WO2021031354A1 - Procédé pour coffrage mobile traversant un trou, et dispositif pour coffrage mobile traversant un trou - Google Patents

Procédé pour coffrage mobile traversant un trou, et dispositif pour coffrage mobile traversant un trou Download PDF

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Publication number
WO2021031354A1
WO2021031354A1 PCT/CN2019/115005 CN2019115005W WO2021031354A1 WO 2021031354 A1 WO2021031354 A1 WO 2021031354A1 CN 2019115005 W CN2019115005 W CN 2019115005W WO 2021031354 A1 WO2021031354 A1 WO 2021031354A1
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WO
WIPO (PCT)
Prior art keywords
corbel
formwork
self
template
hole
Prior art date
Application number
PCT/CN2019/115005
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English (en)
Chinese (zh)
Inventor
王兴阔
王国光
白宾
韩军霞
邢希瑞
李龙
马壮
田礼民
Original Assignee
山东省路桥集团有限公司
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 山东省路桥集团有限公司 filed Critical 山东省路桥集团有限公司
Publication of WO2021031354A1 publication Critical patent/WO2021031354A1/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
    • E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-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 invention relates to a method and a hole device for a mobile formwork via hole, which are applied to the construction of a downward self-propelled mobile formwork bridge with small spacing between box girder parallel piers and columns with many restrictions, and belongs to the technical field of cast-in-place concrete box girder construction.
  • the downward self-propelled mobile formwork is a special equipment for cast-in-place concrete box girder.
  • the railway bridge box girder is connected side by side, the distance between the piers is small, the adjacent box girder is poured first, and at the same time, the horizontal mold opening of the formwork at the upper end of the main girder is restricted.
  • the conventional mobile mold base opens the mold The form of vias is difficult to meet the requirements of longitudinal movement vias.
  • the main beam drives the template to open the mold horizontally to realize the hole.
  • the template is moved across the upper part of the main beam to realize the mold hole.
  • the via hole cannot be satisfied, and the mobile formwork cannot be used for construction, which affects the construction schedule and the construction is difficult, especially for the poor construction economy of the porous cast-in-place box girder.
  • the purpose of the present invention is to provide a mobile formwork through hole method and through hole device, which can not affect the construction of the downward self-propelled mobile formwork And via requirements.
  • a method for passing through a movable mold base includes the following steps:
  • Corbel legs and corbels are set on the pier caps, self-propelled trolleys are set above the corbels, and longitudinal beams are set above the self-propelled trolleys.
  • the longitudinal beams include the main beam and the nose bridge on both sides of the main beam, above the longitudinal beam Set the template, the main beam is connected with the connecting beam, the middle beam and the rear beam in the beam are set on the poured concrete box girder, the front beam in the beam is set on the top of the pier in the traveling direction of the formwork, and the middle and front beam and the rear beam in the beam Connect the bridge of the nose, which is located on both sides of the main bridge and slidably installed on the self-propelled trolley;
  • a middle mechanical top is set on the connecting beam, a side mechanical top is set on the main beam, the middle template of the mobile mold base is set on the middle mechanical top, the side template of the mobile mold base is set on the side mechanical top, and the template is adjusted after the pre-compression is completed. Elevation, ready to pour concrete after lifting and closing the mold;
  • a through hole device for a mobile mold base through hole method including a template, a longitudinal beam, a tie beam, a cross beam, a bottom mold work cart, a corbel support and a lifting mechanism;
  • the template includes a middle template and side templates located on both sides of the middle template
  • the longitudinal beam includes the main beam and the nose bridge on both sides of the main beam, which are arranged along the length of the template;
  • the beam includes the front beam, the middle beam and the rear beam, which are arranged in sequence, and are arranged along the width direction of the template; the two ends of the connecting beam are connected with the main beam ;
  • the bottom mold work cart is set below the connecting beam, and the bottom mold work cart can move along the length of the main beam;
  • the corbel support is set between the bearing platform and the self-propelled trolley;
  • the self-propelled trolley is set above the corbel support, and the self-propelled trolley
  • the nose bridge is installed on the upper slide;
  • the longitudinally moving through hole unit includes a pair of linear
  • the main beam is a box structure welded by plates
  • the nose bridge is a truss structure welded by plates and section steel.
  • the connecting beam is an I-shaped structure welded by plates.
  • the corbel support includes a corbel and a corbel leg, the corbel is a triangular structure welded by plates, and the corbel leg is a box structure welded by plates.
  • the formwork on both sides translates on the top of the main beam to both sides and then moves longitudinally with the main beam.
  • the middle bottom form keeps the original horizontal position unchanged.
  • the movable formwork is moved across the hole from the middle of the top of the pier, and the rear cross beam and the rear nose bridge are used as rear fulcrums.
  • the auxiliary mobile formwork moves through the holes vertically, which solves the problem that the downward self-propelled formwork cannot be suitable for space-constrained construction projects.
  • it can save a lot of manpower and material resources, greatly shorten the construction period and save Cost, the advantages of this equipment can be reflected in projects with tight construction period and high construction difficulty, and its technicality, applicability and economy are feasible.
  • Figure 1 is a cross-sectional view of the mobile formwork in the pouring state of the selected embodiment of the invention patent
  • Figure 2 is a cross-sectional view of the moving form of the movable mold carrier according to the selected embodiment of the patent of the present invention
  • Figure 3 is a cross-sectional view of the front crossbeam of the movable formwork according to the selected embodiment of the invention patent;
  • Figure 5 is a cross-sectional view of the rear cross beam of the movable formwork according to the selected embodiment of the invention patent;
  • Figure 6 is a longitudinal construction drawing of the mobile formwork of the selected embodiment of the invention patent.
  • Fig. 7 is an enlarged schematic diagram of the selected embodiment of the patent of the present invention after removing the pillars and the corbel cart.
  • 1- template 2- main beam; 3- nose bridge; 4- beam; 5- self-propelled trolley; 6-corbel; 7-corbel leg; 8-front beam; 9-middle beam; 10-back Cross beam, 11-bottom mold working trolley, 12-middle mechanical top, 13-side mechanical top, 14-side template, 15-middle bottom mold, 16-horizontal cylinder.
  • Corbel legs 7 and corbel 6 are set on the pier column, self-propelled trolley 5 is set above the corbel 6, and longitudinal beams are set above the self-propelled trolley 5.
  • the longitudinal beams include the main beam 2 and the two sides of the main beam 2. Nose bridge 3, a formwork is set above the longitudinal beam, the main beam 2 is connected to the connecting beam 4, and the formwork is set above the longitudinal beam.
  • the middle beam 9 and the rear beam 10 of the beam are set on the cast concrete box beam, and the front beam 8 of the beam is set on On the top of the pier in the forward direction of the formwork, the front cross beam 8 and the rear cross beam 10 in the cross beam are connected to the nose bridge 3, which is located on both sides of the main beam and is slidably installed on the self-propelled trolley 5;
  • the connecting beam 4 is provided with a middle mechanical roof 12, the main beam 2 is provided with a side mechanical roof 13, the middle template 15 of the mobile formwork is set on the middle mechanical roof 12, and the side formwork 14 of the mobile formwork is set on the side mechanical roof 13. After the pre-compression is completed, adjust the height of the formwork, and prepare to pour the concrete after lifting and closing the form;
  • the self-propelled trolley 5 moves the linear rolling guide pair to cooperate with the cross beam 10 to longitudinally move and slide until the mobile formwork is moved longitudinally in place, and the mold is closed and lifted for the next hole pouring construction.
  • a lateral micro-mold opening mobile mold base through hole device including a template, a longitudinal beam, a connecting beam 4, a cross beam, a bottom mold work car 11, a corbel support and lifting mechanism, wherein:
  • the formwork includes a middle formwork 15 and a side formwork 14 located on both sides of the middle formwork 15.
  • the bottom of the side formwork 14 is equipped with H-shaped steel.
  • This structural formwork mainly considers the influence of the space on both sides and the cushion stone on the top of the pier.
  • the range is moved horizontally outward through the horizontal cylinder 16 arranged horizontally, the position of the middle template 15 is not moving, and it can only be moved longitudinally forward between the cushion stones on the top of the pier driven by the beam;
  • the longitudinal beams include the main beam 2 and the nose bridges 3 located on both sides of the main beam 2, which are arranged along the length of the formwork.
  • the main beam 2 does not move horizontally, but the longitudinal movement drives the longitudinal movement of the formwork 14 on both sides;
  • the crossbeam includes a front crossbeam 8, a middle crossbeam 9 and a rear crossbeam 10 arranged in sequence, which are arranged along the width direction of the formwork;
  • the connecting beam 4 is connected with the main beam 2 by bolts at both ends;
  • the bottom mold work cart 11 is arranged under the connecting beam, and the bottom mold work cart 11 can move along the length direction of the main beam 2;
  • the longitudinally moving through hole unit includes a linear rolling guide pair located between the nose bridge 3 and the rear cross beam 10, and between the nose bridge 3 and the front cross beam 8.
  • the upper part of the nose bridge 3 is welded with a T-shaped guide rail
  • the lower part of the rear cross beam 10 is provided with a roller mechanism. Set the reserved holes for the lifting beam, the lower roller mechanism of the rear cross beam 10 and the upper T-shaped track of the nose bridge 3 are clamped together, and use it as a fulcrum to assist the moving mold carrier to move longitudinally through the hole. After the rollers are separated from the T-shaped guide rail, the rear cross beam 10 Move to the next station;
  • the two ends of the lifting mechanism are respectively connected to the main beam 2 and the formwork.
  • the lifting mechanism includes a side mechanical top 13 for lifting the side formwork 14 and a middle mechanical top 12 for lifting the middle formwork 15.
  • the two ends of the side mechanical top 13 are respectively connected to the main
  • the two ends of the beam 2 and the side formwork 14 and the middle mechanical roof 12 are respectively connected to the connecting beam and the middle formwork 15.
  • the main beam 2 is a box structure welded by plates, and the main beam 2 bears the concrete force during the construction of the box beam.
  • the nose bridge 3 is a truss structure welded by plate and section steel, which is mainly used for the longitudinal walking of the movable formwork.
  • the tie beam is a plate-welded I-shaped structure, which is used to horizontally connect the main beam, the force when pouring concrete, and the longitudinal walking of the middle part of the template.
  • the tie beam needs to drive the middle bottom mold to move longitudinally, so the connecting beam
  • the tie beams cannot be fully opened for longitudinal movement of the formwork, and all the tie beams are opened will affect the overall stability of the formwork.
  • the connecting beams are opened in sequence, and then the corresponding piers are closed to move the formwork longitudinally through the holes.
  • the corbel support includes a corbel 6 and a corbel leg 7.
  • the corbel 6 is a triangular structure welded by plates. Due to space constraints and the micro-opening form of the movable mold base, this solution is designed as a small triangle
  • the corbel structure is used to bear the force of the entire movable formwork during pouring and walking.
  • the corbel leg 7 is a box-type structure welded by plates.

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

Abstract

L'invention concerne un procédé pour coffrage mobile traversant un trou, et un dispositif pour coffrage mobile traversant un trou, qui ne peut pas affecter les exigences de construction et les exigences pour faire passer à travers un trou un coffrage mobile automoteur sous le tablier. Le procédé pour coffrage mobile traversant un trou comprend les étapes suivantes consistant à : assembler un coffrage mobile en place, régler l'élévation d'une forme après achèvement de la pré-compression, et préparer au coulage de béton après levage et assemblage de forme ; faire durcir le béton après achèvement de la coulée ; suspendre l'ensemble du système de coffrage mobile au moyen d'une traverse avant, d'une traverse centrale et d'une traverse arrière, démonter un support et un pied de soutien de support, et déplacer un chariot automoteur, le support et le pied de soutien de support jusqu'à la position de la pile de construction suivante ; après positionnement en place, supporter l'ensemble du système de coffrage mobile, démonter le système de suspension de la traverse centrale, le coffrage mobile tombe en tant qu'ensemble, déplacer le coffrage mobile longitudinalement sous l'effet de la poussée du chariot automoteur, et la position fixe de la traverse arrière ; déplacer la traverse arrière longitudinalement et coulisser celle-ci jusqu'à ce que le coffrage mobile, dans son ensemble, se déplace longitudinalement en position, et après que celui-ci arrive en place, réaliser un assemblage de forme et un levage pour achever la construction par coulage du trou suivant.
PCT/CN2019/115005 2019-08-20 2019-11-01 Procédé pour coffrage mobile traversant un trou, et dispositif pour coffrage mobile traversant un trou WO2021031354A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910766763.XA CN110468715B (zh) 2019-08-20 2019-08-20 移动模架过孔方法及过孔装置
CN201910766763.X 2019-08-20

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WO2021031354A1 true WO2021031354A1 (fr) 2021-02-25

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN113026522A (zh) * 2021-03-22 2021-06-25 北京市政建设集团有限责任公司 一种桥梁钢箱梁安装结构及施工工艺
CN114263122A (zh) * 2022-01-17 2022-04-01 中国水利水电第四工程局有限公司 一种桥梁盖梁骨架及模板整体吊装施工方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113073556B (zh) * 2021-03-19 2023-12-22 中铁大桥局集团第一工程有限公司 一种下行式梁模合体移动模架施工方法
CN113622305A (zh) * 2021-05-24 2021-11-09 山东省路桥集团有限公司 上承式移动模架横移系统及施工方法

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CN101581073A (zh) * 2008-07-10 2009-11-18 中铁大桥局股份有限公司 下行式移动模架及其走行方法
JP2011052375A (ja) * 2009-08-31 2011-03-17 Sumitomo Mitsui Construction Co Ltd 押し出し桁の後方支持装置及び押し出し架設方法
CN102691270A (zh) * 2012-06-27 2012-09-26 中铁四局集团机电设备安装有限公司 一种高效快速移动模架
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KR100949585B1 (ko) * 2007-11-28 2010-03-25 주식회사 코아이엔씨 프리 스트레스 콘크리트 보의 시공방법
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CN101581073A (zh) * 2008-07-10 2009-11-18 中铁大桥局股份有限公司 下行式移动模架及其走行方法
JP2011052375A (ja) * 2009-08-31 2011-03-17 Sumitomo Mitsui Construction Co Ltd 押し出し桁の後方支持装置及び押し出し架設方法
CN102691270A (zh) * 2012-06-27 2012-09-26 中铁四局集团机电设备安装有限公司 一种高效快速移动模架
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113026522A (zh) * 2021-03-22 2021-06-25 北京市政建设集团有限责任公司 一种桥梁钢箱梁安装结构及施工工艺
CN114263122A (zh) * 2022-01-17 2022-04-01 中国水利水电第四工程局有限公司 一种桥梁盖梁骨架及模板整体吊装施工方法

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CN110468715A (zh) 2019-11-19

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