JPH1018424A - Root wrapping reinforcing structure of column base of steel post or the like - Google Patents
Root wrapping reinforcing structure of column base of steel post or the likeInfo
- Publication number
- JPH1018424A JPH1018424A JP17234096A JP17234096A JPH1018424A JP H1018424 A JPH1018424 A JP H1018424A JP 17234096 A JP17234096 A JP 17234096A JP 17234096 A JP17234096 A JP 17234096A JP H1018424 A JPH1018424 A JP H1018424A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- column
- steel
- concrete
- column base
- 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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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、鉄骨柱や鋼管柱
（以下、鉄骨柱等と云うことがある。）構造の構築物を
構築するに当たり、鉄骨柱等を補強するべく当該鉄骨柱
等の下端の柱脚部で実施される根巻き型補強構造に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel column or a steel tube column (hereinafter, sometimes referred to as a steel column). The present invention relates to a root-wound reinforcement structure implemented at the column base of the present invention.
【０００２】[0002]
【従来の技術】鉄骨造構築物の柱脚部の剛性、耐力を高
める補強構造としては、一般的には、 露出型、根巻き型、埋め込み型に分類される。そ
の中でも、の根巻き型の補強構造は、施工も比較的容
易で、経済的でもあるため、多くの店舗や工場等の構築
物に採用されている。一般的には、図２に例示したよう
に、鉄骨柱ａの柱脚部ｂの外周に鉄筋ｄを配筋し、その
鉄筋ｄの外周に図示を省略した型枠を仮設し、その型枠
内にコンクリートｃを打設し、型枠を取り除いて当該根
巻き鉄筋コンクリートにより柱脚部ｂを補強する構成と
されている。2. Description of the Related Art Reinforcing structures for increasing the rigidity and strength of column bases of steel structures are generally classified into an exposed type, a rooted type, and an embedded type. Among them, the root-winding type reinforcement structure is relatively easy to construct and is economical, and is therefore used in many stores and factories. Generally, as illustrated in FIG. 2, a reinforcing bar d is arranged around the outer periphery of the column base b of the steel column a, and a formwork (not shown) is temporarily provided around the outer periphery of the reinforcing rod d. Concrete c is poured into the inside, the formwork is removed, and the column base b is reinforced with the base-wound reinforced concrete.
【０００３】の埋め込み型の補強構造としては、図３
に例示したように、鉄骨柱ａ’を杭頭ｓや耐圧版上から
建て、基礎梁ｗを施工することにより、鉄骨柱ａ’の柱
脚部ｂ’が基礎梁ｗの中に埋め込まれる構成となってい
る。また、図４に示したように、地盤ｇに縦孔ｈを形成
し、外周に薄帯鋼板ｉが螺旋状に巻かれ下端に底板ｋが
固着された中空管ｊを前記縦孔ｈの中に設置し、前記中
空管ｊの中に柱ｍを設置し、この柱ｍと中空管ｊとの間
にコンクリートｎを打設すると共に、中空管ｊの外周の
縦孔ｈ内に土砂ｐ等を埋め戻す構成も公知である（実開
昭５７−１５８８６４号公報参照）。[0003] As an embedded type reinforcing structure, FIG.
As shown in the example, the steel column a ′ is built from the pile head s or the pressure plate, and the foundation beam w is constructed, whereby the column base b ′ of the steel column a ′ is embedded in the foundation beam w. It has become. Further, as shown in FIG. 4, a hollow tube j in which a vertical hole h is formed in the ground g, a thin steel plate i is spirally wound on the outer periphery, and a bottom plate k is fixed to a lower end, is formed in the vertical hole h. And a column m is installed in the hollow tube j, concrete n is cast between the column m and the hollow tube j, and a vertical hole h on the outer periphery of the hollow tube j is provided. There is also known a configuration in which earth and sand p and the like are backfilled (see Japanese Utility Model Laid-Open No. 57-158864).
【０００４】[0004]
【本発明が解決しようとする課題】前記図２に例示した
根巻き型の補強構造は、同図２Ａにおける柱脚部のＩ−
Ｉ断面を示した図２Ｂのように、根巻きコンクリートｃ
の断面から鉄骨柱柱脚部ｂの断面を差し引いた符号Ｙで
示した部分とアンカーボルトｔによって、上部架構のせ
ん断力を下部の躯体ｅに伝達する。しかしながら、通
常、根巻きコンクリート断面は機能的にも意匠的にも大
きくできないため、前記Ｙ部分の面積は小さくなり、根
巻きコンクリート部分のせん断耐力は不足する。したが
って、ひとたび大地震が起きると、根巻き部分の鉄筋コ
ンクリートｃと床などの下部コンクリート躯体ｅの打継
ぎ部付近にひび割れ（破壊）が生じ、鉄筋コンクリート
ｃの破壊とアンカーボルトｔの破断につづき、鉄骨柱ａ
が移動し、建物に大きな損傷を及ぼしめることが先の阪
神大震災でも見られた通りである。因に、そのような鉄
骨柱柱脚部の急激な耐力低下を防止するために、根巻き
鉄筋コンクリートｃの断面を過大にすることは、実際
上、やはり納まり具合いが悪い。The root-winding reinforcement structure illustrated in FIG. 2 is similar to that of FIG.
As shown in FIG.
The shear force of the upper frame is transmitted to the lower frame e by the anchor bolt t and the portion indicated by the symbol Y obtained by subtracting the cross-section of the steel column base b from the cross-section. However, since the cross section of the rooted concrete cannot usually be enlarged in terms of function and design, the area of the Y portion is small, and the shear strength of the rooted concrete portion is insufficient. Therefore, once a large earthquake occurs, cracks (destruction) occur near the joint between the reinforced concrete c in the root winding part and the lower concrete skeleton e such as the floor, and the fracture of the reinforced concrete c and the fracture of the anchor bolt t leads to the steel frame. Pillar a
It was the same thing that was seen during the Great Hanshin Earthquake that moved the city and caused serious damage to the building. However, in order to prevent such a sudden drop in the strength of the column base of the steel frame, it is practically difficult to fit the cross section of the reinforced concrete c in an excessively large size.
【０００５】また、図３に例示した埋め込み型の補強構
造は、基礎梁ｗの配筋ｗ1、ｗ2中に鉄骨柱ａ’の柱脚部
ｂ’が入るため、鉄骨柱ａ’（柱脚部ｂ’）に基礎梁ｗ
の主筋ｗ1を貫通させたり、これを避けるために基礎梁
主筋ｗ1を鉄骨柱ａ’（柱脚部ｂ’）の手前で折り曲げ
るなどしなければならず、施工手間がかかる。また、前
記図４に例示した場合では、中空管ｊの内部には鉄筋が
配筋されてないが、柱ｍの柱脚部ｆは地盤ｇの中で固定
されている。しかし、そのように柱脚部ｆを固定するた
めに、縦孔ｈを深く掘削したり、中空管ｊに薄板鋼板ｉ
や底板ｋを取り付けたり、埋め戻し作業を行わなければ
ならず、そのような種々の作業が大変面倒で、施工性が
悪い。Further, in the embedded reinforcing structure illustrated in FIG. 3, since the column base b ′ of the steel column a ′ enters the reinforcing bars w 1 and w 2 of the foundation beam w, the steel column a ′ (column Foundation beam w on leg b ')
Of or passed through the main reinforcement w 1, the foundation beam main reinforcement w 1 in order to avoid this must be such as bending in front of the steel columns a '(column base b'), it takes the construction effort. Further, in the case illustrated in FIG. 4, no reinforcing bars are arranged inside the hollow tube j, but the column base f of the column m is fixed in the ground g. However, in order to fix the column base f in such a manner, the vertical hole h is excavated deeply, or the thin steel plate i
It is necessary to attach the bottom plate k or to perform backfilling work, and such various works are very troublesome and workability is poor.
【０００６】なお、柱脚部の補強構造ではないが、柱全
体の耐力を増強する手段として、鉄筋コンクリート柱の
外周に２つのアングル状又は２つの半円状の鋼板を突き
合わせて柱を包被し、前記鋼板の中にモルタル等を充填
して補強することも知られている（特公昭５３−４２９
８６号、特公昭５３−４３２５９号公報参照）。しか
し、この補強構造は、包被体の下端部と下部コンクリー
ト躯体の境界部に前述したような問題点があり、この境
界部の一体性も考慮した柱脚部の耐力、剛性を高める構
成となっていない。[0006] Although not a reinforcing structure for the column base, as a means for increasing the strength of the entire column, two angles or two semicircular steel plates are butted against the outer periphery of the reinforced concrete column to cover the column. It is also known that the steel plate is filled with mortar or the like to reinforce it (Japanese Patent Publication No. 53-429).
