JP2636662B2 - FRP tendon fixing device - Google Patents

FRP tendon fixing device

Info

Publication number
JP2636662B2
JP2636662B2 JP5041297A JP4129793A JP2636662B2 JP 2636662 B2 JP2636662 B2 JP 2636662B2 JP 5041297 A JP5041297 A JP 5041297A JP 4129793 A JP4129793 A JP 4129793A JP 2636662 B2 JP2636662 B2 JP 2636662B2
Authority
JP
Japan
Prior art keywords
frp
tendon
fixing device
fixing
adhesive
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 - Lifetime
Application number
JP5041297A
Other languages
Japanese (ja)
Other versions
JPH06248758A (en
Inventor
八洲雄 村山
玲子 天野
一正 奥村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kajima Corp
Original Assignee
Kajima Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kajima Corp filed Critical Kajima Corp
Priority to JP5041297A priority Critical patent/JP2636662B2/en
Publication of JPH06248758A publication Critical patent/JPH06248758A/en
Application granted granted Critical
Publication of JP2636662B2 publication Critical patent/JP2636662B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08Members specially adapted to be used in prestressed constructions
    • E04C5/085Tensile members made of fiber reinforced plastics
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08Members specially adapted to be used in prestressed constructions
    • E04C5/12Anchoring devices
    • E04C5/127The tensile members being made of fiber reinforced plastics
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • E04G2023/0255Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements whereby the fiber reinforced plastic elements are stressed
    • E04G2023/0259Devices specifically adapted to stress the fiber reinforced plastic elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • E04G2023/0262Devices specifically adapted for anchoring the fiber reinforced plastic elements, e.g. to avoid peeling off

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】この発明はプレストレスコンクリ
ートの補強用あるいはアースアンカー等として用いられ
るFRP緊張材の定着装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for an FRP tendon used for reinforcing prestressed concrete or as an earth anchor.

【0002】[0002]

【発明が解決しようとする課題】コンクリート構造物に
プレストレスを導入するPC鋼材や既製のFRPを用い
た緊張材は通常、定着部とテンドン部(緊張材部分)と
を一体となし製造し、現場に搬入し施工していた。
A tendon using pre-stressed PC steel or a ready-made FRP to introduce a prestress into a concrete structure is usually manufactured integrally with a fixing part and a tendon part (tensile part). They were brought to the site for construction.

【0003】しかし、大容量の緊張材の場合は運搬等の
制約から現場での製作が必要となる。FRP緊張材はボ
ルト締結や溶接接合を適用しがたく、現場製作する際の
信頼性が問題となっている。
However, in the case of a large-capacity tendon, production on site is required due to restrictions on transportation and the like. It is difficult to apply bolt fastening and welding to the FRP tendon, and reliability at the time of on-site production is a problem.

【0004】この発明はこの様な事情に鑑みなされたも
のである。その目的は施工現場でFRP緊張材のテンド
ン部と容易、確実に接合ができ、定着の信頼性が高いF
RP緊張材の定着装置を提案するにある。
[0004] The present invention has been made in view of such circumstances. The purpose is to easily and securely join the tendon part of the FRP tendon at the construction site, and to achieve high reliability of fixing.
It is to propose a fixing device for the RP tendon.

【0005】[0005]

【課題を解決するための手段】このFRP緊張材の定着
装置は、定着筒内に並列する複数条の帯板状FRP材を
挿入し、硬化性組成物を充填、硬化せしめて固定し、定
着筒の端にFRP材の端部を突出せしめて、前記FRP
緊張材端と接着剤接合すべき接合端を設けてなることを
特徴とする。
In this fixing device for a FRP tendon material, a plurality of strip-shaped FRP materials arranged in parallel in a fixing cylinder are inserted, and a curable composition is filled, cured, fixed, and fixed. The end of the FRP material is protruded from the end of the cylinder,
It is characterized in that a joining end to be joined to the tendon end with an adhesive is provided.

【0006】[0006]

【実施例】図1に実施例の定着装置1を示す。この装置
は、鋼製で外周面にネジ3が設けてある有底円筒形の定
着筒2内に底部のスリット孔4を挿通して2条の表面に
多数の小凸部があり粗面をなした帯板状FRP材5の端
部を差込み、内部にエポキシ樹脂組成物6を充填硬化せ
しめ固定し、底部の端から帯板状FRP材5を突出せし
めて接合端7を設け構成されている。
FIG. 1 shows a fixing device 1 according to an embodiment. This device is made of steel and has a bottomed cylindrical fixing tube 2 having a screw 3 provided on the outer peripheral surface thereof. The end of the strip-shaped FRP material 5 is inserted, the epoxy resin composition 6 is filled and hardened and fixed therein, and the strip-shaped FRP material 5 is protruded from the bottom end to provide a joining end 7. I have.

【0007】この定着装置1は予め工場で製作し、施工
現場に搬入し、FRP緊張材のテンドン部と接合して定
着部として機能させる。
The fixing device 1 is manufactured in a factory in advance, carried into a construction site, and joined to a tendon portion of the FRP tendon to function as a fixing portion.

【0008】図2は、帯板状FRP材5と同種FRPか
らなる粗面帯板状の3条のFRP緊張材8のテンドン部
端と、定着装置1、接合端7の2条のFRP材5とを交
互に重ね合せ、エポキシ樹脂接着剤9で接着接合した接
合例である。
FIG. 2 shows the end of a tendon portion of a three-piece FRP tensioning material 8 having a rough surface strip made of the same type of FRP as the strip-shaped FRP material 5, and two FRP materials of a fixing device 1 and a joining end 7. This is an example in which 5 and 5 are alternately overlapped and bonded with an epoxy resin adhesive 9.

【0009】図3もこの定着装置1と帯板状のFRP緊
張材8とテンドン部とを接着剤接合した実施例である。
この実施例はFRP材5と緊張材8の端を重ね合せ接着
剤接合するとともに、その外周をとりまきプラスチック
筒体10を配し、その内部にも接着剤9を充填し固定し
てある。
FIG. 3 also shows an embodiment in which the fixing device 1, the band-shaped FRP tendon 8 and the tendon are bonded with an adhesive.
In this embodiment, the ends of the FRP material 5 and the tendon material 8 are overlapped and bonded with an adhesive, and a plastic cylinder 10 is provided around the periphery thereof, and an adhesive 9 is filled inside the plastic cylinder 10 and fixed.

【0010】この様にFRP緊張材8に定着装置1を接
合した後、定着筒2のネジ3に定着板を螺着するなどの
手段によりコンクリート構造体あるいは地山面に定着し
緊張材あるいはアースアンカーとしてのFRP材に緊張
を導入する。
After the fixing device 1 is joined to the FRP tendon 8 as described above, the fixation plate 1 is fixed to the concrete structure or the ground surface by means such as screwing the fixing plate to the screw 3 of the fixing cylinder 2 and the tendon or ground. Introduce tension into the FRP material as anchor.

【0011】上記、実施例では鋼製の定着筒を用いた
が、FRP製であってもよい。硬化性組成物はエポキシ
樹脂のほか他の合成樹脂組成物あるいはセメントモルタ
ルが用いられる。
In the above embodiment, the fixing tube made of steel is used, but it may be made of FRP. As the curable composition, other synthetic resin composition or cement mortar besides epoxy resin is used.

【0012】[0012]

【作用および発明の効果】この発明は以上の通りであ
る。この定着装置は予め設備の整った工場で製作し、施
工現場において、FRP緊張材テンドン部の端と接着剤
接合するので、運搬上の制約を受けず、配筋の実態に即
応して施工できるので作業能率が向上する。
The present invention is as described above. This fixing device is manufactured in a factory equipped with facilities in advance, and is bonded to the end of the tendon part of the FRP tendon at the construction site, so that it can be installed immediately without any restrictions on transportation, according to the actual condition of the reinforcing bars. Therefore, work efficiency is improved.

【0013】定着装置の接合端は並列する複数条の帯板
状FRP材からなるので、FRP緊張材テンドン部端を
交互に重ね合せ接着剤接合し、高い接合強度とすること
ができ、現場施工にかかわらず高い信頼性が得られる。
FRP緊張材が帯板状であると一層好適である。
[0013] Since the joining end of the fixing device is made of a plurality of strip-shaped FRP materials arranged in parallel, the ends of the tendon portions of the FRP tendon material are alternately overlapped with each other and joined with an adhesive to achieve a high joining strength. Regardless, high reliability is obtained.
More preferably, the FRP tendon is in the form of a strip.

【0014】図3に示す実施例のごとく接合部分の外周
に筒体を配し接着剤を充填すると接合が一層確実とな
る。
As in the embodiment shown in FIG. 3, when a cylinder is arranged around the outer periphery of the joint and filled with an adhesive, the joining is further ensured.

【図面の簡単な説明】[Brief description of the drawings]

【図1】実施例の定着装置の一部断面で示す斜視図であ
る。
FIG. 1 is a perspective view showing a partial cross section of a fixing device according to an embodiment.

【図2】FRP緊張材と接着剤接合した定着装置の一部
断面で示す側面図である。
FIG. 2 is a side view showing a partial cross section of a fixing device bonded to an FRP tendon by an adhesive.

【図3】外周に筒体を配し、FRP緊張材と接着剤接合
した定着装置の一部断面で示す側面図である。
FIG. 3 is a side view showing a partial cross section of a fixing device in which a cylindrical body is arranged on an outer periphery and bonded to an FRP tendon by an adhesive.

【符号の説明】[Explanation of symbols]

1…定着装置、2…定着筒、3…ネジ、4…スリット
孔、5…帯板状FRP材、6…エポキシ樹脂組成物、7
…接合端、8…FRP緊張材、9…エポキシ樹脂接着
剤、10…プラスチック筒体。
DESCRIPTION OF SYMBOLS 1 ... Fixing device, 2 ... Fixing cylinder, 3 ... Screw, 4 ... Slit hole, 5 ... Strip-shaped FRP material, 6 ... Epoxy resin composition, 7
... joining end, 8 ... FRP tendon, 9 ... epoxy resin adhesive, 10 ... plastic cylinder.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 FRP緊張材の定着装置であって、定着
筒内に並列する複数条の帯板状FRP材を挿入し、硬化
性組成物を充填、硬化せしめて固定し、定着筒の端にF
RP材の端部を突出せしめて、前記FRP緊張材端と接
着剤接合すべき接合端を設けてなるFRP緊張材の定着
装置。
1. A fixing device for an FRP tensioning material, wherein a plurality of strip-shaped FRP materials arranged in parallel are inserted into a fixing cylinder, and a curable composition is filled, cured and fixed, and an end of the fixing cylinder is fixed. To F
A fixing device for an FRP tendon material, wherein an end of an RP material is protruded to provide a joining end to be bonded to the end of the FRP tendon material with an adhesive.
JP5041297A 1993-03-02 1993-03-02 FRP tendon fixing device Expired - Lifetime JP2636662B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5041297A JP2636662B2 (en) 1993-03-02 1993-03-02 FRP tendon fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5041297A JP2636662B2 (en) 1993-03-02 1993-03-02 FRP tendon fixing device

Publications (2)

Publication Number Publication Date
JPH06248758A JPH06248758A (en) 1994-09-06
JP2636662B2 true JP2636662B2 (en) 1997-07-30

Family

ID=12604532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5041297A Expired - Lifetime JP2636662B2 (en) 1993-03-02 1993-03-02 FRP tendon fixing device

Country Status (1)

Country Link
JP (1) JP2636662B2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002097746A (en) * 2000-09-21 2002-04-05 Dps Bridge Works Co Ltd Frp reinforced materials with anchorage device
EP1331327A1 (en) * 2002-01-29 2003-07-30 Sika Schweiz AG Reinforcing device
CN1662718A (en) * 2002-06-26 2005-08-31 Sika技术股份公司 Device and method for the reinforcing of support structures
CN105839856A (en) * 2016-03-21 2016-08-10 宁波大学 Large-tonnage carbon fiber superimposed plate bundle anchorage
CN109944173B (en) * 2019-03-18 2020-10-16 山西省交通科学研究院有限公司 Winding combined type carbon fiber plate anchor
US20220186759A1 (en) * 2020-10-21 2022-06-16 Kulstoff Composite Products, LLC Fiber-Reinforced Polymer Anchors and Connectors For Repair and Strengthening of Structures Configured for Field Testing, and Assemblies for Field Testing the Same
CN114016668A (en) * 2021-11-18 2022-02-08 中国建筑第八工程局有限公司 Anchoring structure of FRP (fiber reinforced Plastic) reinforcement cable and construction method thereof
CN115478707B (en) * 2022-09-30 2023-06-16 中国人民解放军陆军工程大学 High-bearing extrusion type anchorage device suitable for multi-layer carbon fiber plate cables and application method thereof

Also Published As

Publication number Publication date
JPH06248758A (en) 1994-09-06

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Legal Events

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A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 19970311