JP3371811B2 - Seismic control reinforcement structure of existing building - Google Patents
Seismic control reinforcement structure of existing buildingInfo
- Publication number
- JP3371811B2 JP3371811B2 JP16675898A JP16675898A JP3371811B2 JP 3371811 B2 JP3371811 B2 JP 3371811B2 JP 16675898 A JP16675898 A JP 16675898A JP 16675898 A JP16675898 A JP 16675898A JP 3371811 B2 JP3371811 B2 JP 3371811B2
- Authority
- JP
- Japan
- Prior art keywords
- stud
- steel plate
- steel
- fixed
- steel frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Working Measures On Existing Buildindgs (AREA)
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【発明の属する技術分野】本発明は、耐震性の低い既存
建築物に対して、制震装置を組み込んだ補強要素を増設
することにより、既存建築物を制震化する制震補強構造
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic strengthening structure for damping an existing building by adding a reinforcing element incorporating a damping device to the existing building having low seismic resistance. Is.
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】従来、耐
震性の低い既存の鉄筋コンクリート建物を耐震補強する
場合、新たに壁あるいは鉄骨枠組みブレースを組み込ん
だ耐震要素を増設する方法が採用されていた。2. Description of the Related Art Conventionally, in the case of retrofitting an existing reinforced concrete building having low seismic resistance, a method of newly installing seismic resistant elements incorporating walls or steel frame braces has been adopted. .
【０００３】しかし、特に、建物内部で耐震補強しよう
とすると、必要な補強構面数を確保するために、廊下や
部屋への出入り口が確保できなくなり、結果として建物
の使用勝手を著しく低下させることが多いという問題が
あった。[0003] However, especially when an attempt is made to perform seismic reinforcement inside a building, in order to secure the required number of reinforcing constructions, it is not possible to secure entrances to corridors or rooms, resulting in a marked decrease in the usability of the building. There was a problem that there were many.
【０００４】本発明は、このような問題点を解消すべく
なされたもので、その目的は、既存建築物の柱・梁に囲
まれた開口部に制震装置を組み込んだ補強構面を出入り
口用等の開口を確保して増設することができると共に、
地震により建築物に入力されたエネルギーを制震装置で
吸収して数少ない補強要素の増設で既存の建築物の耐震
性を向上させることができる既存建築物の制震補強構造
を提供することにある。The present invention has been made in order to solve such problems, and its purpose is to provide an entrance and exit to a reinforcing structural surface in which a vibration control device is incorporated in an opening surrounded by columns and beams of an existing building. Along with being able to secure additional openings for use, etc.,
The purpose of the present invention is to provide a seismic control reinforcement structure for an existing building, which can improve the seismic resistance of the existing building by absorbing the energy input to the building by the earthquake with a seismic control device and adding a few reinforcement elements. .
【０００５】[0005]
【課題を解決するための手段】本発明の既存建築物の制
震補強構造は、既存建築物の柱と梁で囲まれた開口部に
鋼製の間柱を配置し、上梁の側面に添接して固着した補
強鋼板に間柱の上端を固定し、間柱の下端は床スラブに
後施工アンカーや樹脂接着剤等で固定し、この間柱を上
下に分離して上部間柱と下部間柱から構成すると共に、
上部間柱と下部間柱の分断位置を下端に近い位置とし、
この上部間柱と下部間柱を制震要素（弾塑性ダンパー、
オイルダンパー、粘性ダンパー，粘弾性ダンパーなど）
により連結して構成されていることを特徴とする（請求
項１：図１、図２参照）。[Means for Solving the Problems] In the structure for damping vibration of an existing building of the present invention, a steel stud is placed in an opening surrounded by a column and a beam of the existing building and attached to a side surface of the upper beam. The upper end of the stud is fixed to the reinforcing steel plate that is fixed in contact with it, and the lower end of the stud is fixed to the floor slab with post-installation anchors or resin adhesive, and this stud is separated into upper and lower studs and a lower stud. ,
Set the dividing position of the upper stud and the lower stud near the lower end,
The upper and lower studs are seismic control elements (elasto-plastic dampers,
(Oil damper, viscous damper, viscoelastic damper, etc.)
It is characterized in that it is configured to be connected by (see claim 1: FIG. 1 and FIG. 2).
