KR102144079B1 - Tendon posioning method to psc structure and psc structure thereiwth - Google Patents

Tendon posioning method to psc structure and psc structure thereiwth Download PDF

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KR102144079B1
KR102144079B1 KR1020200041056A KR20200041056A KR102144079B1 KR 102144079 B1 KR102144079 B1 KR 102144079B1 KR 1020200041056 A KR1020200041056 A KR 1020200041056A KR 20200041056 A KR20200041056 A KR 20200041056A KR 102144079 B1 KR102144079 B1 KR 102144079B1
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South Korea
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tension member
sheath
bundle
psc structure
ring portion
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KR1020200041056A
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Korean (ko)
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추태석
조윤영
김지현
장갑영
강재훈
정연근
김형빈
안영연
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(주)유진기업
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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
    • 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
    • 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/28—Concrete reinforced prestressed

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

The present invention relates to a method for inserting a tendon into a PSC structure and a PSC structure manufactured by using the same, the method which can quickly install a plurality of tendons at once while prevent tendons from being twisted when a sheath is installed on the PSC structure and the tendons are inserted into the sheath. The method for inserting a tendon into a PSC structure includes the following steps of: (a) providing one bundle of tendons; (b) installing a rug on an end portion of the one bundle of tendons; (c) installing a rotation fastening type clamping device having a ring part on the rug; (d) inserting an induction strand into an end point portion from a starting point portion of the sheath of the PSC structure; and (e) connecting the induction strand to the ring part of the rotation fastening type clamping device at the starting point portion of the sheath to jack the same at the end point portion of the sheath.

Description

PSC구조물에 긴장재를 삽입하는 방법 및 이를 이용하여 제작된 PSC구조물{TENDON POSIONING METHOD TO PSC STRUCTURE AND PSC STRUCTURE THEREIWTH}A method of inserting a tension member into a PSC structure and a PSC structure manufactured using it {TENDON POSIONING METHOD TO PSC STRUCTURE AND PSC STRUCTURE THEREIWTH}

본 발명은 PSC구조물에 긴장재를 삽입하는 방법 및 이를 이용하여 제작된 PSC구조물에 관한 것이다. 보다 구체적으로는 PSC구조물에 쉬스를 설치하고, 쉬스 내부에 긴장재 삽입 시, 서로 꼬이지 않도록 하면서, 한꺼번에 다수의 긴장재를 신속하게 설치할 수 있는 PSC구조물에 긴장재를 삽입하는 방법 및 이를 이용하여 제작된 PSC구조물에 관한 것이다.The present invention relates to a method of inserting a tension member into a PSC structure and a PSC structure manufactured using the same. More specifically, a method of installing a sheath on a PSC structure and inserting a tension member into a PSC structure capable of quickly installing a plurality of tension members at once while not twisting each other when inserting a tension member into the sheath, and a PSC structure manufactured using the same About.

도 1a는 종래 긴장재용 스페이서의 설치예시도를 도시한 것이다.Figure 1a shows an example installation of a spacer for a conventional tension member.

즉, 비부착 긴장재(A)가 내삽되는 한쌍의 비부착 긴장재홀(12)이 중앙부 양측에 각각 설치되고, 상기 비부착 긴장재홀(12)의 외측에 부착 긴장재(B)이 내삽(內揷)되는 복수의 부착 긴장재홀(13)이 양단 외측부가 절결된 상태로 설치된 몸체부(11);와That is, a pair of non-adherent tension member holes 12 into which the non-attachment tension member (A) is inserted are installed on both sides of the central portion, respectively, and the adhesive tension member (B) is inserted on the outside of the non-attachment tension member hole 12 (內揷) A plurality of attachment tension member holes 13 are installed in a state in which the outer portions of both ends are cut off; and

상기 몸체부에 형성된 한쌍의 비부착 긴장재홀 양단으로 각각 대향 배치되어 끼워지고, 내부 중앙의 관통공에는 비부착 긴장재가 각각 압입되어 고정되는 쐐기를 구비한 고정수단(15);을 포함하여 Including: a fixing means (15) having a wedge, which is disposed opposite and fitted to both ends of the pair of non-attachment tension member holes formed in the body portion, and is fixed by press-fitting the non-attachment tension member into the through hole in the inner center.

각각의 비부착 긴장재(A)에 대해서 비부착 긴장재홀(13)의 양단에 압입식으로 끼워진 쐐기(15-2)들이 비부착 긴장재(A) 상에서 몸체부(11)의 유동을 방지하여 정위치에 고정되도록 하고 있음을 알 수 있다.For each non-attachment tension member (A), wedges (15-2), which are press-fitted into both ends of the non-attachment tension member hole (13), prevent the flow of the body part 11 on the non-attachment tension member (A), and place it in place. You can see that it is fixed on.

도 1b는 종래 긴장재 삽입 설치를 위한 긴장재 배치장치를 도시한 것이다.Figure 1b shows a tension member placing device for the conventional tension member insertion installation.

콘크리트 부재에 긴장력을 가하는 복수개의 긴장재(30)의 단부에 결합되고, 상기 복수개의 긴장재(30)를 동시에 쉬스관(20) 내부로 통과시키는 가이드 판(40);A guide plate 40 which is coupled to the ends of the plurality of tension members 30 for applying a tension force to the concrete member, and passes the plurality of tension members 30 through the sheath tube 20 at the same time;

상기 가이드 판(40)의 이동방향 일면을 커버하여 상기 가이드 판(40)이 쉬스관(20)과 직접 충돌하는 것을 방지하는 덮개부재(50); 및A cover member 50 that covers one surface of the guide plate 40 in the moving direction to prevent the guide plate 40 from directly colliding with the sheath tube 20; And

상기 덮개부재(50)의 이동방향 일측과 연결되고, 긴장재(30)의 이동방향으로 상기 덮개부재(50)를 당겨서 상기 복수개의 긴장재(30)를 인출하는 인출선(60)을 포함하고 있음을 알 수 있다.It is connected to one side of the moving direction of the cover member 50, and includes a lead line 60 for pulling out the plurality of tension members 30 by pulling the cover member 50 in the moving direction of the tension member 30 Able to know.

즉, 종래 긴장재를 서로 이격 세팅시키는 스페이서를 설치하여 서로 꼬이는 현상을 방지할 수 있기는 하지만, 스페이서와 스페이서 사이의 이격거리가 길어지게 되면 긴장재의 연장길이에 다수의 스페이서를 설치해야 하는 문제점이 있어 비 효율적이라는 한계가 있었다.That is, although it is possible to prevent twisting with each other by installing spacers that set the tension members apart from each other, there is a problem that a plurality of spacers must be installed in the extension length of the tension member when the separation distance between the spacer and the spacer increases. There was a limit of ineffectiveness.

또한 종래 긴장재 삽입 설치를 위한 긴장재 배치장치는 가이드판에 다수 형성된 홀에 긴장재가 삽입되도록 하고, 홀딩부재(44)를 긴장재 단부에 결합시키는 방식으로 정착구를 설치하게 되는데, 이러한 홀딩부재(40)는 작업 시 긴장재로부터 분리가 되는 경우가 발생할 수 있고, 덮개부재(50)를 가이드판과 일체화시키기는 하지만 분리될 수 있어 작업성에 한계가 있었다.In addition, the conventional tension member placement device for inserting and installing a tension member allows the tension member to be inserted into a plurality of holes formed in the guide plate, and installs a fixing unit in a manner that couples the holding member 44 to the end of the tension member. Such a holding member 40 There may be a case of being separated from the tension member during operation, and although the cover member 50 is integrated with the guide plate, it can be separated, so there is a limitation in workability.

대한민국 특허 제10-0991870호(발명의 명칭: 프리스트레스 콘크리트용 긴장재의 스페이서, 공개일자: 2010년11월04일)Korean Patent No. 10-0991870 (Name of invention: Spacer for tension member for prestressed concrete, Publication date: November 4, 2010) 대한민국 공개특허 제10-2015-0071307(발명의 명칭:피씨 구조물의 쉬스관 내부로의 긴장재 배치 장치 및 이를 사용한 피씨 구조물의 제작 방법, 공개일자: 2015년06월26일)Republic of Korea Patent Laid-Open Patent No. 10-2015-0071307 (Title of invention: Tension member placement device inside the sheath tube of PC structure and method of manufacturing PC structure using the same, Publication date: June 26, 2015)

이에 본 발명은 PSC구조물에 긴장재를 1다발로 만들어서 쉬스에 삽입함에 있어 각 긴장재가 꼬이지 않고, 삽입되도록 함으로서 안정적인 프리스트레스 도입이 가능한 PSC구조물에 긴장재를 삽입하는 방법 및 이를 이용하여 제작된 PSC구조물 제공을 해결하고자 하는 기술적 과제로 한다.Accordingly, the present invention provides a method of inserting a tension member into a PSC structure capable of stably introducing a prestress by making a bundle of tension members in a PSC structure and inserting them into the sheath without twisting each tension member, and providing a PSC structure manufactured using the same. It is a technical problem to be solved.

상기 과제를 달성하기 위한 본 발명의 PSC구조물에 긴장재를 삽입하는 방법 및 이를 이용하여 제작된 PSC구조물은 (a) 1다발의 긴장재를 구비하는 단계; (b) 상기 1다발의 긴장재의 단부에 러그를 설치하는 단계; (c) 상기 러그에 고리부가 형성된 회전체결식 클램핑장치를 설치하는 단계; (d) PSC구조물의 쉬스의 시점부로부터 종점부에 유도용 강연선 삽입하는 단계; 및 (e) 상기 쉬스의 시점부에서 회전체결식 클램핑장치의 고리부에 유도용 강연선을 연결하여, 쉬스의 종점부에서 잭킹하는 단계;를 포함하며, 상기 (b) 단계의 러그는, 외측 원형링부 내측에 직경만 달리하는 내측 원형링부가 설치되어 있으며, 상기 외측 원형링부와 내측 원형링부 사이는 탄성스프링으로 서로 결속된 것으로서, 1다발의 긴장재를 탄성을 가진 내측 원형링부에 간단하게 끼워 설치할 수 있도록 하고, 외측 원형링부는 회전체결식 클램핑장치의 반구형 소켓몸통부가 회전 체결되도록 하여, 탄성스프링에 의하여 회전체결식 클램핑장치를 장착하거나, 쉬스에 삽입할 때 발생하는 잭킹 하중이 긴장재에 직접 전달되지 않도록 하게 된다.The method of inserting a tension member into the PSC structure of the present invention for achieving the above object, and the PSC structure manufactured using the same, includes the steps of: (a) having one bundle of tension members; (b) installing a lug at the end of the one bundle of tension members; (c) installing a rotary clamping device having a ring portion formed on the lug; (d) inserting an induction strand from the starting point of the sheath of the PSC structure to the end point; And (e) connecting an induction strand to a ring portion of a rotational clamping device at the starting portion of the sheath, and jacking at the end portion of the sheath; wherein the lug of step (b) includes an outer circular ring portion An inner circular ring with a different diameter only is installed on the inside, and the outer circular ring and the inner circular ring are bound to each other with an elastic spring, so that one bundle of tension members can be simply inserted into the elastic inner circular ring. And, the outer circular ring part allows the hemispherical socket body of the rotation clamping device to rotate and fasten, so that the clamping load generated when the rotation clamping device is mounted or inserted into the sheath is not directly transmitted to the tension member. Is done.

