KR101672961B1 - the structure of repairing reinforced concrete construction - Google Patents

the structure of repairing reinforced concrete construction Download PDF

Info

Publication number
KR101672961B1
KR101672961B1 KR1020150166916A KR20150166916A KR101672961B1 KR 101672961 B1 KR101672961 B1 KR 101672961B1 KR 1020150166916 A KR1020150166916 A KR 1020150166916A KR 20150166916 A KR20150166916 A KR 20150166916A KR 101672961 B1 KR101672961 B1 KR 101672961B1
Authority
KR
South Korea
Prior art keywords
clamping mechanism
coupled
concrete structure
reinforced concrete
mortar
Prior art date
Application number
KR1020150166916A
Other languages
Korean (ko)
Inventor
이준우
Original Assignee
건설표준시험원(주)
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 건설표준시험원(주) filed Critical 건설표준시험원(주)
Priority to KR1020150166916A priority Critical patent/KR101672961B1/en
Application granted granted Critical
Publication of KR101672961B1 publication Critical patent/KR101672961B1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
    • 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
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/06—Methods of, or installations for, laying sewer pipes
    • 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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/06—Methods of, or installations for, laying sewer pipes
    • E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a new reinforced concrete structure repair structure capable of improving the adhesion of mortar filled in the inner side surface of a chipping portion.
According to the reinforcing concrete structure repairing method and the reinforcing concrete structure repairing method according to the present invention, a clamping mechanism 10, one end of which is coupled to the reinforcing bar 2, and a chipping unit 1 constructed by chipping the structure, A supporting sheet 30 laminated on the outer surface of the filling layer 20 and coupled to the clamping mechanism 10 and a supporting sheet 30 coupled to the clamping mechanism 10, And a finishing layer 50 formed by applying mortar so as to cover the outside of the support sheet 30. The filling layer 20 is formed by using the support sheet 30, The supporting sheet 30 is covered with the finishing layer 50 so that the finished portion is apparently not exposed when the finishing layer 50 is cured The repaired area is easily exposed and unnecessary to the general public There is an advantage that it is possible to prevent informing of anxiety.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforced concrete structure,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a new reinforced concrete structure repair structure capable of improving the adhesion of mortar filled in the inner side surface of a chipping portion.

In general, reinforced concrete structures such as bridges, buildings or sewage boxes or joints are subject to damage due to deterioration, corrosion, external loads or impacts, and repair of damaged parts as necessary.

Meanwhile, as a method of repairing the damaged reinforced concrete structure, a cracker or the like is used to break the damaged portion of the structure so that the reinforcing bars of the reinforced concrete structure are exposed. After the chipping step, the concrete is chipped, A method of repairing structures by filling new mortar is mainly used.

However, when the mortar is simply filled in the chipping portion, the mortar is not firmly adhered to the inner surface of the chipping portion, so that the concrete structure often fails to be safely repaired.

Particularly, when repairing the ceiling surface of the reinforced concrete structure or the lower surface of the upper plate, the mortar filled in the chipped portion can not be attached to the inner surface of the chipped portion and falls off.

In order to solve such a problem, there has been used a method in which a mortar is filled in a chipping portion of the reinforced concrete structure, and then a mortar is supported on the inner side surface of the chipping portion by using a separate member. In this case, The reinforced concrete structure can be easily recognized that the reinforced concrete structure has been repaired, which may cause unnecessary anxiety to the user.

Therefore, there is a need for a new method to solve such a problem.

Patent No. 10-0741439, 10-1477954,

SUMMARY OF THE INVENTION It is an object of the present invention to provide a new reinforced concrete structure repair structure capable of improving the adhesion of mortar filled in the inner side surface of a chipping portion.

In order to accomplish the above object, the present invention provides a repair structure for a reinforced concrete structure for repairing a reinforced concrete structure by filling a mortar into a chipped portion (1) chipped to expose an inner reinforcing bar (2) A filling layer 20 formed by filling a mortar into a chipping portion 1 constructed by chipping a structure and a pressing portion 20 which is stacked on an outer surface of the filling layer 20, A fixing member 40 coupled to the clamping mechanism 10 to fix the supporting sheet 30 and a fixing member 40 to cover the outside of the supporting sheet 30, And a finishing layer (50) formed by applying mortar to the reinforcing concrete structure.

According to another aspect of the present invention, the clamping mechanism 10 includes a support block 11 and an opening 12a extending upward from the support block 11 and having one side inserted with the reinforcing bar 2 A hook member 12 formed on the upper surface of the support block 11 and a lower surface 12a of the reinforcing bar 2 which is rotatably coupled to the support block 11 and has a circumferential surface protruded above the support block 11, And a bolt shaft 14 extending downward from the circumferential surface of the fixed cam 13 and coupled to the support sheet 30, And the fixing member (40) uses a nut screwed to the bolt shaft (14).

According to another aspect of the present invention, there is provided a repair structure for a reinforced concrete structure, wherein the support sheet (30) is made of a nonwoven material formed to penetrate the upper and lower surfaces of a plurality of through holes (31).

According to another aspect of the present invention, there is provided a repair structure for a reinforced concrete structure, wherein a handle portion (11b) extending downward is formed on a lower surface of one side of the support block (11).

delete

According to the present invention, there is provided a repair structure for a reinforced concrete structure, comprising: a clamping mechanism (10) having one end coupled to the reinforcing bar (2); a filling layer (20) formed by filling a mortar in a chipping part (1) A supporting sheet 30 laminated on the outer surface of the filling layer 20 and coupled to the clamping mechanism 10 and a fixing member 30 coupled to the clamping mechanism 10 to fix the supporting sheet 30, And a finishing layer 50 formed by applying mortar so as to cover the outside of the support sheet 30. The filling layer 20 is formed on the chipping portion 1 by using the support sheet 30, The support sheet 30 is covered with the finishing layer 50 so that the finished part is hardly exposed when the finishing layer 50 is cured, Can be easily exposed to prevent unnecessary anxiety There is an advantage.

1 is a side sectional view showing a repair structure of a reinforced concrete structure according to the present invention,
FIG. 2 is a side view showing a clamping mechanism, a support sheet, and a fixing member of a repair structure for a reinforced concrete structure according to the present invention;
3 is a perspective view showing a clamping mechanism of a repair structure of a reinforced concrete structure according to the present invention,
4 is a side cross-sectional view of a clamping mechanism of a reinforced concrete structure repair structure according to the present invention,
5 is a reference view showing the operation of the clamping mechanism of the repair structure of a reinforced concrete structure according to the present invention,
6 to 9 are views for illustrating a method for repairing a reinforced concrete structure according to the present invention.
10 is a reference view showing a modified example of a clamping mechanism of a reinforced concrete structure repair structure according to the present invention.

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

1 to 9 illustrate a repair structure of a reinforced concrete structure and a method of repairing a reinforced concrete structure according to an embodiment of the present invention, which illustrates repairing a damaged portion generated on a lower side of a bridge upper plate 3.

At this time, on the lower side of the bridge upper plate 3 where the damage is caused, the chipping portion 1 chipped so that the inner reinforcing bars 2 are exposed is formed concave upward.

The reinforcing concrete structure repair structure according to the present invention includes a clamping mechanism 10 having one end coupled to the reinforcing bar 2, a filling layer 20 formed by filling mortar in the chipping portion 1, A supporting sheet 30 laminated on the outer surface of the filling layer 20 and coupled to the clamping mechanism 10 and a fixing member 40 coupled to the clamping mechanism 10 to fix the supporting sheet 30, And a finish layer (50) formed by applying mortar to cover the outside of the support sheet (30).

2 to 5, the clamping mechanism 10 includes a support block 11 and a support block 11 extending upward from the support block 11, A hook member 12 having an opening 12a into which the hook member 12 is inserted and a hook member 12 rotatably coupled to the support block 11 and having a circumferential surface protruded upward from the support block 11, A fixing cam 13 for pressing the lower surface of the reinforcing bar 2 to fix the reinforcing bar 2 so as not to move and a fixing cam 13 extending downward from the circumferential surface of the fixing cam 13, And is composed of a synthetic resin material having high strength.

At this time, the support block 11 is formed with a space portion 11a through which the fixed cam 13 and the bolt shaft 14 are inserted, and the fixed cam 13 penetrates the space portion 11a, And is rotatably coupled laterally by a hinge shaft 13a passing through both side surfaces of the support block 11 in a state of being inserted into the inside of the support block 11. [

5, when the bolt shaft 14 is rotated in the lateral direction, the fixed cam 13 is inserted into the space portion 11a, and the hook member (not shown) is inserted through the opening portion 12a The reinforcing bars 2 can be inserted into the inside of the reinforcing bars 12.

When the user hooks the hook member 12 to the reinforcing bar 2 and rotates the bolt shaft 14 downwardly as shown in FIG. 2, the fixing cam 13 is rotated, The clamping mechanism 10 can be fixed so as not to move on the reinforcing bars 2 by pressing the lower side of the reinforcing bars 2 upward to fix the reinforcing bars 2 tightly to the hooking member 12. [

The filling layer 20 is formed by filling mortar inside the chipping portion 1 so that only the lower end of the bolt shaft 14 of the clamping mechanism 10 is exposed. A sufficient amount of mortar is filled to completely infiltrate the reinforcing bars 2 and the upper part of the clamp, and then the lower side is appropriately flattened using a trowel or the like.

The support sheet 30 is made of a nonwoven material formed to penetrate the upper and lower surfaces of the through holes 31.

The fixing member 40 uses a nut screwed to the bolt shaft 14.

The finish layer 50 is formed by spreading mortar on the lower side of the support sheet 30 and spreading it so as to form a plane corresponding to the lower side of the upper plate 3 using a trowel or the like.

The supporting sheet 30 is made of a nonwoven material having through holes 31 so that the mortar is firmly attached to the lower side of the supporting sheet 30 and the charging Layer 20 may be integrally connected.

The construction method of the repair structure of the reinforced concrete structure will be described as follows.

6, the lower surface of the upper plate 3 is chipped to form a chipped portion 1 to expose the inner concrete. As shown in FIG. 7, The clamping mechanism 10 is fixed to the reinforcing bar 2 which is exposed to the inside of the frame 1.

At this time, the clamping mechanism 10 moves the hook member 12 to the periphery of the reinforcing bar 2 in a state where the bolt shaft 14 is laterally rotated, The bolt shaft 14 is fixed to the hook member 12 by the fixed cam 13 so that the entire clamping mechanism 10 is fixed so as not to move.

8, the plurality of clamping mechanisms 10 are appropriately coupled to the reinforcing bars 2 exposed to the inside of the chipping portion 1 at appropriate intervals, The filling layer 20 is formed.

At this time, the filling layer 20 is formed to a degree that the lower end of the bolt shaft 14 of the clamping mechanism 10 is exposed.

9, the supporting sheet 30 and the fixing member 40 are coupled to the clamping mechanism 10 so as to support the lower side of the filling layer 20, so that the mortar of the filling layer 20 Is supported by the support sheet (30) so as to be brought into close contact with the inner surface of the chipping portion (1).

At this time, the support sheet 30 is moved in the vertical direction so that the bolt shaft 14 passes through the through hole 31 or the bolt shaft 14 passes through the portion where the through hole 31 is not formed And is coupled to the lower end of the bolt shaft 14.

After the support sheet 30 is coupled to the bolt shaft 14 as described above and then the fixing member 40 is engaged with the bolt shaft 14 and the support sheet 30 is pressed upward, The mortar of the layer 20 can be pushed upward and pressed against the inner surface of the chipping portion 1.

1, the mortar is applied again to the outer side of the support sheet 30, that is, the lower side of the support sheet 30 to form the finish layer 50, .

At this time, the finish layer 50 is finished to have the same plane as the lower surface of the upper plate 3.

According to the repair structure of the reinforced concrete structure and the method of repairing the reinforced concrete structure, a clamping mechanism (10) in which one end is coupled to the reinforcing bar (2), and a charging A supporting sheet 30 laminated on the outer surface of the filling layer 20 and coupled to the clamping mechanism 10 and a supporting sheet 30 coupled to the clamping mechanism 10, And a finishing layer 50 formed by applying mortar so as to cover the outside of the supporting sheet 30 so that the filling layer 20 can be chipped by using the supporting sheet 30, The support sheet 30 is covered with the finishing layer 50 so that the finished part is hardly exposed when the finishing layer 50 is cured , The repaired area is easily exposed and unnecessary anxiety There is an advantage that can prevent tells.

The clamping mechanism 10 includes a support block 11 and a hook member 12 extending upward from the support block 11 and having an opening 12a through which the reinforcing bar 2 is inserted, And a circumferential surface of which is protruded upward from the support block 11 to press the lower surface of the reinforcing bar 2 coupled to the hook member 12, And a bolt shaft 14 extending downward from the circumferential surface of the fixed cam 13 and engaged with the support sheet 30, Since the member 40 uses a nut that is screwed to the bolt shaft 14, the clamping mechanism 10 can be easily coupled to the reinforcing bar 2, 30 and the bolt shaft 14 and then tightening the fixing member 40, the support sheet 30 is pressed so that the filling layer 20 of the Maltese There is an advantage that the lugs can be fixedly attached to the inner surface of the chipping section 1.

The supporting sheet 30 is formed of a nonwoven material formed so as to penetrate the upper and lower surfaces of the through holes 31. The mortar of the filling layer 20 can be smoothly dried, The filling layer 20 and the mortar of the finishing layer 50 are integrally connected to each other through the through holes 31 to improve the bonding strength between the filling layer 20 and the finishing layer 50.

In the present embodiment, the support block 11 is simply formed as a block having a flat lower surface. However, as shown in FIG. 10, the support block 11 may have a handle And the bolt shaft 14 is pivoted by the thumb to hook the detection and stop to the diaphragm knob when the user rotates the bolt shaft 14 downward, It is also possible to configure the mechanism 10 to be coupled to the reinforcing bar 2.

10. Clamping mechanism 20. Fill layer
30. Supporting sheet 40. Fixing member
50. Finishing layer

Claims (5)

1. A reinforced concrete structure repair structure for repairing a reinforced concrete structure by filling mortar into a chipped portion (1) chipped to expose an inner reinforcing bar (2)
A clamping mechanism (10) whose one end is coupled to the reinforcing bar (2)
A filling layer (20) formed by filling a mortar into a chipping portion (1) formed by chipping a structure,
A support sheet 30 laminated on the outer surface of the filling layer 20 and coupled to the clamping mechanism 10,
A fixing member 40 coupled to the clamping mechanism 10 to fix the support sheet 30,
And a finish layer (50) formed by applying mortar to cover the outside of the support sheet (30)
The clamping mechanism (10)
A hook member 12 extending upward from the support block 11 and provided at one side thereof with an opening 12a through which the reinforcing bar 2 is inserted; And a bolt shaft (14) extending downward from a surface of the support sheet (30) and coupled to the support sheet (30)
The fixing member 40 uses a nut screwed to the bolt shaft 14,
Wherein the support sheet (30) is made of a nonwoven fabric material having a plurality of through holes (31) penetrating the upper and lower surfaces thereof,
The clamping mechanism 10 includes a clamping mechanism 10 having a clamping cam 13 rotatably coupled to the support block 11 and a circumferential surface protruding upwardly from the support block 11, 2 are pressed to fix the reinforcing bars 2 so as not to move,
And a handle (11b) extending downward is formed on a lower surface of one side of the support block (11). delete delete delete delete
KR1020150166916A 2015-11-27 2015-11-27 the structure of repairing reinforced concrete construction KR101672961B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150166916A KR101672961B1 (en) 2015-11-27 2015-11-27 the structure of repairing reinforced concrete construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150166916A KR101672961B1 (en) 2015-11-27 2015-11-27 the structure of repairing reinforced concrete construction

Publications (1)

Publication Number Publication Date
KR101672961B1 true KR101672961B1 (en) 2016-11-16

Family

ID=57540540

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150166916A KR101672961B1 (en) 2015-11-27 2015-11-27 the structure of repairing reinforced concrete construction

Country Status (1)

Country Link
KR (1) KR101672961B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113322839A (en) * 2021-07-09 2021-08-31 中电建路桥集团有限公司 Anti-cracking structure of super-huge PK box composite beam bridge deck

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0828063A (en) * 1994-08-22 1996-01-30 Fujimi Kogyo Kk Structure of repairing crack on concrete external wall
KR200314981Y1 (en) * 2003-02-21 2003-06-02 주식회사 일원티이씨 Materials for repairing and reinforcing the surface of concrete structures
KR100741439B1 (en) 2005-03-23 2007-07-25 주식회사 리폼시스템 Stud-fixing sheet for concrete repair/enforcement and its method thereof
KR20100053846A (en) * 2008-11-13 2010-05-24 한국건설기술연구원 Structure filling apparatus and method for srtucture reinforcement under concrete surface
KR101477954B1 (en) 2014-04-30 2014-12-31 (주)영광산업개발 Repair concrete reinforcement
JP2015183507A (en) * 2014-03-26 2015-10-22 株式会社オクオ Brace upper part installing metal fitting

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0828063A (en) * 1994-08-22 1996-01-30 Fujimi Kogyo Kk Structure of repairing crack on concrete external wall
KR200314981Y1 (en) * 2003-02-21 2003-06-02 주식회사 일원티이씨 Materials for repairing and reinforcing the surface of concrete structures
KR100741439B1 (en) 2005-03-23 2007-07-25 주식회사 리폼시스템 Stud-fixing sheet for concrete repair/enforcement and its method thereof
KR20100053846A (en) * 2008-11-13 2010-05-24 한국건설기술연구원 Structure filling apparatus and method for srtucture reinforcement under concrete surface
JP2015183507A (en) * 2014-03-26 2015-10-22 株式会社オクオ Brace upper part installing metal fitting
KR101477954B1 (en) 2014-04-30 2014-12-31 (주)영광산업개발 Repair concrete reinforcement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113322839A (en) * 2021-07-09 2021-08-31 中电建路桥集团有限公司 Anti-cracking structure of super-huge PK box composite beam bridge deck

Similar Documents

Publication Publication Date Title
US20210123253A1 (en) Wall reinforcement system and method
KR102009514B1 (en) Apparatus for Repairing And Reinforcing Concrete Sturcure And Method for Repairing And Reinforcing Concrete Structures Using the Same
JP2012527551A (en) Tile alignment flattening device
KR101565467B1 (en) complex cast-in insert apparatus for concrete
WO2011150167A3 (en) Method of repairing concrete floors and system for same
KR101239383B1 (en) External heat insulating panel assembly and construction method for external heat insulation of building
US20160047132A1 (en) Structural arrangement and method for securing scaffolding to a building wall
KR101183120B1 (en) Paperboard sleeve for constructing hole, and the hole forming method using the same
KR101672961B1 (en) the structure of repairing reinforced concrete construction
US20160017594A1 (en) Anti-torsion anchor bolt
KR101404174B1 (en) Stripping Deck Plate
KR102110720B1 (en) reinforcing structure of concrete structure using FRP panel
DK178631B1 (en) Anchoring system for mounting on roofs and use of such an anchoring system
TWM556760U (en) Sealing structure for the bottom of a beam space between precast panels
JP2010270495A (en) Insert
KR20170044437A (en) Exterior panel anchorage for building, and outer wall and exterior panel install method with form combined with insulation
KR101546878B1 (en) Strengthening Apparatus for Reinforced Concrete Sturcure And Strengthening Method Using the Same
KR101652067B1 (en) Protection device for water leak of concrete water
KR102074792B1 (en) Pc slab panel which is improved joint performance
KR101818153B1 (en) Strengthening Apparatus for Reinforced Concrete Sturcure And Strengthening Method Using the Same
KR101672303B1 (en) Structures with reinforcements
KR101639267B1 (en) Korean house memebers connection method
KR20170056123A (en) Protection device for water leak of concrete water
KR100737995B1 (en) Insert for ceiling finish panel installation
KR200481690Y1 (en) Anchor bolt assembly

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant