下隅とを結ぶ対角線が長くなるため、第２タイロッド１９に引張力が生じ、この引張力が地震力に抵抗する方向に柱梁架構体１１に作用する。また、第２タイロッド１９に生じた引張力によって、シーソー部材１５が軸線部２０回りに反時計回りに回転する。この回転は、第１タイロッド１８の下端部が接合したシーソー部材１５の左端部を下降させる。このシーソー部材１５の動きによる第１タイロッド１８を伸長させる方向の変位量が、柱梁架構体１１の右上隅と左下隅とを結ぶ対角線が短くなることによる第１タイロッド１８を圧縮させる方向の変位量に概ね等しいため、第１タイロッド１８の長さは非地震時の長さと略変わらず、第１タイロッド１８に圧縮力が加わることが抑制される。 When the column member 12 tilts to the left, in the deformed column-beam frame structure 11, the diagonal line connecting the upper left corner and the lower right corner becomes longer and the diagonal line connecting the upper right corner and the lower left corner becomes shorter than before the deformation. Since the diagonal line connecting the upper left corner and the lower right corner of the column-beam frame 11 becomes longer, a tensile force is generated in the second tie rod 19, and this tensile force acts on the column-beam frame 11 in a direction that resists the seismic force. Further, the tensile force generated in the second tie rod 19 causes the seesaw member 15 to rotate counterclockwise around the axis portion 20. This rotation lowers the left end of the seesaw member 15 to which the lower end of the first tie rod 18 is connected. The amount of displacement in the direction of extending the first tie rod 18 due to the movement of the seesaw member 15 is the displacement in the direction of compressing the first tie rod 18 due to the shortening of the diagonal line connecting the upper right corner and the lower left corner of the column-beam frame structure 11. Since the length of the first tie rod 18 is substantially equal to the length of the first tie rod 18 during a non-earthquake, the compressive force is suppressed from being applied to the first tie rod 18.

続いて、地震の振動方向が変化し、第２部材１４が第１部材１３に対して図１の右方に向かう地震力を受けると、柱部材１２が左に傾いた状態から鉛直の状態に戻る間も、ダンパー１７からの減衰力によって、第１タイロッド１８に引張力が生じ、この引張力が柱梁架構体１１に対して地震力に抵抗する方向に作用する。 Subsequently, when the vibration direction of the earthquake changes and the second member 14 receives an earthquake force directed to the right in FIG. While returning, a tensile force is generated in the first tie rod 18 due to the damping force from the damper 17, and this tensile force acts on the column-beam frame structure 11 in a direction that resists the seismic force.

制振装置１０は、地震時に以上のような動きを繰り返す。 The vibration damping device 10 repeats the above-described movements during an earthquake.

１対のダンパー１７はシーソー部材１５に回転に抵抗する方向に力を加えるため、１対のダンパー１７は、シーソー部材１５並びに第１タイロッド１８及び第２タイロッド１９を介して、柱梁架構体１１に制振力を加える。 Since the pair of dampers 17 apply force to the seesaw member 15 in a direction that resists rotation, the pair of dampers 17 apply force to the column-beam frame structure 11 via the seesaw member 15 and the first tie rod 18 and second tie rod 19. Add damping force to.

上述のように、地震時に第１タイロッド１８及び第２タイロッド１９に圧縮力が加わることが抑制される。しかし、地震時に第１タイロッド１８及び第２タイロッド１９にわずかに圧縮力が加わるおそれがあるので、あらかじめ、第１タイロッド１８及び第２タイロッド１９の双方に引張力を導入しておくことが望ましい。この引張力の値は、地震時に第１タイロッド１８及び第２タイロッド１９に加わるおそれのある圧縮力よりも大きく設定される。図２及び図３を参照して、第１タイロッド１８及び第２タイロッド１９への引張力の導入手順について説明する。 As described above, compressive force is suppressed from being applied to the first tie rod 18 and the second tie rod 19 during an earthquake. However, since there is a risk that a slight compressive force will be applied to the first tie rod 18 and the second tie rod 19 during an earthquake, it is desirable to introduce tensile force to both the first tie rod 18 and the second tie rod 19 in advance. The value of this tensile force is set to be larger than the compressive force that may be applied to the first tie rod 18 and the second tie rod 19 during an earthquake. With reference to FIGS. 2 and 3, a procedure for introducing tensile force to the first tie rod 18 and the second tie rod 19 will be described.

図２に示すように、作業員は、ピン接合体１６、シーソー部材１５、１対のダンパー１７及びガセットプレート２２を柱梁架構体１１に設置する。 As shown in FIG. 2, a worker installs the pin assembly 16, the seesaw member 15, the pair of dampers 17, and the gusset plate 22 on the column-beam frame structure 11.

次に、図３に示すように、作業員は、第１タイロッド１８の上端部を柱梁架構体１１の右上隅のガセットプレート２２にピン接合し、第２タイロッド１９をクロスターンバックル２１の貫通孔２１ａに挿通し、第２タイロッド１９の両端部をそれぞれシーソー部材１５の右端部及び柱梁架構体１１の左上のガセットプレート２２にピン接合する。この時、第２タイロッド１９は、設置完了後の長さよりも短い長さを有し、シーソー部材１５は右端部が上昇するように傾いた状態にある。導入する引張力に基づき、第１タイロッド１８及び第２タイロッド１９の伸縮量が算定されており、必要に応じて、設置完了後に所定値の引張力が得られるとともにシーソー部材１５が第１部材１３に平行になるように、ターンバックル２３を回転させて、第２タイロッド１９の長さ及びシーソー部材１５の傾きを調整する。 Next, as shown in FIG. The second tie rod 19 is inserted through the hole 21a, and both ends of the second tie rod 19 are pin-joined to the right end of the seesaw member 15 and the upper left gusset plate 22 of the column-beam frame structure 11, respectively. At this time, the second tie rod 19 has a length shorter than the length after the installation is completed, and the seesaw member 15 is in an inclined state such that the right end portion thereof is raised. The amount of expansion and contraction of the first tie rod 18 and the second tie rod 19 is calculated based on the tensile force to be introduced, and if necessary, after the installation is completed, a predetermined tensile force is obtained and the seesaw member 15 is moved to the first member 13. The length of the second tie rod 19 and the inclination of the seesaw member 15 are adjusted by rotating the turnbuckle 23 so that the second tie rod 19 is parallel to the second tie rod 19.

作業員は、ジャッキ２４によって、第１タイロッド１８の下端部を引っ張ることにより第１タイロッド１８に引張力を導入し、第１タイロッド１８の下端部をシーソー部材１５の左端部にピン接合する。この時、シーソー部材１５が時計回りに回転して第１部材１３と平行になり、第１タイロッド１８及び第２タイロッド１９に互いに略等しい引張力が導入される。シーソー部材１５の第１部材１３に対する平行精度を確保できなかった場合には、作業員は、第１タイロッド１８の下端部のシーソー部材１５の左端部への接合を解除し、ターンバックル２３を回転させてシーソー部材１５の傾きを調整した後、第１タイロッド１８への引張力の導入及びシーソー部材１５への接合をやり直す。作業員がジャッキ２４を第１タイロッド１８から取り外すことにより、制振装置１０の設置が完了する。ジャッキ２４として、センターホールジャッキ等を使用できる。ジャッキ２４をシーソー部材１５に取り付けて第１タイロッド１８をジャッキ２４で引っ張る時の反力をシーソー部材１５からとれば、ジャッキ２４によって第１タイロッド１８に導入される引張力は、設置完了後の第１タイロッド１８に生じる引張力に等しい。第１タイロッド１８をジャッキ２４で引っ張るときの反力を第１部材１３からとれば、ジャッキ２４によって第１タイロッド１８に導入される引張力は、設置完了後の第１タイロッド１８に生じる引張力よりも大きく、第１タイロッド１８をシーソー部材１５に接合後、シーソー部材１５が回転して、第１タイロッド１８に生じている引張力が減少し、第２タイロッド１９に引張力が生じる。 The worker applies tensile force to the first tie rod 18 by pulling the lower end of the first tie rod 18 using the jack 24, and pin-joins the lower end of the first tie rod 18 to the left end of the seesaw member 15. At this time, the seesaw member 15 rotates clockwise to become parallel to the first member 13, and approximately equal tensile forces are introduced into the first tie rod 18 and the second tie rod 19. If the parallel accuracy of the seesaw member 15 with respect to the first member 13 cannot be ensured, the worker releases the connection of the lower end of the first tie rod 18 to the left end of the seesaw member 15 and rotates the turnbuckle 23. After adjusting the inclination of the seesaw member 15, the tensile force is applied to the first tie rod 18 and the joining to the seesaw member 15 is redone. When the worker removes the jack 24 from the first tie rod 18, installation of the vibration damping device 10 is completed. As the jack 24, a center hole jack or the like can be used. If the jack 24 is attached to the seesaw member 15 and the reaction force when the first tie rod 18 is pulled by the jack 24 is taken from the seesaw member 15, the tensile force introduced to the first tie rod 18 by the jack 24 will be 1 is equal to the tensile force generated on the tie rod 18. If the reaction force when the first tie rod 18 is pulled by the jack 24 is taken from the first member 13, the tensile force introduced into the first tie rod 18 by the jack 24 is greater than the tensile force generated in the first tie rod 18 after installation is completed. After the first tie rod 18 is joined to the seesaw member 15, the seesaw member 15 rotates, the tensile force generated in the first tie rod 18 decreases, and a tensile force occurs in the second tie rod 19.

