TW200837261A - Method of reinforcing existing structures using carbon fiber - Google Patents

Abstract

A braided carbon fiber material or belt-like carbon fiber material is applied, with a predetermined spacing therebetween, in a dry state, without being subjected to resin impregnation, directly to the unprimed surface of a structure being reinforced. Guide members that prevent the resin from dripping are then provided either in close contact with the carbon fiber or separated from the carbon fiber by a predetermined gap, and the carbon fiber material is then impregnated with a resin having a viscosity ranging from 0.1 Pa*s to 5 Pa*s and cured at a temperature of 20 DEG C, thereby simultaneously achieving adhesion of the carbon fiber material to the surface of the structure and conversion of the material to a fiber-reinforced composite.

Description

200837261 IX. Description of the invention: [Technical field to which the invention belongs] Reinforcement It is used to improve the performance of structural structures such as beams, plates, plates, and smoke. Patience or Wheeling [Prior Art] Beams or columns made of Γ /Γ, or bridges, smoke, etc., concrete structures, ^ ί, ίί: reduced resistance to endurance' Very big. In addition, in the previous Great Hanshin-Awaji Earthquake, the damage to the building that met the benchmark was slightly affected by the new treasury, and the construction of the existing structure was also required to meet the requirements of the new construction. When it takes a long time to make it, the cost is also very big. Therefore, the landing deterioration is a seismic strengthening project. In the case of the method of rework, it is known that a steel plate is wound around a column and the like, and there is a schematic diagram of a time required for the construction of a topic or a large-scale seismic compensation method. Also, Fig. 9 shows a flow chart.枉之耐ΐ ΓΐΪ ΓΐΪ ΐ ΐ ^ ( CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF CF Fat on the soil; inside with the lion f _. Also, at this time, if necessary, you can use = to wait; after painting, after the primer is applied to the cloth, the apologizes in the ring of the money, you must ϋΤίΓ手 7 200837261 must refer to the dry state, in the acrylic primer In this case, the button is scraped and the scratched state is completely hardened. Next, (fΐ ΓF#^CF ^ soil, after f°, the post-cooking is carried out so that the dipping is sufficiently hardened. 造== S = bubble is applied to the defoaming roll or the hand coating method There are reasons such as operation addition, construction _ domain, etc. μ correction, for the cost increase: in addition to the 1 layer treatment, it is necessary to repair the high and low modes 下: long and continuous cloth with the face removed, Dong + Yu 兮 l P female U tree month Japanese pre-woven tree _=== 200837261 The back of the ruler cloth is on both sides and rotates one of the materials. By using a device like this, the phase is set inside the Q roller. The heating time is shortened. The construction method can be used as a premise. In the same way as the conventional technology, it is necessary to completely wind the reinforced body with a curable resin or an epoxy adhesive such as an epoxy adhesive. The problem of poor thermal resistance such as resin. Moreover, because of the fact that it is considered to be a fascinating sensation, it is considered that the charm of the silk thread is not uniform, and that there is a known fiber with the shape of the CF sheet.植树赖合(四)(Gift I work ^ pre-formed into (4) grease primer and surface coating, but need to be dry, protrusions, etc. Off and the CF sheet were adhered like, it is necessary for an underlying = ί ίί old patch applied ΐ more massive than the planarizing cf sheet, or ί

The molded product. Therefore, in the case of the reinforcement method such as the column, I-, suspected that the method is applied, the surface of the soil is covered by the reinforced fiberboard, and it is extremely difficult, for example, in the case of a medium-scale earthquake. To mediate on the other hand, there is a known difference from the above comprehensive reinforcement, = method. For example, in the patent document 2 (Japanese Patent Laid-Open No. 62-244977 No. and No. 1 Document No. 3 (JP-A-62-2402058), the high-strength long-fiber belt is used for the seismic strengthening method of the existing column. In this case, there is a description of the fact that the fiber is impregnated, and the resin is impregnated before or after rewinding, but it is not described in detail. Patent Document 4 (Japanese Patent Laid-Open No. 2) - Xin (6) Bulletin), proposed: at 200837261

When the reinforcement is applied to the concrete column of the wall, the vertical column of the column on the wall has a large number of through-holes, and through the miscellaneous, the column is outside the column. At the time of impregnating the resin, depending on the hardening day of the resin _ bundle winding construction, the resin is impregnated at the same time, and it is wound and attached at the site. The beam is secondary to the tree, so that the construction method of the strip is almost unutilized in order to obtain the required amount of reinforcement.独韵ίϊίΐί The situation of the amount of S used in the above-mentioned sheet construction method can be easily obtained: Sister Yi ^ On the one hand, in Patent Document 5 (Japan Special Open 2000 - 73586 f Lu eight twist, with FRP reinforced patch, and Even if there is a rollback method in which the side is made to produce an opening, however, this = there is a part of the patch that is strong. Therefore, if it is with the patch end that becomes the starting point, the cloth will generate a gap, which will damage the reinforcing effect. Therefore, the method of filling the gap between the gaps in the gap between the people and the people is still a method of reinforcing the mortar by using a strip or a patch. Even after standing in the concrete, the concrete is cut out in two ways, after the occurrence of the medium-scale earthquake. The diagnosis is easy. If you have a smaller area than when winding the reinforced fiber sheet, you can use ίίί layer;" can be small and labor-saving. However, in order to obtain the filling strength: the bonding strength is required, the primer treatment is required. The dryness of the brother's knife [invention] It is not necessary to use the primers necessary for the prior art to deal with the people who are struggling, such as the diagnosis of the towel-scale earthquake, and the reinforcement required for the reinforcement of the small-scale The amount of carbon fiber used is more than the amount ^ Carbon fiber and even earthquake ίίίϋί for the method 'it is easy to carry out the medium scale 5 ^ ^ ^ V break and yoke work day guard to minimize the implementation of the underlying treatment, 曰甘10 200837261 ==== method to explore, the results found this The heart of the dish, but it is difficult to get a full face to immerse the fat in the fiber and then wind it up, but the problem is 3, and 'considering the pre-impregnation tree to reduce the viscosity of the impregnated resin to 丄二, After the horse p cattle is low, if the state causes the dripping of the resin, the second hard degree will have the guiding configuration winding of the drip liquid and the setting is used to prevent the change, and the fiber can be connected. The transformation of the reinforced composite material is performed by the reinforcing method for the existing structure of the fiber to be constructed, and the carbon fiber material is hardened for the 槿#a main & Drop (four) 丨 guide member and the above carbon =;:; two time: 'bonding to the structure and conversion to fiber strong' complex two = can' Μ to the primer treatment, it can achieve the contraction of the project _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ [Embodiment] The present invention will be described in detail below. Further, in terms of creation, the reinforced concrete column (10) is used. The 200837261 is not limited to the RC column, and is a flow chart of the construction procedure of the present invention. f First, the bottom layer of the construction site is treated (Sl). The coating on the surface of the bauxite is peeled off, and for the concrete table, the line will be coagulated to the arc of the corner, and the crack will be made for the crack. Plastic surgery, high and low differential processing, etc. ^ ' Μ 大 周 周 , , , , , , , , , , 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫 辫However, this is a fortune; The wound CF material is not immersed: ^It needs to be impregnated with the impregnated resin', so it is excellent in flexibility, and the operation is different because it is not strong, and it cannot be uniformly defined. When it is necessary to make up the secret of the soil column, it is preferable - , = for example, the toughness of the reinforced concrete column height).卩 异 2D (D-generation winding reinforcement, so that the coil from the end of the column is inserted below the predetermined interval. Also, the toughness is strengthened, and: (P) becomes 5 cm or more 'P/D becomes CF member overlap Ground winding. $Because more reinforcement is needed, it is better to apply the part other than * ^ ^. Also, send: K used in the month is 2, strong area, the invention can be strengthened It has a strong shearing and reinforcing effect. In addition, the secret is strong and especially effective. The Institute of Technology ("Breakage and strength" can be designed according to the railway construction technology, such as the application of the railway technology. The shock-resistant repairing work is also done in the third edition, and the design is designed to be safe. 12 200837261 After the CF material is placed on the mouth, the resin is impregnated and hardened, and the next day, the Fi-shi, the material on the surface of the structure Convert and convert to J = same (four) line

The material, therefore, even if it is intended to be coated with a bristled thief roll into the large > CF filling tool property. Therefore, in the present invention, a dipping method of setting: ', and a resin dripping liquid is used. In order to prevent the low-viscosity dip-lead guiding member, it is possible to prevent the resin dripping, that is, the m-use, as long as it is in contact with the CF material or in the gap of the guiding member ridges. A guiding member formed into a l-shaped material excellent in plastic release property. For example, it is possible to form the guiding member' or apply a known releasing agent, and to increase the lightness, the c_ and 3 are separated by the dry circumference. By providing the guiding member through the gap, the shape of the carbon fiber is covered with a certain thickness of the resin, and the surface is protected. When the gap is provided, the isolation distance is not determined as shown in the following figure. 2. The guiding member is brought into contact with the lower portion of the CF material, and a space is provided between the sides of the member. After the guiding member is set in this manner, the impregnating resin is implemented. When the impregnation resin is applied, as shown in Fig. 2, the CF material 2 wound around the RC column 1 is dropped with the meniscus 4, and the guiding member 3 is used to prevent dripping. When the resin is impregnated, a special type of cloth can be used. Moreover, in order to further improve the impregnation property of the resin, a sealing member may be used to form a hermetic structure, and a pressure reduction treatment such as vacuuming may be performed. In the present invention, since the member is impregnated with the resin by the provision of the guide, the amount of the resin is easily optimized, and the use is not wasted. . After the tree wax is hardened, or the resin is semi-hardened (the viscosity rises to a degree that does not drip), the guide member is removed. When it is not particularly necessary to consider the Meiqin or the like, the guiding member can be retained in the original state. . , a 13 200837261 This is the same 'to maintain the appearance of the surface, in the boot component split ίί : ? ^ ^ ΐ ίίίί (1st embodiment), after winding (four) material, ίί ΐ: 亚 ? dip Although the resin is broken, it is also possible to use a method in which the CF material is wound by two or more members ΐΐϋϊ ΐ , and then the remaining members are provided, and then the resin is impregnated. 2_ The guide member formed by the upper member (hereinafter referred to as the reinforcing method (second embodiment). Flow chart. Construction ^ Sequence === Figure ρ shows the construction from the lower part of the paper -~rcF#^ t, but, in the case of 峨, etc. ct Jing; the upper part of the material, and the creation of a confined space is set here. Although the use of beef material shells with plastic materials such as foamed polyethylene, but not limited to S. 1 · I first, regarding the underlying processing 'as in the first embodiment, a S2 is omitted here. Secondly, in the winding cf material (24) arrow, the line is used for the CFB blocking member υ (2υ p = (21) The surface enters the CFS, and the butterfly mark is interposed between the predetermined 卩. For the CFB resistance dg (22l, set, install the CFB block A (23). In this way, make the rabbit [Female Hongkou in Figure 4, The base that is in contact with the crotch portion of the CF material/material (24 RC column (21) and the CF material (24) but not limited to this H) when bonded to the Rc column (21) The surface of the two faces is L-shaped, set. In this example, the base of the ^"^牛A (23) is marked with the mark on the RC column (2). The middle part of the CF 接 CF CF CFB block A (23) Point installation 14 200837261 54. The winding of the strand material or the strip-shaped CF material (unimpregnated resin) is carried out on the basis of the base portion of the CFB stopper a (23) provided. The winding amount is based on the first embodiment described above. Form. ” 55 · After CF material is wound, install CFB blocker B (25). CFB blocker B, as long as it is combined with (4)_piece A, the impregnating resin leaks in the process: Further, in Fig. 4, a space is provided on the side surface of the CF material 24, and the distance of the gap is in accordance with the first embodiment. Further, the side of the contact material % is provided.

S6: Its: owe, the real secrets are red. The purpose of injecting the lining into the system (26) is not limited to this. =: In the same manner as in the first embodiment, the CFB resistance as the guiding member is mounted. However, it is also possible to keep the original state without being removed, or to remove only the CFB blocker B while keeping the CFB blocker A in the original state. In the λ form, the CF material is implanted by using the base of the CFB blocker (CFB blocker A) as a reference, and the winding of the CF material is completed. This volume is more quickly implemented at a given interval. <CF material> The following: ί ΐ 材料 material, all with a member width of 10 or more m «Γί l〇g/m^l〇Og/m 0 , 4 It is effective to enter the fiber and the early weight of the area. For example, the weight per unit area of the carbon fiber sheet of Xiqiang is determined by the method of the heart, and the strip cf used in the present invention is used. The material, that is, the fiber, is doubled over the conventional carbon fiber sheet, and the resin is impregnated into the fiber on the work site.) Still the wound is 1. The strip-shaped CF material is only one side: 30, as shown in Fig. 5, with a carbon fiber bundle As the warp 31, the structure is not uniform, and the woven line 32 of polyethylene or the like is bundled into a cloth shape: the ti jin is made equal to the 隹 。. Further, the latitude 疋 is in the present invention. Use coarse fiber as the weft. It can improve the impregnation of the resin. The weft used, if you use 0 lm fiber, you can get Good results and, if the weft holding coffee ~5mm the crude linear carbon fibers as the warp, is preferred: ',,, ~, is able to

30 CP f on-site pull-up system, such as the material shooter delivery, 2 aspects, as shown in Figure 6, connected by the connecting line, more difficult. In view of the fact, the strips with a large single-sided product weight are used, and the strips are connected by a connecting line. Therefore, the number two can be used. In addition, the knot can be used in conjunction with the shape of the part ίίΐ=ί in the original state to form a strip-shaped CF# material. The money, the line and the Lv, can be 2. The rope material of the reincarnation, the material reins "= basic; L is only composed of the warp, and the "η" "woven" composed of warp and weft does not the same. In the present invention, the shape of the ί, and the chime and/or the 辫 辫 。 are used. Further, there is a circular shape of the CF material which is woven into a flat rope shape. Figure 7 shows the formation of 8 strands of round 辫3·in the reinforced fiber, using carbon fiber 'however, in the range without problems, it can be used as appropriate, and other materials are used in combination, and the anti-fiber used for the visit is used, for example, in According to JIS K 7073

==== Among the tensile test methods, the high-strength type is Wx early 1. The type is 4.4〇xl〇5N/mm2, and the high elastic type is 6.40X 16 200837261 10 N/mm. <Immersion resin> A room temperature hardening type or a thermosetting type epoxy resin can be used, and | is an epoxy resin which uses a ceiling heat curing type. In the present invention, the better the mussels are better, especially in the chat.

K〇NISHI«)tSa〇^rCFB5〇〇j H wei method, resin gray fine low viscosity epoxy resin. These examples are in addition to the third embodiment, but the present invention is limited to the embodiments 1, 2 &lt; reinforcing member&gt;

For the carbon fiber to be used, the product name rT0RAYCA T700S 12K" by TORAY (tensile strength = 49 〇〇] y [pa, tensile modulus = 23 〇 GPa, ^ EX 800 g / km), rein CF material (Example) 1), set as 5 strips of 7 bundles, width 15mm, ^ 3〇g / m (single-sided product weight: 1〇〇〇g / m2). Further, the strip-shaped CF material (Example 2) was made to have a width of 3 mm by using the product name rT0RAYCA T700S-24K by TORAY (tensile strength = 49 (8), tensile modulus = (10), and TEX-l^Og/knO'. , Straight strip with weight s〇g/m (single-sided product weight: 1000g/m). Table 1 Tensile strength of tensile surface section Tensile elastic modulus section change (g/m) I (N/ Mm2) (N/mm') (X suspect) of mm 30 2,224 U)6x1W 23, 400 GF strip 30 3,800 2,39xl〇5 16,300 The above reins and strips are spaced at 100mm and the reins are 5 turns. The strips are wound in a stripe pattern on the bottom layer of reinforced concrete. 17 200837261 Next, a foamed polyethylene as a guide member is attached directly under the carbon fiber in which the stripe is wound, and then impregnated with a KONISHI brand name "CFB500" as a impregnating resin. The properties of the impregnated resin used are as follows. Further, 'resin has summer and winter use'. In the present embodiment, winter "QPB500W" is used. Table 2 Product Name CFBi 500S1 Summer) CFB500W (Winter) Project main agent hardener main agent hardener main component epoxy resin 1 medical polyamine epoxy resin modified alicyclic polyamine modified aliphatic polyamine Mercaptan mixture ratio (mass ratio) 2 1 2 1 Mixed viscosity 590mFa*s (20°C) 540ϊ Ti:Pa»s(20°Q) Tensile strength (M/mm2) Including each bed, He*, + · /士. 39,1 46.7 Test method: According to JIS K7113, model test method No. 1. 2〇〇c. After 7 days. After the grease is attached, the guiding member is removed at the time of the semi-hardening of the impregnating resin. After the heat was applied until the curing was completed, the adhesion was confirmed, and the filled material was found and the cross section was confirmed, and it was found that the resin was sufficiently impregnated to achieve a strong effect. σ X M The hardening material of the hardening material of this stalk is full of sufficiency. The simple explanation of the figure] The flow chart of the reinforcement method of the modal form. Figure figure. For example, Lin (4) 补 形态 形态 形态 — 部分 部分 部分 部分 部分 部分 部分 部分 部分 部分 部分 部分 部分 部分 部分 部分 部分 部分 部分 方法 方法 方法. Xian Linfa (4) 4 implementation of the lion's method of supplementing the age - part of the outline of the plan clearly f material to make the shape of the noodles dimension s display 4 inventions look for the use of the material for the use of money 18 200837261 morphological diagram. Fig. 7 is a view showing an outline of a string-shaped carbon fiber used in the reinforcing method of the present invention. Fig. 8 is a schematic view showing a reinforcing method using a conventional carbon fiber sheet. Figure 9 shows a flow chart of a method of reinforcement using conventional carbon fiber sheets. Fig. 10 is a view showing the description of the underlying processing (high and low difference processing) in the conventional engineering [main element symbol description] 221 21 RC column 2, 24 CF material 3 guiding member 4 impregnating resin 22 mark 23 CFB blocking member A 25 CFB Blocking member B 26 resin injection chestnut) 30 strip CF material 31 warp (carbon fiber) 32 weft 33 connecting line 19

Claims (1)

200837261 X. Patent application scope: !· A surface of the existing suede structure using carbon fiber is not treated with a primer, and the J-shaped stone mountain is separated from the dry state of the dip coffee to be reinforced: two ίί: or strip The stone f fiber material is impregnated with the resin and hardened, and the surface of the carbon structure is converted into a domain-axial composite material, and the material is connected to the material. When the resin is broken, the resin liquid is prevented from being dripped. a material or a reinforcing portion of the carbon fiber material that is in contact with the fiber of the carbon method is contacted with the vertical portion of the carbon fiber material, the surface portion, and the side wall portion, and the base portion of the carbon fiber material, and The outer side is opposite or separated by a predetermined series; and, the direction of the straightening direction of the reinforcing method includes: the base is separated by a predetermined spacing wire in the structure, (4) ίί ΐΐ 曼 曼 树脂 树脂 resin carbon fiber material It is disposed on the surface soil of the structure, and then, the side soil is shot 5 to the sub-portion, and then the carbon fiber is made to surround the first or second item of the carbon fiber-containing material, wherein, at 2〇t: , impregnating resin viscosity 〇1Pa · s or more = Strong two, such as the τ method of the existing structure of carbon fiber using the first or second item of the patent target of Vi, wherein the carbon fiber material has a member width of 10 mm or more and 5 mm by weight of 10 g/m. The range of l〇〇g/m. 5. The existing structure and method of the Hunan ♦ fiber according to Item 1 or 2 of the patent scope of claim 4, wherein the carbon fiber material is made of carbon fiber as a warp and braided by a tree weft. The strip (10) is used to eliminate the dimension (4), and the resin weft is formed by a bundle having a wire diameter Q lmm = 5 mm or less. 6. The method of applying the existing structure of the carbon fiber using the method of claim i, the towel, The carbon-aged material is given as a carbon age, and the strip-shaped carbon fiber material made of resin 20 200837261 is connected by a connecting line, and the Jiirf anaplastic fiber material is used in it: as claimed in the patent scope! or 2 Ground winding: work, the existing structure is coagulation: £= bribe structure supplement, quasi-clock or toughness reinforcement. Telluride, and use the carbon fiber 8 · as claimed in the third paragraph of the patent application In which the existing structure is a concrete "if existing structure" Reinforcement. The composition is utilized, and the carbon fiber method is used, wherein the existing H-rush existing structure is reinforced to perform shearing or toughness reinforcement. And the use of the carbon fiber 10. The method of using the carbon fiber 10. The existing structure is a concrete system, and the reinforcement of the product is sheared or toughened. Telluride, the use of the carbon fiber. The carbon-using method according to claim 6 of the patent application, wherein the existing structure is made of concrete, and the reinforcement of the material is sheared or #幽_.衣H亚_The carbon fiber XI, schema: