EP0617171B1 - Procédé et dispositif pour la construction d'un pont suspendu - Google Patents

Procédé et dispositif pour la construction d'un pont suspendu Download PDF

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Publication number
EP0617171B1
EP0617171B1 EP19930302386 EP93302386A EP0617171B1 EP 0617171 B1 EP0617171 B1 EP 0617171B1 EP 19930302386 EP19930302386 EP 19930302386 EP 93302386 A EP93302386 A EP 93302386A EP 0617171 B1 EP0617171 B1 EP 0617171B1
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EP
European Patent Office
Prior art keywords
lifting device
hangers
deck section
device platform
lifted
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 - Lifetime
Application number
EP19930302386
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German (de)
English (en)
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EP0617171A1 (fr
Inventor
Cecil Witherow
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.)
Pg Brown Ltd
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Pg Brown Ltd
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Filing date
Publication date
Application filed by Pg Brown Ltd filed Critical Pg Brown Ltd
Priority to EP19930302386 priority Critical patent/EP0617171B1/fr
Priority to JP6056389A priority patent/JPH0754311A/ja
Publication of EP0617171A1 publication Critical patent/EP0617171A1/fr
Application granted granted Critical
Publication of EP0617171B1 publication Critical patent/EP0617171B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E01D11/00—Suspension or cable-stayed bridges

Definitions

  • the present invention relates to a method for mounting prefabricated deck sections of a suspension bridge wherein deck sections positioned below the suspension cables of the suspension bridge essentially at surface level (ground or sea level) are lifted consecutively to their respective final elevated position in which position hangers depending from the suspension cables are secured to the lifted deck section and the latter is at least provisionally connected to the adjacent deck section previously mounted.
  • FR-A-2580687 discloses such a method in which the deck sections are lifted by cranes travelling on the suspension cables of the suspension bridge. Furthermore it is known to lift the deck sections by means of winches winding on lifting wires deflected at trolleys travelling on the suspension cables; the winches are located on the ground (WO 91/08344, Fig. 1). Furthermore the deck sections may be lifted by means of a floating crane (WO 91/08344, Fig. 2).
  • WO 91/08344 finally discloses a method for lifting a deck section wherein lifting device yokes are secured to the deck sections while corresponding lifting wire yokes are secured to the hangers depending from the suspension cables; each lifting device yoke comprises two lifting devices, and lifting wires are secured to the lifting wire yokes (Fig. 16).
  • the disclosure is silent about the question how to secure the lifting wire yokes to the hangers; apparently they are mounted at the hangers before the latter are secured to the suspension cables.
  • the above mentioned method employing a floating crane is very expensive where very heavy prefabricated deck sections shall be mounted due to the enormous costs for a suited floating crane.
  • the method employing winches located on the ground is costly due to the requirement for very long lifting wires.
  • the method using lifting cranes requires corresponding long wires to secure the cranes in their position.
  • the last mentioned method employing lifting cable yokes at the hangers and lifting device yokes at the deck sections is very costly as well since a proper lifting wire yoke is required for each hanger; a further shortcoming is that the freely dangling lifting wires not in use may damage each other.
  • a shortcoming common to all prior art methods is that they are very time consuming; this is since the deck sections must be lifted very slowly otherwise the lifted deck section could clash with the adjacent one.
  • this object is solved in that a lifting device platform is employed which platform during each lifting step is supported by the hangers to be fixed to the deck section to be lifted momentarily and is advanced between two successive lifting steps from a position above the deck section just mounted to a position above the adjacent deck section to be lifted next.
  • the lifting devices are provided at the lifting device platform.
  • the lifting device platform during each lifting step is immediately secured to hangers relating to the deck section to be lifted. After the hangers have been secured to the deck section after it has been brought into its final elevated position the lifting device platform is detached from the hangers such that it may be advanced to its next position where it is secured to the hangers again.
  • the inventive method is applicable for all known types of suspension bridges independently whether each deck section is supported by two hangers, four hangers, two pairs of hangers, four pairs of hangers or the like.
  • the lifting device platform during each lifting step, is connected to the deck section mounted in the foregoing step.
  • the lifting devices mounted thereon may be very accurately positioned in this instance. This allows by a very simple way an exact positioning of the deck section to be lifted with respect to the adjacent deck section already mounted.
  • lifting of the deck sections may be accelerated since there is no risk that the two adjacent deck sections clash with one another and damage each other while one of them is lifted.
  • relatively short lifting wires may be employed in the inventive method as compared with prior art methods contributes to reduce the tendency of the deck section to be lifted to swing.
  • a lifting device platform to be employed in the inventive method comprises at least one longitudinal beam and at least one transversal beam displacably connected to the longitudinal beam(s) wherein the transversal beam(s) are adapted to extend between two opposing hangers (pairs of hangers) and are provided at each extremity with at least one lifting device as well as fixing means to secure said extremity to the respective hanger(s).
  • the displaceable connection between the at least one longitudinal beam and the transversal beam(s) allows that they may be advanced independently; the at least one longitudinal beam may be advanced while the transversal beams are secured to the hangers or rest on the deck section respectively, and the transversal beams may be advanced to the next hangers travelling along the at least one longitudinal beam while the latter is fixed to the deck section just mounted for example by means of auxiliary beams.
  • the advantages of such construction of the lifting device platform will become more apparent from the description of the drawings annexed hereto.
  • the lifting device platform comprises at least two transversal beams.
  • the fixing means to secure the transversal beams to the respective hangers are provided at end portions of the transversal beams which are moveable with respect to center portions of the transversal beams.
  • the end portions of the transversal beams may be hingedly connected to their respective center portions. This allows that the end portions of the transversal beams may be displaced such that the transversal beams may be advanced between two opposing hangers (pairs of hangers) without interfering with the latter after they have been secured to the lifted deck section.
  • the end portions are telescopically fixed to the center portions of the transversal beams.
  • the fixing means comprise tubes which are composed of two half-shells clamped together so as to enclose the lower ends of the respective hangers and to rest on the hanger heads.
  • Such tubes allow in particular that the hanger heads may be inserted through bores into the inner of the deck section where they may be secured to the deck section.
  • the lifting devices are preferably located intermediate between a pair of tubes adapted to be fixed to the pair of hangers as setforth above.
  • the tubes of each pair of tubes are connected with each other and finally with the transversal beam by means of a stiff connecting member at which the lifting device may be mounted.
  • suspension bridge to be erected comprises single hangers instead of pairs of them preferebly two lifting devices are provided adjacent each hanger in a symmetrical configuration.
  • Fig. 1 shows a suspension bridge to be erected wherein two deck sections are just to be lifted.
  • Fig. 2-6 illustrate subsequent steps of advancement of the lifting device platform between two sucessive lifting steps of the inventive method.
  • Fig. 7 is a cross sectional view of a preferred lifting device platform and the deck section to be lifted.
  • Fig. 8 shows a detail of the lifting device platform according to fig. 7.
  • Fig. 9 is a view similar to fig. 7 but shows the deck section in its entirely lifted position after the hangers have been secured to the deck section and after the transversal beams have been prepared for being advanced.
  • Fig. 10 shows a detail of fig. 9.
  • Fig. 11 and 12 illustrate a preferred embodiment of the fixing means to secure the transversal beams to the hangers.
  • Fig. 13 is a schematic perspective view illustrating a preferred general design of the lifting device platform of the invention.
  • the suspension bridge according to fig. 1 comprises two pylons 1 over which two suspension cables 2 are stretched. Hangers 3 depend from the suspension cables 2. Every mounted deck section 5b, 5c is supported by four hangers 3.
  • a platform 4 is supported by the hangers 3a, 3b belonging to the deck section 5a to be lifted.
  • the platform 4 is secured to the deck section 5b adjacent to the deck section 5a to be lifted.
  • the platform 4 comprises two longitudinal beams 6 and two transversal beams 7a, 7b.
  • the transversal beams 7a, 7b are displaceably connected to the longitudinal beams 6 such that they may be displaced with respect to the longitudinal beams in the longitudinal direction of the latter.
  • lifting devices are provided pulling lifting wires 8 secured to the deck section 5a to be lifted.
  • Fig. 2 shows the deck section 5b mounted previously; the pairs of hangers 3c, 3d are secured to the deck section 5b at their lower extremities after termination of the previous lifting step.
  • the longitudinal beams 6 are advanced by being displaced on the transversal beams 7a, 7b which remain for the present in their position. Together with the longitudinal beams 6 the rear auxiliary ballasted beam 10 is advanced. After that, the transversal beams 7a, 7b are advanced to the free end of the deck section 5b mounted previously and an auxiliary support 9 is installed; then the longitudinal beams 6 (self-launching) again are advanced (fig.
  • the transversal beams 7a, 7b are advanced travelling along the longitudinal beams 6 from which they depend while the latter rest on the auxiliary support 9 and the auxiliary beam 10; to compensate for the weight of the transversal beams 7a, 7b the auxiliary beam 10 is provided with a counterweight 11.
  • the transversal beam 7b reaches the next pair of hangers 3b it is secured to the latter as described in greater detail below; it is also secured by wires 25 to the deck section 5b previously mounted.
  • the auxiliary support 9 is advanced to the end of the deck section 5b previously mounted and is secured in this position; then the longitudinal beams 6 together with the auxiliary beam 10 are advanced until the transversal beam 7a located at their front end reaches the pairs of hangers 3a.
  • the auxiliary beam 10 is secured to the previously mounted deck section and the transversal beam 7a is secured to the pairs of hangers 3a.
  • the lifting wires 8 depending from the lifting devices may be secured to the deck section to be lifted and the lifting devices provided at the extremities of each transversal beam 7a, 7b may lift the deck section 5a by means of the lifting wires 8.
  • the lifting device platform remains connected to the deck section 5b mounted previously by the auxiliary support 9 and the auxiliary beam 10.
  • each transversal beam 7 consists from a center portion 12 and two end portions 13 hingedly connected to the ends of the center portion. The end portions 13 may pivot about horizontal axes 14 for a reason as setforth below.
  • a box girder 22 is provided at each end portion 13 of each transversal beam.
  • a pair of tubes 16 is secured to each other by a clamping member 15 which is welded to the corresponding box girder 22. The tubes 16 surround the respective hangers and rest on the hanger heads 17.
  • a lifting device 18 is provided on each box girder 22; it is located intermediate between the two hangers of a pair of them. The lifting wires 8 secured to the deck section 5a are pulled upwardly by said lifting devices 18.
  • Fig. 8 shows the design of the extremities of the transversal beams in greater detail. It additionally illustrates the roller guide equipment 19 which allows the longitudinal beams 6 and the transversal beams 7 to be displaced with respect to each other in longitudinal direction of the longitudinal beams 6. Furthermore may be seen a roller equipment 20 provided at the bottom of the transversal beams 7 in order to allow to advance them on the surface of the deck section mounted previously (cf. fig. 2-6).
  • Fig. 8 furthermore shows that the tubes 16 are of a smaller diameter than the heads 17 of the hangers 3 such that the tubes 16 do not hinder to insert the lower extremities of the hangers into corresponding bores in the deck section.
  • the heads 17 of the hangers are provided with a screw thread such that the hangers may be secured to the respective deck section by nuts.
  • transversal beams may be advanced between the hangers.
  • transversal beams 7a, 7b are advanced to their next position they are firstly supported by the roller equipment 20 on the surface of the deck section just mounted and then they depend from the longitudinal beams with which they are connected by means of roller guide equipment 19 (cf. fig. 2-6).
  • Fig. 11-12 illustrate the fixing means which are intended to secure the transversal beams 7 to the pair of hangers 3.
  • a pair of tubes 16 consisting of two half-shells (cf. fig. 12) surrounds the lower extremities of the hangers 3 and rests on their heads 17.
  • the half-shells of each tube are secured to each other by means of a plurality of bolts.
  • the clamping member 15 consisting from two similar parts is provided at the upper ends of the tubes 6. Both parts of the clamping member 15 are clamped together by means of bolts 21.
  • the box girder 22 consisting of two similar parts being welded to the parts of the clamping member 15 is secured to the end section 13 of the transversal beam by means of bolts 23 such that when the bolts 21 and 23 are tight, it is possible to achieve a very stiff connection between the tubes 16 and the transversal beam itself.
  • the box girder 22 as well as the clamping member 15 have a central bore to allow the lifting wire to penetrate these members intermediate between the hangers.
  • On its upper surface the box girder 22 is provided with a seat 24 for mounting of the lifting device 18.
  • the lifting device platform 4 adapted to mount deck sections 5 supported by four pairs of hangers 3 comprises two transversal beams 7 and two longitudinal beams 6.
  • the lifting devices are arranged at the ends of the respective transversal beams such that the lifting wires 8 extend intermediate between the hanger heads 17 of each pair of them.

Landscapes

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

Claims (10)

  1. Procédé de montage des sections (5a, 5b, 5c) préfabriquées du tablier d'un pont suspendu dans lequel les sections du tablier positionnées en dessous des câbles de suspension (2) du pont suspendu, essentiellement au niveau de la surface, sont soulevées et placées consécutivement à leur hauteur respective finale, hauteur à laquelle les suspentes (3) dépendant des câbles de suspension (2) sont fixées à la section du tablier tout juste soulevée et cette dernière rattachée du moins provisoirement à la section du tablier adjacente antérieurement montée, comprenant les étapes suivantes :
    - une plate-forme (4) à dispositifs de levage est fixée aux suspentes (3a, 3b) correspondant à la section du tablier (5a) à soulever,
    - la section du tablier (5a) à soulever est levée à l'aide de dispositifs de levage (18) montés sur la plate-forme (4) à dispositifs de levage,
    - les suspentes (3a, 3b) sont fixées à la section du tablier (5a) une fois celle-ci soulevée et placée à sa hauteur finale,
    - la plate-forme (4) à dispositifs de levage est détachée des suspentes (3a, 3b) de la section du tablier tout juste montée,
    - la plate-forme (4) à dispositifs de levage est amenée au-dessus de la section suivante du tablier à soulever qui est adjacente à la section tout juste montée,
    - la plate-forme (4) à dispositifs de levage est fixée aux suspentes correspondant à la section suivante du tablier à soulever.
  2. Procédé selon la revendication 1, caractérisé en ce que la plate-forme (4) à dispositifs de levage est rattachée, à chaque étape du levage, à la section du tablier antérieurement montée qui est adjacente à la section suivante du tablier à soulever.
  3. Plate-forme (4) à dispositifs de levage pouvant être utilisée dans le procédé de la revendication 1, comprenant au moins une poutre (6) longitudinale et au moins une poutre transversale (7a, 7b) rattachée, de manière décalée, à au moins une poutre longitudinale (6), dans laquelle la/les poutre(s) transversale(s) (7a, 7b) est/sont placée(s) de façon à s'étendre entre deux suspentes/paires de suspentes (3) symétriques et sont dotées à chaque extrémité d'au moins un dispositif de levage (18) ainsi que de moyens de fixation (16, 15) permettant de fixer ladite extrémité à la suspente/paire de suspentes respectives (3).
  4. Plate-forme à dispositifs de levage selon la revendication 3, caractérisée en ce que les moyens de fixation sont placés aux extrémités (13) des poutres transversales (7) pouvant être déplacées par rapport aux parties centrales (12) des poutres transversales.
  5. Plate-forme à dispositifs de levage selon la revendication 4, caractérisée en ce que chaque poutre transversale (7) comprend deux extrémités (13) reliées par le biais de charnières à une partie centrale (12).
  6. Plate-forme à dispositifs de levage selon la revendication 3, caractérisée en ce que les moyens de fixation comprennent des tubes (16) composés de deux demi coquilles fixées ensemble de manière à renfermer les extrémités inférieures des suspentes (3) respectives et à être supportées par les têtes (17) des suspentes respectives.
  7. Plate-forme à dispositifs de levage selon la revendication 6, caractérisée en ce que chaque dispositif de levage (18) est placé de telle sorte que le câble de levage (8) correspondant s'étend de manière intermédiaire entre une paire de tubes (16) destinée à être fixée à une paire de suspentes (3).
  8. Plate-forme à dispositifs de levage selon la revendication 3, caractérisée en ce que la/les poutre(s) transversale(s) (7) comporte(nt) un rouleau (20) roulant à la surface de la section du tablier montée (5b).
  9. Plate-forme à dispositifs de levage selon la revendication 3, caractérisée en ce qu'une poutre auxiliaire (10) est fixée à l'extrémité arrière de la poutre longitudinale (6), laquelle poutre auxiliaire étant dotée d'un contrepoids (11).
  10. Plate-forme à dispositifs de levage selon la revendication 3, caractérisée en ce que la/les poutre(s) transversale(s) (7) est/sont raccordée(s) à au moins une poutre longitudinale (6) par le biais d'un guide à rouleaux (19).
EP19930302386 1993-03-26 1993-03-26 Procédé et dispositif pour la construction d'un pont suspendu Expired - Lifetime EP0617171B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19930302386 EP0617171B1 (fr) 1993-03-26 1993-03-26 Procédé et dispositif pour la construction d'un pont suspendu
JP6056389A JPH0754311A (ja) 1993-03-26 1994-03-25 吊橋を建設する方法及び装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19930302386 EP0617171B1 (fr) 1993-03-26 1993-03-26 Procédé et dispositif pour la construction d'un pont suspendu

Publications (2)

Publication Number Publication Date
EP0617171A1 EP0617171A1 (fr) 1994-09-28
EP0617171B1 true EP0617171B1 (fr) 1996-11-20

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EP (1) EP0617171B1 (fr)
JP (1) JPH0754311A (fr)

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CN101424072B (zh) * 2008-11-18 2011-01-19 中铁一局集团有限公司 大跨度非对称段斜拉桥配重控制施工方法
CN108643057A (zh) * 2018-06-20 2018-10-12 大连理工大学 一种悬索桥主梁架设过程中的临时锚索平衡施工法
CN108946499A (zh) * 2018-08-06 2018-12-07 泰顺桥石园林科技有限公司 一种带载快速行走与吊装的缆载吊机
CN110593111A (zh) * 2019-09-25 2019-12-20 中交路桥华南工程有限公司 索塔区梁段安装方法
CN111535185A (zh) * 2020-04-30 2020-08-14 中交二公局第二工程有限公司 一种悬索桥板桁结合梁安装方法

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NO168594C (no) * 1989-11-29 1992-03-11 Torodd Eeg Olsen Fremgangsmaate for bygging av hengebro

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CN101424072B (zh) * 2008-11-18 2011-01-19 中铁一局集团有限公司 大跨度非对称段斜拉桥配重控制施工方法
CN108643057A (zh) * 2018-06-20 2018-10-12 大连理工大学 一种悬索桥主梁架设过程中的临时锚索平衡施工法
CN108946499A (zh) * 2018-08-06 2018-12-07 泰顺桥石园林科技有限公司 一种带载快速行走与吊装的缆载吊机
CN110593111A (zh) * 2019-09-25 2019-12-20 中交路桥华南工程有限公司 索塔区梁段安装方法
CN111535185A (zh) * 2020-04-30 2020-08-14 中交二公局第二工程有限公司 一种悬索桥板桁结合梁安装方法

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Publication number Publication date
EP0617171A1 (fr) 1994-09-28
JPH0754311A (ja) 1995-02-28

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