KR102236651B1 - Integrated quake-proof reinforcement method in which pillar, bottom surface and slave reinforced by inorganic ceramic sheet having multilayer is fixed by high elastical clamps using anchoring - Google Patents

Abstract

The present invention relates to a reinforcing bracket integrated seismic reinforcement method in which an inorganic ceramic sheet is bonded in multiple layers and reinforced pillars and floor surfaces, and reinforced pillars and slabs are fixed with anchors using high elastic reinforcement brackets. The present invention is a seismic reinforcement method of a deteriorated concrete structure, the first step of removing deteriorated concrete by chipping; A second step of forming a repair surface by washing the surface formed by removing the deteriorated concrete; A third step of restoring the section with a flame-resistant repair material while leaving the repair surface as much as the reinforcing thickness of the multilayer structure; A fourth step of coating the adhesive surface with flame retardant resin or epoxy resin so that the width is greater than that of the repair surface; A fifth step of reinforcing the inorganic ceramic fiber sheet by bonding it in a multilayer using a flame-retardant resin or an epoxy resin so that the width is greater than that of the repair surface; The sixth step of fixing the pillars and the floor surface reinforced with steps, the slabs reinforced with the steps and the pillars reinforced with the steps with an anchor using high elastic reinforcing brackets: and seismic resistance formed by bonding inorganic ceramic fiber sheets in a double layer. It consists of a seventh step of coating the reinforcement part with a flame-retardant coating material.

Description

An integrated seismic reinforcement method with reinforcing brackets that bonds inorganic ceramic sheets in a double layer and fixes the reinforced pillars and floors, and the reinforced pillars and slabs with an anchor using high elastic reinforcement brackets {INTEGRATED QUAKE-PROOF REINFORCEMENT METHOD IN WHICH PILLAR, BOTTOM SURFACE AND SLAVE REINFORCED BY INORGANIC CERAMIC SHEET HAVING MULTILAYER IS FIXED BY HIGH ELASTICAL CLAMPS USING ANCHORING}

The present invention is related to the applicant's Patent Registration No. 10-1636545.

The present invention relates to a reinforcing bracket integrated seismic reinforcement method in which an inorganic ceramic sheet is bonded in a double layer using a flame-retardant resin, and reinforced pillars and floor surfaces, and reinforced pillars and slabs are fixed with anchors using high elastic reinforcing brackets.

Concrete is the most commonly used material for buildings in that it can freely form a desired shape.

However, concrete is a material that exhibits effective strength in compression but is weak in tension. To compensate for this, reinforcing members using steel materials with excellent tensile strength have been used together, and as a representative tension member, there is a deformed reinforcing bar.

However, the reinforced member has a problem of corrosion when exposed to the outside due to a concrete crack, and the unit weight is heavy, so that there is a problem that excessive costs are incurred such as an increase in the self-weight of the structure and the transportation of the member.

Accordingly, in recent years, a construction method has been developed that uses a variety of new materials that are lighter and have higher tensile strength than reinforcing bars as a tension member.

Korean Patent Registration No. 10-1295029 discloses a method of constructing a high-strength lightweight building using a circular fiber rod.

However, in the prior art, using a circular rod-shaped fiber rod, there was a problem in that the maximum tensile efficiency compared to the cross-sectional area was not exhibited.

In addition, in the prior art, there is a problem in that it is not possible to provide a construction method of various structures using a fiber-based tension member. In addition, there is a problem in that the construction cost increases and the construction is difficult due to the shortcoming of the lengthening of the construction period.

Therefore, it can be widely applied to the earthquake-resistant reinforcement of important production buildings and facilities of private enterprises such as bridges, piers, concrete structures, which are important national facilities, piloti buildings vulnerable to earthquakes, school buildings, and multi-use facilities and apartment houses. The reinforced part has excellent flame-retardant performance and can be used semi-permanently without the need for special maintenance due to its chemical stability and weather resistance.Therefore, there is an urgent need for a vibration-resistant method that can greatly contribute to the reduction of human and property damage caused by earthquakes.

Korean Patent Registration No. 10-1295029

The present invention has been made in order to improve the problems related to the prior art as described above, and an object of the present invention is to reinforce the reinforced area using an inorganic ceramic sheet having excellent flame retardant performance and a flame retardant resin, so that the flame retardant performance after reinforcement is excellent, Pillars and floors reinforced by bonding and reinforcing inorganic ceramic sheets in a double layer using flame-retardant resin, making it possible to use semi-permanently without the need for special maintenance due to chemical stability and weather resistance, so that it can greatly contribute to reducing human life and property damage caused by earthquakes. Its purpose is to provide an integrated seismic reinforcement method of reinforcing brackets in which the surface, reinforced columns and slabs are fixed with anchors using high elastic reinforcement brackets.

The first embodiment of the present invention for achieving the above object

In the seismic reinforcement method of deteriorated concrete structures,

A first step of removing the deteriorated concrete by chipping;

A second step of forming a repair surface by washing the surface formed by removing the deteriorated concrete;

A third step of restoring the section of the repair surface with a flame-resistant repair material while leaving as much as the reinforcing thickness of the multilayer structure;

A fourth step of applying the adhesive surface to be coated with a flame retardant resin or an epoxy resin so that the width is greater than that of the repair surface;

A fifth step of reinforcing the inorganic ceramic fiber sheet by bonding it in a multilayer using a flame retardant resin or an epoxy resin to have a width greater than that of the repair surface;

A sixth step of fixing the pillars and floor surfaces reinforced by the above steps, the slabs reinforced by the above steps, and the pillars reinforced by the above steps with a special anchor using a high elastic reinforcing bracket: and

It characterized in that it consists of a seventh step of bonding the inorganic ceramic fiber sheet as a multilayer to coat the reinforced surface with a flame-retardant coating material.

The second embodiment of the present invention for achieving the above object

In the seismic reinforcement method of a concrete structure that is not deteriorated,

A first step of removing undegraded concrete and washing the formed surface to form a repair surface;

A second step of restoring the flame-resistant repair material by leaving the repair surface as much as the reinforcing thickness of the multilayer structure, and applying an adhesive surface to the repair surface with flame-retardant resin or epoxy resin;

A third step of reinforcing the inorganic ceramic fiber sheet by bonding it in multiple layers using a flame-retardant resin or an epoxy resin to have a width greater than that of the repair surface;

A fourth step of fixing the column and the bottom surface reinforced by the steps, the slab reinforced by the steps, and the column reinforced by the steps with a special anchor using high elastic reinforcing brackets; And

It characterized in that it consists of a fifth step of bonding the inorganic ceramic fiber sheet in a multilayer to coat the reinforced surface with a flame-retardant coating material.

As a method for achieving the present invention, the flame-resistant repair material applied to the third step of the first embodiment and the second step of the second embodiment,

30 to 45% by weight of natural sand with a particle diameter of 1.5mm or less, 30 to 45% by weight of 1st Portland cement, C12A7 fine minerals (powder degree: 10,000 braine (cm2/g) or more) 1 to 10% by weight, C3A fine minerals (powder Figure: 10,000 braine (cm2/g) 5 to 15% by weight, alpha-type semihydrated gypsum 1 to 10% by weight, hydrophilic polypropylene short fiber (length: 10mm) 0.5 to 5% by weight, water reducing agent 0.1 to 2% by weight, lithium silicate 0.1 to 2% by weight, lithium hydroxide 0.1 to 2% by weight, citric acid powder 0.1 to 2%, bubble remover 0.1 to 2% by weight, acrylic resin powder with a purity of 99.9% or more, 0.5 to 5% by weight, aluminum metal powder 0.001 to 0.01% by weight It characterized in that it consists of.

According to the integrated seismic reinforcement method in which the inorganic ceramic sheet of the present invention is bonded in a double layer using flame-retardant resin, and the reinforced pillars and floors, and the reinforced pillars and slabs are fixed with special anchors using high elastic reinforcing brackets, It can be widely applied to all-in-one seismic reinforcement of bridges, piers, concrete structures and piloti buildings vulnerable to earthquakes, major production buildings and facilities of private enterprises such as school buildings, multi-use facilities and apartment houses.

In addition, the reinforced part has excellent flame retardancy and can be used semi-permanently without the need for special maintenance due to its chemical stability and weather resistance, which can greatly contribute to the reduction of human and property damage caused by earthquakes.

1 is a process flow chart of the seismic reinforcement method according to the first embodiment of the present invention.
Figure 2 is a process flow chart of the seismic reinforcement method according to the second embodiment of the present invention.
3 is a view showing a state in which a seismic reinforcement part is constructed in a double layer according to an embodiment of the seismic reinforcement method of the present invention.
4 is a view showing a state in which a seismic reinforcement part is constructed as a double layer on a circular column to which the present invention is applied.
5 is a view showing that the reinforced pillar and the floor surface according to the present invention are integrally fixed by anchoring reinforcing brackets.

In the present invention, various modifications may be made and various embodiments may be provided, and specific embodiments will be illustrated in the drawings and described in detail in the detailed description.

However, this is not intended to limit the present invention to a specific embodiment, it should be understood to include all changes, equivalents, or substitutes included in the spirit and scope of the present invention.

The terms used in the present invention are used only to describe specific embodiments, and are not intended to limit the present invention.

Unless otherwise defined, all terms used herein including technical or scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs.

1, 3 to 5, the first embodiment of the present invention is a reinforcing system and a bottom surface of a multi-layer structure constituted by adhering a flame-retardant resin to an inorganic ceramic sheet woven with basalt fiber, which is an inorganic ceramic fiber. Reinforced columns, slabs and reinforced columns are fixed with special anchors using high-elastic reinforcement brackets. This is about the integrated seismic reinforcement construction method of reinforced concrete structures, and proceeds to the next process.

1. Remove deteriorated parts of concrete by chipping and clean the surface condition (S10).

2. In order to improve the adhesion of the repair surface (construction surface), the surface is high-pressure washed with a high-pressure water spray (S11).

3. At an average temperature of 5℃ or higher, repair the section of the concrete structure with a flame-resistant repair material. (S12)

4. At an average temperature of 5℃ or higher, apply a primer with a bot or roller so that it evenly penetrates the reinforcing surface using flame-retardant resin or epoxy resin. (S13)

5. After evenly applying flame-retardant resin or epoxy resin to the inorganic ceramic sheet, it is adhered in multiple layers at regular intervals to form the seismic reinforcement part (2), and at this time, the part overlapping with the part other than the seismic reinforcement part shall be 10 cm (S14). )

6. Anchor the column (1) and the bottom surface, the column (1) and the slab (5) using reinforcing brackets. At this time, the material of the reinforcing bracket is duralumin steel. (S15)

7. Apply the seismic reinforcement part (2) using a flame-retardant coating agent. (S16)

The flame retardant resin is an inorganic flame retardant, and may be any one of aluminum hydroxide (Al(OH)3), magnesium hydroxide (Mg(OH)2), and calcium carbonate (CaCO3).

The inorganic ceramic sheet is a fiber sheet and, for example, is made from basalt fiber and is produced inexpensively from basalt with a low-energy production method, yet has non-flammable, heat-resistant, moisture-proof, abrasion-resistance, corrosion resistance, and excellent elasticity and high strength characteristics. It is fiber silol.

The present invention is intended to compensate for the disadvantage that the reinforcement part is lost in the event of a fire because of the vulnerability to fire due to the use of organic materials such as carbon fiber and epoxy resin by using a non-flammable fire-retardant basalt fiber sheet as an inorganic material and a flame-retardant resin as a seismic reinforcing material. I did.

The properties of the basalt fiber sheet are shown in Table 1 below.

Properties Actual value Tensile strength (MPa) 500 or more Strain 2.0 or higher Modulus of elasticity (GPa) 25.0 or more Thickness(mm) 0.7 to 1.0 Width(cm) 50-100cm

The properties of the flame-retardant resin for bonding the basalt fiber sheet are shown in Table 2 below.

Properties Actual value standard Test Methods Tensile strength (MPa) 55 More than 300 KS M 3006 Compressive strength (MPa) 110 70 KS M 3008 Compression modulus (MPa) 200 150 KS M 3816 Flexural strength (MPa) 75 40 KS M 3816 Flame retardant 94V 94V-0

The salt-resistant repair material is 30 to 45% by weight of natural sand with a particle diameter of 1.5mm or less, 30 to 45% by weight of Portland cement, 1 to 10% by weight of C12A7 fine minerals (powder degree: 10,000 braine (cm2/g) or more), C3A fine mineral (powder degree: 10,000 braine (cm2/g) 5 to 15% by weight, alpha-type hemihydrate gypsum 1 to 10% by weight, hydrophilic polypropylene short fiber (length: 10mm) 0.5 to 5% by weight, water reducing agent 0.1 to 2 Wt%, lithium silicate 0.1 to 2 wt%, lithium hydroxide 0.1 to 2 wt%, citric acid powder 0.1 to 2%, bubble remover 0.1 to 2 wt%, acrylic resin powder with a purity of 99.9% or more, 0.5 to 5 wt%, aluminum metal powder It consists of 0.001 to 0.01% by weight.

The C12A7 fine mineral material (powder degree: 10,000 braine (cm2/g) is a mineral rapid setting material, which is used to adjust the curing time of the repair material and grout material according to the purpose).

If an excessive amount is added to shorten the curing time, the work time is rapidly shortened and the workability is deteriorated. Therefore, the required working time can be secured by controlling the amount of citric acid serving as a retardant among the above materials in parallel. The appropriate amount of fine minerals is preferably 1 to 10% by weight of the total.

In addition, C3A fine minerals react with alpha-type hemihydrate gypsum to express the non-shrinkability of repair materials and injection materials, and in detail, C3A according to the granulation rate of fine aggregates and the amount of cement used in order to develop expandability to compensate for the shrinkage rate that occurs during the hydration reaction of cement. It is preferable to use the appropriate amount of fine minerals in the range of 5 to 15% by weight of the total, and 1 to 10% by weight of alpha-type hemihydrate gypsum.

In addition, short hydrophilic polypropylene fibers are used to suppress dry shrinkage cracks caused by rapid evaporation of moisture from the repair material, and if excessive amounts are used, coagulation occurs during manufacturing and construction, so the amount of use is 0.5 to 5% by weight of the total. desirable.

The water reducing agent is used to reduce the amount of water used in the repair material and injection material, so that the first purpose is to develop high strength, and the second purpose is to minimize the moisture content during construction and suppress moisture evaporation to prevent dry shrinkage cracks. Silver is preferably 0.1 to 2% by weight.

In addition, lithium silicate is used to extend the endurance life longer by improving the alkali recovery and watertightness and restoring it to a stable concrete structure after construction because the concrete to be repaired is deteriorating and neutralization is in progress. It is preferably ~ 2% by weight.

In addition, lithium hydroxide is used as a curing accelerator to remove abnormal curing phenomena (expansion, etc.) through the instability of the hydration reaction that may occur due to excessive changes in the rapid setting of C12A7 fine minerals to control the curing time. And, the appropriate dosage is preferably 0.1 to 2% by weight of the total composition.

Acrylic resin powder with a purity of 99.9% or more is an emulsion powder having the best chemical resistance, and in particular, plays a role of expressing the performance as a core raw material for a salt-resistance repair material, and an appropriate amount of use is preferably 0.5 to 5% by weight of the total composition.

In addition, citric acid as a retarder is used to control the rapid setting of C12A7 fine minerals to extend the working time of the repair and injection material, and is used in proportion to the amount of C12A7 fine minerals, and the appropriate amount is preferably 0.1 to 2% by weight. .

Table 3 shows the mixing table and the test results in Table 4 for an example of a curing time-controlled salt-resistant concrete cross-section repair material composed of the composition as described above. Table 3 is a unit by weight, and other components are mixed in a predetermined weight part with respect to the weight of cement for each curing time.

Mixing by raw material curing time 1 hours 2 hours 4 hours 6 hours 12 hours 24 hours 48 hours 72 hours cement 40 45 46.4 47 47 47 48 48 sand 35 33 33 33 33 33 33 33 C12A7 5 3 One 0.5 0.3 0.2 0.1 0.1 C3A 5 6 8 8 8 8 8 8 Alpha-type hemihydrate gypsum 5 5 5 5 5 5 5 5 Polypropylene fiber 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Acrylic resin 5 5 5 5 5 5 5 5 Supervision 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Citric acid One 0.5 One 0.05 0.01 - - - Bubble remover 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Lithium silicate 1.5 0.5 0.1 0.1 0.1 0.1 0.1 0.1 Lithium hydroxide 1.6 One 0.5 0.1 0.05 0.01 - - Aluminum metal powder 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005

Formulation number evaluation factor standard/
unit One
time 2
time 4
time 6
time 12
time 24
time 48
time 72
time exam
standard Adhesion strength kgf/cm2 12 13 14 14 16 16 18 18 KSM2609 Compressive strength by hardening time kgf/cm2 250 380 402 410 420 420 520 530 KS M6010 Flexural strength by curing time kgf/cm2 5.6 6.2 6.6 6.6 6.6 6.6 9.6 10.6 KSM2609 Length change rate Abnormality -0.01 -0.01 -0.01 -0.01 -0.01 -0.01 -0.02 -0.015 KS M5000 Weight change after 7 days immersion in 5% sulfuric acid solution Abnormality radish radish radish radish radish radish radish radish Chemical resistance Cracking Abnormality radish radish radish radish radish radish radish radish

As shown in Figs. 2 to 5, the construction procedure of the second embodiment, which is the seismic reinforcement method of the non-degraded concrete structure of the present invention, is as follows.

1. Remove the deteriorated concrete part by chipping and clean the surface condition of the formed repair surface cleanly (S10).

2. Repair the section of the concrete structure with a flame-resistant repair material, and apply a primer with a bot or roller to evenly penetrate the repair surface using a flame-retardant resin at an average temperature of 5℃ or higher. (S11)

3. After evenly applying the flame-retardant resin to the inorganic ceramic sheet, it is adhered in multiple layers to form the seismic reinforcement part (2), and at this time, the area overlapping with the parts other than the seismic reinforcement part shall be 10 cm. (S12)

4. Anchor the column (1) and the bottom surface, the column (1) and the slab (5) using reinforcing brackets. The material of the reinforcing bracket is made of duralumin steel. (S13)

5. Apply the seismic reinforcement part (2) using a flame-retardant coating agent (S14).

The difference of the second embodiment from the first embodiment is that instead of applying a flame-retardant resin or epoxy resin to a member having a width larger than the repair surface and then bonding the basalt fiber as a multi-layer to reinforce it, carbon fiber is applied to a member having a width larger than the repair surface. It is reinforced by adhering composite fibers and epoxy resins or flame-retardant resins, which are mixed and woven in the same weight ratio, with an epoxy resin or a flame retardant resin.

The carbon fiber is molded to have an arbitrary thickness, and then bonded and cured with an epoxy resin, and is similar to a conventional fiber reinforced plastic (FRP), and in particular, a carbon fiber having strong toughness is used for mechanical properties and weather resistance. It is bonded and cured on this strong epoxy resin.

The basalt fiber is a basalt fiber yarn that is produced inexpensively from basalt by a low-energy production method and has non-combustible, heat-resistance, moisture-proof, abrasion-resistance, corrosion-resistance, and excellent elasticity and high strength characteristics.

An embodiment of the present invention is to manufacture an inorganic ceramic sheet made by weaving such basalt fibers, for example, weaving in a horizontal 45° diagonal direction using not only vertical warp yarns and horizontal weft yarns, but also left warp yarns and right warp yarns. As a result, it acts as a multi-directional reinforcing fiber sheet that expresses multi-directional reinforcing stress against earthquake motions or structural loads acting on the structure in any direction. Rather, it acts as a multi-directional seismic or structural reinforcement that creates an immediate reinforcing stress by weaving and weaving the tissue points with fine yarn so that each yarn is woven flat without wave.

In the seismic reinforcement method of the present invention, as shown in FIG. 3, the seismic reinforcement part 2 made of an inorganic ceramic sheet is formed in a double layer at regular intervals, and the interval is 50 cm in principle, but the concrete to be reinforced By constructing in inverse proportion to the reinforcing bar spacing, it is possible to secure more robust seismic reinforcement performance.

The seismic reinforcement method of the present invention can be applied to all concrete pillars (1), floors, and slabs (5) without limitation in their shape, such as circular or square, as shown in FIGS. 3 and 4, and as described above. In principle, the gap between the progressive steel section (2) is 50cm, but by constructing it in inverse proportion to the reinforcement spacing of the concrete to be reinforced, a more robust seismic reinforcement performance can be secured.

FIG. 5 shows that the reinforced pillar 1 and the bottom part are integrally fixed by anchoring the reinforcing brackets 10. For example, a duralumin steel plate having a thickness of 10 mm, a width of 100 mm, and a length of 500 mm is referred to as “b”. It is a diagram showing the construction of a reinforcing bracket 10 that is bent in a ruler shape and formed with four anchor holes with a diameter of 20 mm at intervals of 100 mm from the end.

The reinforcing bracket 10 made of duralumin is installed to be partially embedded in the concrete structure, and the anchor bolt 20 is also completely buried in the anchor hole of the reinforcing bracket 10 so that an inclined surface of 45° with respect to the vertical or horizontal surface is formed. Insert it to prevent unevenness on the surface of the integrated concrete structure.

In other words, even if concrete piers or pillars are reinforced, columns, piers and floors reinforced by this method are integrated to compensate for the problem of being vulnerable to earthquakes at the joints of columns, piers and floors, or at the joints of columns, piers and slabs. In order to integrate the slab with the pillars and piers, it is supplemented by anchoring reinforcing brackets made of high-elastic special steel.

On the other hand, in the present invention, as another embodiment, an inorganic fiber sheet as a reinforcing material may be manufactured in a honeycomb type. By doing so, the contact area between the concrete matrix and the reinforcing material is increased, while at the same time, it is possible to obtain the effect of dispersing stress on the concrete structure Structural mechanical properties of the concrete structure can be improved by the stable structure of the reinforcement itself. In other words, it is possible to increase the mechanical and physical properties of concrete structures (tensile strength, compressive strength, flexural strength, resistance to cracks, shear strength, impact resistance and ductility, etc.), and various concrete structures (bridges, tunnels, earthquake-resistant concrete structures, etc.) , Ground, buildings, etc.) can be expected to be effective in seismic repair and reinforcement.

An embodiment of an integrated seismic reinforcement method of reinforcing brackets has been described in which an inorganic ceramic sheet is bonded in multiple layers and reinforced pillars and floor surfaces, and reinforced pillars and slabs are fixed with anchors using high elastic reinforcing brackets. The examples described above are illustrative of some of the many specific embodiments that represent the principles described in the present invention. Accordingly, by using the embodiments of the present invention, those skilled in the art will be able to easily implement many other arrangements within the scope defined by the claims of the present invention.

1: pillar 2: seismic reinforcement part
5: slab 10: reinforcement bracket
20: anchor bolt

Claims (4)

In the seismic reinforcement method of deteriorated or non-degraded concrete structures,
A first step of removing the deteriorated or non-degraded concrete by chipping;
A second step of forming a repair surface by washing the surface formed by removing the deteriorated or non-degraded concrete;
A third step of restoring a section of the repair surface with a flame-resistant repair material at 5°C or higher, leaving as much as the reinforcing thickness of the multilayer structure;
The flame-resistant repair material is 30 to 45% by weight of natural sand with a particle diameter of 1.5mm or less, 30 to 45% by weight of Portland cement, 1 to 10% by weight of C12A7 fine minerals (powder degree: 10,000 braine (cm2/g) or more) Fine minerals (powder degree: 10,000 braine (cm2/g) 5 to 15% by weight, alpha-type semihydrated gypsum 1 to 10% by weight, hydrophilic polypropylene short fiber (length: 10mm) 0.5 to 5% by weight, water reducing agent 0.1 to 2% by weight %, lithium silicate 0.1 to 2% by weight, lithium hydroxide 0.1 to 2% by weight, citric acid powder 0.1 to 2%, bubble remover 0.1 to 2% by weight, acrylic resin powder with a purity of 99.9% or more, 0.5 to 5% by weight, aluminum metal powder 0.001 Consisting of ~ 0.01% by weight,
A fourth step of coating the adhesive surface with flame retardant resin or epoxy resin at 5°C or higher so that the width of the repair surface is greater than that of the repair surface;
Composite fiber and epoxy in which a flame-retardant resin or epoxy resin is applied to a member having a width greater than the repair surface and then reinforced by bonding a double layer of basalt fiber, or carbon fiber and basalt fiber are mixed and woven at the same weight ratio on a member having a width larger than the repair surface. A seismic reinforcement part is formed by bonding resin or flame-retardant resin in a double layer at 50cm intervals, and by constructing in inverse proportion to the reinforcement spacing of the concrete to be reinforced, it is possible to secure more robust seismic reinforcement performance. A fifth step in which the overlapping portion is 10 cm;
In the fifth step, the composite fibers are woven in a 45° diagonal direction using vertical warp yarn, horizontal weft yarn, left warp yarn and right warp yarn to express multidirectional reinforcing stress against seismic motion or structural load acting on the structure. It acts as a multi-directional reinforcing fiber sheet, and each yarn is woven by weaving the tissue points by means of a cross-weaving method that goes up and down at the crossing points or by fine yarn so that each yarn is woven flat without wave, so that the reinforcing stress is expressed. , Or honeycomb type to increase the contact area between the concrete matrix and the reinforcement to obtain stress distribution for the concrete structure, and at the same time, the tensile strength, compressive strength, flexural strength, and resistance to cracks of the concrete structure due to the honeycomb type stable structure. , To increase shear strength, impact resistance and ductility,
A sixth step of fixing the pillars and bottom surfaces reinforced by the above steps, the slabs reinforced by the above steps, and the pillars reinforced by the above steps with an anchor using high elastic reinforcement brackets: And
In the sixth step, the reinforcing bracket is formed by bending a duralumin steel plate having a thickness of 10 mm, a width of 100 mm, and a length of 500 mm in a “b” shape to form four anchor holes with a diameter of 20 mm at intervals of 100 mm at the ends. Install so that a part is buried, and insert the anchor bolts so that they are completely buried in the anchor holes of the reinforcing brackets to form an inclined surface of 45° with respect to the vertical or horizontal surface, so that unevenness does not occur on the surface of the integrated concrete structure.
It consists of a seventh step of coating the seismic reinforcing surface formed by bonding the inorganic ceramic fiber sheet in multiple layers with a flame-retardant coating material. An integrated seismic reinforcement method of reinforcing brackets that is fixed with anchors using high elastic reinforcement brackets. delete delete delete

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