JPS6241869A - Reinforcement of existing structure - Google Patents
Reinforcement of existing structureInfo
- Publication number
- JPS6241869A JPS6241869A JP17851585A JP17851585A JPS6241869A JP S6241869 A JPS6241869 A JP S6241869A JP 17851585 A JP17851585 A JP 17851585A JP 17851585 A JP17851585 A JP 17851585A JP S6241869 A JPS6241869 A JP S6241869A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing
- beams
- slab
- reinforcement
- steel
- 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
Links
- 230000002787 reinforcement Effects 0.000 title claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 description 31
- 239000010959 steel Substances 0.000 description 31
- 239000011150 reinforced concrete Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
Landscapes
- Working Measures On Existing Buildindgs (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、既存構造物の梁、スラブの補強方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for reinforcing beams and slabs of existing structures.
（従来技術と問題点）
周知のように既存建築構造物では、用途の変更あるいは
機器の新設、増設などにより構造物の梁あるいはスラブ
の負担する荷重が変動し、建築当時の設ｈ］荷重を超過
する事態が発生する。(Prior art and problems) As is well known, in existing building structures, the load borne by the beams or slabs of the structure fluctuates due to changes in use or the installation or addition of new equipment. A situation in which the amount is exceeded occurs.
超過状態での使用は、梁、スラブに過剰な荷重が加わり
、それ自体の撓みやひび割れなどを生じて耐力の低下が
懸念されるため、何らかの方法により補強が必要となる
。If the beams and slabs are used in excessive conditions, excessive loads will be applied to the beams and slabs, causing the beams and slabs to bend or crack, leading to a decrease in proof strength, so some method of reinforcement will be required.
従来、このような場合の補強方法としては、鉄筋、鉄骨
などの補強祠を梁またはスラブに添設して、コンクリー
トを打ち増すことで対処していたが、補強部分と既存部
分との一体性を確保するためには、単に打ち増しだけで
は不十分なため、既存部分のはつり出しなどを伴うため
、施工が面倒で工費が嵩むという問題があった。Conventionally, the reinforcement method in such cases was to attach reinforcement shrines such as reinforcing bars or steel frames to the beams or slabs and pour additional concrete, but the integrity of the reinforced part and the existing part was In order to ensure this, it is not enough to simply add more hammering, but it also involves protruding the existing parts, which poses the problem of making construction cumbersome and increasing construction costs.
この発明は、このような問題点に鑑みてなされたもので
あって、その目的とするところは、施工が簡単で月つ経
済的な既存構造物の補強方法を提供することにある。The present invention has been made in view of these problems, and its purpose is to provide a method for reinforcing existing structures that is easy to implement and economical in terms of monthly costs.
（問題点を解決するための手段）
上記目的を達成するため、この発明は既存構造物の梁、
スラブの補強方法において、少くとも梁。(Means for Solving the Problems) In order to achieve the above object, the present invention provides beams of existing structures,
In the reinforcement method of slabs, at least beams.
スラブの下面に近接して支点を設け、両端部をこれらの
梁、スラブの支持部材または該梁、スラブの端部に定着
する補強線材を付設し、この補強線材を緊張することに
より梁、スラブに上向きの力を付与することを特徴とす
る。A fulcrum is provided close to the bottom surface of the slab, and reinforcing wires are attached to both ends of these beams, supporting members of the slab, or the ends of the beams and slabs, and by tensioning this reinforcing wire, the beams and slabs are It is characterized by imparting upward force to.
（実施例および作用）
以下、この発明の好適な実施例について添附図面を参照
にして詳細に説明する。(Embodiments and Effects) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
尚、以下の説明では同−若しくは相当で−る部分には同
符号を用いる。In the following description, the same reference numerals are used for the same or equivalent parts.
第１図から第３図は、この発明に係る既存構造物の補強
方法の第１実施例を示しており、この実施例では既存構
造物の鉄骨梁１を補強対象としている。1 to 3 show a first embodiment of a method for reinforcing an existing structure according to the present invention, and in this embodiment, a steel beam 1 of an existing structure is targeted for reinforcement.
同図に示す補強方法では、両端を１−１ ｍ 製の支持
部材２，２に支持された１スパンの鉄骨梁１を補強する
ため、鉄骨梁１の両側面に沿うにうにして２本の補強線
材６，６を付設する。In the reinforcement method shown in the figure, in order to reinforce a one-span steel beam 1 whose both ends are supported by support members 2, 2 made of 1-1 m thick, two steel beams are installed along both sides of the steel beam 1. The reinforcing wire rods 6, 6 are attached.
補強線材６は、例えばアンボンドＰＣ鋼月（型鋼線、撚
鋼線）、不調性高性能連続繊維（炭素繊組、アラミド繊
維）、およびこれらの複合線材などが使用され、補強す
べき荷重に対して本数や種類が適宜選択される。鉄骨梁
１の下面中央部分には、これに近接して２個所の支点３
，３が設（プられ、補強線材６の両端は鉄骨梁１の端部
まで延び、その上面に近接した個所で上記支持部材２．
２にそれぞれ定着される。The reinforcing wire 6 is made of, for example, unbonded PC steel wire (shaped steel wire, twisted steel wire), high-performance continuous fibers (carbon fiber, aramid fiber), composite wires thereof, etc., and is suitable for the load to be reinforced. The number and type are selected accordingly. At the center of the lower surface of the steel beam 1, there are two fulcrums 3 close to it.
, 3 are provided, and both ends of the reinforcing wire rod 6 extend to the end of the steel beam 1, and the supporting members 2.
2 respectively.
支点３の構造例を第２図に示す。An example of the structure of the fulcrum 3 is shown in FIG.
同図に示す構造は、鉄骨材１の下面フランジの両端に溶
着された一対のプレート８，８と、これを補強支持する
りブプレート９，９と、各プレート８．８の下面に突設
されたガイドプレー１〜１１゜１１と、ガイドプレート
１１．１１間に挾み込まれた台座１０とからなり、該台
座１０の下面は曲面となっている。The structure shown in the figure includes a pair of plates 8, 8 welded to both ends of the lower flange of the steel frame 1, rib plates 9, 9 that reinforce and support these plates, and rib plates 9, 9 that protrude from the lower surface of each plate 8. It consists of guide plates 1 to 11 degrees 11 and a pedestal 10 sandwiched between the guide plates 11 and 11, and the lower surface of the pedestal 10 is a curved surface.
補強Ｉ！ｉｌ材６は鉄骨梁１の下側ではガイドプレート
１１間に収納され、これによって側方への移動が規制さ
れるとともに、線材６と台座１ｏの接触した部分が支点
３どなる。Reinforcement I! The IL material 6 is housed between the guide plates 11 on the lower side of the steel beam 1, thereby restricting its lateral movement, and the contact portion between the wire material 6 and the pedestal 1o becomes the fulcrum 3.
定着部の一例を第３図に示す。An example of the fixing section is shown in FIG.
この例では、支持部材２に補強プレート５を固着し、鉄
骨梁１の端部上面フランジ２０と、補強プレート５間に
斜交して固着された定着プレート４と、定着プレート４
の補強用のりブプレート１２とで定着部を構成している
。In this example, the reinforcing plate 5 is fixed to the support member 2, and the fixing plate 4 is fixed diagonally between the end upper flange 20 of the steel beam 1 and the reinforcing plate 5.
The reinforcing glue plate 12 constitutes a fixing section.
