KR100684396B1 - Concrete-confined shear connector - Google Patents

Concrete-confined shear connector Download PDF

Info

Publication number
KR100684396B1
KR100684396B1 KR1020060031295A KR20060031295A KR100684396B1 KR 100684396 B1 KR100684396 B1 KR 100684396B1 KR 1020060031295 A KR1020060031295 A KR 1020060031295A KR 20060031295 A KR20060031295 A KR 20060031295A KR 100684396 B1 KR100684396 B1 KR 100684396B1
Authority
KR
South Korea
Prior art keywords
concrete
steel
shear connector
shear
bent portion
Prior art date
Application number
KR1020060031295A
Other languages
Korean (ko)
Inventor
김성칠
유성근
김영호
정낙민
김종완
Original Assignee
경기대학교 산학협력단
(주)씨팁스이엔지
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 경기대학교 산학협력단, (주)씨팁스이엔지 filed Critical 경기대학교 산학협력단
Priority to KR1020060031295A priority Critical patent/KR100684396B1/en
Application granted granted Critical
Publication of KR100684396B1 publication Critical patent/KR100684396B1/en

Links

Images

Classifications

    • 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 extent, e.g. lattice girders
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • E04C3/294—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete of concrete combined with a girder-like structure extending laterally outside the element

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

A cover type shear connector is provided to prevent horizontal or vertical separation of steel and concrete more effectively by functioning as a tenon against horizontal and vertical shear forces and to prevent vertical splitting failure of concrete by distributing bearing stress of concrete widely. The cover type shear connector(10) contains a space(16) formed by bending a steel plate in a trapezoid shape to be filled with concrete, holes(12) formed on the bent part by forming cutting lines at regular intervals, tearing away from the central line of the bent part and turning to both sides to place concrete inward, and cog portions(14) formed on both sides of the hole to function as a cog for concrete not to be separated from steel.

Description

덮개형 전단연결재{Concrete-confined shear connector}Shroud Shear Connector {Concrete-confined shear connector}

도 1은 본 발명에 따른 전단연결재의 사시도.1 is a perspective view of a shear connector according to the present invention.

도 2는 H-형강 보와 콘크리트 슬래브 사이에 스터드 커넥터(headed stud shear connector)가 설치된 상태를 도시한 도면.2 shows a state in which a headed stud shear connector is installed between an H-beam and a concrete slab.

도 3은 종래 유공강판 커넥터(perforated shear connector)가 H-형강 보의 상부플랜지에 용접된 상태를 보인 사시도.Figure 3 is a perspective view showing a state in which a conventional perforated shear connector (perforated shear connector) is welded to the upper flange of the H-beam.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

10 : 전단연결재10: shear connector

12 : 구멍12: hole

14 : 촉부14: tactile

16 : 공간부16: space part

본 발명은 강콘크리트 합성구조나 복합구조에서 강재와 콘크리트 간의 합성작용을 증진시킬 목적으로 사용되는 전단연결재에 관한 것이다.The present invention relates to a shear connector used for the purpose of promoting the synthesis action between steel and concrete in a steel concrete composite structure or composite structure.

일반적으로 건축, 토목분야에서 강재와 콘크리트 사이의 합성효과를 기대할 목적으로 도 2에 도시된 스터드 커넥터(400)를 전단 연결재로 사용하여 이종재료인 H-형강 보(100)와 콘크리트 슬래브(200) 간의 면내 전단력을 전달하도록 하고 있다.Generally, in order to expect the composite effect between steel and concrete in the construction and civil engineering fields, using the stud connector 400 shown in FIG. 2 as a shear connector, H-beam steel 100 and concrete slab 200, which are different materials, are used. It is to transmit the in-plane shear force of the liver.

스터드 커넥터(400)는 직경에 비해 길이가 길게 제작되는 비교적 세장한 형상을 갖고 헤드와 몸체가 일체로 된 구성으로서 현장이나 공장에서 강재에 반자동 또는 손 용접 방식으로 사용되는 합성용 연결재이다.The stud connector 400 has a relatively elongated shape, which is made longer than the diameter, and has a head and a body in an integrated structure, and is a synthetic connection material used in steel or a semi-automatic or hand welding method in a field or a factory.

이러한 스터드가 콘크리트 속에 매입되었을 경우 구성 단면적이 작기 때문에 스터드 단면의 저항 능력이 작으며 수평력에 대한 저항 강성도 작다. When these studs are embedded in concrete, the cross-sectional area is small, so the resistance of the stud cross section is small and the resistance stiffness against horizontal force is also small.

또한, 헤드가 작아 상방향 인발력에 대해 재료 분리 방지 및 정착 효과 등의 측면에서 충분한 합성효과를 발휘하지 못하기 때문에 설계상 필요로 하는 전단력에 저항하기 위해서는 많은 양을 매우 조밀하게 설치하여야 한다.In addition, since the head is small and does not exhibit sufficient synthesizing effects in terms of preventing material separation and fixing effect with respect to the upward pull force, a large amount must be installed very densely in order to resist the shear force required by the design.

상기한 스터드 커넥터의 문제점을 감안하여 도 3에 도시된 바와 같이 강판(510)에 다수개의 구멍(520)을 천공한 유공강판(perforated plate)(500)이 강재와 콘크리트간의 연결재로 사용되기도 한다.In view of the above problems of the stud connector, as shown in FIG. 3, a perforated plate 500 having a plurality of holes 520 formed in the steel plate 510 may be used as a connection material between steel and concrete.

유공강판 연결재는 수평 전단력에 대해 강판 단부 수직면과 강판 표면의 부착면적에 의해 외력에 저항하는 방식이므로 하중 저항 능력이 우수한 장점이 있다.The perforated steel sheet connecting material has an excellent load resistance capability because it resists external force by the attachment area of the steel sheet end vertical plane and the steel plate surface with respect to the horizontal shear force.

그러나 최대 내력시 발생하는 변위가 상당히 미소량이므로 전체적 거동은 취성적인 거동특성을 나타내며, 유공강판의 단부 수직면과 인접한 콘크리트에는 매우 높은 국부 지압응력이 발생하게 된다.However, since the displacement generated at the maximum strength is very small, the overall behavior exhibits brittle behavior, and very high local acupressure is generated in the concrete adjacent to the vertical end surface of the perforated steel sheet.

따라서 유공강판과 나란하게 콘크리트에는 종방향이 균열이 발생하게 되며, 최종 파괴는 유공강판에 의한 콘크리트의 국부 지압성 파괴가 된다.Therefore, parallel to the perforated steel sheet, the longitudinal crack in the concrete is generated, the final failure is the local shiatsu fracture of the concrete by the perforated steel sheet.

즉, 유공강판 연결재는 유공강판 사이의 콘크리트에 주 균열(main crack)이 발생되고 유공강판에 접한 콘크리트가 지압파괴 되는 문제점이 있다.In other words, the perforated steel plate connecting material has a problem that the main crack (main crack) is generated in the concrete between the perforated steel sheet and the concrete in contact with the perforated steel sheet is broken under pressure.

본 발명은 상기한 스터드 커넥터와 유공강판 전단연결재의 문제점을 감안하여 안출된 것으로, 강재와 콘크리트간의 분리 방지 및 하중 전달 효과가 우수하며, 콘크리트 지압면적을 확대시킨 전단연결재를 제공하는 것을 목적으로 한다. The present invention has been devised in view of the above problems of the stud connector and the perforated steel sheet shear connecting material, the separation between the steel and concrete is excellent, and the load transfer effect is excellent, and an object of the present invention is to provide a shear connecting material with an enlarged concrete acupressure area. .

본 발명의 그 밖의 목적, 특정한 장점 및 신규한 특징들은 첨부된 도면들과 연관되어지는 이하의 상세한 설명과 바람직한 실시예로부터 더욱 분명해질 것이다.Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

이하 본 발명의 바람직한 실시예를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 전단연결재의 사시도로서, 다수개의 전단연결재가 소정 간격으로 H-형강 보의 상부 플랜지에 용접된 상태를 도시한 것이다.1 is a perspective view of a shear connector according to the present invention, in which a plurality of shear connectors are welded to the upper flange of the H-shaped steel beam at predetermined intervals.

도 1에 도시된 바와 같이 본 발명의 일실시예에 따른 전단연결재(10)는 강판을 사다리꼴 형상으로 절곡하여 접합될 강재와의 사이에 콘크리트가 채워지는 공간(16)이 형성되도록 하고 절곡 부분에는 콘크리트가 삽입되는 구멍(12)을 형성하되, 상기 절곡 부분에 소정 폭의 절단선을 일정 간격으로 내고 절곡 부분의 중앙선을 기준으로 찢고 양측 밖으로 꺽어 절곡 부분에 구멍(12)이 형성되도록 하고 구멍(12)의 양측으로 촉부(14)가 형성되도록 것을 특징으로 한다.As shown in FIG. 1, the shear connecting member 10 according to an embodiment of the present invention is formed by bending a steel plate into a trapezoidal shape so that a space 16 filled with concrete is formed between the steel materials to be joined and the bent portion. Forming a hole 12 is inserted into the concrete, the cutting line of a predetermined width in the bent portion is cut at regular intervals, and torn on both sides relative to the center line of the bent portion so as to form a hole 12 in the bent portion ( It is characterized in that the tip portion 14 is formed on both sides of the 12).

이때, 절곡 형상은 사다리꼴 형상에 한정되지 않으며 전단연결재가 접합되는 강재면과의 사이에 콘크리트가 채워지는 공간을 형성할 수 있게 절곡하면 되므로, 반원형, ∩자형 또는 ∧자형 등 다양한 형상으로 절곡할 수 있다.At this time, the bending shape is not limited to the trapezoidal shape, and the bending shape may be bent to form a space in which concrete is filled between the steel surface to which the shear connection material is joined. have.

이상과 같이 구성된 본 발명에 따른 절단연결재의 작용효과는 아래와 같다.Effects of the cutting connection member according to the present invention configured as described above are as follows.

종래 유공강판 전단연결재의 경우 얇은 두께를 갖는 상부면이 수평 외력에 대한 저항시 콘크리트에 균열을 종방향으로 유도시키고 이를 주균열로 하여 강콘크리트 합성의 전체 거동이 지배되는데, 본 발명에서와 같이 전단연결재를 소정의 형상으로 절곡함으로써 종방향의 주균열이 발생하는 것을 억제할 수 있게 된다.In the case of conventional steel sheet shear connector, the upper surface having a thin thickness induces the crack in the longitudinal direction of the concrete when resisting the horizontal external force and the main crack is governed the overall behavior of the steel concrete composite, the shear as in the present invention By bending the connecting material into a predetermined shape, it is possible to suppress the occurrence of major cracks in the longitudinal direction.

또한, 절곡 부분에 구멍을 형성할 때 상기 절곡 부분에 소정 폭의 절단선을 일정 간격으로 내고 절곡 부분의 중앙선을 기준으로 양측 밖으로 꺽어 절곡 부분에 상부가 개방된 구멍이 형성되게 함으로써 철근의 배근이 용이하며 구멍을 형성하기 위해 찢어 벌린 촉부(14)가 촉과 같은 기능을 가져 콘크리트가 강재와 분리되는 것을 보다 효과적으로 방지할 수 있게 된다.In addition, when forming a hole in the bent portion, the cutting line of a predetermined width in the bent portion at regular intervals and bent out of both sides with respect to the center line of the bent portion, so that the opening of the upper portion in the bent portion is formed by the reinforcement of the rebar It is easy and the tear 14 torn apart to form a hole has the same function as the nib can more effectively prevent the concrete from being separated from the steel.

또한, 전단연결재와 강재면 사이의 공간에 채워진 콘크리트는 전단연결재에 의해 구속되므로 전단연결재의 양측단부면에 접하는 콘크리트에 국부적으로 작용하는 높은 지압응력을 넓게 분포시켜 콘크리트가 종방향으로 할렬 파괴되는 것을 방지한다.In addition, the concrete filled in the space between the shear connector and the steel surface is constrained by the shear connector, so that the high pressure stress locally acting on the concrete contacting both end surfaces of the shear connector is widely distributed, thereby causing the concrete to split in the longitudinal direction. prevent.

또한, 전단연결재는 강재 보와 슬래브 콘크리트의 접합면에 작용하는 수평, 수직 전단력에 대하여 장부작용을 하여 슬래브 콘크리트가 층상으로 수평 및 수직 방향으로 분리되는 것을 방지할 수 있게 된다.In addition, the shear connector is loaded with the horizontal and vertical shear force acting on the joint surface of the steel beam and the slab concrete to prevent the slab concrete is separated in the horizontal and vertical direction in the layered.

이상과 같이 구성된 본 발명에 따른 전단연결재는 도 1에 도시된 바와 같이 다수개의 전단연결재가 소정 간격으로 H-형강 보의 상부 플랜지에 용접되거나, H-형강 보의 전체 길이에 걸쳐 하나의 전단연결재가 용접된다.Shear connector according to the present invention configured as described above is a plurality of shear connector is welded to the upper flange of the H-beams at a predetermined interval, as shown in Figure 1, or one shear connector over the entire length of the H-beams Is welded.

상술한 바와 같이 본 발명에 따르면, 강재와 콘크리트간의 분리 방지 및 하중 전달 효과가 우수하며, 콘크리트 지압면적을 확대시켜 콘크리트가 종방향으로 할렬 파괴되는 것을 방지할 수 있다.As described above, according to the present invention, the separation between the steel and the concrete and the load transfer effect is excellent, and the concrete acupressure area can be enlarged to prevent the concrete from splitting in the longitudinal direction.

비록 본 발명이 상기에서 언급한 바람직한 실시예와 관련하여 설명되어졌지만, 발명의 요지와 범위로부터 벗어남이 없이 다양한 수정이나 변형을 하는 것이 가능하다. 따라서 첨부된 특허청구범위는 본 발명의 요지에 속하는 어떠한 수정이나 변형도 포함할 것이다.Although the present invention has been described with reference to the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will include any modifications or variations that fall within the spirit of the invention.

Claims (1)

강콘크리트 합성구조나 복합구조에서 강재와 콘크리트 사이의 완전한 합성작용을 위해 강재에 접합되는 전단연결재에 있어서,In shear connector joined to steel for complete synthesis between steel and concrete in steel concrete composite or composite structure, 강판을 소정 형상으로 절곡하여 접합될 강재와의 사이에 콘크리트가 채워지는 공간이 형성되도록 하고 절곡 부분에는 콘크리트가 삽입되는 구멍을 형성하되, 상기 절곡 부분에 전단연결재의 길이방향으로 소정 폭의 절단선을 일정 간격으로 내고 절곡 부분의 중앙선을 기준으로 찢고 양측 밖으로 꺽어 절곡 부분에 구멍이 형성되도록 하고 구멍의 양측에는 촉부가 형성되도록 한 것을 특징으로 하는 콘크리트 구속형 전단연결재.The steel sheet is bent into a predetermined shape to form a space in which concrete is filled between the steel to be joined, and a hole into which the concrete is inserted is formed in the bent portion, and a cut line having a predetermined width in the longitudinal direction of the shear connection member at the bent portion. A concrete constrained shear connector, characterized in that at regular intervals, torn on the basis of the center line of the bent portion and bent out of both sides to form a hole in the bent portion, and the sides of the hole to form a cuff.
KR1020060031295A 2006-04-06 2006-04-06 Concrete-confined shear connector KR100684396B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020060031295A KR100684396B1 (en) 2006-04-06 2006-04-06 Concrete-confined shear connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060031295A KR100684396B1 (en) 2006-04-06 2006-04-06 Concrete-confined shear connector

Publications (1)

Publication Number Publication Date
KR100684396B1 true KR100684396B1 (en) 2007-03-12

Family

ID=38102022

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020060031295A KR100684396B1 (en) 2006-04-06 2006-04-06 Concrete-confined shear connector

Country Status (1)

Country Link
KR (1) KR100684396B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108104272A (en) * 2017-12-12 2018-06-01 上海市政工程设计研究总院（集团）有限公司 A kind of shear connector used in steel-concrete combined structure
CN109371834A (en) * 2018-11-23 2019-02-22 中铁建大桥工程局集团第工程有限公司 The shear connections component of steel-concrete composite beam floorings
CN113322785A (en) * 2021-06-21 2021-08-31 华南理工大学 Wide ladder-shaped cap-shaped connecting device and manufacturing method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09235813A (en) * 1996-03-01 1997-09-09 Nakayama Steel Works Ltd Deck plate
JPH11323834A (en) 1998-05-07 1999-11-26 Ishikawajima Harima Heavy Ind Co Ltd Connector
JP2002004474A (en) 2000-06-22 2002-01-09 Shimizu Corp Beam structure
KR20050032421A (en) * 2003-10-01 2005-04-07 비비엠코리아(주) Shear connector using perforated and/or cut out plate
KR20050107650A (en) * 2004-05-10 2005-11-15 한국건설기술연구원 Structure, method and apparatus for fiberglass reinforced plastics deck-to-girder connections
KR20060042725A (en) * 2004-11-10 2006-05-15 유성근 Concrete-confined shear connector
KR20060083776A (en) * 2005-01-18 2006-07-21 유성근 Steel beam with capping shear connector and composite beam using the steel beam

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09235813A (en) * 1996-03-01 1997-09-09 Nakayama Steel Works Ltd Deck plate
JPH11323834A (en) 1998-05-07 1999-11-26 Ishikawajima Harima Heavy Ind Co Ltd Connector
JP2002004474A (en) 2000-06-22 2002-01-09 Shimizu Corp Beam structure
KR20050032421A (en) * 2003-10-01 2005-04-07 비비엠코리아(주) Shear connector using perforated and/or cut out plate
KR20050107650A (en) * 2004-05-10 2005-11-15 한국건설기술연구원 Structure, method and apparatus for fiberglass reinforced plastics deck-to-girder connections
KR20060042725A (en) * 2004-11-10 2006-05-15 유성근 Concrete-confined shear connector
KR20060083776A (en) * 2005-01-18 2006-07-21 유성근 Steel beam with capping shear connector and composite beam using the steel beam

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108104272A (en) * 2017-12-12 2018-06-01 上海市政工程设计研究总院（集团）有限公司 A kind of shear connector used in steel-concrete combined structure
CN109371834A (en) * 2018-11-23 2019-02-22 中铁建大桥工程局集团第工程有限公司 The shear connections component of steel-concrete composite beam floorings
CN113322785A (en) * 2021-06-21 2021-08-31 华南理工大学 Wide ladder-shaped cap-shaped connecting device and manufacturing method

Similar Documents

Publication Publication Date Title
KR20060090406A (en) Steel beam with u-shaped connector and steel composite beam using the steel beam
KR100585503B1 (en) Shear connector using perforated and/or cut out plate
JP6132132B2 (en) High performance perforated steel plate gibber
JP2005002594A (en) Structure of joint between corrugated steel web and concrete floor slab in corrugated steel web pc bridge
KR101092499B1 (en) Shear connector of wave shape
KR100684396B1 (en) Concrete-confined shear connector
JP5744582B2 (en) Steel pipe combined perforated steel plate gibber
JP2017066702A (en) Vertical connection structure of steel sheet pipe and steel sheet pile wall
KR100639795B1 (en) Semi-rigid shear connector with openings at one side
JP5833616B2 (en) Construction method of joint structure of concrete precast slab for bridge
KR100684395B1 (en) Shear connector
JP7070890B2 (en) Joint structure
JP4781088B2 (en) Beam through hole reinforcement bracket, beam through hole reinforcement structure
JP2009102878A (en) Beam-column connection structure
JP5393329B2 (en) FRP member joining structure
JP2015190296A (en) H-shaped steel and column-beam joining structure
JP2015078533A (en) Composite segment and producing method of composite segment
JP2008063805A (en) Connection structure of full precast concrete slab
KR100698357B1 (en) Concrete-confined shear connector
JP5716486B2 (en) Girder bridge main girder, girder bridge main girder and concrete floor slab joint structure, concrete floor slab, girder bridge and bridge
JP2005105590A (en) Joint part structure of steel-concrete composition floor slab
KR100694887B1 (en) Detail of end part in H-shaped member
KR100639797B1 (en) Shear connector with flared shape head
JP6373591B2 (en) Joint structure of upper and lower work in steel bridge
KR20180123396A (en) Composite girder with enhanced stress distribution at connection between steel part and concrete part

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130826

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20140219

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20150224

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee