JPH09228655A - Reinforcing structure of existing structure - Google Patents

Reinforcing structure of existing structure

Info

Publication number
JPH09228655A
JPH09228655A JP3950296A JP3950296A JPH09228655A JP H09228655 A JPH09228655 A JP H09228655A JP 3950296 A JP3950296 A JP 3950296A JP 3950296 A JP3950296 A JP 3950296A JP H09228655 A JPH09228655 A JP H09228655A
Authority
JP
Japan
Prior art keywords
frame
column
columns
reinforcing
existing
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.)
Pending
Application number
JP3950296A
Other languages
Japanese (ja)
Inventor
Minoru Cho
稔 長
Toshiro Makita
敏郎 牧田
Kazuji Shimazaki
和司 島▲崎▼
Kazuyuki Sumi
一行 角
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.)
Hazama Corp
Original Assignee
Hazama Gumi 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 Hazama Gumi Ltd filed Critical Hazama Gumi Ltd
Priority to JP3950296A priority Critical patent/JPH09228655A/en
Publication of JPH09228655A publication Critical patent/JPH09228655A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide reinforcing structure, in which the rigidity of a frame can be increased without closing the opening of the frame in an existing structure while improving the ductility and strength of a column member and the ductility and strength of a single upright column can be enhanced without closing the periphery of the single upright column. SOLUTION: In the reinforcing structure of a frame consisting of columns 1, 2 having no ancillary wall and a beam 3 in an existing reinforced concrete structure or steel encased reinforced concrete, knee braces 11 are installed to the opposed joining sections of the two columns having no ancillary wall and the beam, and steel sheets 10 are wound on sections from the lower ends of at least knee braces to sections near to a floor slab in the columns, thus reinforcing the columns without closing the frame. In the reinforcing structure of the columns 2 having no ancillary wall, the knee braces are mounted on both sides of the Joining sections of the columns and the beams 3, 3, and the steel sheets are wound on the sections from the lower ends of at least the knee braces to the floor slab 4 in the columns.

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】本発明は既存構造物の補強構
造に関し、詳細には既存の鉄筋コンクリート構造物又は
鉄骨鉄筋コンクリート構造物において、付帯壁を備えな
い二本の柱及び梁からなるフレームまたは付帯壁を備え
ない柱の補強構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure for an existing structure, and more particularly, to an existing reinforced concrete structure or steel-framed reinforced concrete structure, which is a frame or an incidental wall composed of two columns and beams without an incidental wall. The present invention relates to a reinforcement structure for a pillar that does not include

【0002】[0002]

【従来の技術】既存の鉄筋コンクリート構造物又は鉄骨
鉄筋コンクリート構造物において、付帯壁を備えない二
本の柱及び梁からなるフレームや、梁に接合した付帯壁
を備えない単独の柱は、ピロティ、地下駐車場あるいは
倉庫等において用いられている。かように付帯壁の無い
フレームや単立柱は、フレーム内や単立柱の周りを自由
に往き来することができるといった平面利用上の利点か
ら構築されるものの、耐震性能という点ではフレームや
単立柱の剛性及び強度が低くなるといった欠点を有して
いるため、何らかの耐震補強が求められている。
2. Description of the Related Art In existing reinforced concrete structures or steel reinforced concrete structures, a frame consisting of two columns and beams without additional walls, or a single column without additional walls joined to the beams is Used in parking lots and warehouses. Although a frame or monolithic column without ancillary walls is constructed from the advantage of flat use that it can freely move in and around the frame, it is seismic-resistant in terms of frame and monolithic column. Since it has the drawback of low rigidity and strength, some seismic reinforcement is required.

【0003】この要求に対して、従来、既存フレームや
単立柱に付帯壁またはブレースを増設してその剛性及び
強度を向上させる方法が提案されている。
In response to this demand, conventionally, there has been proposed a method of adding an additional wall or a brace to an existing frame or a single column to improve its rigidity and strength.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、上記従
来のように付帯壁またはブレースを既存フレームや単立
柱に増設すると、フレームの開口や単立柱周りを塞いで
しまうためフレーム内や単立柱周りを通ることができな
くなって、平面利用上の利点を失ってしまうという不都
合を生じる。
However, when an additional wall or brace is added to an existing frame or a single-standing column as in the above-mentioned conventional method, the opening of the frame or the surrounding of the single-standing column is closed, so that the frame passes through the frame or around the single-standing column. It becomes impossible to do so, and the advantage of using the plane is lost.

【0005】本発明は上記問題点を解消するためになさ
れたものであり、その目的は、既存構造物においてフレ
ームの開口を塞ぐこと無く、フレームの剛性及び強度を
向上することができて、同時に、柱部材の靱性や強度も
向上することができる既存構造物の補強構造を提供する
ことにある。
The present invention has been made to solve the above problems, and an object of the present invention is to improve the rigidity and strength of the frame without closing the opening of the frame in the existing structure, and at the same time, Another object of the present invention is to provide a reinforcing structure for an existing structure that can improve the toughness and strength of a pillar member.

【0006】本発明の別の目的は、単立柱の周りを塞ぐ
こと無く、単立柱の靱性及び強度を向上することができ
る既存構造物の補強構造を提供することにある。
Another object of the present invention is to provide a reinforcing structure for an existing structure which can improve the toughness and strength of a single-standing column without blocking the surroundings of the single-standing column.

【0007】[0007]

【課題を解決するための手段】本発明は、前記目的に鑑
みてなされたものであって、その要旨は、既存の鉄筋コ
ンクリート構造物又は鉄骨鉄筋コンクリート構造物にお
ける付帯壁を備えない柱及び梁からなるフレーム及び柱
の補強構造であって、前記付帯壁を備えない二本の柱と
梁との対向する接合部に方づえを設け、前記柱において
少なくとも前記方づえ下端から床スラブ近傍までの区間
に鋼板を巻き付け、これにより前記フレームを塞ぐこと
無く補強したことを特徴とする既存構造物の補強構造に
ある。
The present invention has been made in view of the above-mentioned object, and its gist is a column and a beam in an existing reinforced concrete structure or a steel-framed reinforced concrete structure without an accompanying wall. A reinforcing structure of a frame and a pillar, wherein a strut is provided at an opposing joint between two pillars and a beam which do not include the incidental wall, and at least a section from the lower end of the strut to the vicinity of the floor slab in the pillar. A reinforcing structure of an existing structure is characterized in that a steel plate is wrapped around the steel plate to thereby reinforce the frame without closing it.

【0008】本発明の既存構造物の補強構造において、
前記方づえ間は補強材で連結して補強しても良く、かよ
うに補強材を設けるとフレームの剛性及び強度を向上す
ることができる。例えば、フレームを構成する梁の上側
にも付帯壁が構築されていない場合には、特に、この方
づえ間の補強材が、フレーム剛性及び強度の向上に寄与
する。
In the reinforcing structure of the existing structure of the present invention,
The ridges may be connected and reinforced with a reinforcing material. By providing the reinforcing material in this way, the rigidity and strength of the frame can be improved. For example, when the incidental wall is not constructed on the upper side of the beam forming the frame, the reinforcing material between the bars particularly contributes to the improvement of frame rigidity and strength.

【0009】本発明の別の要旨は、既存の鉄筋コンクリ
ート構造物又は鉄骨鉄筋コンクリート構造物における付
帯壁を備えない柱の補強構造であって、前記付帯壁を備
えない柱と梁との接合部両側に方づえを設け、前記柱に
おいて少なくとも前記方づえ下端から床スラブ近傍まで
の区間に鋼板を巻き付けたことを特徴とする既存構造物
の補強構造にある。
Another aspect of the present invention is a reinforcement structure of a column in an existing reinforced concrete structure or a steel frame reinforced concrete structure which is not provided with an incidental wall, and is provided on both sides of a joint between a column and a beam which is not provided with the incidental wall. A reinforcement structure for an existing structure is provided, in which a support is provided, and a steel plate is wound around at least a section from the bottom end of the support to the vicinity of the floor slab in the pillar.

