KR100591006B1 - the down load strenthening structure of bridge beam by bolt coupler - Google Patents

the down load strenthening structure of bridge beam by bolt coupler Download PDF

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KR100591006B1
KR100591006B1 KR1020030090439A KR20030090439A KR100591006B1 KR 100591006 B1 KR100591006 B1 KR 100591006B1 KR 1020030090439 A KR1020030090439 A KR 1020030090439A KR 20030090439 A KR20030090439 A KR 20030090439A KR 100591006 B1 KR100591006 B1 KR 100591006B1
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South Korea
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steel wire
bracket
sides
tensile steel
anchoring
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KR1020030090439A
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Korean (ko)
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KR20040004273A (en
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오태헌
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지엘콘(주)
오태헌
지엘기술 (주)
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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
    • E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
    • 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
    • E01D2101/30—Metal
    • E01D2101/32—Metal prestressed

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

본 발명은 볼트커플러를이용한교량빔의내하력강화구조에 관한 것으로, 특히 교량빔과 같은 구조물에 스트레스의 손실이 점차증가될 경우에는 교량빔의 처짐현상을 방지하기 위한 종래의 가로빔 구조물의 강성을 보강하기 위한 강연선을 설치하고 지지하기 위한 외부장착정착구가 다수개 설치해야 함에 있어서, 많은 공기가 소요되고 빔구조물등에 대한 많은 천공작업으로 인해 빔의 강성의 저하가 초래되는 일도 있었다.이에 본 발명에서는 가로빔의 길이방향양단부에 내하력 강화에 따른 인장강선(600)의 장력에 내구성이 한층 보완되어 보다 강화된 지접정착구(200)와 길이방향 중간지점저부에 볼트체결정착한 강연선중앙정착새들(400)에 강연선(500)을 정착하여, 볼트와 커플러(300)에 의하여, 인장강선(600)의 장력에 내구성이 한층 보완되며 외부에서 인장강선(600)이나 강연선(500)의 장력을 용이하게 긴장시킬수 있도록 하고, 교량의 가로빔의 내하력을 강화하여 슬래브의 처짐현상을 방지하여, 내구연한을 증진하고자 한 유용한 발명인 것이다.The present invention relates to a load-bearing strengthening structure of a bridge beam using a bolt coupler, in particular, when the stress loss is gradually increased in a structure such as a bridge beam, the rigidity of the conventional horizontal beam structure to prevent the deflection of the bridge beam In the case where a plurality of external mounting fixtures for installing and supporting the stranded wire for reinforcement have to be installed, a lot of air is required, and many drilling operations for the beam structure, etc., sometimes result in a decrease in the rigidity of the beam. Steel wire anchorage anchors (400) bolted to the anchoring fixture 200 and the longitudinal midpoint of the longitudinal strengthening further reinforced by the durability of the tension of the tensile steel wire 600 according to the load-bearing strength in the longitudinal both ends of the horizontal beam By fixing the strand 500 in, by the bolt and the coupler 300, the durability of the tensile steel wire 600 is further complemented in the outside It is a useful invention to make it easy to tension the tension of the tensile steel wire 600 or the strand 500, and to strengthen the load capacity of the transverse beam of the bridge to prevent the deflection of the slab, to increase the durability.

볼트커플러를이용한교량빔의내하력강화구조Load-bearing structure of bridge beam using bolt coupler

Description

볼트커플러를이용한교량빔의내하력강화구조{the down load strenthening structure of bridge beam by bolt coupler}The down load strenthening structure of bridge beam by bolt coupler}

도 1은 본 발명 교량 가로빔의 부분생략종단면도.1 is a partially omitted longitudinal cross-sectional view of the present invention bridge transverse beam.

도 2는 도 1의 각부에 대한 횡단면도로, ⅰ은 A-A선 횡단면도, ⅱ는 B-B선 횡단면도, ⅲ은 C-C선 횡단면도, ⅳ는 D-D선 횡단면도.Fig. 2 is a cross sectional view of each part of Fig. 1, a cross-sectional view taken along a line A-A, ii a cross-sectional view taken along a line B-B, a cross-sectional view taken on a line C-C, and a cross-sectional view taken on a line D-D.

도 3은 본 발명에 따른 교량 가로빔의 지접정착구의 부분발췌도로 ⅰ는 외측부분발췌도,ⅱ는 내측부분발췌도.Figure 3 is a partial excerpt of the outer portion of the tangential anchorage of the bridge transverse beam according to the present invention, ii is an inner portion excerpt.

도 4는 본 발명에 따른 교량가로빔의 지접정착구의 부분발췌저면도.Figure 4 is a partial bottom view of the abutment anchorage of the bridge horizontal beam according to the invention.

도 5는 본 발명에 따른 교량가로빔의 중앙정착구로 ⅰ는 부분발췌설치 평면도, ⅱ는 중앙정착구의 측면도.Figure 5 is a partial plan view of the installation excavated in the center anchoring of the bridge horizontal beam in accordance with the present invention, ii is a side view of the center anchoring.

도 6은 본 발명에 따른 교량 인장강선 긴장을 위한 지접정착구에 볼트커플러 를 장착조립하는 사용상태사시도.Figure 6 is a perspective view of the use state of assembling the bolt coupler to the grounding anchorage for tension tension wire bridge in accordance with the present invention.

※도면의 주요 부분에 대한 부호의 설명※ Explanation of code for main part of drawing

100:가로빔 200:지접정착구100: horizontal beam 200: direct contact

300:볼트커플러 400:강연선중앙정착 새들 300: Bolt coupler 400: Steel wire center fixation saddle

500:강연선 600:인장강선500: stranded wire 600: tensile steel wire

본 발명은 볼트커플러를이용한교량빔의내하력강화구조에 관한 것으로, 특히 교량빔과 같은 구조물에 스트레스의 손실이 점차증가될 경우에는 교량빔의 처짐현상이 발생하는 경우에는 구조물의 균열파손으로 이어져 교량붕괴 등의 대형사고가유발되는 경우까지 이어질수 있다.The present invention relates to a load-bearing strengthening structure of a bridge beam using a bolt coupler, in particular, when the loss of stress gradually increases in a structure such as a bridge beam, when the bridge beam deflection occurs, the bridge leads to crack damage of the structure This can lead to a major accident such as a collapse.

상기와 같이 피씨빔(PC beam)과 같은 프리스트레스(prestress)구조물의 처짐현상을 방지하기 위하여, 제안된 종래의 기술은 피씨빔 양단부에 그 빔 구조물의 폭방향으로 관통하는 다수의 관통공을 횡방향으로 천공하여 각 관통공에 보강철근을 매립고정하고, 빔 구조물의 양측벽에 노출되는 각 매립 철근의 단부에 또 다른 외부보강철근 종횡으로 배근한 후, 그 외부 보강철근의 배근부에 시멘콘크리트를 타설하여 빔 구조물의 외부양측으로 돌출되는 콘크리트지지부를 형성한후, 양측 콘크리트지지부의 양측단부에 다수개의 PC강연선의 단부가 지지되는 별도의 장착구를 설치해 그 정착구에 빔 구조물의 외측벽을 따라 부설시켜 양단 강연선 단부를 긴장장치로 인장하여 수평이하로 처진 빔구조물의 위로 받혀 처짐현상을 복원하도록 한 구조물의 강성을 보강하는 것이 일반적인 기술이다.In order to prevent the deflection of prestress structures such as PC beams as described above, the proposed conventional technique has a plurality of through holes penetrating in the width direction of the beam structure at both ends of the PC beam in the lateral direction. Reinforce the reinforcing bars in each of the through-holes, and reinforce the other reinforcing bars longitudinally and horizontally at the ends of each reinforcing bar exposed to the side walls of the beam structure, After placing concrete supporting parts projecting to both sides of the beam structure, install a separate mounting hole for supporting the ends of a plurality of PC strands at both ends of both concrete support parts, and install them along the outer wall of the beam structure in the anchorage. The stiffness of the structure to tension the ends of the strands of both ends by the tensioning device to restore the deflection by supporting the beam structure that is drooped below the horizontal Drop is a common technique.

상기와 같은 교량빔의 강성을 보강하는 기술들에 있어서의 문제점은 빔 구조물의 강성을 보강하기 위한 강연선을 설치하고 지지하기 위한 외부장착정착구가 다수개 설치해야 함에 있어서, 많은 공기가 소요되고 빔구조물등에 대한 많은 천공작업으로 인해 빔의 강성의 저하가 초래되는 일도 있었다.The problem in the techniques for reinforcing the rigidity of the bridge beam is that a large number of external mounting fixtures for installing and supporting the strands for reinforcing the rigidity of the beam structure requires a lot of air, and the beam structure Many perforations on the lamp may cause a decrease in the rigidity of the beam.

