WO2008029795A1 - Procédé de renfort de structure existante avec des fibres de carbone - Google Patents

Procédé de renfort de structure existante avec des fibres de carbone Download PDF

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Publication number
WO2008029795A1
WO2008029795A1 PCT/JP2007/067195 JP2007067195W WO2008029795A1 WO 2008029795 A1 WO2008029795 A1 WO 2008029795A1 JP 2007067195 W JP2007067195 W JP 2007067195W WO 2008029795 A1 WO2008029795 A1 WO 2008029795A1
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WO
WIPO (PCT)
Prior art keywords
carbon fiber
resin
fiber material
impregnated
reinforcing
Prior art date
Application number
PCT/JP2007/067195
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English (en)
Japanese (ja)
Inventor
Yoshihiro Fukuda
Hideyuki Komaki
Masanori Nakata
Yasuhiro Mori
Junichi Kagawa
Kouichirou Tamuro
Shinya Enomoto
Original Assignee
Nippon Oil Corporation
Konishi Co., Ltd.
Sg Engineering Co., Ltd.
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 Nippon Oil Corporation, Konishi Co., Ltd., Sg Engineering Co., Ltd. filed Critical Nippon Oil Corporation
Priority to CN2007800330207A priority Critical patent/CN101512083B/zh
Publication of WO2008029795A1 publication Critical patent/WO2008029795A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements

Definitions

  • the present invention relates to a method for reinforcing a structure such as a column, a beam, a slab, a wall, or a chimney using carbon fiber.
  • the present invention relates to a reinforcing method for enhancing the shear resistance or dust performance of a concrete structure.
  • a reinforcing method using a reinforcing material using a reinforcing fiber sheet is known.
  • Fig. 8 shows a schematic diagram of the seismic reinforcement method for concrete columns.
  • Figure 9 shows the flow sheet.
  • undercoating and overcoating of impregnating resin are performed using a brush or a roller.
  • the CF sheet should be affixed with care so as not to leave a large amount of air bubbles and wrinkles that will cause insufficient adhesive strength, and it will be pressed into place with a defoaming roller or palm to bring it into close contact with the concrete. If air bubbles cannot be removed, a cut may be made in the fiber direction of the CF sheet to remove the air. In such a case, the resin is applied again to the cut. In addition, the top coat of the impregnated resin is applied to the surface of the CF sheet in the same way as when the surface of the undercoat impregnating resin has been lifted.
  • the method of applying the impregnating resin using a brush or a roller has a problem that a difference in uniformity is likely to occur depending on the skill of the operator. Also, CF sheets must be affixed with care so that bubbles and wrinkles do not occur, which also requires the skill of the operator.
  • FIG. 10 shows a ground treatment when there is a large step, and it is necessary to repair by filling up the upper part of the step with a mortar so that the lower part is continuous with the scraped surface. is there.
  • the carbon fiber sheet is applied to the column surface by smoothing using an epoxy-based putty etc. after the primer coating surface is cured by touch. It is said that it must be arranged to adhere.
  • Patent Document 1 Japanese Patent Laid-Open No. 6-288101
  • a thermoplastic fiber is mixed into a reinforcing fiber wound around a concrete structure to form a long cloth. Knitted and woven, both sides of this long cloth-like reinforcing fiber was heated and mixed A method for winding a resin around a concrete structure while melting the resin and a device for that are shown.
  • This device is provided with a pair of rollers that rotate in contact with both the front and back surfaces of a long cloth, and a heating device is provided inside each roller.
  • this method is also based on the premise that it is wound around the entire surface of the reinforced body, and it is necessary to perform the ground treatment in the same way as before.
  • this method uses a thermoplastic resin and cannot use thermosetting resins such as epoxy resins with excellent adhesive strength or room temperature curable resins such as epoxy adhesives. There is a problem of being inferior.
  • the construction is performed while the thermoplastic resin is melted, the construction speed is not always sufficiently high.
  • the resin will not melt completely or uneven melting will occur if the heating roller is installed before it reaches the specified temperature, or if it is applied at a speed higher than the specified speed, or if it is applied in winter. These may cause voids and poor adhesion.
  • FRP fiber reinforced resin composite material
  • a method using a fiber reinforced resin composite material (FRP) molded in advance into a predetermined shape is known. Since FRP is impregnated with resin in the manufacturing process, undercoating and overcoating of the impregnating resin at the work site are not required, but primer treatment is essential for bonding, and if there are protrusions etc. As with CF sheet pasting, ground processing is required. In addition, if there is a step, it is necessary to perform flattening that is more powerful than pasting a CF sheet, or prepare a molded product that matches the step shape. Therefore, the use of a molded product is poor in versatility as a method for reinforcing columns and the like.
  • the concrete surface is covered with a reinforcing fiberboard after construction.
  • a reinforcing fiberboard For example, when a medium-scale earthquake occurs, cracking or the like occurs in the concrete. It is very difficult to diagnose whether it is! /, Na! /.
  • Patent Document 2 Japanese Patent Laid-Open No. Sho 62-244977
  • Patent Document 3 Japanese Patent Laid-Open No. Sho 62-2 42058
  • a high-strength long fiber strand is used as a seismic reinforcement method for existing concrete columns.
  • a method of winding in a spiral shape is shown. These include impregnating or winding the resin in advance when the fiber filament is impregnated with the resin to form a strand. There is a description of impregnation after turning, but there is no detailed description.
  • Patent Document 4 Japanese Patent Application Laid-Open No. 2002-115403
  • a plurality of through holes are formed in the wall at intervals in the longitudinal direction of the column. It has been proposed to wind a bundle of reinforcing fiber strands around the outer periphery of the column through each through hole. There are two possible timings for impregnating the resin depending on the curing time of the resin.
  • the strands In the construction method using strands, the strands must be wound many times in order to obtain a necessary amount of reinforcement, and there is a problem that the process is complicated, and it has hardly been put into practical use.
  • the above-mentioned sheet method is used because it is easy to obtain the necessary amount of reinforcement.
  • Patent Document 5 Japanese Patent Laid-Open No. 2000-735866 uses an FRP reinforcing tape to provide an opening in the sleeve wall where the reinforcing tape is rolled even if there is an obstacle such as a sleeve wall.
  • a method of whispering is disclosed.
  • this method uses FRP reinforcing tape in advance, a gap is created when the tape is wound around the tape end as the starting point, and the reinforcing effect may be impaired. It has been proposed to pack mortar.
  • Patent Document 1 JP-A-6-288101
  • Patent Document 2 JP-A 62-244977
  • Patent Document 3 Japanese Patent Application Laid-Open No. 62-242058
  • Patent Document 4 Japanese Patent Laid-Open No. 2002-115403
  • Patent Document 5 Japanese Unexamined Patent Publication No. 2000-73586
  • the object of the present invention is that diagnosis after the occurrence of a medium-scale earthquake is easy, and at the time of construction, minimal ground processing is required, and even primer processing, which has been essential in the past, is unnecessary. It is to provide a new reinforcing method.
  • the present inventors can easily diagnose after the occurrence of a medium-scale earthquake and obtain the amount of reinforcement necessary for reinforcement with a small amount of winding, the amount of carbon fiber is high! ! / ⁇ examined the method of reinforcement using band-like carbon fibers.
  • the resin was impregnated with brush coating such as a carbon fiber sheet, the resin was not impregnated to the fiber center, and a sufficient amount of reinforcement was obtained. There was a problem that it was difficult to get rid of.
  • a method of winding after impregnating with a resin in advance is conceivable, in order to impregnate the resin to the center of such braided carbon fiber or band-like carbon fiber, it is necessary to use the resin with a relatively low viscosity.
  • the carbon fiber material is wound in an unimpregnated state in a dry state, and a guide member for preventing dripping is provided, and resin impregnation is performed using a low-viscosity impregnated resin, whereby the carbon fiber material is We found that the process could be greatly shortened by simultaneously bonding the material to the surface of the structure and switching to a fiber reinforced composite!
  • the present invention provides braided carbon fiber material or band-like carbon fiber material that is not subjected to primer treatment on the surface of the structure to be reinforced, and is installed in a dry state not impregnated with a resin at a predetermined interval.
  • the carbon fiber material is impregnated with a resin and cured, whereby the carbon fiber material is bonded to the surface of the structure and converted into a fiber reinforced composite material at the same time.
  • the present invention relates to a reinforcing method characterized in that, when a carbon fiber material is impregnated with a resin, a guide member for preventing dripping of resin is placed in contact with the carbon fiber material or provided with a predetermined gap.
  • the concrete surface is partially exposed even after construction, diagnosis after the occurrence of a medium-scale earthquake is easy, and the ground treatment area can be reduced.
  • the primer treatment becomes unnecessary, and therefore the process time can be shortened.
  • FIG. 1 is a flow sheet for explaining a reinforcing method according to a first embodiment of the present invention.
  • FIG. 2 is a schematic view for explaining a partial process of the reinforcing method according to the first embodiment of the present invention.
  • FIG. 3 is a flow sheet for explaining a reinforcing method according to a second embodiment of the present invention.
  • FIG. 4 is a schematic view for explaining a part of the reinforcing method according to the fourth embodiment of the present invention.
  • FIG. 5 is a schematic view for explaining a band-like carbon fiber used in the reinforcing method of the present invention.
  • FIG. 6 is a schematic view for explaining another embodiment of the band-like carbon fiber used in the reinforcing method of the present invention.
  • FIG. 7 is a schematic view for explaining braided carbon fibers used in the reinforcing method of the present invention.
  • FIG. 8 is a schematic view showing a conventional reinforcing method using a carbon fiber sheet.
  • FIG. 9 is a flow sheet of a conventional reinforcing method using a carbon fiber sheet.
  • FIG. 10 is a diagram for explaining a background process (step process) in a conventional process.
  • the force S for explaining the reinforcement of reinforced concrete columns (RC columns) as the structure to be reinforced is not limited to RC columns.
  • FIG. 1 is a flow sheet showing a construction procedure according to an embodiment of the present invention.
  • the ground treatment (S 1) of the construction site is performed.
  • This surface treatment removes the decorative coating on the concrete surface and simply shapes the concrete surface, rounds corners, repairs cracks, etc., and does not require a large step treatment.
  • CF material a braided or band-like carbon fiber material (hereinafter referred to as CF material) is wound (S2).
  • CF material a braided or band-like carbon fiber material
  • a primer treatment is performed before winding.
  • a primer treatment is not required, and an undercoat of an impregnating resin is also unnecessary.
  • the CF material to be wrapped is in a dry state not impregnated with resin and is not impregnated with resin, so it has excellent flexibility and is extremely easy to handle.
  • fine adjustment of the installation position can be easily performed even after winding.
  • the CF material is wound at a predetermined interval.
  • the winding interval varies depending on the required reinforcing effect and cannot be limited to a specific range.
  • D indicates the height of the column cross section
  • CF material in the toughening reinforcement section is wrapped and reinforced at predetermined intervals so that the winding interval (P) from the end of the column is 5 cm or more and P / D is 1/3 or less.
  • P winding interval
  • a larger amount of reinforcement is required. Is preferred.
  • shear reinforcement does not require the amount of reinforcement as much as the toughness reinforcement, the winding force S can be increased at a wider interval.
  • Shear reinforcement covers the entire section of the column, but usually it is often performed in combination with toughness reinforcement. In that case, it may be applied to the part other than the toughness reinforcement section.
  • the CF material used in the present invention has a large amount of carbon fiber, a sufficient amount of shear reinforcement can be obtained with a single winding.
  • the present invention is particularly effective in toughness reinforcement with a large amount of reinforcement.
  • the amount of reinforcement for toughness and shear reinforcement conforms to, for example, “Design and Construction Guidelines for Seismic Reinforcement Methods for Railway Viaduct Columns Using Carbon Fiber Sheets” issued by the Railway Technical Research Institute. Then, it may be selected so as to be designed on the safe side.
  • CFRP carbon fiber reinforced composite material
  • any material can be used as long as it can contact the CF material or can be installed by providing a predetermined gap between the guide member and the CF material to prevent dripping of the resin.
  • Mogugu for example, tape used for masking or plastic material molded into an L shape can be used.
  • the releasability can be improved by configuring the guide member with a fluorine-based resin or a silicone-based resin, or by applying a known release agent.
  • the “predetermined gap” mentioned here is preferably installed so that the CF material and the guide member are isolated within a range of 20 mm or less in order to avoid an unnecessary increase in the dripping amount of the impregnated resin. .
  • the carbon fiber surface is covered with a resin having a certain thickness, so that the surface can be protected.
  • the resin is impregnated.
  • the impregnating resin 4 is dropped on the CF material 2 wound around the RC pillar 1 and the dripping is prevented by the guide member 3.
  • a dedicated applicator may be used when dripping the impregnating resin.
  • a guide member may be used to form a sealed structure, and vacuum treatment such as evacuation may be performed. In the present invention, since the guide member is installed and resin impregnation is performed, the amount of resin can be optimized and used immediately without waste.
  • a finishing mortar is applied to the surface around which the reinforcing member is wound, or paint is sprayed. Finishing can be done.
  • the guide member is attached and resin impregnation is performed.
  • the guide member is composed of two or more parts, and a part of the guide member is attached. It is also possible to wrap the CF material after installing the parts and then install the remaining parts and impregnate the resin.
  • FIG. 3 is a flow sheet showing a construction procedure of a reinforcing method (second embodiment) using a guide member (hereinafter referred to as a CFB breaker) composed of two or more parts.
  • Fig. 4 is a schematic diagram explaining the construction method, showing the state of construction starting from the bottom of the page (the order of construction from the top to the bottom of the page).
  • the guide member consists of two parts: CFB breaker A (23) in contact with the bottom of the CF material (24) in the vertical direction and CFB breaker B (25) installed facing the side of the CF material. The guide member to be described will be described.
  • a lid part or the like that can be installed on the top of the CF material to create a sealed space can be installed.
  • the material of the CFB breaker is a force S that can use a plastic material such as expanded polyethylene S, but is not limited to this.
  • S2 Next, before winding the CF material (24), CFB breaker on the surface of the RC pillar (21) A Perform ink marking (22) to attach (23). This marking is performed on the lower part of the area where the CF material is to be wound at a predetermined interval.
  • CFB breaker A (23) is installed at the position of the ink marking (22). As shown in Fig. 4, CFB breaker A (23) is bonded to the RC column (21) and attached to the RC column (21) with the CF material (24). ) L-shaped force having two surfaces, ie, the base that is in contact with the lower portion of the lower portion of the) is not limited to this. Install the CFB brace with the top surface of the base of A (23) in line with the ink marking position. In this example, CFB breaker A (23) is attached to the RC column (21) with an adhesive.
  • S4 Winding a string-like or belt-like CF material (resin non-impregnated) with reference to the upper surface of the base of the installed CFB breaker A (23).
  • the winding amount, etc. is the same as in the first embodiment.
  • CFB breaker B After winding the CF material, install CFB breaker B (25).
  • the CFB breaker B may be anything as long as it is engaged with the CFB breaker A and does not leak out the impregnated resin to be poured in the next step.
  • the side surface of the CF material 24 and a gap are provided, but the distance of this gap is in accordance with the first embodiment. Further, it may be installed in contact with the side surface of the CF material 24.
  • the CF material can be wound more quickly at a predetermined interval by winding the CF material based on the base of the CFB breaker (CFB breaker A).
  • the band-like and braid-like CF materials preferably have a member width of 10 mm or more and 50 mm or less for V and displacement.
  • the weight is preferably in the range of 10 g / m to 100 g / m.
  • the present invention is effective when the basis weight of the carbon fiber is large.
  • the basis weight of the carbon fiber sheet used for surface reinforcement is about 300 g / m 2 due to the construction method, the strip CF material used in the present invention is more than double the conventional carbon fiber sheet 1 ⁇ 200 g / m 2 or more), even if summer many carbon fiber content, it is possible to sufficiently tree fat impregnated into the interior fibers.
  • the belt-like CF material 30 is a cross-shaped material in which a bundle of carbon fibers is oriented in one direction as warps 31 and bundled with wefts 32 such as polyethylene to suppress variation. It is equivalent to the carbon fiber sheet used for reinforcement of the steel. Furthermore, the force in which thin fibers are normally used for the weft yarns In the present invention, the use of thick fibers as the weft yarns can improve the resin impregnation property. Favorable results are obtained when fibers having a thickness of 0.1 mm to 5 mm are used as the wefts used. In addition, when the pitch of the weft is 5 to 10 mm, it is preferable because the linearity of the carbon fiber as the warp can be maintained! /.
  • strip-shaped CF materials 30 connected by a connecting thread 33.
  • strip-shaped CF material is wound around a roll and transported, and when it is pulled out and used at the site, the thickness increases and the roll diameter increases. Also, when the basis weight increases, it becomes more difficult to weave in a cross shape with weft.
  • the jointed yarns use a band with a fabric weight that can be manufactured, and prevent the roll diameter from becoming large by winding it in an open state when it is wound around the roll. it can. In use, it is folded.
  • the bands are connected by connecting yarns! /, It is more effective if the bands are less likely to be displaced than when a single band is overwrapped! However, if the number of units to be connected increases, followability may be hindered depending on the R shape at the corners, and whether or not to use the connected units should be selected appropriately according to the shape of the reinforcing part. Good.
  • the connecting yarn the weft constituting the strip CF material can be used as it is.
  • Braid is basically composed only of warp, and is different from “woven fabric” composed of warp and weft and “knitted fabric” composed of continuous loops.
  • Braids also called “strings” are machine-made, and can be broadly classified into 8 strokes, 16 strokes, Kongo, and many others.
  • Fig. 7 shows a schematic diagram of braided CF material that has been punched in eight strokes.
  • Carbon fiber is used as the reinforcing fiber to be used, but glass fiber, aramid fiber, other organic fibers, etc. can be mixed and used within the range without any problem, and can be appropriately selected according to the application. .
  • the carbon fiber used is, for example, 2.45 X 10 5 N / mm 2 for the high-strength type and 4.
  • a room temperature curing type or a thermosetting type epoxy resin a thermosetting resin such as a polyester resin, or a radical reaction resin such as methyl metatalylate can be used.
  • a room temperature curable epoxy resin it is preferable to use a room temperature curable epoxy resin.
  • low-viscosity epoxy resins for low-pressure resin injection and resin mortar such as the product name “CFB500” series manufactured by Konishi Co., Ltd., can be used.
  • the braided CF material (Example 1) has 5 7 bundles were assembled, and the width was 15 mm and the weight was 30 g / m (weight per unit area: 1000 g / m 2 ).
  • foamed polyethylene was attached as a guide member directly under the carbon fibers wound in a striped pattern, and then an appropriate amount of a trade name “CFB500” manufactured by Konishi Co., Ltd. was poured and impregnated as an impregnating resin.
  • the properties of the impregnating resin used are shown below. There are two types of resin, summer and winter.
  • Test method Conforms to JI S K71 1 3 Type 1 test method. 20 ° C, 7 days curing.
  • the guide member was removed when the impregnated resin was semi-cured. After curing until fully cured, the adhesion was confirmed, and it was fully adhered. Further, when the cured material was cut out and the cross section was confirmed, the resin was sufficiently impregnated to the fiber center. Moreover, the cured material thus formed showed a sufficient toughness reinforcing effect.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

Selon la présente invention, un matériau contenant des fibres de carbone en forme de tresse ou de bande et se trouvant à l'état sec, non imprégné de résine, est placé à des intervalles donnés à la surface d'une structure devant être renforcée, sans apprêtage de la surface. Un élément de guidage conçu pour empêcher la résine de couler est placé de manière à être en contact avec les fibres de carbone en place ou de manière à quitter un espace donné entre l'élément de guidage et les fibres de carbone. Une résine présentant une viscosité de 0,1-5 Pa.s mesurée à 20°C est infiltrée dans le matériau, puis est durcie. Le matériau contenant des fibres de carbone est ainsi lié à la surface de la structure et est en même temps transformé en matériau composite renforcé de fibres.
PCT/JP2007/067195 2006-09-05 2007-09-04 Procédé de renfort de structure existante avec des fibres de carbone WO2008029795A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2007800330207A CN101512083B (zh) 2006-09-05 2007-09-04 利用碳纤维的现有结构物的加强方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006240214A JP4638850B2 (ja) 2006-09-05 2006-09-05 炭素繊維による既存構造物の補強方法
JP2006-240214 2006-09-05

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WO2008029795A1 true WO2008029795A1 (fr) 2008-03-13

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CN (1) CN101512083B (fr)
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WO (1) WO2008029795A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN105715070B (zh) * 2016-03-22 2017-11-17 广东工业大学 一种碳纤维条带加固结构件及其实现方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6314945A (ja) * 1986-07-03 1988-01-22 清水建設株式会社 高強度繊維プリプレグによるコンクリ−ト柱状体の補強方法
JPH04360944A (ja) * 1991-06-07 1992-12-14 Mitsui Constr Co Ltd 柱部材の補強材
JPH08218646A (ja) * 1995-02-10 1996-08-27 Mitsui Constr Co Ltd コンクリート構造物補強方法
JP2001123579A (ja) * 1999-10-26 2001-05-08 Takao Shoji:Kk コンクリート補強用シート
WO2002001020A1 (fr) * 2000-06-29 2002-01-03 Nippon Oil Corporation Procede de renfort de structure, materiau contenant des fils de fibre de renfort destine au renfort de structure, materiau de renfort de structure et structure renforcee
JP2004332399A (ja) * 2003-05-08 2004-11-25 Ohbayashi Corp 繊維強化樹脂製補強材並びにそれを用いた補強構造及び補強方法
JP2005213899A (ja) * 2004-01-30 2005-08-11 Denki Kagaku Kogyo Kk 構造物の補修補強方法
JP2006233352A (ja) * 2005-02-24 2006-09-07 Toray Ind Inc 編組体および構造体の補修・補強方法
JP2007113346A (ja) * 2005-10-24 2007-05-10 Nippon Oil Corp 組紐状炭素繊維を使用したコンクリート構造物の剪断補強方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3362737B2 (ja) * 1991-05-13 2003-01-07 東レ株式会社 セメント系構造体の補強方法
GB9501193D0 (en) * 1995-01-21 1995-03-15 Devonport Management Ltd Reinforced material
AU2002212800B2 (en) * 2000-10-30 2006-02-09 Maintenance Professional Co., Ltd. Composite panel for repairing, reinforcing con'c body and method of using the same
CN1517494A (zh) * 2003-01-16 2004-08-04 深圳市海川实业股份有限公司 芳纶纤维布在结构工程中的应用

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6314945A (ja) * 1986-07-03 1988-01-22 清水建設株式会社 高強度繊維プリプレグによるコンクリ−ト柱状体の補強方法
JPH04360944A (ja) * 1991-06-07 1992-12-14 Mitsui Constr Co Ltd 柱部材の補強材
JPH08218646A (ja) * 1995-02-10 1996-08-27 Mitsui Constr Co Ltd コンクリート構造物補強方法
JP2001123579A (ja) * 1999-10-26 2001-05-08 Takao Shoji:Kk コンクリート補強用シート
WO2002001020A1 (fr) * 2000-06-29 2002-01-03 Nippon Oil Corporation Procede de renfort de structure, materiau contenant des fils de fibre de renfort destine au renfort de structure, materiau de renfort de structure et structure renforcee
JP2004332399A (ja) * 2003-05-08 2004-11-25 Ohbayashi Corp 繊維強化樹脂製補強材並びにそれを用いた補強構造及び補強方法
JP2005213899A (ja) * 2004-01-30 2005-08-11 Denki Kagaku Kogyo Kk 構造物の補修補強方法
JP2006233352A (ja) * 2005-02-24 2006-09-07 Toray Ind Inc 編組体および構造体の補修・補強方法
JP2007113346A (ja) * 2005-10-24 2007-05-10 Nippon Oil Corp 組紐状炭素繊維を使用したコンクリート構造物の剪断補強方法

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JP4638850B2 (ja) 2011-02-23
CN101512083B (zh) 2012-07-18
JP2008063745A (ja) 2008-03-21
TWI413724B (zh) 2013-11-01
CN101512083A (zh) 2009-08-19
TW200837261A (en) 2008-09-16

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