【0010】本発明の既存構造物の補強構造において、
鋼板は、その下端を床スラブから10〜30mm程度上方
に配置し、その上端を方づえの下端よりも上方で、且
つ、梁下面から10〜30mm程度以上下方に配置して巻
き付ければ良い。
In the reinforcing structure of the existing structure of the present invention,
The steel plate may be wound such that the lower end thereof is arranged above the floor slab by about 10 to 30 mm, the upper end thereof is arranged above the lower end of the direction and below the beam lower surface by about 10 to 30 mm or more.

【0011】本発明の既存構造物の補強構造において、
柱梁の対向する接合部に設けられた方づえと、方づえ間
を連結する補強材とは、鉄骨、鉄筋またはプレキャスト
コンクリート等によって予め一体に形成したものを用い
ても良い。
In the reinforcing structure of the existing structure of the present invention,
The bars provided at the joints of the pillars and beams facing each other and the reinforcing member for connecting the bars may be integrally formed by steel frame, reinforcing bar, precast concrete, or the like in advance.

【0012】[0012]

【実施例】以下に、本発明の一実施例を図を参照して説
明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

【0013】図1は本発明のフレームの補強構造を示す
正面図であり、図2(a)(b)は本発明の柱の補強構造であ
る。図1において、本発明の補強構造は、鉄筋コンクリ
ート構造物又は鉄骨鉄筋コンクリート構造物における付
帯壁を備えないフレーム、すなわち二本の柱1,2と、
この柱1,2間に架設された梁3とからなるフレームに
適用しており、その主要な構成として、付帯壁を備えな
い柱1,2の全長に巻き付けた鋼板10,10と、柱
1,2と梁3との対向する接合部に設けられた方づえ1
1,11とを備え、これら主要部に加えて、さらに前記
方づえ11,11間を連結するように梁3の下面に設け
られた補強材12を備える。
FIG. 1 is a front view showing a frame reinforcing structure of the present invention, and FIGS. 2 (a) and 2 (b) are pillar supporting structures of the present invention. In FIG. 1, a reinforcing structure of the present invention is a frame without an accompanying wall in a reinforced concrete structure or a steel frame reinforced concrete structure, that is, two columns 1 and 2,
It is applied to a frame consisting of a beam 3 erected between the columns 1 and 2, and the main components thereof are steel plates 10 and 10 wound around the entire length of the columns 1 and 2 having no incidental wall, and the column 1 , 2 and the beam 3 provided at the facing joint portion of the beam 3
1, 11 and, in addition to these main parts, a reinforcing member 12 provided on the lower surface of the beam 3 so as to connect between the supports 11, 11.

【0014】ここで、鋼板10,10は、その上端と梁
3の下面との間、及び、下端と床スラブとの間に、10
〜30mm程度のクリアランスができるように配置し、巻
き付けた鋼板10,10と柱1,2との間には、それぞ
れ無収縮モルタル等のグラウト材等を充填する。なお、
図1においては鋼板10は柱の全長にわたって巻き付け
たものを例示したが、少なくとも方づえ11,11の下
端から床スラブ4までの区間の柱2に巻き付けられてい
れば良い。
Here, the steel plates 10, 10 are provided between the upper end thereof and the lower surface of the beam 3 and between the lower end thereof and the floor slab.
Arranged so that a clearance of about -30 mm can be provided, and between the wound steel plates 10 and columns 1 and 2, a grout material such as non-shrink mortar is filled. In addition,
In FIG. 1, the steel plate 10 is illustrated as being wound over the entire length of the pillar, but it may be wound around the pillar 2 in a section from at least the lower ends of the bearings 11 and 11 to the floor slab 4.

【0015】また、前記方づえ11,11と前記補強材
12とは、予め鉄骨を組み立てることにより一体に形成
したものを、アンカーボルト(図示せず)等によって柱
梁のフレームに固定し、あるいは方づえ11,11は、
柱1,2に巻き付けられた鋼板10,10に溶接等で固
定する。
The bars 11, 11 and the reinforcing member 12 are integrally formed by assembling a steel frame in advance, and are fixed to the frame of the beam by anchor bolts (not shown), or Directions 11, 11 are
The steel plates 10 and 10 wound around the columns 1 and 2 are fixed by welding or the like.

【0016】次に、図2(a)(b)を参照して付帯壁を備え
ない柱の補強構造について説明する。図2(a)(b)におい
て、本発明の補強構造は、鉄筋コンクリート構造物又は
鉄骨鉄筋コンクリート構造物における付帯壁を備えない
柱2に適用しており、その主要な構成として、付帯壁を
備えない柱2に巻き付けた鋼板20,20’と、柱2と
梁3,3との接合部に設けられた方づえ21,21,2
1’,21’とを備える。
Next, with reference to FIGS. 2 (a) and 2 (b), a reinforcement structure of a column having no additional wall will be described. 2 (a) and 2 (b), the reinforcing structure of the present invention is applied to a pillar 2 of a reinforced concrete structure or a steel-framed reinforced concrete structure that does not have an accompanying wall, and does not include an accompanying wall as its main configuration. Steel plates 20 and 20 ′ wound around the pillar 2 and bearings 21, 21 and 2 provided at the joints between the pillar 2 and the beams 3 and 3.
1 ', 21'.

【0017】ここで、前記鋼板20,20’と方づえ2
1,21とは、上記鋼板10及び方づえ11と同様にし
て形成することができる。すなわち、鋼板20,20’
は、少なくとも方づえ21,21,21’,21’の下
端から床スラブ4までの区間の柱2に巻き付けられてい
れば良く、床スラブ4との間に10〜30mm程度のクリ
アランスを設けて配置する。したがって、鋼板20,2
0’は、図2(a)に示したように柱2のほぼ全長にわた
るように配置しても良く、また、図2(b)に示したよう
に方づえ21の下端から床スラブ4までの区間の柱2に
配置しても良い。
Here, the steel plates 20 and 20 'and the direction 2
The reference numerals 1 and 21 can be formed in the same manner as the steel plate 10 and the base 11. That is, the steel plates 20, 20 '
Need only be wound around the pillar 2 in the section from the lower ends of the bearings 21, 21, 21 ', 21' to the floor slab 4, and provide a clearance of about 10 to 30 mm with the floor slab 4. Deploy. Therefore, the steel plates 20, 2
0 ′ may be arranged so as to extend over substantially the entire length of the pillar 2 as shown in FIG. 2 (a), or from the lower end of the bar 21 to the floor slab 4 as shown in FIG. 2 (b). You may arrange | position in the pillar 2 of the area of.

【0018】次に、本発明の補強構造の効果を検証する
ため、図4(a)〜(e)の簡略図に示した柱梁の試験体を、
図3に示したように拘束し、これらの試験体に水平力及
び軸力を加えた際の柱頭部の水平変位を計算により求
め、その結果を図5のグラフに示す。
Next, in order to verify the effect of the reinforcing structure of the present invention, the pillar-beam test body shown in the simplified diagrams of FIGS.
The horizontal displacement of the stigma when constrained as shown in FIG. 3 and applying a horizontal force and an axial force to these test bodies was calculated, and the result is shown in the graph of FIG.

【0019】すなわち、図4(a)〜(e)においては、上下
に梁3’,5’を備えた柱2’の試験体を示し、特に、
図4(a)では従来の無補強の柱梁の試験体No.Oを示し、
図4(b)では柱のほぼ全長にわたって鋼板を巻き付けた
柱梁の試験体No.A-1,A-2を示し、図4(c)では柱梁の両
接合部それぞれに方づえのみを設けた柱梁の試験体No.B
を示し、図4(d)では柱のほぼ全長にわたって鋼板を巻
き付け、且つ柱梁の両接合部それぞれに方づえを設けた
柱梁の試験体No.Cを示し、図4(e)では柱梁の両接合部
それぞれに方づえを設け、且つ、方づえ下端から下の梁
上面までの区間の柱に鋼板を設けた柱梁の試験体No.Dを
示した。
That is, FIGS. 4 (a) to 4 (e) show a test piece of a column 2'provided with beams 3'and 5'up and down, and in particular,
Figure 4 (a) shows the conventional unreinforced column-beam test body No. O,
Fig. 4 (b) shows the specimens No.A-1 and A-2 of the column and beam in which the steel plate is wound over almost the entire length of the column, and Fig. 4 (c) shows only the direction of each joint of the column and beam. Column and beam test body No.B provided
Fig. 4 (d) shows the test piece No. C of the column and beam in which the steel plate is wound over almost the entire length of the column, and the joints are provided at both joints of the column and beam. Fig. 4 (e) shows the column and column. A test piece No. D of a column beam is shown, in which a cantilever is provided at each of the joints of the beam, and a steel plate is provided at the column in the section from the lower end of the beam to the lower beam upper surface.

【0020】以上の図4(a)〜(e)に示した試験体を、図
3に示したように、下の梁5’の両側面を拘束し、上の
梁3’の側面から水平力を負荷すると共に、上下の梁
3’,5’から柱を圧縮するように123トンの軸力を
負荷した。また、図5のグラフにおいては、縦軸に水平
力を取り、横軸に柱頭部水平変位を取って、各試験体の
耐力の解析結果を示した。
As shown in FIG. 3, the test pieces shown in FIGS. 4 (a) to 4 (e) are constrained on both side surfaces of the lower beam 5 ', and horizontally from the side surfaces of the upper beam 3'. Along with applying a force, an axial force of 123 tons was applied so as to compress the columns from the upper and lower beams 3'and 5 '. Further, in the graph of FIG. 5, the vertical axis represents the horizontal force and the horizontal axis represents the horizontal displacement of the stigma, and the analysis results of the yield strength of each test body are shown.

【0021】図5のグラフから、試験体No.C(方づえ+
柱全長鋼板巻付け)及び試験体No.D(方づえ+柱下半分
の鋼板巻付け)の剛性(傾き)が最も大きく改善し、か
つ水平耐力も最も大きく上昇したことが判る。また、こ
れら試験体No.Cと試験体No.Dとは、柱に鋼板を巻付けて
いるので、破壊時には曲げ降伏して変形能力が向上す
る。
From the graph of FIG. 5, test specimen No. C (direction +
It can be seen that the rigidity (tilt) of the full-length column steel plate winding) and the specimen No. D (direction + steel plate winding of the lower half of the column) were improved the most, and the horizontal yield strength was also increased the most. Moreover, since the steel plates are wound around the columns of these test pieces No. C and No. D, they bend and yield at the time of breakage and the deformability is improved.

【0022】これに対し、無補強の試験体No.Oは剪断破
壊し、また鋼板を巻き付けただけの試験体No.A-1,A-2で
は、破壊モードが剪断から曲げ降伏に移行し変形能力が
向上し、これに伴なって水平耐力も若干の上昇が認めら
れたが、剛性の向上はほとんど期待できないことが判
る。さらに、方づえのみの試験体No.Bでは、無補強の試
験体No.Oよりも剛性および水平耐力は改善したが、方づ
えと柱との接合部で圧壊するため変形能力についてはほ
とんど期待できないことが判る。
On the other hand, the unreinforced test body No. O was shear fractured, and in the case of the test bodies No. A-1 and A-2 which were simply wound with the steel plate, the failure mode was changed from shear to bending yield. Although the deformability was improved and the horizontal proof strength was slightly increased along with this, it can be seen that almost no improvement in rigidity can be expected. Furthermore, although the test piece No. B with only the cane has improved rigidity and horizontal proof strength as compared with the unreinforced test piece No. O, the deformation capacity can hardly be expected because it collapses at the joint between the cane and the column. I understand.