このように、ジャッキ２４を用いることにより、十分な引張力を導入できる。また、第２タイロッド１９をジャッキ２４で引っ張らなくとも、第１タイロッド１８をジャッキ２４で引っ張ることにより、第２タイロッド１９にも引張力が導入されるため、簡便に引張力を導入することができる。 In this way, by using the jack 24, sufficient tensile force can be introduced. Further, even if the second tie rod 19 is not pulled by the jack 24, by pulling the first tie rod 18 with the jack 24, a tensile force is also introduced into the second tie rod 19, so the tensile force can be easily introduced. .

以上で具体的実施形態の説明を終えるが、本発明は上記実施形態に限定されることなく幅広く変形実施することができる。第２部材が第１部材の下方に設置された梁部材でもよく、第１部材及び第２部材が柱部材であってもよい。クロスターンバックルは、第１タイロッドではなく第２タイロッドに設けられて、第１タイロッドがクロスターンバックルの貫通孔を貫通していてもよい。また、クロスターンバックルを設けず、単に、第１タイロッド及び第２タイロッドが、柱梁架構体の構面に直交する方向に互いにわずかにずれて配置されてもよい。第１タイロッドの下端部をシーソー部材にピン接合した後、第１タイロッドの上端部をジャッキで引っ張って該上端部をガセットプレートにピン接合してもよい。１対のダンパーは、第１及び第２タイロッドに引張力を導入した後に設置してもよい。 Although the description of the specific embodiments has been completed above, the present invention is not limited to the above-mentioned embodiments and can be widely modified and implemented. The second member may be a beam member installed below the first member, and the first member and the second member may be pillar members. The cross turn buckle may be provided on the second tie rod instead of the first tie rod, and the first tie rod may pass through the through hole of the cross turn buckle. Alternatively, the first tie rod and the second tie rod may be simply arranged to be slightly shifted from each other in a direction perpendicular to the structural surface of the column-beam frame structure without providing a cross-turn buckle. After the lower end of the first tie rod is pin-joined to the seesaw member, the upper end of the first tie rod may be pulled with a jack to join the upper end to the gusset plate. The pair of dampers may be installed after introducing tensile force to the first and second tie rods.

１０：制振装置
１１：柱梁架構体
１２：柱部材
１３：第１部材（下層の梁部材）
１４：第２部材（上層の梁部材）
１５：シーソー部材
１６：ピン接合体
１７：ダンパー
１８：第１タイロッド
１９：第２タイロッド
２０：軸線部
２３：ターンバックル
２４：ジャッキ 10: Vibration damping device 11: Column beam frame structure 12: Column member 13: First member (lower layer beam member)
14: Second member (upper layer beam member)
15: Seesaw member 16: Pin assembly 17: Damper 18: First tie rod 19: Second tie rod 20: Axis line portion 23: Turnbuckle 24: Jack

Claims (3)

