JPS63171906A - Method for reinforcing reinforced concrete floor panel of bridge - Google Patents
Method for reinforcing reinforced concrete floor panel of bridgeInfo
- Publication number
- JPS63171906A JPS63171906A JP293587A JP293587A JPS63171906A JP S63171906 A JPS63171906 A JP S63171906A JP 293587 A JP293587 A JP 293587A JP 293587 A JP293587 A JP 293587A JP S63171906 A JPS63171906 A JP S63171906A
- Authority
- JP
- Japan
- Prior art keywords
- reinforced concrete
- deck slab
- slab
- bridge
- 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
- 239000011150 reinforced concrete Substances 0.000 title claims description 49
- 238000000034 method Methods 0.000 title claims description 15
- 230000003014 reinforcing effect Effects 0.000 title description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 230000002787 reinforcement Effects 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Landscapes
- Bridges Or Land Bridges (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］
本発明は、橋梁鉄筋コンクリート床版の補強方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for reinforcing bridge reinforced concrete deck slabs.
［従来の技術］
橋梁等を形成する鉄筋コンクリート床版は長期間の使用
により老朽化して内部に亀裂を生ずるため補強する必要
がある。[Prior Art] Reinforced concrete slabs that form bridges, etc. deteriorate after long-term use and cracks occur inside them, so they need to be reinforced.
従来の橋梁鉄筋コンクリート床版の補強方法を第３図及
び第４図により説明する。A conventional method for reinforcing bridge reinforced concrete slabs will be explained with reference to FIGS. 3 and 4.
第３図は、鋼板接着による橋梁鉄筋コンクリート床版の
補強方法の説明図である。FIG. 3 is an explanatory diagram of a method for reinforcing a bridge reinforced concrete slab by adhering steel plates.
所要間隔を置いて複数配設した橋軸方向に延びる！型鋼
から成る主桁ｌ上に鉄筋コンクリート床版２を構築し、
鉄筋コンクリート床版２上にアスファルト３を敷設した
橋梁が老朽化して内部に亀裂４を生じた鉄筋コンクリー
ト床版２に対し、鉄筋コンクリート床版２の下面に橋軸
方向に延びる鋼板５をエポキシ樹脂系の接着剤等を用い
て接着し、或いは更にアンカーボルト８をエポキシ樹脂
系の接着剤を用いて鉄筋コンクリート床版２内部に埋め
込む。Extends in the direction of the axis of the bridge, with multiple arranged at the required intervals! Construct a reinforced concrete slab 2 on the main girder l made of shaped steel,
A steel plate 5 extending in the bridge axis direction is bonded to the lower surface of the reinforced concrete deck 2 using epoxy resin for a reinforced concrete deck 2 in which asphalt 3 has been laid on the reinforced concrete deck 2 and cracks 4 have developed inside due to deterioration. Alternatively, the anchor bolts 8 are further embedded inside the reinforced concrete slab 2 using an epoxy resin adhesive.
このように鋼板５を下面に接着することにより、鉄筋コ
ンクリート床版２は補強される。By bonding the steel plate 5 to the lower surface in this manner, the reinforced concrete floor slab 2 is reinforced.
第４図は、鋼板５に替え！型鋼７を主桁ｌの中間位置で
且つ橋軸方向に向は配設して鉄筋コンクリート床版２を
下面から支持補強し、Ｉ型ｊｉ１７と主桁１間に橋軸方
向に延びるサポート材８を溶接し或いは！型鋼７及び主
桁ｌに取り付けたブラケット９にボルトＩＯで止めてＩ
型鋼７を接続、固定した縦桁補強法の説明図である。In Figure 4, replace with steel plate 5! A shaped steel 7 is arranged at an intermediate position of the main girder l and oriented in the bridge axis direction to support and reinforce the reinforced concrete deck slab 2 from below, and a support member 8 extending in the bridge axis direction is provided between the I type ji 17 and the main girder 1. Weld or! Fix it to the bracket 9 attached to the type steel 7 and the main girder l with bolts IO.
FIG. 2 is an explanatory diagram of a longitudinal girder reinforcement method in which the shaped steel 7 is connected and fixed.
このように！型鋼７で主桁ｌの中間位置を下面から支持
することにより、鉄筋コンクリート床版２は補強される
。in this way! The reinforced concrete deck slab 2 is reinforced by supporting the intermediate position of the main girder 1 from below with the shaped steel 7.