【０００６】上部間柱は上部鉄骨と鋼板から構成され、
下部間柱は下部鉄骨から構成され、補強鋼板は上梁の両
側面にそれぞれ上部が固定され下部が上梁の下面から下
方へ 突出する一対の鋼板から構成され、この一対の鋼板
の下部で前記上部鉄骨が両側から挟持されて固定され、
前記下部鉄骨が後施工アンカーまたは樹脂接着剤で床ス
ラブに固定されている（請求項２：図２参照）。 The upper stud is composed of an upper steel frame and a steel plate,
The lower stud is composed of the lower steel frame, and the reinforcing steel plate is the upper beam.
The upper part is fixed to each side and the lower part is from the lower surface of the upper beam.
It consists of a pair of steel plates protruding in one direction.
The upper steel frame is clamped and fixed from both sides at the bottom of
The lower steel frame is attached to the floor with a post-installed anchor or resin adhesive.
It is fixed to the lab (claim 2: see FIG. 2).
【０００７】柱と梁に囲まれた開口部の中央部等に制震
要素を組み込んだ間柱タイプの制震補強構面が形成さ
れ、この左右両側に、廊下や部屋への出入り口等のため
の開口が容易に確保される。地震により建築物自体が変
形すると、同時に制震要素も変形を受け、この制震要素
は変形により振動エネルギーを吸収して制震効果を発揮
し、補強構面の増設数が少なくても既存の建築物の耐震
性を向上させることができる。制震要素は下端に近い位
置に設置することによって間柱下端の曲げモーメントが
小さくなるため、間柱を床スラブに固定するための後施
工アンカーや樹脂接着剤等の設計が可能となり、かつ制
震要素を一構面内に必要量確保することができる。A stud type seismic control reinforcement structure incorporating seismic control elements is formed in the central portion of the opening surrounded by columns and beams, and on the left and right sides of this, a seismic control structural surface is formed for entrances and exits to corridors and rooms. The opening is easily secured. When the building itself is deformed by an earthquake, the vibration control element is also deformed at the same time, and this vibration control element absorbs the vibration energy by the deformation and exerts the vibration control effect. The earthquake resistance of the building can be improved. By installing the damping element near the lower end, the bending moment at the lower end of the stud becomes smaller, so it is possible to design post-installed anchors and resin adhesives to fix the stud to the floor slab, and The required amount can be secured in one plane.
【０００８】また、既存の梁の耐力に余裕が無い場合に
は、上梁の両側面および下面を全長にわたって剪断補強
や曲げ補強する一対の鋼板と溝型の鉄骨材とからなる断
面略Ｕ字形状の補強鋼板を用い（請求項３：図３参
照）、前記溝型の鉄骨材内に上部間柱の上部鉄骨を挿入
して固定し、間柱タイプの制震補強構面の構築を可能と
する。If the existing beam has no proof strength, it is composed of a pair of steel plates and a groove-type steel aggregate for shearing and bending reinforcing the both side surfaces and the lower surface of the upper beam over the entire length. > Using a reinforcing steel plate with a substantially U-shaped surface ( Claim 3 : Refer to Fig. 3), insert the upper steel frame of the upper stud into the groove type steel aggregate.
Then, it will be possible to construct a stud type seismic reinforcement structure.
【０００９】さらに、既存の梁の耐力に余裕が無く、床
スラブの存在等により梁の補強が困難な場合には、上梁
の全長にわたって添設された補強鋼板の両端部に応力を
柱に伝達する柱定着部材を設ける（請求項４：図４、図
５参照）。即ち、制震要素による付加応力を梁側面の補
強鋼板により処理し、付加応力を補強鋼板および柱定着
部材を介して直接柱に伝達し、間柱タイプの制震補強構
面の構築を可能とする（図６参照）。Further, when the existing beam has no proof strength and it is difficult to reinforce the beam due to the presence of a floor slab, stress is applied to the columns at both ends of the reinforcing steel plate attached over the entire length of the upper beam. A column fixing member for transmitting is provided ( claim 4 : see FIGS. 4 and 5). That is, the additional stress due to the damping element is processed by the reinforcing steel plate on the side surface of the beam, and the additional stress is directly transmitted to the column through the reinforcing steel plate and the column fixing member, which enables the construction of the stud type damping and reinforcing structure. (See Figure 6).
【００１０】[0010]
【発明の実施の形態】以下、本発明を図示する実施の形
態に基づいて説明する。図１は本発明の既存の鉄筋コン
クリート造の建物における制震補強構造の基本的な実施
形態を示したものである。図２はその制震補強構面の上
梁・下梁接合部の詳細を示したものである。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described based on illustrated embodiments. FIG. 1 shows a basic embodiment of a seismic control and reinforcement structure for an existing reinforced concrete building of the present invention. Fig. 2 shows the details of the upper beam and lower beam joints of the seismic strengthening structure.
【００１１】図１において、既存の鉄筋コンクリート造
の骨組みにおける柱１、１と梁２、３で囲まれた開口部
４の中央部に鋼製の間柱５を増設して開口部４の左右両
側に出入り口等のための開口４ａ、４ｂを確保し、間柱
５を上下に分断し、上梁２に固定した上部間柱５−１と
下梁３に固定した下部間柱５−２を弾塑性ダンパー６で
連結して地震エネルギーを吸収するようにしている。In FIG. 1, a steel stud 5 is added to the center of the opening 4 surrounded by the pillars 1 and 1 and the beams 2 and 3 in the existing reinforced concrete frame, and both sides of the opening 4 are provided on both sides. The openings 4a and 4b for entrances and exits are secured, the stud 5 is divided into upper and lower parts, and the upper stud 5-1 fixed to the upper beam 2 and the lower stud 5-2 fixed to the lower beam 3 are elasto-plastic dampers 6. It is connected to absorb seismic energy.
【００１２】鋼製の間柱５は、例えば、図２に示すよう
に、所定幅の鋼板５ａと、この鋼板５ａを両端と中間で
補強する一体的な縦リブ５ｂと、鋼板５ａの上部に水平
に取り付けられるＩ形鋼からなる上部鉄骨５ｃと、鋼板
５ａの下部を構成するＴ形鋼等からなる下部鉄骨５ｄか
ら構成され、後述する理由から、下部鉄骨５ｄを上部間
柱５−１から分離した下部間柱５−２としている。な
お、間柱５は鋼板・縦リブ・鉄骨材等からなる場合を示
したが、これに限定されることなく、その他の構造・形
状を採用できることはいうまでもない。The steel stud 5 is, for example, as shown in FIG. 2, a steel plate 5a having a predetermined width, integral vertical ribs 5b for reinforcing the steel plate 5a at both ends and in the middle, and a horizontal plate on the upper part of the steel plate 5a. It is composed of an upper steel frame 5c made of I-shaped steel and a lower steel frame 5d made of T-shaped steel or the like which constitutes the lower part of the steel plate 5a. The lower steel frame 5d is separated from the upper stud 5-1 for the reason described later. The lower stud is 5-2. Although the stud 5 is shown to be made of a steel plate, a vertical rib, a steel frame, or the like, it is needless to say that the stud 5 is not limited to this and other structures and shapes can be adopted.
【００１３】上部間柱５−１は、上梁２の両側面に添接
して固着した一対の補強鋼板７に剛結している。この補
強鋼板７は、その上部７ａを樹脂接着剤あるいはモルタ
ル８により上梁２の側面に貼着し、多数の貫通ボルト９
で上梁２に固定されている。補強鋼板７の下部７ｂは上
梁２の下面から下方へ突出させ、この下部７ｂで上部間
柱５−１の上部鉄骨５ｃを両側から挟持し、この下部７
ｂと上部鉄骨５ｃのフランジをボルト１０で締結する。The upper studs 5-1 are rigidly connected to a pair of reinforcing steel plates 7 attached to and fixed to both side surfaces of the upper beam 2. The reinforcing steel plate 7 has its upper portion 7a adhered to the side surface of the upper beam 2 with a resin adhesive or mortar 8, and a large number of through bolts 9
It is fixed to the upper beam 2. The lower portion 7b of the reinforcing steel plate 7 is projected downward from the lower surface of the upper beam 2, and the upper steel frame 5c of the upper stud 5-1 is clamped from both sides by the lower portion 7b.
B is fastened to the flange of the upper steel frame 5c with a bolt 10.
【００１４】下部間柱５−２としての下部鉄骨５ｄは、
下梁３および床スラブ１１に後施工アンカー１２で固定
する。ここで、一般に、後施工アンカーは引張強度が低
いため、床スラブへの下部間柱の直接接合は、曲げモー
メントに対する抵抗が弱い。そのため、制震装置を組み
込む位置、即ち間柱５の分断位置を下端に近い位置と
し、下部間柱５−２の床スラブ１１への接合部に作用す
る曲げモーメントを低減している。The lower steel frame 5d as the lower stud 5-2 is
It is fixed to the lower beam 3 and the floor slab 11 by the post-installed anchor 12. Here, since the post-installed anchor generally has low tensile strength, the direct connection of the lower stud to the floor slab has weak resistance to bending moment. Therefore, the position where the vibration damping device is incorporated, that is, the dividing position of the stud 5 is set to a position close to the lower end, and the bending moment acting on the joint portion of the lower stud 5-2 to the floor slab 11 is reduced.
【００１５】上部間柱５−１と下部間柱５−２との間に
は、適当な間隙が形成されるようにし、両者を制震装置
としての弾塑性ダンパー６で連結する。この弾塑性ダン
パー６は、例えば鋼板６ａの中間部にハニカム形状の孔
６ｂを設けたものであり（図１参照）、上部間柱５−１
の鋼板５ａおよび下部間柱５−２のウェブを鋼板６ａで
挟み、ボルト１３で締結する（図２(c) 参照) 。また、
この弾塑性ダンパー６は、梁長手方向に２組配設してい
る。なお、制震装置としては、これに限らず、その他の
弾塑性ダンパー、オイルダンパー、粘性ダンパー、粘弾
性ダンパー等を用いることができる。An appropriate gap is formed between the upper stud 5-1 and the lower stud 5-2, and both are connected by an elasto-plastic damper 6 as a vibration control device. The elasto-plastic damper 6 has, for example, a honeycomb-shaped hole 6b provided in an intermediate portion of a steel plate 6a (see FIG. 1), and an upper stud 5-1.
The steel plate 5a and the web of the lower stud 5-2 are sandwiched by the steel plates 6a and fastened with the bolts 13 (see FIG. 2 (c)). Also,
Two sets of the elasto-plastic dampers 6 are arranged in the longitudinal direction of the beam. The vibration control device is not limited to this, and other elasto-plastic dampers, oil dampers, viscous dampers, viscoelastic dampers, etc. can be used.
【００１６】次に、図３に示す例は、図１、図２と同様
の制震補強構造において、既存の梁の耐力が小さいとき
に、ダンパーが効果を発揮する前に梁が破壊するのを防
ぐようにした構造であり、上梁２を全長にわたって断面
略Ｕ字状の補強鋼板２０で剪断や曲げの補強を行ってい
る。この補強鋼板２０は、上梁２の両側面に樹脂接着剤
あるいはモルタル２３で貼着される一対の鋼板２１と、
この鋼板２１の下部間に嵌め込まれボルト２４で締結さ
れると共に上梁２の下面に樹脂接着剤あるいはモルタル
２３で貼着される溝型の鉄骨材２２と、上階の床スラブ
１１の上から取り付けられ、両端が一対の鋼板２１の上
端に固定されるタイバー２５から構成されている。Next, in the example shown in FIG. 3, in the same seismic control structure as in FIGS. 1 and 2, when the proof stress of the existing beam is small, the beam breaks before the damper exerts its effect. The upper beam 2 is reinforced by shearing and bending with a reinforcing steel plate 20 having a substantially U-shaped cross section over the entire length. The reinforcing steel plate 20 includes a pair of steel plates 21 attached to both side surfaces of the upper beam 2 with a resin adhesive or mortar 23.
From the top of the floor slab 11 on the floor slab 11 and the groove-type steel aggregate 22 which is fitted between the lower parts of the steel plates 21 and fastened with the bolts 24 and is bonded to the lower surface of the upper beam 2 with a resin adhesive or mortar 23. The tie bar 25 is attached and has both ends fixed to the upper ends of the pair of steel plates 21.
【００１７】このような補強鋼板２０の下部の鉄骨材２
２内に上部間柱５−１の上部鉄骨５ｃを挿入してボルト
等で固定する（図示省略）。その他の構成は、図１、図
２の例と同じである。The steel frame member 2 below the reinforcing steel plate 20
The upper steel frame 5c of the upper stud 5-1 is inserted into 2 and fixed with bolts or the like (not shown). Other configurations are the same as those in the examples of FIGS. 1 and 2.