柱及び梁の一方を構成して互いに対向する第１部材及び第２部材を含む柱梁架構体に対して前記第１部材に平行な所定方向に長さを有するシーソー部材と、前記シーソー部材における前記所定方向の中間部及び前記第１部材に接合して、前記シーソー部材を前記第１部材に対して前記柱梁架構体の構面に直交する軸線方向回りに回転可能にするピン接合体と、制振力を加えるべく前記シーソー部材及び前記第１部材に連結したダンパーと、一端部が前記シーソー部材における前記所定方向の一端部に前記軸線方向回りに回転可能に接合され、他端部が前記柱梁架構体における前記第２部材の一端側の隅部に前記軸線方向回りに回転可能に接合された第１タイロッドと、前記第１タイロッドに交差するように配置され、一端部が前記シーソー部材における前記所定方向の他端部に前記軸線方向回りに回転可能に接合され、他端部が前記柱梁架構体における前記第２部材の他端側の隅部に前記軸線方向回りに回転可能に接合された第２タイロッドとを備える制振装置において、前記第１タイロッド及び前記第２タイロッドに引張力を導入する方法であって、
前記ピン接合体及び前記シーソー部材を前記柱梁架構体に設置するステップと、
前記第１タイロッド及び前記第２タイロッドを前記シーソー部材及び対応する前記隅部に接合するステップと、
前記接合するステップの前又は後に、前記ダンパーを前記シーソー部材及び前記第１部材に連結するステップとを備え、
前記接合するステップは、前記第２タイロッドが前記シーソー部材及び前記隅部に接合し、前記シーソー部材が設置完了後の姿勢に対して前記第２タイロッドが短くなる向きに傾き、かつ、前記第１タイロッドの前記一端部及び前記他端部の一方が前記シーソー部材又は対応する前記隅部に連結した状態で、ジャッキによって前記第１タイロッドの前記一端部及び前記他端部の他方を引っ張ることにより前記第１タイロッドに引張力を導入して、前記第１タイロッドの前記一端部及び前記他端部の前記他方を対応する前記隅部又は前記シーソー部材に連結することを含むことを特徴とする方法。 a seesaw member having a length in a predetermined direction parallel to the first member with respect to a column-beam frame structure including a first member and a second member facing each other and forming one of a column and a beam; a pin joint that is joined to the intermediate portion in the predetermined direction and the first member to enable the seesaw member to rotate relative to the first member around an axial direction perpendicular to a structural surface of the column-beam frame structure; , a damper connected to the seesaw member and the first member to apply a damping force, one end of which is rotatably joined to one end of the seesaw member in the predetermined direction about the axial direction, and the other end of which is connected to the seesaw member and the first member; a first tie rod rotatably joined to a corner of the second member in the column-beam frame structure on one end side; The member is rotatably joined to the other end of the member in the predetermined direction about the axial direction, and the other end is rotatable about the axial direction to a corner of the column-beam frame on the other end side of the second member. A method for introducing a tensile force into the first tie rod and the second tie rod in a vibration damping device comprising: a second tie rod joined to the first tie rod;
installing the pin assembly and the seesaw member on the column-beam frame structure;
joining the first tie rod and the second tie rod to the seesaw member and the corresponding corner;
Before or after the joining step, a step of connecting the damper to the seesaw member and the first member,
In the joining step, the second tie rod is joined to the seesaw member and the corner, and the seesaw member is tilted in a direction in which the second tie rod becomes shorter with respect to the posture after installation is completed, and the first With one of the one end and the other end of the tie rod connected to the seesaw member or the corresponding corner, the other of the one end and the other end of the first tie rod is pulled by a jack. A method comprising: introducing a tensile force into a first tie rod to connect the other of the one end and the other end of the first tie rod to the corresponding corner or the seesaw member. 前記第２タイロッドはターンバックルを含み、
前記接合するステップは、前記シーソー部材が設置完了後に所望の姿勢となるように、前記第１タイロッドに引張力が加わっていない状態で前記ターンバックルを回して前記第２タイロッドの長さ及び前記シーソー部材の傾きを調整することを含むことを特徴とする請求項１に記載の方法。 the second tie rod includes a turnbuckle;
The joining step includes adjusting the length of the second tie rod and the seesaw member by turning the turnbuckle while no tensile force is applied to the first tie rod so that the seesaw member assumes a desired posture after installation is completed. 2. The method of claim 1, including adjusting the tilt of the member. 前記第１タイロッドの前記一端部及び前記他端部の前記他方は、前記シーソー部材に接合する前記一端部であり、
前記接合するステップは、前記第１タイロッドに引張力を導入するときの反力が前記シーソー部材に加わるように、前記ジャッキを前記シーソー部材に取り付け、引張力の導入後に前記ジャッキを前記シーソー部材から取り外すことを含むことを特徴とする請求項１又は２に記載の方法。 The other of the one end and the other end of the first tie rod is the one end that is joined to the seesaw member,
The joining step includes attaching the jack to the seesaw member so that a reaction force when introducing a tensile force to the first tie rod is applied to the seesaw member, and removing the jack from the seesaw member after introducing the tensile force. 3. A method according to claim 1 or 2, characterized in that it comprises removing.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009236245A (en) 2008-03-27 2009-10-15 Nippon Steel Corp Turnbuckle of shape memory alloy and axial force introduction method of rod using it
WO2010116779A1 (en) 2009-03-30 2010-10-14 国立大学法人名古屋大学 Vibration control device for beam frame body

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Publication number Priority date Publication date Assignee Title
JP4591891B2 (en) * 2006-07-11 2010-12-01 株式会社日本衛生センター Tensile member fixture and tension member with fixture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009236245A (en) 2008-03-27 2009-10-15 Nippon Steel Corp Turnbuckle of shape memory alloy and axial force introduction method of rod using it
WO2010116779A1 (en) 2009-03-30 2010-10-14 国立大学法人名古屋大学 Vibration control device for beam frame body

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