KR20050064049A - Method for connecting continuously p.s.c-ibeam by steel bracket and its structure - Google Patents
Method for connecting continuously p.s.c-ibeam by steel bracket and its structure Download PDFInfo
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- KR20050064049A KR20050064049A KR1020030095319A KR20030095319A KR20050064049A KR 20050064049 A KR20050064049 A KR 20050064049A KR 1020030095319 A KR1020030095319 A KR 1020030095319A KR 20030095319 A KR20030095319 A KR 20030095319A KR 20050064049 A KR20050064049 A KR 20050064049A
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- 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
- E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
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- 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
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- 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
- E01D2101/285—Composite prestressed concrete-metal
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- Bridges Or Land Bridges (AREA)
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Abstract
본 발명은 스틸브라켓에 의한 피.에스.씨-I빔의 연속결합방법 및 구조에 관한 것으로서 종래에는 두 개의 빔을 구조적으로 연속화 시키지 못하고 단순보구조계로 각 경간의 빔을 가설한 후 슬래브만 연속되도록 시공하거나 각 빔과빔 사이에 콘크리트를 재차 충진시켜 연결한 후 슬래브가 연속되도록 시공하므로서 차량의 주행성은 상당히 양호하나, 완전한 연속구조계의 실현이 불가능하여 각 빔사이의 충진콘크리트뿐아니라 상부 슬래브콘크리트 또한 충격과 피로에 의한 균열이 점진적으로 발생하여 구조적 안정성과 사용성이 저하되고 있다.The present invention relates to a method and structure of continuous coupling of P.S.C-I beams by steel brackets. In the related art, two beams cannot be structurally continuous, but the slab is continuous after constructing beams of each span with a simple beam structure system. The construction of the vehicle is very good by constructing it or re-filling the concrete between each beam and the beam, and then constructing the slab continuously.However, it is impossible to realize the complete continuous structure system. In addition, cracks due to impact and fatigue are gradually generated, resulting in deterioration of structural stability and usability.
본 발명은 예시도 8과 같이 피.에스.씨-I빔(1)의 지점부에 단부정착판(4)과 스틸브라켓(6)을 다수의 앵커보울트(7)와 너트(13)로 일체가 되도록하여 피.에스.씨-I빔(1)을 제작한 후 교각(2)위에 미리 설치된 교량받침(3) 및 하부연결판(8)위에 가설하고, 스틸브라켓(6)의 하단을 하부연결판(8)과 용접하여 결합하고 스틸브라켓(6)의 양측에는 브라켓 연결판(9)을 덧대어 보울트(10)와 너트(10')로 고정하며, 단부정착판(4)의 상단에는 상부연결브라켓(11)을 설치하고 상부연결PC강봉(12)을 상부연결브라켓(11)에 지지시켜 너트(21)로서 고정함과 동시에 상부PC스트랜드(20)를 추가로 배치한 후 각 빔과빔 사이의 충진콘크리트(15)를 타설하여 2경간 이상 다수 경간의 피.에스.씨-I빔을 완전하게 연속결합시키는 구조 및 방법이다.The present invention integrates the end fixing plate 4 and the steel bracket 6 with a plurality of anchor bolts 7 and nuts 13 at the point of the P.S.C-I beam 1 as shown in FIG. After making the P.S.C-I beam (1), the construction is installed on the bridge support (3) and the lower connecting plate (8) pre-installed on the bridge (2), and the lower end of the steel bracket (6) Joining by welding with the connecting plate (8), and by fixing the bolt connecting plate (9) on both sides of the steel bracket (6) with the bolt 10 and the nut (10 '), the upper end of the fixing plate (4) After installing the upper connecting bracket (11) and supporting the upper connecting PC steel rod 12 to the upper connecting bracket (11) to fix it as a nut (21) and at the same time to further arrange the upper PC strand (20) after each beam and It is a structure and method for completely filling the P.S.C-I beam of two or more spans by pouring the filling concrete 15 between beams.
Description
본 발명은 피.에스.씨-I빔(P.S.C-I Beam)의 연속결합방법 및 구조에 관한 것으로서, 더욱 상세히 설명하면 빔과빔 사이를 앵커보울트와 너트로 고정된 단부정착판과 스틸브라켓및 상부PC강봉 또는 상부PC스트랜드에 의하여 견고하게 연결함으로서 지상에서 독립적으로 제작된 각 경간의 피.에스.씨-I빔을 2경간 이상의 다경간에 걸쳐서 보다 효과적으로 연속결합될 수 있도록 한 것이다.The present invention relates to a continuous coupling method and structure of the PSC-I beam (PSC-I Beam), more specifically, the end fixing plate and the steel bracket and the anchor bolt and the nut fixed between the beam and the beam and By firmly connecting the upper PC steel bar or the upper PC strand, it is possible to effectively combine the P.S.C-I beams of each span independently manufactured on the ground over more than two spans.
