WO2018190444A1 - Pont de poutre en plaque composite double préfabriqué et son procédé de construction - Google Patents

Pont de poutre en plaque composite double préfabriqué et son procédé de construction Download PDF

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Publication number
WO2018190444A1
WO2018190444A1 PCT/KR2017/003991 KR2017003991W WO2018190444A1 WO 2018190444 A1 WO2018190444 A1 WO 2018190444A1 KR 2017003991 W KR2017003991 W KR 2017003991W WO 2018190444 A1 WO2018190444 A1 WO 2018190444A1
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WO
WIPO (PCT)
Prior art keywords
plate
girders
bridge
girder
plate girder
Prior art date
Application number
PCT/KR2017/003991
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English (en)
Korean (ko)
Inventor
김근택
Original Assignee
김선곤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김선곤 filed Critical 김선곤
Priority to PCT/KR2017/003991 priority Critical patent/WO2018190444A1/fr
Publication of WO2018190444A1 publication Critical patent/WO2018190444A1/fr

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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
    • 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

Definitions

  • the present invention relates to a prefabricated double composite plate girder bridge and its construction method, and more particularly, a prefabricated type which improves the stiffness of the central point of the plate girder by synthesizing reinforcement concrete at the central point of the plate girder where the parent moment is large. It relates to a double composite plate girder bridge and its construction method.
  • bridges are divided into upper structures and lower structures.
  • the upper structures are composed of girders, bottom plates, etc.
  • the lower structures mean shifts and piers that safely transmit loads acting on the upper structures to the ground. do.
  • Korean Patent No. 10-09467166 a partition is installed inside a wall (shift), and the wall and the girder are integrated with concrete at the point to guide the moment to the center of the bridge to minimize the parent moment of the wall. It describes a long span prestressed concrete girder type ramen bridge and construction method through moment redistribution, but the patent requires to install a splitter inside the wall and to integrate the wall and the girder into concrete. Of course, the construction period is long, and the moment distribution effect is insufficient.
  • the Republic of Korea Patent No. 10-0547485 in the multi-span using a steel rod anchorage is installed in the pair of temporary fixing block, the steel rod is connected to the both ends of the upper flange of the girder, the steel rod is inserted into the permanent fixing block, the central fixing block It describes the continuous bridge and construction method.
  • the above patent also has a disadvantage in that the construction period is long, as well as the construction period due to connecting the iron hole, insert the steel rod, and the steel rod anchoring port, and the effect of reducing the moment is also insufficient.
  • the prior art has a problem in that the overall height and weight of the girder increases because a separate lower beam must be connected to the bottom of the girder.
  • An object of the present invention for solving the above-described problems is to improve the central point stiffness of the plate girders by synthesizing the reinforcement concrete in the central point portion of the plate girders where a large amount of parent moment occurs, thereby
  • the prefabricated double composite plate girder bridge and its construction can be reduced in weight and weight of the plate girder, to prevent twisting of the plate girders, to omit the cross beam at the central point of the plate girder, and to apply the precast bottom plate.
  • the present invention for achieving the above object is, a plurality of plate girders installed on the lower structure of the bridge and spaced apart from each other in the transverse direction of the bridge, the precast bottom plate is installed on the plurality of plate girders, and It is characterized in that it comprises a reinforcement concrete is synthesized in the lower portion of the plurality of plate girders to reinforce the rigidity of the plate girders.
  • a reinforcing concrete joint step of integrally joining the reinforcement concrete of the plurality of plate girders through a joint means, and a precast bottom plate installation step of installing a precast bottom plate on top of the plurality of plate girders It is characterized by.
  • a precast bottom plate mounting step of installing a precast bottom plate on top of the plurality of plate girders
