KR20040074411A - Bridge for prestressed concrete beam joint - Google Patents

Bridge for prestressed concrete beam joint Download PDF

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Publication number
KR20040074411A
KR20040074411A KR1020030010035A KR20030010035A KR20040074411A KR 20040074411 A KR20040074411 A KR 20040074411A KR 1020030010035 A KR1020030010035 A KR 1020030010035A KR 20030010035 A KR20030010035 A KR 20030010035A KR 20040074411 A KR20040074411 A KR 20040074411A
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South Korea
Prior art keywords
plate
psc
psc beam
vertical plate
upper connecting
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KR1020030010035A
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Korean (ko)
Inventor
안승우
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주식회사 제일엔지니어링
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Priority to KR1020030010035A priority Critical patent/KR20040074411A/en
Publication of KR20040074411A publication Critical patent/KR20040074411A/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • 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
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/10—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal prestressed
    • 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

Abstract

PURPOSE: A PSC beam coupler of a bridge is provided to improve load carrying capacity by securing structural stability. CONSTITUTION: The PSC beam coupler(10) of a bridge comprises an upper connecting plate(11) fixed on both upper parts of each PSC beam(20) using an anchor bolt(30) to connect PSC beams(20) mutually, then to reduce positive moment by re-distributing moment, a vertical plate(12) located between PSC beams(20) and welded perpendicularly on the lower middle part of the upper connecting plate(11) to prevent the scout according to the insufficient stiffness of the upper connecting plate(11), a lower support plate(13) adhered closely to both lower parts of the PSC beam(20) and welded perpendicularly to the vertical plate(12) to hold up both ends of each PSC beam(20), and a stiffening plate welded to be unified with the upper connecting plate(11), the lower support plate(13) and the vertical plate(12) to be located on both sides of the vertical plate(12) to prevent the scout of the vertical plate(12).

Description

교량의 피에스씨빔 연결이음구 및 그 구조{Bridge for prestressed concrete beam joint}Bridge for prestressed concrete beam joint}

본 발명은 교량의 psc빔(prestressed concrete beam)에 관한 것으로, 더 상세히는 각 교각 지점부에 연속 연결되는 단순보의 각 psc빔사이를 상호 일체화되게 연결하여 모멘트 재분배를 통한 정모멘트의 감소로 구조적 안정성을 확보하여 내하력을 향상시키도록 한 교량의 psc빔 연결이음구 및 그 구조에 관한 것이다.The present invention relates to a psc beam of a bridge (prestressed concrete beam), and more specifically, to each other integrally connected between each of the psc beams of a simple beam connected to each pier point part structurally by reducing the moment by redistributing moment The present invention relates to a psc beam connection joint and a structure of a bridge for ensuring stability and improving load capacity.

일반적으로 교량이라 함은 도로부와 접속되어 차량통행을 가능하게 하는 구조물로서, 교량의 구성을 크게 나뉘어 보면 차량하중(활하중)을 하부구조로 전달시키는 상부구조물이 존재하며 교량이 도로와 접속되는 위치에서 상부구조물을 지지하는 교대와,교대중간에 위치하여 상부구조물을 지지하고 하중을 기초지반에 전하게 되는 교각으로 이루어져 하천, 해수면, 골, 철도들과 입체적으로 교차하는 교통시설로 이용되고 있다.In general, a bridge is a structure that allows traffic to be connected to a road part, and when the structure of a bridge is largely divided, there is an upper structure that transmits a vehicle load (live load) to an underlying structure. It is used as a transportation facility that intersects with rivers, sea level, valleys, and railroads, consisting of shifts that support upper structures and bridges located in the middle of the shifts to support the upper structures and transfer loads to the foundation.

이러한 교량의 시공은 다수의 교각으로 수평방향의 psc빔의 하중을 받치도록 하고, 그 위에 거푸집으로 구속한 뒤 콘크리트를 타설하여 상부구조물이 형성되도록 한다.The construction of such bridges is to support the load of the horizontal psc beam in a plurality of bridges, restrained by the formwork on it and then cast concrete to form the superstructure.

따라서 psc빔 교량은 그 시공성과 경제성이 우수한 관계로 교량시공의 대부분을 차지하고 있다. 현재는 이러한 psc빔 교량을 시공함에 있어 대부분의 상부구조물을 연속화하여 시공하고 있으며 psc빔은 거의 모두 표준도면에 의하여 설계 제작되고 있다.Therefore, the psc beam bridge occupies most of the bridge construction because of its excellent construction and economic feasibility. Currently, most of the superstructures are constructed in the construction of such a psc beam bridge, and almost all of the psc beams are designed and manufactured according to standard drawings.

그러나 교각 상부에서의 각 psc빔 상호간은 설정된 간격을 두고 벌어져 있어 체결은 이루어지지 않고 있다. 따라서 각 psc빔의 양단은 단순히 교각 상부에 설치된 교좌장치에 의하여 받쳐진 상태로 있으므로 psc빔은 단순보의 형태로서 차량의 주행기간에 따라 수축 및 팽창을 하면서 정모멘트의 증가로 구조적 안정성이 떨어져 내하력이 저하되는 문제점이 있으며, 이로인해 콘크리트타설 및 아스콘포장된 상부구조물이 균열을 일으키는 원인이 되는 문제점이 있었다.However, the psc beams in the upper part of the piers are spaced apart at set intervals, and thus no fastening is performed. Therefore, since both ends of each psc beam are simply supported by a bridge device installed on the upper part of the piers, the psc beam is a simple beam, which contracts and expands according to the driving period of the vehicle, and the structural momentum decreases due to the increase of the static moment. There is a problem that is deteriorated, thereby causing a concrete cast and ascon paved superstructure causes a crack.

이러한 문제점을 해소하고자 선출원(등록실용신안 제20-174516호, 등록실용신안 제20-242363호)된 것중에서 전자의 경우 각 psc빔단부 상단에 강재 브라켓트를 매립한 뒤 그 각 psc빔의 양측 브라켓트를 다수의 강봉으로 연결하고, 각 psc빔사이를 테프론테이프로 채워서 각 psc빔사이를 상호 일체화 시켜 연속빔형태로 교량을 시공하였으나, psc빔의 제작시 양단에 브라켓트를 미리 매립하여 설치하여야 되는 문제점이 있고, 상부구조물로의 장기간 차량통행시 활하중이 다수의 각 강봉으로 전달되어 좌굴이 발생하여 상부구조물의 도로형태를 유지할 수 없는 문제점이 있었다.In the former case, the steel bracket is embedded in the upper end of each psc beam end, and the brackets on both sides of each psc beam are registered in the former application (Registration Utility Model No. 20-174516, Registration Utility Model No. 20-242363). Is connected to a number of steel rods, each psc beam is filled with teflon tape and the psc beams are integrated with each other to construct a bridge in the form of a continuous beam. However, when manufacturing a psc beam, brackets must be embedded at both ends in advance. There is a problem that the live load is transmitted to a plurality of steel rods during long-term vehicle traffic to the upper structure, so that buckling occurs and the road structure of the upper structure cannot be maintained.

또, 후자의 경우 각 psc빔사이에 철근을 각각 매입한 뒤 콘크리트를 타설하여 일체화시켜 psc빔의 연속화가 이루어 지도록 하였으나, 이는 각 psc빔간에 직접적인 연결구조가 마련되지 않아 psc빔의 연속화에 따른 연결접촉부의 구조적 안정성이 결여되는 문제점이 있었다.In addition, in the latter case, reinforcing bars are embedded between each psc beam, and then concrete is poured to integrate the psc beams. However, since there is no direct connection structure between the psc beams, the psc beams are connected to each other. There was a problem of lack of structural stability of the contact portion.

본발명은 종래의 문제점을 해결하고자 하는 것으로, 각 psc빔의 양단 상부에 앙카보울트로 고정되어 psc빔 상호간을 일체로 연결하여 모멘트 재분배를 통한 정모멘트를 감소시키도록 하는 상부연결판과, psc빔사이에 위치되어 상부연결판의 강성부족에 따른 좌굴을 방지하도록 상부연결판의 하부 중간에 직각으로 용착되는 수직판과, psc빔의 양단 저면에 밀착되어 상부연결판과 함께 각 psc빔의 양단을 잡아주도록 수직판과 직각으로 용착되는 하부지지판과, 수직판의 양측면에 위치되게 상부연결판 및 하부지지판과 수직판에 일체화되도록 각각 다수 용착되어 수직판의 좌굴을 방지하는 보강판으로 연결이음구를 구성하고, 그 후 각 psc빔의 양측면에 측면판을 밀착고정시킨 뒤 psc빔사이에 에폭시를 채워서 교량의 피에스씨빔 연결이음구조를 구성하여 된 것으로, 각 교각 지점부에 연속 연결되는 단순보의 각 psc빔사이를 상호 일체화되게 연결하여 주므로서 모멘트 재분배를 통한 정모멘트의 감소로 구조적 안정성을 확보하여 내하력을 향상시키도록 하는 데 그 목적이 있다.The present invention is to solve the conventional problems, the upper connection plate is fixed to the anchor bolts on both ends of each psc beam to connect the psc beams integrally to reduce the positive moment through the moment redistribution, and the psc beam A vertical plate welded at right angles to the lower middle of the upper connecting plate to prevent buckling due to the lack of rigidity of the upper connecting plate, and adhered to the bottom of both ends of the psc beam, and connected to both ends of each psc beam together with the upper connecting plate. The joint is composed of a lower support plate welded at right angles to the vertical plate to hold it, and a reinforcement plate which is welded to each other so as to be integral with the upper connecting plate and the lower support plate and the vertical plate to be positioned on both sides of the vertical plate to prevent buckling of the vertical plate. After that, the side plates are fixed to both sides of each psc beam and the epoxy is sandwiched between the psc beams to form the bridge beam structure of the bridge. The purpose of the present invention is to secure structural stability by reducing static moment through moment redistribution by connecting the psc beams of simple beams connected to each pier point to be integrated with each other. .

도1은 본 발명 연결이음구의 사시도1 is a perspective view of the connection joint of the present invention

도2(a)(b)(c)는 본 발명 연결이음구조의 이음과정도Figure 2 (a) (b) (c) is a joint process diagram of the present invention connection joint structure

도3은 종래와 본 발명의 모멘트 재분배 형상도Figure 3 is a moment redistribution shape of the prior art and the present invention

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10;연결이음구 11;상부연결판 12;수직판10; connecting joint 11; top connecting plate 12; vertical plate

13;하부지지판 14;보강판 20;psc빔13; lower support plate 14; reinforcement plate 20; psc beam

30;앙카보울트 40;측면판 41;앙카핀30; anchor bolt 40; side plate 41; anchor pin

이하 본 발명을 첨부도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 교량의 psc빔 연결이음구(10)를 도시한 것으로, 각 psc빔 (20)의 양단 상부에 앙카보울트(30)로 고정되어 psc빔(20) 상호간을 일체로 연결하여 모멘트 재분배를 통한 정모멘트를 감소시키도록 하는 상부연결판(11)과, psc빔 (20)사이에 위치되어 상부연결판(11)의 강성부족에 따른 좌굴을 방지하도록 상부연결판(11)의 하부 중간에 직각으로 용착되는 수직판(12)과, psc빔(20)의 양단 저면에 밀착되어 상부연결판(11)과 함께 각 psc빔(20)의 양단을 잡아주도록 수직판(12)과 직각으로 용착되는 하부지지판(13)으로 구성된다.1 illustrates a psc beam connection fitting 10 of a bridge of the present invention, and is fixed by anchor bolts 30 at both ends of each psc beam 20 to connect the psc beams 20 integrally to each other. The upper connecting plate 11 to reduce the static moment through redistribution, and the lower portion of the upper connecting plate 11 between the psc beam 20 to prevent buckling due to the lack of rigidity of the upper connecting plate 11 The vertical plate 12 welded at right angles to the middle and the bottom of both ends of the psc beam 20 is in close contact with the vertical plate 12 to hold both ends of each psc beam 20 together with the upper connecting plate 11. It consists of a lower support plate 13 which is welded to.

상기 상부연결판(11)에는 psc빔(20)과 일체화 되게 앙카보울트(30)를 설치할 수 있도록 다수의 보울트구멍(11a)이 형성되어 있다.A plurality of bolt holes 11a are formed in the upper connection plate 11 to install the anchor bolt 30 to be integrated with the psc beam 20.

또한 상부연결판(11), 하부지지판(13)의 규격은 동일한 크기로 제작하되 psc빔(20)의 폭과 동일한 규격으로 제작하며, 수직판(12)은 psc빔(20)의 폭과 높이가 일치되도록 제작하고, 보강판(14)은 수직판(12)의 높이와 일치되게 제작하되 폭은 상부연결판(11) 및 하부지지판(13)의 규격보다 작게 제작하면 된다.In addition, the size of the upper connecting plate 11, the lower support plate 13 is made of the same size but the same size as the width of the psc beam 20, the vertical plate 12 is the width and height of the psc beam 20 Is made to match, the reinforcing plate 14 is made to match the height of the vertical plate 12, but the width is smaller than the specifications of the upper connecting plate 11 and the lower support plate 13.

또한 상기 수직판(12)의 양측면에 위치되게 상부연결판(11) 및 하부지지판 (13)과 수직판(12)에 일체화되도록 각각 다수 용착되는 보강판(14)을 포함하여서, 상기 수직판(12)의 좌굴을 방지하여 주도록 함이 바람직하다.In addition, the vertical plate 12 includes a reinforcing plate 14 which is welded to each other so as to be integrated on the upper connecting plate 11 and the lower support plate 13 and the vertical plate 12 so as to be located on both sides of the vertical plate 12. It is preferable to prevent buckling of 12).

이와같이 구성된 연결이음구(10)를 이용하여 양측 psc빔(20)을 연결하고자 하는 경우 도 2의(a)에 도시한 바와같이 교각(60)의 상부에 설치된 양측 교좌장치 (70)에 각 psc빔(20)의 단부를 올려 놓은 뒤 도 2의(b)와 같이 연결이음구(10)의 상부연결판(11)과 하부지지판(13)이 psc빔(20)의 단부 상면 및 저면에 각각 밀착되게 끼우게 되면 수직판(12)과 보강판(14)은 양측 psc빔(20)사이에 위치하게 되며, 상부연결판(11)에 형성된 다수의 보울트구멍(11a)을 통해 앙카보울트(30)로 도 2의(c)와 같이 양측 psc빔(20)에 매립시켜 양측 psc빔(20)이 상호 일체로 연결되게 하며, 이러한 방법으로 각 psc빔(20)을 연속연결하면 된다.In the case of connecting both psc beams 20 using the connection fittings 10 configured as described above, each psc beam is provided on both side scaffolding devices 70 installed on the top of the piers 60 as shown in FIG. After the end of the 20 is placed, the upper connecting plate 11 and the lower support plate 13 of the connecting fitting 10 are closely attached to the upper and lower ends of the psc beam 20 as shown in FIG. When fitted, the vertical plate 12 and the reinforcement plate 14 are positioned between the psc beams 20 on both sides, and are connected to the anchor bolt 30 through a plurality of bolt holes 11a formed in the upper connecting plate 11. As shown in FIG. 2C, both psc beams 20 are embedded in the two psc beams 20 so as to be integrally connected to each other. In this manner, each psc beam 20 may be continuously connected.

그 후 각 psc빔(20)사이에 위치되게 양측면에 측면판(40)을 밀착고정시킨 뒤 psc빔(20)사이에 에폭시를 채워서 교량의 피에스씨빔 연결이음구조를 구성한다. 이때 측면판(40)은 psc빔(20)사이의 공간을 차단할 수 있을 정도의 규격으로 제작하며, 측면판(40)이 에폭시()에 의해서 psc빔(20) 및 연결이음구(10)와 일체화 되도록 psc빔(20)사이의 공간으로 돌출되게 측면판(40)에 다수의 앙카핀(41)을 종방향으로 용착하고, 상호 대향되는 양측 측면판(40)의 앙카핀(41)이 상호 대칭되도록 하거나 상호 엇갈리게 설치되어 있어도 무방하다.Thereafter, the side plates 40 are tightly fixed to both sides to be positioned between the psc beams 20, and the psc beams 20 are filled with epoxy to form a bridge PS beam connecting structure. At this time, the side plate 40 is manufactured in a standard enough to block the space between the psc beams 20, the side plate 40 is integrated with the psc beams 20 and the connection joint 10 by the epoxy (). A plurality of anchor pins 41 are longitudinally welded to the side plates 40 so as to protrude into the spaces between the psc beams 20, and the anchor pins 41 of the opposite side plates 40 are mutually symmetrical. They may be installed or cross each other.

이때, 측면판(40)의 상단부에 구멍을 형성하거나 측면판(40)의 높이를 작게 제작하여 psc빔(20)사이로 에폭시의 충진이 용이하도록 하면 된다.In this case, a hole may be formed in the upper end of the side plate 40 or the height of the side plate 40 may be made small to facilitate the filling of the epoxy between the psc beams 20.

이와같은 방법으로 각 교각 지점부에 단순보의 각 psc빔사이를 상호 일체화되게 연속 연결하여 주므로서 도3에 도시한 바와같이 모멘트 재분배를 통한 정모멘트의 감소로 구조적 안정성을 확보하여 내하력을 향상시키게 된다.In this way, the psc beams of the simple beams are connected to each bridge point in a continuous manner so as to integrate with each other. As shown in FIG. 3, the structural moment is secured by reducing the static moment through the moment redistribution to improve the load capacity. do.

이와같이 본 발명은 각 교각 지점부에 연속 연결되는 단순보의 각 psc빔사이를 상호 일체화되게 연결하여 주므로서 모멘트 재분배를 통한 정모멘트의 감소로 구조적 안정성을 확보하여 내하력을 향상시킬 수가 있는 효과가 있다.As such, the present invention has the effect of securing structural stability by reducing the static moment through moment redistribution by connecting the psc beams of the simple beams continuously connected to each pier point to secure the structural moment. .

Claims (3)

각 psc빔(20)의 양단 상부에 앙카보울트(30)로 고정되어 psc빔(20) 상호간을 일체로 연결하여 모멘트 재분배를 통한 정모멘트를 감소시키도록 하는 상부연결판 (11)과, psc빔(20)사이에 위치되어 상부연결판(11)의 강성부족에 따른 좌굴을 방지하도록 상부연결판(11)의 하부 중간에 직각으로 용착되는 수직판(12)과, psc빔(20)의 양단 저면에 밀착되어 상부연결판(11)과 함께 각 psc빔(20)의 양단을 잡아주도록 수직판(12)과 직각으로 용착되는 하부지지판(13)으로 구성됨을 특징으로 하는 psc빔 연결이음구.An upper connection plate 11 and a psc beam fixed to the upper ends of each psc beam 20 by an anchor bolt 30 to integrally connect the psc beams 20 to each other to reduce the positive moment through moment redistribution. Both ends of the psc beam 20 and the vertical plate 12 which is positioned between the 20 and is perpendicularly welded to the lower middle of the upper connecting plate 11 to prevent buckling due to the lack of rigidity of the upper connecting plate 11 A psc beam connection fitting, characterized in that the lower support plate 13 is welded at right angles to the vertical plate 12 to hold both ends of the psc beam 20 together with the upper connecting plate 11 and the upper surface. 제1항에 있어서, 상기 수직판(12)의 양측면에 위치되게 상부연결판(11) 및 하부지지판(13)과 수직판(12)에 일체화되도록 각각 다수 용착되는 보강판(14)을 포함하여서 됨을 특징으로 하는 psc빔 연결이음구.According to claim 1, including a reinforcing plate 14 which is welded to each other so as to be integral to the upper connecting plate 11 and the lower support plate 13 and the vertical plate 12 to be located on both sides of the vertical plate 12 Psc beam connection. 각 psc빔(20)의 양단 상부에 앙카보울트(30)로 고정되어 psc빔(20) 상호간을 일체로 연결하여 모멘트 재분배를 통한 정모멘트를 감소시키도록 하는 상부연결판 (11)과, psc빔(20)사이에 위치되어 상부연결판(11)의 강성부족에 따른 좌굴을 방지하도록 상부연결판(11)의 하부 중간에 직각으로 용착되는 수직판(12)과, psc빔(20)의 양단 저면에 밀착되어 상부연결판(11)과 함께 각 psc빔(20)의 양단을 잡아주도록 수직판(12)과 직각으로 용착되는 하부지지판(13)과, 수직판(12)의 양측면에 위치되게 상부연결판(11) 및 하부지지판(13)과 수직판(12)에 일체화되도록 각각 다수 용착되어 수직판(12)의 좌굴을 방지하는 보강판(14)으로 연결이음구(10)를 구성하고, 그 후 각 psc빔(20)의 양측면에 앙카핀(41)이 내측으로 돌출된 측면판(40)을 밀착고정시킨 뒤 psc빔(20)사이에 에폭시를 채워서 구성한 것을 특징으로 하는 psc빔 연결이음구조.An upper connection plate 11 and a psc beam fixed to the upper ends of each psc beam 20 by an anchor bolt 30 to integrally connect the psc beams 20 to each other to reduce the positive moment through moment redistribution. Both ends of the psc beam 20 and the vertical plate 12 which is positioned between the 20 and is perpendicularly welded to the lower middle of the upper connecting plate 11 to prevent buckling due to the lack of rigidity of the upper connecting plate 11 The lower support plate 13 is welded at right angles to the vertical plate 12 to hold both ends of each psc beam 20 together with the upper connection plate 11, and to be located on both sides of the vertical plate 12. The connecting joint 10 is formed of a reinforcing plate 14 which is welded to the upper connecting plate 11 and the lower support plate 13 and the vertical plate 12 to prevent the buckling of the vertical plate 12, respectively. Thereafter, the side plates 40 with the anchor pins 41 projecting inwardly are fixed to both sides of each psc beam 20, and then epoxy is filled between the psc beams 20. Psc beam connection joint structure, characterized in that the configuration.
KR1020030010035A 2003-02-18 2003-02-18 Bridge for prestressed concrete beam joint KR20040074411A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111648227A (en) * 2020-07-22 2020-09-11 洛阳三信石化设备有限公司 Bridge girder steel structure and welding assembly method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111648227A (en) * 2020-07-22 2020-09-11 洛阳三信石化设备有限公司 Bridge girder steel structure and welding assembly method thereof

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