본 발명에 의하면 PSC구조물에 형성된 쉬스에 안정적으로 긴장재를 삽입시킬 수 있어 PSC거더의 제작에 있어 품질관리가 가능하게 되어 보다 경제적인 PSC거더 제작이 가능하게 된다.According to the present invention, it is possible to stably insert the tension member into the sheath formed on the PSC structure, thereby enabling quality control in the manufacture of the PSC girder, thereby enabling more economical PSC girder production.

또한, 회전체결식 클램핑장치가 회전 체결되는 러그는 외측 원형링부와 내측 원형링부 및 탄성스프링을 이용함으로서 1다발의 긴장재 잭킹 효율성을 높여 보다 신속한 긴장재 작업이 가능하게 된다.In addition, the lug to which the rotational clamping device is rotated uses an outer circular ring part, an inner circular ring part, and an elastic spring to increase the jacking efficiency of one bundle of tension members, thereby enabling a more rapid tension member work.

도 1a는 종래 긴장재용 스페이서의 설치예시도,
도 1b는 종래 긴장재 삽입 설치를 위한 긴장재 배치장치,
도 2a 및 도 2b는 본 발명의 PSC구조물에 긴장재를 삽입하는 방법의 순서도,
도 3은 본 발명의 PSC구조물에 긴장재를 삽입하는 방법에 의하여 제작된 PSC구조물의 예시도를 도시한 것이다.Figure 1a is an example installation of a spacer for a conventional tension member,
Figure 1b is a tension member placement device for the conventional tension member insertion installation,
2a and 2b are flow charts of a method of inserting a tension member into the PSC structure of the present invention,
Figure 3 shows an exemplary view of the PSC structure manufactured by the method of inserting a tension member into the PSC structure of the present invention.

아래에서는 첨부한 도면을 참조하여 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 실시예를 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다. 그리고 도면에서 본 발명을 명확하게 설명하기 위해서 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 유사한 부분에 대해서는 유사한 도면 부호를 붙였다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are attached to similar parts throughout the specification.

명세서 전체에서, 어떤 부분이 어떤 구성요소를 "포함"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있는 것을 의미한다.Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary.

[ 본 발명의 PSC구조물(100)에 긴장재(110)를 삽입하는 방법 ][Method of inserting the tension member 110 into the PSC structure 100 of the present invention]

도 2a 및 도 2b는 본 발명의 PSC구조물(100)에 긴장재를 삽입하는 방법의 순서도를 도시한 것이다.Figures 2a and 2b shows a flow chart of a method of inserting a tension member in the PSC structure 100 of the present invention.

상기 PSC구조물(100)에 긴장재를 삽입하는 방법은 도 2a와 같이, 다수의 긴장재(110)를 동일한 길이로 절단한 후, 긴장재(110) 각각을 식별할 수 있도록 마킹의 방법으로 식별수단(120)를 이용하여 시점부와 종점부에서 각각의 긴장재(110)를 서로 식별할 수 있도록 하는 작업을 먼저 실시하게 된다.The method of inserting the tension member into the PSC structure 100 is as shown in FIG. 2A, after cutting a plurality of tension members 110 to the same length, the identification means 120 by a method of marking so that each of the tension members 110 can be identified. ) To identify each tension member 110 from each other at the start and end points.

다음으로는 서로 꼬이지 않도록 시점부와 종점부에만 간격유지재(130)를 1다발의 긴장재(110)의 양 단부에 삽입시켜 놓게 된다.Next, so as not to twist each other, only the start and end portions of the gap holding member 130 are inserted into both ends of the tension member 110 of one bundle.

이에 상기 시점부와 종점부 사이에는 간격유지재(130)를 설치하지 않기 때문에 간격유지재(130) 사이의 1다발의 긴장재(110)가 서로 꼬일 수 있어 중간밴드(140)를 이용하여 각각이 긴장재(110)를 서로 압착시켜 구속시키게 된다.Therefore, since the spacer 130 is not installed between the start and end portions, one bundle of tensioners 110 between the spacer 130 can be twisted together, so that each tension member using the intermediate band 140 (110) is constrained by compressing each other.

