KR20140020032A - Grip apparatus for tendon - Google Patents

Grip apparatus for tendon Download PDF

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Publication number
KR20140020032A
KR20140020032A KR1020120086377A KR20120086377A KR20140020032A KR 20140020032 A KR20140020032 A KR 20140020032A KR 1020120086377 A KR1020120086377 A KR 1020120086377A KR 20120086377 A KR20120086377 A KR 20120086377A KR 20140020032 A KR20140020032 A KR 20140020032A
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South Korea
Prior art keywords
wedge member
tension
fixing
tendon
tension member
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KR1020120086377A
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Korean (ko)
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KR101377243B1 (en
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이근호
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이근호
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices
    • E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • 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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing

Abstract

The present invention relates to a tendon anchoring apparatus for anchoring a tendon (10) to an anchoring plate (20) having a tendon through-hole at the core thereof, and is to provide the tendon anchoring apparatus in order to prevent the loss of a tensile force due to a slip between an upper wedge member (200) and the tendon (10), and in order to maintain the stable anchoring structure of the tendon. The tendon anchoring apparatus according to the present invention comprises: a cylindrical main body (100) of which the bottom is formed to be supported by the anchoring plate (20) and the top has an upper wedge member anchoring part (110) having a cross-sectional structure where the inside becomes narrower to the bottom; an upper wedge member (200) having a tendon through-hole at the core thereof and installed to be anchored in the upper wedge member anchoring part (110); a lower wedge member (300) having a tendon through-hole at the core thereof, supported by the anchoring plate (20) at the bottom, and having a cross-sectional structure where the outside becomes narrower to the bottom; and an intermediate member (400) allowing the downward movement of the upper wedge member (200) to press the lower wedge member (300) and having a lower wedge member anchoring part (401) at the bottom to which the lower wedge member (300) is anchored, wherein the lower wedge member pressed by the downward movement of the intermediate member (400) and the upper wedge member (200), which is pressed in the main body (100) when the tendon (10) is anchored, restrains the tendon (10) so that a slip between the upper wedge member (200) and the tendon (10) is prevented.

Description

긴장재 정착장치{GRIP APPARATUS FOR TENDON}Tension material fixing device {GRIP APPARATUS FOR TENDON}

본 발명은 토목 분야에 관한 것으로서, 상세하게는 긴장재의 정착장치에 관한 것이다.The present invention relates to the field of civil engineering, and in particular, to a fixing device for tension members.

PS 거더, 어스 앵커 등 다양한 토목 구조물에 대하여 긴장재 및 정착장치가 사용되고 있다.Tension materials and fixing devices are used for various civil structures such as PS girders and earth anchors.

도 1,2는 종래의 긴장재 정착장치의 구조를 도시한 것이다.1 and 2 illustrate the structure of a conventional tension fixing device.

긴장재 관통공이 형성된 정착판(20)에 대하여, 긴장재(10)를 정착하기 위하여, 긴장재(10)를 쐐기부재(30 : '콘'이라고도 함)에 삽입하고, 이를 본체(40)의 정착부에 정착하는 구조를 일반적으로 사용한다.In order to fix the tension member 10 with respect to the fixing plate 20 in which the tension member through-holes are formed, the tension member 10 is inserted into the wedge member 30 (also referred to as a 'cone'), and this is fixed to the fixing portion of the main body 40. The fixing structure is generally used.

긴장재(10)를 상측으로 긴장하는 동안에는 쐐기부재(30)가 긴장재(10)에 대하여 아무런 역할을 하지 않지만, 긴장재(10)의 긴장작업이 완료되어 긴장재가 하측으로 이완하는 경우에는, 쐐기부재(30)가 긴장재(10)를 물고 본체(40)의 정착부에 결합하면서 내측으로 압박되므로, 긴장재(10)의 하측 이완구동을 방지할 수 있게 된다.While the wedge member 30 does not play any role with respect to the tension member 10 while the tension member 10 is tensioned upward, when the tension work of the tension member 10 is completed and the tension member relaxes downward, the wedge member ( Since 30 is pressed inward while the tension member 10 is coupled to the fixing unit of the main body 40, the lower relaxation driving of the tension member 10 can be prevented.

그런데, 이와 같은 종래의 구조에서는, 긴장재(10)의 이완 도중, 쐐기부재(30)가 긴장재(10)를 완전히 물기 전까지 긴장재(10)가 어느 정도 이완되는 것을 막을 수 없는데, 이를 슬립(silp)에 의한 긴장력 손실이라 한다.However, in such a conventional structure, during the relaxation of the tension member 10, it is not possible to prevent the tension member 10 from being relaxed to some extent until the wedge member 30 completely bites the tension member 10, which is slipped. This is called tension loss.

하나의 공사라 하더라도 다수의 긴장재가 소요되고, 긴장재(10)의 긴장작업을 위해서는 상당한 수고와 비용이 필요하므로, 위와 같은 긴장력의 손실은 전체적으로 공사비용 및 기간의 크나큰 손실을 발생시키는 요인이 된다는 점에서 문제로 지적되어 왔다.Even a single construction requires a large number of tension material, and a considerable effort and cost is required for the tension work of the tension material 10, the loss of the above tension is a factor that causes a significant loss of construction cost and period as a whole. Has been pointed out as a problem.

또한, 종래의 구조는 하나의 쐐기부재에 의해 하나의 긴장재를 정착하는 불안정한 구조이므로, 과도한 긴장력에 의해 쐐기부재에 과도한 압축력이 작용하는 경우, 쐐기부재의 파괴에 의해 긴장재가 이탈한다는 문제도 지적되어 왔다.In addition, since the conventional structure is an unstable structure in which one tension member is fixed by one wedge member, when the excessive compressive force acts on the wedge member due to excessive tension, the problem is that the tension member is released by the destruction of the wedge member. come.

본 발명은 상기와 같은 문제점을 해결하기 위하여 도출된 것으로서, 슬립에 의한 긴장력 손실을 방지할 수 있고, 긴장재의 안정적인 정착구조의 유지를 가능하게 하는 긴장재 정착장치를 제시하는 것을 그 목적으로 한다.The present invention has been made to solve the above problems, and an object of the present invention is to provide a tension fixing device that can prevent the loss of tension due to slip, and to maintain a stable fixing structure of the tension material.

상기 과제의 해결을 위하여, 본 발명은 심부에 긴장재 관통공이 형성된 정착판(20)에 대하여 긴장재(10)를 정착하기 위한 정착장치에 있어서, 하단이 상기 정착판(20)에 의해 지지되도록 형성됨과 아울러, 내주면이 하측을 향하여 점점 좁아지는 단면 구조의 상부 쐐기부재 정착부(110)가 상단에 형성된 통형 구조의 본체(100); 심부에 긴장재 관통공이 형성됨과 아울러, 상기 상부 쐐기부재 정착부(110)에 정착하도록 설치된 상부 쐐기부재(200); 심부에 긴장재 관통공이 형성됨과 아울러, 하단이 상기 정착판(20)에 의해 지지되도록 형성되며, 외주면이 하측를 향하여 점점 넓어지는 단면 구조로 설치된 하부 쐐기부재(300); 상기 하부 쐐기부재(300)가 정착하도록 하단에 하부 쐐기부재 정착부(401)가 형성됨과 아울러, 상기 상부 쐐기부재(200)의 하향 구동에 의해 상기 하부 쐐기부재(300)를 압박하도록 설치된 중간부재(400);를 포함하고, 상기 긴장재(10)의 정착 시, 상기 상부 쐐기부재(200)를 상기 본체(100)에 압입하면, 상기 상부 쐐기부재(200) 및 중간부재(400)의 하향 구동에 의해 압박된 상기 하향 쐐기부재가 상기 긴장재(10)를 구속하여, 상기 상부 쐐기부재(200)와 상기 긴장재(10) 사이의 슬립을 방지하는 것을 특징으로 하는 긴장재 정착장치를 제시한다.In order to solve the above problems, the present invention is a fixing device for fixing the tension member 10 with respect to the fixing plate 20, the tension member through-hole is formed in the core, the lower end is formed to be supported by the fixing plate 20 and In addition, the main body 100 of the tubular structure formed on the upper end of the upper wedge member fixing unit 110 of the cross-sectional structure is gradually narrowed toward the lower side; The upper wedge member 200 is formed to be fixed to the upper wedge member fixing unit 110, the tension material through-hole is formed in the core portion; A lower wedge member 300 having a tension member through hole formed at a core thereof, and having a lower end supported by the fixing plate 20, and having an outer circumferential surface gradually extending toward a lower side thereof; An intermediate member installed to press the lower wedge member 300 by downward driving of the lower wedge member fixing part 401 and a lower wedge member fixing part 401 formed at the bottom to fix the lower wedge member 300. Including, and, when the tension member 10 is fixed, when the upper wedge member 200 is press-fitted into the main body 100, the lower drive of the upper wedge member 200 and the intermediate member 400 The downward wedge member pressed by the restraint the tension member 10, to provide a tension member fixing device, characterized in that to prevent the slip between the upper wedge member 200 and the tension member (10).

