EP0053081B1 - Verfahren und Vorrichtung zum Vorbau eines Bauwerkabschnitts, insbesondere eines Brückenüberbauabschnitts, mit vorgefertigten Segmenten, unter Verwendung eines schrägseilverspannten Trägers - Google Patents

Verfahren und Vorrichtung zum Vorbau eines Bauwerkabschnitts, insbesondere eines Brückenüberbauabschnitts, mit vorgefertigten Segmenten, unter Verwendung eines schrägseilverspannten Trägers Download PDF

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Publication number
EP0053081B1
EP0053081B1 EP81401863A EP81401863A EP0053081B1 EP 0053081 B1 EP0053081 B1 EP 0053081B1 EP 81401863 A EP81401863 A EP 81401863A EP 81401863 A EP81401863 A EP 81401863A EP 0053081 B1 EP0053081 B1 EP 0053081B1
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EP
European Patent Office
Prior art keywords
support
segments
bay
jacks
during
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.)
Expired
Application number
EP81401863A
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English (en)
French (fr)
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EP0053081A2 (de
EP0053081A3 (en
Inventor
Pierre Richard
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.)
Bouygues SA
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Bouygues SA
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Publication date
Application filed by Bouygues SA filed Critical Bouygues SA
Priority to AT81401863T priority Critical patent/ATE11163T1/de
Publication of EP0053081A2 publication Critical patent/EP0053081A2/de
Publication of EP0053081A3 publication Critical patent/EP0053081A3/fr
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Publication of EP0053081B1 publication Critical patent/EP0053081B1/de
Expired 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
    • E01D21/10—Cantilevered erection
    • 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
    • E01D2101/28—Concrete reinforced prestressed

Definitions

  • the invention relates to the installation of segments using a guyed beam, in particular for building a bridge.
  • the word "voussoir” should be considered here as designating a section of a structure, for example of the bridge deck, intended to be assembled with other similar sections to constitute the structure gradually.
  • An object of the present invention is to improve a process of this type so that it is possible to gradually pass the load of several segments from the beam to the deck at the same time as the implementation of the corresponding prestress.
  • this is achieved by a method which comprises a first phase during which the cantilever segments are suspended from the front span and the rear span of the mounting beam is kept substantially stationary and a second phase during which the segments are secured to said portion of the bridge deck by carrying out prestressing in the segments and said portion, and the weight of the segments is gradually transferred to said portion of the bridge deck substantially simultaneously with the implementation of the prestressing, gradually authorizing a tilting of said rear span of the mounting beam around the front support during said second phase.
  • the beam between its state before loading with the segments and the final state after complete transfer of the load to the deck has only undergone an overall tilting around the front support.
  • a guyed beam 5 so that this beam rests on two supports, namely a front support 6 and a rear support 7.
  • These two supports are generally supports on the deck but they can alternatively be supports independent of the deck, for example supports on the piers or on natural massifs.
  • the front support 6 is articulated so that the beam can tilt on this support.
  • Means for example carriages, can slide along the beam to move the segments 1 to their final position.
  • the segments are suspended from these means by cables.
  • Figures 2 to 5 are different longitudinal views of an embodiment according to the invention.
  • Figure 2 shows the region of the rear support 7;
  • Figures 3 and 4 respectively show the region of the front articulated support and the region of the front end of the beam;
  • Figure 5 is a view of a region of the beam, intermediate between that of Figure 3 and that of Figure 4, where is suspended a segment 1.
  • the rear support 7 is designed to be able to maintain immobile, during the loading of the beam with the segments, the rear span of the beam and to be able to authorize a tilting of this rear span, as and when the segments 1 are secured by prestressing and constitute a beam itself becoming part of the deck which ensures the individual weight transfer from the segments to the new structure constituted by the deck 2 and its extension.
  • this rear support 7 is done by means of a jack or a set of jacks which act to control a controlled tilting of the rear part of the deck during the weight transfer phase from the segments to the deck .
  • FIG. 2 an embodiment of the rear support is shown for the example, assuming that, in this case, the support comprises a single jack 8.
  • the cylinder of the jack 8 is carried by a support 9, suspended from the rear span 5a of the beam by lines 10, and the rod of the jack 8 is under pressure against a plate 11 connected by cables 12 to a block 13 located at right of stack 3.
  • the segments to be placed are suspended from carriages mounted to slide on the beam and the carriages are moved along the beam until the segments are in the position assigned to them in the extension. of the apron.
  • Figure 5 shows a segment 1 during movement. It is suspended by cables 16 from carriages 17.
  • the segment must be pivoted by 90 ° to be brought into the service position (as shown in Figure 3).
  • a plurality of segments are thus routed to the span 5b of the beam where they are arranged one after the other.
  • the deformation of the beam is caused by the setting in tension of the shrouds therefore by their elongation.
  • the rear support is in traction: it balances the overturning of the beam caused by the cantilever segments.
  • the guy is dimensioned in such a way that under the action of the loading brought by the segments the vertical deformation of the front span of the beam is substantially linear.
  • the vertical deformations of the front span of the beam are very significant vis-à-vis the deformations on the one hand, of the cables connecting the beam to the segments and, on the other hand, of the deck itself under the combined action of its own weight and the prestressing of solidarity.
  • FIG 4 there is shown schematically all of the prestressing cylinders by a jack 18 which pulls a prestressing cable 19 through the segments shown in phantom.
  • a servo-control (automatic or manual) is created between the cylinder (s) of the rear support of the beam and the prestressing cylinder (s).
  • This control is shown schematically in Figure 8 by a line 20 in broken lines.
  • the beam is not necessarily horizontal at the start and Figure 7 relates to an example in which the beam, at the start, is inclined upwards. It has been assumed that its overall rotation makes it take a final position where it is substantially horizontal.
  • the tilting of the cantilevered part is limited by means of a support and this support is removed at a given time from the second phase during which the prestressing is carried out.
  • a support is removed at a given time from the second phase during which the prestressing is carried out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Claims (7)

1. Verfahren zum Anbringen von vorgefertigten Segmenten (1) im Vorbau eines Brückenüberbauabschnittes (2) mittels eines schrägseilverspannten Montageträgers (5), welcher Montageträger aus zwei Armen, mit einem sich zwischen einer hinteren Abstützung (7) und einer vorderen Gelenkabstützung (6) erstreckenden hinteren Arm (5a) und einem vorderen, eine Konsole bildenden Arm (5b) besteht, dadurch gekennzeichnet, daß das Verfahren eine erste Phase, in der die vorgefertigten Segmente (1) freitragend auf den vorderen Arm (5) aufgehängt werden und der hintere Arm (5a) des Montageträgers im wesentlichen unbeweglich gehalten wird, und eine zweite Phase aufweist, in der die vorgefertigten Segmente (1) mit dem Brückenüberbauabschnitt (2) fest verbunden werden, wobei eine Vorspannung in den vorgefertigten Segmenten und dem genannten Abschnitt erzeugt wird, und daß das Gewicht der vorgefertigten Segmente (1) nach und nach und im wesentlichen gleichzeitig mit der Ausübung der Vorspannung auf den genannten Brückenüberbauabschnitt (2) übertragen wird, wobei während dieser zweiten Phase nach und nach ein Schwenken des genannten hinteren Armes (5a) des Montageträgers um die vordere Abstützung (6) zugelassen wird.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man eine oder mehrere Winden (8) zur Steuerung, des Schwenkens des hinteren Armes (5a) des Montageträgers während der zweiten Phase verwendet.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Steuerung dieser Winden (8) der Steuerung von einer oder mehreren zur Erzeugung der Vorspannung eingesetzten Winden (18) angepaßt wird.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der vordere Arm (5b) des Montageträgers während der ersten Phase im wesentlichen eine Drehung um die vordere Gelenkabstützung (6) erfährt.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß der Montageträger zwischen seinem Zustand vor Beladung mit den vorgefertigten Segmenten (1) und seinem Endzustand nach gänzlicher übertragung der Last auf den überbau nur eine Gesamtschwenkung um die vordere Abstützung (6) ausgeführt hat.
6. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß während der Phase des Beladens des vorderen Arms (5b) des Montageträgers und zu seiner Entlastung die Schwenkung dieses vorderen Armes (5b) mittels einer Abstützung (21) beschränkt und diese Abstützung in einem bestimmten Moment der zweiten Phase außer Wirkung gesetzt wird.
7. Vorrichtung zur Durchführung eines Verfahrens nach einem der Ansprüche 1 bis 6, mit einer oder mehreren Winde(n) (8), mittels derer der hintere Arm (5a) des Montageträgers sich hinten abstützt, und einer oder mehreren Winde(n) (18) zur Erzeugung einer Vorspannung in den vorgefertigten Segmenten (1), dadurch gekennzeichnet, daß sie Mittel aufweist, um die Vorspannungswinden (18) den Winden (8) für die hintere Abstützung des hinteren Armes (5a) des Montageträgers anzupassen.
EP81401863A 1980-11-25 1981-11-24 Verfahren und Vorrichtung zum Vorbau eines Bauwerkabschnitts, insbesondere eines Brückenüberbauabschnitts, mit vorgefertigten Segmenten, unter Verwendung eines schrägseilverspannten Trägers Expired EP0053081B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81401863T ATE11163T1 (de) 1980-11-25 1981-11-24 Verfahren und vorrichtung zum vorbau eines bauwerkabschnitts, insbesondere eines brueckenueberbauabschnitts, mit vorgefertigten segmenten, unter verwendung eines schraegseilverspannten traegers.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8024985A FR2494743A1 (fr) 1980-11-25 1980-11-25 Procede et dispositif pour prolonger une portion d'ouvrage, notamment une portion de tablier de pont, avec des voussoirs, en utilisant une poutre haubannee
FR8024985 1980-11-25

Publications (3)

Publication Number Publication Date
EP0053081A2 EP0053081A2 (de) 1982-06-02
EP0053081A3 EP0053081A3 (en) 1983-01-12
EP0053081B1 true EP0053081B1 (de) 1985-01-09

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Family Applications (1)

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EP81401863A Expired EP0053081B1 (de) 1980-11-25 1981-11-24 Verfahren und Vorrichtung zum Vorbau eines Bauwerkabschnitts, insbesondere eines Brückenüberbauabschnitts, mit vorgefertigten Segmenten, unter Verwendung eines schrägseilverspannten Trägers

Country Status (6)

Country Link
US (1) US4433525A (de)
EP (1) EP0053081B1 (de)
AT (1) ATE11163T1 (de)
CA (1) CA1159608A (de)
DE (1) DE3168205D1 (de)
FR (1) FR2494743A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1198962B (it) * 1984-11-15 1988-12-21 Romualdo Macchi Sistema di varo per campate di ponti in specie a trave continua formati da segmenti prefabbricati e da serrare in opera con cavi di precompressione
CN102493332A (zh) * 2011-11-30 2012-06-13 上海市城市建设设计研究总院 立柱斜张式预制拼装立柱承台结构及其拼装定位工艺
CN103215897B (zh) * 2013-03-26 2015-03-25 天津市市政工程研究院 一种斜拉桥合拢施工方法
JP6497662B2 (ja) * 2015-09-11 2019-04-10 清水建設株式会社 水平反力調整装置および方法
CN105672140A (zh) * 2016-03-08 2016-06-15 中铁港航局集团有限公司 强台风区域大跨度斜拉桥钢箱梁长悬臂架设施工防风方法
CN106800245B (zh) * 2017-01-25 2019-01-25 中铁大桥局集团第一工程有限公司 一种桥面板吊装用吊架、吊装装置及吊装方法
CN112030772A (zh) * 2020-09-14 2020-12-04 河南省交通规划设计研究院股份有限公司 连续刚构桥的快速施工方法
CN112342921A (zh) * 2020-10-30 2021-02-09 安徽省路港工程有限责任公司 宽幅矮塔斜拉桥斜拉索的错位施工及调索工法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1029850B (de) * 1957-01-30 1958-05-14 Maschf Augsburg Nuernberg Ag Verfahren zum Anheben vorkragender Traeger beim Freivorbau
FR1533670A (fr) * 1967-01-13 1968-07-19 Bataafsche Aanneming Mij Nv Procédé pour le montage d'un tablier de pont en béton précontraint à partir d'éléments préfabriqués, et tablier de pont monté avec application de ce procédé
FR2166641A5 (de) * 1971-12-31 1973-08-17 Gecti
FR2244872A1 (en) * 1973-09-24 1975-04-18 Gecti Method of constructing road bridges - involves cantilevering shorts sections joined by tensioned bars
DE2528114C3 (de) * 1975-06-24 1979-06-28 Philipp Holzmann Ag, 6000 Frankfurt Vorschubrüstung zum Herstellen des Überbaus von Spannbetonbrücken oder dergleichen Tragwerken aus Fertigteilen
DE2718616A1 (de) * 1977-04-27 1978-11-02 Leonhardt Fritz Bauverfahren fuer die herstellung von schraegkabelbruecken aus stahlbeton oder spannbeton

Also Published As

Publication number Publication date
EP0053081A2 (de) 1982-06-02
ATE11163T1 (de) 1985-01-15
CA1159608A (en) 1984-01-03
EP0053081A3 (en) 1983-01-12
FR2494743A1 (fr) 1982-05-28
DE3168205D1 (en) 1985-02-21
FR2494743B1 (de) 1983-09-02
US4433525A (en) 1984-02-28

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