종래에는 예시도 1a와 같이 2경간 이상의 피.에스.씨-I빔교를 가설함에 있어서 피.에스.씨-I빔(1)을 지상에서 각각 독립적으로 미리 제작하여 각 경간에 걸쳐 단순보구조계가 되도록 독립적으로 가설한 후 각 경간의 I빔을 구조적으로 완전하게 연결하지 않고 I빔위의 슬래브콘크리트(16)만 연속결합하여 시공하거나, 또는 도 1b와 같이 각 경간의 I빔(1)을 지상에서 미리 제작할 때 철근(17)을 각 빔의 단부쪽으로 미리 노출시켜 각각의 교각(2)위에 가설한 후 미리 노출된 철근(17)을 겹이음하고 지점부(4)의 빔과빔 사이에 재차 콘크리트를 충진하여 연결시킨 후 I빔위의 슬래브콘크리트(16)를 연속결합하여 시공하는 방법들이 있다.Conventionally, as shown in FIG. 1A, in constructing a P.S.C-I beam bridge having two or more spans, the P.S.C-I beam 1 is independently prepared in advance on the ground, and a simple beam structure is provided over each span. After constructing them independently, construct them by continuously combining only the slab concrete 16 on the I beams without structurally connecting the I beams of each span, or as shown in FIG. When prefabricated, the rebar 17 is pre-exposed to the end of each beam to be hypothesized on each pier 2, and then the pre-exposed rebar 17 is overlapped, and the concrete is again between the beam of the point 4 and the beam. After filling and connecting the slab concrete 16 on the I beam there is a method of construction by combining.
위와 같은 각각의 방법은 모두 지상에서 각각 독립적으로 제작된 피.에스.씨-I빔이 완전하게 일체화되어 구조적으로 연속된 것이 아니므로 각 교각(2)위의 교량받침(3)은 각각의 빔을 독립적으로 지지하여야 하는바 각 교각위에는 반드시 2개의 교좌장치(3)를 사용하여야만하며, 또한 빔과빔 사이에 재차 충진된 콘크리트(15)는 그 경계면에서 완전하게 부착되지 않고 단절되어 교량위에 차량이 통과할 때마다 지속적으로 발생되는 진동하중에 의하여 균열이 점진적으로 발생될 수 있으며 I빔위의 슬래브콘크리트(16) 또한 지점부의 부모멘트에 의하여 균열이 발생되는 것은 필연적이다.Each of the above methods is independent of the P.S.C-I beams, which are independently manufactured on the ground, and thus are not structurally continuous. Therefore, the bridge supports (3) on each bridge (2) are each beam. Each bridge pier must use two bridge arrangements (3), and the concrete (15) refilled between the beams and beams is not completely attached at the interface and is cut off. Cracking may occur gradually due to the vibration load continuously generated each time it passes, and it is inevitable that the slab concrete 16 on the I-beam also cracks due to the parent part of the point.
또한 위와 같은 이유로 각 교각 위에서 2개의 교좌장치(3)를 사용하므로 인하여, 활하중에 의한 반력을 교각(2)위의 두 개의 교좌장치(3)가 절반씩 나누어 받지 못하고 두 개의 교좌장치(3)중에 한 개의 교좌장치(3)는 부반력이 발생하고 다른 한 개의 교좌장치(3)에는 과도하게 반력이 작용하여 교좌장치(3)의 용량이 과대해지는 결점이 있다.In addition, since two bridge devices (3) are used on each bridge for the same reason as above, two bridge devices (3) cannot be divided by half between two bridge devices (3) on the bridge (2). One of the teaching device 3 has a disadvantage that the reaction force is generated and the other of the teaching device 3 excessively the reaction force acts excessively the capacity of the teaching device (3).
본 발명은 각각의 빔과빔을 연결함에 있어서 종래와 달리 철근(17)이나 콘크리트(15)에만 의존하지 않고 철근이나 콘크리트보다 구조적 내구성이 월등히 우수한 단부정착판 및 스틸브라켓을 브라켓 연결판과 보울트 및 PC강봉등으로 견고하게 결합시켜서 연결부의 구조적 강성을 피.에스.씨-I빔 자체의 강성보다 오히려 더 커지게하여 1개의 교좌장치만을 사용한 상태에서 구조적으로 완전하게 일체화시키고 아울러 상부PC스트랜드를 각 경간에 걸쳐 연속적으로 배치하여 2경간 이상의 연속된 피.에스.씨-I빔교를 가설함에 있어서 그 사용성을 향상시킴은 물론이며 구조적 안전성을 완전하게 하고자 함에 목적이 있다.According to the present invention, in connection with each beam, the end fixing plate and the steel bracket, which are superior in structural durability than the reinforcing bars or concrete, do not rely only on the reinforcing bars 17 or concrete 15, but the bracket connecting plate and the bolt and By firmly coupling with PC steel rods, the structural rigidity of the connection is made larger than the rigidity of the P.S.C-I beam itself. The purpose is to improve the usability and perfect structural safety in constructing two or more continuous P.S.C-I beam bridges by arranging them continuously over the span.
상기 목적을 실현하기 위한 본 발명은 지상에서 각각의 I빔을 독립적으로 제작할 때 상부PC스트랜드를 삽입할 수 있는 쉬스파이프를 예시도 2와 같이 I빔의 콘크리트속에 미리 매립시키고, 각 빔의 연결단부에는 2개의 스틸브라켓을 돌출시킴과 동시에 상부에 쉬스파이프가 관통하는 관통공이 형성된 단부정착판이 I빔의 콘크리트속에 미리 매립된 다수의 앵커보울트와 너트에 의하여 견고하게 부착되도록하여 각각의 교각위에 I빔을 가설한 후 교좌장치위에 미리 설치된 하부연결판과 2개의 스틸브라켓을 용접으로 일체가 되도록 결합하고 각각의 빔과빔 사이의 단부정착판에서 돌출되어 종방향으로 인접한 2개의 스틸브라켓끼리는 브라켓 연결판과 보울트와 너트로서 결합시키고 상부연결PC강봉을 단부정착판 상단에 고정된 상부연결브라켓에 지지시켜 견고하게 연결시킴과 동시에 상부연결쉬스파이프를 조립하여 상부PC스트랜드를 모든 경간에 걸쳐 연속되도록 삽입하여 배치한 후 각각의 빔과빔 사이에 충진콘크리트를 타설한 상태에서 슬래브를 연속하여 시공하도록 한 것이다.The present invention for realizing the above object is previously embedded in the concrete of the I-beams in the concrete of the I-beams, as shown in Figure 2 when inserting the upper PC strand when each I-beams independently on the ground, connecting ends of each beam An end fixing plate having a through hole through which a sheath pipe penetrates at the same time as protruding two steel brackets is securely attached to the beam by a plurality of anchor bolts and nuts which are pre-embedded in the concrete of the I beam. After installation, the lower connecting plate and the two steel brackets pre-installed on the staircase are joined together by welding, and the two steel brackets longitudinally adjacent to each other protrude from the end fixing plate between the beams and the beams. And bolt as the nut and the upper connection PC steel rod is supported on the upper connection bracket fixed to the top of the end fixing plate. At the same time, the upper connection sheath pipe is assembled and the upper PC strand is inserted and arranged continuously over all spans, and the slab is continuously installed while filling concrete is placed between each beam. will be.
본 발명은 예시도 2 및 예시도 3과 같이 미리 지상에서 피.에스.씨-I빔(1)을 제작할 때I빔의 콘크리트속에는 상부PC스트랜드(20)를 삽입할 수 있도록 쉬스파이프(18)를 미리 매립하고 빔의 일측 또는 양측단부에 단부정착판(4)이 I빔의 콘크리트속에 미리 매립된 앵커보울트(7)와 너트(13)에 의하여 피.에스.씨-I빔(1)의 단부콘크리트와 완전하게 결합될 수 있도록 하여 피.에스.씨-I빔을 제작한다. 이때 단부정착판(4)에는 2개의 스틸브라켓(6)이 단부정착판(4)과의 용접 결합에 의하여 돌출되고 그 상부 중앙에는 쉬스파이프(18)가 관통할 수 있는 관통공(5)이 형성되어야 하며, 스틸브라켓(6)에는 그 연결판(9)에 의하여 보울트(10)와 너트(10')가 체결될 수 있도록 미리 다수개의 보울트구멍이 천공 되어있어야 한다.In the present invention, when manufacturing the P.S.C-I beam (1) in the ground as shown in Figure 2 and Figure 3 in advance, the sheath pipe 18 to insert the upper PC strand 20 in the concrete of the I beam. Of the P.S.C-I beam (1) by the anchor bolt (7) and the nut (13), which is pre-filled and the end fixing plate (4) is prefilled in the concrete of the I beam at one or both ends of the beam. It can be combined with the end concrete to produce a P.S.C-I beam. At this time, the end fixing plate 4 is provided with two steel brackets 6 protruding by welding coupling with the end fixing plate 4 and a through hole 5 through which the sheath pipe 18 can penetrate. It is to be formed, a number of bolt holes should be drilled in advance so that the bolt 10 and the nut 10 'can be fastened by the connecting plate 9 to the steel bracket 6.
또한 예시도 4a와 같이 각각의 교각(2)위에는 미리 1개의 교좌장치(3)가 설치되고 그 교좌장치(3) 양쪽으로 I빔의 자중을 임시로 지지할 수 있는 임시받침(14)을 설치함과 동시에 하부연결판(8)을 교좌장치(3)위에 미리 고정되도록 설치한 후, 지상에서 미리 제작된 각각의 빔(1)을 임시받침(14) 위에 지지되도록 설치하되 스틸브라켓(6)의 아래부분이 하부연결판(8)위에 완전하게 밀착되도록하여 용접하므로서 스틸브라켓(6)과 하부연결판(8)을 완전하게 결합시킨다.In addition, as shown in FIG. 4A, one bridge device 3 is installed on each bridge 2 in advance, and a temporary support 14 is installed to temporarily support the weight of the I beam on both sides of the bridge device 3. At the same time, the lower connecting plate (8) is installed to be fixed in advance on the seating device (3), and then each beam (1) prefabricated on the ground is installed so as to be supported on the temporary support (14), but the steel bracket (6) The lower part of the steel plate 6 and the lower connecting plate 8 is completely coupled by welding so as to be completely in contact with the lower connecting plate (8).
위와 같이 1차적으로 스틸브라켓(6)과 하부연결판(8)을 용접에 의하여 완전하게 결합시킨 후 예시도 5와 같이 단부정착판(4)의 중앙상부에 형성된 관통공(5)을 통하여 종방향으로 인접한 2개 빔속에 미리 매립된 쉬스파이프(18)끼리 관통하여 연결될 수 있도록하는 연결쉬스파이프(19)를 설치하고 각 빔사이에서 2개의 돌출된 스틸브라켓(6)은 각 2장의 브라켓 연결판(9)을 양측에 덧대어 연결보울트(10)와 너트(10')로서 고정시켜서 연속되도록 결합한다.First, as described above, the steel bracket 6 and the lower connecting plate 8 are completely coupled by welding, and then through the through hole 5 formed in the center of the end fixing plate 4 as shown in FIG. In the two adjacent beams in the direction of the pipe sheath pipes 18, which are embedded in the connection between the pipes 19 are installed so that the two protruding steel brackets 6 between each beam connecting two brackets The plate 9 is padded on both sides to fix the connecting bolt 10 and the nut 10 'so as to be continuous.
이 때 각각의 브라켓 연결판(9)에는 스틸브라켓(6)의 보울트구멍과 일치하도록 미리 다수개의 보울트구멍을 천공하여 둔다.At this time, each of the bracket connecting plates 9 drills a plurality of bolt holes in advance so as to coincide with the bolt holes of the steel bracket 6.
위와 같은 과정을 거쳐 각각의 빔과빔 사이는 2개의 스틸브라켓(6)이 브라켓 연결판(9)과 보울트(10)와 너트(10')에 의하여 완전하게 연속결합되고 각 빔사이의 하단부는 스틸브라켓(6)의 하부와 하부이음판(8)과의 용접에 의하여 완전하게 연결결합되는 바, 상단부는 예시도 6a와 같이 스틸브라켓(6)위에 미리 설치된 상부연결브라켓(11)에 지지하여 상부연결PC강봉(12)을 설치한 후 너트(21)로서 고정하여 각 빔 사이의 상단부 또한 하단부와 마찬가지로 결합을 완전하게 한다.Through the above process, the two steel brackets 6 are completely connected by the bracket connecting plate 9, the bolt 10, and the nut 10 'between each beam and the beams, and the lower end between the beams is The lower part of the steel bracket 6 is completely connected by welding with the lower joint plate 8, and the upper end is supported by the upper connection bracket 11 previously installed on the steel bracket 6 as shown in FIG. After installing the upper connection PC steel rod 12 and fixed with a nut 21, the upper end between each beam as well as the lower end to complete the coupling.
이 때 상부연결브라켓(11)은 그 지지판(22)과 함께 스틸브라켓(6)위에 고정된다.At this time, the upper connection bracket 11 is fixed on the steel bracket (6) together with the support plate (22).
예시도 7은 본 발명에 따른 각 빔과빔 사이의 연결쉬스파이프(19)가 각 빔속에 미리 매립된 쉬스파이프(18)를 연속하여 관통하도록 연결시킨 후 그 속에 상부PC스트랜드(20)를 삽입하여 설치한 상태를 나타낸다.7 shows that the connecting sheath pipe 19 between the beams and the beams according to the present invention is continuously connected to the sheath pipes 18 embedded in each beam, and then the upper PC strand 20 is inserted therein. Shows the installed status.
예시도 8은 본 발명의 전체 결합과정을 동시에 표현한 분리사시도로서, 각 빔과빔 사이가 스틸브라켓(6)과 그 연결판(9) 및 하부연결판(8)과 상부연결PC강봉(12) 등에 의하여 완전하게 연속 결합되면, 예시도 9와 같이 각 빔과빔 사이에는 콘크리트를 충진하여 스틸브라켓(6)과 그 연결판(9) 등을 빔의 콘크리트(15)속에 매립시켜 각 경간이 완전하게 연속되도록함과 동시에 임시받침(14)을 제거하여 1개의 교좌장치(3)가 하중을 지지하므로서 완전한 연속구조계의 피.에스.씨-I빔교가 되도록한다.Exemplary Figure 8 is an exploded perspective view representing the entire coupling process of the present invention at the same time, each beam and the beam between the steel bracket (6) and its connecting plate (9) and the lower connecting plate (8) and the upper connecting PC steel bar (12) When completely continuous, such as, Figure 9 is filled with concrete between each beam and the beam as shown in Figure 9 to embed the steel bracket (6) and its connecting plate (9) in the concrete of the beam (15) each span is completely In addition, the temporary support 14 is removed so that one bridge device 3 supports the load, so that the P.S.C-I beam bridge of the complete continuous structure system is supported.
위와 같이 각 빔과빔 사이를 완전하게 연속시켜 결합한 후 임시받침(14)을 제거하여 각 교각마다 1개의 교좌장치(3)로만 지지함에 있어서 각 교각위의 지점이 되는 연속결합부에는 I빔의 연속결합 후 시공되는 슬래브콘크리트(16)의 타설과 아스팔트 포장등으로 인한 사하중에 의한 부모멘트가 1차적으로 발생되며 교량을 완성시킨 후 차량통행으로 인한 활하중에 의한 부모멘트가 2차적으로 발생된다.As described above, after the beams are completely connected to each other, the temporary support 14 is removed to support only one bridge device 3 for each bridge, and thus the continuous coupling portion that becomes the point on each bridge is used for the I beam. Parenting due to dead weight due to placing of slab concrete 16 and asphalt pavement, which are constructed after continuous coupling, is generated firstly, and parenting due to live load due to vehicle traffic is generated secondly after completing the bridge.
본 발명에서는 연결부상단의 상부연결PC강봉(12)만으로 위에서 언급한 사하중과 활하중에 의한 부모멘트에 모두 저항할 수도 있으며, 선택적으로 사하중에 의한 부모멘트는 상부연결PC강봉(12)이 부담하도록 하고 활하중에 의한 부모멘트는 예시도 7과 같이 각 빔과빔 사이의 연결부 상측에 상부PC스트랜드(20)를 별도로 배치하여 저항 하도록하거나, 또는 상부연결PC강봉(12)을 전적으로 배제하고 상부PC스트랜드(20)만으로 사하중과 활하중에 의한 부모멘트에 모두 저항하도록 할 수도 있다. 이 때, 상부PC스트랜드(20)를 배치하기 위하여는 지상에서 각각의 빔을 독립적으로 제작할 때 예시도 2와 같이 쉬스파이프(18)를 미리 각 빔의 콘크리트속에 매립시켜 상부PC스트랜드(20)를 각 경간에 걸쳐 연속적으로 삽입할 수 있는 공간을 확보하여야한다.In the present invention, only the upper connection PC steel rod 12 of the upper end of the connection portion may resist both the dead load and the parent load due to the live load, and optionally the parent load by the dead load to bear the upper connection PC steel rod 12 As the parent load due to the live load, as illustrated in FIG. 7, the upper PC strand 20 is separately disposed on the connection between the beams and the beams, or the upper PC strands 12 are entirely excluded and the upper PC strands ( 20) may be used to resist both parental loads and dead loads. At this time, in order to arrange the upper PC strand 20, when manufacturing the respective beams on the ground independently, as shown in Fig. 2, the sheath pipe 18 is embedded in the concrete of each beam in advance to the upper PC strand 20 Space must be provided for continuous insertion over each span.