상기와 같은 점을 감안하여, 본 발명에서는 교량의 가로빔 길이방향 하부에 강연선을 정착하기 위해 가로빔의 길이방향양단부의 지접정착구와 강연선중앙정착 새들에 강연선을 정착하여, 볼트와 커플러에 의하여, 교량가로빔의 내하력을 강화하여 슬래브의 처짐현상을 방지하여, 내구연한을 증진하고자 하는 것이다.In view of the above, in the present invention, in order to fix the strand in the longitudinal longitudinal lower portion of the bridge, the strand is fixed at the contact anchorage and the centerline saddle of the strand in the longitudinal ends of the horizontal beam, by means of bolts and couplers, It is to enhance the durability of the bridge beam by strengthening the load capacity of the bridge beam to prevent the slab from sagging.

상기의 목적을 달성하기 위한, 본 발명의 볼트커플러를이용한교량빔의내하력강화구조로는 일정폭과 길이방향의 교량 가로빔(100) 양단부 내상측 양편으로는 중앙에 인장강선공(200e)를 첨공한 지접정착구내측수직브라켓(200a)2조를 일정간격으로 가로빔(100)의 측면부재(100a) 일측에 정착하며, 그 상하단에는 직사각리브를 내측상하단에 삼각리브를 정착한 지접정착구내측상브라켓(200b)을 형성하며, 지접정착구내측수직브라켓(200a)의 대향편 측면부재(100a)에는 측면부재외측수직보강편 (100c)를 용착하고, 그 가운데에는 지접정착구외측중간브라켓(200d)을 용착하여, 상기 지접용착구내측상하브라켓(200b)에 각 대향되는 측면부재외측수직보강편 (100c)사이에는 사각리브가 그 좌우편으로는 삼각리브가 각 용착되어 지접정착구외측상하브라켓(200c)으로 이루어진 지접정착구(200)를 형성하며, 가로빔(100)의 길이방향 중간 저면부에 횡으로 볼트체결한 중앙정착새들횡고정대(400d) 양편에 중앙정착새들베이스(400c) 좌우양편으로 용착된 중앙정착새들브라켓(400b)중앙부에 축설된 강연선지지봉(400a)이 형성된 강연선중앙정착새들(400)의 중앙정착새들베이스 (400c)좌우부를 상기 중앙정착새들횡고정대(400d)상에 정착시켜, 끝단이 볼트가공 된 일정길이의 인장강선(600)을 상기 지접정착구(200)의 인장강선공(200e)에 관통시켜 단부에 인장강선긴장너트(600a)를 체결후 강연선중앙정착새들(400)돌출된 인장강선 (600)의 단부와 상기 강연성중앙정착새들(400)의 강연성지지봉(400a)을 경유한 강연선(500)의 단부는 공지의 볼트커플러(300)로 체결되는 것이다.In order to achieve the above object, the load-bearing reinforced structure of the bridge beam using the bolt coupler of the present invention is a tensile wire hole (200e) in the center on both sides of the upper end of both ends of the horizontal beam (100) in a predetermined width and length direction Two sets of the vertical contact brackets (200a) inside the contact points are fixed to one side of the side member (100a) of the horizontal beam (100) at regular intervals, and the upper and lower ends of the vertical anchors (triangle ribs are settled on the inner upper and lower ends). A bracket 200b is formed, and a side member outer vertical reinforcing piece 100c is welded to the opposite side member 100a of the inner fastening bracket inner vertical bracket 200a, and the middle fixing bracket 200d is attached to the middle of the ground fastening member. By welding, between the side member outer vertical reinforcing piece (100c) facing each other to the inner surface upper and lower bracket (200b) of the welding splicing, a square rib is welded to the left and right sides, respectively, consisting of the upper and lower brackets (c) The center fixing saddle 200 is formed, and the center fixing saddles are fixed on both sides of the central fixing saddle horizontal fixing stand 400d horizontally bolted to the middle bottom surface of the horizontal beam 100 on both sides. The left and right portions of the center anchoring saddle base 400c of the stranded anchoring rods 400a formed with the strand support rods 400a formed at the center of the saddle bracket 400b are fixed on the centering cross saddle 400d, and the ends are bolted. The tensile steel wire 600 of the predetermined length is passed through the tensile steel wire hole 200e of the contact fixing hole 200, and the tensile steel wire tightening nut 600a is fastened to the end, and the stranded steel wire anchoring birds 400 are extruded. The end of the 600 and the end of the strand 500 via the ductile support rod 400a of the ductile center anchoring birds 400 is to be fastened with a known bolt coupler (300).

상기와 같이 구성된 본 발명의 일실시 작용을 첨부도면에 의하여 상세히 알보면 다음과 같다.One embodiment of the present invention configured as described above in detail by the accompanying drawings as follows.

첨부 도 1과 같이 교량의 가로빔(100) 길이방향 양단에 정착된 지접정착구 (200)와 길이방향중간하부에 횡방향으로 볼트조립된 중앙정착새들횡고정대(400d)상에 볼트조립된 강연선중앙정착새들(400)을 경유하는 강연선(500) 양단을 긴장시키는 도구로 강연선(500)의 양단과 지접정착구(200)의 인장강선공(200e)을 경유하는 일정길이의 인장강선(600)을 공지의 볼트커플러(300)로 정착시키는데, 상기의 볼트커플러는 도 6에 분해 도시된바와 같이, 외경부에 탭이 형성된 중공파이프 양단에 내측에 탭부가 형성된체 3개로 분할된 조각편의 단부에 형성된 홈부에 탄성링을 끼워 일구경이 테이퍼된체 내경부가 탭이 형성된 제1,2결합구내에 상기 강연선(500)의 일단과 인장강선(600)의 일단을 삽입해 각 단부에 조각편을 끼워 외경부에 탭이 형성된 고정구의 양단에 나사로 긴장시켜, 일편이 테이퍼된 결합구내로 역시 일편이 테이퍼된 조각편내에 끼워진 강연선(500)과 인장강선(600)의 양단을 단단히 정착시키는 것이다.Attached as shown in FIG. 1, the center of the steel wire assembly line bolted on the anchoring fixture 200 anchored at both ends in the longitudinal direction of the horizontal beam 100 and the central anchoring saddle horizontal fixer (400d) bolted in the transverse direction at the lower longitudinal middle Announce the tensile steel wire 600 of a predetermined length via the tensile wire hole (200e) of the both ends of the stranded wire 500 and the contact fixing fixture 200 as a tool for tensioning both ends of the stranded wire 500 via the fixing birds (400). The bolt coupler 300 is fixed, and the bolt coupler is formed in an end portion of a piece piece divided into three bodies having tab portions formed at both ends of a hollow pipe having tabs formed at outer diameters, as shown in FIG. 6. Insert one end of the stranded wire 500 and one end of the tensile steel wire 600 into the outer diameter portion of the inner diameter portion of the tapered body having one diameter tapered by inserting an elastic ring into the first and second coupling holes. With screws at both ends of the tabbed fixture Chapter by, one piece is to this also tightly fixing both ends of the strand 500 and the tension wire 600 is fitted within the one piece is tapered with a taper jogakpyeon binding site.

한편, 지접정착구(200)에 정착되는 일정길이의 인장강선(600)은 일단은 환봉으로 정착되는 부분에는 탭부를 형성시켜, 지접정착구내측수직브라켓(200a)과 가로 빔내부격판(100f)을 관통해 첨공된 인장강선공(200e)에 인장강선(600)의 탭부를 끼워 외측에 돌출된 탭부에 인장강선긴장너트(600a)로 하부로 처진 교량의 가로빔(100)하부를 경유해 배설된 강연선(500)을 좌우로 긴장시켜, 교량의 내하력강화하도록 한 것이다.On the other hand, the tensile steel wire 600 of a predetermined length to be fixed to the abutment anchorage 200 forms a tab portion at one end is fixed to the round rod, penetrating the abutment anchorage inner vertical bracket (200a) and the horizontal beam inner plate (100f) The stranded wire disposed through the lower portion of the transverse beam 100 of the bridge sagging downward with the tensile steel tension nut 600a is inserted into the tab portion of the tensile steel wire 600 in the tensioned steel wire hole 200e. Tension (500) to the left and right to strengthen the load capacity of the bridge.

상기에서 교량의 내하력과 무게중량에 의해 가로빔(100) 길이방향의 양단부에 형성된 지접정착구(200)는 비교적 두께가 경박한 가로빔(100)의 측면부재(100a)에 정착되기 때문에, 지접정착구(200)의 보강구조에 촛점을 맞춰야 한다.Since the contact fixing holes 200 formed at both ends of the horizontal beam 100 in the longitudinal direction by the load-bearing force and the weight of the bridge are fixed to the side members 100a of the horizontal beam 100 that are relatively thin, The reinforcement structure of (200) should be focused.

즉, 가로빔(100)의 길이방향 양단 중앙쪽으로 당겨지는 장력을 지접정착구 (200)의 정착부가 버티기 위해서는 가로빔(100)의 길이방향 양단 중앙쪽인 지접정착구내측수직브라켓(200a) 양단에는 사각의 보강리브를 안쪽에는 삼각의 보강리브로 정착된 지접정착구내측상하브라켓(200b)에 의하여 가로빔(100)의 내하력 강화에 따른 인장강선(600)의 장력에 내구성이 보완되게 한 것이다.That is, in order to support the fixing portion of the grounding fastener 200 to hold the tension pulled toward the center of both ends of the horizontal beam 100 in the longitudinal direction of the horizontal beam 100, both ends of the vertical mounting bracket inner side vertical brackets 200a are square. The reinforcing rib of the inside is to be supplemented to the durability of the tension of the tensile steel wire 600 by strengthening the load capacity of the horizontal beam 100 by the upper and lower brackets (200b) fixed to the triangular reinforcing ribs inside.

더불어, 상기의 지접정착구내측수직브라켓(200a)에 대향되는 측면부재(100a) 외측편에는 수직방향으로 좌우로 측면부재외측수직보강편(100c)과 그 사이에는 지접정착구외측중간브라켓(200d)을 정착하고, 상기 지접정착구내측상하브라켓(200b)에 대향되는 측면부재(100a)의 외측편에도 장력보완을 위하여, 측면부재외측수직보강편(100c)사이에는 사각리브가 그 좌우편으로는 삼각리브가 각 용착되어 지접정착구외측상하브라켓(200c)으로 이루어진 지접정착구(200)에 의해 가로빔(100)의 내하력 강화에 따른 인장강선(600)의 장력에 내구성이 한층 보완되게 한 것이다. In addition, the outer side of the side member (100a) opposite to the inner surface of the abutment fastener (200a) in the vertical direction to the left and right side member outer vertical reinforcing piece (100c) and between the intermediate fixing bracket (200d) In order to fix the tension on the outer side of the side member 100a opposite to the upper and lower brackets 200b, the square ribs are welded between the side member outer vertical reinforcing pieces 100c and triangular ribs on the left and right sides thereof. The durability is further complemented by the tension of the tensile steel wire 600 according to the load-bearing strength of the horizontal beam 100 by the contact fixing fixture 200 consisting of the contact fixing fixture outer side upper and lower brackets 200c.

상기와 같이 본 발명 볼트커플러를이용한교량빔의내하력강화구조에 따르면, 교량을 구성하는 바닥판자체 하중과 교통하중이 더해진 바닥판을 떠받히는 바닥틀중 특히 가로빔(100)의 내하력을 강화를 위하여, 외부장착정착구를 다수개 설치해야 시공하는 기존의 공법이나 장치에 비하여, 많은 공기가 단축되고 빔구조물등에 대한 많은 천공작업으로 인해 발생되였던 강성의 저하를 방지할수 있는 장점이 있으며, 특히 지접정착구(200)부의 강화에 의하여, 인장강선(600)의 장력에 내구성이 한층 보완되며 외부에서 인장강선(600)이나 강연선(500)의 장력을 용이하게 긴장시킬수 있도록 유용한 발명인 것이다. As described above, according to the load-bearing structure of the bridge beam using the bolt coupler of the present invention, the load-bearing capacity of the transverse beam 100 is particularly enhanced among the floor frames supporting the bottom plate to which the floor plate itself and the traffic load are added. For this purpose, compared to the existing construction method or apparatus that requires the installation of a plurality of external mounting fixtures, there is an advantage that can reduce the stiffness caused by a lot of air shortening and many drilling operations on the beam structure, and especially By reinforcing the fixing unit 200, the durability of the tensile steel wire 600 is further supplemented, and it is a useful invention to easily tension the tension of the tensile steel wire 600 or the strand 500 from the outside.

Claims (1)

일정폭과 길이방향의 교량 가로빔(100) 양단부 내상측 양편으로는 중앙에 인장강선공(200e)를 첨공한 지접정착구내측수직브라켓(200a)2조를 일정간격으로 가로빔(100)의 측면부재(100a) 일측에 정착하며, 그 상하단에는 직사각리브를 내측상하단에 삼각리브를 정착한 지접정착구내측상브라켓(200b)을 형성하며, 지접정착구내측수직브라켓(200a)의 대향편 측면부재(100a)에는 측면부재외측수직보강편 (100c)를 용착하고, 그 가운데에는 지접정착구외측중간브라켓(200d)을 용착하여, 상기 지접용착구내측상하브라켓(200b)에 각 대향되는 측면부재외측수직보강편 (100c)사이에는 사각리브가 그 좌우편으로는 삼각리브가 각 용착되어 지접정착구외측상하브라켓(200c)으로 이루어진 지접정착구(200)를 형성하며, 가로빔(100)의 길이방향 중간 저면부에 횡으로 볼트체결한 중앙정착새들횡고정대(400d) 양편에 중앙정착새들베이스(400c) 좌우양편으로 용착된 중앙정착새들브라켓(400b)중앙부에 축설된 강연선지지봉(400a)이 형성된 강연선중앙정착새들(400)의 중앙정착새들베이스 (400c)좌우부를 상기 중앙정착새들횡고정대(400d)상에 정착시켜, 끝단이 볼트가공된 일정길이의 인장강선(600)을 상기 지접정착구(200)의 인장강선공(200e)에 관통시켜 단부에 인장강선긴장너트(600a)를 체결후 강연선중앙정착새들(400)돌출된 인장강선 (600)의 단부와 상기 강연성중앙정착새들(400)의 강연성지지봉(400a)을 경유한 강연선(500)의 단부는 공지의 볼트커플러(300)로 체결됨을 특징으로 하는 볼트커플러를이용한교량빔의내하력강화구조.Both sides of the horizontal beam 100 in a predetermined width and length direction, the two sides of the vertical anchoring bracket inner side vertical bracket (200a) having a tensile wire hole (200e) in the center on both sides of the horizontal beam (100) at both sides at regular intervals The member 100a is fixed on one side, and upper and lower ends thereof form a rectangular bracket on the inner fixing bracket and a triangular rib on the inner upper and lower ends, and the upper bracket 200b is formed, and the opposite side surface member 100a of the inner fixing bracket 200a is fixed. The side member outer vertical reinforcement piece (100c) is welded to the center member, and the center fixing bracket (200d) is welded to the center of the contact member, and the side member outer vertical reinforcement piece is respectively opposed to the upper and lower brackets (200b) inside the contact welder. Square ribs are welded to the right and left sides of the triangular ribs between the 100c to form the contact fixing holes 200 formed of the upper and lower brackets 200c outside the contact fixing holes, and the bolts laterally in the longitudinal middle bottom portion of the horizontal beam 100 Centered Central anchoring birds of the stranding anchorages (400) formed with the strand support rod (400a) formed in the central portion of the anchoring saddle bracket (400b) welded to both sides of the anchoring birds base (400c) on both sides of the anchoring saddle (400d) The left and right sides of the base 400c are fixed on the center fixing saddle horizontal fixing stand 400d, and the tensile steel wire 600 having a predetermined length is penetrated through the tensile steel wire hole 200e of the ground fixing fitting 200 by the end thereof. After tightening the tensile steel wire tension nut (600a) at the end of the stranded wire anchorages (400) the end of the protruding tensile steel wire (600) and the stranded wire through the ductile support rods (400a) of the ductile central anchoring birds (400) End of 500 is a load-bearing reinforced structure of the bridge beam using a bolt coupler, characterized in that the fastening with a known bolt coupler (300).
KR1020030090439A 2003-12-12 2003-12-12 the down load strenthening structure of bridge beam by bolt coupler KR100591006B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100783593B1 (en) 2005-11-15 2007-12-11 (주) 대산개발 Device of temporary bridge for sinking prevention
KR101034610B1 (en) * 2009-04-16 2011-05-12 주식회사 씨에스구조엔지니어링 Tensioning Air Beam System With A Long Span

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100783593B1 (en) 2005-11-15 2007-12-11 (주) 대산개발 Device of temporary bridge for sinking prevention
KR101034610B1 (en) * 2009-04-16 2011-05-12 주식회사 씨에스구조엔지니어링 Tensioning Air Beam System With A Long Span

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