WO2020143210A1 - Pied avant de coffrage mobile - Google Patents

Pied avant de coffrage mobile Download PDF

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Publication number
WO2020143210A1
WO2020143210A1 PCT/CN2019/097009 CN2019097009W WO2020143210A1 WO 2020143210 A1 WO2020143210 A1 WO 2020143210A1 CN 2019097009 W CN2019097009 W CN 2019097009W WO 2020143210 A1 WO2020143210 A1 WO 2020143210A1
Authority
WO
WIPO (PCT)
Prior art keywords
leg
beams
support frame
bridge pier
middle leg
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/097009
Other languages
English (en)
Chinese (zh)
Inventor
徐田
唐娜娜
刘方杰
胡元伦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Hengkun Machinery Co Ltd
Original Assignee
Shandong Hengkun Machinery Co Ltd
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 Shandong Hengkun Machinery Co Ltd filed Critical Shandong Hengkun Machinery Co Ltd
Publication of WO2020143210A1 publication Critical patent/WO2020143210A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Definitions

  • the invention relates to the technical field of bridge construction machinery, in particular to a front leg of a movable formwork.
  • the front leg In the conventional upward mobile formwork, the front leg is supported on the top of the pier. Due to the space interference between the front leg and the middle leg, the front leg can only be placed in the middle of the pier top, and the outer space is used to install the middle leg.
  • This layout causes the top of the front legs to be supported only on the inside of the main beam and the bridge of the nose, which causes the center of gravity to be outside the fulcrum during the process of moving the formwork through holes.
  • the eccentric through holes will reduce the safety of the moving formwork.
  • the present invention provides a stable support, and at the same time avoids the front leg of the mobile formwork that interferes with the space of the middle leg when the mobile formwork moves vertically through the hole.
  • a front leg of a movable formwork includes a bridge pier, a box girder above the bridge pier, a middle leg installed on the bridge pier and passing through the box girder, a jacking cylinder arranged at the upper end of the middle leg, and horizontally mounted on the middle jacking
  • Two support frames are respectively located under the corresponding main beams on the same side, the upper end of the support frame is connected to the main beam through the walking mechanism, and the support frame moves along the length of the main beam under the action of the walking mechanism;
  • each support frame is horizontally installed with a pin beam I via a pin shaft, and the front and rear sides of the lower end of each support frame are horizontally mounted with a pin beam III via a pin shaft III;
  • the pin II is inserted into the inner ends of the two upper beams.
  • the distance between the two upper beams is greater than The width of the middle leg;
  • the connecting block When the two bottom beams on the left and right sides of the front or back of the bridge pier rotate to be in a straight line, the connecting block is arranged between the two bottom beams, and the right end of the connecting block is connected to the right bottom beam by bolts. The left end of the connecting block is connected to the bottom crossbeam on the left side by bolts.
  • the connecting block When the connecting block is removed and the two bottom crossbeams located on the left and right sides of the front or rear end of the middle leg turn inward 90 degrees to be parallel to each other, they are in the middle
  • the distance between the two bottom beams on the left and right sides of the outrigger is greater than the width of the middle outrigger.
  • the above-mentioned walking mechanism includes a hanging beam mounted on the upper end of the support frame, and a roller wheel rotatably mounted on the upper end of the hanging beam.
  • the roller wheel is rollingly disposed on the outer flange of the main beam.
  • the beneficial effects of the present invention are: when the middle leg moves with the moved mold base, it enters the area between the two bottom crossbeams of the front end and the rear end that have been turned over, and enters the area between the two upper crossbeams that are turned over, and finally from the front leg Move out in the middle, so that the middle leg follows the whole through hole of the moving mold frame and is seated with the next span. Since the two support frames of the front leg are located on the left and right sides of the middle leg, the support structure is changed. Compared with the structure of the traditional mobile formwork supported by a single fulcrum at the center of gravity, it does not cause eccentricity. At the same time, when the through hole of the formwork is moved, the upper cross beam and the bottom cross beam are turned over to effectively avoid the space interference problem with the front leg when the middle leg moves.
  • Figure 1 is a schematic structural view of the present invention
  • FIG. 2 is a schematic view of the structure of the roller portion of the present invention.
  • FIG. 3 is a schematic diagram of the state of the middle legs and the front legs of the present invention in position
  • FIG. 4 is a schematic diagram of the present invention to remove the front end connection block
  • FIG. 5 is a schematic diagram of removing the connection block of the back end of the present invention.
  • FIG. 6 is a schematic structural view of the bottom beam of the front end of the present invention after being rotated 90 degrees;
  • FIG. 7 is a schematic structural view of the upper beam and the bottom beam at the rear end of the present invention rotated 90 degrees;
  • FIG. 8 is a schematic structural view of the front leg of the present invention moving out relative to the middle leg;
  • a front leg of a mobile formwork includes a pier 1, a box girder 14 located above the pier 1, a middle leg 2 installed on the pier 1 and passing through the box girder 14, and provided on the middle support
  • the lifting cylinder at the upper end of the leg 2 the distribution beam 3 horizontally installed at the upper end of the middle lifting cylinder and located directly above the box beam 14, the main beams 4 respectively installed at the left and right ends below the distribution beam 3, and also includes the box beam 14 and Front legs between piers 1.
  • the front legs include:
  • Two support frames 5 are respectively located under the corresponding main beam 4 on the same side.
  • the upper end of the support frame 5 is connected to the main beam 4 through the walking mechanism.
  • the support frame 5 moves along the length of the main beam 4 under the action of the walking mechanism ;
  • the upper beam 8 is horizontally installed at the middle of the upper end of each support frame 5 via a pin shaft I9, and the bottom beam 11 is horizontally installed at the front and rear sides of each lower end of each support frame 5 via a pin shaft III12;
  • the pin II 10 is inserted into the inner ends of the two upper beams 8.
  • the two upper beams 8 are rotated 90 degrees inward to be parallel to each other, the two upper beams 8 The distance between them is greater than the width of the middle leg 2; when the two bottom beams 11 on the left and right sides of the front or rear ends of the bridge pier 2 rotate to lie in a straight line, the connecting block 13 is arranged between the two bottom beams 11, the connecting block The right end of 13 is connected to the bottom beam 11 on the right by bolts, and the left end of the connection block 13 is connected to the bottom beam 11 on the left by bolts.
  • connection block 13 When the connection block 13 is removed and located at the front or rear of the middle leg 2 When the two bottom beams 11 on the left and right sides of the end turn inward 90 degrees to be parallel to each other, the distance between the two bottom beams 11 on the left and right sides of the middle leg 2 is greater than the width of the middle leg 2.
  • the middle leg 2 is connected to the bridge pier 1
  • the upper end of the middle leg 2 is connected to the distribution beam 3 through a jacking cylinder
  • the jacking cylinder is connected to the distribution beam 3
  • the main The beam 4 is connected to the distribution beam
  • the two upper beams 8 are rotated to lie in a straight line
  • the inner ends are inserted and fixed by pins II10.
  • the two bottom crossbeams 11 are connected and fixed by connecting blocks 13.
  • the bottom crossbeams 11 and the upper crossbeams 8 on the front and rear sides of the bridge pier 1 are located between the middle legs 2 on the front and rear sides.
  • the steel bar is lashed on the pier 1, and then the concrete is poured to make the box beam 14.
  • the middle and small carts moving the formwork support the main beam 4 and release the force of the middle legs 2.
  • the connecting block 13 is removed, and as shown in FIG. 5, the bottom beams 11 on the left and right sides of the rear end of the pier 1 are turned inward through the pin shaft III12 to be parallel to the longitudinal direction of the box beam 14, and the middle support
  • the leg 2 moves vertically through the hole with the moved formwork as a whole, as shown in FIG. 6, the middle leg at the rear end enters between the two bottom crossbeams 11 which have turned over at the rear end of the front leg, as shown in FIG.
  • the support structure is changed. Compared with the structure of the traditional mobile formwork supported by a single fulcrum at the center of gravity, it does not cause eccentricity. At the same time, when moving the through hole of the mold frame, the upper cross beam 8 and the bottom cross beam 11 are turned over to effectively avoid the spatial interference problem with the front leg when the middle leg moves.
  • the walking mechanism may have a structure including a hanging beam 6 mounted on the upper end of the support frame 5, and a roller 7 rotatingly mounted on the upper end of the hanging beam 6.
  • the roller 7 is provided on the outer side of the main beam 4 to roll On the flange. When the whole formwork is moved through the hole, the front legs roll along the flange of the main beam 4 through the roller 7 to achieve movement relative to the main beam 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

L'invention concerne un pied avant d'un coffrage mobile, où un pied central (2) entre dans une zone entre deux poutres inférieures (11), à des extrémités avant et arrière, qui ont été tournées lorsque le pied central se déplace avec le coffrage mobile, entre dans une zone entre deux poutres supérieures (8) qui sont tournées, et est finalement retiré du pied avant, de telle sorte que le pied central (2) suit l'ensemble du trou traversant du coffrage mobile et est placé en position avec la portée suivante. Comme deux cadres de support (5) du pied avant sont situés sur les côtés gauche et droit du pied central (2), la structure de support est changée. Par rapport à la structure de coffrages mobiles classiques supportés par un point d'appui unique au centre de gravité, la présente invention ne présente pas de problème d'excentricité. Simultanément, lors du déplacement du trou traversant du coffrage, les poutres supérieures (8) et les poutres inférieures (11) sont tournées, de sorte que le problème d'interférence spatiale avec le pied avant est efficacement évité lorsque le pied central (2) est déplacé.
PCT/CN2019/097009 2019-01-09 2019-07-22 Pied avant de coffrage mobile Ceased WO2020143210A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910017498.5 2019-01-09
CN201910017498.5A CN109653100A (zh) 2019-01-09 2019-01-09 一种移动模架前支腿

Publications (1)

Publication Number Publication Date
WO2020143210A1 true WO2020143210A1 (fr) 2020-07-16

Family

ID=66119078

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/097009 Ceased WO2020143210A1 (fr) 2019-01-09 2019-07-22 Pied avant de coffrage mobile

Country Status (2)

Country Link
CN (1) CN109653100A (fr)
WO (1) WO2020143210A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109653100A (zh) * 2019-01-09 2019-04-19 山东恒堃机械有限公司 一种移动模架前支腿
CN113981835B (zh) * 2021-11-24 2024-04-09 通号建设集团有限公司 移动模架及其过孔方法

Citations (8)

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CN201695344U (zh) * 2010-02-08 2011-01-05 中铁二十五局集团第三工程有限公司 一种上行式移动模架
CN102367651A (zh) * 2011-09-09 2012-03-07 腾达建设集团股份有限公司 U型混凝土梁架桥机
CN202298472U (zh) * 2011-09-09 2012-07-04 腾达建设集团股份有限公司 架桥机三号支腿
CN102720131A (zh) * 2011-03-31 2012-10-10 江苏恩纳斯重工机械有限公司 一种后推进吊架
CN107090779A (zh) * 2017-06-14 2017-08-25 山东恒堃机械有限公司 一种移动模架前支腿行走装置
CN107227690A (zh) * 2017-08-07 2017-10-03 山东恒堃机械有限公司 一种上行式移动模架中支腿结构
CN206928191U (zh) * 2017-06-20 2018-01-26 山东恒堃机械有限公司 一种移动模架o形支腿
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KR100928063B1 (ko) * 2007-10-30 2009-11-23 허용호 셀프 런칭 이동식 거푸집
CN101892633B (zh) * 2010-07-22 2012-03-14 中交第二航务工程局有限公司 自行式小半径移动模架
CN102720134A (zh) * 2011-03-31 2012-10-10 江苏恩纳斯重工机械有限公司 横梁旋转折叠的移动模架造桥机
CN207633229U (zh) * 2017-12-13 2018-07-20 中国铁建大桥工程局集团有限公司 公路预应力砼箱梁移动模架
CN207919375U (zh) * 2018-02-11 2018-09-28 郑州新大方重工科技有限公司 用于大吨位预应力混凝土箱梁施工设备架桥机的前支腿
CN108442255B (zh) * 2018-05-23 2024-04-19 郑州新大方重工科技有限公司 一种移动模架造桥机及现浇造桥的施工方法
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Publication number Priority date Publication date Assignee Title
CN201695344U (zh) * 2010-02-08 2011-01-05 中铁二十五局集团第三工程有限公司 一种上行式移动模架
CN102720131A (zh) * 2011-03-31 2012-10-10 江苏恩纳斯重工机械有限公司 一种后推进吊架
CN102367651A (zh) * 2011-09-09 2012-03-07 腾达建设集团股份有限公司 U型混凝土梁架桥机
CN202298472U (zh) * 2011-09-09 2012-07-04 腾达建设集团股份有限公司 架桥机三号支腿
CN107090779A (zh) * 2017-06-14 2017-08-25 山东恒堃机械有限公司 一种移动模架前支腿行走装置
CN206928191U (zh) * 2017-06-20 2018-01-26 山东恒堃机械有限公司 一种移动模架o形支腿
CN107227690A (zh) * 2017-08-07 2017-10-03 山东恒堃机械有限公司 一种上行式移动模架中支腿结构
CN109653100A (zh) * 2019-01-09 2019-04-19 山东恒堃机械有限公司 一种移动模架前支腿

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