No. 86, JP-B-53-43259). However, this reinforcing structure has the above-mentioned problem at the boundary between the lower end of the wrapping body and the lower concrete skeleton, and a structure that increases the strength and rigidity of the column base in consideration of the integrity of the boundary. is not.
【０００７】したがって、本発明の目的は、大地震に耐
える柱脚部の根巻き鉄筋コンクリートを容易に施工で
き、しかも、簡便な構造で当該根巻きコンクリートと下
部コンクリート躯体との一体性を高めて柱脚部全体のせ
ん断耐力を確保し、耐震性を向上せしめ、急激な耐力低
下を防止する鉄骨柱等の柱脚部の根巻き型補強構造を提
供することにある。Accordingly, an object of the present invention is to provide a column-base reinforced concrete capable of easily withstanding a large earthquake, and to enhance the integrity of the column-wrapped concrete and the lower concrete frame with a simple structure. An object of the present invention is to provide a root-wound reinforcement structure for a column base such as a steel column, which secures the shear strength of the entire leg, improves seismic resistance, and prevents a sudden decrease in the strength.
【０００８】[0008]
【課題を解決するための手段】上記従来技術の課題を解
決するための手段として、請求項１の発明に係る鉄骨柱
等の柱脚部の根巻き型補強構造は、下部コンクリート躯
体７上に立設した鉄骨柱１又は鋼管柱の柱脚部１０の外
周に鉄筋２を配筋し、同鉄筋２の外周に外巻き鋼管３を
設置し、同外巻き鋼管３の内部にコンクリート４を充填
して成る鉄筋コンクリート根巻き型の補強構造であっ
て、前記下部コンクリート躯体７における外巻き鋼管３
の設置位置に、前記外巻き鋼管３を所定深さ埋設可能な
欠き込み部５を形成し、外巻き鋼管３を前記欠き込み部
５に設置した状態で当該欠き込み部５の隙間にモルタル
６等を充填し、外巻き鋼管３を下部コンクリート躯体７
に固定せしめたことを特徴とする。As a means for solving the above-mentioned problems in the prior art, a root-winding reinforcing structure for a column base such as a steel column according to the first aspect of the present invention is provided on a lower concrete frame 7. Reinforcing bars 2 are arranged on the outer periphery of the standing steel column 1 or the column base 10 of the steel tube column, an outer wound steel tube 3 is installed on the outer periphery of the reinforcing bar 2, and concrete 4 is filled inside the outer wound steel tube 3. A reinforced concrete root-winding type reinforcement structure, comprising:
At the installation position, a notch 5 is formed in which the outer wound steel pipe 3 can be embedded at a predetermined depth, and a mortar 6 is inserted into a gap between the notched part 5 while the outer wound steel pipe 3 is installed in the notch 5. And the outer wrapped steel pipe 3 is placed in the lower concrete frame 7
It is characterized by being fixed to.
【０００９】[0009]
【発明の実施の形態及び実施例】本発明に係る柱脚部の
補強構造は、コンクリートの根巻きによって柱脚部を補
強する根巻き型の補強構造であり、通例、図１に示した
鉄骨柱（鋼管又はＨ型鋼）１の下端柱脚部で好適に実施
される。鉄骨柱１が立設される床などの下部コンクリー
ト躯体７は、以下の手順で施工される。即ち、鉄骨柱１
を定着するアンカーボルト９、及び鉄骨柱１の外周に配
筋される鉄筋２の主筋（差し筋）２ａ、並びに欠き込み
部５を形成する型材を予め配置した後、コンクリートを
打設して形成されている。欠き込み部５は、図１に示し
たように、後述する外巻き鋼管３の設置位置において、
下部コンクリート躯体７の上面から約１０ｃｍの深さの
凹状に形成されていると共に、図示を省略した平面方向
視形状が、外巻き鋼管３と同形、同大の角形状又は円形
状に形成されている。BEST MODE FOR CARRYING OUT THE INVENTION A column base reinforcing structure according to the present invention is a base-roll type reinforcing structure for reinforcing a column base by means of concrete base winding, and is usually a steel frame shown in FIG. It is suitably implemented at the lower column base of the column (steel pipe or H-section steel) 1. The lower concrete skeleton 7 such as the floor on which the steel column 1 is erected is constructed in the following procedure. That is, the steel column 1
An anchor bolt 9 for fixing the steel bar, a main bar (reinforcing bar) 2a of the reinforcing bar 2 arranged on the outer periphery of the steel frame column 1, and a forming material for forming the cutout portion 5 are arranged in advance, and then concrete is cast. Have been. As shown in FIG. 1, the notched portion 5 is provided at an installation position of an externally wound steel pipe 3 described later.
It is formed in a concave shape having a depth of about 10 cm from the upper surface of the lower concrete skeleton 7, and a shape in a plan view (not shown) is formed in the same shape, the same square shape or the same shape as the outer wound steel pipe 3. I have.
【００１０】かくして、鉄骨柱１は、鉄筋２の帯筋２ｂ
を予め仮止めした状態で上方からクレーンで降ろし、前
記下部コンクリート躯体７の上に設置し、アンカーボル
ト９で下部コンクリート躯体７に定着する。しかる後、
仮止めされた帯筋２ｂを主筋２ａに接続して鉄筋２を組
み立てる。次に、外巻き鋼管３を以下の手順で設置す
る。外巻き鋼管３は、前記鉄筋２を被覆するのに必要十
分な口径、高さを有する角形又は丸形の鋼管であり、前
記鉄筋２の外周を囲むようにして上方からクレーンで降
ろし、その下端縁部を前記欠き込み部５内に設置する。
この外巻き鋼管３の下端縁部が欠き込み部５に設置され
た状態で、当該下端縁部の外側における欠き込み部５の
隙間に、無収縮モルタル６やセメントペースト等を充填
し、外巻き鋼管３を下部コンクリート躯体７に強固に固
定し一体性を高める。当該外巻き鋼管３の上端レベル位
置まで、外巻き鋼管３の内側と柱脚部１０の外側との間
にコンクリート４を打設する。[0010] Thus, the steel column 1 is formed by the band 2 b of the reinforcing bar 2.
Is temporarily fixed in advance and lowered from above by a crane, installed on the lower concrete skeleton 7, and fixed to the lower concrete skeleton 7 with anchor bolts 9. After a while
The reinforcing bar 2 is assembled by connecting the temporarily fixed band 2b to the main bar 2a. Next, the outer wound steel pipe 3 is installed in the following procedure. The externally wound steel pipe 3 is a square or round steel pipe having a diameter and a height sufficient to cover the reinforcing bar 2, and is lowered from above by a crane so as to surround the outer periphery of the reinforcing bar 2. Is installed in the notch 5.
In a state where the lower end edge of the outer wound steel pipe 3 is set in the notch 5, the non-shrinkable mortar 6, cement paste, or the like is filled in the gap of the notch 5 outside the lower end edge, and the outer winding is performed. The steel pipe 3 is firmly fixed to the lower concrete frame 7 to enhance the integrity. Concrete 4 is cast between the inside of the externally wound steel pipe 3 and the outside of the column base 10 to the upper end level position of the externally wound steel pipe 3.
【００１１】したがって、外巻き鋼管３内の根巻き鉄筋
コンクリート４は、柱脚部１０に一体化され同柱脚部１
０を拘束し、せん断耐力が有効に高められる。外巻き鋼
管３は、欠き込み部５内に埋設され下部コンクリート躯
体７にしっかりと固定され、その一体性が高められてい
るから、大地震によって外巻き鋼管３内の根巻き鉄筋コ
ンクリート４が破壊する虞れも全くない。Therefore, the reinforced concrete 4 in the externally wound steel pipe 3 is integrated with the column base 10 and is integrated with the column base 1.
0 is constrained, and the shear strength is effectively increased. The outer wound steel pipe 3 is buried in the notch 5 and is firmly fixed to the lower concrete skeleton 7, and its integrity is enhanced. Therefore, the root-wound reinforced concrete 4 in the outer wound steel pipe 3 is destroyed by a large earthquake. There is no fear.
【００１２】なお、前記外巻き鋼管３の内壁面に、図示
を省略したスタッドやリブを設置して実施することによ
り、鉄骨柱１と外巻き鋼管３との一体性を向上させ、柱
脚部１０の終局耐力をより一層高めることができる。ま
た、図示を省略した鋼管柱、とりわけ、コンクリート充
填型鋼管柱の柱脚部に前記補強構造を実施することによ
り、より一層、耐力、靱性を増強せしめ、耐震性能を高
めることができ、超高層建物や大スパン構造物にも効果
的に適応される。By installing studs and ribs (not shown) on the inner wall surface of the externally wound steel pipe 3, the integrity of the steel column 1 and the externally wound steel pipe 3 is improved, and 10 can further increase the ultimate proof stress. Further, by implementing the reinforcing structure on a steel pipe column not shown, in particular, on a column base of a concrete-filled steel pipe column, the strength and toughness can be further enhanced, and the seismic performance can be enhanced. It is effectively adapted to buildings and large span structures.
