JP4913005B2 - Steel rivet girder repair method and gibberized synthetic girder constructed thereby - Google Patents
Steel rivet girder repair method and gibberized synthetic girder constructed thereby Download PDFInfo
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- JP4913005B2 JP4913005B2 JP2007258285A JP2007258285A JP4913005B2 JP 4913005 B2 JP4913005 B2 JP 4913005B2 JP 2007258285 A JP2007258285 A JP 2007258285A JP 2007258285 A JP2007258285 A JP 2007258285A JP 4913005 B2 JP4913005 B2 JP 4913005B2
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- girder
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Description
本発明は、鋼リベット桁の補修方法及びそれによって構築されるジベル化合成桁に関するものである。 The present invention relates to a method for repairing a steel rivet girder and a gibberized synthetic girder constructed thereby.
現在用いられている鋼リベット桁は経年化（老朽化）してきており、補修・補強を行うべき時期が到来している。 Currently used steel rivet girders have been aged (aged), and it is time to repair and reinforce them.
図３は従来の鋼リベット桁の構造を示す斜視図、図４はその鋼リベット桁の断面を示す写真、図５はその鋼リベット桁の上面を示す写真である。 FIG. 3 is a perspective view showing the structure of a conventional steel rivet girder, FIG. 4 is a photograph showing a cross section of the steel rivet girder, and FIG. 5 is a photograph showing the top surface of the steel rivet girder.
図３において、１０１はウエブ、１０２はフランジ下面板、１０３はフランジ上面板、１０４はフランジ下面板１０２とフランジ上面板１０３とを接合するリベット、１０５はフランジ上面板１０３に形成されるコンクリートである。
上記したように、従来の鋼リベット桁の多くは経年化（老朽化）してきており、補修・補強を行うべき時期となっている。 As described above, many of the conventional steel rivet girders have been aged (aged), and it is time to repair and reinforce them.
従来、鋼リベット桁の補修方法に、コンクリートを巻き付ける合成桁化がある。 Conventionally, as a method for repairing steel rivet girders, there is a composite girder for winding concrete.
しかし、コンクリートと鋼リベット桁とのずれ止めを配置するのは、溶接性の困難さから難しいとされている。 However, it is considered difficult to dispose the concrete and the steel rivet girders due to the difficulty of weldability.
本発明は、上記状況に鑑みて、従来の鋼リベット桁のリベットを撤去して、そのリベット孔に鉄筋を貫通させた箇所にコンクリートを設置して堅牢なジベル化合成桁を構成する鋼リベット桁の補修方法及びそれによって構築されるジベル化合成桁を提供することを目的とする。 In view of the above situation, the present invention removes a rivet of a conventional steel rivet girder and installs concrete at a location where a reinforcing bar penetrates the rivet hole to constitute a robust gibberized synthetic girder. It is an object of the present invention to provide a repairing method and a gibberized composite girder constructed thereby.
本発明は、上記目的を達成するために、
〔１〕鋼リベット桁の補修方法において、鋼リベット桁のリベットを撤去し、このリベットが設けられていたリベット孔に鉄筋を設置し、この鉄筋の周りにコンクリートを流し込んでコンクリート形成体となし、堅牢なジベル化合成桁を構築することを特徴とする。
In order to achieve the above object, the present invention provides
[1] In the method of repairing steel rivet girders, the rivets of the steel rivet girders are removed, reinforcing bars are installed in the rivet holes provided with the rivets, and concrete is poured around the reinforcing bars to form a concrete formed body. It is characterized by constructing a robust gibberized composite girder.
〔２〕ジベル化合成桁において、ウエブに固定されるフランジ下面板と、このフランジ下面板上に接合されるフランジ上面板を配置した鋼リベット桁の前記ウエブと前記フランジ下面板とを接合するリベット孔と、前記フランジ下面板と前記フランジ上面板とを接合するリベット孔とに鉄筋を配置し、そこにコンクリートを流し、コンクリート形成体を得て構築されることを特徴とする。 [2] A rivet for joining the flange bottom surface plate and the web of a steel rivet girder in which a flange bottom surface plate fixed to the web and a flange top surface plate joined on the flange bottom surface plate are arranged in a gibbled composite girder Reinforcing bars are arranged in the holes and the rivet holes that join the flange lower surface plate and the flange upper surface plate, and concrete is poured there, thereby obtaining a concrete formed body.
本発明によれば、次のような効果を奏することができる。 According to the present invention, the following effects can be achieved.
（１）リベット孔に配置される鉄筋とコンクリートとの付着の度合を向上させることにより、堅牢なジベル化合成桁を構築することができる。 (1) By improving the degree of adhesion between the reinforcing bars arranged in the rivet holes and the concrete, it is possible to construct a robust gibberized composite girder.
（２）鉄筋を配置する孔として従来のリベット孔を用いることができ、施行が容易である。 (2) A conventional rivet hole can be used as a hole for arranging a reinforcing bar, and the enforcement is easy.
（３）ずれ止めとしてのスタッドを溶接する必要がなく、施行が簡便である。 (3) There is no need to weld a stud as a slip stopper, and enforcement is simple.
本発明の鋼リベット桁の補修方法は、鋼リベット桁のリベットを撤去し、このリベットが設けられていたリベット孔に鉄筋を設置し、この鉄筋の周りにコンクリートを流し込んでコンクリート形成体となし、堅牢なジベル化合成桁を構築する。 The steel rivet girder repair method of the present invention is to remove the rivet of the steel rivet girder, install a rebar in the rivet hole where the rivet was provided, and pour concrete around the rebar to form a concrete formed body, Build robust gibberized composite digits.
以下、本発明の実施の形態について詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail.
図１は本発明の実施例の鋼リベット桁の補修方法を示す模式図である。 FIG. 1 is a schematic view showing a method for repairing a steel rivet girder according to an embodiment of the present invention.
（１）まず、図１（ａ）に示すように、ウエブ１には桁の幅方向の左右に配置されるフランジ下面板２，２がリベット３により固定されている。さらに、左右のフランジ下面板２上にはフランジ上面板４が桁の幅方向の左右に配置されるリベット５及びリベット６によって固定されている。 (1) First, as shown in FIG. 1A, flange lower surface plates 2, 2 arranged on the web 1 on the left and right sides in the width direction of the beam are fixed by rivets 3. Further, on the left and right flange lower surface plates 2, the flange upper surface plate 4 is fixed by rivets 5 and rivets 6 arranged on the left and right in the width direction of the spar.
（２）次に、図１（ｂ）に示すように、リベット３、５及び６をそれぞれ撤去する。よれにより、リベット孔７、８及び９が現れる。 (2) Next, as shown in FIG. 1B, the rivets 3, 5 and 6 are removed. By kinking, rivet holes 7, 8 and 9 appear.
（３）次いで、図１（ｃ）に示すように、そのリベット孔７、８及び９に鉄筋１０を配置する。 (3) Next, as shown in FIG. 1 (c), the reinforcing bars 10 are arranged in the rivet holes 7, 8 and 9.
（４）次いで、図１（ｄ）に示すように、コンクリートを流し込んで、コンクリート形成体１１を形成する。 (4) Next, as shown in FIG. 1 (d), concrete is poured into the concrete forming body 11.
このようにして、従来の鋼リベット桁を堅牢なジベル化合成桁へと補修することができる。ここで、「ジベル（鋼材の）」とは、鋼とコンクリートを合成させる構造の桁において、コンクリートと鋼の付着をとるために鋼材の表面に取り付けたずれ止めのことをいう。 In this way, conventional steel rivet girders can be repaired into robust gibberized composite girders. Here, “givel (of steel material)” refers to a detent attached to the surface of a steel material in order to adhere the concrete and steel in a girder having a structure in which steel and concrete are combined.
図２は本発明の実施例のジベル化合成桁を示す断面図である。 FIG. 2 is a cross-sectional view showing a diverized composite girder according to an embodiment of the present invention.
この図において、１２はウエブ、１３，１３は桁の幅方向の左右に配置されるフランジ下面板、１４は左右に配置されるフランジ下面板１３上に配置されるフランジ上面板、１９は従来のリベットと取り替えられた鉄筋であり、リベット孔１５と１６と１７とを貫通するように配置される。その鉄筋の周りにコンクリートを流し込んで、コンクリート形成体１８を構築する。 In this figure, 12 is a web, 13 and 13 are flange lower plates arranged on the left and right in the width direction of the spar, 14 is a flange upper plate arranged on the flange lower plate 13 arranged on the left and right, and 19 is a conventional one. It is a rebar replaced with a rivet and is arranged to penetrate the rivet holes 15, 16 and 17. Concrete is poured around the reinforcing bars to construct the concrete forming body 18.
このように構成したので、従来のリベット孔１５と１６と１７を貫通する鉄筋を有する堅牢なジベル化合成桁を構築することができる。 Since it comprised in this way, the robust | giveed composite girder which has the reinforcing bar which penetrates the conventional rivet holes 15, 16 and 17 can be constructed | assembled.
なお、本発明は上記実施例に限定されるものではなく、本発明の趣旨に基づき種々の変形が可能であり、これらを本発明の範囲から排除するものではない。 In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.
本発明の鋼リベット桁の補修方法は、鋼とコンクリートとの付着の度合を向上させた堅牢なジベル化合成桁として利用可能である。 The method for repairing a steel rivet girder according to the present invention can be used as a robust gibberized synthetic girder in which the degree of adhesion between steel and concrete is improved.
１，１２ ウエブ
２，１３ フランジ下面板
３，５，６ リベット
４，１４ フランジ上面板
７，８，９，１５，１６，１７ リベット孔
１０，１９ 鉄筋
１１，１８ コンクリート形成体
1,12 Web 2,13 Flange bottom plate 3,5,6 Rivet 4,14 Flange top plate 7,8,9,15,16,17 Rivet hole 10,19 Reinforcement 11,18 Concrete formation
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| JP2007258285A JP4913005B2 (en) | 2007-10-02 | 2007-10-02 | Steel rivet girder repair method and gibberized synthetic girder constructed thereby |
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| JP2007258285A JP4913005B2 (en) | 2007-10-02 | 2007-10-02 | Steel rivet girder repair method and gibberized synthetic girder constructed thereby |
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| JP4913005B2 true JP4913005B2 (en) | 2012-04-11 |
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| JPS514334B2 (en) * | 1971-11-11 | 1976-02-10 | ||
| JPS5456219A (en) * | 1977-10-12 | 1979-05-07 | Obayashi Gumi Kk | Steel skeleton reinforced concrete structure |
| JP3127223B2 (en) * | 1994-09-06 | 2001-01-22 | 日下部 昭彦 | Support bolt type sleeper for non-grade floor girder bridge |
| JP2972607B2 (en) * | 1996-10-28 | 1999-11-08 | ショーボンド建設株式会社 | How to reinforce rivet girder |
| JP3786202B2 (en) * | 2002-11-14 | 2006-06-14 | 朝日エンヂニヤリング株式会社 | Floor structure |
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