KR101626395B1 - Method for Repairing or Reinforcing Concrete Structure - Google Patents

Method for Repairing or Reinforcing Concrete Structure Download PDF

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Publication number
KR101626395B1
KR101626395B1 KR1020150106324A KR20150106324A KR101626395B1 KR 101626395 B1 KR101626395 B1 KR 101626395B1 KR 1020150106324 A KR1020150106324 A KR 1020150106324A KR 20150106324 A KR20150106324 A KR 20150106324A KR 101626395 B1 KR101626395 B1 KR 101626395B1
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KR
South Korea
Prior art keywords
profile
concrete structure
reinforcing
repairing
longitudinal direction
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Application number
KR1020150106324A
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Korean (ko)
Inventor
신동구
박대오
서창형
Original Assignee
리플래시기술 주식회사
주식회사 동방건설
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Priority to KR1020150106324A priority Critical patent/KR101626395B1/en
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Publication of KR101626395B1 publication Critical patent/KR101626395B1/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D37/00—Repair of damaged foundations or foundation structures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0006—Plastics
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder
    • E02D2300/0021—Mortar

Abstract

The present invention relates to a method of repairing and reinforcing a concrete structure, which comprises a ceiling clearance step, an anchor installation step, a ceiling stiffener installation step, a profile installation step, and a mortar filling step for repairing and reinforcing the concrete structure. Wherein the profile is cut in a predetermined size and installed in the longitudinal direction using a coupling device so that both ends of the profiles are inserted into the groove of the connecting member in the profile installing step .
The present invention also relates to a method for repairing and reinforcing a concrete structure, comprising the steps of: a floor preparation step, an anchor installation step, a floor reinforcement installation step, a profile installation step, a sealing step between the right and left side walls of the profile and the concrete structure, In the method for repairing and reinforcing a concrete structure, The hooks of the clips inserted into the bottom stiffener are fitted in the projections between the profiles adjacent to each other in the profile installation step and the profiles are extended in the longitudinal direction along the longitudinal direction of the concrete structure so that the concave- The present invention relates to a repairing and reinforcing method of a concrete structure.
According to the method for repairing and reinforcing a concrete structure according to the present invention, it is possible to simplify construction and reduce construction time without moving heavy mechanical equipment frequently.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing or reinforcing concrete structures,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair and reinforcement method using a profile to stabilize an underground structure or a waterway structure such as a box culvert used as a concrete structure, particularly a sewer pipe, 0981091 ("Repair and Reinforcement Method for Concrete Structures").

In general, concrete structures are rapidly degraded over time due to deterioration caused by quality problems of concrete, neglected maintenance, mechanical, physical and chemical effects, and environmental influences. That is, when the deterioration phenomenon proceeds, fine cracks are generated in the concrete structure. The micro cracks penetrate from the surface to the inside of the concrete structure to promote peeling and detachment of the concrete. As a result, the load bearing capacity (the strength with which the structure can bear the load) of the concrete structure is lowered.

Concrete structures with reduced load bearing capacity should be repaired and reinforced for the purpose of prolonging their service life. Especially, in case of a concrete structure having a ceiling part such as a box culvert, the reduction of the cross section of the ceiling part may cause collapse of the structure, so it must be repaired and reinforced.

However, in the conventional method of repairing and reinforcing a concrete structure, it is necessary to fill a mortar with filler or filler (repair or reinforcement) and fill the mortar with a certain thickness on the surface to be repaired or reinforced, It was impossible to expect an excellent load-carrying effect. In addition, there is a method of attaching an iron plate or a resin-impregnated fiberboard to the surface to be repaired or reinforced, but in the case of an iron plate, the strength is rapidly lowered due to corrosion and the like, There is a problem in that it is easily removed from the surface to be repaired / reinforced and the adhesion force is required to be supplemented.

In order to solve such a problem, the present applicant has proposed a method of repairing and reinforcing a concrete structure by arranging a surface to be repaired / reinforced in the applicant's pre-registered patent No. 10-0981091 ("Concrete structure repair / reinforcement method"). Providing an anchor on the object surface; Installing a stiffener made up of a main body and an exhaust core; Providing a space by providing a finishing material acting as a form; And charging the mortar to the space provided above.

The present applicant has been repairing and reinforcing the concrete structure in the field according to the above patent, however, when the profile is installed in the step of installing the finishing material (profile) by cutting the profile in the lateral direction (see FIG. 8) .

Also, when repairing and reinforcing the bottom of the concrete structure according to the conventional method, the heavy support material is pressed for 2-3 days in order to prevent the profile from being lifted from the mortar until the mortar is filled after the mortar is filled in the concave- I had to give. This work has resulted in too much time and effort and a need to improve it.

Therefore, the inventor of the present invention has studied a method of simple construction and time saving. As a result, it has been found that when a profile is installed as a finishing material in the longitudinal direction (longitudinal direction) and the floor of a concrete structure is repaired or reinforced, The clip is fastened to the recess of the profile, thereby realizing that the construction can be simplified and time can be saved without frequent movement of the mechanical equipment or heavy support, and the present invention has been accomplished.

It is an object of the present invention to provide a method of installing a profile as a finishing material in a longitudinal direction (longitudinal direction) of a concrete structure and inserting a clip having a hook into a reinforcing material to fasten the same to the recess of the profile, And to provide a method of repairing and reinforcing a concrete structure using a profile that can save time.

The object of the present invention is to provide a method for repairing and reinforcing a concrete structure, comprising the steps of arranging a ceiling which is a surface to be repaired and reinforced, installing a plurality of anchors on the assembled ceiling, A step of installing a plurality of main spindles and a main spindle as a stiffener so as to form an arched shape, installing a hanger connected to the installed main spindle so that a mortar filling space is formed between the ceiling and the profile, And filling mortar in the filling space to form a mortar layer, the method comprising the steps of: Wherein the profile is cut to a predetermined size, and both ends of the profiles are inserted into the groove of the connecting member in a longitudinal direction using a coupling device.

According to another aspect of the present invention, there is provided a method for repairing and reinforcing a concrete structure, comprising the steps of arranging a bottom of the concrete structure as a surface to be repaired / reinforced, installing a plurality of anchors on the bottomed bottom, A step of installing a profile at a predetermined interval along the longitudinal direction of the concrete structure, a step of installing a profile, a step of shielding the front and rear sides of the concrete structure between the left and right side walls thereof by a sealing material, And filling the mortar with a second space between the object surface and the profile, the method comprising the steps of: The hooks of the clips inserted into the bottom reinforcement in the step of installing the profile are fitted to the recess between the profile and the adjacent profile and the longitudinal direction of the concrete structure is set by the engaging device so that the concave- And a longitudinally extending profile is provided along the longitudinal direction of the concrete structure.

According to another embodiment of the present invention, the clip is made of a soft plastic material and is composed of a body and a hook, and the body is cylindrical and has an upper part thereof cut and folded or widened along the longitudinal direction, And one hook is attached to each of the hooks on both sides.

In another aspect of the present invention, in the step of installing the profile in the longitudinal direction, the profile is cut to a predetermined size, and both ends of the profiles are inserted into the groove of the connecting member. ㆍ Provide reinforcement method.

According to another embodiment of the present invention, in a curved concrete structure, a profile obtained by cutting a straight portion of a curved portion into a curved line is cut along an outer arc and an inner arc of the curved portion, and the two connecting members are radially installed The right end of the first profile and the left end of the third profile are inserted into both grooves of the I-shaped connecting member, and the left end of the second profile and the right end of the third profile are inserted into the both grooves of the I- The present invention provides a method of repairing and reinforcing a concrete structure.

According to the repairing and reinforcing method of a concrete structure using a profile according to the present invention, it is possible to simplify the construction and reduce the construction time without moving heavy mechanical equipment frequently. For example, if a concrete structure 200 m in width x 1.5 m in length and width is installed as a finishing material in a conventional manner, 2500 pieces of 80 mm should be installed. On the other hand, according to the method of the present invention, You only need to install it. Therefore, the construction method is simple and the construction time can be greatly reduced.

