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 like

Info

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.)
Granted
Application number
JP17234096A
Other languages
Japanese (ja)
Other versions
JP3603130B2 (en
Inventor
Akio Tamura
彰男 田村
Hiroshi Sawada
博 沢田
Tsuguhisa Ikeda
次寿 池田
Kiyoshi Oshima
基義 大島
Yukio Sasaki
幸男 佐々木
Michihiko Ota
道彦 太田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takenaka Komuten Co Ltd
Original Assignee
Takenaka Komuten Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Takenaka Komuten Co Ltd filed Critical Takenaka Komuten Co Ltd
Priority to JP17234096A priority Critical patent/JP3603130B2/en
Publication of JPH1018424A publication Critical patent/JPH1018424A/en
Application granted granted Critical
Publication of JP3603130B2 publication Critical patent/JP3603130B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To secure a shear capacity of a steel post column base as a whole and enhance its earthquake resistance by upgrading the integrated properties of a root wrapping concrete area and a lower part concrete skeleton. SOLUTION: Reinforsing bars 2 are placed on the outer peripheral area of a column base 10 of a steel post 1 or a steel pipe post erected on a lower part concrete skeleton 7. A root wrapping steel pipe 3 is set up on the outer peripheral area of the reinforcing bars 2 where concrete 4 is filled up inside the root wrapping steel pipe 3. A notched area 5, which enables the root wrapping steel pipe 3 to be buried in a specified depth, is formed at a setting position of the root wrapping steel pipe 3 on the lower part concrete skeleton 7. With the root wrapping steel pipe 3 set up in the notched area 5, mortar 6 or the like is filled up in a clearance of the notches areas 5, thereby fixing the root wrapping steel pipe 3 with the lower part concrete skeleton 7.

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】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.

【図面の簡単な説明】[Brief description of the drawings]

【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.

【符号の説明】[Explanation of symbols]

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)

【特許請求の範囲】[Claims] 【請求項1】下部コンクリート躯体の上に立設した鉄骨
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.
JP17234096A 1996-07-02 1996-07-02 Root-wound reinforcement structure for column bases such as steel columns Expired - Lifetime JP3603130B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (10)

* Cited by examiner, † Cited by third party
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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