WO2013052017A1 - Système d'échafaudage mobile du type auto-lanceur - Google Patents

Système d'échafaudage mobile du type auto-lanceur Download PDF

Info

Publication number
WO2013052017A1
WO2013052017A1 PCT/TH2011/000046 TH2011000046W WO2013052017A1 WO 2013052017 A1 WO2013052017 A1 WO 2013052017A1 TH 2011000046 W TH2011000046 W TH 2011000046W WO 2013052017 A1 WO2013052017 A1 WO 2013052017A1
Authority
WO
WIPO (PCT)
Prior art keywords
launching
support
self
scaffolding system
movable scaffolding
Prior art date
Application number
PCT/TH2011/000046
Other languages
English (en)
Inventor
Martin PEDRO BAE
Original Assignee
Nrs Consulting 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 Nrs Consulting Co., Ltd. filed Critical Nrs Consulting Co., Ltd.
Priority to KR1020147011824A priority Critical patent/KR20140084107A/ko
Priority to PCT/TH2011/000046 priority patent/WO2013052017A1/fr
Priority to CN201180074842.6A priority patent/CN103998690A/zh
Priority to US14/350,338 priority patent/US20150021119A1/en
Priority to EP11778722.6A priority patent/EP2764162A1/fr
Publication of WO2013052017A1 publication Critical patent/WO2013052017A1/fr

Links

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
    • 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

Definitions

  • the Movable Scaffolding System (MSS) for bridge construction may offer advantages over conventional construction (Conventional Scaffolding), including creating minimal disturbance to surroundings, providing a more concentrated work area for superstructure assembly, and possibly increased worker safety given the improved erection environment.
  • MSS Movable Scaffolding System
  • Movable Scaffolding Systems are conceived to be used in the construction of cast in- situ concrete bridges and they are travelling steel structures supporting the formwork that gives shape to the bridge.
  • the MSS is built to be backed off from the hardened concrete, moved to a new position, and precisely adjusted for concreting the next span.
  • MSS System The Movable Scaffolding System was developed in the mid 1970's. The system has since been further developed and has become a very popular system for constructing bridges worldwide. The ability to adapt the MSS to different cross sections allows the contractor to use the equipment for different projects elsewhere. MSS System
  • the MSS consists of a support structure spanning between two piers from which formwork is either supported or suspended.
  • the inner formwork (core form) is collapsible and can run on a rail system to allow easy relocation to the next span.
  • the system is designed so that the outer formwork can be opened sufficiently to allow it to pass around the bridge columns during the launching process. After launching the formwork is closed again and after setting to the correct alignment, placement of reinforcement can start.
  • the MSS can be divided into two types, namely, (i) underlane (or underslung) and (ii) overlane (or overhead).
  • the underlane type of MSS has two parallel girders, which supports the formwork.
  • the overlane type of MSS has one or two main girders from which the formwork is suspended.
  • type of bridge deck e.g. single cell, twin cell, double T
  • height of columns e.g. single cell, twin cell, double T
  • NRS is the first in the world to develop the Self-launching MSS (SL-MSS) in order to solve the problems related to the difficulties in handling pier support brackets over water as well as on high piers.
  • This system is able to transfer forward and mount the pier support brackets without any need of an independent crane.
  • the SL-MSS has been successfully used in the construction of several major bridge projects worldwide and is widely sought after due to its cost and operational efficiency.
  • the existing problems related to current MSS include requirement of long cycle time, inability to deliverable whole rebar cage simultaneously or all at once, requirement of several block-outs in the superstructure, requirement of hanging bars passing through the superstructure deck to support the formwork, requirement of other equipments necessary for relocation of the supports and, last but not least, the complexity of its operation as well as the labor intensive work.
  • This invention provides the new MSS with the self-launching system used for cast-in- situ bridges which can offer many cost-saving advantages to the bridge construction project.
  • Figures 1-A and 1-B show General Arrangement: Elevation and Plan
  • Figures 2-A and 2-B show Section A at Hanger Truss: Rebar cage installation &
  • Figures 3-A and 3-B show Section A at Hanger Truss: Launching position at typical pier & portal pier Figures 4-A, 4-B and 4-C Section B at Rear Support: Rebar cage installation, concreting and launching positions
  • FIGS 5-A and 5-B show Section C at Front support: Rebar cage installation and concreting positions
  • Figures 6-A and 6-B show Section C at Front support: Launching position at typical pier & portal pier
  • Figures 7-A and 7-B show Section D at Middle launching support: Launching and relocating positions
  • Figures 8-A and 8-B show Section E at Front launching support: Launching and relocating positions
  • Figures 9-A and 9-B show Launching sequence: Stage 1 and 2
  • Figures 10- A and 10-B show Launching sequence: Stage 3 and 4
  • the self-launching movable scaffolding system (SL-MSS) according to this invention comprises of
  • Rear Nose 120
  • Figure 1-A which provides a transfer of load to Rear support (400) during casting and launching is equipped with the mono-rail (701) for electrical lifting hoist (702) used for rebar cage (900) loading.
  • Rear Support (400) which provides support to the MSS during rebar cage (900) installation, casting, and launching.
  • the said rear support (400) can be opened in the center for rebar cage (900) to pass through as shown in Figure 4-A and unlike the other previous systems that require the additional rear support for casting, the said Rear support (400) of this invention is now designed to take the casting load.
  • the foldable legs (401), parts of the Rear support (400), are folded up to support directly to the main girder (100) during casting and launching.
  • Rear support (400) is set for casting stage.
  • the rear support main jacks (402) are activated and transferred load to existing bridge.
  • the rear support main jacks (402) are deactivated and load is transferred pass through the express rollers (403) to the existing bridge.
  • the said Rear Support (400) is fixed to the main girder (100). No other external equipment is required for its relocation.
  • Front Support (410) which provides support to the MSS during rebar cage (900) installation and casting. As shown in Figure 5- A, The said Front support (410) is opened at the center for rebar cage (900) to pass through. Once finish placing the rebar cage (900), tension bars (415) are installed and engaged to the front support
  • the front support main jacks (413) are activated and transferred load from main girder (100) to the front support (410).
  • the Front support legs (412) which are parts of the front support (410) provide a transfer of load further to column footing.
  • the lower parts of the front support (410) as shown in Figure 6-B can be disconnected when launching pass the portal area (416).
  • the said front support (410) is fixed to the main girder (100). No other external equipment is required for its relocation.
  • Front Launching Support (420) provides support to the MSS during launching operation.
  • the said front launching support (420) is set and secured on the pier top (425) as shown in Figure 8-A with the launching wagon (500) at top which allows the front nose (1 0) and the main girder (100) to glide or move over to the new set position.
  • the said front launching support (420) can be dissembled from pier and suspended to front nose (110) as shown in Figure 8-B in order to relocate to the next pier.
  • Middle Launching Support (430) provides support to the MSS during launching operation.
  • the said middle launching support (430) is suspended to the front nose (110) as shown in Figure 1-A during casting.
  • the said middle launching support (430) is moved back and set on already cast concrete, as shown in the dotted line in Figure 1 -A , and activated to support the MSS during launching.
  • the cross section Figure 7- A and 7-B show the middle launching support (430) in active and inactive stages respectively.
  • the said trolley system provides relocation to the said Middle lunching support (430) and the said Front launching support (420) and also provides the rebar cage (900) delivery.
  • the said trolley system is composed of the mono-rail (701) set along the rear nose (120), main girder (100), and front nose (1 10) and the electrical lifting hoist (702).
  • the launching sequence of the said SL-MSS comprises of the concreting and launching stages as the following:
  • Middle launching support (430) is suspended to the front nose (110).
  • Front launching support (420) is ready set on top of the next pier.
  • MSS is supported by middle launching support (430) and rear support (400).
  • MSS is supported by temporary tower (501) at the rear and the middle launching support (430) at the front.
  • Pre-stress cost reduction (up to 30%) by reduction of deck pre-stressing amount (no cantilever moments) or reduction in number of anchorages & couplers in the pre- stressing of the deck and reduction in amount of pre-stressing operations in the deck Reduction in number of high risk operations (movements & launching)
  • Prefabricated rebar cage can be lifted and placed by MSS

Landscapes

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

Abstract

Cette invention concerne un système d'échafaudage mobile du type auto-lanceur, comprenant une poutre principale (100) qui présente un nez avant (110) à l'extrémité avant afin de transférer la charge du système vers le support lors du lancement, un nez arrière (120) assurant un transfert de charge vers le support arrière (400) lors de la coulée et du lancement. Ledit nez arrière (120) est doté d'un système de rails (701) pour l'acheminement et la remise en place de la cage d'armature par un système de chariot (700). Ledit système comprend en outre des supports verticaux (200) assurant le transfert des charges du coffrage (800) vers la poutre principale (100) lors de la coulée, ainsi qu'un support avant et arrière pouvant être ouverts au centre en vue de l'insertion de la cage d'armature, un support intermédiaire et un wagon de lancement.
PCT/TH2011/000046 2011-10-07 2011-10-07 Système d'échafaudage mobile du type auto-lanceur WO2013052017A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020147011824A KR20140084107A (ko) 2011-10-07 2011-10-07 셀프-런칭 이동식 비계공법
PCT/TH2011/000046 WO2013052017A1 (fr) 2011-10-07 2011-10-07 Système d'échafaudage mobile du type auto-lanceur
CN201180074842.6A CN103998690A (zh) 2011-10-07 2011-10-07 自行式可移动模架系统
US14/350,338 US20150021119A1 (en) 2011-10-07 2011-10-07 Self-launching movable scaffolding system
EP11778722.6A EP2764162A1 (fr) 2011-10-07 2011-10-07 Système d'échafaudage mobile du type auto-lanceur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TH2011/000046 WO2013052017A1 (fr) 2011-10-07 2011-10-07 Système d'échafaudage mobile du type auto-lanceur

Publications (1)

Publication Number Publication Date
WO2013052017A1 true WO2013052017A1 (fr) 2013-04-11

Family

ID=44906351

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TH2011/000046 WO2013052017A1 (fr) 2011-10-07 2011-10-07 Système d'échafaudage mobile du type auto-lanceur

Country Status (5)

Country Link
US (1) US20150021119A1 (fr)
EP (1) EP2764162A1 (fr)
KR (1) KR20140084107A (fr)
CN (1) CN103998690A (fr)
WO (1) WO2013052017A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014200443A1 (fr) * 2013-06-11 2014-12-18 Nrs Consulting Co., Ltd. Système d'échafaudage mobile à lancement autonome
WO2015034444A1 (fr) * 2013-09-06 2015-03-12 Nrs Consulting Co., Ltd. Nouveaux systèmes de portique de lancement auto-lanceur suspendu
CN105887690A (zh) * 2016-05-05 2016-08-24 中建五局土木工程有限公司 一种上行式移动模架原位拆除施工方法
CN106149639A (zh) * 2016-08-30 2016-11-23 郑州新大方重工科技有限公司 一种用于单矩形顶口封闭型水利渡槽施工的移动模架
WO2017213532A1 (fr) 2016-06-08 2017-12-14 Pgpi - Marcas E Patentes, S.A. Cintre ou lanceur supérieur en coffrage à section inférieure évidée
CN108442255A (zh) * 2018-05-23 2018-08-24 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
EP3786605A1 (fr) * 2019-08-21 2021-03-03 Poly Changda Engineering Co., Ltd. Procédé de construction d'une poutre en porte-à-faux sur un pilier central
CN114645515A (zh) * 2022-03-24 2022-06-21 中国建筑土木建设有限公司 混凝土节段箱梁的浇筑设备及其浇筑方法
CN117779635A (zh) * 2024-02-27 2024-03-29 中铁四局集团有限公司 钢筋笼整体吊装入模的简支梁移动模架现浇施工方法

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WO2017147380A1 (fr) * 2016-02-24 2017-08-31 The Lubrizol Corporation Compositions lubrifiantes pour moteurs à injection directe
CN107151981B (zh) * 2016-04-29 2019-05-31 东阳市天齐知识产权运营有限公司 桥梁桥面施工装置的施工方法
CN106149566A (zh) * 2016-08-17 2016-11-23 王文龙 轨索牵引支承启闭系统
CN107100086B (zh) * 2017-06-20 2023-05-30 山东交通学院 一种移动模架在超宽墩的过孔方法及过孔装置
CN107829374B (zh) * 2017-12-13 2023-06-09 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及悬挑施工方法
CN109972655A (zh) * 2018-06-30 2019-07-05 中铁二十二局集团第三工程有限公司 一种预制管廊机械与液压组合型整体安拆钢模板及安装方法
CN111395344A (zh) * 2020-03-25 2020-07-10 中国一冶集团有限公司 一种可重复使用咬合桩定位装置及施工方法
CN114481862A (zh) * 2022-01-06 2022-05-13 中国五冶集团有限公司 移动式桁架装置及施工工艺
CN115094836B (zh) * 2022-06-23 2023-06-30 中国水利水电第八工程局有限公司 一种造槽机及造槽方法

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GB931622A (en) * 1960-03-11 1963-07-17 Strabag Bau Ag An apparatus for building concrete bridges and the like structures
DE1658587B1 (de) * 1967-10-30 1970-11-05 Dyckerhoff & Widmann Ag Einrichtung zum Herstellen mehrfeldriger Tragwerke,insbesondere Brueckenueberbauten,aus Stahl- oder Spannbeton
DE2258657B1 (de) * 1972-11-30 1974-02-07 Dyckerhoff & Widmann Ag Traegerelement zum herstellen von ruesttraegern
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014200443A1 (fr) * 2013-06-11 2014-12-18 Nrs Consulting Co., Ltd. Système d'échafaudage mobile à lancement autonome
WO2015034444A1 (fr) * 2013-09-06 2015-03-12 Nrs Consulting Co., Ltd. Nouveaux systèmes de portique de lancement auto-lanceur suspendu
CN105887690A (zh) * 2016-05-05 2016-08-24 中建五局土木工程有限公司 一种上行式移动模架原位拆除施工方法
CN105887690B (zh) * 2016-05-05 2017-09-01 中建五局土木工程有限公司 一种上行式移动模架原位拆除施工方法
WO2017213532A1 (fr) 2016-06-08 2017-12-14 Pgpi - Marcas E Patentes, S.A. Cintre ou lanceur supérieur en coffrage à section inférieure évidée
CN106149639A (zh) * 2016-08-30 2016-11-23 郑州新大方重工科技有限公司 一种用于单矩形顶口封闭型水利渡槽施工的移动模架
CN108442255A (zh) * 2018-05-23 2018-08-24 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
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
EP3786605A1 (fr) * 2019-08-21 2021-03-03 Poly Changda Engineering Co., Ltd. Procédé de construction d'une poutre en porte-à-faux sur un pilier central
CN114645515A (zh) * 2022-03-24 2022-06-21 中国建筑土木建设有限公司 混凝土节段箱梁的浇筑设备及其浇筑方法
CN114645515B (zh) * 2022-03-24 2024-04-12 中国建筑土木建设有限公司 混凝土节段箱梁的浇筑设备及其浇筑方法
CN117779635A (zh) * 2024-02-27 2024-03-29 中铁四局集团有限公司 钢筋笼整体吊装入模的简支梁移动模架现浇施工方法
CN117779635B (zh) * 2024-02-27 2024-05-14 中铁四局集团有限公司 钢筋笼整体吊装入模的简支梁移动模架现浇施工方法

Also Published As

Publication number Publication date
EP2764162A1 (fr) 2014-08-13
KR20140084107A (ko) 2014-07-04
CN103998690A (zh) 2014-08-20
US20150021119A1 (en) 2015-01-22

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