【0023】[0023]

【発明の効果】本発明のフレーム及び柱の補強構造で
は、柱に鋼板を巻き付けることによって、柱の靱性を向
上させることができる。また、二本の柱の対向する接合
部に方づえを設けたり、あるいは柱の両側に方づえを設
けたので、各柱と梁との接合を強固にすることができる
と共に、柱の非拘束長さを短くしたため柱の変形可能な
長さが短くなり実質的に強度を向上することができる。
さらに、フレームの補強構造では、対向する方づえ間を
補強材で連結して補強したため、柱梁のフレームの剛性
を向上させることができた。
In the frame and column reinforcing structure of the present invention, the toughness of the column can be improved by winding the steel plate around the column. In addition, since the joints of the two columns facing each other are provided with ridges, or the ridges are provided on both sides of the columns, the joints between each column and the beam can be strengthened, and the columns are not restrained. Since the length is shortened, the deformable length of the column is shortened and the strength can be substantially improved.
Furthermore, in the frame reinforcing structure, since the opposing ridges are connected and reinforced by the reinforcing material, the rigidity of the frame of the beam can be improved.

【0024】また本発明の補強構造では、柱梁のフレー
ムの開口を塞ぐこと無く、柱梁のフレームの剛性を高め
ると共に柱の強度と靱性を向上させたので、フレーム内
を通って自由に往き来することができるといった平面利
用上の利点も享受することができる。
Further, in the reinforcing structure of the present invention, the rigidity of the frame of the pillar / beam is improved and the strength and toughness of the pillar are improved without closing the opening of the frame of the pillar / beam. You can also enjoy the advantages of using the plane, such as being able to come.

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

【図1】本発明の既設構造物(フレーム)の補強構造を
示す正面図である。
FIG. 1 is a front view showing a reinforcing structure of an existing structure (frame) of the present invention.

【図2】本発明の既設構造物(柱)の補強構造を示す正
面図である。
FIG. 2 is a front view showing a reinforcing structure of an existing structure (pillar) of the present invention.

【図3】本発明の効果を計算により求める際に用いた柱
と梁の試験体の簡略図である。
FIG. 3 is a simplified diagram of a column and beam test body used when calculating the effect of the present invention by calculation.

【図4】(a)〜(e)は、従来例と比較して本発明の効果を
検証するために用いた柱と梁の試験体の簡略図である。
4 (a) to (e) are simplified diagrams of column and beam test bodies used for verifying the effects of the present invention as compared with the conventional example.

【図5】図4に示した柱と梁との試験体に、水平力と軸
力を加えた際の柱頭部の水平変位を計算により求め、そ
の結果を示したグラフである。
5 is a graph showing the horizontal displacement of the column head when a horizontal force and an axial force are applied to the test body of the column and the beam shown in FIG. 4, and the result is shown.

【符号の説明】[Explanation of symbols]

1,2 柱(付帯壁を備えない柱) 3 梁 4 床スラブ 10,20,20’ 鋼板 11,21 方づえ 12 補強材 1, 2 columns (columns without ancillary wall) 3 beams 4 floor slabs 10, 20, 20 'steel plates 11, 21 directions 12 reinforcements

フロントページの続き (72)発明者 角 一行 東京都港区北青山2−5−8 株式会社間 組内Continuation of front page (72) Inventor Kaku Line 2-5-8 Kita-Aoyama, Minato-ku, Tokyo Ma Incorporated

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 既存の鉄筋コンクリート構造物又は鉄骨
鉄筋コンクリート構造物における付帯壁を備えない柱及
び梁からなるフレーム及び柱の補強構造であって、 前記付帯壁を備えない二本の柱と梁との対向する接合部
に方づえを設け、前記柱において少なくとも前記方づえ
下端から床スラブ近傍までの区間に鋼板を巻き付け、こ
れにより前記フレームを塞ぐこと無く補強したことを特
徴とする既存構造物の補強構造。
1. A frame and column reinforcing structure comprising columns and beams without ancillary walls in an existing reinforced concrete structure or a steel frame reinforced concrete structure, comprising two columns and beams without the ancillary walls. Reinforcing existing structures, characterized in that the joints facing each other are provided with struts, and at least the section of the pillars from the lower end of the struts to the vicinity of the floor slab is wrapped with steel to reinforce without blocking the frame. Construction.
【請求項2】 前記方づえ間を補強材で連結し、前記フ
レームを塞ぐこと無く補強したことを特徴とする請求項
1記載の既存構造物の補強構造。
2. The reinforced structure for an existing structure according to claim 1, wherein the ridges are connected by a reinforcing material and reinforced without blocking the frame.
【請求項3】 既存の鉄筋コンクリート構造物又は鉄骨
鉄筋コンクリート構造物における付帯壁を備えない柱の
補強構造であって、 前記付帯壁を備えない柱と梁との接合部両側に方づえを
設け、前記柱において少なくとも前記方づえ下端から床
スラブまでの区間に鋼板を巻き付けたことを特徴とする
既存構造物の補強構造。
3. A reinforcing structure for a column in an existing reinforced concrete structure or a steel reinforced concrete structure that is not provided with an incidental wall, wherein a directional joint is provided on both sides of the joint between the column not having the incidental wall and the beam. A reinforcing structure for an existing structure, characterized in that a steel plate is wound around at least a section from a lower end of the direction to a floor slab in a pillar.
JP3950296A 1996-02-27 1996-02-27 Reinforcing structure of existing structure Pending JPH09228655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3950296A JPH09228655A (en) 1996-02-27 1996-02-27 Reinforcing structure of existing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3950296A JPH09228655A (en) 1996-02-27 1996-02-27 Reinforcing structure of existing structure

Publications (1)

Publication Number Publication Date
JPH09228655A true JPH09228655A (en) 1997-09-02

Family

ID=12554831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3950296A Pending JPH09228655A (en) 1996-02-27 1996-02-27 Reinforcing structure of existing structure

Country Status (1)

Country Link
JP (1) JPH09228655A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11247463A (en) * 1998-02-27 1999-09-14 Shimizu Corp Aseismic reinforcement to pilotis type rc structure
JP2000154651A (en) * 1998-11-19 2000-06-06 Shimizu Corp Earthquake-resistant reinforcing method and earthquake-resistant reinforcing structure for existing building
JP2010265676A (en) * 2009-05-15 2010-11-25 Nagoya Univ Aseismatic reinforcement member and aseismatic building
CN103306495A (en) * 2013-06-21 2013-09-18 罗海军 Wood structure cutting column reinforcing construction method
JP2016044392A (en) * 2014-08-19 2016-04-04 宇部興産株式会社 Reinforcement structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11247463A (en) * 1998-02-27 1999-09-14 Shimizu Corp Aseismic reinforcement to pilotis type rc structure
JP2000154651A (en) * 1998-11-19 2000-06-06 Shimizu Corp Earthquake-resistant reinforcing method and earthquake-resistant reinforcing structure for existing building
JP2010265676A (en) * 2009-05-15 2010-11-25 Nagoya Univ Aseismatic reinforcement member and aseismatic building
CN103306495A (en) * 2013-06-21 2013-09-18 罗海军 Wood structure cutting column reinforcing construction method
CN103306495B (en) * 2013-06-21 2015-09-09 罗海军 Wooden construction truncated cylinder reinforced construction method
JP2016044392A (en) * 2014-08-19 2016-04-04 宇部興産株式会社 Reinforcement structure

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