【００１３】[0013]
【本発明の奏する効果】本発明の鉄骨柱等の柱脚部の根
巻き型補強構造によれば、外巻き鋼管が床などの下部コ
ンクリート躯体にしっかりと一体化された状態で、更に
その内部の根巻き鉄筋コンクリートを拘束し、根巻きコ
ンクリート部のせん断耐力が高められているので、必要
最小限の断面で、急激な耐力低下を確実に防止し、耐震
性が向上される。また、外巻き鋼管は、下部コンクリー
ト躯体上の欠き込み部に設置し、無収縮モルタルを隙間
に充填するだけで確実に固定される上、当該外巻き鋼管
が型枠の役目もするので、型枠なくして当該外巻き鋼管
内にコンクリートを打設でき、施工性の向上にも貢献す
る。According to the root-winding reinforcement structure for a column base such as a steel column of the present invention, the externally wound steel pipe is firmly integrated with the lower concrete body such as the floor, and furthermore, the inside thereof is The reinforced concrete is restrained and the shear strength of the reinforced concrete is increased, so that the required minimum cross section can be reliably prevented from abruptly decreasing the proof strength and the earthquake resistance is improved. In addition, the externally wound steel pipe is installed in the notch on the lower concrete skeleton, is securely fixed only by filling the gap with non-shrink mortar, and since the externally wound steel pipe also serves as a formwork, the mold is formed. Concrete can be poured into the externally wound steel pipe without a frame, which contributes to improvement of workability.
【図１】鉄骨柱における柱脚部の根巻き型補強構造を示
した断面図である。FIG. 1 is a cross-sectional view showing a root-winding reinforcement structure for a column base of a steel column.
【図２】Ａは従来例を示した断面図、ＢはＡのＩ−Ｉ線
矢視断面図である。2A is a cross-sectional view showing a conventional example, and FIG. 2B is a cross-sectional view of A taken along the line II.
【図３】異なる従来例の断面図である。FIG. 3 is a cross-sectional view of a different conventional example.
【図４】異なる従来例の断面図である。FIG. 4 is a cross-sectional view of a different conventional example.
１ 鉄骨柱 ２ 鉄筋 ３ 外巻き鋼管 ４ コンクリート ５ 欠き込み部 ６ 無収縮モルタル ７ 下部コンクリート躯体 ９ アンカーボルト １０ 柱脚部 DESCRIPTION OF SYMBOLS 1 Steel column 2 Reinforcing steel 3 Externally wound steel pipe 4 Concrete 5 Notch 6 Non-shrink mortar 7 Lower concrete frame 9 Anchor bolt 10 Column base
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大島 基義 東京都中央区銀座八丁目21番１号 株式会 社竹中工務店東京本店内 (72)発明者 佐々木 幸男 東京都中央区銀座八丁目21番１号 株式会 社竹中工務店東京本店内 (72)発明者 太田 道彦 東京都中央区銀座八丁目21番１号 株式会 社竹中工務店東京本店内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Motoyoshi Oshima 8-21-1, Ginza, Chuo-ku, Tokyo Inside the Takenaka Corporation Tokyo Main Store (72) Inventor Yukio Sasaki 8-21 Ginza, Chuo-ku, Tokyo No. 1 Takenaka Corporation Tokyo Main Store (72) Inventor Michihiko Ota 8-21 Ginza Ginza Chuo-ku Tokyo Central Tokyo Main Store
Claims (1)
柱又は鋼管柱の柱脚部の外周に鉄筋が配筋され、同鉄筋
の外周に外巻き鋼管が設置され、同外巻き鋼管の内部に
コンクリートが充填されて成る鉄筋コンクリート根巻き
型の補強構造であって、 前記下部コンクリート躯体における外巻き鋼管の設置位
置に、前記外巻き鋼管を所定深さ埋設可能な欠き込み部
が形成されており、外巻き鋼管が前記欠き込み部に設置
された状態で当該欠き込み部の隙間にモルタル等が充填
され、外巻き鋼管が下部コンクリート躯体に固定された
構成であることを特徴とする、鉄骨柱等の柱脚部の根巻
き型補強構造。1. A steel bar or a steel pipe column erected on a lower concrete frame is provided with a reinforcing bar around an outer periphery of a column base, and an outer steel tube is installed around the outer periphery of the reinforcing steel bar. A reinforced concrete root-winding type reinforcement structure in which concrete is filled into the lower concrete frame, wherein a cutout portion capable of burying the outer-wound steel pipe at a predetermined depth is formed at an installation position of the outer-wound steel pipe in the lower concrete skeleton. A steel column having a configuration in which a gap between the notched portions is filled with mortar or the like in a state where the outer wound steel tube is installed in the notched portion, and the outer wound steel tube is fixed to a lower concrete body. Root-wound reinforcement structure for column bases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17234096A JP3603130B2 (en) | 1996-07-02 | 1996-07-02 | Root-wound reinforcement structure for column bases such as steel columns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17234096A JP3603130B2 (en) | 1996-07-02 | 1996-07-02 | Root-wound reinforcement structure for column bases such as steel columns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1018424A true JPH1018424A (en) | 1998-01-20 |
| JP3603130B2 JP3603130B2 (en) | 2004-12-22 |
Family
ID=15940098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17234096A Expired - Lifetime JP3603130B2 (en) | 1996-07-02 | 1996-07-02 | Root-wound reinforcement structure for column bases such as steel columns |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3603130B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1108831A1 (en) | 1999-12-17 | 2001-06-20 | Mitsubishi Heavy Industries, Ltd. | Root wrapping type aseismic reinforcement construction and method for base of column member |
| JP2003213952A (en) * | 2002-01-24 | 2003-07-30 | Tadahiro Omi | Strut base wrapper for clean room |
| KR100520318B1 (en) * | 2000-12-25 | 2005-10-14 | 니혼카이 엘엔지 가부시키가이샤 | Design method of earthquake-proof reinforcement structure, and storage medium |
| CN100374659C (en) * | 2004-10-10 | 2008-03-12 | 李应东 | Construction method of vibration resistant pedestal base |
| JP2015028290A (en) * | 2013-06-28 | 2015-02-12 | 清水建設株式会社 | Joining structure of mutual columns and building |
| JP2016011509A (en) * | 2014-06-27 | 2016-01-21 | 清水建設株式会社 | Joining structure of mutual columns and building |
| JP2016216993A (en) * | 2015-05-20 | 2016-12-22 | 大昌合同会社 | Encasing steel frame for steel column |
| JP2017066625A (en) * | 2015-09-28 | 2017-04-06 | 東京電力ホールディングス株式会社 | Reinforcement method of single column structure |
| CN109441012A (en) * | 2018-11-27 | 2019-03-08 | 上海电气电站环保工程有限公司 | Reinforcement structure and its construction method based on H profile steel support column |
-
1996
- 1996-07-02 JP JP17234096A patent/JP3603130B2/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1108831A1 (en) | 1999-12-17 | 2001-06-20 | Mitsubishi Heavy Industries, Ltd. | Root wrapping type aseismic reinforcement construction and method for base of column member |
| US6438904B1 (en) | 1999-12-17 | 2002-08-27 | Mitsubishi Heavy Industries, Ltd. | Root wrapping type aseismic reinforcement construction and method for base of column member |
| KR100520318B1 (en) * | 2000-12-25 | 2005-10-14 | 니혼카이 엘엔지 가부시키가이샤 | Design method of earthquake-proof reinforcement structure, and storage medium |
| JP2003213952A (en) * | 2002-01-24 | 2003-07-30 | Tadahiro Omi | Strut base wrapper for clean room |
| CN100374659C (en) * | 2004-10-10 | 2008-03-12 | 李应东 | Construction method of vibration resistant pedestal base |
| JP2015028290A (en) * | 2013-06-28 | 2015-02-12 | 清水建設株式会社 | Joining structure of mutual columns and building |
| JP2016011509A (en) * | 2014-06-27 | 2016-01-21 | 清水建設株式会社 | Joining structure of mutual columns and building |
| JP2016216993A (en) * | 2015-05-20 | 2016-12-22 | 大昌合同会社 | Encasing steel frame for steel column |
| JP2017066625A (en) * | 2015-09-28 | 2017-04-06 | 東京電力ホールディングス株式会社 | Reinforcement method of single column structure |
| CN109441012A (en) * | 2018-11-27 | 2019-03-08 | 上海电气电站环保工程有限公司 | Reinforcement structure and its construction method based on H profile steel support column |
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| Publication number | Publication date |
|---|---|
| JP3603130B2 (en) | 2004-12-22 |
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