JP2563764B2 - Fixing method of concrete outer cable fixing body - Google Patents
Fixing method of concrete outer cable fixing bodyInfo
- Publication number
- JP2563764B2 JP2563764B2 JP6299387A JP29938794A JP2563764B2 JP 2563764 B2 JP2563764 B2 JP 2563764B2 JP 6299387 A JP6299387 A JP 6299387A JP 29938794 A JP29938794 A JP 29938794A JP 2563764 B2 JP2563764 B2 JP 2563764B2
- Authority
- JP
- Japan
- Prior art keywords
- fixing
- fixing body
- concrete
- fastening
- outer cable
- 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.)
- Expired - Fee Related
Links
Landscapes
- Bridges Or Land Bridges (AREA)
- Reinforcement Elements For Buildings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】道路を構成する既設ＰＣ桁の主桁
方向に、外ケーブルによるプレストレスを追加する際、
緊張端部及びサドル部にコンクリートブラケットを使用
する場合がある。本発明は、前記コンクリートブラケッ
トにプレストレスを導入して既設桁に固定する工法に関
する。[Industrial field of application] When adding prestress by an external cable to the main girder direction of an existing PC girder that constitutes a road,
Concrete brackets may be used for the tensioned end and saddle. The present invention relates to a method of introducing prestress into the concrete bracket and fixing it to an existing girder.
【０００２】[0002]
【従来の技術】近年、車両による物流が増大し、車両の
大型化に伴う諸基準が改正され、従来の設計基準で対応
されていたものは、将来何らかの補強が必要となる。道
路を構成する既成の主桁の場合、桁と桁に機構的な接合
を施工することなく、外ケーブルを応用した連続化構造
によって補強することが行われている。図１０は、外ケ
ーブルを応用した桁の連続化構造の概念図で、図１１は
図１０Ｃ部詳細でコンクリート製定着体部の斜視図であ
る。外ケーブルを桁に固定する方法として、プレキャス
トコンクリート製、現場打ちコンクリート製又は鋳鉄製
の定着体がある。2. Description of the Related Art In recent years, as physical distribution by vehicles has increased and various standards have been revised in accordance with the increase in size of vehicles, what has been dealt with by conventional design standards will need some reinforcement in the future. In the case of existing main girders that make up roads, reinforcement is performed by a continuous structure that applies outer cables, without constructing mechanical joints between girders. FIG. 10 is a conceptual diagram of a continuous structure of a girder to which an outer cable is applied, and FIG. 11 is a perspective view of a concrete fixing body portion in detail of FIG. 10C. As a method for fixing the outer cable to the girder, there is a fixing body made of precast concrete, cast concrete or cast iron.
【０００３】この定着体を固定する方法としては、１本
の桁毎に定着体を設け、ＰＣ鋼線を通しポストテンショ
ン方式でプレストレスを付与し、桁と定着体との間の摩
擦力を応用する工法が行われている。図９は従来の定着
体にプレストレスを付与する方法を示す図である。As a method of fixing the fixing member, a fixing member is provided for each girder, a pretension is applied by a post tension system through a PC steel wire, and a frictional force between the girder and the fixing member is applied. The method of application is being carried out. FIG. 9 is a diagram showing a conventional method for applying prestress to a fixing body.
【０００４】[0004]
【発明が解決しようとする課題】しかし上述のような定
着体の固定法では、次のような問題点がある。However, the fixing method of the fixing member as described above has the following problems.
【０００５】（イ）鋼棒長が短いので、緊張管理が困難
である。(A) Since the length of the steel rod is short, it is difficult to manage tension.
【０００６】（ロ）ＰＣ鋼棒の伸びが小さく、コンクリ
ートのクリープで緊張力が抜け易い。(B) The elongation of the PC steel rod is small, and the tension force is easily released by the creep of concrete.
【０００７】（ハ）主桁間の狭い範囲で張力を導入せね
ばならないため、工数が掛かりコスト高となる。(C) Since tension must be introduced in a narrow range between the main girders, man-hours are required and the cost is increased.
【０００８】（ニ）プレストレスを付与する材料が鋼材
なので、発錆の恐れがあり、耐久性に対して考慮が必要
である。(D) Since the material for applying prestress is steel, there is a risk of rusting, and it is necessary to consider durability.