1 is a perspective view of a concrete structure repaired and reinforced by a method according to a first embodiment of the present invention,
2 is a process diagram of the repair and reinforcement method according to the first embodiment of the present invention,
Figs. 3 to 7 are views for the respective steps of the repair and reinforcement method shown in Fig. 2,
Fig. 3 shows a surface repairing step of the repair /
4 shows an anchor installation step,
5A and 5B show the stiffener mounting step,
6A to 6C show steps of installing a finishing material, FIG. 6B is a cross-sectional view taken along line CC of FIG. 6A,
Figs. 7A and 7B show the mortar filling step, Fig. 7B is a sectional view taken along line EE of Fig. 7A,
8 is a perspective view of a concrete structure in which a profile is laterally reinforced and reinforced as a finishing material by a conventional technique,
9 is a perspective view of a concrete structure showing a state where a reinforcing material and a clip are installed according to a second embodiment of the present invention,
10 is a perspective view of a concrete structure in which a profile is installed longitudinally with a partial enlargement of a combined profile using a clip according to the present invention,
11 is a cross-sectional view of a concrete structure that is partially repaired and reinforced at both the ceiling and the floor with the partial enlargement of the combined profile using the clip according to the present invention,
12 is a perspective view of a clip used in the present invention,
13 is a perspective view showing a clip in a deployed state before tightening to a profile,
14 is a view showing a state in which the clip is inserted into the stiffener so as to be movable,
15 is a view showing a state in which a profile is engaged by a coupling device,
16 is a view showing a state where a profile is joined in a curved concrete structure according to the present invention,
17 is a view showing a state in which a profile and another profile are connected in the longitudinal direction.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[First Embodiment]

1 is a perspective view showing a concrete structure in which a ceiling is repaired and reinforced according to a first embodiment of the present invention. As shown in FIG. 1, the method according to the first embodiment uses the ceiling 5c of the concrete structure 5 as the surface to be repaired / reinforced. The repair and reinforcement structure constructed by the method according to the first embodiment includes an anchor 10 installed on a ceiling of a concrete structure 5 (hereinafter, referred to as a first object surface) 5c, a first object surface 5c A profile 40 for providing a mortar filled space (hereinafter referred to as a first space) (see reference numeral S1 in FIGS. 6A to 6C) between the first space S1 and the reinforcing member 20 provided in the first space S1, And a mortar layer 70 filled in the first space S1.

FIG. 2 is a process chart showing the repair and reinforcement method of the present invention, and FIGS. 3 to 7 are views showing each step of the repair and reinforcement method shown in FIG. The repairing and reinforcing method of the concrete structure ceiling according to the first embodiment proceeds as follows.

1. Surfaces to be repaired / reinforced Surface clearance (see FIG. 3)

A section of the ceiling 5c of the concrete structure 5 that requires repair or reinforcement is selected and used as the first object surface 5c. Accordingly, the first object surface 5c may be the entire ceiling 5c of the concrete structure 5 or may be a part thereof.

Next, the foreign substance on the first object surface 5c is cleanly removed by a grinder, a brush, or the like. When there is a deteriorated portion on the first object surface 5c, the deteriorated portion is removed by a chipping operation until good concrete appears. In addition, if necessary, rust prevention work may be performed. Finally, the first object surface 5c is cleaned by removing dust on the first object surface 5c by using an air gun or the like.

2. Anchor (10) Installation phase (see FIG. 4)

4 is a front sectional view of the concrete structure in which the anchor 10 is installed, and the detailed structure of the anchor 10 has been described in detail in the above-mentioned patent of the present applicant and will not be described here.

An anchor 10 made of stainless steel or brass is provided on the first object surface 5c which is arranged. At this time, preferably at least two are arranged per 1 m 2, and are installed at uniform intervals.

3. Stiffener (20) installation phase (see Figure 5)

5A is a front cross-sectional view of a concrete structure in which a mounting device 30 is installed to install a stiffener 20 and FIG. 5B is a front view of a concrete structure in which a stiffener 20 is installed in the mounting device 30 . The fastening state of the mounting device and the stiffener connected thereto is not described here because it is described in detail in the patent of the present applicant.

In this step, a reinforcing bar (preferably a deformed reinforcing bar) is provided as a reinforcing material 20 below the anchor 10 installed in the step of installing the anchor 10. The reinforcing bar 20 serving as the reinforcing bar 20 has reinforcing bars 22, And an output power (24).

The main spindle 22 is installed in the lateral direction of the concrete structure 5 and is provided with a plurality of spaced apart (preferably equidistantly spaced) spaced apart from each other along the longitudinal direction of the concrete structure 5. The main root 22 is curved and has a higher arcuate structure than the left and right ends (both ends). The mounting device 30 is used in the vicinity of such a main shaft 22.

Such a mounting device 30 is installed at regular intervals along the longitudinal direction of the concrete structure 5 while facing each other on the right and left side walls 5s of the concrete structure 5. [ Of course, the spacing in which the mounting devices 30 are arranged along the longitudinal direction of the concrete structure 5 is the same as the spacing of the main roots 22.

The expansion roots 24 are arranged on the upper side of the main body 22 in the longitudinal direction of the concrete structure 5 and are provided at a predetermined distance (preferably, at the same interval) along the lateral direction of the concrete structure 5 And are spaced apart from each other. The exhausting roots 24 that are arranged in this manner intersect the main roots 22 and form a lattice structure together with the main roots 22 and are bound to the main roots 22 by the binding wires in this state.

Here, it is explained that the step of installing the reinforcement 20 is performed after the step of installing the anchor 10, but these two steps may be performed in parallel.

4. The profiles 40, the installation phase (see Fig. 6a-Fig. 6c)

6A is a front sectional view of a concrete structure in which a profile 40 as a finishing material is installed on reinforcing materials 22 and 24, FIG. 6B is a sectional view taken along the line CC of FIG. 6A, and FIG. .

In the step of installing the profile 40, a profile 40 serving as a mold is provided below the reinforcing steel reinforcement 22, 24 laid out in a lattice shape, and the profile 40 is provided between the profile 40 and the first object surface 5c The first space S1 is provided.

The profile 40 is made of a hard vinyl chloride resin. The profile 40 is installed along the longitudinal direction of the concrete structure 5, that is, in the longitudinal direction by the coupling device 80 as shown in FIG. 15, but has a left-right width similar to that of the concrete structure 5, The center is formed in a higher arch shape than the left and right. The coupling device 80 is described in detail as "pipe device" in the patent application No. 10-1097381 of the present applicant. Such a profile 40 is provided with a convex-concave structure on the inner side facing the first object surface 5c. The concave yaw (concave) portion 42 and the convex convex portion 44 of the concave- (The longitudinal direction of the concrete structure). At this time, the convex portion 44 has a T-shaped cross section. 10 and 17, it is preferred that the length of the profile 40 is set to about 30 to 80 m when the profile 40 is installed as a finishing material. At this time, the profile 40 is formed by the connecting member 90 And is connected by inserting the end portion into the groove 91 of the connecting member 90. When the profiles are connected to each other by the connecting member 90, the mortar 70 and the profile 40 are integrated with each other to prevent the profile 40 from falling off.

The profile 40 includes a reinforcing steel 46 that is coupled to the concave and convex structure, the reinforcing steel 46 having a W-shaped cross section, the middle portion covering the convex portion 44, (Unintentional disengagement is prevented by elasticity) when it is inserted (inserted) into the recessed portion 42 adjacent to the convex portion 44, thereby structurally reinforcing the profile 40.

6B, a plurality of hanger 50 are used to install the profile 40. The hanger 50 hangs from the main shaft 22 and the main shaft 24 of the stiffener 20 . The hanger (50) is preferably connected at its upper end to an output rope (24). A hanger hook 52 is provided at the lower end of the hanger 50. The hanger hook 52 is engaged with the recess 42 of the profile 40 and is engaged.

16, a plurality of connecting members 90 are radially provided at bent portions in order to install the profiles 40 in the bent portions of the concrete structure 5, and the connecting members 90 The profile 40 is cut to fit the groove 91 of the connecting member 90 at a predetermined position. Although two connecting members 90 are used in this embodiment, the number and the shape of the profile are appropriately determined according to the bent state.

Conventionally, when the profile 40 in the curved concrete structure 5 is appropriately cut, it is very difficult to cut and process the finishing material along the shape of the curved line, ) Has to be used separately as a curved line, so the workability is poor and the time required for installing the finishing material is long. Therefore, in the present invention, the standardized profile 40 can be used in the curved concrete structure 5.

As shown in FIG. 16, in the present invention, the curve 40 is divided into straight lines by equally dividing the curved portion of the curved concrete structure 5, and the curved portion is simply cut along the outer arc and the inner arc of the curved portion , The profile 40 in the curved concrete structure 5 can be easily and conveniently constructed by inserting the end of the cut profile 40 into the groove 91 of the I-shaped connecting member 90 . Therefore, the right end of the first profile 40a and the left end of the third profile 40c are inserted into both grooves 91 of the I-shaped connecting member 90a, and the left end of the second profile 40b The right end of the third profile 40c is also inserted into both grooves 91 of the I-shaped connecting member 90b.

When the setting of the profile 40 is completed, a sealing material 60 is injected between the profile 40 and the left and right side walls 5s of the concrete structure 5 to fill the gap (refer to FIG. 11). The space (first space) between the first object surface 5c and the profile 40 is also shielded by the sealing material 60 (not shown) before and after the opening. At this time, as the sealing material 60, mortar is used. Although not shown, a mortar injection tube is embedded in a sealing portion.

5. Mortar filling step (see FIGS. 7A and 7B)

FIG. 7A is a front sectional view of a concrete structure showing a state in which mortar is filled, and FIG. 7B is a sectional view taken along line E-E of FIG. 7A.

The mortar is injected into the first space S1 between the first object surface 5c and the profile 40, that is, the first space S1 by using the mortar injection tube installed in the step of installing the profile 40, To fill the mortar. According to this, a mortar layer 70 having an arch structure is formed between the first object surface 5c and the profile 40.

In the repairing and reinforcing structure constructed by the method according to the first embodiment, the mortar layer 70 having the arch structure disperses the load from the upper portion to the left and right side walls 5s of the concrete structure 5, To provide improved structural stability. At this time, the structure in which the arch curvature and the center of curvature of the mortar layer 70 are the same as the main peak 22 and the profile 40 ensures the uniformity of stress transmission.

The anchor 10 enhances the adhesion between the concrete structure 5 and the mortar layer 70 to facilitate the integration between the two. The lattice-shaped main roots 22 and the reinforcing rods 24 reinforce the mortar layer 70 and prevent the deformation of the profile 40 due to the mortar injection pressure during the injection of the mortar into the first space S1. The profile 40 is firmly coupled to the mortar layer 70 because the mortar injected during the mortar injection into the first space S1 is filled in the recess 42. [ Since the profile 40 corresponds to the surface in the repair and reinforcement structure, it protects the repairing and reinforcing structure of the mortar layer 70 and the like from the external harmful environment (gas or various pollution sources).

[Second Embodiment]

The repairing and reinforcing method of the floor of the concrete structure according to the second embodiment is carried out as follows

1. Surfaces to be repaired / reinforced

A section of the bottom 5b of the concrete structure 5 that requires repair or reinforcement is selected and used as the second object surface 5b. Accordingly, the second object surface 5b may be the entire bottom surface of the concrete structure 5 or may be a part thereof. A cleaning operation is performed in the same manner as the above-described cleaning operation of the first object surface 5c.

2. Installation steps of anchor (10)

In FIG. 10, an anchor 10 is installed on the bottom of the concrete structure 5. The process of installing the anchor 10 can be carried out in the same manner as in the first embodiment.

3. Steps for installing the floor stiffener (31)

9, the floor reinforcements 31 are installed at regular intervals along the longitudinal direction of the concrete structure 5 without the need for the mounting apparatus 30 or the ceiling stiffener 20 as in the first embodiment, (31) is fixed to the installed anchor (10). At this time, the bottom reinforcement 31 is inserted with a clip 32 with a hook 34 to prevent the profile 40 from being lifted from the mortar. 14, the clip 32 is inserted into the bottom stiffener 31 so as to be freely movable left and right, and is easily fastened to the concave portion 42 of the profile 40. As shown in Fig.

4. Profile (40) Installation Steps

10 shows a state in which the profile 40 as the finishing material is installed by the hook 34 inserted into the bottom stiffener 31. Fig. The hook 34 of the clip 32 inserted into the bottom stiffener 31 as shown in Figure 14 is inserted into the recess 40 between the profile 40 and another adjacent profile 40 42 so that a second space S2 is provided between the profile 40 and the second object surface 5b.

12 to 14, the clip 32 is made of a flexible plastic material and is composed of a body 33 and a hook 34. The body 33 is cylindrical and has an upper portion cut in the longitudinal direction And hooks 34 are attached to both sides of the incised portion.

The profile 40 is provided to extend in the longitudinal direction along the longitudinal direction of the concrete structure 5 by the coupling device 80 as shown in Fig. 15, and the inside of the profile facing the second object surface 5b Structures 42 and 44 are provided.

The process of installing the other profile 40 and the process of installing the profile 40 at the curved portion are performed in the same manner as in the first embodiment, and the middle is flat and the left and right sides are U-shaped bent to the upper side.

When the setting of the profile 40 is completed, a sealing material 60 is injected between the profile 40 and the left and right side walls 5s of the concrete structure 5 to fill the gap (refer to FIGS. 10 and 11). The space (second space) between the second object surface 5b and the profile 40 is also shielded by the sealing material 60 before and after the opening. At this time, as the sealing material 60, mortar is used. Although not shown, a mortar injection tube is embedded in a sealing portion.

5. Mortar filling step

10 and 11 illustrate a state in which the mortar is filled in the second space S2 at the bottom of the concrete structure 5. FIG.

The mortar is filled between the second object surface 5b and the profile 40, that is, the second space S2, by using a mortar injection pipe (not shown) installed in the step of installing the profile 40. [

Conventionally, when repairing and reinforcing the bottom (second target surface) of the concrete structure 5, the profile is filled from the mortar until the mortar is cured after the concave and convex portions 42 and 44 of the profile 40 are filled with mortar In the second embodiment of the present invention, the hook 34 of the clip 32 inserted in the bottom stiffener 31 is inserted into the recess of the profile 40, Since the profile (40) is caught, it is not necessary to press it for two or three days with the support material, which is advantageous in that the construction can be simplified and the air can be shortened.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

5: Concrete structure 5b: Second object surface (bottom)
5c: first object surface (ceiling) 5s: side wall of the concrete structure
10: anchor 20: ceiling stiffener
22: main muscle 24:
30: mounting device 31: bottom stiffener
32: Clip 33: Body
34: Clip Hook
40 (40a, 40b, 40c): Finishing material (profile)
42: recess 44:
46: reinforcement steel material 50: hanger
52: Hanger hook
60: sealing material 70: mortar layer
S1, S2: Mortar filling space 80: Coupling device
90 (90a, 90b): connecting member 91: groove

Claims (5)

delete A step of arranging the bottom 5b of the concrete structure 5 which is the surface to be repaired and reinforced for repairing and reinforcing the concrete structure 5 and arranging a plurality of anchors 10 on the bottomed floor 5b Installing the bottom reinforcement 31 in the anchor 10 at regular intervals along the longitudinal direction of the concrete structure 5, installing the profile 40, installing the profile 40 and the concrete structure 5, And the second space S2 between the second object surface 5b and the profile 40 by means of a mortar injection tube and a step of closing the second space S2 between the left and right side walls 5s A method of repairing and reinforcing a concrete structure (5) using a profile (40) comprising filling mortars;
The hook 34 of the clip 32 inserted in the bottom stiffener 31 in the step of installing the profile 40 is fitted in the recess 42 between the profile 40 and the adjacent profile 40, The profile 40 is longitudinally extended along the longitudinal direction of the concrete structure 5 by the coupling device 80 such that the concave and convex structures 42 and 44 of the first and second projections 40 and 40 face the bottom 5b, Wherein the concrete structure (5) is made by using the profile (40).
3. The method of claim 2,
The clip 32 is made of a soft plastic material and is composed of a body 33 and a hook 34. The body 33 is cylindrical and has an upper portion thereof cut and formed to be folded or opened along the longitudinal direction, , And a hook (34) is attached to each of the hooks (34) on both sides of the portion (40).
3. The method of claim 2,
The profile 40 is cut into a predetermined size in the step of installing the profile 40 in the longitudinal direction so that both ends of the profiles 40 are inserted into the groove 91 of the connecting member 90 , A method of repairing and reinforcing a concrete structure (5) using a profile (40).
5. The method of claim 4,
In the curved concrete structure 5, the curved portions are equally divided into curved lines and the straight profiles 40a, 40b and 40c are cut along the outer arc and the inner arc of the curved portion, Shaped connecting members 90a and 90b and the two connecting members 90a and 90b are provided radially and then the right end of the first profile 40a and the left end of the third profile 40c Shaped connecting member 90b is inserted into both grooves 91 of the I-shaped connecting member 90a and the left end of the second profile 40b and the right end of the third profile 40c are inserted into both grooves 91 of the I- Is inserted into the groove (91). The method of repairing and reinforcing the concrete structure (5) using the profile (40).
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KR101742788B1 (en) * 2016-11-28 2017-06-01 김효중 Repairing and reinforcing structure of concrete apparatus, and the method for installing the repairing and reinforcing structure
WO2019242099A1 (en) * 2018-06-21 2019-12-26 南京联众工程技术有限公司 Corner connection structure for steel-structure pipe rack
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KR101742788B1 (en) * 2016-11-28 2017-06-01 김효중 Repairing and reinforcing structure of concrete apparatus, and the method for installing the repairing and reinforcing structure
WO2019242099A1 (en) * 2018-06-21 2019-12-26 南京联众工程技术有限公司 Corner connection structure for steel-structure pipe rack
KR102092480B1 (en) * 2018-12-05 2020-03-23 주식회사 씨엠산업 Structure reinforcing method using round panel
US11434618B2 (en) * 2020-10-28 2022-09-06 TC Hafford Basement Systems Method for forming a foundation wall
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