상기 상부 쐐기부재(200)의 내주면에는 상기 긴장재(10)의 하측 이탈을 방지하기 위한 톱니부(201)가 형성된 것이 바람직하다.It is preferable that the tooth portion 201 is formed on the inner circumferential surface of the upper wedge member 200 to prevent the lower side separation of the tension member 10.

상기 하부 쐐기부재(300)의 내주면에는 상기 긴장재(10)의 하측 이탈을 방지하기 위한 톱니부(301)가 형성된 것이 바람직하다.It is preferable that the tooth portion 301 is formed on the inner circumferential surface of the lower wedge member 300 to prevent the lower side separation of the tension member 10.

상기 본체(100), 상부 쐐기부재(200), 하부 쐐기부재(300) 및 중간부재(400)는 원형 단면 구조로 형성된 것이 바람직하다.The main body 100, the upper wedge member 200, the lower wedge member 300 and the intermediate member 400 is preferably formed in a circular cross-sectional structure.

상기 중간부재(400)는 외주면이 상기 본체(100)의 내주면과 접촉한 상태에서 상하방향으로 구동하도록 설치된 것이 바람직하다.The intermediate member 400 is preferably installed so that the outer peripheral surface is driven in the vertical direction in contact with the inner peripheral surface of the main body 100.

상기 긴장재(10)의 정착이 완료된 상태에서, 상기 중간부재(400)와 하부 쐐기부재(300)의 결합을 강화하도록, 상기 중간부재(400)의 내주면과 상기 하부 쐐기부재(300)의 외주면에는 결합 강화부(500)가 형성된 것이 바람직하다.In the state that the fixing of the tension member 10 is completed, the inner peripheral surface of the intermediate member 400 and the outer peripheral surface of the lower wedge member 300 to strengthen the coupling of the intermediate member 400 and the lower wedge member 300 It is preferable that the coupling reinforcement part 500 is formed.

상기 결합 강화부(500)는 상기 중간부재(400)의 내주면을 둘러 형성된 홈부(510); 상기 홈부(510)에 결합하도록, 상기 하부 쐐기부재(300)의 외주면을 둘러 형성된 돌부(520);를 포함하는 것이 바람직하다.The coupling reinforcement part 500 includes a groove part 510 formed around an inner circumferential surface of the intermediate member 400; It is preferable to include; a protrusion 520 formed around the outer circumferential surface of the lower wedge member 300 to be coupled to the groove portion 510.

본 발명은 슬립에 의한 긴장력 손실을 방지할 수 있고, 긴장재의 안정적인 정착구조의 유지를 가능하게 하는 긴장재 정착장치를 제시한다.The present invention provides a tension fixing device that can prevent the loss of tension due to slip, and enables the maintenance of a stable fixing structure of the tension material.

도 1,2는 종래의 긴장재 정착장치의 구동에 관한 단면도.
도 3 이하는 본 발명에 의한 긴장재 정착장치의 실시예를 도시한 것으로서,
도 3,4는 제1 실시예의 구동에 관한 단면도.
도 5,6은 제2 실시예의 구동에 관한 부분단면도.1 and 2 are cross-sectional views of driving a conventional tension member fixing device.
3 or less shows an embodiment of the tension member fixing device according to the present invention,
3 and 4 are sectional views relating to driving of the first embodiment.
5 and 6 are partial sectional views relating to the driving of the second embodiment.

이하, 첨부도면을 참조하여 본 발명의 실시예에 관하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3 이하에 도시된 바와 같이, 본 발명은 기본적으로 심부에 긴장재 관통공이 형성된 정착판(20)에 대하여 긴장재(10)를 정착하기 위한 정착장치에 관한 것이다.As shown below in FIG. 3, the present invention relates to a fixing device for fixing the tension member 10 with respect to a fixing plate 20 in which a tension member through-hole is formed in a core part.

이는 크게 본체(100), 2개의 쐐기부재(200,300), 중간부재(400)에 의해 구성된다.It is largely composed of the main body 100, two wedge members (200, 300), the intermediate member (400).

본체(100)는 하단이 상기 정착판(20)에 의해 지지되도록 형성됨과 아울러, 내주면이 하측을 향하여 점점 좁아지는 단면 구조의 상부 쐐기부재 정착부(110)가 상단에 형성된 통형 구조를 취한다.The main body 100 has a tubular structure in which a lower end is formed to be supported by the fixing plate 20, and an upper wedge member fixing unit 110 having a cross-sectional structure in which an inner circumferential surface is gradually narrowed downward is formed at the upper end.

상부 쐐기부재(200)는 심부에 긴장재 관통공이 형성됨과 아울러, 상부 쐐기부재 정착부(110)에 정착하도록 설치된다.The upper wedge member 200 is provided so that the tension material through-hole is formed in the core portion and is fixed to the upper wedge member fixing unit 110.

하부 쐐기부재(300)는 심부에 긴장재 관통공이 형성됨과 아울러, 하단이 정착판(20)에 의해 지지되도록 형성되며, 외주면이 하측를 향하여 점점 넓어지는 단면 구조로 설치된다.The lower wedge member 300 is formed so that the tension material through-hole is formed in the core portion, the lower end is supported by the fixing plate 20, and the outer peripheral surface is installed in a cross-sectional structure gradually widening toward the lower side.

중간부재(400)는 하부 쐐기부재(300)가 정착하도록 하단에 하부 쐐기부재 정착부(401)가 형성됨과 아울러, 상부 쐐기부재(200)의 하향 구동에 의해 하부 쐐기부재(300)를 압박하도록 설치된다.The intermediate member 400 has a lower wedge member fixing part 401 formed at a lower end to fix the lower wedge member 300, and presses the lower wedge member 300 by downward driving of the upper wedge member 200. Is installed.

긴장재(10)의 긴장작업 중에는 2개의 쐐기부재(200,300)가 모두 벌어진 상태로 되어 긴장재(10)에 대하여 아무런 역할을 하지 않는다.During the tensioning operation of the tension member 10, the two wedge members 200 and 300 are both opened and do not play any role with respect to the tension member 10.

긴장작업의 종료 후, 긴장재(10)를 이완하기에 앞서, 상부 쐐기부재(200)를 본체(100)에 압입하는데, 이 경우 상부 쐐기부재(200) 및 중간부재(400)의 하향 구동에 의해 하부 쐐기부재(300)를 압박하게 되고, 압박된 하부 쐐기부재(300)는 긴장재(10)를 구속하여 하향(이완) 구동을 방해하게 된다.After the end of the tension work, prior to relaxing the tension member 10, the upper wedge member 200 is pressed into the main body 100, in this case by the downward drive of the upper wedge member 200 and the intermediate member 400 The lower wedge member 300 is pressed, and the pressed lower wedge member 300 restrains the tension member 10 to prevent downward (relaxation) driving.

이 상태에서 긴장재(10)를 이완하면, 하부 쐐기부재(300)가 긴장재(10)의 하향 구동을 방해하게 되므로, 슬립이 방지되어, 상부 쐐기부재(200)와 하부 쐐기부재(300)에 의한 긴장재(10)의 안정적인 정착구조를 이룰 수 있게 된다.When the tension member 10 is relaxed in this state, since the lower wedge member 300 interferes with the downward driving of the tension member 10, slip is prevented and the upper wedge member 200 and the lower wedge member 300 are prevented. It is possible to achieve a stable fixing structure of the tension member (10).

즉, 본 발명에 의한 정착장치와 같은 구조를 취하는 경우, 쐐기부재에 의한 정착구조를 취하면서도, 슬립에 의한 긴장력 손실을 방지할 수 있으므로, 긴장재가 소요되는 공사에 있어서 전체적으로 공사비용 및 기간을 크게 절감할 수 있다는 효과가 있다.That is, when taking the same structure as the fixing device according to the present invention, while taking the fixing structure by the wedge member, it is possible to prevent the loss of tension due to the slip, greatly increasing the construction cost and period as a whole in the construction that takes the tension material There is an effect that can be saved.

비록 본 발명에 의한 정착장치는 종래의 구조에 비해 다소 많은 자재가 소요된다는 단점이 있지만, 긴장재의 긴장작업에 소요되는 비용이 이에 비해 훨씬 크므로, 긴장력의 손실을 줄임에 따른 장점이 위 단점을 충분히 극복할 수 있다.Although the fixing device according to the present invention has a disadvantage in that it takes more material than the conventional structure, the cost of the tensioning work of the tension material is much larger than that, and the advantage of reducing the loss of tension force is disadvantageous. I can overcome it enough.

또한 종래와 달리 2개의 쐐기부재에 의해 하나의 긴장재를 정착하는 구조를 취하므로, 과도한 긴장력에 의해 과도한 압축력이 발생하더라도, 안정적인 정착구조를 유지할 수 있다는 효과가 추가된다.In addition, unlike the prior art, since the two wedge members have a structure for fixing one tension member, an effect of maintaining a stable fixing structure is added even if excessive compressive force is generated due to excessive tension.

상부 쐐기부재(200) 및 하부 쐐기부재(300)의 내주면에는, 긴장재(10)의 이완 시 하측 이탈을 방지하도록 톱니부(201,301)가 형성되는 것이 바람직하다.The inner peripheral surfaces of the upper wedge member 200 and the lower wedge member 300, it is preferable that the teeth 201, 301 are formed to prevent the lower side detachment when the tension member 10 is relaxed.

상부 쐐기부재(200)와 하부 쐐기부재(300)는 서로 반대의 구조로 설치되므로, 그 내부의 톱니부(201,301)의 구조가 반대로 형성되어야, 이들이 설치된 상태에서 톱니부(201,301)가 동일한 방향을 향하게 된다.Since the upper wedge member 200 and the lower wedge member 300 are installed in a structure opposite to each other, the structure of the teeth 201 and 301 therein should be reversed, so that the teeth 201 and 301 are in the same direction in the installed state. Is headed.

본체(100), 상부 쐐기부재(200), 하부 쐐기부재(300) 및 중간부재(400)는 원형 단면 구조로 형성되는 것이 안정적인 구동을 위하여 바람직하다.The main body 100, the upper wedge member 200, the lower wedge member 300 and the intermediate member 400 is preferably formed in a circular cross-sectional structure for stable driving.

중간부재(400)는 상부 쐐기부재(200)의 압입 시, 그 힘을 하부 쐐기부재(300)에 전달하여, 하부 쐐기부재(300)가 긴장재(10)를 압박하도록 하는 역할을 하는데, 그 외주면이 본체(100)의 내주면과 접촉한 상태에서 상하방향으로 구동하도록 설치되는 것이 위 구동을 안정적으로 수행하기 위하여 바람직하다.The intermediate member 400 transmits the force to the lower wedge member 300 when the upper wedge member 200 is press-fitted, and serves to press the lower wedge member 300 to press the tension member 10. It is preferable to be installed to drive in the vertical direction in contact with the inner circumferential surface of the main body 100 in order to perform the above drive stably.

상부 쐐기부재(200)의 압입에 의해 긴장재(10)의 정착이 완료된 상태에서, 중간부재(400)와 하부 쐐기부재(300)의 결합을 강화하여 안정적인 정착구조를 이루기 위해서는, 중간부재(400)의 내주면과 하부 쐐기부재(300)의 외주면에 별도의 결합 강화부(500)가 형성되는 것이 바람직하다(도 5,6).In the state where the fixing of the tension member 10 is completed by the press-fit of the upper wedge member 200, in order to achieve a stable fixing structure by strengthening the coupling of the intermediate member 400 and the lower wedge member 300, the intermediate member 400 is formed. It is preferable that a separate coupling reinforcement 500 is formed on the inner circumferential surface and the outer circumferential surface of the lower wedge member 300 (FIGS. 5 and 6).

결합 강화부(500)는 톱니 구조, 마찰력 발생구조 등에 의해 구현할 수도 있으나, 중간부재(400)의 내주면을 둘러 형성된 홈부(510); 홈부(510)에 결합하도록, 하부 쐐기부재(300)의 외주면을 둘러 형성된 돌부(520);를 포함하는 구성을 취함으로써, 긴장재의 정착 완료 시 중간부재(400)와 하부 쐐기부재(300)가 일체로 결합하도록 하는 것이 더욱 바람직하다.Coupling reinforcement 500 may be implemented by a sawtooth structure, friction force generating structure, etc., the groove portion 510 formed around the inner peripheral surface of the intermediate member 400; By engaging the groove 510, the protrusion 520 formed around the outer circumferential surface of the lower wedge member 300; taking a configuration including, the intermediate member 400 and the lower wedge member 300 is completed when the tension member is completed It is more desirable to combine them integrally.

위에서 상측, 하측, 상부, 하부 등으로 표현한 것은 구조 설명의 편의를 위한 것에 불과한 것으로서, 본 발명에 의한 정착장치가 실제 어스 앵커, 거더의 PS 구조 등에 적용됨에 있어서 긴장재의 배치구조에 따라, 상술한 상측과 하측이 좌측과 우측으로, 또는 하측과 상측으로 변경될 수 있다.The upper side, the lower side, the upper side, and the lower side are merely for convenience of description of the structure, and the fixing device according to the present invention is applied to the PS structure of the earth anchor, the girder, and the like according to the arrangement of the tension member. The upper side and the lower side may be changed to the left side and the right side, or the lower side and the upper side.

이상은 본 발명에 의해 구현될 수 있는 바람직한 실시예의 일부에 관하여 설명한 것에 불과하므로, 주지된 바와 같이 본 발명의 범위는 위의 실시예에 한정되어 해석되어서는 안 될 것이며, 위에서 설명된 본 발명의 기술적 사상과 그 근본을 함께 하는 기술적 사상은 모두 본 발명의 범위에 포함된다고 할 것이다.It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

10 : 긴장재 20 : 정착판
100 : 본체 110 : 상부 쐐기부재 정착부
200 : 상부 쐐기부재 201 : 톱니부
300 : 하부 쐐기부재 301 : 톱니부
400 : 중간부재 401 : 쐐기부재 정착부
500 : 결합 강화부 510 : 홈부
520 : 돌부10: tension member 20: fixing plate
100: main body 110: upper wedge member fixing unit
200: upper wedge member 201: tooth part
300: lower wedge member 301: tooth part
400: intermediate member 401: wedge member fixing unit
500: coupling reinforcement 510: groove
520: stone

Claims (7)

심부에 긴장재 관통공이 형성된 정착판(20)에 대하여 긴장재(10)를 정착하기 위한 정착장치에 있어서,
하단이 상기 정착판(20)에 의해 지지되도록 형성됨과 아울러, 내주면이 하측을 향하여 점점 좁아지는 단면 구조의 상부 쐐기부재 정착부(110)가 상단에 형성된 통형 구조의 본체(100);
심부에 긴장재 관통공이 형성됨과 아울러, 상기 상부 쐐기부재 정착부(110)에 정착하도록 설치된 상부 쐐기부재(200);
심부에 긴장재 관통공이 형성됨과 아울러, 하단이 상기 정착판(20)에 의해 지지되도록 형성되며, 외주면이 하측를 향하여 점점 넓어지는 단면 구조로 설치된 하부 쐐기부재(300);
상기 하부 쐐기부재(300)가 정착하도록 하단에 하부 쐐기부재 정착부(401)가 형성됨과 아울러, 상기 상부 쐐기부재(200)의 하향 구동에 의해 상기 하부 쐐기부재(300)를 압박하도록 설치된 중간부재(400);를 포함하고,
상기 긴장재(10)의 정착 시, 상기 상부 쐐기부재(200)를 상기 본체(100)에 압입하면, 상기 상부 쐐기부재(200) 및 중간부재(400)의 하향 구동에 의해 압박된 상기 하향 쐐기부재가 상기 긴장재(10)를 구속하여, 상기 상부 쐐기부재(200)와 상기 긴장재(10) 사이의 슬립을 방지하는 것을 특징으로 하는 긴장재 정착장치.In the fixing device for fixing the tension member 10 with respect to the fixing plate 20 in which the tension member through-hole is formed in the core,
A main body 100 having a tubular structure having a lower end formed to be supported by the fixing plate 20 and having an upper wedge member fixing unit 110 having a cross-sectional structure in which an inner circumferential surface thereof becomes narrower toward the lower side;
The upper wedge member 200 is formed to be fixed to the upper wedge member fixing unit 110, the tension material through-hole is formed in the core portion;
A lower wedge member 300 having a tension member through hole formed at a core thereof, and having a lower end supported by the fixing plate 20, and having an outer circumferential surface gradually extending toward a lower side thereof;
An intermediate member installed to press the lower wedge member 300 by downward driving of the lower wedge member fixing part 401 and a lower wedge member fixing part 401 formed at the bottom to fix the lower wedge member 300. 400, and
When the tension member 10 is fixed, when the upper wedge member 200 is press-fitted into the main body 100, the downward wedge member pressed by downward driving of the upper wedge member 200 and the intermediate member 400. Is restraining the tension member 10, the tension member fixing device, characterized in that to prevent the slip between the upper wedge member 200 and the tension member (10). 제1항에 있어서,
상기 상부 쐐기부재(200)의 내주면에는 상기 긴장재(10)의 하측 이탈을 방지하기 위한 톱니부(201)가 형성된 것을 특징으로 하는 긴장재 정착장치.The method of claim 1,
Tension member fixing device characterized in that the tooth portion 201 is formed on the inner peripheral surface of the upper wedge member 200 to prevent the lower side separation of the tension member (10). 제1항에 있어서,
상기 하부 쐐기부재(300)의 내주면에는 상기 긴장재(10)의 하측 이탈을 방지하기 위한 톱니부(301)가 형성된 것을 특징으로 하는 긴장재 정착장치.The method of claim 1,
The inner peripheral surface of the lower wedge member 300, the tension member fixing device, characterized in that the tooth portion 301 is formed to prevent the lower side separation of the tension member (10). 제1항에 있어서,
상기 본체(100), 상부 쐐기부재(200), 하부 쐐기부재(300) 및 중간부재(400)는 원형 단면 구조로 형성된 것을 특징으로 하는 긴장재 정착장치.The method of claim 1,
The main body 100, the upper wedge member 200, the lower wedge member 300 and the intermediate member 400 is a tension member fixing device, characterized in that formed in a circular cross-sectional structure. 제1항에 있어서,
상기 중간부재(400)는 외주면이 상기 본체(100)의 내주면과 접촉한 상태에서 상하방향으로 구동하도록 설치된 것을 특징으로 하는 긴장재 정착장치.The method of claim 1,
The intermediate member 400 is a tension member fixing device characterized in that the outer peripheral surface is installed to drive in the vertical direction in contact with the inner peripheral surface of the main body 100. 제1항에 있어서,
상기 긴장재(10)의 정착이 완료된 상태에서, 상기 중간부재(400)와 하부 쐐기부재(300)의 결합을 강화하도록, 상기 중간부재(400)의 내주면과 상기 하부 쐐기부재(300)의 외주면에는 결합 강화부(500)가 형성된 것을 특징으로 하는 긴장재 정착장치.The method of claim 1,
In the state that the fixing of the tension member 10 is completed, the inner peripheral surface of the intermediate member 400 and the outer peripheral surface of the lower wedge member 300 to strengthen the coupling of the intermediate member 400 and the lower wedge member 300 Tension material fixing device characterized in that the coupling reinforcement portion 500 is formed. 제7항에 있어서,
상기 결합 강화부(500)는
상기 중간부재(400)의 내주면을 둘러 형성된 홈부(510);
상기 홈부(510)에 결합하도록, 상기 하부 쐐기부재(300)의 외주면을 둘러 형성된 돌부(520);를 포함하는 것을 특징으로 하는 긴장재 정착장치.The method of claim 7, wherein
The coupling reinforcement unit 500
A groove 510 formed around an inner circumferential surface of the intermediate member 400;
And a protrusion (520) formed around the outer circumferential surface of the lower wedge member (300) so as to be coupled to the groove (510).
KR1020120086377A 2012-08-07 2012-08-07 Grip apparatus for tendon KR101377243B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101692488B1 (en) * 2016-03-02 2017-01-17 길준욱 Prestressed concrete girder having reinforcing member and the construction method thereof
CN110453591A (en) * 2019-08-14 2019-11-15 中国恩菲工程技术有限公司 Anchor and bridge with it
WO2020060314A1 (en) * 2018-09-20 2020-03-26 이근호 Device for fixing tension member
KR20200033708A (en) * 2018-09-20 2020-03-30 이근호 Grip apparatus for tendon
KR102601071B1 (en) * 2023-05-16 2023-11-10 컨텍이앤씨 주식회사 Cable anchor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200378282Y1 (en) 2004-12-15 2005-03-16 오원석 The steel frame the system which it connects
KR100684387B1 (en) 2005-12-09 2007-02-22 정락준 Tension apparatus and method for earth anchor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101692488B1 (en) * 2016-03-02 2017-01-17 길준욱 Prestressed concrete girder having reinforcing member and the construction method thereof
WO2020060314A1 (en) * 2018-09-20 2020-03-26 이근호 Device for fixing tension member
KR20200033708A (en) * 2018-09-20 2020-03-30 이근호 Grip apparatus for tendon
CN110453591A (en) * 2019-08-14 2019-11-15 中国恩菲工程技术有限公司 Anchor and bridge with it
KR102601071B1 (en) * 2023-05-16 2023-11-10 컨텍이앤씨 주식회사 Cable anchor

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