【０００９】本発明は、上述のような定着体の固定法に
よる問題点を解決する手段として、プレテンション方式
による定着体の固定法を提供する。The present invention provides a fixing method of a fixing body by a pre-tensioning method as a means for solving the problems of the fixing method of the fixing body as described above.
【００１０】[0010]
【課題を解決するための手段】コンクリート製外ケーブ
ル定着体の固定工法に於いて、複数の既成の桁の腹部に
定着体締め付け材が貫通するような孔を明け、定着体用
の鉄筋を組み、ＰＣ鋼線又はコンクリートとの付着強度
が高くヤング係数の低い材料として、例えばアラミドＦ
ＲＰ材よりなるプレテンション用の定着体締め付け材を
前記孔に貫通させ、定着体締め付け材を緊張し、定着体
のコンクリートを打設養生し、定着体のブロック毎に定
着体締め付け材を切断して、定着体にプレストレスを導
入してなることを特徴とするコンクリート製外ケーブル
定着体の固定工法又は、コンクリート製外ケーブル定着
体の固定工法に於いて、複数の既成桁の腹部に定着体締
め付け材が貫通するような孔を明け、プレキャスト製コ
ンクリート定着体で桁を挟持し、ＰＣ鋼線又はコンクリ
ートとの付着強度が高くヤング係数の低い材料として、
例えばアラミドＦＲＰ材よりなるプレテンション用の定
着体締め付け材を貫通させ、桁とプレキャスト製コンク
リート定着体との間にモルタルを間詰めし、定着体締め
付け材を緊張し、プレキャスト製コンクリート定着体
と、定着体しめ付け材の孔にモルタルを注入し定着体締
め付け材を定着させ、プレキャスト製コンクリート定着
体のブロック毎に定着体締め付け材を切断して、定着体
にプレストレスを導入してなることを特徴とするコンク
リート製外ケーブル定着体の固定工法を主旨とする。[Means for Solving the Problems] In a method for fixing a concrete outer cable fixing body, a hole for a fixing body fastening member to penetrate is formed in the abdomen of a plurality of existing girders, and a reinforcing bar for the fixing body is assembled. , As a material having a high Young's modulus and a high adhesion strength with PC steel wire or concrete, for example, aramid F
A fixing member fastening material made of RP material for pretension is penetrated through the hole, the fixing member fastening material is tensioned, the fixing body concrete is poured and cured, and the fixing body fastening material is cut into blocks of the fixing body. In the fixing method of the concrete outer cable fixing body or the fixing method of the concrete outer cable fixing body characterized by introducing prestress to the fixing body, the fixing body is attached to the abdomen of a plurality of ready-made girders. Drill a hole through which the fastening material penetrates, sandwich the girder with a precast concrete anchor, and as a material with high adhesion strength to PC steel wire or concrete and low Young's modulus,
For example, a fixing material for pretension fixing material made of aramid FRP material is penetrated, mortar is packed between the girder and the precast concrete fixing material, and the fixing material tightening material is tensioned. Injecting mortar into the holes of the fixing member fastening material to fix the fixing member tightening material, cutting the fixing member tightening material for each block of the precast concrete fixing member, and introducing prestress to the fixing member. The main purpose is the fixing method of the concrete outer cable fixing body.
【００１１】[0011]
【作用】本発明の作用は次の通りである。The operation of the present invention is as follows.
【００１２】（イ）複数桁を同時に緊張するためプレス
トレスの管理が容易であり、かつ作業性が向上する。特
に既設の主桁間隔が狭く、定着体を主桁に緊結時にジャ
ッキスペースが確保出来ない場合には本工法が有利であ
る。狭いスペースでジャッキの持ち運びがないことも特
徴である。(A) Prestress can be easily managed and workability is improved because a plurality of digits are strained at the same time. This method is particularly advantageous when the existing main girder spacing is narrow and a jack space cannot be secured when the fixing body is fastened to the main girder. Another feature is that the jack is not portable in a small space.
【００１３】（ロ）定着体締め付け材の伸び量が大きい
ため、コンクリートのクリープによる緊張力が抜け難
い。(B) Since the amount of expansion of the fixing member fastening material is large, it is difficult to release the tension force due to the creep of concrete.
【００１４】（ハ）定着体締め付け材にアラミドＦＲＰ
を用いた場合は、露出する金属部分がないので保守管理
が容易である。(C) Aramid FRP for fastening material of fixing body
When using, there is no exposed metal part, so maintenance is easy.
【００１５】（ニ）定着体締め付け材にアラミドＦＲＰ
を用いた場合は、鋼材に比べて軽量であるから、このよ
うな作業スペースに制約がある現場作業には特に有利で
ある。(D) Aramid FRP as a fixing member fastening material
Since it is lighter than steel, it is particularly advantageous for field work where the working space is limited.
【００１６】（ホ）定着体締め付け材にアラミドＦＲＰ
を用いた場合は、ＰＣ鋼線より切断が容易である。(E) Aramid FRP for the fastening material of the fixing body
When used, it is easier to cut than PC steel wire.
【００１７】[0017]
【実施例】以下図面によって、本発明の詳細を説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the drawings.
【００１８】図１は、本発明の一実施例を示す桁面直下
の平面図である。複数本の桁１をそれぞれコンクリート
の定着体３で挟持するように配置し、横桁２に沿ってＰ
Ｃ鋼又はコンクリートとの付着強度が高くヤング係数の
低い材料例えばアラミドＦＲＰ材からなる定着体締め付
け材５を貫通させ、両端には緊張治具４を配置しナット
６を締め付けて緊張を与える。ナット６を締め付けてス
トレスを導入する場合の反力は、一方は横桁２が受け持
ち、一方は調整ジャッキ７等を利用した治具を用いる。
図２は図１のＡ−Ａ視図である。図３は図２のＢ−Ｂ視
図である。図４は、本発明のコンクリート製外ケーブル
定着体の固定法の概念図である。定着体締め付け材５で
あるＰＣ鋼線又はアラミドＦＲＰ材は、プレテンション
を与え定着体３のコンクリートに定着後は定着体３はブ
ロック毎に切断して定着体３にプレストレスを付与す
る。FIG. 1 is a plan view just below a girder surface showing an embodiment of the present invention. Plural girders 1 are arranged so as to be sandwiched between concrete fixing bodies 3, and P is arranged along the transverse girders 2.
A fixing member fastening member 5 made of a material having a high Young's modulus such as aramid FRP material having a high adhesion strength with C steel or concrete is penetrated, tensioning jigs 4 are arranged at both ends, and nuts 6 are tightened to give tension. As for the reaction force when the nut 6 is tightened to introduce stress, one side is carried by the cross beam 2 and the other side uses a jig using the adjustment jack 7 or the like.
FIG. 2 is a view taken along line AA of FIG. FIG. 3 is a BB view of FIG. FIG. 4 is a conceptual diagram of a method of fixing the concrete outer cable fixing body of the present invention. The PC steel wire or the aramid FRP material, which is the fixing member fastening member 5, gives a pre-tension, and after fixing to the concrete of the fixing member 3, the fixing member 3 is cut into blocks to apply pre-stress to the fixing member 3.
【００１９】次に、本発明の工法を順を追って説明す
る。Next, the construction method of the present invention will be described step by step.
【００２０】（イ）複数の既成桁１の腹部に定着体締め
付け材５が貫通するような孔９を明ける。(A) A hole 9 is formed in the abdomen of a plurality of prefabricated girders 1 so that the fixing member fastening member 5 can pass therethrough.
【００２１】（ロ）定着体用の鉄筋１０を組む。(B) Assembling the reinforcing bar 10 for the fixing member.
【００２２】図５は既成桁１に孔９を明け、定着体用の
鉄筋１０を組んだところを示す図である。FIG. 5 is a view showing a hole 9 formed in the prefabricated girder 1 and a reinforcing bar 10 for the fixing member is assembled.
【００２３】（ハ）ＰＣ鋼線又はアラミドＦＲＰ材より
なるプレテンション用の定着体締め付け材５を貫通させ
る。(C) The fixing member fastening member 5 for pretension made of PC steel wire or aramid FRP material is penetrated.
【００２４】図６は、定着体締め付け材５を貫通したと
ころを示す図である。FIG. 6 is a view showing a portion penetrating the fixing member fastening member 5.
【００２５】（ニ）締結治具を介して定着体締め付け材
５を緊張する。(D) The fixing member fastening member 5 is tensioned via the fastening jig.
【００２６】（ホ）定着体３のコンクリート１１を打設
し養生する。(E) The concrete 11 of the fixing body 3 is poured and cured.
【００２７】（ヘ）定着体３のブロック毎に定着体締め
付け材５を切断して、定着体３にプレストレスを導入す
る。(F) The fixing member fastening member 5 is cut into blocks of the fixing member 3 to introduce prestress to the fixing member 3.
【００２８】図７は、定着体にプレストレスを付与した
状態を示す図である。FIG. 7 is a view showing a state in which a prestress is applied to the fixing body.
【００２９】又、本発明は上述のように、場所打ちコン
クリートを基本とするが、シースによって孔をあけたプ
レキャスト製コンクリート定着体１２を用いることも可
能である。図８はプレキャスト製コンクリート定着体を
用いた場合の工法を示す図である。その工法を順を追っ
て説明する。Further, although the present invention is based on cast-in-place concrete as described above, it is also possible to use a precast concrete anchoring body 12 having holes formed by a sheath. FIG. 8 is a diagram showing a construction method when a precast concrete fixing body is used. The construction method will be described step by step.
【００３０】（イ）複数の既成桁１の腹部に定着体締め
付け材５が貫通するような孔９を明ける。(A) A hole 9 is formed in the abdomen of a plurality of prefabricated girders 1 so that the fixing member fastening member 5 can pass therethrough.
【００３１】（ロ）プレキャスト製コンクリート定着体
１２で桁１を挟持する。(B) The girder 1 is held between the precast concrete fixing members 12.
【００３２】（ハ）ＰＣ鋼線又はアラミドＦＲＰ材より
なるプレテンション用の定着体締め付け材５を貫通させ
る。(C) A fixing member fastening member 5 for pretension made of PC steel wire or aramid FRP material is penetrated.
【００３３】（ニ）桁１トプレキャスト製コンクリート
定着体１２との間にモルタル１３を間詰めし、定着体締
め付け材５を緊張する。(D) Girder 1 The mortar 13 is packed between it and the precast concrete fixing body 12, and the fixing body tightening member 5 is tensioned.
【００３４】（ホ）プレキャスト製コンクリート定着体
１２と、定着体締め付け材５の孔にモルタル１３を間詰
めし定着体締め付け材５を定着させる。(E) Precast concrete fixing body 12 and fixing body fastening material 5 are filled with mortar 13 to fix the fixing body fastening material 5.
【００３５】（ヘ）プレキャスト製コンクリート定着体
１２のブロック毎に定着体締め付け材５を切断して、定
着体３にプレストレスを導入する。(F) The fixing member fastening member 5 is cut into each block of the precast concrete fixing member 12 to introduce prestress to the fixing member 3.
【００３６】[0036]
【発明の効果】この発明の効果は、次の通りである。The effects of the present invention are as follows.
【００３７】（イ）複数桁を同時に緊張するためプレス
トレスの管理が容易であり、かつ作業性が向上する。特
に既設の主桁間隔が狭く、定着体を主桁に緊結時にジャ
ッキスペースが確保出来ない場合には本工法が有利であ
る。狭いスペースでジャッキの持ち運びがないことも特
徴である。(A) Prestress can be easily managed and workability is improved because a plurality of digits are strained at the same time. This method is particularly advantageous when the existing main girder spacing is narrow and a jack space cannot be secured when the fixing body is fastened to the main girder. Another feature is that the jack is not portable in a small space.
【００３８】（ロ）定着体締め付け材の伸び量が大きい
ため、コンクリートのクリープによる緊張力が抜け難
い。(B) Since the amount of elongation of the fixing member tightening material is large, it is difficult to release the tension force due to the creep of concrete.
【００３９】（ハ）定着体締め付け材にアラミドＦＲＰ
を用いた場合は、露出する金属部分がないので保守管理
が容易である。(C) Aramid FRP as a fixing material fastening material
When using, there is no exposed metal part, so maintenance is easy.
【００４０】（ニ）定着体締め付け材にアラミドＦＲＰ
を用いた場合は、鋼材に比べて軽量であるから、このよ
うな作業スペースに制約がある現場作業には特に有利で
ある。(D) Aramid FRP as a fixing member fastening material
Since it is lighter than steel, it is particularly advantageous for field work where the working space is limited.
【００４１】（ホ）定着体締め付け材にアラミドＦＲＰ
を用いた場合は、ＰＣ鋼線より切断が容易である。(E) Aramid FRP as a fixing member fastening material
When used, it is easier to cut than PC steel wire.
【図１】本発明の一実施例を示す桁面直下の平面図であ
る。FIG. 1 is a plan view immediately below a girder surface showing an embodiment of the present invention.
【図２】図１のＡ−Ａ視図である。FIG. 2 is an AA view of FIG.
【図３】図２のＢ−Ｂ視図である。3 is a BB view of FIG. 2. FIG.
【図４】本発明のコンクリート製外ケーブル定着体の固
定法の概念図である。FIG. 4 is a conceptual diagram of a method for fixing a concrete outer cable fixing body of the present invention.
【図５】既成桁に孔を明け、定着体用の鉄筋を組んだと
ころを示す図である。FIG. 5 is a view showing a hole formed in a prefabricated girder and a reinforcing bar for a fixing member is assembled.
【図６】定着体締め付け材を貫通したところを示す図で
ある。FIG. 6 is a view showing a portion penetrating a fixing member fastening member.
【図７】定着体にプレストレスを付与した状態を示す図
である。FIG. 7 is a diagram showing a state in which a prestress is applied to a fixing body.
【図８】プレキャスト製コンクリート定着体を用いた場
合の工法を示す図である。FIG. 8 is a diagram showing a construction method when a precast concrete fixing body is used.
【図９】従来の定着体にプレストレスを付与する方法を
示す図である。FIG. 9 is a diagram showing a method for applying a prestress to a conventional fixing member.
【図１０】外ケーブルを応用した桁の連続化構造の概念
図である。FIG. 10 is a conceptual diagram of a girder continuous structure to which an outer cable is applied.
【図１１】図１０のＣ部詳細でコンクリート製定着体部
の斜視図である。FIG. 11 is a perspective view of the concrete fixing body portion in detail of the portion C of FIG.
１・・・既設桁、２・・・横桁、３・・・定着体、４・
・・締結治具、５・・・アラミドＦＲＰ定着体締め付け
材、６・・・ナット、７・・・調整ジャッキ、８・・・
外ケーブル、９・・・定着体締め付け材用孔、１０・・
・鉄筋、１１・・・コンクリート、１２・・・プレキャ
スト製コンクリート定着体、１３・・・モルタル1 ... existing digit, 2 ... horizontal girder, 3 ... fixing body, 4 ...
..Fastening jigs, 5 ... Aramid FRP fixing body tightening material, 6 ... Nuts, 7 ... Adjustment jacks, 8 ...
Outer cable, 9 ... Hole for fixing material fastening material, 10 ...
・ Reinforcing bar, 11 ... Concrete, 12 ... Precast concrete anchor, 13 ... Mortar
───────────────────────────────────────────────────── フロントページの続き (72)発明者 永井 淳一 大阪府吹田市清水15−１ 日本道路公団 大阪管理局内 (72)発明者 熊谷 紳一郎 東京都新宿区荒木町13番地の４ 住友建 設株式会社内 (72)発明者 木島 裕一 東京都新宿区荒木町13番地の４ 住友建 設株式会社内 (72)発明者 中井 裕司 東京都新宿区荒木町13番地の４ 住友建 設株式会社内 (72)発明者 肥田 研一 千葉県柏市松葉町４−１−15−404 (72)発明者 福田 暁 東京都杉並区下高井戸２−10−21 カー サ桜上水809号 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junichi Nagai 15-1 Shimizu, Suita City, Osaka Prefecture Japan Road Public Corporation, Osaka Administration Bureau (72) Inventor Shinichiro Kumagai, 13 Arakicho, Shinjuku-ku, Tokyo 4 Sumitomo Construction Co., Ltd. In-house (72) Inventor Yuichi Kijima, 4 Sumitomo Construction Co., Ltd., 13 Arakicho, Shinjuku-ku, Tokyo (72) Inventor Yuji Nakai 4 Sumitomo Construction, 13-13 Araki-cho, Shinjuku-ku, Tokyo (72 ) Inventor Kenichi Hida 4-1-15-404, Matsuba-cho, Kashiwa-shi, Chiba (72) Inventor Akira Fukuda 2-10-21 Shimotakaido, Suginami-ku, Tokyo Casa Sakurajosui No.809
Claims (2)
工法に於いて、複数の既成の桁の腹部に定着体締め付け
材が貫通するような孔を明け、定着体用の鉄筋を組み、
ＰＣ鋼線又はコンクリートとの付着強度が高くヤング係
数の低いプレテンション用の定着体締め付け材を前記孔
に貫通させ、締結治具を介して定着体締め付け材を緊張
し、定着体のコンクリートを打設養生し、定着体のブロ
ック毎に定着体締め付け材を切断して、定着体にプレス
トレスを導入してなることを特徴とするコンクリート製
外ケーブル定着体の固定工法。1. In a method for fixing a concrete outer cable fixing body, a hole for a fixing body fastening member to penetrate is formed in the abdomen of a plurality of existing girders, and a reinforcing bar for the fixing body is assembled.
A fixing member fastening material for pre-tensioning, which has a high adhesion strength with PC steel wire or concrete and a low Young's modulus, is passed through the hole, and the fixing material fastening material is tensioned through a fastening jig to strike the concrete of the fixing body. A fixing method for a concrete outer cable fixing body, which comprises curing and fixing the fixing body tightening material for each block of the fixing body and introducing prestress to the fixing body.
工法に於いて、複数の既成桁の腹部に定着体締め付け材
が貫通するような孔を明け、シースで孔を明けたプレキ
ャスト製コンクリート定着体で桁を挟持し、ＰＣ鋼線又
はコンクリートとの付着強度が高くヤング係数の低いプ
レテンション用の定着体締め付け材を貫通させ、桁とプ
レキャスト製コンクリート定着体との間にモルタルを間
詰めし、定着体締め付け材を緊張し、プレキャスト製コ
ンクリート定着体と、定着体しめ付け材の孔にモルタル
を注入し定着体締め付け材を定着させ、プレキャスト製
コンクリート定着体のブロック毎に定着体締め付け材を
切断して、定着体にプレストレスを導入してなることを
特徴とするコンクリート製外ケーブル定着体の固定工
法。2. A method for fixing a concrete outer cable fixing body, comprising a precast concrete fixing body having holes formed in the abdomen of a plurality of prefabricated girders, through which fixing material fastening members penetrate, and a sheath. The girder is sandwiched, the fixing material for pretension, which has high Young's modulus and high adhesion strength with PC steel wire or concrete, is passed through, and mortar is stuffed between the girder and precast concrete fixing body to fix it. Tension the body tightening material, inject mortar into the holes of the precast concrete fixing body and the fixing body fastening material to fix the fixing body tightening material, and cut the fixing body tightening material for each block of the precast concrete fixing body Then, a method for fixing a concrete outer cable fixing body is characterized by introducing prestress to the fixing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6299387A JP2563764B2 (en) | 1994-12-02 | 1994-12-02 | Fixing method of concrete outer cable fixing body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6299387A JP2563764B2 (en) | 1994-12-02 | 1994-12-02 | Fixing method of concrete outer cable fixing body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08158315A JPH08158315A (en) | 1996-06-18 |
| JP2563764B2 true JP2563764B2 (en) | 1996-12-18 |
Family
ID=17871904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6299387A Expired - Fee Related JP2563764B2 (en) | 1994-12-02 | 1994-12-02 | Fixing method of concrete outer cable fixing body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2563764B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5014236B2 (en) * | 2008-04-22 | 2012-08-29 | 三井住友建設株式会社 | External cable fixing structure |
| JP6117898B1 (en) * | 2015-11-25 | 2017-04-19 | 中日本高速技術マーケティング株式会社 | Structure-tightening method |
| JP7031970B2 (en) * | 2017-10-02 | 2022-03-08 | 東日本高速道路株式会社 | How to repair PC structures |
| CN108517985A (en) * | 2018-05-30 | 2018-09-11 | 重庆建工集团股份有限公司 | A kind of prestressing without bondn steel reinforced concrete wall and its construction method |
-
1994
- 1994-12-02 JP JP6299387A patent/JP2563764B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08158315A (en) | 1996-06-18 |
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