JP2012246675A - Joint structure of vibration control brace - Google Patents

Joint structure of vibration control brace Download PDF

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JP2012246675A
JP2012246675A JP2011119133A JP2011119133A JP2012246675A JP 2012246675 A JP2012246675 A JP 2012246675A JP 2011119133 A JP2011119133 A JP 2011119133A JP 2011119133 A JP2011119133 A JP 2011119133A JP 2012246675 A JP2012246675 A JP 2012246675A
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roller support
gusset plate
support member
brace
vibration
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JP6074132B2 (en
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Yuki Okamoto
勇紀 岡本
Takahisa Mori
貴久 森
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Daiwa House Industry Co Ltd
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Daiwa House Industry Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a joint structure of a vibration control brace such as a buckling restraining brace and a brace with a damper, in which a long-term load is not input to the vibration control brace.SOLUTION: In a joint structure of vibration control brace, the tip of a vibration control brace 1 is joined to a beam 30 or both of a column and the beam through a gusset plate 2. A space G is included between the gusset plate 2 and the top surface or the bottom surface of the beam 30. The gusset plate 2 is supported to be slidable in a vertical direction by a roller bearing member 3 fixed to the beam 30 or to both of the column and the beam.

Description

この発明は、座屈拘束ブレースやダンバ−付きブレース等の制振用のブレースの先端を、ガセットプレートを介して、梁、または梁と柱の両方に接合する制振ブレース接合構造に関する。   The present invention relates to a vibration-damping brace joining structure in which the tip of a vibration-damping brace such as a buckling restrained brace or a brace with a damper is joined to a beam or both a beam and a column via a gusset plate.

建築物に使用される斜材として、建築物に作用する地震や風等による外力に抵抗する制振用のブレースが知られている。制振用のブレースとしては、座屈拘束ブレースやダンパー装置付きブレース等が用いられる。この制振用のブレースは、本来、長期荷重を入力させない状態で、外力が作用することを前提としている。   As an oblique material used for a building, a bracing for vibration control that resists external force due to an earthquake or wind acting on the building is known. As the vibration suppression brace, a buckling restrained brace, a brace with a damper device, or the like is used. This vibration brace is premised on the assumption that an external force acts in a state where a long-term load is not input.

特開２０１０−１８９５１号公報JP 2010-18951 A 特開２００９−２４９８３３号公報JP 2009-249833 A

制振用のブレースは、歪みゼロの状態から外力（地震、風圧、その他）を受けて行くという前提で設計され、長期荷重をブレースに入力してはならない。しかし、この条件は、実際の施工においては必ずしも具現化されていない。すなわち、固定荷重に関しては、例えばブレースの先端の接合部における高力ボルトの本締めを、床スラブコンクリートの打設後に行うことで具現化されている。しかし、積載荷重に関しては、現実的な解決策がなく、特に対策が取られていないのが現状である。積載荷重が小さいホテルや事務所などの建築物の場合には、制振用のブレースに入力される長期荷重は無視できるレベルであるとも考えられる。しかし、倉庫などの物流施設のような建築物に入力される大きな積載荷重や、多雪地帯の建築物に入力される積雪荷重などは無視できないレベルのものとなっている。   Brakes for vibration control are designed on the assumption that external force (earthquake, wind pressure, etc.) will be applied from zero distortion, and long-term loads should not be input to the braces. However, this condition is not necessarily realized in actual construction. That is, the fixed load is embodied by, for example, performing a final tightening of the high-strength bolt at the joint portion at the tip of the brace after placing the floor slab concrete. However, with regard to the load capacity, there is no realistic solution, and no particular measures have been taken. In the case of a building such as a hotel or office where the load capacity is small, it can be considered that the long-term load input to the bracing for vibration control is at a negligible level. However, large carrying loads input to buildings such as warehouses and other logistic facilities and snow loads input to buildings in heavy snow areas are at a level that cannot be ignored.

この発明の目的は、制振ブレースに長期荷重を入力させない制振ブレース接合構造を提供することである。   An object of the present invention is to provide a vibration-damping brace joint structure that does not allow a long-term load to be input to the vibration-damping brace.

この発明の制振ブレース接合構造は、制振用のブレースの先端を、ガセットプレートを介して、梁、または柱と梁の両方に接合する制振ブレース接合構造であって、前記ガセットプレートと、前記梁の下面または上面との間に隙間を介在させ、前記梁に固定され、または柱と梁の両方に固定されたローラ支持部材により、前記ガセットプレートを鉛直方向に滑動自在に支持したことを特徴とする。前記制振用のブレースは、座屈拘束ブレースであっても良いし、中間部にダンパー装置を介在させたものであっても良い。   The vibration-damping brace joint structure of the present invention is a vibration-damping brace joint structure in which the tip of a brace for vibration damping is joined to a beam or both a column and a beam via a gusset plate, and the gusset plate, A gap is interposed between the lower surface or the upper surface of the beam, and the gusset plate is slidably supported in a vertical direction by a roller support member fixed to the beam or fixed to both the column and the beam. Features. The vibration-damping brace may be a buckling-restrained brace or a damper device interposed in the middle.

この構造によると、ガセットプレートは梁や柱に直接に接合されず、梁との間に隙間が設けられて、ローラ支持部材によって、鉛直方向に滑動自在なローラ支持構造で支持されている。そのため、積載荷重や多雪地帯における積雪荷重等の長期荷重により梁の上下方向の撓みが生じても、その撓みが前記ローラ支持部材とガセットプレートの間の滑動で逃がされ、制振ブレースには長期荷重が作用しない。ガセットプレートは、ローラ支持部材によって鉛直方向に滑動自在なローラ支持構造で支持されるが、ブレースからの水平力は、ガセットプレートからローラ支持部材に伝達され、梁に伝えられる。したがって、上記ローラ支持構造であっても、制振用のブレースとしての機能が損なわれることがない。   According to this structure, the gusset plate is not directly joined to the beam or the column, and a gap is provided between the gusset plate and the beam, and the gusset plate is supported by the roller support structure that is slidable in the vertical direction by the roller support member. Therefore, even if the beam is bent in the vertical direction due to a long-term load such as a loaded load or a snow load in a heavy snowy area, the deflection is released by the sliding between the roller support member and the gusset plate, and the vibration suppression brace The long-term load does not work. The gusset plate is supported by a roller support structure that is slidable in the vertical direction by the roller support member, but the horizontal force from the brace is transmitted from the gusset plate to the roller support member and is transmitted to the beam. Therefore, even if it is the said roller support structure, the function as a brace for vibration suppression is not impaired.

この発明において、前記ローラ支持部材が梁に固定されたものであって、前記ガセットプレートの両端を支持するものとしても良い。
梁の柱間の中間位置等に制振用のブレースを接合する場合、ガセットプレートは、梁長さ方向の端部となる両端をローラ支持部材で鉛直方向に滑動自在に支持することで、長期荷重による梁の上下方向の撓み等に対して、その撓みをガセットプレートの鉛直方向の滑動で逃がす作用が円滑に行える。 In this invention, the roller support member may be fixed to a beam, and may support both ends of the gusset plate.
When joining damping braces at intermediate positions between beam columns, etc., the gusset plate can support both ends of the beam length direction by slidably supporting in the vertical direction with roller support members. With respect to the vertical deflection of the beam due to the load, etc., it is possible to smoothly release the deflection by the vertical sliding of the gusset plate.

この発明において、柱と梁の接合部に制振用のブレースの先端が接合される場合に、前記ローラ支持部材が柱に固定され、このローラ支持部材で前記ガセットプレートの一端を支持するものとしても良い。   In this invention, when the tip of a vibration brace is joined to the joint between the column and the beam, the roller support member is fixed to the column, and this roller support member supports one end of the gusset plate. Also good.

この発明において、前記ローラ支持部材は、前記梁の幅方向に延びる垂直姿勢の横片と前記梁の長手方向に延びる垂直姿勢の縦片とでなる水平断面がＴ字形のＴ形リブと、このＴ形リブの前記横片から突出し水平断面がＴ字形の案内突部とでなり、前記ガセットプレートに、前記ローラ支持部材の案内突部に対して鉛直方向に滑動自在に係合する受け金具を固定しても良い。
前記ローラ支持部材を前記Ｔ形リブを有する構成とすることで、ブレースからの水平力をガセットプレートからの支圧力で梁に伝えるにつき、必要な強度を確保しながら、ローラ支持部材による鉛直方向に滑動自在なローラ支持構造とできる。 In this invention, the roller support member includes a T-shaped rib having a T-shaped horizontal cross section composed of a horizontal piece in a vertical posture extending in the width direction of the beam and a vertical piece in a vertical posture extending in the longitudinal direction of the beam. A receiving projection that protrudes from the lateral piece of the T-shaped rib and is a guide projection having a T-shaped horizontal section, and is slidably engaged with the guide projection of the roller support member in the vertical direction on the gusset plate. It may be fixed.
Since the roller support member has the T-shaped rib, the horizontal force from the brace is transmitted to the beam by the support pressure from the gusset plate, and the necessary strength is ensured in the vertical direction by the roller support member. A slidable roller support structure can be provided.

この発明において、前記ローラ支持部材は、前記梁の幅方向に延びる垂直姿勢の横片と前記梁の長手方向に延びる垂直姿勢の縦片とを有し、前記横片に縦長のボルト挿通孔を有する水平断面がＴ字形のＴ形リブからなり、前記ガセットプレートに、前記ローラ支持部材を構成するＴ形リブの横片に対面し、前記横片のボルト挿通孔に整合する縦長のボルト挿通孔を有する接合プレートを固定し、前記横片のボルト挿通孔と前記接合プレートのボルト挿通孔に挿通したボルトでガセットプレートを前記ローラ支持部材に接合しても良い。
この構成の場合も、前記ローラ支持部材を前記Ｔ形リブを有する構成とすることで、ブレースからの水平力をガセットプレートからの支圧力で梁に伝えるにつき、必要な強度を確保しながら、ローラ支持部材による鉛直方向に滑動自在なローラ支持構造とできる。 In this invention, the roller support member has a horizontal piece in a vertical posture extending in the width direction of the beam and a vertical piece in a vertical posture extending in the longitudinal direction of the beam, and a vertical bolt insertion hole is formed in the horizontal piece. A vertically long bolt insertion hole that has a T-shaped rib having a T-shaped horizontal cross section, faces the horizontal piece of the T-shaped rib constituting the roller support member, and aligns with the bolt insertion hole of the horizontal piece. The gusset plate may be joined to the roller support member with a bolt inserted through the bolt insertion hole of the horizontal piece and the bolt insertion hole of the joining plate.
Also in this configuration, the roller support member is configured to have the T-shaped rib so that the horizontal force from the brace is transmitted to the beam by the support pressure from the gusset plate, while ensuring the necessary strength, the roller A roller support structure that is slidable in the vertical direction by the support member can be obtained.

なお、前記制振用のブレースは座屈拘束ブレースであっても良いし、中間部にダンパー装置を介在させたものであっても良い。   The vibration-damping brace may be a buckling-restrained brace or a damper device interposed in the middle.

この発明の制振ブレース接合構造は、制振用のブレースの先端を、ガセットプレートを介して、梁、または柱と梁の両方に接合する制振ブレース接合構造であって、前記ガセットプレートと、前記梁の下面または上面との間に隙間を介在させ、前記梁に固定され、または柱と梁の両方に固定されたローラ支持部材により、前記ガセットプレートを鉛直方向に滑動自在に支持したため、制振用のブレースに長期荷重が入力せず、かつブレースを地震や風などの水平方向の外力に抵抗する斜材として有効に働かせることができる。   The vibration-damping brace joint structure of the present invention is a vibration-damping brace joint structure in which the tip of a brace for vibration damping is joined to a beam or both a column and a beam via a gusset plate, and the gusset plate, A gap is interposed between the lower surface or the upper surface of the beam, and the gusset plate is slidably supported in the vertical direction by a roller support member fixed to the beam or fixed to both the column and the beam. A long-term load is not input to the diversion brace, and the brace can be effectively used as a diagonal material that resists horizontal external forces such as earthquakes and winds.

この発明の一実施形態にかかる制振ブレース接合構造が適用されるＫ型ブレースを組み込んだ架構体の概略正面図である。1 is a schematic front view of a frame body incorporating a K-type brace to which a vibration-damping brace joint structure according to an embodiment of the present invention is applied. 同制振ブレース接合構造を示す正面図である。It is a front view which shows the vibration damping brace joining structure. 同制振ブレース接合構造の一例を示す部分拡大正面図である。It is a partial expanded front view which shows an example of the vibration damping brace joining structure. 同制振ブレース接合構造の一例の部分拡大水平断面図である。It is a partial expanded horizontal sectional view of an example of the damping brace joining structure. （Ａ）は同制振ブレース接合構造に用いられる制振用のブレースの一例であ る座屈拘束ブレースの斜視図、（Ｂ）は同座屈拘束ブレースの断面図である。(A) is a perspective view of a buckling-restrained brace that is an example of a vibration-suppressing brace used in the vibration-damping brace joint structure, and (B) is a cross-sectional view of the buckling-restraining brace. 同制振ブレース接合構造に用いられる制振用のブレースの他の例を示す正面図である。It is a front view which shows the other example of the brace for vibration suppression used for the vibration suppression brace joining structure. 同制振ブレース接合構造の他の例を示す部分拡大正面図である。It is a partial expanded front view which shows the other example of the damping brace joining structure. 同制振ブレース接合構造の他の例を示す部分拡大水平断面図である。It is a partial expanded horizontal sectional view which shows the other example of the damping brace joining structure. この発明の他の実施形態にかかる制振ブレース接合構造が適用されるＶ型ブレースを組み込んだ架構体の正面図である。FIG. 6 is a front view of a frame body incorporating a V-type brace to which a vibration-damping brace joint structure according to another embodiment of the present invention is applied. 同制振ブレース接合構造を示す正面図である。It is a front view which shows the vibration damping brace joining structure. この発明のさらに他の実施形態にかかる制振ブレース接合構造を示す正面図である。It is a front view which shows the damping brace joining structure concerning further another embodiment of this invention.

この発明の一実施形態を図１ないし図８と共に説明する。図１は、この実施形態の制振ブレース接合構造が適用されるＫ型ブレースを組み込んだ鉄骨の架構体の概略正面図を示す。この架構体は、例えば物流施設の倉庫等の建築物となる架構体である。この例の制振ブレース接合構造は、同図のＡ部に示すように、２本の制振用のブレース１，１の上側の先端が、１つのガセットプレート２を介して、梁３０の中央位置の下面で接合される部分に適用される。図２は、図１におけるＡ部を拡大して示す。   An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic front view of a steel frame structure incorporating a K-type brace to which the vibration-damping brace joint structure of this embodiment is applied. This frame is a frame that is a building such as a warehouse of a logistics facility, for example. In this example, as shown in part A of the figure, the upper end of the two damping braces 1 and 1 is connected to the center of the beam 30 via one gusset plate 2. It is applied to the part to be joined at the lower surface of the position. FIG. 2 is an enlarged view of a portion A in FIG.

この制振ブレース接合構造では、前記ガセットプレート２と、梁３０の下面との間に隙間Ｇを介在させ、梁３０の下面に固定された２つのローラ支持部材３，３により、ガセットプレート２の左右両端を鉛直方向に滑動自在に支持している。隙間Ｇは、架構体の構築時には生じているが、構築後に、この架構体に想定される長期荷重となる積載荷重が作用して梁３０が撓んだ状態では、ガセットプレート２に梁３０が接触、つまりメタルタッチとなる隙間寸法に設計されている。図３および図４に拡大正面図および拡大水平断面図で示すように、ローラ支持部材３は、梁３０の幅方向に延びる垂直姿勢の横片５と、梁３０の長手方向に延びる垂直姿勢の縦片６とでなる水平断面がＴ字形のＴ形リブ４と、このＴ形リブ４の前記横片５から突出し水平断面がＴ字形の２つの案内突部７とでなる。２つの案内突部７は、梁３０の幅方向に並べて設けられる。Ｔ形リブ４およびＴ字形の案内突部７は、例えばＴ形鋼の切片とされる。ガセットプレート２の前記ローラ支持部材３に対向する左端には、ローラ支持部材３の案内突部７に対して鉛直方向に滑動自在に係合する２つの溝８を有する受け金具９が固定される。溝８の断面形状は、Ｔ字形の２つの案内突部７の断面形状に沿うＴ字形の断面形状である。ガセットプレート２の右端も、図３，４と同様の機構（例えば、図３，４と左右対称の機構）により、もう一方のローラ支持部材３で鉛直方向に滑動自在に支持される。なお、図２および図３では、梁３０とガセットプレート２との間の隙間Ｇを、ハッチングを施して示している。   In this vibration-damping brace joint structure, a gap G is interposed between the gusset plate 2 and the lower surface of the beam 30, and the two roller support members 3 and 3 fixed to the lower surface of the beam 30 are used to The left and right ends are slidably supported in the vertical direction. The gap G is generated at the time of construction of the frame body. After the construction, when the beam 30 is bent due to a load acting as a long-term load assumed on the frame body, the beam 30 is attached to the gusset plate 2. The gap is designed to be a contact, that is, a metal touch. 3 and FIG. 4, the roller support member 3 includes a horizontal piece 5 in a vertical posture extending in the width direction of the beam 30 and a vertical posture extending in the longitudinal direction of the beam 30, as shown in an enlarged front view and an enlarged horizontal sectional view. The horizontal section formed by the vertical piece 6 includes a T-shaped rib 4 having a T-shape, and two guide protrusions 7 projecting from the horizontal piece 5 of the T-shaped rib 4 and having a horizontal section having a T-shape. The two guide protrusions 7 are provided side by side in the width direction of the beam 30. The T-shaped rib 4 and the T-shaped guide projection 7 are, for example, sections of T-shaped steel. At the left end of the gusset plate 2 facing the roller support member 3, a metal fitting 9 having two grooves 8 that are slidably engaged with the guide projection 7 of the roller support member 3 in the vertical direction is fixed. . The cross-sectional shape of the groove 8 is a T-shaped cross-sectional shape along the cross-sectional shape of the two T-shaped guide protrusions 7. The right end of the gusset plate 2 is also slidably supported in the vertical direction by the other roller support member 3 by a mechanism similar to that shown in FIGS. 2 and 3, the gap G between the beam 30 and the gusset plate 2 is indicated by hatching.

図５は、制振用として用いられるブレース１の一例を示す。この制振用のブレース１は座屈拘束ブレースであって、図５（Ａ）に斜視図で、図５（Ｂ）に断面図で示すように、芯材１０と、この芯材１０の両面に沿って一対の拘束材１１，１１を配置してなる。図６は、制振用として用いられるブレース１の他の例を示す。この制振用のブレース１は、２分割されたブレース材１ａの中間位置にダンパー装置１ｂを介在させてなる。   FIG. 5 shows an example of the brace 1 used for vibration suppression. The damping brace 1 is a buckling-restrained brace. As shown in a perspective view in FIG. 5A and a cross-sectional view in FIG. 5B, a core material 10 and both surfaces of the core material 10 are shown. A pair of restraining materials 11 and 11 are arranged along. FIG. 6 shows another example of the brace 1 used for vibration suppression. The vibration-damping brace 1 is formed by interposing a damper device 1b at an intermediate position of the brace material 1a divided into two parts.

この構成の制振ブレース接合構造によると、前記ガセットプレート２と、梁３０の下面との間に隙間Ｇを介在させ、梁３０の下面に固定された２つのローラ支持部材３，３により、ガセットプレート２の左右両端を鉛直方向に滑動自在に支持している。そのため、積載荷重や多雪地帯における積雪荷重等の長期荷重により梁３０に上下方向の撓みが生じても、その撓みがローラ支持部材３，３とガセットプレート２の間の滑動で逃がされ、制振用のブレース１には長期荷重が作用しない。ガセットプレート２は、ローラ支持部材３，３によって鉛直方向に滑動自在なローラ支持構造で支持されるが、ブレース１からの水平力は、ガセットプレート２からローラ支持部材３に伝達され、梁３０に伝えられる。したがって、上記ローラ支持構造であっても、ブレース１は制振用としての機能が損なわれることがなく、地震や風などの水平方向の外力に抵抗する斜材として有効に働かせることができる。ガセットプレート２は、長期荷重による梁３０の前記撓みで、梁３０に対してメタルタッチとなるが、このとき梁３０とガセットプレート２との間に音鳴り等が生じないように、例えば前記隙間Ｇに対面する梁３０の下面にアンボンド材（図示せず）などを貼り付けても良い。   According to the vibration-damping brace joint structure of this configuration, the gusset plate 2 and the lower surface of the beam 30 are interposed with a gap G, and the two roller support members 3 and 3 fixed to the lower surface of the beam 30 The left and right ends of the plate 2 are slidably supported in the vertical direction. Therefore, even if the beam 30 is bent in the vertical direction due to a long-term load such as a load load or a snow load in a heavy snowy region, the bending is released by sliding between the roller support members 3 and 3 and the gusset plate 2. A long-term load does not act on the vibration-damping brace 1. The gusset plate 2 is supported by a roller support structure that is slidable in the vertical direction by the roller support members 3 and 3, but the horizontal force from the brace 1 is transmitted from the gusset plate 2 to the roller support member 3 and is applied to the beam 30. Reportedly. Therefore, even with the roller support structure described above, the brace 1 can be effectively used as a diagonal member that resists horizontal external forces such as earthquakes and winds without damaging the function for vibration control. The gusset plate 2 has a metal touch with respect to the beam 30 due to the bending of the beam 30 due to a long-term load, but the gap 30 is, for example, not generated between the beam 30 and the gusset plate 2 at this time. An unbond material (not shown) or the like may be attached to the lower surface of the beam 30 facing G.

図７および図８は、図１およ図２に示したＫ型ブレースにおける制振ブレース接合構造の他の構成例を示す。この構成例では、ローラ支持部材３が、梁３０の幅方向に延びる垂直姿勢の横片５と、梁３０の長手方向に延びる垂直姿勢の縦片６とを有し、前記横片５に複数の縦長のボルト挿通１２を有する水平断面がＴ字形のＴ形リブ４からなる。ボルト挿通孔１２は、前記横片５の幅方向に２列、上下に２列並べて合計４つ設けられている。このＴ形リブ４の前記横片５に対向するガセットプレート２の一端には、前記横片５に対面し、横片５のボルト挿通孔１２に整合する複数の縦長のボルト挿通孔１３を有する接合プレート１９を固定する。ローラ支持部材３を構成するＴ形リブ４の横片５のボルト挿通孔１２と前記接合プレート１９のボルト挿通孔１３にボルト１４を挿通し、このボルト１４にナット１５を螺合させることで、ガセットプレート２がローラ支持部材３に締付け接合される。Ｔ形リブ４の横片５と接合プレート１９との間には、接触面の滑りや相対移動を可能とする処理である絶縁処理のために、フッソ樹脂シートやブチルゴムなどの絶縁材１６が介在させられる。このほか、絶縁材１６として、例えばモリブデングリスを塗布しても良い。   7 and 8 show another configuration example of the vibration-damping brace joint structure in the K-type brace shown in FIGS. 1 and 2. In this configuration example, the roller support member 3 has a horizontal piece 5 in a vertical posture extending in the width direction of the beam 30 and a vertical piece 6 in a vertical posture extending in the longitudinal direction of the beam 30. A horizontal section having a vertically long bolt insertion 12 is formed of a T-shaped rib 4 having a T-shape. A total of four bolt insertion holes 12 are provided in two rows in the width direction of the horizontal piece 5 and two rows in the vertical direction. One end of the gusset plate 2 facing the horizontal piece 5 of the T-shaped rib 4 has a plurality of vertically long bolt insertion holes 13 facing the horizontal piece 5 and aligned with the bolt insertion holes 12 of the horizontal piece 5. The joining plate 19 is fixed. By inserting a bolt 14 into the bolt insertion hole 12 of the horizontal piece 5 of the T-shaped rib 4 constituting the roller support member 3 and the bolt insertion hole 13 of the joining plate 19, and screwing a nut 15 into the bolt 14, The gusset plate 2 is fastened and joined to the roller support member 3. An insulating material 16 such as a fluorine resin sheet or butyl rubber is interposed between the horizontal piece 5 of the T-shaped rib 4 and the bonding plate 19 for an insulating process that enables the sliding and relative movement of the contact surface. Be made. In addition, as the insulating material 16, for example, molybdenum grease may be applied.

この構成例の制振ブレース接合構造の場合にも、ガセットプレート２と、梁３０の下面との間に隙間Ｇが介在し、ローラ支持部材３により、ガセットプレート２が鉛直方向に滑動自在に支持されるので、長期荷重が梁３０からガセットプレート２を経て制振用のブレース１に入力されない。このため、制振用のブレース１を、地震や風などの水平方向の外力に抵抗する斜材として有効に働かせることができる。   Also in the case of the vibration-damping brace joint structure of this configuration example, a gap G is interposed between the gusset plate 2 and the lower surface of the beam 30, and the gusset plate 2 is slidably supported in the vertical direction by the roller support member 3. Therefore, the long-term load is not input from the beam 30 to the vibration control brace 1 via the gusset plate 2. For this reason, the bracing 1 for damping can be effectively used as a diagonal material that resists horizontal external forces such as earthquakes and winds.

図９および図１０は、この発明の他の実施形態を示す。図９は、この実施形態の制振ブレース接合構造が適用されるＶ型ブレースを組み込んだ架構体の正面図を示す。制振ブレース接合構造は、同図のＢ部に示すように、２本の制振用のブレース１，１の下側の先端が、１つのガセットプレート２を介して、梁３０の中央位置の上面で接合される部分に適用される。図１０は、図９におけるＢ部を拡大して示す。   9 and 10 show another embodiment of the present invention. FIG. 9 shows a front view of a frame body incorporating a V-type brace to which the vibration-damping brace joint structure of this embodiment is applied. As shown in B part of the figure, the vibration-damping brace joint structure has two vibration-damping braces 1, 1 having a lower end at the center of the beam 30 via one gusset plate 2. Applies to the part to be joined at the top FIG. 10 is an enlarged view of portion B in FIG.

この実施形態の制振ブレース接合構造では、前記ガセットプレート２と、梁３０の上面との間に隙間Ｇを介在させ、梁３０の上面に固定された２つのローラ支持部材３，３により、ガセットプレート２の左右両端を鉛直方向に滑動自在に支持している。ローラ支持部材３，３によるガセットプレート２の支持構造の具体例は、図３および図４に示した構成例のものであっても、図７および図８に示した構成例のものであっても良い。   In the vibration-damping brace joint structure of this embodiment, a gap G is interposed between the gusset plate 2 and the upper surface of the beam 30, and the two roller support members 3 and 3 fixed to the upper surface of the beam 30 The left and right ends of the plate 2 are slidably supported in the vertical direction. A specific example of the structure for supporting the gusset plate 2 by the roller support members 3 and 3 is that of the configuration example shown in FIGS. Also good.

この制振ブレース接合構造の場合にも、ガセットプレート２と、梁３０の上面との間に隙間Ｇが介在し、ローラ支持部材３により、ガセットプレート２が鉛直方向に滑動自在に支持されるので、長期荷重が梁３０からガセットプレート２を経て制振用のブレース１に入力されない。このため、制振用のブレース１を、地震や風などの水平方向の外力に抵抗する斜材として有効に働かせることができる。   Also in the case of this vibration-damping brace joint structure, a gap G is interposed between the gusset plate 2 and the upper surface of the beam 30, and the gusset plate 2 is slidably supported in the vertical direction by the roller support member 3. The long-term load is not input from the beam 30 to the brace 1 for vibration suppression through the gusset plate 2. For this reason, the bracing 1 for damping can be effectively used as a diagonal material that resists horizontal external forces such as earthquakes and winds.

図１１は、この発明のさらに他の実施形態を示す。この実施形態の制振ブレース接合構造は、例えばＫ形ブレースとして組み立てられる制振用のブレース１の下側の一端を梁３０と柱３１の接合部に接合した例に適用したものである。ガセットプレート２の下向きの一端は梁３０の上面に隙間Ｇを介して配置される。ガセットプレート２の柱３１に対面する左端は、柱３１に固定されたローラ支持部材３によ鉛直方向に滑動自在に支持される。また、ガセットプレート２の右端は、梁３０の上面に固定されたもう１つのローラ支持部材３により鉛直方向に滑動自在に支持される。ローラ支持部材３，３によるガセットプレート２の支持構造の具体例は、図３および図４に示した構成例のものであっても、図７および図８に示した構成例のものであっても良い。   FIG. 11 shows still another embodiment of the present invention. The vibration-damping brace joint structure of this embodiment is applied to an example in which one end on the lower side of the vibration-damping brace 1 assembled as, for example, a K-shaped brace is joined to the joint between the beam 30 and the column 31. The downward one end of the gusset plate 2 is disposed on the upper surface of the beam 30 via a gap G. The left end of the gusset plate 2 facing the column 31 is supported by a roller support member 3 fixed to the column 31 so as to be slidable in the vertical direction. Further, the right end of the gusset plate 2 is supported so as to be slidable in the vertical direction by another roller support member 3 fixed to the upper surface of the beam 30. A specific example of the structure for supporting the gusset plate 2 by the roller support members 3 and 3 is that of the configuration example shown in FIGS. Also good.

この構成例の制振ブレース接合構造の場合にも、ガセットプレート２と、梁３０の上面との間に隙間Ｇが介在し、ローラ支持部材３により、ガセットプレート２が鉛直方向に滑動自在に支持されるので、長期荷重が梁３０からガセットプレート２を経て制振用のブレース１に入力されない。このため、制振用のブレース１を、地震や風などの水平方向の外力に抵抗する斜材として有効に働かせることができる。なお、図１１において、例えば梁３０に固定されるローラ支持部材３は省略しても良い。   Also in the case of the vibration-damping brace joint structure of this configuration example, a gap G is interposed between the gusset plate 2 and the upper surface of the beam 30, and the gusset plate 2 is slidably supported in the vertical direction by the roller support member 3. Therefore, the long-term load is not input from the beam 30 to the vibration control brace 1 via the gusset plate 2. For this reason, the bracing 1 for damping can be effectively used as a diagonal material that resists horizontal external forces such as earthquakes and winds. In FIG. 11, for example, the roller support member 3 fixed to the beam 30 may be omitted.

１…制振用のブレース
２…ガセットプレート
３…ローラ支持部材
４…Ｔ形リブ
５…横片
６…縦片
７…案内突部
８…溝
９…受け金具
１２，１３…ボルト挿通孔
１９…接合プレート
３０…梁
３１…柱 DESCRIPTION OF SYMBOLS 1 ... Brace 2 for vibration control ... Gusset plate 3 ... Roller support member 4 ... T-shaped rib 5 ... Horizontal piece 6 ... Vertical piece 7 ... Guide protrusion 8 ... Groove 9 ... Receptacle metal 12, 13 ... Bolt insertion hole 19 ... Joining plate 30 ... beam 31 ... column

Claims (4)

制振用のブレースの先端を、ガセットプレートを介して、梁、または柱と梁の両方に接合する制振ブレース接合構造であって、
前記ガセットプレートと、前記梁の下面または上面との間に隙間を介在させ、前記梁に固定され、または柱と梁の両方に固定されたローラ支持部材により、前記ガセットプレートを鉛直方向に滑動自在に支持したことを特徴とする制振ブレース接合構造。 A vibration-damping brace joint structure in which the tip of a brace for vibration damping is joined to a beam or both a column and a beam via a gusset plate,
A gap is interposed between the gusset plate and the lower or upper surface of the beam, and the gusset plate can be slid in the vertical direction by a roller support member fixed to the beam or fixed to both the column and the beam. Damping brace joint structure characterized by being supported by 請求項１において、前記ローラ支持部材が梁に固定されたものであって、前記ガセットプレートの両端を支持する制振ブレース接合構造。   The vibration-damping brace joint structure according to claim 1, wherein the roller support member is fixed to a beam and supports both ends of the gusset plate. 請求項１または請求項２において、前記ローラ支持部材は、前記梁の幅方向に延びる垂直姿勢の横片と前記梁の長手方向に延びる垂直姿勢の縦片とでなる水平断面がＴ字形のＴ形リブと、このＴ形リブの前記横片から突出し水平断面がＴ字形の案内突部とでなり、前記ガセットプレートに、前記ローラ支持部材の案内突部に対して鉛直方向に滑動自在に係合する受け金具を固定した制振ブレース接合構造。   3. The roller support member according to claim 1, wherein the roller support member has a T-shaped horizontal section composed of a horizontal piece in a vertical posture extending in a width direction of the beam and a vertical piece in a vertical posture extending in a longitudinal direction of the beam. And a guide protrusion having a T-shaped horizontal section that protrudes from the lateral piece of the T-shaped rib, and is slidably engaged with the gusset plate in a vertical direction relative to the guide protrusion of the roller support member. Damping brace joint structure with fixed metal fittings. 請求項１または請求項２において、前記ローラ支持部材は、前記梁の幅方向に延びる垂直姿勢の横片と前記梁の長手方向に延びる垂直姿勢の縦片とを有し、前記横片に縦長のボルト挿通孔を有する水平断面がＴ字形のＴ形リブからなり、前記ガセットプレートに、前記ローラ支持部材を構成するＴ形リブの横片に対面し、前記横片のボルト挿通孔に整合する縦長のボルト挿通孔を有する接合プレートを固定し、前記横片のボルト挿通孔と前記接合プレートのボルト挿通孔に挿通したボルトでガセットプレートを前記ローラ支持部材に接合した制振ブレース接合構造。   3. The roller support member according to claim 1, wherein the roller support member includes a horizontal piece in a vertical posture extending in a width direction of the beam and a vertical piece in a vertical posture extending in a longitudinal direction of the beam. The horizontal cross section having a bolt insertion hole is formed of a T-shaped rib, faces the lateral piece of the T-shaped rib constituting the roller support member on the gusset plate, and aligns with the bolt insertion hole of the lateral piece. A vibration-damping brace joining structure in which a joining plate having a vertically long bolt insertion hole is fixed, and a gusset plate is joined to the roller support member with a bolt inserted into the bolt insertion hole of the horizontal piece and the bolt insertion hole of the joining plate.
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Publication number Priority date Publication date Assignee Title
CN108756411A (en) * 2018-05-30 2018-11-06 长江大学 The eccentrically braces structure of tree-shaped column
JP2020012332A (en) * 2018-07-20 2020-01-23 Ｊｆｅスチール株式会社 Brace joining part and brace crosslinking structure

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