이에 1다발의 긴장재(110) 양 단부에 러그(150)를 일체화시키게 되는데, 구속된 1다발의 긴장재(110)의 양 단부에 끼워지도록 하면서 외주면에 나사부가 형성된 러그(150)를 이용하여 신속하게 러그(150)가 가능하도록 하게 된다.Accordingly, the lugs 150 are integrated at both ends of the tension member 110 of one bundle, while being fitted to both ends of the tension member 110 of one bundle of constrained tension members, quickly by using the lugs 150 having threaded portions on the outer circumferential surface. The lugs 150 are made possible.

또한, 상기 러그(150)의 외주면에 고리가 형성된 회전체결식 클램핑장치(160)를 간단하게 체결식으로 장착하게 된다.In addition, a rotation fastening type clamping device 160 having a ring formed on the outer circumferential surface of the lug 150 is simply mounted in a fastening manner.

이에 PSC구조물(100)에 1가닥의 유도용 강연선(112)를 쉬스(111)에 삽입하여 시점부와 종점부에 단부가 노출되도록 한 후, 종점부에서 유도용 강연선(112)의 단부에 고리가 형성된 회전체결식 클램핑장치(160)를 연결하고, 시점부에서 유도용 강연선(112)을 잭킹시켜 1다발의 긴장재(110)를 한꺼번에 쉬스(111)에 삽입되도록 하게 된다.Accordingly, a single strand of induction strand 112 is inserted into the PSC structure 100 in the sheath 111 so that the ends are exposed at the start and end points, and then a ring is formed at the end of the induction strand 112 at the end point. The rotational clamping device 160 is connected, and the induction strand 112 is jacked at the viewpoint so that one bundle of tension members 110 is inserted into the sheath 111 at a time.

이에 상기 본 발명의 PSC구조물(100)에 긴장재(110)를 삽입하는 방법은 도 2a 및 도 2b를 기준으로 살펴보면 다음과 같다.Accordingly, a method of inserting the tension member 110 into the PSC structure 100 of the present invention is as follows based on FIGS. 2A and 2B.

먼저, 상기 PSC구조물(100)은 도 2a와 같이, 긴장재(110), 식별수단(120), 간격유지재(130), 중간밴드(140), 러그(150), 회전체결식 클램핑장치(160)를 포함한다.First, the PSC structure 100, as shown in Figure 2a, the tension member 110, the identification means 120, the gap holding member 130, the intermediate band 140, the lug 150, a rotational clamping device 160 ).

이러한 PSC구조물(100)은 PSC거더로서 도 2a와 같이, 강재거푸집 내부에 철근조립체를 배치하고, 긴장재(110)가 PSC구조물(100) 전체 연장길이에 걸쳐 설치되는 쉬스를 배치하고, 철근조립체와 쉬스가 매립되도록 콘크리트를 타설하여 철근콘크리트 거더로 제작된다. 이러한 쉬스(111)는 내부가 빈 공간이므로 긴장재(110)를 삽입사킬 수 있게 된다.This PSC structure 100 is a PSC girder, as shown in Fig.2a, arranging a reinforcing bar assembly inside the steel formwork, and arranging a sheath in which the tension member 110 is installed over the entire length of the PSC structure 100, and the reinforcing bar assembly and It is made of reinforced concrete girders by pouring concrete so that the sheath is buried. Since the sheath 111 has an empty space inside, the tension member 110 can be inserted.

다음으로 상기 긴장재(110)는 도 2a와 같이, PC강연선으로서 다수의 PC강연선을 쉬스(111)에 삽입시켜 PSC구조물(100) 내부에 세팅시키게 되는데, 각각의 PC강연선 1개씩 쉬스에 삽입하는 경우 작업성이 떨어지기 때문에 다수(예컨대, 긴장재 11-16개를 1다발로 할 수 있다.)를 묶어 쉬스(111)에 삽입되도록 하게 된다.Next, the tension member 110 is set inside the PSC structure 100 by inserting a plurality of PC strands as PC strands into the sheath 111, as shown in FIG. 2A. When one PC strand is inserted into the sheath Because workability is inferior, a large number (for example, 11-16 tension members can be made into one bundle) is tied and inserted into the sheath 111.

PSC구조물(100)의 연장길이 보다는 약간 길게 연장된 긴장재(110)를 커팅한 것을 다발로 결속하여 쉬스에 삽입하게 되는데 PSC구조물(100)의 일측 단부면 즉 시점부에서 PSC구조물(100)의 타측 단부면 즉, 종점부를 경유하여 연속되도록 쉬스에 삽입되도록 설치된다.The tension member 110, which is slightly longer than the extension length of the PSC structure 100, is cut into a bundle and inserted into the sheath. One end surface of the PSC structure 100, that is, the other side of the PSC structure 100 It is installed so as to be inserted into the sheath so as to be continuous via the end face, that is, the end point.

다음으로, 상기 식별수단(120)은 도 2a와 같이, 긴장재(110) 각각에 컬러링 또는 테이핑을 통해 다발로 묶여질 긴장재(110)로 표시한 것이다.Next, the identification means 120, as shown in Figure 2a, the tension member 110 is displayed as a tension member 110 to be tied in bundles through coloring or taping, respectively.

이는 통상 긴장재(110)가, 롤 형태로 보빈등에 감아져 있고, 일정한 길이로 동일하게 커팅하게 되는데, 동일한 길이로 커팅된 것으로 표시하기 위한 것이라 할 수 있다.This is usually the tension member 110, which is wound around a bobbin in the form of a roll, and is cut equally to a certain length, but it can be said that it is for marking that it is cut to the same length.

다음으로 상기 간격유지재(130)는 도 2a와 같이, 1다발로 묶여질 각각 긴장재(110)를 구속하면서, 서로 꼬이지 않도록 서로의 간격을 확보하기 위한 것으로서 도 1a와 는 다소 차이가 있는데, 예컨대 몸체부에 관통공이 형성되어 있고, 관통공에 긴장재 각각이 삽입되도록 하여 서로의 간격을 일정하게 유지할 수 있도록 한 것으로서, 긴장재에 끼워지는 스페이서라 할 수 있다.Next, as shown in FIG. 2A, the gap-holding member 130 is for securing a gap between each other so as not to twist each other while constraining each tension member 110 to be bundled in one bundle, and is somewhat different from FIG. 1A, for example A through hole is formed in the body part, and each tension member is inserted into the through hole to maintain a constant distance from each other, and it can be referred to as a spacer fitted to the tension member.

이러한 간격유지재(130)는 플라스틱 재질로 이루어진 것을 이용하되 긴장재(110) 1다발의 양 단부에만 설치 함으로서, 다수를 설치함에 따른 작업성 저하를 장지할 수 있도록 하게 된다.The gap holding member 130 is made of a plastic material, but is installed only at both ends of one bundle of the tension member 110 so as to prevent a decrease in workability due to the installation of a large number.

다음으로 상기 중간밴드(140)는 도 2a와 같이, 간격유지재(130)를 1다발의 긴장재(110)의 양 단부에만 끼워 설치하기 때문에 양 단부 사이의 긴장재(110)들이 서로 꼬이는 것을 방지하기 위한 것으로서, 긴장재(110)의 연장길이에 따라 다수를 서로 이격시켜 1다발의 긴장재를 감싸도록 하면서 결속시키게 되며 탄성 밴드를 이용하면 된다.Next, the intermediate band 140, as shown in Figure 2a, because the space-holding member 130 is installed by fitting only at both ends of the tension member 110 of one bundle, to prevent the tension members 110 between both ends from twisting each other. As for, according to the extension length of the tension member 110, a plurality of tension members are spaced apart from each other to wrap around one bundle of tension members and bind together, and an elastic band may be used.

다음으로 상기 러그(150)는 도 2a와 같이, 1다발의 긴장재(110)를 삽입시키기 위하여 1다발의 긴장재(110) 단부에 끼워 설치되는 일종의 소켓부재이다.Next, as shown in FIG. 2A, the lug 150 is a type of socket member fitted to the end of one bundle of tension members 110 in order to insert the bundle of tension members 110.

상기 긴장재(110)는 1다발로서 간격유지재(130) 및 중간밴드(140)에 의하여 서로 꼬이지 않고 배열되어 쉬스(111)에 삽입될 수 있게 되며, PSC구조물(100)의 시점부에서 종점부로 잭킹에 의하여 쉬스(111) 내부로 배치할 수 있도록 1다발의 긴장재(110) 단부에 소켓부재로서 러그(150)를 결속시키게 된다.The tension member 110 is arranged without twisting each other by the gap holding member 130 and the intermediate band 140 as a bundle, so that it can be inserted into the sheath 111, from the start point to the end point of the PSC structure 100 The lug 150 is bound as a socket member at the end of the tension member 110 of one bundle so that it can be placed inside the sheath 111 by jacking.

이러한 러그(150)를 구체적으로 살펴보면 도 2b와 같이, 외측 원형링부(151) 내측에 직경만 달리하는 내측 원형링부(152)가 설치되어 있으며, 상기 외측 원형링부(151)와 내측 원형링부(151) 사이는 탄성스프링(153)으로 서로 결속되어 있다.Looking specifically at such a lug 150, as shown in FIG. 2B, an inner circular ring portion 152 having only a different diameter is installed inside the outer circular ring portion 151, and the outer circular ring portion 151 and the inner circular ring portion 151 ) Are bound to each other by an elastic spring 153.

이때 상기 내측 원형링부(152)의 직경은 1다발의 긴장재(110)가 끼워질 정도의 직경을 가진 탄성을 가진 플라스틱 밴드이고, 상기 외측 원형링부(151)는 경화재질의 플라스틱 재질로서 외주면에는 나사체결부가 형성된 것을 이용하게 된다.At this time, the diameter of the inner circular ring part 152 is a plastic band having elasticity having a diameter enough to fit one bundle of tension members 110, and the outer circular ring part 151 is a plastic material made of a hardened material and has a screw on the outer circumferential surface. It is used that the fastening part is formed.

즉, 1다발의 긴장재(110)을 준비할 때마다 직경 차이가 있을 수 있어 탄성을 가진 내측 원형링부(152)에 간단하게 끼워 설치할 수 있도록 하고, 외측 원형링부(151)는 후술되는 회전체결식 클램핑장치(160)가 연결되는 부위이므로 어느 정도의 내구성을 가진 재질을 이용하되,That is, there may be a difference in diameter each time the tension member 110 of one bundle is prepared, so that it can be simply fitted and installed in the elastic inner circular ring part 152, and the outer circular ring part 151 is a rotational fastening type to be described later. Since the clamping device 160 is connected, a material having a certain degree of durability is used,

탄성스프링(153)을 이용하여 서로를 결속시키게 되면 회전체결식 클램핑장치(160)를 장착하거나, 쉬스에 삽입할 때 발생하는 잭킹 하중이 긴장재(110)에 직접 전달되지 않아 긴장재(110)가 서로 꼬이는 현상을 보다 효율적으로 방지할 수 있게 된다.When the elastic springs 153 are used to bind each other, the jacking load generated when the rotation clamping device 160 is mounted or inserted into the sheath is not directly transmitted to the tension member 110, so that the tension member 110 The twisting phenomenon can be more effectively prevented.

다음으로 상기 회전체결식 클램핑장치(160)는 도 2a와 같이, 러그(150)에 결속된 고리부가 형성되어 상기 고리부를 통해 1다발의 긴장재(110)를 PSC구조물(100)의 시점부와 종점부로 잭킹하기 위한 쟁킹용 홀더이다. Next, the rotational clamping device 160 is formed with a ring portion bound to the lug 150, as shown in FIG. 2A, and inserts one bundle of tension members 110 through the ring portion at the start and end portions of the PSC structure 100. It is a holding holder for jacking with.

이에 반구형 소켓몸통부(161)은 도 2b와 같이, 러그(150)의 외측 원형링부(151) 외주면에 형성된 나사체결부에 회전체결되도록 하게 되며, 상기 반구형 소켓몸통부(161)에는 고리부가 일체로 형성되어 있음을 알 수 있다.Accordingly, the hemispherical socket body 161 is rotated to a screw fastening part formed on the outer circumferential surface of the outer circular ring part 151 of the lug 150, as shown in FIG. 2B, and the hemispherical socket body 161 includes a ring part. It can be seen that it is formed of.

이에 상기 고리부에 도 2a와 같이, 유도용 강연선(112)을 연결하여 회전체결식 클램핑장치(160)를 잭킹시키게 되면 회전체결식 클램핑장치(160)와 러그(150)를 통해 1다발의 긴장재(110)를 쉬스(111) 내부로 삽입 시킬 수 있게 된다.Accordingly, as shown in FIG. 2A, when the induction strand 112 is connected to jack the rotary clamping device 160, one bundle of tension members through the rotary clamping device 160 and the lug 150 It is possible to insert (110) into the sheath (111).

구체적으로 살펴보면, 도 2a와 같이,Looking specifically, as shown in Figure 2a,

먼저, PSC구조물(100)의 내부에는 쉬스(111)가 배치되어 있음을 알 수 있으며 상기 쉬스(111)에 유도용 강연선(112) 1가닥을 PSC구조물(100)의 시점부에서 종점부를 경유하도록 삽입시키게 된다.First, it can be seen that the sheath 111 is disposed inside the PSC structure 100, and one strand of the guiding strand 112 is passed through the end point at the starting point of the PSC structure 100. Is inserted.

이에 시점부의 유도용 강연선(112)에 회전체결식 클램핑장치(160)의 고리부를 연결시키고,Accordingly, to connect the ring portion of the rotational clamping device 160 to the induction strand 112 of the viewpoint,

PSC구조물(100)의 종점부에서 유도용 강연선(112)을 잭킹시키게 되면 시점부에 위치한 회전체결식 클램핑장치(160)이 종점부로 강재로 이동하게 되면 이 과정에서 1다발의 긴장재(110)는 쉬스(111)에 한꺼번에 삽입시킬 수 있게 된다.When the guiding strand 112 is jacked at the end point of the PSC structure 100, the rotating clamping device 160 located at the starting point moves to the steel material to the end point. In this process, the tension member 110 of one bundle is sheathed. (111) can be inserted all at once.

[본 발명의 PSC구조물에 긴장재를 삽입하는 방법에 의하여 제작된 PSC구조물(100)] 도 3은 본 발명의 PSC구조물(100)에 긴장재(110)를 삽입하는 방법에 의하여 제작된 PSC구조물(100)의 예시도를 도시한 것이다.[The PSC structure 100 manufactured by the method of inserting the tension member into the PSC structure of the present invention] Figure 3 is a PSC structure 100 manufactured by the method of inserting the tension member 110 into the PSC structure 100 of the present invention ) Shows an exemplary diagram.

상기 PSC거더는 앞서 살펴본 PSC구조물에 긴장재를 삽입하는 방법에 의하여 제작된 PSC구조물(100)로서 내부에는 1다발의 긴장재(110)가 식별수단(120)에 의하여 각각의 긴장재가 구별되어 있으며, 간격유지재(130)는 1다발의 긴장재(110)의 양 단부에 형성되어 있고, 1다발의 긴장재(110)의 양 단부 사이에는 중간밴드(140)가 설치되어 있고, 앞서 살펴본 러그(150)와 회전체결식 클램핑장치(160)를 이용하여 긴장재(110)가 쉬스(111)에 삽입되어 있음을 알 수 있다.The PSC girder is a PSC structure 100 manufactured by the method of inserting a tension member into the PSC structure described above. Inside, one bundle of tension members 110 is distinguished by each tension member by an identification means 120, and the gap The holding member 130 is formed at both ends of the tension member 110 of one bundle, and an intermediate band 140 is installed between both ends of the tension member 110 of one bundle, and the lug 150 and It can be seen that the tension member 110 is inserted into the sheath 111 by using the rotating clamping device 160.

이에 쉬스(111)의 시점부와 종점부에는 정착장치(170)가 설치되어 있어, 긴장재(110)를 정착장치(170)를 관통하여 설치한 상태에서 긴장 및 정착이 가능하도록 할 수 있고, 1다발의 긴장재(110)는 서로 꼬이지 않게 되며, 쉬스는 최종 마감재로 충전되는 등의 방식으로 PSC구조물에 프리스트레스가 도입되도록 하게 된다.Accordingly, a fixing device 170 is installed at the start and end portions of the sheath 111, so that tension and fixation are possible in a state in which the tension member 110 is installed through the fixing device 170, and one bundle Tension members 110 are not twisted with each other, and the sheath is to be introduced into the PSC structure in such a manner as to be filled with the final finishing material.

이에 이와 같은 PSC구조물로 제작하지 않는 경우, 도 3에 의하면 긴장재(110)가 서로 꼬이게 되며 이 경우 소요의 프리스트레스가 PSC구조물에 도입되지 않을 수 있음을 알 수 있다.Accordingly, in the case of not fabricating such a PSC structure, according to FIG. 3, the tension members 110 are twisted together, and in this case, it can be seen that the required prestress may not be introduced into the PSC structure.

전술한 본 발명의 설명은 예시를 위한 것이며, 본 발명이 속하는 기술분야의 통상의 지식을 가진 자는 본 발명의 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 쉽게 변형이 가능하다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해해야만 한다. 예를 들어, 단일형으로 설명되어 있는 각 구성 요소는 분산되어 실시될 수도 있으며, 마찬가지로 분산된 것으로 설명되어 있는 구성 요소들도 결합된 형태로 실시될 수 있다.The above description of the present invention is for illustrative purposes only, and those of ordinary skill in the art to which the present invention pertains will be able to understand that other specific forms can be easily modified without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미 및 범위 그리고 그 균등 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

100: PSC구조물 110: 긴장재
111: 쉬스 112: 유도용 강연선
120: 식별수단 130: 간격유지재
140: 중간밴드 150: 러그
160: 회전체결식 클램핑장치
161: 반구형 소켓몸통부 170: 정착장치100: PSC structure 110: tension member
111: sheath 112: induction strand
120: identification means 130: gap holding material
140: middle band 150: lug
160: rotary clamping device
161: hemispherical socket body 170: fixing device

Claims (4)

(a) 1다발의 긴장재(110)를 구비하는 단계;
(b) 상기 1다발의 긴장재(110)의 단부에 러그(150)를 설치하는 단계;
(c) 상기 러그(150)에 고리부가 형성된 회전체결식 클램핑장치(160)를 설치하는 단계;
(d) PSC구조물(100)의 쉬스(111)의 시점부로부터 종점부에 유도용 강연선(112) 삽입하는 단계; 및
(e) 상기 쉬스(111)의 시점부에서 회전체결식 클램핑장치(160)의 고리부에 유도용 강연선(112)을 연결하여, 쉬스(111)의 종점부에서 잭킹하는 단계;를 포함하며,
상기 (b) 단계의 러그(150)는, 외측 원형링부(151) 내측에 직경만 달리하는 내측 원형링부(152)가 설치되어 있으며, 상기 외측 원형링부(151)와 내측 원형링부(151) 사이는 탄성스프링(153)으로 서로 결속된 것으로서,
1다발의 긴장재(110)를 탄성을 가진 내측 원형링부(152)에 간단하게 끼워 설치할 수 있도록 하고, 외측 원형링부(151)는 회전체결식 클램핑장치(160)의 반구형 소켓몸통부(161)가 회전 체결되도록 하여, 탄성스프링(153)에 의하여 회전체결식 클램핑장치(160)를 장착하거나, 쉬스에 삽입할 때 발생하는 잭킹 하중이 긴장재(110)에 직접 전달되지 않도록 하는 PSC구조물에 긴장재를 삽입하는 방법.(a) providing a tension member 110 of one bundle;
(b) installing a lug 150 at the end of the one bundle of tension members 110;
(c) installing a rotatable clamping device 160 in which a ring portion is formed on the lug 150;
(d) inserting an induction strand 112 from the starting point to the end point of the sheath 111 of the PSC structure 100; And
(e) connecting the guiding strand 112 to the ring portion of the rotary clamping device 160 at the starting point of the sheath 111, and jacking at the end of the sheath 111;
In the lug 150 of step (b), an inner circular ring portion 152 having only a different diameter is installed inside the outer circular ring portion 151, and between the outer circular ring portion 151 and the inner circular ring portion 151 Is bound to each other with an elastic spring 153,
One bundle of tension members 110 can be simply inserted into the elastic inner circular ring part 152, and the outer circular ring part 151 is a hemispherical socket body part 161 of the rotary clamping device 160 The tension member is inserted into the PSC structure so that the clamping device 160 is mounted by means of an elastic spring 153, or the jacking load generated when inserted into the sheath is not directly transmitted to the tension member 110. How to. 제 1항에 있어서,
상기 (a) 단계의 1다발의 긴장재(110)는,
다수의 긴장재(110)를 동일한 길이로 절단한 후, 마킹의 방법으로 식별수단(120)을 이용하여 각각의 긴장재(110)를 서로 식별할 수 있도록 한 후, 서로 꼬이지 않도록 간격유지재(130)를 1다발의 긴장재(110)의 양 단부에 삽입시켜 설치하는 PSC구조물에 긴장재를 삽입하는 방법.The method of claim 1,
The tension member 110 of one bundle of step (a),
After cutting a plurality of tension members 110 to the same length, by using the identification means 120 in a marking method, each tension member 110 can be identified from each other, and then the gap maintaining member 130 so as not to twist each other. A method of inserting a tension member into the PSC structure to be installed by inserting it into both ends of the tension member 110 of one bundle. 제 1항에 있어서,
상기 (c) 단계의 회전체결식 클램핑장치(160)는
러그(150)에 결속된 고리부가 형성되어, 상기 고리부를 통해 1다발의 긴장재(110)를 PSC구조물(100)의 시점부와 종점부로 잭킹하기 위한 쟁킹용 홀더로서, 러그(150)의 외측 원형링부(151) 외주면에 형성된 나사체결부에 회전체결되도록 하게 되며, 상기 반구형 소켓몸통부(161)에는 고리부가 일체로 형성된 것을 이용하는 PSC구조물에 긴장재를 삽입하는 방법.The method of claim 1,
The rotary clamping device 160 of step (c)
A ring portion bound to the lug 150 is formed, and as a holder for the panning for jacking a bundle of tension members 110 to the starting and ending points of the PSC structure 100 through the ring portion, the outer circle of the lug 150 A method of inserting a tension member into a PSC structure using that the ring part 151 is rotated to a screw fastening part formed on the outer circumferential surface of the ring part 151, and a ring part is integrally formed in the hemispherical socket body part 161. a) 1다발의 긴장재(110)를 구비하는 단계; (b) 상기 1다발의 긴장재(110)의 단부에 러그(150)를 설치하는 단계; (c) 상기 러그(150)에 고리부가 형성된 회전체결식 클램핑장치(160)를 설치하는 단계; (d) PSC구조물(100)의 쉬스(111)의 시점부로부터 종점부에 유도용 강연선(112) 삽입하는 단계; (e) 상기 쉬스(111)의 시점부에서 회전체결식 클램핑장치(160)의 고리부에 유도용 강연선(112)을 연결하여, 쉬스(111)의 종점부에서 잭킹하는 단계; (f) 쉬스(111)의 시점부와 종점부에는 정착장치(170)가 설치되어 있어, 긴장재(110)를 정착장치(170)를 관통하여 설치한 상태에서 긴장 및 정착이 가능하도록 하는 단계;를 포함하며,
상기 (b) 단계의 러그(150)는, 외측 원형링부(151) 내측에 직경만 달리하는 내측 원형링부(152)가 설치되어 있으며, 상기 외측 원형링부(151)와 내측 원형링부(151) 사이는 탄성스프링(153)으로 서로 결속된 것으로서, 1다발의 긴장재(110)를 탄성을 가진 내측 원형링부(152)에 간단하게 끼워 설치할 수 있도록 하고, 외측 원형링부(151)는 회전체결식 클램핑장치(160)의 반구형 소켓몸통부(161)가 회전 체결되도록 하여, 탄성스프링(153)에 의하여 회전체결식 클램핑장치(160)를 장착하거나, 쉬스에 삽입할 때 발생하는 잭킹 하중이 긴장재(110)에 직접 전달되지 않도록 하는 PSC구조물에 긴장재를 삽입하는 방법에 의하여 제작된 PSC구조물.

a) providing a tension member 110 of one bundle; (b) installing a lug 150 at the end of the one bundle of tension members 110; (c) installing a rotatable clamping device 160 in which a ring portion is formed on the lug 150; (d) inserting an induction strand 112 from the starting point to the end point of the sheath 111 of the PSC structure 100; (e) connecting the guiding strand 112 to the ring portion of the rotating clamping device 160 at the starting point of the sheath 111, and jacking at the end of the sheath 111; (f) a fixing device 170 is installed at the start and end portions of the sheath 111, so that tension and fixation are possible in a state in which the tension member 110 is installed through the fixing device 170; Includes,
In the lug 150 of step (b), an inner circular ring portion 152 having only a different diameter is installed inside the outer circular ring portion 151, and between the outer circular ring portion 151 and the inner circular ring portion 151 Is bound to each other by an elastic spring 153, so that one bundle of tension members 110 can be simply fitted and installed in the elastic inner circular ring part 152, and the outer circular ring part 151 is a rotary clamping device The hemispherical socket body portion 161 of the 160 is rotated and fastened, so that the rotating clamping device 160 is mounted by the elastic spring 153, or the jacking load generated when inserted into the sheath is applied to the tension member 110 A PSC structure manufactured by inserting a tension member into a PSC structure that prevents it from being transmitted directly to the PSC structure.

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