［発明が解決しようとする問題点］
しかしながら上記従来の橋梁鉄筋コンクリート床版の補
強方法では、補強後の強度を鉄筋コンクリート床版２自
体の強度に依存するようにしているため、橋梁の老朽化
が更に進むと、例えば第３図の鋼板接着方法では鉄筋コ
ンクリート床版２の脆弱化と共に鋼板５がはがれたり或
いは鋼板５の側端部分の鉄筋コンクリート床版２内部に
亀裂（図中亀裂ａ）が生じ鋼板５ごと鉄筋コンクリート
床版２が脱落する畏れがあり、第４図の縦桁補強法では
、主桁１とＩ型鋼７の中間部に亀裂（図中亀裂ｂ）が生
じて該部分の鉄筋コンクリート床版２が陥没する畏れが
ある。[Problems to be Solved by the Invention] However, in the conventional method for reinforcing bridge reinforced concrete deck slabs, the strength after reinforcement is made to depend on the strength of the reinforced concrete deck slab 2 itself, so that the bridge deteriorates further. As the process progresses, for example, in the steel plate bonding method shown in FIG. 3, the reinforced concrete slab 2 becomes weakened and the steel plate 5 peels off, or a crack (crack a in the figure) occurs inside the reinforced concrete slab 2 at the side end portion of the steel plate 5. There is a risk that the reinforced concrete slab 2 will fall off, and in the longitudinal girder reinforcement method shown in Figure 4, a crack (crack b in the figure) will occur in the middle part between the main girder 1 and the I-beam 7, and the reinforced concrete slab 2 in that part will fall off. There is a fear that the government will collapse.
従って、鋼板接着法或いは縦桁補強法も根本的な補強手
段ではなく、上記補強法の施工後も鉄筋コンクリート床
版２の老朽化が進んだときには鉄筋コンクリート床版２
は張替えねばならない。又張替工事は交通を遮断して行
う必要があるため、近年の交通事情を考えた場合に重要
な問題となる。Therefore, neither the steel plate adhesion method nor the longitudinal girder reinforcement method is a fundamental reinforcement method, and even after the above-mentioned reinforcement method is applied, when the reinforced concrete deck slab 2 deteriorates, the reinforced concrete deck slab 2
has to be replaced. Furthermore, since re-covering work must be carried out with traffic blocked, this is an important issue when considering recent traffic conditions.
本発明は上述の実情に鑑み、鉄筋コンクリート床版２を
下面から支持する鋼床版１１を主桁１に取り付けること
により鉄筋コンクリート床版２の張替えを不要とするこ
とができるようにした橋梁鉄筋コンクリート床版の補強
方法を提供することを目的とするものである。In view of the above-mentioned circumstances, the present invention provides a bridge reinforced concrete deck slab that makes it unnecessary to replace the reinforced concrete deck slab 2 by attaching the steel deck slab 11 that supports the reinforced concrete deck slab 2 from below to the main girder 1. The purpose is to provide a reinforcement method for
［問題点を解決するための手段］
本発明は鉄筋コンクリート床版の下面に、該鉄筋コンク
リート床版下面を覆うよう鋼床版を設け、該鋼床版を鉄
筋コンクリート床版を支持する主桁に一体化し、橋梁鉄
筋コンクリート床版の補強方法としたものである。[Means for solving the problems] The present invention provides a steel deck slab on the lower surface of the reinforced concrete deck slab so as to cover the lower surface of the reinforced concrete deck slab, and integrates the steel deck slab into the main girder that supports the reinforced concrete deck slab. This is a method for reinforcing bridge reinforced concrete slabs.
［作 用］
従って本発明では、鉄筋コンクリート床版を、鉄筋コン
クリート床版の下面に設けた鋼床版と主桁で支持するこ
とができるため、鉄筋コンクリート床版が老朽化した場
合でも鉄筋コンクリート床版の脱落は防止される。[Function] Therefore, in the present invention, since the reinforced concrete deck slab can be supported by the steel deck slab and main girder provided on the lower surface of the reinforced concrete deck slab, even if the reinforced concrete deck slab becomes obsolete, the reinforced concrete deck slab can fall off. is prevented.
［実 施 例］ 以下、本発明の実施例を図面を参照して説明する。[Example] Embodiments of the present invention will be described below with reference to the drawings.
第１図及び第２図は本発明の一実施例の説明図である。FIGS. 1 and 2 are explanatory diagrams of one embodiment of the present invention.
鉄筋コンクリート床版２下面の全体をブロック化した鋼
床版１１で覆い、該鋼床版１１を主桁ｌに接合する。The entire lower surface of the reinforced concrete deck slab 2 is covered with a steel deck slab 11 made into blocks, and the steel deck slab 11 is joined to the main girder l.
鋼床版■ｌは、以下の如く構成されている。鉄筋コンク
リート床版２下面と同形状に形成し且つ所要間隔を置い
て複数配設した橋軸方向に延びる補強リブ１２を有する
補強鋼板１３を用いて、各主桁１．１間の鉄筋コンクリ
ート床版２下面を橋軸方向全面に渉って覆う。横軸方向
に延び補強鋼板１３下面及び補強リブ１２に嵌合する上
端１４及び主桁ｌとの接合部を形成する両端１５から成
る逆Ｔ字状の横補強鋼１Ｂを橋軸方向に所要間隔を置き
複数設けて補強鋼板１３下面を支持し、横補強鋼１６の
両端１５を主桁ｌに直接溶接若しくは主桁ｌに設けたブ
ラケット１７にボルト１８で止めて固定する。The steel deck slab ■l is constructed as follows. The reinforced concrete deck slab 2 between each main girder 1.1 is constructed by using a reinforcing steel plate 13 having the same shape as the lower surface of the reinforced concrete deck slab 2 and having a plurality of reinforcing ribs 12 extending in the bridge axis direction arranged at required intervals. Cover the entire bottom surface in the direction of the bridge axis. An inverted T-shaped horizontal reinforcing steel 1B consisting of an upper end 14 extending in the horizontal axis direction and fitting into the lower surface of the reinforcing steel plate 13 and the reinforcing rib 12, and both ends 15 forming a joint with the main girder l is spaced at a required interval in the bridge axis direction. A plurality of horizontal reinforcing steel plates 13 are provided to support the lower surface of the reinforcing steel plate 13, and both ends 15 of the horizontal reinforcing steel 16 are directly welded to the main girder l or fixed by bolts 18 to brackets 17 provided on the main girder l.
このように鉄筋コンクリート床版２の下に補強鋼板１３
と横補強鋼１［１を組合せた鋼床版１１を設け、鋼床版
１１を主桁ｌに取り付けたことにより、鉄筋コリート床
版２は鋼床版１１上に積置されることになり、鉄筋コン
クリート床版２自体に強度がなくても鉄筋コンクリート
床版２は鋼床版１１と主桁ｌで支持される。In this way, the reinforcing steel plate 13 is placed under the reinforced concrete floor slab 2.
By providing a steel deck slab 11 that combines horizontal reinforcement steel 1 [1] and attaching the steel deck slab 11 to the main girder l, the reinforced corriet deck slab 2 will be stacked on the steel deck slab 11. Even if the reinforced concrete deck slab 2 itself has no strength, the reinforced concrete deck slab 2 is supported by the steel deck slab 11 and the main girder l.
従って、鉄筋コンクリート床版２は老朽化した場合でも
脱落しないので張替える必要がなくなり、補修は亀裂に
より生じた隙間を埋める程度で済む。Therefore, even if the reinforced concrete floor slab 2 becomes old, it will not fall off, so there is no need to replace it, and repairs will only need to be made to fill in gaps caused by cracks.
尚、本発明は上述の実施例に限定されるものでなく、鉄
筋コンクリート床版の下面を部分的に支持するようにし
得ること、その池水発明の要旨を逸脱しない範囲内で種
々変更を加え得ることは勿論である。It should be noted that the present invention is not limited to the above-described embodiments, and that the lower surface of the reinforced concrete slab can be partially supported, and that various changes can be made without departing from the gist of the invention. Of course.
［発明の効果］
上記したように、本発明の橋梁鉄筋コンクリ−ト床版の
補強方法によれば、鉄筋コンクリート床版の下に鋼床版
を設けて鉄筋コンクリート床版を支持させているため、
鉄筋コンクリート床版は老朽化した場合でも損壊或いは
脱落することがなく、従って交通を遮断しての床版の張
替えを行う必要がなくなる等の種々の優れた効果を奏し
得る。[Effects of the Invention] As described above, according to the method for reinforcing bridge reinforced concrete deck slabs of the present invention, since the steel deck slab is provided below the reinforced concrete deck slab to support the reinforced concrete deck slab,
Reinforced concrete floor slabs do not break or fall off even when aged, and therefore can provide various excellent effects such as eliminating the need to block traffic to replace the floor slabs.
第１図は本発明の一実施例の説明図、第２図は第１図の
■−■矢視図、第３図は従来例の説明図、第４図は他の
従来例の説明図である。
図中、■は主桁、２は鉄筋コンクリート床版、１１は鋼
床版を示す。Fig. 1 is an explanatory diagram of one embodiment of the present invention, Fig. 2 is a view taken along the ■-■ arrow in Fig. 1, Fig. 3 is an explanatory diagram of a conventional example, and Fig. 4 is an explanatory diagram of another conventional example. It is. In the figure, ■ indicates the main girder, 2 indicates the reinforced concrete deck slab, and 11 indicates the steel deck slab.
Claims (1)
ト床版下面を覆うよう鋼床版を設け、該鋼床版を鉄筋コ
ンクリート床版を支持する主桁に一体化したことを特徴
とする橋梁鉄筋コンクリート床版の補強方法。1) A reinforced concrete deck slab for a bridge, characterized in that a steel deck slab is provided on the lower surface of the reinforced concrete deck slab so as to cover the lower surface of the reinforced concrete deck slab, and the steel deck slab is integrated with a main girder that supports the reinforced concrete deck slab. Reinforcement method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62002935A JP2508677B2 (en) | 1987-01-09 | 1987-01-09 | Reinforcement method of bridge reinforced concrete slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62002935A JP2508677B2 (en) | 1987-01-09 | 1987-01-09 | Reinforcement method of bridge reinforced concrete slab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63171906A true JPS63171906A (en) | 1988-07-15 |
| JP2508677B2 JP2508677B2 (en) | 1996-06-19 |
Family
ID=11543209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62002935A Expired - Lifetime JP2508677B2 (en) | 1987-01-09 | 1987-01-09 | Reinforcement method of bridge reinforced concrete slab |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2508677B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01239208A (en) * | 1988-03-17 | 1989-09-25 | Yoshiyuki Ogushi | Method for reinforcing floor board by means of steel plate |
| JPH01239207A (en) * | 1988-03-17 | 1989-09-25 | Yoshiyuki Ogushi | Method for reinforcing floor board using steel plate |
| JP2005240537A (en) * | 2004-01-30 | 2005-09-08 | Mitsubishi Heavy Ind Ltd | Steel plate deck and method for its reinforceing method |
| JP2017110394A (en) * | 2015-12-16 | 2017-06-22 | 日本鉄塔工業株式会社 | Steel frame deck bridge |
| JP2017214699A (en) * | 2016-05-30 | 2017-12-07 | 東日本旅客鉄道株式会社 | Girder reinforcement structure |
| JP2017218824A (en) * | 2016-06-09 | 2017-12-14 | 東日本旅客鉄道株式会社 | Girder reinforcement structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6164907A (en) * | 1984-09-05 | 1986-04-03 | 日本コンクリ−ト工業株式会社 | Repairing of concrete floor panel by curved plate |
-
1987
- 1987-01-09 JP JP62002935A patent/JP2508677B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6164907A (en) * | 1984-09-05 | 1986-04-03 | 日本コンクリ−ト工業株式会社 | Repairing of concrete floor panel by curved plate |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01239208A (en) * | 1988-03-17 | 1989-09-25 | Yoshiyuki Ogushi | Method for reinforcing floor board by means of steel plate |
| JPH01239207A (en) * | 1988-03-17 | 1989-09-25 | Yoshiyuki Ogushi | Method for reinforcing floor board using steel plate |
| JP2005240537A (en) * | 2004-01-30 | 2005-09-08 | Mitsubishi Heavy Ind Ltd | Steel plate deck and method for its reinforceing method |
| JP2017110394A (en) * | 2015-12-16 | 2017-06-22 | 日本鉄塔工業株式会社 | Steel frame deck bridge |
| JP2017214699A (en) * | 2016-05-30 | 2017-12-07 | 東日本旅客鉄道株式会社 | Girder reinforcement structure |
| JP2017218824A (en) * | 2016-06-09 | 2017-12-14 | 東日本旅客鉄道株式会社 | Girder reinforcement structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2508677B2 (en) | 1996-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |