JP2003136140A - Device for correcting flange buckling of channel shape cross sectional steel stock - Google Patents
Device for correcting flange buckling of channel shape cross sectional steel stockInfo
- Publication number
- JP2003136140A JP2003136140A JP2001328772A JP2001328772A JP2003136140A JP 2003136140 A JP2003136140 A JP 2003136140A JP 2001328772 A JP2001328772 A JP 2001328772A JP 2001328772 A JP2001328772 A JP 2001328772A JP 2003136140 A JP2003136140 A JP 2003136140A
- Authority
- JP
- Japan
- Prior art keywords
- flange
- buckling
- section
- holding
- main body
- 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
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、橋梁の鋼床版用
縦リブなどに用いられるＵリブ（Ｕトラフ形リブ）に代
表される溝形状断面鋼材のフランジの座屈を矯正する装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for correcting buckling of a flange of a steel material having a groove-shaped cross section, which is represented by a U rib (U trough rib) used for a vertical rib for a steel deck of a bridge.
【０００２】[0002]
【従来の技術】例えば、橋梁の鋼床版の下面には、補強
のために縦リブが設けられる。この縦リブには、近年、
軽量化のためにＵ形の断面を有するＵリブ（Ｕトラフ形
リブ）が用いられる。そして、このＵリブは、橋梁の形
状などに合わせて曲げ加工が施される。曲げ加工は、主
に焼き曲げ熱加工法によって行われ、この加工の際には
ねらった加工以外の変形がともなってしまうことがあ
る。2. Description of the Related Art For example, vertical ribs are provided on the lower surface of a steel deck of a bridge for reinforcement. In recent years, this vertical rib has
A U rib (U trough rib) having a U-shaped cross section is used for weight reduction. Then, the U-rib is bent according to the shape of the bridge. Bending is mainly carried out by a hot bending heat processing method, and this processing may involve deformation other than the intended processing.
【０００３】その変形のうちのＵ形の溝形状の側部であ
るフランジに座屈が生じる変形に対しては、図５に示す
治具によって矯正を行っていた。すなわち、鋼材１０１
のフランジ１０３に生じた座屈部１０５をまたいで挟む
ようにして、保持治具１０７を取り付ける。この保持治
具１０７は、フランジ１０３を保持するコの字状断面を
有し、さらに、保持したフランジ１０３の上縁部に沿っ
て、細い開口１０９が形成されている。この開口１０９
からくさび状治具１１１を挿入し、このくさび状治具１
１１を上からハンマーで叩くと、座屈部１０５が矯正さ
れる。Among the deformations, the deformation which causes the buckling of the flange, which is the side portion of the U-shaped groove shape, is corrected by the jig shown in FIG. That is, the steel material 101
The holding jig 107 is attached so as to sandwich the buckling portion 105 generated in the flange 103 of the above. The holding jig 107 has a U-shaped cross section for holding the flange 103, and further, a thin opening 109 is formed along the upper edge of the held flange 103. This opening 109
The wedge-shaped jig 111 is inserted, and the wedge-shaped jig 1
When 11 is hit with a hammer from above, the buckling portion 105 is straightened.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
矯正方法は、人力によりくさび状治具１１１をハンマー
で叩くもので、非効率的で精度も悪かった。この発明
は、以上の課題を解決するためになされたもので、効率
的で精度の良い溝形状断面鋼材のフランジ座屈矯正装置
を提供することを目的とする。However, the conventional straightening method hits the wedge-shaped jig 111 with a hammer manually, which is inefficient and inaccurate. The present invention has been made to solve the above problems, and an object of the present invention is to provide an efficient and accurate flange buckling straightening device for a groove-section steel material.
【０００５】[0005]
【課題を解決するための手段】以上の課題を解決するた
めに、第１の発明は、溝形状断面鋼材の溝形状の側部で
あるフランジに生じた座屈部を矯正するために、本体
と、この本体に設けられフランジの外側から座屈部を押
圧する油圧機構と、前記本体の前記油圧機構をはさんで
両側に設けられフランジを保持するコの字状断面を有す
る保持部と、を備えたことを特徴とする溝形状断面鋼材
のフランジ座屈矯正装置である。In order to solve the above-mentioned problems, a first aspect of the present invention is directed to a body for correcting a buckling portion formed in a flange which is a groove-shaped side portion of a steel material having a groove-shaped cross section. And a hydraulic mechanism provided on the main body for pressing the buckling portion from the outside of the flange, and a holding portion having a U-shaped cross section for holding the flange provided on both sides of the hydraulic mechanism of the main body, A flange buckling straightening device for a groove-shaped steel material having a section.
【０００６】第２の発明は、さらに、前記本体は、平面
形状が四角の枠形状を成し、前記油圧機構は、前記四角
の一辺の下部に突設された取付部に取り付けられ、前記
保持部は、前記四角の前記一辺の両端から延びる二辺の
各先端の下部に、各々一対の爪が形成され、この一対の
爪が、前記フランジを保持する前記コの字状断面を有す
ることを特徴とする溝形状断面鋼材のフランジ座屈矯正
装置である。According to a second aspect of the present invention, the main body has a rectangular frame shape in a plan view, and the hydraulic mechanism is attached to a mounting portion projecting from a lower portion of one side of the square to hold the holding mechanism. The portion has a pair of claws formed at the bottoms of the tips of the two sides extending from both ends of the one side of the square, and the pair of claws has the U-shaped cross section for holding the flange. It is a device for straightening flange buckling of a grooved section steel material.
【０００７】[0007]
【発明の実施の形態】この発明の一実施形態を図１〜図
２に示す。この実施形態において矯正の対象となる溝形
状断面鋼材は、橋梁の鋼床版用縦リブに用いられるＵリ
ブ１、すなわち溝形底部であるウエブ３の両側に立ち上
がるフランジ５を有するＵトラフ形リブである。このＵ
リブ１は、橋梁の形状などに合わせて、焼き曲げ熱加工
法によって曲げ加工が施されることがある。この曲げ加
工には、Ｕリブ１のウエブ３を含む平面内での曲げ加
工、あるいはこのウエブ３を含む面自体を曲面にするキ
ャンバーをつける曲げ加工とがある。これらの焼き曲げ
加工において、フランジ５に座屈による変形が生じ、フ
ランジの外に膨らんだり凹んだりして座屈部分７を形成
してしまうことがあり、本実施形態の装置により矯正す
る。BEST MODE FOR CARRYING OUT THE INVENTION One embodiment of the present invention is shown in FIGS. In this embodiment, the steel material having a groove-shaped cross section to be corrected is a U-rib 1 used for a vertical rib for a steel deck of a bridge, that is, a U-trough-shaped rib having flanges 5 rising on both sides of a web 3 which is a groove-shaped bottom. Is. This U
The rib 1 may be bent according to the shape of the bridge and the like by a bending bending heat processing method. This bending includes bending in the plane including the web 3 of the U-rib 1 or bending with a camber that makes the surface including the web 3 a curved surface. In these baking processes, the flange 5 may be deformed by buckling and may bulge or dent outside the flange to form the buckling portion 7, which is corrected by the apparatus of the present embodiment.
【０００８】（座屈矯正装置）図１及び図２に示す座屈
矯正装置９は、上向きに置かれたＵリブ１の座屈部分７
を矯正するためのもので、本体１１に、フランジ５を保
持する保持部１３、および座屈部を押圧する油圧シリン
ダ１５が設けられる。この本体１１は、四角柱状の材料
で平面形状が四角の枠形状を成す。油圧シリンダ１５
は、本体１１の四角の一辺１７の中央下部に突設された
取付部１９に取り付けられ、ピストン２１の先端がフラ
ンジ５の外側から座屈部７を直角に押圧する姿勢で配置
される。(Buckling Corrector) A buckling corrector 9 shown in FIGS. 1 and 2 has a buckling portion 7 of a U-rib 1 placed upward.
The main body 11 is provided with a holding portion 13 for holding the flange 5 and a hydraulic cylinder 15 for pressing the buckling portion. The main body 11 is made of a quadrangular prism material and has a rectangular frame shape in a plan view. Hydraulic cylinder 15
Is attached to a mounting portion 19 projecting from a central lower portion of one side 17 of a square of the main body 11, and is arranged such that the tip of the piston 21 presses the buckling portion 7 at a right angle from the outside of the flange 5.
【０００９】保持部１３は、本体１１の油圧シリンダ１
５が取り付けられた辺１７の両端から延びる二辺２３の
各先端の下部に、各々一対の爪２５が形成される。この
一対の爪２５は、この辺２３から下方に直角に突設さ
れ、これによりコの字状断面を形成して、フランジ５の
上縁をはさんで保持することができる。したがって、保
持部１３は油圧シリンダ１５をはさんで両側に設けら
れ、換言すれば、フランジ５の２ヶ所が保持された中央
を油圧シリンダ１５が押圧することになる。The holding portion 13 is a hydraulic cylinder 1 of the main body 11.
A pair of claws 25 are formed at the bottoms of the tips of the two sides 23 extending from both ends of the side 17 to which the 5 is attached. The pair of claws 25 project downwardly from the side 23 at a right angle, thereby forming a U-shaped cross section so that the upper edge of the flange 5 can be held. Therefore, the holding portions 13 are provided on both sides of the hydraulic cylinder 15, and in other words, the hydraulic cylinder 15 presses the center where the flange 5 is held at two positions.
【００１０】なお、板厚が６〜８ｍｍの鋼材１に対し、
本装置の望ましい寸法は、両端の爪の間隔ａが１５０〜
２００ｍｍ、ピストン２１の先端の押圧を行う正方形の
一辺の大きさｂが８０〜１００ｍｍである。For steel material 1 having a plate thickness of 6 to 8 mm,
The desirable size of this device is that the distance a between the claws on both ends is 150-
200 mm, the size b of one side of the square that presses the tip of the piston 21 is 80 to 100 mm.
【００１１】（作用）作業員は、装置９の油圧シリンダ
１５を縮めた状態で、爪２５によって、フランジ５の座
屈部７をまたいで挟むようにして保持する。その後に、
油圧シリンダ１５を伸ばし、ピストン２１の先端で座屈
部７を押圧する。座屈部７は、爪２５により両側を保持
され中央部をピストン２１で押圧されることで、矯正さ
れる。(Operation) In a state where the hydraulic cylinder 15 of the apparatus 9 is contracted, the worker holds the buckling portion 7 of the flange 5 by sandwiching it with the claw 25. After that,
The hydraulic cylinder 15 is extended, and the tip of the piston 21 presses the buckling portion 7. The buckling portion 7 is straightened by holding both sides by the claw 25 and pressing the central portion with the piston 21.
【００１２】（他の実施形態）以上の実施形態におて
は、保持部１３は、本体１１の二辺２３、２３の各先端
の下部に、各々一対の爪２５が形成され、各爪は鋼材１
の長手方向に短いものであったが、他の実施形態におい
ては、例えば図４のように、一対の爪２７、２９のうち
フランジ５の内側を保持する爪２７を、鋼材１の長手方
向に長くすることができる。すなわち、この爪２７は長
くして両端のものが一体化する。フランジ５の外側を保
持する爪２９は以上の実施例と同様に短いものとする。(Other Embodiments) In the above-described embodiments, the holding portion 13 has a pair of claws 25 formed at the lower ends of the two ends 23, 23 of the main body 11, respectively. Steel material 1
However, in another embodiment, the claw 27 holding the inside of the flange 5 of the pair of claws 27, 29 is arranged in the longitudinal direction of the steel material 1 in another embodiment, as shown in FIG. 4, for example. Can be long. That is, the claw 27 is lengthened so that the both ends are integrated. The claw 29 that holds the outer side of the flange 5 is short as in the above embodiments.
【００１３】これにより、座屈部７は、長く一体化した
爪２７とピストン２１で、鋼材１の長手方向に長い範囲
で、十分に挟圧されることになり、より十分に矯正され
る。また、以上の実施形態においては、溝形状断面鋼材
はＵリブであったが、他の実施形態においては、他の鋼
材、例えば市販の溝形鋼であっても良い。As a result, the buckling portion 7 is sufficiently clamped by the claw 27 and the piston 21 that are long and integrated in a long range in the longitudinal direction of the steel material 1 and is more sufficiently corrected. Further, in the above embodiments, the groove-shaped cross-section steel material is the U rib, but in other embodiments, other steel materials, for example, commercially available channel steels may be used.
【００１４】[0014]
【発明の効果】以上説明したように、第１、または第２
の発明によれば、保持部に保持されたフランジの座屈部
分を、油圧機構により押圧して矯正できるので、作業が
効率的に、精度良く行うことができる。そしてまた、第
２の発明によれば、さらに、装置全体がシンプルで強固
な枠形状を成しているので、安価で壊れにくい装置を提
供できる。As described above, the first or second
According to the invention, since the buckling portion of the flange held by the holding portion can be pressed and corrected by the hydraulic mechanism, the work can be performed efficiently and accurately. Further, according to the second aspect of the invention, since the entire device has a simple and strong frame shape, it is possible to provide a device that is inexpensive and is not easily broken.
【図１】（Ａ）は、この発明の一実施形態に係る装置の
平面図
（Ｂ）は、加工対象の鋼材を示す斜視図である。1A is a plan view of an apparatus according to an embodiment of the present invention, and FIG. 1B is a perspective view showing a steel material to be processed.
【図２】図１の側面図である。FIG. 2 is a side view of FIG.
【図３】図１の正面図である。FIG. 3 is a front view of FIG.
【図４】他の実施形態に係る装置の正面図である。FIG. 4 is a front view of an apparatus according to another embodiment.
【図５】（Ａ）は、従来例を示す治具の斜視図 （Ｂ）は、（Ａ）の使用状態を示す側面図である。FIG. 5A is a perspective view of a jig showing a conventional example. (B) is a side view showing a usage state of (A).
１ Ｕリブ ３ ウエブ ５ フランジ ７ 座屈部分 ９ 座屈矯正装置 １１ 装置本体 １３ 保持部 １５ 油圧シリンダ １７ 装置本体の四角を構成する一辺 １９ 取付部 ２１ ピストン ２３ 装置本体の両端から延びる二辺 ２５、２７、２９ 爪 １０１ 鋼材（Ｕリブ） １０３ フランジ １０５ 座屈部 １０７ 保持治具 １０９ 開口 １１１ くさび状治具 1 U rib 3 web 5 flange 7 Buckling part 9 Buckling correction device 11 Device body 13 Holder 15 hydraulic cylinder 17 One side forming the square of the device body 19 Mounting part 21 pistons 23 Two sides extending from both ends of the device body 25, 27, 29 nails 101 Steel (U rib) 103 flange 105 Buckling part 107 holding jig 109 opening 111 Wedge jig
Claims (2)
ランジに生じた座屈部を矯正するために、本体と、この
本体に設けられフランジの外側から座屈部を押圧する油
圧機構と、前記本体の前記油圧機構をはさんで両側に設
けられフランジを保持するコの字状断面を有する保持部
と、を備えたことを特徴とする溝形状断面鋼材のフラン
ジ座屈矯正装置。1. A main body and a hydraulic mechanism for pressing the buckling portion from the outside of the flange, which is provided in the main body, in order to correct the buckling portion generated in the flange, which is the side portion of the groove-shaped section steel material. A flange buckling straightening device for a steel material having a groove-shaped cross-section, comprising: a holding portion having a U-shaped cross-section for holding a flange, the holding portion being provided on both sides of the hydraulic mechanism of the main body.
成し、前記油圧機構は、前記四角の一辺の下部に突設さ
れた取付部に取り付けられ、前記保持部は、前記四角の
前記一辺の両端から延びる二辺の各先端の下部に、各々
一対の爪が形成され、この一対の爪が、前記フランジを
保持する前記コの字状断面を有することを特徴とする請
求項１に記載の溝形状断面鋼材のフランジ座屈矯正装
置。2. The main body has a rectangular frame shape in a plan view, the hydraulic mechanism is attached to a mounting portion projecting from a lower portion of one side of the square, and the holding portion is a rectangular shape. 2. A pair of claws are formed in the lower part of each tip of the two sides extending from both ends of the one side, and the pair of claws have the U-shaped cross section for holding the flange. A flange buckling straightening device for a steel material having a groove shape in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001328772A JP2003136140A (en) | 2001-10-26 | 2001-10-26 | Device for correcting flange buckling of channel shape cross sectional steel stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001328772A JP2003136140A (en) | 2001-10-26 | 2001-10-26 | Device for correcting flange buckling of channel shape cross sectional steel stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003136140A true JP2003136140A (en) | 2003-05-14 |
Family
ID=19144781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001328772A Pending JP2003136140A (en) | 2001-10-26 | 2001-10-26 | Device for correcting flange buckling of channel shape cross sectional steel stock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003136140A (en) |
Cited By (10)
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| JP2007054838A (en) * | 2005-08-22 | 2007-03-08 | Jfe Steel Kk | Method for straightening u-shape steel sheet pile having arm part, with press |
| CN103381434A (en) * | 2013-07-19 | 2013-11-06 | 芜湖鑫泰铜业有限公司 | Spool hydraulic correction device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007054838A (en) * | 2005-08-22 | 2007-03-08 | Jfe Steel Kk | Method for straightening u-shape steel sheet pile having arm part, with press |
| JP4687327B2 (en) * | 2005-08-22 | 2011-05-25 | Ｊｆｅスチール株式会社 | Press straightening method for U-shaped steel sheet pile with arms |
| CN103381434A (en) * | 2013-07-19 | 2013-11-06 | 芜湖鑫泰铜业有限公司 | Spool hydraulic correction device |
| CN103381435A (en) * | 2013-07-19 | 2013-11-06 | 芜湖鑫泰铜业有限公司 | Manual spool correction device |
| CN105642706A (en) * | 2016-04-19 | 2016-06-08 | 安徽昌永得机械有限公司 | Excavator bucket rod correction device and correction method |
| CN106270012A (en) * | 2016-08-30 | 2017-01-04 | 宁波思明汽车科技股份有限公司 | A kind of exhaustor Double End welding levelling means and Double End flatening method thereof |
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| CN111926685B (en) * | 2020-08-19 | 2022-02-22 | 中铁二院工程集团有限责任公司 | Shear force conversion component for transversely moving high-speed railway continuous beam and conversion method |
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