WO2015034444A1 - Nouveaux systèmes de portique de lancement auto-lanceur suspendu - Google Patents

Nouveaux systèmes de portique de lancement auto-lanceur suspendu Download PDF

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Publication number
WO2015034444A1
WO2015034444A1 PCT/TH2013/000044 TH2013000044W WO2015034444A1 WO 2015034444 A1 WO2015034444 A1 WO 2015034444A1 TH 2013000044 W TH2013000044 W TH 2013000044W WO 2015034444 A1 WO2015034444 A1 WO 2015034444A1
Authority
WO
WIPO (PCT)
Prior art keywords
launching
support
gantry
main girder
overhead
Prior art date
Application number
PCT/TH2013/000044
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 PCT/TH2013/000044 priority Critical patent/WO2015034444A1/fr
Publication of WO2015034444A1 publication Critical patent/WO2015034444A1/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
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
    • 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

  • Bridge construction can be made by different kind of equipment such as Movable Scaffolding System (MSS) for cast in-situ concrete bridges and Launching Gantries (LG) for precast segments ⁇ as well as Formtravellers for free cantilever and cable-stayed bridges.
  • MSS Movable Scaffolding System
  • LG Launching Gantries
  • NRS launching gantries The new concepts introduced in NRS launching gantries include:
  • the LG can be divided into two types, namely, (i) underlane (or underslung) and (ii) overlane (or overhead).
  • the underlane type of LG has two parallel girders which supports the bridge segments.
  • the overlane or overhead type of LG has one or two main girders from which the bridge segments are suspended under the girder(s).
  • NRS has developed in the early 90s' the innovative "hinged" concept which allows the articulation of the LG to handle segment erection and launching operation.
  • the hinge concept enables span erection on horizontal radius as small as 75m (40m span) previously never thought possible without the need of additional external temporary supports.
  • a specially designed gantry crane is also used to travel smoothly through the kinked hinges along the LG during lifting and placing of segments.
  • the hinge concept remains today a unique feature well known in the industry for erection of precast segmental bridges oh tight curves. This solution has been proven successful in many major projects particularly in Metro or Light Rail Transit projects where tight curves are qiiite common along the alignment.
  • the hinged LG offers significant advantages over the conventional straight gantries in terms of erection speed and cost of construction.
  • Figure 1 shows LG Type 1 General Arrangement: Elevation (Fig. 1 -A) and Plan (Fig. 1 -
  • FIG. 2- A shows LG Type 1 Sections: at Rear Support (Fig. 2- A) and Front Support (Fig.
  • FIG. 3 shows LG Type 1 Sections: at Suspension Beam (Fig. 3-A), Front Leg and
  • Figure 4 shows LG Type" 2 General Arrangement: Elevation (Fig. 4-A) and Plan (Fig. 4- B)
  • FIG. 5 shows LG Type 2 Sections: at Rear Support (Fig. 5- A) and Front Support (Fig.
  • Figure 6 shows LG Type 2 Hanger's positions during segment installation (Fig. 6-A), typical launching (Fig. 6-B), launching pass portal area (Fig.
  • Figure 7 shows LG Type 2 Sections: at Front Leg and Front Nose (Fig. 7-A) and Middle
  • the new overhead self-launching launching gantry systems according to this invention comprises of
  • Main Girder (100) is made up of several plates to become box section and being the principle bearing components which transfer the segment loads to the supports.
  • the segment loads are transferred from the stressing bars (140) to the Suspension Beams (130) which run on top of the main girder (100) for LG Type 1 or transferred from bottom slabs of the Hangers (200) which are bolted to top of main girder (100) for — LG Type 2.
  • a hinge 120 connected between main girder (100) and' the front hose (1 10) to 'facilitate the operation of LG while going' to the curve bridge.
  • Front Nose (1 10) is connected to front end 'of the main girder ( 100) arid is designed' to transfer loads to the support during launching.
  • the shape of me ' front nose (HO) is the upright triangle for LG Type 1 and the rectangular shape for LG Type 2 ' .
  • Suspension beam (130) is specially ⁇ equipped ' on top of main girde (100) for 'LG Type 1.
  • the 'Crane (700) picks up ' segment and ' moves along' bottom rail of main girder (100) to bring the segment into correct position.
  • Pfestressing' bars (140) a're connected ' to 'segrhent at the bottom and suspension ' beam (130) at the top ' ; then, segment can 1 ' be released from the crane (700).
  • the suspension beam ( 130) is transferring' segment loads into the main girder (100) after the ' segments have been released ' from the ' crane (700). Segment can be adjusted transversely by hydraulic cylinder connected between suspension beam (130) and main "girder (100); and vertically' adjuster! by adjusting the length of prestressing bars ( 140)'.
  • Front Support (410) which provides support to the LG during segments installation.
  • Crane (700) provides segment delivery into the correct position.
  • the crane (700) can lift up the segments either from the rear or front of the being installed bridge span. After picking up the segment, the crane (700) can move along bottom rail of main girder (100) to bring the segment into the correct position. Segments are hung by the prestressing bars (140) to the suspension beam (130) for LG Type 1 or sit on the trolley (800) for LG Type 2.
  • Trolley (800) ' is specially designed and equipped on bottom slab of the hanger (200) for LG Type 2.
  • the trolley (800) will move back and forth to bring the segments into the correct ' position. After segment is in the correct position, ' it will be released from the trolley (800) and supported by the adjustable jack supports.
  • the assembling and erecting sequence of the said SL-LG can be described as the following;
  • the launching sequence of the said SL-LG comprises of the segment installation and launching stages as the following;
  • Middle launching support (430) is suspended to the front nose ( 1 10).
  • Front leg (420) is ready set on top of the next pier.
  • Rear support (400) is now on the steel wheels.
  • LG is supported by middle launching support (430) and rear support (400).
  • the dismantling process of the said SL-LG can be described as the following; Process of this operation is depended on the actual condition at site and varied from job to job. A careful planning and drawings should be done before actual dismantling begins.
  • LG is supported by temporary tower at the rear and the middle launching support (430) at the front.

Landscapes

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

Abstract

L'invention concerne un portique de lancement auto-lanceur suspendu qui comprend - une poutre principale (100) qui est constituée de plus d'une plaque afin de fonctionner en tant qu'élément de support principal pour transférer les charges de segment sur les supports, - un nez avant (110) qui est relié à l'extrémité avant de la poutre principale (100) et est conçu pour transférer des charges au support pendant le lancement. Ledit nez avant (110) comprend en outre une charnière (120) entre ladite poutre principale (100) et ledit nez avant (110), - un support arrière (400) qui fournit un appui au portique de lancement lors de l'installation de segments et du lancement. Ledit support arrière (400) est réglable pour une étendue différente, - un support avant (410) qui fournit un appui audit portique de lancement pendant l'installation de segment, le repositionnement et l'installation de support de lancement central et de patte avant, - une patte avant (420) qui fournit un appui au portique de lancement pendant une opération de lancement, - un support de lancement central (430) qui fournit un appui audit portique de lancement pendant une opération de lancement, - une grue (700) qui permet une mise en place de segment dans la bonne position.
PCT/TH2013/000044 2013-09-06 2013-09-06 Nouveaux systèmes de portique de lancement auto-lanceur suspendu WO2015034444A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TH2013/000044 WO2015034444A1 (fr) 2013-09-06 2013-09-06 Nouveaux systèmes de portique de lancement auto-lanceur suspendu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TH2013/000044 WO2015034444A1 (fr) 2013-09-06 2013-09-06 Nouveaux systèmes de portique de lancement auto-lanceur suspendu

Publications (1)

Publication Number Publication Date
WO2015034444A1 true WO2015034444A1 (fr) 2015-03-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TH2013/000044 WO2015034444A1 (fr) 2013-09-06 2013-09-06 Nouveaux systèmes de portique de lancement auto-lanceur suspendu

Country Status (1)

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WO (1) WO2015034444A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017213532A1 (fr) * 2016-06-08 2017-12-14 Pgpi - Marcas E Patentes, S.A. Cintre ou lanceur supérieur en coffrage à section inférieure évidée
CN108867404A (zh) * 2018-09-17 2018-11-23 袁攀峰 基于前支腿的下导梁式定点起吊架桥机过隧道的方法
CN110093864A (zh) * 2019-06-17 2019-08-06 秦皇岛天业通联重工科技有限公司 一种操作简单的架桥机
CN110093865A (zh) * 2019-06-04 2019-08-06 秦皇岛天业通联重工科技有限公司 一种架桥机
CN110273375A (zh) * 2018-03-17 2019-09-24 中国铁路总公司 一种架桥机
CN110607755A (zh) * 2019-10-15 2019-12-24 合肥正浩机械科技有限公司 一种架桥机架设最后一跨时支腿调节机构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1534453A1 (de) * 1966-03-11 1970-02-12 Kunz Alfred & Co Vorrichtung und Verfahren zur abschnittsweisen Herstellung von auf Abstuetzungen angeordneten Stahlbetontragwerken
WO2013052017A1 (fr) * 2011-10-07 2013-04-11 Nrs Consulting Co., Ltd. Système d'échafaudage mobile du type auto-lanceur

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1534453A1 (de) * 1966-03-11 1970-02-12 Kunz Alfred & Co Vorrichtung und Verfahren zur abschnittsweisen Herstellung von auf Abstuetzungen angeordneten Stahlbetontragwerken
WO2013052017A1 (fr) * 2011-10-07 2013-04-11 Nrs Consulting Co., Ltd. Système d'échafaudage mobile du type auto-lanceur

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017213532A1 (fr) * 2016-06-08 2017-12-14 Pgpi - Marcas E Patentes, S.A. Cintre ou lanceur supérieur en coffrage à section inférieure évidée
CN110273375A (zh) * 2018-03-17 2019-09-24 中国铁路总公司 一种架桥机
CN110273375B (zh) * 2018-03-17 2021-03-12 中国铁路总公司 一种架桥机
CN108867404A (zh) * 2018-09-17 2018-11-23 袁攀峰 基于前支腿的下导梁式定点起吊架桥机过隧道的方法
CN110093865A (zh) * 2019-06-04 2019-08-06 秦皇岛天业通联重工科技有限公司 一种架桥机
CN110093864A (zh) * 2019-06-17 2019-08-06 秦皇岛天业通联重工科技有限公司 一种操作简单的架桥机
CN110607755A (zh) * 2019-10-15 2019-12-24 合肥正浩机械科技有限公司 一种架桥机架设最后一跨时支腿调节机构
CN110607755B (zh) * 2019-10-15 2021-04-06 合肥正浩机械科技有限公司 一种架桥机架设最后一跨时支腿调节机构

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