  • the present invention can improve the rigidity of the central point portion of the plate girders by synthesizing the reinforcement concrete at the central point portion of the plate girders where the parent moment is large, thereby reducing the mold height and weight of the plate girders and the plate
  • the girder can be twisted and the crossbeam can be omitted at the center point of the plate girders.
  • the precast bottom plate is mounted on the plate girder and then fixed with a fixing device to horizontally support the plate girder, thereby preventing twisting and buckling of the plate girder.
  • FIG. 1 is a perspective view showing a prefabricated double composite plate girder bridge according to the present invention
  • Figure 2 is a side view showing a prefabricated double composite plate girder bridge according to the present invention
  • FIG. 3 is a cross-sectional view taken along line A-A and line B-B of FIG.
  • Figure 4 is a view showing the construction method of prefabricated double composite plate girder bridge according to the present invention.
  • FIG. 5 is a view showing a first embodiment of the prefabricated double composite plate girder bridge according to the present invention.
  • FIG. 6 is a view showing a second embodiment of the prefabricated double composite plate girder bridge according to the present invention.
  • FIG. 7 is a view showing a third embodiment of the prefabricated double composite plate girder bridge according to the present invention.
  • FIG. 8 is a view showing a fixing device in the prefabricated double composite plate girder bridge according to the present invention.
  • the prefabricated double composite plate girder bridge 10 includes a plate girder 20, a precast bottom plate 30, and a reinforced concrete 40.
  • the plate girder 20 is composed of an I beam 21 having flanges 22 and 23 at the top and the bottom thereof, and is installed on the lower structure 1 of the bridge.
  • the bridge is largely divided into an upper structure and a lower structure
  • the upper structure is composed of a girder, a bottom plate, etc.
  • the lower structure is shifts and piers, such as to securely transfer the load acting on the upper structure to the ground It consists of.
  • the plate girders 20 are spaced apart from each other by a predetermined interval in the transverse direction (width direction) of the bridge, that is, the plate girders 20 are spaced apart from each other are installed in a plurality of rows.
  • the plurality of plate girders 20 of the plurality of rows are installed in connection with each other in the longitudinal direction (length direction) of the bridge. At this time, the plurality of plate girders 20 are bolted to each other in the longitudinal direction of the bridge.
  • the shear connector 25 is formed on the top surface of the plate girder 20 protruding.
  • the precast bottom plate 30 is mounted on the upper portion of the plurality of plate girders 20.
  • the precast bottom plate 30 has a front end pocket 31 through which the front end connecting member 25 of the plate girder 20 is inserted.
  • the lower portion of the plurality of plate girders 20 is supported by the reinforcement concrete 40 and the upper portion of the plurality of plate girders 20 before the synthesis of the precast bottom plate 30 and the plate girder 20 Supported by the precast bottom plate 30, to prevent twisting and buckling of the plate girder 20.
  • the fixing device 26 is fixed to the upper end of the precast bottom plate 30 by being fixed to the fixing member 27 and the fixing member 27 coupled to the upper end of the shear connecting member 25, the fixing member 27 A fixing plate 28 and a fixing nut 29 screwed to the fixing member 27 to fix the fixing plate 28.
  • a concrete injection hole (not shown) is formed in the fixed plate 28 so that the concrete can be poured by the shear pocket 31.
  • the precast bottom plate 30 is mounted on the top of the plate girder 20
  • the precast bottom plate 30 is fixed by the fixing device 26, that is, the precast bottom plate 30. Fixing work through the fixing device 26 is also carried out while sequentially mounting the 30.
  • the precast bottom plate 30 is fixed through the fixing device 26 before the plate girder 20 and the precast bottom plate 30 are synthesized.
  • the precast bottom plate 30 is used.
  • By supporting the plurality of plate girders 20 in the lateral direction it is possible to prevent the twisting and buckling of the plate girders 20 before curing after the synthesis of the plate girders 20 and the precast bottom plate 30. .
  • the reinforcement concrete 40 is synthesized under the plurality of plate girders 20 spaced apart in the lateral direction of the bridge to reinforce the rigidity of the plate girders 20.
  • the reinforcement concrete 40 may be configured in three embodiments.
  • the first embodiment of the reinforcement concrete 40 may be separately synthesized to the lower flanges 23 of the plurality of plate girders 20.
  • the reinforced concrete 40 synthesized in the lower portion of the plurality of plate girders 20 are also spaced apart from each other.
  • the reinforcement concrete 40 is synthesized to surround the plate girder 20, that is, the lower flange 23 of the I beam 21.
  • the reinforcement concrete 40 is pre-synthesized in the plate girder 20 to be seated and installed on the lower structure 1.
  • the second embodiment of the reinforcement concrete 40 includes a composite part 41 which is separately synthesized to the lower flanges 23 of the plurality of plate girders 20, and the plurality of plate girders ( 20 is composed of jointing means 45 for joining each of the combining parts 41.
  • the synthesis section 41 is synthesized to surround the plate girder 20, that is, the lower flange 23 of the I beam 21.
  • the compounding portion 41 of each plate girder 20 extends a predetermined length toward the compounding portion 41 of the neighboring plate girder 20, between the compounding portion 41 of each plate girder 20 Only the space in which the joint means 45 is to be installed is spaced apart.
  • the joint means 45 is a space in which the loop reinforcing parts 46 protruding from the opposite sides of the compounding parts 41 and the loop reinforcing parts 46 between the respective compounding parts 41 are arranged. It consists of a joint synthesis portion 47 synthesized in the.
  • the reinforcing bar is installed in each of the synthesis unit 41, the reinforcing bar and the loop reinforcing bar 46 is integrally connected.
  • the lower part of the plurality of plate girders 20 is integrated by the reinforcement concrete 40. Will be connected.
  • the second embodiment is installed in the plate girder 20 in the state in which the composite portion 41 is pre-synthesized to be installed on the lower structure (1), wherein the loop reinforcement portion ( 46) is also configured. Subsequently, in the state in which the plate girder 20 is seated and installed on the lower structure 1, concrete is poured into the loop reinforcing portion 46 space to joint the composite portion 41 of each plate girder 20.
  • a third embodiment of the reinforcement concrete 40 is configured by integrally connecting a plurality of plate girders 20 spaced apart from each other in the transverse direction of the bridge, as shown in FIG.
  • a plurality of plate girders 20 are first seated and installed on an upper end of the undercarriage 1, and then the bottoms of the plurality of plate girders 20 spaced apart from each other in the width direction of the bridge are integrally connected in the field.
  • the reinforcement concrete 40 is synthesized.
  • the plurality of plate girders 20 are mounted on the lower structure 1, and then the reinforcement concrete 40 is synthesized. However, in the factory or the field, the reinforcement concrete 40 is synthesized in the lower part of the plurality of plate girders 20. After fabricating integrally, a plurality of plate girders 20 integrated with a crane may be lifted and mounted on the substructure 1.
  • all of the first to third embodiments can be manufactured in a factory or on-site, reinforcement to the lower portion of the structure or a plurality of plate girders 20 synthesized the reinforced concrete 40 to a single plate girder 20 After the concrete 40 is synthesized and integrated into the integrated structure, both can be mounted on the lower structure 1 by lifting by a crane.
  • the reinforcement concrete 40 is formed only at the position of the point portion of the bridge in the plate girder 20, the weight can be reduced, and thus, a plurality of plate girders 20 may be integrated into the reinforcement concrete 40 to produce a crane. You can easily lift it up.
  • the reinforcement concrete 40 is provided only at the point position of the bridge in the plate girder 20.
  • the reinforcement concrete 40 is provided only at the position of the point portion connected to the substructure 1. This can reduce the weight and manufacturing cost and the disclosure period of the plate girder 20.
  • the reinforcement concrete 40 is formed at the center of the central point portion of the plurality of plate girders 20 connected in the longitudinal direction of the bridge. It consists of reinforcement concrete 40a and the end reinforcement concrete 40b synthesize
  • a plurality of plate girders 20 are placed in the longitudinal direction of the bridge on the substructure 1 based on the three piers of the substructure 1 as shown in the drawing.
  • the central reinforcement concrete 40a is synthesized at the center point of the plate girder 20, and the end reinforcement concrete 40b is synthesized at both end points of the plate girder 20. will be.
  • the rigidity of the central point portion of the plate girder 20 can be improved, and the rigidity of the plate girder 20 can be improved. Due to the improvement, the height and weight of the plate girder 20 may be reduced, as well as the twist of the plate girder 20 may be prevented and a dustproof effect may be obtained, and a crossbeam may be omitted at the central point of the plate girder 20. .
  • a plate girder manufacturing step of manufacturing the plate girder 20 by synthesizing the reinforcement concrete 40 to the lower flange 23 of the plate girder 20 is performed.
  • the composite position of the reinforcement concrete 40 in the plate girder 20 is synthesized only at the point portion of the bridge, that is, the composite at the central point portion of the plate girder 20 where the parent moment is large
  • both ends of the plate girder 20 is also synthesized.
  • a plate girder mounting step of mounting the plate girder 20 on the lower structure (1) of the bridge proceeds.
  • the plurality of plate girders 20 are spaced apart from each other by a predetermined interval in the transverse direction of the bridge.
  • the plate girder 20 is lifted and mounted by a crane, in which case the plate girder 20 is lifted one by one or the plate girder 20 in the longitudinal direction. ) It can be lifted in the state where two are connected in advance.
  • the plurality of plate girders 20 arranged in the longitudinal direction of the bridge is connected to each other by connecting.
  • the reinforcement concrete joint step of jointly joining the reinforcement concrete 40 of the plurality of plate girders 20 through the joint means 45 is performed.
  • the reinforcement concrete joint step is a step of integrally joining the respective reinforcement concrete 40 of the plurality of plate girders 20 arranged in the cross direction of the bridge.
  • a precast bottom plate installation step of installing a precast bottom plate 30 on top of the plurality of plate girders 20 is performed.
  • the precast bottom plate installation step the step of mounting the precast bottom plate 30 on top of the plurality of plate girders 20, and after mounting the precast bottom plate 30, the plurality of plate girders ( Fixing the precast bottom plate 30 by installing a fixing device 26 to the shear connector 25 of the 20, and after fixing the precast bottom plate 30, the plurality of plate girders 20 and Comprising the step of synthesizing the precast bottom plate (30).
  • the precast bottom plate 30 In the step of mounting the precast bottom plate 30 is mounted so that the shear connector 25 of the plate girder 20 is inserted into the front end pocket 31 of the precast bottom plate 30.
  • the fixing plate 28 is inserted into the fixing member 27,
  • the fixing nut 29 may be screwed to the fixing member 27.
  • the fixing operation is also performed through the fixing means 26.
  • the plurality of plate girders 20 can be laterally supported.
  • the concrete is injected into the concrete injection hole (not shown) formed in the fixed plate 28 to be synthesized. Thereafter, after curing and curing, the fixing nut 29 is released and the fixing plate 28 is separated, and the fixing member 27 protruding from the precast bottom plate 30 is cut.
  • the construction method is a construction method for the second embodiment, in the case of the first embodiment the step of reinforced concrete joint is omitted.
  • the plate girder fabrication step of manufacturing the plate girder 20 by synthesizing the reinforced concrete 40 to integrally connect the lower flanges of the plurality of plate girders 20 spaced apart from each other by a predetermined distance.
  • the reinforcement concrete 40 can be manufactured integrally with a plurality of plate girders 20 through the structure as shown in Figure 6 of the second embodiment, as well as the structure as shown in FIG.
  • a plate girder mounting step of mounting the plurality of plate girders 20 integrated through the reinforcement concrete 40 on the lower structure 1 of the bridge is performed.
  • a plurality of plate girders 20 produced integrally in a factory or a site are lifted by a crane and mounted on the lower structure 1 of the bridge.
  • the precast bottom plate installation step of installing the precast bottom plate 30 on the plurality of plate girders 20 is performed.
  • the precast deck plate installation step is the same as the construction method of the second embodiment.

Abstract

La présente invention concerne un pont de poutre en plaque composite double préfabriqué et son procédé de construction, le pont de poutre permettant à un béton d'armature d'être combiné avec la partie centrale d'une poutre de plaque à laquelle un grand moment négatif est généré, de façon à permettre d'améliorer la rigidité de la partie centrale de la poutre de plaque, ce qui permet de réduire la profondeur et le poids de la poutre de plaque, empêchant ainsi la déformation de la poutre de plaque, et permettant même à une traverse d'être retirée de la partie centrale de la poutre de plaque et, en outre, applique un pont préfabriqué de façon à permettre une construction rapide.
PCT/KR2017/003991 2017-04-13 2017-04-13 Pont de poutre en plaque composite double préfabriqué et son procédé de construction WO2018190444A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/KR2017/003991 WO2018190444A1 (fr) 2017-04-13 2017-04-13 Pont de poutre en plaque composite double préfabriqué et son procédé de construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2017/003991 WO2018190444A1 (fr) 2017-04-13 2017-04-13 Pont de poutre en plaque composite double préfabriqué et son procédé de construction

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WO2018190444A1 true WO2018190444A1 (fr) 2018-10-18

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109723184A (zh) * 2019-02-25 2019-05-07 上海城建建设实业(集团)有限公司 分片集成式双t板结构
CN110629655A (zh) * 2019-10-09 2019-12-31 广西大学 一种采用悬挂模板体系的局部可更换板钢混凝土组合梁
CN112647421A (zh) * 2020-12-21 2021-04-13 上海宝冶集团有限公司 一种预制板梁吊装方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001254319A (ja) * 2000-03-09 2001-09-21 Nkk Corp 橋梁等の上部構造及びその施工方法
KR20110023334A (ko) * 2009-08-31 2011-03-08 연세대학교 산학협력단 거더 일체형 복공판 및 이를 이용한 가설교량
KR20120053869A (ko) * 2010-11-18 2012-05-29 한국건설기술연구원 거더연결재가 형성된 단부 프리캐스트블록을 이용한 교량시공방법
KR20160012672A (ko) * 2014-07-25 2016-02-03 김근택 프리캐스트 모듈러 교량 및 그 시공방법
KR101705002B1 (ko) * 2016-04-04 2017-02-09 김선곤 조립식 이중합성 플레이트 거더교 및 그 시공방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001254319A (ja) * 2000-03-09 2001-09-21 Nkk Corp 橋梁等の上部構造及びその施工方法
KR20110023334A (ko) * 2009-08-31 2011-03-08 연세대학교 산학협력단 거더 일체형 복공판 및 이를 이용한 가설교량
KR20120053869A (ko) * 2010-11-18 2012-05-29 한국건설기술연구원 거더연결재가 형성된 단부 프리캐스트블록을 이용한 교량시공방법
KR20160012672A (ko) * 2014-07-25 2016-02-03 김근택 프리캐스트 모듈러 교량 및 그 시공방법
KR101705002B1 (ko) * 2016-04-04 2017-02-09 김선곤 조립식 이중합성 플레이트 거더교 및 그 시공방법

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109723184A (zh) * 2019-02-25 2019-05-07 上海城建建设实业(集团)有限公司 分片集成式双t板结构
CN110629655A (zh) * 2019-10-09 2019-12-31 广西大学 一种采用悬挂模板体系的局部可更换板钢混凝土组合梁
CN112647421A (zh) * 2020-12-21 2021-04-13 上海宝冶集团有限公司 一种预制板梁吊装方法

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