【００１８】また、図４、図５に示す例は、既存の梁の
耐力が小さく、かつ床スラブ等の存在により梁の剪断や
曲げの補強が十分にできないときに、ダンパーによる付
加応力処理用に鋼板を用い、柱に直接応力を伝達するよ
うにしたものである。上梁２の補強鋼板３０の形状は、
前述の補強鋼板とほぼ同じであり、一対の鋼板３１と溝
型の鉄骨材３２から断面略Ｕ字状の補強鋼板とするが、
補強鋼板３０の上部は座屈止めのアンカー３５と樹脂接
着剤あるいはモルタル３３で上梁２の両側面に取り付
け、その長手方向両端部を左右の柱１、１に定着する。
その他の構成は、図１、図２の例と同じである。The examples shown in FIGS. 4 and 5 are for the additional stress treatment by the damper when the existing beam has a small yield strength and the beam cannot be sufficiently reinforced by shearing or bending due to the presence of a floor slab or the like. The steel plate is used to transmit stress directly to the column. The shape of the reinforcing steel plate 30 of the upper beam 2 is
The reinforcing steel plate is almost the same as the above-mentioned reinforcing steel plate, and a pair of steel plates 31 and a groove-shaped steel aggregate 32 is used as a reinforcing steel plate having a substantially U-shaped cross section
The upper part of the reinforcing steel plate 30 is attached to both side surfaces of the upper beam 2 with an anchor 35 for preventing buckling and a resin adhesive or mortar 33, and both longitudinal ends thereof are fixed to the left and right columns 1, 1.
Other configurations are the same as those in the examples of FIGS. 1 and 2.
【００１９】補強鋼板３０の柱１、１への定着は、例え
ば図５に示すような方法で行う。図５(a) の例１では、
平面から見て、補強鋼板３０の鋼板３１の端部に柱１の
角部を覆うＬ字端部４０を一体的に設け、このＬ字端部
４０と柱１の間に樹脂接着剤あるいはモルタル３３を充
填し、後施工アンカー４１で固定している。The fixing of the reinforcing steel plate 30 to the columns 1 and 1 is performed by a method as shown in FIG. 5, for example. In Example 1 of FIG. 5 (a),
When viewed from a plane, an L-shaped end portion 40 that covers the corner portion of the pillar 1 is integrally provided at an end portion of the steel plate 31 of the reinforcing steel plate 30, and a resin adhesive or mortar is provided between the L-shaped end portion 40 and the pillar 1. 33 is filled and is fixed by the post-installed anchor 41.
【００２０】図５(b) の例２では、柱１の開口部４側の
面に鋼板４２を設け、この鋼板４２の上端を補強鋼板３
０の両端における下面に溶接等で固定し、鋼板４２と柱
１とは後施工アンカー４４と樹脂接着剤あるいはモルタ
ル４５で定着している。鋼板４２は梁下に部分的に配設
してもよいし、床スラブ上まで延在させてもよい。図５
(c) の例３では、形鋼からなる鉄骨材４３を用いてお
り、柱１とは後施工アンカーとモルタル、もしくはモル
タルのみで接続している。その他の構成は図５(b) と同
様である。In Example 2 of FIG. 5 (b), a steel plate 42 is provided on the surface of the column 1 on the side of the opening 4 and the upper end of the steel plate 42 is used as the reinforcing steel plate 3
It is fixed to the lower surface at both ends of 0 by welding or the like, and the steel plate 42 and the pillar 1 are fixed by a post-installed anchor 44 and a resin adhesive or mortar 45. The steel plate 42 may be partially disposed under the beam, or may be extended to above the floor slab. Figure 5
In Example 3 of (c), the steel aggregate 43 made of shaped steel is used, and the post 1 is connected to the post-installed anchor with mortar or only mortar. Other configurations are the same as those in FIG. 5 (b).
【００２１】図６に示すのは、図４、図５の制震補強構
面における各部材の応力分布を示したものであり、弾塑
性ダンパー６からの付加応力が間柱５と梁側面の補強鋼
板３０で柱１に伝達され、既存フレームの応力分布と足
し合わされることにより、図６の上に示す応力分布を有
する間柱タイプの制震補強構面が得られる。FIG. 6 shows the stress distribution of each member in the seismic control reinforcement structure of FIGS. 4 and 5, in which the additional stress from the elasto-plastic damper 6 reinforces the stud 5 and the beam side surface. By being transmitted to the pillar 1 by the steel plate 30 and added to the stress distribution of the existing frame, a stud type seismic control structure having the stress distribution shown in FIG. 6 is obtained.
【００２２】[0022]
【発明の効果】本発明の既存建築物の制震補強構造は、
既存建築物の柱と梁で囲まれた開口部に鋼製の間柱を配
置し、上梁の側面に添接して固着した補強鋼板に間柱の
上端を固定し、間柱の下端は床スラブに後施工アンカー
や樹脂接着剤等で固定し、この間柱を上下に分離して上
部間柱と下部間柱から構成すると共に、上部間柱と下部
間柱の分断位置を下端に近い位置とし、この上部間柱と
下部間柱を制震要素により連結するようにしたため、次
のような効果を奏する。
(1) 柱と梁に囲まれた開口部の中央部等に制震要素を組
み込んだ間柱タイプの制震補強構面が形成され、この左
右両側に、廊下や部屋への出入り口等のための開口が容
易に確保されるため、従来の建物の使用勝手の低下を解
消することができる。
(2) 地震により建築物自体が変形すると、同時に制震要
素も変形を受け、この制震要素は変形により振動エネル
ギーを吸収して制震効果を発揮し、補強構面の増設数が
少なくても既存の建築物の耐震性を向上させることがで
きるため、建物の使用勝手が向上すると共に、比較的安
価な既存建築物の補強構造を得ることができる。
(3) 制震要素は下端に近い位置に設置することによって
間柱下端の曲げモーメントが小さくなるため、間柱を床
スラブに固定するための後施工アンカーや樹脂接着剤等
の設計が可能となり、かつ制震要素を一構面内に必要量
確保することができる。
(4) 上梁の両側面および下面を全長にわたって剪断補強
や曲げ補強する断面略Ｕ字形状の補強鋼板を用い、さら
にこの補強鋼板の両端部に応力を柱に伝達する柱定着部
材を設けることにより、既存の梁の耐力に余裕が無い場
合、梁の剪断や曲げの補強が困難な場合にも、容易に対
応することができる。EFFECTS OF THE INVENTION The seismic damping structure for existing buildings of the present invention is
A steel stud is placed in the opening surrounded by columns and beams of the existing building, and the upper end of the stud is fixed to the reinforcing steel plate that is attached and fixed to the side surface of the upper beam, and the lower end of the stud is behind the floor slab. fixed with installed anchor and a resin adhesive or the like, the upper separating the studs vertically
It consists of part studs and bottom studs, as well as top studs and bottom
Set the dividing position of the studs near the bottom edge, and
Since the lower studs are connected by the vibration control element, the following effects are achieved. (1) A stud type seismic control reinforcement structure that incorporates seismic control elements is formed in the center of the opening surrounded by columns and beams. Since the opening is easily secured, it is possible to eliminate the deterioration in the usability of the conventional building. (2) When the building itself is deformed by an earthquake, the vibration control element is also deformed at the same time, and this vibration control element absorbs the vibration energy by the deformation and exerts the vibration control effect. Since the seismic resistance of the existing building can be improved, the usability of the building is improved and a relatively inexpensive reinforcing structure of the existing building can be obtained. (3) By installing the damping element near the bottom edge
Since the bending moment at the bottom of the stud is small,
Post-installed anchors and resin adhesives for fixing to slabs
It is possible to design the necessary amount of seismic control elements within one plane.
Can be secured. (4) Shear reinforcement on both sides and bottom of the upper beam over the entire length
Use a reinforcing steel plate with a substantially U-shaped cross section
The column anchoring section that transfers stress to the columns at both ends of this reinforcing steel plate
By providing the material, it is possible to easily cope with the case where the existing beam has no proof strength, or when it is difficult to reinforce the shearing or bending of the beam.
【図１】本発明の既存建築物の制震補強構造の第１実施
形態を示す正面図である。FIG. 1 is a front view showing a first embodiment of a seismic control reinforcement structure for an existing building of the present invention.
【図２】(a) は図１の上梁接合部の詳細を示す正面図、
(b) は図１のIIb −IIb 線断面図、(c) は図１のIIc −
IIc 線断面図である。2 (a) is a front view showing the details of the upper beam joint portion in FIG. 1,
(b) is a sectional view taken along the line IIb-IIb of FIG. 1, and (c) is a sectional view of IIc- of FIG.
FIG. 11 is a sectional view taken along line IIc.
【図３】本発明の既存建築物の制震補強構造の第２実施
形態であり、(a) は正面図、(b) は(a) のｂ−ｂ線断面
図である。3 is a second embodiment of the seismic control reinforcement structure for an existing building of the present invention, (a) is a front view, (b) is a sectional view taken along line bb of (a). FIG.
【図４】本発明の既存建築物の制震補強構造の第３実施
形態であり、(a) は正面図、(b) は(a) のｂ−ｂ線断面
図である。FIG. 4 is a third embodiment of the seismic control reinforcement structure for an existing building of the present invention, (a) is a front view, and (b) is a sectional view taken along line bb of (a).
【図５】図４の梁端部における鋼板の柱への定着方法の
種々の例であり、(a) は平面図、(b) および(c) は正面
図である。5A to 5C are various examples of a method of fixing a steel plate to a column at the beam end portion of FIG. 4, in which (a) is a plan view and (b) and (c) are front views.
【図６】本発明の制震補強構面における応力分布を示す
概略図である。FIG. 6 is a schematic view showing a stress distribution on the seismic control reinforcement structural surface of the present invention.
１……柱 ２……上梁 ３……下梁 ４……開口部 ４ａ…開口 ４ｂ…開口 ５……間柱 ５−１…上部間柱 ５−２…下部間柱 ６……弾塑性ダンパー（制震要素） ７……補強鋼板 ８……樹脂接着剤あるいはモルタル ９……貫通ボルト １０……ボルト １１……床スラブ １２……後施工アンカー １３……ボルト ２０……補強鋼板 ２１……鋼板 ２２……鉄骨材 ２３……樹脂接着剤あるいはモルタル ２４……ボルト ２５……タイバー ３０……補強鋼板 ３１……鋼板 ３２……鉄骨材 ３３……樹脂接着剤あるいはモルタル ３４……ボルト ３５……座屈止めアンカー ４０……Ｌ字端部 ４１……後施工アンカー ４２……鋼板 ４３……鉄骨材 ４４……後施工アンカー ４５……樹脂接着剤あるいはモルタル 1 ... Pillar 2 ... Upper beam 3 ... Lower beam 4 ... Opening 4a ... opening 4b ... opening 5: stud 5-1 ... Upper stud 5-2 ... Lower stud 6 ... Elasto-plastic damper (vibration control element) 7 ... Reinforcing steel plate 8: Resin adhesive or mortar 9 ... Penetration bolt 10 ... bolts 11 ... Floor slab 12 ... Post-installed anchor 13 ... Bolt 20 ... Reinforced steel plate 21 ... Steel plate 22 …… Steel aggregate 23 ... Resin adhesive or mortar 24 …… Bolt 25 …… Tie bar 30 ... Reinforced steel plate 31: Steel plate 32: Steel aggregate 33: Resin adhesive or mortar 34 ... Bolt 35: Buckling prevention anchor 40: L-shaped end 41 …… Post-installed anchor 42 ... Steel plate 43 ... Steel aggregate 44 ... Post-installed anchor 45: Resin adhesive or mortar
───────────────────────────────────────────────────── フロントページの続き (72)発明者 有田 友彦 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (72)発明者 鈴木 紀雄 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (72)発明者 黒川 泰嗣 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (72)発明者 國末 晃寛 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (56)参考文献 特開 平７−91109（ＪＰ，Ａ) 特開 平１−210581（ＪＰ，Ａ) 特開 昭58−146663（ＪＰ，Ａ) 特開 平２−16268（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) E04G 23/02 E04H 9/02 301 E04H 9/02 321 E04B 1/98 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomohiko Arita 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Norio Suzuki 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Taiji Kurokawa 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Akihiro Kunisue 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (56) Reference JP 7-91109 (JP, A) JP 1-210581 (JP, A) JP 58-146663 (JP, A) JP 2-16268 (JP , A) (58) Fields surveyed (Int.Cl. 7 , DB name) E04G 23/02 E04H 9/02 301 E04H 9/02 321 E04B 1/98
Claims (4)
鋼製の間柱を配置し、上梁の側面に添接して固着した補
強鋼板に間柱の上端を固定し、間柱の下端は床スラブに
固定し、この間柱を上下に分離して上部間柱と下部間柱
から構成すると共に、上部間柱と下部間柱の分断位置を
下端に近い位置とし、この上部間柱と下部間柱を制震要
素により連結して構成されていることを特徴とする既存
建築物の制震補強構造。1. A steel stud is placed in an opening surrounded by a pillar and a beam of an existing building, and the upper end of the stud is fixed to a reinforcing steel plate that is fixedly attached to the side surface of the upper beam, and the lower end of the stud is attached. Is fixed to the floor slab and this stud is separated into upper and lower studs.
The upper stud and the lower stud are separated from each other.
A damping structure for existing buildings, which is located near the lower end and is constructed by connecting the upper studs and the lower studs with damping elements.
れ、下部間柱は下部鉄骨から構成され、補強鋼板は上梁
の両側面にそれぞれ上部が固定され下部が上梁の下面か
ら下方へ突出する一対の鋼板から構成され、この一対の
鋼板の下部で前記上部鉄骨が両側から挟持されて固定さ
れ、前記下部鉄骨が後施工アンカーまたは樹脂接着剤で
床スラブに固定されていることを特徴とする請求項１に
記載の既存建築物の制震補強構造。 2. The upper stud is composed of an upper steel frame and a steel plate.
The lower stud is composed of the lower steel frame, and the reinforcing steel plate is the upper beam.
The upper part is fixed to both sides of the
It is composed of a pair of steel plates protruding downward from the
The upper steel frame is clamped and fixed from both sides at the bottom of the steel plate.
The lower steel frame is post-installed with an anchor or resin adhesive.
It is fixed to the floor slab, according to claim 1,
Seismic strengthening structure of the existing building described.
れ、下部間柱は下部鉄骨から構成され、補強鋼板は上梁
の両側面および下面を全長にわたって補強する一対の鋼
板と溝型の鉄骨材とから断面略Ｕ字形状とされ、前記溝
型の鉄骨材内に前記上部鉄骨が挿入されて固定され、前
記下部鉄骨が後施工アンカーまたは樹脂接着剤で床スラ
ブに固定されていることを特徴とする請求項１に記載の
既存建築物の制震補強構造。3. The upper stud is composed of an upper steel frame and a steel plate.
The lower stud is composed of a lower steel frame, and the reinforcing steel plates are a pair of steels that reinforce both sides and the lower surface of the upper beam over the entire length.
The plate and the groove-type steel aggregate are formed into a substantially U-shaped section ,
The upper steel frame is inserted and fixed in the steel frame of the mold,
The lower steel frame will be installed on the floor with a post-installed anchor or resin adhesive.
The seismic control reinforcement structure for an existing building according to claim 1, wherein the structure is fixed to the buoy.
板の両端部に応力を柱に伝達する柱定着部材を設けたこ
とを特徴とする請求項３に記載の既存建築物の制震補強
構造。4. The seismic strengthening of an existing building according to claim 3 , wherein column fixing members for transmitting stress to the columns are provided at both ends of a reinforcing steel plate provided over the entire length of the upper beam. Construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16675898A JP3371811B2 (en) | 1998-06-15 | 1998-06-15 | Seismic control reinforcement structure of existing building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16675898A JP3371811B2 (en) | 1998-06-15 | 1998-06-15 | Seismic control reinforcement structure of existing building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000001999A JP2000001999A (en) | 2000-01-07 |
| JP3371811B2 true JP3371811B2 (en) | 2003-01-27 |
Family
ID=15837185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16675898A Expired - Fee Related JP3371811B2 (en) | 1998-06-15 | 1998-06-15 | Seismic control reinforcement structure of existing building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3371811B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0653206A (en) * | 1992-07-28 | 1994-02-25 | Nissan Motor Co Ltd | Manufacture of semiconductor device |
| JP2008063816A (en) * | 2006-09-07 | 2008-03-21 | Maeda Corp | Aseismatic reinforcing structure and aseismatic reinforcement construction method |
| KR100895268B1 (en) * | 2008-06-12 | 2009-04-29 | 주식회사 지투시스넷 | Hemi-neglect measuring apparatus for stroke patients and method for the same |
| JP2013204249A (en) * | 2012-03-27 | 2013-10-07 | Fujita Corp | Frame structure |
| JP7432408B2 (en) * | 2020-03-17 | 2024-02-16 | 株式会社フジタ | Vibration damper |
-
1998
- 1998-06-15 JP JP16675898A patent/JP3371811B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000001999A (en) | 2000-01-07 |
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