이와 같이 상부PC스트랜드(20)를 삽입할 수 있는 쉬스파이프(18)가 미리 배치된 각 빔을 본 발명의 지금까지와 같은 과정을 거쳐 각 교각(2)위에 가설시킨 후 스틸브라켓(6)과 하부연결판(8)의 결합 및 스틸브라켓(6)과 브라켓 연결판(9)과의 결합을 완성한 후 상부연결PC강봉(12)의 조립과 동시에 예시도 5와 같이 2개의 돌출된 스틸브라켓(6) 사이 공간의 상부에서 종방향으로 인접한 2개빔끼리의 쉬스파이프(18)를 연결하는 연결쉬스파이프(19)를 조립한다. 이 때 각 빔의 단부정착판(4)의 상측에는 I빔속에 미리 매립된 쉬스파이프(18)와 연결쉬스파이프(19)가 연속적으로 관통하여 조립될 수 있도록 관통공(5)이 형성되어 있어야 한다.Thus, the steel pipe 6 and the steel bracket 6 and then installed on each of the piers (2) through the same process of the present invention so far the sheath pipe 18 that can be inserted into the upper PC strand (20) After completing the coupling of the lower connecting plate (8) and the combination of the steel bracket (6) and the bracket connecting plate (9) and the assembly of the upper connecting PC steel rod 12 and at the same time as shown in Figure 5 two protruding steel bracket ( 6) Assemble the connecting sheath pipe 19 for connecting the sheath pipes 18 of two beams adjacent in the longitudinal direction at the upper part of the interspace. At this time, the through hole 5 should be formed in the upper side of the end fixing plate 4 of each beam so that the sheath pipe 18 and the connecting sheath pipe 19 which are previously embedded in the I beam can be continuously assembled and assembled. do.
위와 같은 과정을 거쳐 각 경간의 빔속에 미리 매립된 쉬스파이프(18)는 각 빔사이의 연결쉬스파이프(19)에 의하여 2경간 이상의 모든 경간이 연속적으로 관통되록한 후 상부PC스트랜드(20)를 모든 경간에 걸쳐 연속되도록 삽입하여 배치한 후 각 빔 사이의 충진콘크리트(15)를 시공하고 임시받침(14)을 제거한 후 상부 슬래브(16)를 시공하기 직전에 상부PC스트랜드(20)를 먼저 인장 정착하거나 또는 상부 슬래브(16)를 시공한 후 인장정착하도록 한다.Through the above process, the sheath pipe 18 embedded in the beams of each span in advance is allowed to penetrate the upper PC strand 20 after all the spans of two or more spans are continuously penetrated by the connecting sheave pipes 19 between the beams. After inserting and arranging to be continuous over all spans, construct the filling concrete 15 between each beam, remove the temporary support 14, and tension the upper PC strand 20 first just before constructing the upper slab 16. After fixing or installing the upper slab (16) to be tension fixed.
지금까지 피.에스.씨-I빔을 2경간 이상 다경간으로 건설할 때 각 경간의 빔을 지상에서 각각 독립적으로 제작하여 각 경간에 걸쳐 단순보구조계로 가설한 후 슬래브만 연속되도록 예시도 1a와 같이 시공하거나 또는 예시도 1b와 같이 2개의 교좌장치를 사용하여 독립적으로 가설된 각 빔과빔 사이를 철근콘크리트만으로 충진하여 슬래브를 연속하여 시공하므로 완전한 연속구조계의 실현이 불가능하였다.Up to now, when constructing P.S.C-I beam in multi-span over 2 spans, beams of each span are independently produced on the ground and hypothesized as a simple beam structure system over each span. As shown in FIG. 1B, two slab devices are used to fill the beams and the slabs are continuously constructed by filling only the reinforced concrete with only the reinforced concrete. Therefore, it is impossible to realize a complete continuous structure system.
본 발명은 상술한 바와 같이 지상에서 각각 독립적으로 제작된 피.에스.씨-I빔을 각 경간의 빔과빔 사이에 스틸브라켓과 그 연결판 및 하부연결판과 상부연결PC강봉등으로서 완전하게 연속결합하므로서 연결부의 구조적 강성을 피.에스.씨-I빔 자체의 강성보다 오히려 더 크게하여 1개의 교좌장치만을 사용한 상태에서 구조적으로 완전하게 연속된 2경간 이상의 피.에스.씨-I빔교를 건설할 수 있는 효과가 있으며, 아울러 상부PC스트랜드를 추가로 인장정착하므로서 2경간 이상의 모든 경간에 걸쳐 부모멘트와 정모멘트가 연속적으로 교차하는 인장응력에 확실하게 저항할 수 있는 연속된 프리스트레스압축응력을 추가로 도입할 수 있는 효과가 있다.As described above, the P.S.C-I beam is independently manufactured on the ground as a steel bracket and its connecting plate and lower connecting plate and upper connecting PC steel bar between beams of each span. By continuous coupling, the structural stiffness of the connecting portion is greater than that of the P.S.C-I beam itself, so that two or more spans of P.S.C.I-beam bridges that are structurally completely continuous with only one cross-linking device are used. In addition, it is possible to construct a continuous prestressed compressive stress which can reliably resist the tensile stress in which the parent moment and the constant moment intersect continuously over all spans by additionally tensioning the upper PC strand. There is an additional effect that can be introduced.
도 1a는 종래의 피.에스.씨-I빔을 단순보구조계로 가설하여 슬래브콘크리트만 연속되도록 시공한 상태의 정면 개략도,1A is a front schematic view of a state in which a conventional P.S.C-I beam is constructed by a simple beam structure system so that only slab concrete is continuous;
도 1b는 종래의 피.에스.씨-I빔을 단순보구조계로 가설하여 빔과빔 사이를 철근콘크리트로 충진한 후 슬래브콘크리트가 연속되도록 시공한 상태의 개략 정면도,1B is a schematic front view of a state in which a conventional P.S.C-I beam is constructed with a simple beam structure and filled with reinforced concrete between beams and beams, and then constructed so that slab concrete is continuous;
도 2는 본 발명에 따른 각각의 빔을 지상에서 독립적으로 제작할 때 상부PC스트랜드를 삽입하기 위한 쉬스파이프를 미리 매립한 상태의 종단면도,Figure 2 is a longitudinal sectional view of a state in which the sheath pipe for inserting the upper PC strand in advance when manufacturing each beam independently from the ground according to the present invention;
도 3은 본 발명에 따른 피.에스.씨-I빔의 일측 또는 양측단부에 스틸브라켓이 돌출된 단부정착판이 콘크리트 속에 매립된 앵커보울트와 너트에 의하여 빔에 고정 부착된 상태의 절개 사시도,Figure 3 is a perspective view of the cutting state of the end fixing plate with the steel bracket protruding at one side or both ends of the P. C-I beam according to the present invention fixedly attached to the beam by an anchor bolt and a nut embedded in concrete,
도 4a는 본 발명에 따른 피.에스.씨-I빔을 교각 위에 미리 설치된 임시받침 위에 가설하여 스틸브라켓의 하단이 교좌장치 위의 하부연결판과 밀착된 상태의 정면도,Figure 4a is a front view of a state in which the bottom of the steel bracket is in close contact with the lower connecting plate on the chair device by installing a P.S.C-I beam according to the present invention on a temporary support pre-installed on the piers,
도 4b는 도 4a중 A-A선 단면도,4B is a cross-sectional view taken along the line A-A of FIG. 4A;
도 5는 본 발명에 따른 피.에스.씨-I빔의 연결부에 연결쉬스파이프와 브라켓 연결판을 연결하기 전의 분리 사시도,5 is an exploded perspective view before connecting the sheath pipe and the bracket connecting plate to the connection portion of the P.S.C-I beam according to the present invention;
도 6a는 본 발명에 따른 피.에스.씨-I빔의 연결부 브라켓 연결판과 각 빔사이의 스틸브라켓을 보울트와 너트로 결합 연결한 후 스틸브라켓 상단에 상부연결PC강봉을 결합하기 전의 분리 사시도,Figure 6a is a perspective view of the separation before connecting the upper connection PC steel bar on the top of the steel bracket after coupling the connection bracket and the steel bracket between the beam and each beam of the P.S.C-I beam according to the present invention ,
도 6b는 도 6a중 B-B선 단면도,6B is a cross-sectional view taken along the line B-B in FIG. 6A;
도 7은 본 발명에 따른 피.에스.씨-I빔에 관한 도 6b의 C-C선단면도로서 각 빔과빔 사이에 연결쉬스파이프가 설치되어 각 빔속에 미리 매립된 쉬스파이프와 연속하여 관통되도록한 후 그 속에 상부PC스트랜드를 연속하여 삽입한 상태와 상부연결PC강봉을 조립한 상태의 단면도,FIG. 7 is a cross-sectional view taken along line CC of FIG. 6B of a P.S.C-I beam according to the present invention, wherein a connecting sheath pipe is installed between each beam to continuously penetrate the sheath pipe previously embedded in each beam; FIG. After that, the cross-sectional view of the state in which the upper PC strand is inserted continuously and the upper connecting PC steel bar assembled
도 8은 본 발명에 따른 피.에스.씨-I빔의 연결부 분리 사시도,8 is an exploded perspective view of the connection portion of the P. C. C-I beam according to the present invention;
도 9는 본 발명에 따른 피.에스.씨-I빔의 연결부에서 스틸브라켓과 하부연결판과 상부연결PC강봉등의 결합 연결을 완료한 후 각 빔과빔 사이에 충진콘크리트를 타설한 상태의 일부 절개 사시도,9 is a state in which the filling concrete is placed between each beam after the completion of the coupling connection of the steel bracket and the lower connecting plate and the upper connecting PC steel bar in the connection portion of the P.S.C-I beam according to the present invention. Partial incision perspective,
도 10은 본 발명에 따른 피.에스.씨-I빔을 사용한 3경간 연속 교량의 연결부와 상부PC스트랜드의 배치상태를 도시한 개략 종단면도이다.10 is a schematic longitudinal cross-sectional view showing the arrangement of the connection portion and the upper PC strand of the three-span continuous bridge using the P.S.C-I beam according to the present invention.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1 - 피.에스.씨-I빔, 2 - 교각,1-P.S.C-I Beam, 2-Pier,
3 - 교량받침, 4 - 단부정착판,3-bridge support, 4-end stop plate,
5 - 관통공, 6 - 스틸브라켓,5-through hole, 6-steel bracket,
7 - 앵커, 8 - 하부연결판,7-anchor, 8-lower connecting plate,
9 - 브라켓 연결판, 10 - 연결보울트,9-bracket connection plate, 10-connection bolt,
10' - 너트, 11 - 상부연결브라켓,10 '-nut, 11-upper connection bracket,
12 - 상부연결PC강봉, 13 - 앵커 고정너트,12-PC connection steel rod, 13-anchor fixing nut,
14 - 임시받침, 15 - 충진콘크리트,14-temporary support, 15-filled concrete,
16 - 슬래브콘크리트, 17 - 철근,16-slab concrete, 17-rebar,
18 - 쉬스파이프, 19 - 연결쉬스파이프,18-Sheathpipe, 19-Sheathpipe,
20 - 상부PC스트랜드, 21 - 상부연결PC강봉너트,20-Upper PC Strand, 21-Upper Connection PC Steel Bar Nut,
22 - 상부연결브라켓지지판.22-Support bracket for upper connection bracket.
Claims (7)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030095319A KR100621539B1 (en) | 2003-12-23 | 2003-12-23 | Method for connecting continuously P.S.C-Ibeam by steel bracket and its structure |
| JP2004095062A JP2005180162A (en) | 2003-12-23 | 2004-03-29 | Connecting structure and connecting method of i-type prestressed concrete beam with steel bracket |
| US10/814,642 US20050144890A1 (en) | 2003-12-23 | 2004-04-01 | Structure and method of connecting I-type prestressed concrete beams using steel brackets |
| CNB2004100338067A CN100417771C (en) | 2003-12-23 | 2004-04-14 | Structure and method of connecting I-type prestressed concrete beams using steel brackets |
| EP04012158A EP1548190A3 (en) | 2003-12-23 | 2004-05-22 | Structure and method of connecting I-Type prestressed concrete beams using steel brackets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030095319A KR100621539B1 (en) | 2003-12-23 | 2003-12-23 | Method for connecting continuously P.S.C-Ibeam by steel bracket and its structure |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20-2003-0040029U Division KR200345792Y1 (en) | 2003-12-24 | 2003-12-24 | P.S.C-Ibeam by steel bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20050064049A true KR20050064049A (en) | 2005-06-29 |
| KR100621539B1 KR100621539B1 (en) | 2006-09-13 |
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| KR1020030095319A KR100621539B1 (en) | 2003-12-23 | 2003-12-23 | Method for connecting continuously P.S.C-Ibeam by steel bracket and its structure |
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| Country | Link |
|---|---|
| US (1) | US20050144890A1 (en) |
| EP (1) | EP1548190A3 (en) |
| JP (1) | JP2005180162A (en) |
| KR (1) | KR100621539B1 (en) |
| CN (1) | CN100417771C (en) |
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- 2003-12-23 KR KR1020030095319A patent/KR100621539B1/en not_active IP Right Cessation
-
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- 2004-03-29 JP JP2004095062A patent/JP2005180162A/en active Pending
- 2004-04-01 US US10/814,642 patent/US20050144890A1/en not_active Abandoned
- 2004-04-14 CN CNB2004100338067A patent/CN100417771C/en not_active Expired - Fee Related
- 2004-05-22 EP EP04012158A patent/EP1548190A3/en not_active Withdrawn
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| KR20230139568A (en) * | 2022-03-28 | 2023-10-05 | 유정태 | Construction method for continuous bridge using single supporter |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1548190A3 (en) | 2006-03-01 |
| US20050144890A1 (en) | 2005-07-07 |
| JP2005180162A (en) | 2005-07-07 |
| KR100621539B1 (en) | 2006-09-13 |
| CN100417771C (en) | 2008-09-10 |
| EP1548190A2 (en) | 2005-06-29 |
| CN1637215A (en) | 2005-07-13 |
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