WO2019093541A1 - Procédé de renforcement de colonne mettant en œuvre un tirant en acier en forme de v - Google Patents

Procédé de renforcement de colonne mettant en œuvre un tirant en acier en forme de v Download PDF

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Publication number
WO2019093541A1
WO2019093541A1 PCT/KR2017/012662 KR2017012662W WO2019093541A1 WO 2019093541 A1 WO2019093541 A1 WO 2019093541A1 KR 2017012662 W KR2017012662 W KR 2017012662W WO 2019093541 A1 WO2019093541 A1 WO 2019093541A1
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WIPO (PCT)
Prior art keywords
column
insertion hole
cured body
reinforcing
concrete
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Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2017/012662
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English (en)
Korean (ko)
Inventor
심재일
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4m Co Ltd
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4m Co Ltd
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Filing date
Publication date
Application filed by 4m Co Ltd filed Critical 4m Co Ltd
Publication of WO2019093541A1 publication Critical patent/WO2019093541A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance, i.e. of essentially one-dimensional [1D] or two-dimensional [2D] extent
    • E04C5/04—Mats
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional [3D] extent, e.g. lattice girders
    • 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

Definitions

  • a V-type reinforcing bar is inserted into an insert hole formed in an existing column to fix the concrete, thereby effectively reinforcing the column, and the cured body and the V- And a method of reinforcing a column using a V-type reinforcing bar without the need of installing a separate shear connection member.
  • an outer circumferential surface of an existing column formed of concrete is wrapped and fixed by a plurality of steel plates using a fastening member or the like.
  • the steel sheet reinforcement method is vulnerable to fire or corrosion, the steel sheet needs to be separately refracted and rust-proofed, and a separate structure is required to secure the integrity between the steel sheet and the concrete.
  • the concrete method is to reinforce the column by increasing the cross-sectional area of the column by placing the reinforcing bars on the outside of the existing columns and installing the formwork.
  • the method for jacketing the concrete is advantageous in that it is unnecessary to separate fireproofing and rustproofing, and is advantageous in securing integrity with existing concrete columns.
  • the present invention has been applied to a case in which a column is reinforced without limitation of the column section size or the column section, Thereby providing a reinforcement method.
  • a method of reinforcing a reinforced concrete reinforced concrete column having a main reinforcing bar and a reinforcing bar surrounding the main reinforcing steel comprising the steps of: (a) removing a covered concrete of an existing column ; (b) forming a plurality of insertion holes by drilling deep core concrete inside the main pipe so as to have a predetermined width and depth; (c) installing a V-shaped band reinforcing bar having a pair of legs bent into a V-shape so that an inner side of the bent portion is in contact with the outer side of the main muscle and a pair of legs are inserted into the insertion hole; And (d) restoring a section by placing a cured body on the outer surface of the existing column from which the coated concrete has been removed;
  • the present invention provides a column reinforcing method using a V-type reinforcing bar.
  • a column reinforcing method using a V-type reinforcing bar wherein the upper surface of the insertion hole is inclined so that the height increases toward the outside.
  • a column reinforcing method using a V-type reinforcing bar wherein the cured body is a shotcrete sprayed on a construction surface.
  • the cured body in the step (d), is composed of a first cured body to be filled in the insertion hole and a second cured body to form a coating, And then the second cured body is poured after being cured.
  • the present invention also provides a column reinforcing method using a V-type reinforcing bar.
  • a column reinforcing method using a V-type reinforcing bar wherein a wire mesh is further provided on an outer surface of an existing column from which the covering concrete is removed after the step (c) do.
  • a column reinforcing method using a V-type reinforcing bar wherein the insertion hole is formed to communicate with a laterally adjacent insertion hole.
  • the V-type reinforcing bar coupled to each main body is composed of a V-shaped reinforcing bar adjacent to the transverse direction and a single member whose ends are connected to each other by the connecting portion.
  • a method of reinforcing a column using a bar reinforcement is provided.
  • the present invention has the following effects.
  • the V-type steel bar which is inserted into the insertion hole formed in the concrete part of the existing column, is fixed in the existing concrete to prevent the buckling of the existing main course as well as the newly added main bar, The seismic performance of the column can be greatly increased. As a result, existing columns can be effectively collapsed.
  • the cured body filled up to the inside of the insertion hole and the V-shaped reinforcing bar inserted through the insertion hole and the concrete covering portion serve as shear connectors, it is possible to provide a column reinforcing method in which a separate shear connector is not required. Accordingly, the working process is simple when the column is reinforced, so that the workability can be improved and the effect of shortening the air can be obtained.
  • FIG. 1 is a diagram showing a step-by-step process of a column reinforcing method using a V-type band reinforcing bar of the present invention.
  • Fig. 2 is a perspective view showing the coupling relationship of V-type band bars.
  • FIG 3 is a side cross-sectional view showing a joined state of the V-shaped band steel bar.
  • FIG. 4 is a plan sectional view showing a state in which additional main ropes are laid.
  • FIG. 5 is a side cross-sectional view of a column showing an insertion hole according to an embodiment
  • FIG. 6 is a side cross-sectional view of a column in which a cured body composed of first and second cured bodies is placed.
  • FIG. 7 is a plan sectional view of a column provided with a wire mesh
  • FIG. 8 is a view showing an embodiment in which the insertion holes communicate with each other and a reinforcing strip reinforcing bar;
  • FIG. 9 is a perspective view showing an embodiment of a V-type band reinforcing bar.
  • FIG. 10 is a plan sectional view showing the coupling relationship of the V-type band bar shown in FIG.
  • the present invention provides a method of reinforcing a pillar reinforced concrete structure having a main reinforcing bar and a reinforcing bar surrounding the main reinforcing steel, Removing the coated concrete of the existing column to expose the main beam; (b) forming a plurality of insertion holes by drilling deep core concrete inside the main pipe so as to have a predetermined width and depth; (c) installing a V-shaped band reinforcing bar having a pair of legs bent into a V-shape so that an inner side of the bent portion is in contact with the outer side of the main muscle and a pair of legs are inserted into the insertion hole; And (d) restoring a section by placing a cured body on the outer surface of the existing column from which the coated concrete has been removed; And a control unit.
  • FIG. 1 is a diagram showing a step-by-step process of a column reinforcing method using a V-type reinforcing bar according to the present invention.
  • FIG. 2 is a perspective view showing the coupling relationship of the V-type band steel bars
  • FIG. 3 is a side sectional view showing the joined state of the V-type band steel bars
  • FIG. 4 is a plan view showing a state in which additional main bars are laid.
  • a column reinforcing method using a V-type reinforcing bar includes a reinforcing concrete reinforced concrete column 1 having a main girder 11 and a girder 12 surrounding the main girder 11, (A) removing the covered concrete (13) of the existing column (1) so as to expose the outer major axis (11); (b) drilling deep core concrete (14) inside main beam (11) with a predetermined width and depth to form a plurality of insertion holes (141); (c) The V-shaped band bar 15 having a pair of legs 151 bent in a V-shape is in close contact with the outer side of the main bar 11, and the pair of legs 151 Inserting it into the insertion hole (141); And (d) restoring a section by placing a cured body 16 on the outer surface of the existing column 1 from which the covered concrete 13 has been removed; And a control unit.
  • step (a) the covered concrete 13 of the existing column 1 is removed to expose the external major axis 11 (FIG. 1 (a)).
  • the deep concrete 14 inside the main beam 11 is drilled on the basis of the main beam 11 exposed in the step (a).
  • the insertion hole 141 is formed at the position of the main bar 11.
  • the insertion hole 141 is a portion into which the cured body 16 forming the coating is filled in the portion into which the V-shaped band steel bar 15 is inserted.
  • a V-shaped band reinforcing bar 15 having a pair of legs 151 bent in a V-shape, the inside of the bent portion being in close contact with the outside of the main bar 11, Is inserted into the insertion hole 141 (Fig. 1 (c)).
  • the V-shaped band reinforcing bar 15 is coupled to the outside of the main bar 11 such that the leg portion 151 is inserted into the insertion hole 141 and the inside of the bent portion is brought into close contact with the outside of the main bar 11.
  • the V-type band reinforcing bar 15 is fixed in the existing concrete to prevent the existing main bar 11 from buckling. As shown in FIG. 4, when the newly added main rope 11 'is present, it is also closely attached to the newly added main rope 11' to prevent buckling of the additional main rope 11 '.
  • the V-type reinforcing bar 15 effectively restrains the inner concrete together with the reinforcing bars 12 to greatly increase the seismic performance of the column.
  • the height of the insertion hole 141 formed in step (b) is preferably slightly larger than the diameter of the V-shaped band bar 15 for smooth insertion of the V-shaped band bar 15.
  • the V-type band 15 can be fixed separately to the main bar 11 or perpendicular to the main bar 11 No separate fasteners are required to maintain.
  • V-type band reinforcing bar 15 is bound to the main rope 1 by a binding line so as to prevent only the deviation.
  • the width of the insertion hole 141 is formed to be slightly narrower than the distance between the pair of legs 151 of the V-shaped band bar 15. In this case, when the pair of leg portions 151 of the V-shaped band reinforcing bars 15 are inserted into the insertion holes 141 in a slightly tapered state, the leg portions 151 that have been pulled out from the insertion holes 141 are stretched And is fixed to both sides of the insertion hole 141. Therefore, it is possible to fix the V-type band 15 without binding wires.
  • the cured body 16 can be placed inside the mold after the mold is installed outside the column.
  • the cured body 16 may be filled up to the inside of the insertion hole 141.
  • the cured body 16 may be composed of non-shrinkage high strength mortar having high fluidity so that the cured body 16 can be filled tightly up to the inside of the insertion hole 141.
  • V-type reinforcing bar 15 is inserted into the insertion hole 141 but also the cured body 16 forming the covering is filled, the integration between the cured body 16 and the existing concrete is increased.
  • the present invention can provide a column reinforcing method in which the existing column 1 is effectively transversely strengthened but a separate shear connection member is not required, for example, when the column section size is limited or when the column is reinforced without increasing the column section .
  • the main ropes 11 ' can be further arranged.
  • the vertical grooves 142 for installing the additional main ropes 11 ' may be formed in advance in the step (a) when the covered concrete 13 of the existing column 1 is removed.
  • FIG. 5 is a side cross-sectional view of a column showing an insertion hole according to an embodiment.
  • the upper surface of the insertion hole 141 may be inclined such that the height increases toward the outside.
  • the air can be easily released from the insertion hole 141 without being trapped when the cured body 16 is placed. Accordingly, the hardened body 16 can be filled tightly in the insertion hole 141.
  • the lower surface of the insertion hole 141 is preferably configured to have a horizontal plane so that the V-type band reinforcing bars 15 are stably mounted.
  • FIG. 6 is a side sectional view of a column in which a cured body composed of the first and second cured bodies is placed.
  • the cured body 16 placed on the outer surface of the existing column 1 from which the covered concrete 13 has been removed may be composed of a shotcrete sprayed on the construction surface.
  • the cured body 16 can be placed after forming a mold on the outside of the existing column 1.
  • a fiber reinforcing material such as a steel fiber can be mixed into the cured body 16 for reinforcing the tensile strength of the cured body 16.
  • the finished surface is rough. Therefore, after the shotcrete is applied, a separate finishing treatment is required on the outside.
  • the cured body 16 is composed of a first cured body 161 filled in the insertion hole 141 and a second cured body 162 forming a coating
  • the first curing body 161 is filled in the insertion hole 141, and then the second curing body 162 is placed.
  • the hardened body 16 may not be properly filled into the insertion hole 141 when shotcrete is applied.
  • the first cured body 161 is first filled into the insertion hole 141, and then the second cured body 162 is placed outside after the curing is completed, thereby preventing a gap from being formed in the insertion hole 141 .
  • the first cured body 161 may use the same material as the second cured body 162, but a filler such as epoxy may be used in consideration of ease of filling and strength of the cured body.
  • FIG. 7 is a plan sectional view of a column provided with a wire mesh.
  • a wire mesh 17 may be further provided on the outer surface of the existing column 1 from which the coated concrete 13 has been removed.
  • the wire mesh 17 may be installed to reinforce the tensile strength of the cured product 16 to be shotcrete and to increase the adhesion of the cured product 16 to the cured product 16.
  • FIG. 8 is a view showing an embodiment in which the insertion holes communicate with each other and reinforcing strip reinforcing bars.
  • the insertion hole 141 may be formed to communicate with the insertion hole 141 which is adjacent to the transverse direction.
  • the insertion hole 141 is formed so that the cross section of the existing column 1 is small or the horizontal interval between the V-shaped band bars 15 is narrow.
  • FIG. 8 (a) shows an embodiment in which the insertion hole 141 is communicated.
  • FIG. 8 (b) is a cross-sectional view taken along line A-A 'in FIG. 8 (a), and FIG. 8 (c) shows an embodiment of a reinforcing strip reinforcing bar 12'.
  • the V-type reinforcing bars 15 may be joined to the existing reinforcing bars 12. However, if the spacing between the existing strip bars 12 is wide, a reinforcing strip bar 12 'is added between the existing bar bars 12 and a V-type bar bar 15 is joined to the reinforcing bar bar 12' (Fig. 8 (a)).
  • the reinforcing strip reinforcement 12 ' is formed in a U-shape as shown in FIG. 8 (c), and a pair of the reinforcement strip reinforcement 12' can be engaged with both sides as shown in FIG. 8 (b).
  • the reinforcement strip reinforcement 12 ' is preferably configured to be closed to restrain the inner concrete. 8 (c), the end portion of the reinforcing strip reinforcing bar 12 'is bent at 45 degrees to be embedded in the hardened body 16, whereby the hardened body 16 can be fixed.
  • Fig. 9 is a perspective view showing an embodiment of a V-type band reinforcing bar
  • Fig. 10 is a flat cross-sectional view showing a coupling relation of the V-type band reinforcing bar shown in Fig.
  • V-shaped reinforcing bars 15 coupled to the respective main ropes 11 are supported by the transversely adjacent V-shaped reinforcing bars 15 and the connecting portions 152, May be constituted by one member connected to each other.
  • the plurality of V-type strip reinforcing bars 15 can be manufactured by bending one reinforcing bar and integrating them.
  • V-type reinforcing bars 15 installed on one side of the existing column are integrally connected, the effect of constraining concrete by the V-type reinforcing bar 15 can be increased.
  • the length of the leg portion 151 can be shortened. In this case, the depth of the insertion hole 141 can be minimized.
  • V-shaped reinforcing bars 15 Since the plurality of V-shaped reinforcing bars 15 are connected to each other and can be installed at a time, only a part of the V-shaped reinforcing bars 15 are bound to the main ropes 11 by binding lines, .
  • the V-type reinforcing bar serves as a shear connection member, so that it is not necessary to provide a separate shear connection member.
  • the work process is simplified and the air can be shortened.
  • the V-type steel reinforcing bars are inserted into the insertion holes formed in the existing column concrete portion, and thus, the existing columns can be effectively transversely reinforced without increasing the column cross section or size.

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

Abstract

La présente invention concerne un procédé de renforcement de colonne mettant en œuvre un tirant en acier en forme de V, le procédé de renforcement de colonne permettant l'insertion d'un tirant en acier en forme de V dans des trous d'insertion formés dans une colonne classique et sa fixation dans du béton, de manière à confiner le béton, ce qui permet de renforcer efficacement et transversalement la colonne. Et un corps durci et le tirant en acier en forme de V inséré dans les trous d'insertion pour servir de raccord de cisaillement, éliminant ainsi la nécessité de poser un raccord de cisaillement distinct.
PCT/KR2017/012662 2017-11-08 2017-11-09 Procédé de renforcement de colonne mettant en œuvre un tirant en acier en forme de v Ceased WO2019093541A1 (fr)

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KR1020170148041A KR102004420B1 (ko) 2017-11-08 2017-11-08 V형 띠철근을 이용한 기둥 보강 방법
KR10-2017-0148041 2017-11-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10975572B2 (en) * 2019-03-14 2021-04-13 Seong Wook Park V-shaped tie hoop assembly
US10988930B2 (en) * 2017-08-28 2021-04-27 Seong-Wook PARK V-shaped tie reinforcement integrally provided with one-touch fixing device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114941400B (zh) * 2022-04-22 2025-02-11 上海市城市建设设计研究总院（集团）有限公司 梳齿式立柱箍筋结构及梳齿提供的抗剪能力计算方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0123476Y1 (ko) * 1995-03-21 1998-10-15 김무수 기존 건축물의 보강장치
KR101454309B1 (ko) * 2012-10-31 2014-10-23 주식회사 비엔피 비내력 내벽 경량벽체
JP2015010345A (ja) * 2013-06-27 2015-01-19 株式会社長谷工コーポレーション 既存柱の増し打ち補強構造
KR101677858B1 (ko) * 2015-08-21 2016-11-21 인천대학교 산학협력단 충전형 링 앵커 소켓을 이용한 기둥 단면증설 방법
KR101672924B1 (ko) * 2016-01-19 2016-11-25 (주)한국리페어엔지니어링 고강도 강판을 이용한 내화용 보강 판넬 및 이의 시공방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5594889B2 (ja) * 2010-11-08 2014-09-24 株式会社ケー・エフ・シー コンクリート躯体の耐震補強構造及び耐震補強工法
KR101418689B1 (ko) * 2013-11-28 2014-07-10 경기대학교 산학협력단 내진 설계를 위한 시공성이 개선된 철근콘크리트 기둥의 띠철근 배근 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0123476Y1 (ko) * 1995-03-21 1998-10-15 김무수 기존 건축물의 보강장치
KR101454309B1 (ko) * 2012-10-31 2014-10-23 주식회사 비엔피 비내력 내벽 경량벽체
JP2015010345A (ja) * 2013-06-27 2015-01-19 株式会社長谷工コーポレーション 既存柱の増し打ち補強構造
KR101677858B1 (ko) * 2015-08-21 2016-11-21 인천대학교 산학협력단 충전형 링 앵커 소켓을 이용한 기둥 단면증설 방법
KR101672924B1 (ko) * 2016-01-19 2016-11-25 (주)한국리페어엔지니어링 고강도 강판을 이용한 내화용 보강 판넬 및 이의 시공방법

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10988930B2 (en) * 2017-08-28 2021-04-27 Seong-Wook PARK V-shaped tie reinforcement integrally provided with one-touch fixing device
US10975572B2 (en) * 2019-03-14 2021-04-13 Seong Wook Park V-shaped tie hoop assembly

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KR20190052391A (ko) 2019-05-16
KR102004420B1 (ko) 2019-07-26

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