JPS6314902A - Reinforcement of reinforced concrete floor panel of bridge - Google Patents
Reinforcement of reinforced concrete floor panel of bridgeInfo
- Publication number
- JPS6314902A JPS6314902A JP15756386A JP15756386A JPS6314902A JP S6314902 A JPS6314902 A JP S6314902A JP 15756386 A JP15756386 A JP 15756386A JP 15756386 A JP15756386 A JP 15756386A JP S6314902 A JPS6314902 A JP S6314902A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcement
- reinforced concrete
- bridge
- floor panel
- concrete floor
- 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
- 239000011150 reinforced concrete Substances 0.000 title claims description 7
- 230000002787 reinforcement Effects 0.000 title description 5
- 239000011372 high-strength concrete Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 239000004567 concrete Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011414 polymer cement Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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］
鋼橋においては、塩害等で鉄筋コンクリート床版が傷ん
だ場合には補強する必要がある。従来の補強方法として
は、第２図に示すように、旧床版ｌの表面部を切削した
後補強用コンクリート２を現場打ちするようにしている
。尚３は主桁である。[Prior Art] In steel bridges, if the reinforced concrete slab is damaged due to salt damage, etc., it is necessary to reinforce it. As shown in FIG. 2, the conventional reinforcing method involves cutting the surface of the old deck l and then pouring reinforcing concrete 2 on-site. Note that 3 is the main digit.
［発明が解決しようとする問題点］
しかしながら、斯かる従来の補強方法では、強度を確実
にアップさせるためには、補強用コンクリート２を相当
量厚くしなければならない。[Problems to be Solved by the Invention] However, in this conventional reinforcing method, in order to reliably increase the strength, the reinforcing concrete 2 must be made considerably thicker.
一般に切削前の旧床版１の厚みをＨとした時、補強後の
厚みはＨ＋αとなる。そのため、補強前より死荷重が増
加する問題があった。Generally, when the thickness of the old floor slab 1 before cutting is H, the thickness after reinforcement is H+α. Therefore, there was a problem that the dead load increased compared to before reinforcement.
本発明はこのような実情に鑑み、死荷重を増加させない
ようにして版を補強しようとするものである。In view of these circumstances, the present invention aims to reinforce the plate without increasing the dead load.
［問題点を解決するだめの手段］
本発明では、補強すべき鉄筋コンクリート床版の表面部
を所要量切削し、しかる後該床版上に高強度コンクリー
ト板を設置して両者を接着するようにしている。[Means for solving the problem] In the present invention, the required amount of the surface of the reinforced concrete slab to be reinforced is cut, and then a high-strength concrete plate is installed on the slab and the two are bonded together. ing.
［作 用］
従って、現場でのコンクリート打設作業が不要になるば
かりでなく、床版の厚みら抑えられしかも死荷重も増加
させなくて済む。[Function] Therefore, not only does concrete pouring work on site become unnecessary, but also the thickness of the slab can be suppressed, and there is no need to increase dead load.
［実 施 例］ 以下、図面を参照して本発明の詳細な説明する。[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図に示すように、本発明では、例えばウォータージ
ェット切断機等を用いて旧床版１の表面部を所要量切削
した後、該切削面上に、例えばポリマーセメントを正大
成形してなる高強度（プレハブ）コンクリート板４を設
置して接着剤５により両者を接着させるものである。As shown in FIG. 1, in the present invention, after cutting the required amount of the surface of the old floor slab 1 using, for example, a water jet cutting machine or the like, for example, polymer cement is formed on the cut surface to size. A high-strength (prefabricated) concrete plate 4 is installed and the two are bonded together using an adhesive 5.
旧床版１と高強度コンクリート板４との接着剤５として
は例えばモルタルを使用し、この場合、モルタルを打設
した後に高強度コンクリート板４を設置しても、或いは
高強度コンクリート板４を設置した後に、高強度コンク
リート板４に穿設しておいた注入孔を利用して、両者の
隙間にモルタルを注入するようにしてもよい。For example, mortar is used as the adhesive 5 between the old floor slab 1 and the high-strength concrete plate 4, and in this case, even if the high-strength concrete plate 4 is installed after placing the mortar, or the high-strength concrete plate 4 is After installation, mortar may be injected into the gap between the high-strength concrete plate 4 using an injection hole drilled in the high-strength concrete plate 4.
このように、高強度コンクリート板４を使用することで
、従来の如き現場打ちの補強用コンクリート２を不要に
てき、床版厚を厚くすることなく旧床版１を補強するこ
とができる。この場合、補強前の旧床版１の厚さと補強
後の厚さを同じに、即ちＨにすることができる。又これ
によって、従来のような死荷重増加の問題もなくなる。In this way, by using the high-strength concrete plate 4, there is no need for the conventional reinforcing concrete 2 cast on site, and the old floor slab 1 can be reinforced without increasing the thickness of the floor slab. In this case, the thickness of the old floor slab 1 before reinforcement and the thickness after reinforcement can be made the same, that is, H. This also eliminates the conventional problem of increased dead weight.
尚、本発明は前記実施例にのみ限定されるものではなく
、本発明の要旨を逸脱しない限り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 embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.
［発明の効果］
以上説明したように、本発明の橋梁鉄筋コンクリート床
版の補強方法によれば、高強度コンクリート板を用いる
ことで、床版厚増加による死荷重の増加の問題を惹起す
ることなく、確実に旧床版を補強することができる、と
言う優れた効果を奏し得る。[Effects of the Invention] As explained above, according to the method for reinforcing bridge reinforced concrete deck slabs of the present invention, by using high-strength concrete plates, the problem of increase in dead load due to increase in slab thickness can be avoided. This has the excellent effect of reliably reinforcing the old floor slab.
第１図は本発明の補強方法の説明図、第２図は従来例の
説明図である。
■は旧床版、４は高強度コンクリート板、５は接着剤を
示す。FIG. 1 is an explanatory diagram of the reinforcing method of the present invention, and FIG. 2 is an explanatory diagram of a conventional example. ■ indicates the old floor slab, 4 indicates the high-strength concrete board, and 5 indicates the adhesive.
Claims (1)
切削し、しかる後該床版上に高強度コンクリート板を設
置して両者を接着する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 method for reinforcing a reinforced concrete deck for a bridge, which comprises cutting the required amount of the surface of the reinforced concrete deck to be reinforced, and then installing a high-strength concrete plate on top of the slab and bonding the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15756386A JPS6314902A (en) | 1986-07-04 | 1986-07-04 | Reinforcement of reinforced concrete floor panel of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15756386A JPS6314902A (en) | 1986-07-04 | 1986-07-04 | Reinforcement of reinforced concrete floor panel of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6314902A true JPS6314902A (en) | 1988-01-22 |
Family
ID=15652414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15756386A Pending JPS6314902A (en) | 1986-07-04 | 1986-07-04 | Reinforcement of reinforced concrete floor panel of bridge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6314902A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009185508A (en) * | 2008-02-06 | 2009-08-20 | Denki Kagaku Kogyo Kk | Desalination method for reinforced concrete floor slabs |
| JP2016141991A (en) * | 2015-01-30 | 2016-08-08 | 株式会社富士ピー・エス | Repair method for top surface of concrete slab |
-
1986
- 1986-07-04 JP JP15756386A patent/JPS6314902A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009185508A (en) * | 2008-02-06 | 2009-08-20 | Denki Kagaku Kogyo Kk | Desalination method for reinforced concrete floor slabs |
| JP2016141991A (en) * | 2015-01-30 | 2016-08-08 | 株式会社富士ピー・エス | Repair method for top surface of concrete slab |
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