鉄骨梁１の補強は、上記ガイドプレート１１内に補強線
材６を収納し、線材６の両端を定着プレート４の孔部に
挿通し、一方の定着プレート４から２つの支点３を通っ
て他方の定着板４に至るように配置した後、両端にジヤ
ツキを取付けて、ジヤツキを駆動することにより、補強
線材６を緊張することによって行なわれる。緊張は補強
線材６を両端から同時に行なうか、あるいは片端ずつ行
ってもよく、所定の緊張力が加えられた状態で補張線材
６の両端を定着具７を介して定着プレート４に係止する
と施工が終了する。To reinforce the steel beam 1, a reinforcing wire 6 is housed in the guide plate 11, and both ends of the wire 6 are inserted into the holes of the fixing plate 4, and the reinforcing wire 6 is inserted from one fixing plate 4 through the two fulcrums 3 to the other. After arranging the reinforcing wire 6 to reach the fixing plate 4, jacks are attached to both ends and the jacks are driven to tension the reinforcing wire 6. The tensioning may be done from both ends of the reinforcing wire 6 at the same time or from one end at a time, and when both ends of the reinforcing wire 6 are locked to the fixing plate 4 via the fixing device 7 with a predetermined tension applied, Construction is completed.
このようにして緊張された鉄骨梁１には、支点３の位置
で上向きの力が付与される。An upward force is applied to the steel beam 1 tensioned in this manner at the fulcrum 3.
この上向きの力は、鉄骨梁１に加わる荷重と逆向きのた
め、梁１に荷重がかかった際に、荷重と相殺される。This upward force is in the opposite direction to the load applied to the steel beam 1, so when the load is applied to the beam 1, it cancels out the load.
従って、鉄骨梁１で負担すべき荷重は、既存の状態の荷
重負担とほぼ同程度で済むことになる。Therefore, the load to be borne by the steel beam 1 will be approximately the same as the load in the existing state.
第４図は定着部分の他の構造例を示しており、この構造
は既存の鉄骨梁１の端部耐力に余裕がある場合に適用さ
れる。FIG. 4 shows another example of the structure of the anchoring part, and this structure is applied when the end strength of the existing steel beam 1 is sufficient.
同図に示す定着部は、鉄骨梁１の端部近傍の上面フラン
ジに幅方向に突出するプレート１３を溶着し、これに補
強線材６を挿通するルーズホール２１を穿設するととも
に、プレート１３上に傾斜状態で定着プレート４を固着
し、且つプレート１３および定着プレート４をそれぞれ
補強プレート１４．１５．１６で支持している。The fixing section shown in the figure has a plate 13 protruding in the width direction welded to the upper flange near the end of the steel beam 1, a loose hole 21 through which the reinforcing wire 6 is inserted, and a loose hole 21 on the plate 13. The fixing plate 4 is fixed to the fixing plate 4 in an inclined state, and the plate 13 and the fixing plate 4 are supported by reinforcing plates 14, 15, and 16, respectively.
定着部分をこのような構造としても上記実施例と同じ作
用が得られる。Even if the fixing portion has such a structure, the same effect as in the above embodiment can be obtained.
第５図は鉄骨梁１の２スパンを一度に補強する場合を示
しており、この場合には長手方向に隣接する鉄骨梁１，
１間の中心部上面にも支点３を設け、２スパン分の補強
線材６を鉄骨梁１，１の両側に沿って２本付設する。Figure 5 shows the case where two spans of the steel beam 1 are reinforced at once; in this case, the longitudinally adjacent steel beams 1,
A fulcrum 3 is also provided on the upper surface of the center of the steel beams 1, and two reinforcing wire rods 6 for two spans are attached along both sides of the steel beams 1,1.
なお、上記実施例で説明した鉄骨梁１の下面中心部近傍
に設けた支点３は、中心線上に１個所だけ設【プてもに
＜、また、３個所以上設けてもよい。Note that the fulcrum 3 provided near the center of the lower surface of the steel beam 1 described in the above embodiment may be provided at only one location on the center line, or may be provided at three or more locations.
第６図から第９図は、この発明に係る既存構造物の補強
方法の他の実施例を示しており、この実施例の補強対象
は鉄筋コンクリート梁３０である。6 to 9 show another embodiment of the method for reinforcing an existing structure according to the present invention, and the object to be reinforced in this embodiment is a reinforced concrete beam 30.
同図に示す補強方法は、両端をこれと直交する他の梁と
柱で構成した支持部材２，２に支持された１スパンの鉄
筋コンクリート梁３０を補強する場合を例示しており、
補強線材６は、この梁３０の両側面に沿って２本付設さ
れる。The reinforcement method shown in the figure exemplifies the case of reinforcing a one-span reinforced concrete beam 30 supported by supporting members 2, 2, each of which has both ends orthogonal to the other beams and columns.
Two reinforcing wire rods 6 are attached along both sides of this beam 30.
補強線材６の支点３は、コンクリート梁３０のほぼ中心
線上に１個所設けられているとともに、その両端は支持
部材２にそれぞれ定着される。The fulcrum 3 of the reinforcing wire 6 is provided at one location approximately on the center line of the concrete beam 30, and both ends thereof are fixed to the support member 2, respectively.
支点３部分の一例を第８図に示す。An example of the three fulcrum portions is shown in FIG.
同図に示す例では、鉄筋コンクリート梁３０のほぼ中心
に沿って、その幅よりも長い１−１形断面の鋼材３１を
直交するようにしてホールインアンカー３２で固定し、
鋼材３１の両端下面にこれと直交する一対のガイドプレ
ート１１を突設し、ガイドプレート１１．１１間に台座
１０を挿入して溶着する。In the example shown in the figure, a steel member 31 with a 1-1 cross section that is longer than the width of the reinforced concrete beam 30 is fixed with a hole-in anchor 32 along the center of the reinforced concrete beam 30 in a perpendicular manner.
A pair of guide plates 11 perpendicular to the lower surfaces of both ends of the steel material 31 are protruded, and a pedestal 10 is inserted between the guide plates 11 and 11 and welded.
補強線材６は台座１０の下面と接してガイドプレート１
１間に収容され、上述した実施例と同様に台座１０との
接触点が支点３となる。The reinforcing wire 6 is in contact with the lower surface of the pedestal 10 and the guide plate 1
1, and the point of contact with the pedestal 10 serves as the fulcrum 3, similar to the embodiment described above.
一方、定着部分は第９図に示すように構成される。On the other hand, the fixing section is constructed as shown in FIG.
定着部分は、支持部材２の梁部分にコアボーリングによ
って貫通孔３３を穿設し、貫通孔３３内にポリエチレン
、ゴムなどの材料で形成した保護チューブ３４を挿入し
、定着プレート４には補強用線材６よりも少し大径の孔
部を設けて、支持部材２の外側に密着しておく。
ノ鉄筋コンクリート梁３０の
補強方法は、補強線材６を一方の定着プレー１〜４の孔
部と保護チコーブ３４とに挿通し、支点３を経て他方の
定着プレート４に到達でるように配置した後、上記実施
例と同様にジヤツキを用いて緊張し、定着具７によって
両端を定着プレート４，４に固定して行なわれ、上記実
施例と同様な作用効果が得られる。For the fixing part, a through hole 33 is bored in the beam part of the support member 2 by core boring, a protective tube 34 made of a material such as polyethylene or rubber is inserted into the through hole 33, and a reinforcing tube is inserted into the fixing plate 4. A hole portion having a diameter slightly larger than that of the wire rod 6 is provided so as to be in close contact with the outside of the support member 2.
The method for reinforcing the reinforced concrete beam 30 is to insert the reinforcing wire 6 into the holes of one of the fixing plates 1 to 4 and the protective tip plate 34, arrange it so that it can reach the other fixing plate 4 via the fulcrum 3, and then As in the above embodiment, tension is applied using jacks, and both ends are fixed to the fixing plates 4, 4 using the fixing device 7, and the same effects as in the above embodiment can be obtained.
また、鉄筋コンクリート梁３０も第１０図に示すような
方法で、複数のスパンに渡る梁３０，３０を一度に補強
することもできる。Further, the reinforced concrete beams 30 can also be reinforced at the same time over a plurality of spans by a method as shown in FIG.
第１１図から第１３図は、この発明に係る既存構造物の
補強方法のさらに別の実施例を示しており、この実施例
での補強対象は鉄筋コンクリート製のスラブ４０である
。11 to 13 show yet another embodiment of the method for reinforcing an existing structure according to the present invention, and the object to be reinforced in this embodiment is a slab 40 made of reinforced concrete.
同図に示す補強方法は、両端をこれと直交する梁からな
る支持部材２，２に支持された１スパンのスラブ４０を
補強する場合を例示しており、補強線材６は、スラブ４
０の下面に沿って付設される。The reinforcing method shown in the figure is an example of reinforcing a one-span slab 40 whose both ends are supported by support members 2, 2 made up of beams perpendicular to the slab 40.
It is attached along the bottom surface of 0.
補強線材６は、スラブ４０のスパン間の中心線Ｃを挾ん
で、その両側の等間隔点に２個所の支点３．３が設けら
れると−ともに、スラブ４０の下面に沿って水平方向に
適宜本数が配置され、線材６の両端は支持部材２．２に
定着される。The reinforcing wire rod 6 is provided with two supporting points 3.3 at equally spaced points on both sides of the centerline C between the spans of the slab 40, and horizontally as appropriate along the lower surface of the slab 40. A number of wire rods 6 are arranged, and both ends of the wire rod 6 are fixed to the support member 2.2.
支点３部分の一例を第１２図に示す。An example of the three fulcrum portions is shown in FIG. 12.
この例では、スラブ４０の下面にパイプの両端にプレー
ト材を固着した間隔保持材４１を、ホールインアンカー
３２によって固設し、間隔保持材４１の下端プレートに
、補強線材６と直交する丸鋼４２を固着しており、補強
線材６と丸鋼４２とが接する点が支点３となる。In this example, a spacing member 41 with plate materials fixed to both ends of the pipe is fixed to the lower surface of the slab 40 using a hole-in anchor 32, and a round steel plate perpendicular to the reinforcing wire 6 is attached to the lower end plate of the spacing member 41. 42 is fixed, and the point where the reinforcing wire rod 6 and the round bar 42 touch becomes the fulcrum 3.
定着部分の構造例を第１３図に示す。An example of the structure of the fixing portion is shown in FIG.
この構造例は上記鉄筋コンクリート梁３０の定着部分と
同じであり、貫通孔３３．保護チューブ３４および定着
板４とから構成されている。This structural example is the same as the anchoring part of the reinforced concrete beam 30 described above, and has through holes 33. It is composed of a protective tube 34 and a fixing plate 4.
スラブ４０の補強方法は、上記鉄骨梁１．鉄筋コンクリ
ート梁３０と同じように、補強線材６を緊張して、スラ
ブ４０に上向きの力を付与することで行なわれる。The method for reinforcing the slab 40 is as described in the above steel beam 1. Similar to the reinforced concrete beam 30, this is done by tensioning the reinforcing wire 6 and applying upward force to the slab 40.
また、第１４図に示すように、複数のスパンに跨がるス
ラブ４０を一度に補強することも可能である。Furthermore, as shown in FIG. 14, it is also possible to reinforce slabs 40 spanning multiple spans at once.
なお、上記実施例では梁またはスラブの補強方法を個別
に説明したが、これら双方を同時に補強することも勿論
可能である。In addition, although the method of reinforcing the beam or the slab was explained separately in the above embodiment, it is of course possible to reinforce both of them at the same time.
（発明の効果）
以上、実施例で詳細に説明したように、この発明に係る
既存構造物の補強方法によれば、用途変更などによって
生じる梁、スラブの荷重増に対して、補強線材を付設し
て緊張するという化較的簡単な構成で対応でき、施工も
容易なため経済的効果は極めて大ぎい。(Effects of the Invention) As described above in detail in the embodiments, according to the method for reinforcing existing structures according to the present invention, reinforcing wires are attached to the beams and slabs to cope with the increase in load on beams and slabs caused by changes in use, etc. It can be handled with a relatively simple structure that does not require tension, and the economical effects are extremely large because it is easy to construct.
また、荷重増に対しては補強線Ｈの材質１本数と緊張力
とを適宜選択できるため、再度の用途変更など幅広い荷
重増に対応できる。In addition, since the number of materials and the tension of the reinforcing wire H can be appropriately selected in response to an increase in load, it is possible to respond to a wide range of increases in load, such as changing the use again.
第１図から第３図は本発明方法の第１実施例を示してお
り、第１図はその全体図、第２図はその支点部の詳細図
、第３図はその定着部の詳細部、第１図は定着部の他の
例を示す要部説明図、第５図は同方法を複数スパンに適
用した場合の説明図である。
第６図から第９図は本発明方法の第２実施例を示してお
り、第６図はその側面図、第７図はその下面図、第８図
はその支点部の詳細図、第９図はその定着部の詳細図、
第１０図は同方法を複数スパンに適用した場合の説明図
である。
第１１図から第１４図は、本発明方法の第３実施例を示
しており、第１１図はぞの側面図、第１２図はその支点
部の詳細図、第１３図はその定着部の詳細図、第１４図
は同方法を複数スパンに適用した場合の説明図である。
１・・・・・・・・・鉄骨梁 ２・・・・・・・
・・支持部材３・・・・・・・・・支 点 ４・
・・・・・・・・定着プレート５・・・・・・・・・補
強プレート ６・・・・・・・・・補強線材７・・・・
・・・・・定着具 ８・・・・・・・・・プレー
ト９・・・・・・・・・リブプレー１−１０・・・・・
・台 座１１・・・・・・ガイドプレート
１２・・・・・・リブプレート １３・・・・・・プレ
ート１４、．１５．１６・・・・・・補強プレー１へ２
０・・・・・・上面７ランジ ２１・・・・・・ルーズ
ホール３０・・・・・・鉄筋コンクリート梁
３１・・・・・・鋼 材
３２・・・・・・ホールインアンカー
３３・・・・・・貫通孔 ３４・・・・・・保護
チコーブ４０・・・・・・スラブ ７１１・・・
・・・間隔保持材７′Ｉ２・・・・・・丸 鋼1 to 3 show a first embodiment of the method of the present invention, FIG. 1 is an overall view thereof, FIG. 2 is a detailed view of its fulcrum, and FIG. 3 is a detailed view of its fixing part. , FIG. 1 is an explanatory diagram of the main part showing another example of the fixing section, and FIG. 5 is an explanatory diagram when the same method is applied to a plurality of spans. 6 to 9 show a second embodiment of the method of the present invention, in which FIG. 6 is a side view, FIG. 7 is a bottom view, FIG. 8 is a detailed view of the fulcrum, and FIG. The figure is a detailed diagram of the fixing part.
FIG. 10 is an explanatory diagram when the same method is applied to multiple spans. Figures 11 to 14 show a third embodiment of the method of the present invention, with Figure 11 being a side view, Figure 12 being a detailed view of the fulcrum, and Figure 13 being the fixing part. The detailed diagram, FIG. 14, is an explanatory diagram when the same method is applied to multiple spans. 1... Steel beam 2...
・・Support member 3・・Fullin point 4・
...Fixing plate 5...Reinforcement plate 6...Reinforcement wire 7...
...Fixer 8...Plate 9...Rib play 1-10...
- Pedestal 11... Guide plate 12... Rib plate 13... Plate 14, . 15.16・・・・・・Reinforcement play 1 to 2
0...Top surface 7 lunge 21...Loose hole 30...Reinforced concrete beam 31...Steel material 32...Hole-in anchor 33... ...Through hole 34...Protective chicobe 40...Slab 711...
... Spacing member 7'I2 ... Round steel
Claims (3)
くとも該梁、スラブの下面に近接して支点を設け両端部
をこれらの梁、スラブの支持部材または梁、スラブの端
部に定着する補強線材を付設し、該補強線材を緊張する
ことにより該梁、スラブに上向きの力を付与することを
特徴とする既存構造物の補強方法。(1) In the method of reinforcing beams and slabs of existing structures, a fulcrum is provided at least close to the bottom surface of the beam or slab, and both ends are fixed to supporting members of these beams or slabs or to the ends of the beams or slabs. A method for reinforcing an existing structure, which comprises attaching a reinforcing wire to the beam and applying tension to the beam or slab by applying tension to the reinforcing wire.
強線材を該梁の両側面に沿って複数本付設することを特
徴とする特許請求の範囲第１項記載の既存構造物の補強
方法。(2) The existing structure according to claim 1, wherein the reinforcement object of the existing structure is a beam, and a plurality of the reinforcing wires are attached along both sides of the beam. Reinforcement method.
記補強線材を該スラブの下面に沿って付設することを特
徴とする特許請求の範囲第１項記載の既存構造物の補強
方法。(3) The method for reinforcing an existing structure according to claim 1, wherein the object to be reinforced in the existing structure is a slab, and the reinforcing wire is attached along the lower surface of the slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17851585A JPS6241869A (en) | 1985-08-15 | 1985-08-15 | Reinforcement of existing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17851585A JPS6241869A (en) | 1985-08-15 | 1985-08-15 | Reinforcement of existing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6241869A true JPS6241869A (en) | 1987-02-23 |
| JPH0542553B2 JPH0542553B2 (en) | 1993-06-28 |
Family
ID=16049820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17851585A Granted JPS6241869A (en) | 1985-08-15 | 1985-08-15 | Reinforcement of existing structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6241869A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6421174A (en) * | 1987-07-16 | 1989-01-24 | Takenaka Komuten Co | Method of reinforcing floor |
| JPS6462558A (en) * | 1987-09-01 | 1989-03-09 | Ohbayashi Corp | Method of reinforcing existing structure |
| JPH02161074A (en) * | 1988-12-12 | 1990-06-20 | Shimizu Corp | Method of reinforcing existing slab |
| KR100581981B1 (en) * | 2004-04-26 | 2006-05-25 | 주식회사 도화구조 | Post-Tension Steel Wire Structure For Reinforced Concrete Beam |
| KR100648046B1 (en) | 2004-07-05 | 2006-11-23 | 강신량 | Beam and Girder Reinforcing Apparatus using External Post-Tension and Reinforcing Method using the same |
| KR100743864B1 (en) * | 2005-02-02 | 2007-07-30 | 김두희 | Slab Strength Reinforcement Structure Using Strand and Its Method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5134519A (en) * | 1974-09-17 | 1976-03-24 | Yataro Togashi | HOKYO BARI |
| JPS58138864A (en) * | 1982-02-15 | 1983-08-17 | フジタ工業株式会社 | Reinforcement of small beam |
-
1985
- 1985-08-15 JP JP17851585A patent/JPS6241869A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5134519A (en) * | 1974-09-17 | 1976-03-24 | Yataro Togashi | HOKYO BARI |
| JPS58138864A (en) * | 1982-02-15 | 1983-08-17 | フジタ工業株式会社 | Reinforcement of small beam |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6421174A (en) * | 1987-07-16 | 1989-01-24 | Takenaka Komuten Co | Method of reinforcing floor |
| JPS6462558A (en) * | 1987-09-01 | 1989-03-09 | Ohbayashi Corp | Method of reinforcing existing structure |
| JPH0512505B2 (en) * | 1987-09-01 | 1993-02-18 | Obayashi Constr Co Ltd | |
| JPH02161074A (en) * | 1988-12-12 | 1990-06-20 | Shimizu Corp | Method of reinforcing existing slab |
| KR100581981B1 (en) * | 2004-04-26 | 2006-05-25 | 주식회사 도화구조 | Post-Tension Steel Wire Structure For Reinforced Concrete Beam |
| KR100648046B1 (en) | 2004-07-05 | 2006-11-23 | 강신량 | Beam and Girder Reinforcing Apparatus using External Post-Tension and Reinforcing Method using the same |
| KR100743864B1 (en) * | 2005-02-02 | 2007-07-30 | 김두희 | Slab Strength Reinforcement Structure Using Strand and Its Method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0542553B2 (en) | 1993-06-28 |
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