EP1125027B1 - Procede de construction d'un pont haubane - Google Patents
Procede de construction d'un pont haubane Download PDFInfo
- Publication number
- EP1125027B1 EP1125027B1 EP00958715A EP00958715A EP1125027B1 EP 1125027 B1 EP1125027 B1 EP 1125027B1 EP 00958715 A EP00958715 A EP 00958715A EP 00958715 A EP00958715 A EP 00958715A EP 1125027 B1 EP1125027 B1 EP 1125027B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- deck
- cable
- tower
- bridge
- 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
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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
-
- 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
- E01D21/065—Incremental launching
Definitions
- the invention relates to a method of constructing a guyed bridge of the type comprising an apron, at least one pylon, and inclined shrouds mounted between the pylon and the apron.
- the invention relates more particularly to a construction process of a cable-stayed bridge by pushing its deck.
- Pushing techniques are well known in the art. area of bridge building. Successive sections of the deck are built or assembled in workshops residents, from which the deck is pushed as and when measure of its construction.
- the apron rests, during its progression, on the bridge piers beforehand built.
- a lighter nosepiece attached to the front of the apron prevents it from tipping over at the start of the push, and prevents too much overhang between the batteries. In case a relatively long interval has to be crossed between two piles, the front spout is no longer sufficient against such overhangs.
- the object of the present invention is in particular to facilitate the construction of cable-stayed bridges when the guyed portion must cross a fairly long distance.
- the bridge construction process guy line according to the invention is characterized in that after having erected the pylon in its final position, at least one cable is attached support to this pylon, we connect the support cable to a section of the deck, and said section of the deck is pushed from one end of the bridge, the support cable helping to support the deck section during the thrust.
- the distance between pylon 4 and stack 5 the most close is relatively important and is equal, in this example, about 170 m. This is why a structure guy line is used to support the deck in this zoned.
- the pylon 4 is used for mounting a set of guy lines inclined. These guys each have an upper end anchored in a respective anchoring area on the pylon 4.
- the shrouds directed towards the right bank have their lower end anchored on the deck. Those, 7, led towards the left bank have their lower end anchored at ground, near foundation 2, in order to balance the efforts of bending applied to the pylon 4 by the shrouds fixed to the apron 6.
- the deck 6 has two sections, one 6a extending from the left bank and the other 6b extending from the right bank.
- Each of these two sections is pushed from the shore by means of systems 8.9 mounted respectively on the foundations 2.3.
- These 8,9 systems are of constitution classic. Each of them includes, for example, one or more cylinders installed on the edge of the foundation adjacent to obstacle 1 and exerting tensile forces on cables connected to a thrust member applied to the rear of the section of apron.
- Each section of deck 6a, 6b is constructed by successive sections in a respective assembly workshop installed on the foundation 2.3. It can be made directly in this workshop, especially in the case of a concrete deck, or simply assembled from elements prefabricated. As it is built, it is pushed horizontally by the 8.9 system to release the mounting area.
- the deck section 6a is shown in its final position in FIG. 2. It extends from the foundation 2 on the left bank, rests on the pylon 4 in which an appropriate passage is provided (for example inverted Y structure), and exceeds pylon 4 towards the right bank over a distance d 1 .
- This distance d 1 can be quite large (for example 40 m), one or more inclined cables 10 are provided to support the cantilever portion of the section 6a from the pylon 4.
- this inclined cable 10 shown in Figures 1 and 2 supports the section of apron 6a during its push. We can in particular proceed as follows.
- the support cable is installed 10 by anchoring its upper end in an anchoring zone M 1 formed in the pylon 4, and by connecting it to a jack 11 articulated at a fixed point relative to the section of deck 6a.
- the jack 11 is controllable in order to adjust the length of the support cable 10 until it is anchored on the pylon 4.
- the jack 8 is controlled so that the length of the support cable 10 between the pylon 4 and the deck section 6a adapts to the current position of the point of articulation of the jack 11.
- the deck section 6a is thus pushed into the position shown in FIG. 2.
- the anchoring zone M 1 comprises, in a manner known per se, a metal tube which is subject to the pylon 4 at the time of the preparation of the latter, this tube being intended to receive, by its end directed towards the right bank, the upper end of the support cable 10.
- the strands of the upper end of the cable 10 are clamped respectively in the jaws of an anchoring head conventionally arranged on the other side of the metal tube.
- the bottom wall of the tube in the anchoring zone M 1 is convex, preferably with a constant radius of curvature in a vertical plane passing through the axis of the tube.
- the deck section 6a is built up to the pylon 4 by other means, for example by cantilevering, or by pushing on temporary piers erected between the foundation 2 and the pylon 4.
- the progression of the section of deck 6a to the pylon 4 can also take place with support cables and a thrust system if the anchoring zone M 1 of the support cable 10 allows sufficient angular movement, or otherwise by providing two support cables 10 successively used (one for the push to the pylon 4 and the other beyond).
- Figure 3 is shown schematically the progression of the section of deck 6a according to a variant of the process according to the invention, between its initial position shown in solid lines and corresponding to that of the Figure 1, and its final position shown in lines mixed and corresponding to that of figure 2.
- This example differs from the previous one in that the jack 11 to which the support cable 10 is connected is no longer articulated at a fixed point relative to the deck, but to a support 12 anchored to the ground near the foundation 2.
- This cylinder 11 is arranged in such a way that the support cable 10 extends between the anchoring zone M 1 and the cylinder 11, bypassing from below a return member 13, for example with a roller, mounted on the section of the deck 6a.
- This member 13 can in particular be placed at the front end of the deck section 6a so as to retain the latter from the front during the thrust.
- the jack 11 is controllable in order to adjust the length of the support cable 10 until it is anchored on the pylon 4.
- the jack 11 When the deck section 6a is pushed from the left bank, the jack 11 is controlled so that the lengths of the support cable 10 between the pylon 4 and the deck section 6a and between the deck section 6a and the point of articulation of the jack 11 are adapted to the current position of the return member 13. The apron section 6a is thus pushed into the position shown in phantom in FIG. 3.
- the deck section 6b As regards the deck section 6b, this is also shown in its final position in FIG. 2. It extends from the foundation 3 on the right bank to the front end of the deck section 6a where the two sections are assembled.
- the deck section 6b has a part which rests on the piles 5, and a part which protrudes by a distance of 1 from the pile 5 closest to the pylon 4.
- this distance of 1 can be fairly large (for example more than 100 m) and that the cantilever portion of the section 6b from the stack 5 above can also be relatively massive
- These cables 14 are connected to static supports 15 from which extend respective horizontal cables 16 anchored in the vicinity of the foundation 3 to retain the cantilever portion of the deck section 6b.
- the deck section 6b is, during its push, not only supported by inclined cables 14, but also retained by cables horizontal 16, as shown diagrammatically on the figure 2.
- the thrust of the stretch of apron 6b can be performed either before or after the thrust of the deck section 6a, or even at the same time time that the latter.
- a portion of the deck section 6b is produced and put in place on the stacks 5, with an overshoot of 0 beyond the stack 5 closest to the pylon 4 ( hence ⁇ 1 ).
- the installation of the portion of the deck section 6b can be carried out conventionally by pushing in the direction of the left bank, the underside of the portion of the deck section 6b sliding on appropriate saddles installed at the tops of the piles 5 (see for example FR-A-2 758 835).
- a temporary cable 18 is then installed between two points 17a, 17b, for example fixed to the deck sections 6a, 6b, which is passed through a pulley 19 mounted at the top of the pylon 4.
- the cable 18 is located in a vertical plane laterally offset from the plane (s) in which the inclined support cables will extend 14.
- the role of this cable 18 is to carry a shuttle 20.
- One end of a support cable 14 is anchored in an area appropriate M 2 formed at the top of the pylon 4, and its opposite end is hooked to the shuttle 20 brought near the pylon.
- the shuttle 20 By moving the shuttle 20 towards point 17b, the cable of the support 14 is allowed to cross the interval separating the two deck sections 6a, 6b. This operation will be repeated for each of the support cables 14 successively installed.
- the temporary cable 18 is optional, other means being able to be used for laying the cables 14.
- the lower end of the cable 14 is fixed to a support 15 shown in Figures 4A and 4B.
- the lower end of the cable 14 is fixed by means of an anchoring block 21 to a plate 22 connected to a yoke 23 by bolts 24 making it possible to adjust the distance between plate 22 and yoke 23.
- Yoke 23 is articulated on the support 15 around an axis X.
- the support 15 includes for example two parallel flanges 25 assembled by bolts 26. Spacers 27 are placed around the bolts 26 between the two flanges 25 to maintain the spacing of these.
- the yoke 23 is placed between the flanges 25, an axial rod not shown ensuring articulation.
- a cylindrical spacer 28 is placed in alignment with the X axis and crossed by the articulation rod. This retractor 28 is provided with holes 29 for fixing the cables horizontal 16.
- each flange 25 supports a bearing 30 which can be in the form of a roller pivoting about a Y axis perpendicular to the flanges.
- the bearings 30 cooperate with a rail 31 fixed to the section apron 6b.
- Rail 31 has the shape of an I-profile arranged parallel to the direction of the deck, the part central of the I being erected vertically and coming place between the two bearings 30. The upper edges of the I-shaped are supported on the top of the bearings 30 to support the deck section 6b while allowing its sliding towards the left bank.
- an angular deflection device 32 can be provided at the front of the foundation 3, the points anchor 33 of the horizontal cables 16 being located laterally to the foundation 3.
- inclined support cables 10, 14 used during the deck push will be cables temporary, replaced by the final shrouds of the structure after the assembly of the two sections of decks 6a, 6b.
- the inclined cables 10, 14 are replaced one by one, or small groups by small groups, so that the cables and stay cables in place continue to support the deck.
- the final shrouds have their upper ends respectively fixed in pylon 4 anchoring zones having preferably served for anchoring the cables of inclined support 10, 14. Their lower ends are fixed to the deck, for example by means of anchor blocks respective placed under the deck, which is crossed by guide tubes receiving the shrouds as is usual.
- the construction process which has just been described above especially has the advantage of good adaptation especially in the event that the breach which separates the two sections of deck to be joined is important or in the event that access to the area separating the two banks is difficult or prohibited.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Measuring Fluid Pressure (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Description
- on relie le câble de soutien au tronçon de tablier par l'intermédiaire d'au moins un support auquel sont fixés d'une part le câble de soutien et d'autre part au moins un câble de retenue ancré vers ladite extrémité du pont, le tronçon de tablier étant agencé pour coulisser par rapport au support au cours de la poussée tandis que le support est sensiblement statique ;
- on fixe au tablier un rail longitudinal ayant au moins un flanc destiné à venir en appui coulissant sur des rouleaux montés sur le support ;
- au fur et à mesure de la poussée du tronçon de tablier, on met en place des supports statiques au niveau d'une extrémité avant du tronçon de tablier, en les reliant au pylône par des câbles de soutien et à un ancrage fixe par des câbles de retenue ;
- le câble de soutien retient le tronçon de tablier en un point fixe par rapport au tronçon de tablier, la longueur de ce câble de soutien, entre ledit point fixe et son point d'attache sur le pylône, étant rendue variable par des moyens de réglage ;
- les moyens de réglage comprennent un vérin articulé à une extrémité avant du tablier qui est orientée à l'opposé de ladite extrémité du pont ;
- les moyens de réglage comprennent un vérin qui est fixé au sol du côté de ladite extrémité du pont de sorte que le câble de soutien contourne par le dessous l'extrémité avant du tronçon de tablier ;
- au cours de la préparation du pylône, des zones d'ancrage sont ménagées dans le pylône pour l'ancrage des haubans, et le câble de soutien est attaché au pylône dans l'une de ces zones.
- la figure 1 est une vue schématique générale d'un pont haubané représenté au cours de l'étape de poussée d'un premier tronçon de son tablier selon une première forme de réalisation du procédé de l'invention, et au cours de l'étape de poussée d'un second tronçon de son tablier selon une deuxième forme de réalisation de l'invention,
- la figure 2 est une vue schématique générale du pont haubané de la figure 1, une fois achevée la mise en place définitive de ses tronçons de tablier,
- la figure 3 est un schéma du premier tronçon de pont poussé selon une variante de réalisation du procédé de la figure 1,
- les figures 4A et 4B sont respectivement une vue de côté du support représenté sur la figure 1 et une vue en coupe verticale de ce support selon la ligne IV-IV.
- deux fondations 2, 3 construites respectivement sur les deux rives opposées de la zone à franchir (ci-après rive gauche pour la fondation 2 et rive droite pour la fondation 3, en référence aux figures 1 et 2),
- un ou plusieurs pylônes 4 érigés dans l'obstacle 1 ; dans l'exemple dessiné, le pont a un agencement général dissymétrique avec un seul pylône 4 dressé plus près de la rive gauche que de la rive droite ;
- des piles 5 construites dans l'obstacle 1 vers la rive droite ;
- un tablier 6.
- dans des cas où la portion en porte-à-faux du tronçon de tablier 6a s'avérerait trop importante, on pourrait utiliser, à la place d'un unique câble de soutien 10, une pluralité de câbles 10, de manière à répartir la force de soutien en divers points du tronçon de tablier 6a au cours de sa poussée horizontale. Chaque câble 10 serait alors attaché, par son extrémité supérieure, dans une zone d'ancrage correspondante aménagée dans le pylône 4, et fixé, par son extrémité inférieure, à un vérin 11 correspondant, articulé en un point fixe par rapport au tronçon de tablier 6a (figures 1 et 2) ou par rapport au sol avec renvoi sur un organe 13 (figure 3),
- dans la version de procédé décrite en référence à la partie droite des figures 1 et 2, le câble de soutien incliné 14 et le câble de retenue horizontal 16 pourraient être constitués par deux portions d'un même câble dévié angulairement au niveau du support 15,
- selon les dimensions et la masse du tronçon de tablier 6a, 6b, une partie au moins des câbles de soutien 10, 14 pourrait être dupliquée et juxtaposée sur la largeur de tablier, facilitant ainsi l'équilibrage de l'ensemble,
- dans certains cas, les câbles inclinés utilisés pour soutenir le tronçon de tablier 6b pourraient être conçus pour constituer les haubans définitifs du pont, ce qui permettrait de ne pas avoir à les démonter une fois l'édification du pont terminée ; dans ce cas, l'ancrage définitif de ces haubans sur la portion de tablier 6b est réalisé à la fin de la poussée, après avoir démonté, un par un, les supports 15.
Claims (8)
- Procédé de construction d'un pont haubané comprenant un tablier (6), au moins un pylône (4), et des haubans inclinés (7) montés entre le pylône (4) et le tablier (6), caractérisé en ce qu'après avoir érigé le pylône (4) dans sa position définitive, on attache au moins un câble de soutien (10;14) à ce pylône, on relie le câble de soutien (10;14) à un tronçon du tablier (6a;6b), et on pousse ledit tronçon de tablier depuis une extrémité (2;3) du pont, le câble de soutien (10;14) contribuant à soutenir le tronçon de tablier (6a;6b) au cours de la poussée.
- Procédé selon la revendication 1, caractérisé en ce qu'on relie le câble de soutien (14) au tronçon de tablier (6b) par l'intermédiaire d'au moins un support (15) auquel sont fixés d'une part le câble de soutien (14) et d'autre part au moins un câble de retenue (16) ancré vers ladite extrémité du pont (3), le tronçon de tablier (6b) étant agencé pour coulisser par rapport au support (15) au cours de la poussée tandis que le support est sensiblement statique.
- Procédé selon la revendication 2, caractérisé en ce qu'on fixe au tronçon de tablier (6b) un rail longitudinal (31) ayant au moins un flanc destiné à venir en appui coulissant sur des rouleaux (30) montés sur le support (15).
- Procédé selon la revendication 2 ou 3, dans lequel au fur et à mesure de la poussée du tronçon de tablier (6b), on met en place des supports statiques (15) au niveau d'une extrémité avant du tronçon de tablier, en les reliant au pylône (4) par des câbles de soutien (14) et à un ancrage fixe (33) par des câbles de retenue (16).
- Procédé selon la revendication 1, caractérisé en ce que le câble de soutien (10;14) retient le tronçon de tablier (6a;6b) en un point fixe par rapport au tronçon de tablier, la longueur de ce câble de soutien, entre ledit point fixe et son point d'attache sur le pylône (4), étant rendue variable par des moyens de réglage.
- Procédé selon la revendication 5, caractérisé en ce que les moyens de réglage comprennent un vérin (11) articulé à une extrémité avant du tablier (6a) qui est orientée à l'opposé de ladite extrémité (2) du pont.
- Procédé selon la revendication 5, caractérisé en ce que les moyens de réglage comprennent un vérin (11) qui est fixé au sol du côté de ladite extrémité (2) du pont de sorte que le câble de soutien (10) contourne par le dessous l'extrémité avant du tronçon de tablier (6a).
- Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'au cours de la préparation du pylône (4), des zones d'ancrage sont ménagées dans le pylône pour l'ancrage des haubans, et en ce que le câble de soutien (10;14) est attaché au pylône (4) dans l'une de ces zones.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9910736 | 1999-08-24 | ||
FR9910736A FR2797893B1 (fr) | 1999-08-24 | 1999-08-24 | Procede de construction d'un pont haubane |
PCT/FR2000/002350 WO2001014645A1 (fr) | 1999-08-24 | 2000-08-21 | Procede de construction d'un pont haubane |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1125027A1 EP1125027A1 (fr) | 2001-08-22 |
EP1125027B1 true EP1125027B1 (fr) | 2004-05-19 |
Family
ID=9549304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00958715A Expired - Lifetime EP1125027B1 (fr) | 1999-08-24 | 2000-08-21 | Procede de construction d'un pont haubane |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP1125027B1 (fr) |
JP (1) | JP4436585B2 (fr) |
KR (1) | KR100732243B1 (fr) |
AT (1) | ATE267299T1 (fr) |
AU (1) | AU7015100A (fr) |
DE (1) | DE60010846D1 (fr) |
ES (1) | ES2220526T3 (fr) |
FR (1) | FR2797893B1 (fr) |
PT (1) | PT1125027E (fr) |
WO (1) | WO2001014645A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101171039B1 (ko) * | 2010-09-02 | 2012-08-06 | 오베아룹코리아(주) | 주경간 긴장수단을 이용한 일부 및 전부 타정식 사장교와 그 시공 방법 |
CN104612032B (zh) * | 2014-12-16 | 2016-06-15 | 中铁第四勘察设计院集团有限公司 | 大跨倾斜拱形桥塔斜拉桥 |
KR101595485B1 (ko) | 2015-04-07 | 2016-02-18 | 주식회사 동해종합기술공사 | 교량 케이블 제설장치 |
CN105926448B (zh) * | 2016-05-03 | 2017-05-31 | 中交第三航务工程局有限公司 | 一种曲线独塔双索面的斜拉桥主塔的施工方法 |
CN106012797A (zh) * | 2016-07-25 | 2016-10-12 | 同济大学 | 一种全地锚式独塔双跨斜拉桥结构及其施工方法 |
CN106284093B (zh) * | 2016-08-31 | 2018-01-12 | 中铁一局集团有限公司 | 一种大跨度缆索吊连续横移式施工方法 |
CN110184890B (zh) * | 2019-06-28 | 2024-03-19 | 同济大学建筑设计研究院(集团)有限公司 | 一种桥跨结构 |
CN112048986A (zh) * | 2020-08-13 | 2020-12-08 | 中铁大桥勘测设计院集团有限公司 | 一种倾斜拱塔斜拉桥 |
CN115897399B (zh) * | 2022-11-21 | 2024-05-31 | 中交建筑集团有限公司 | 一种琵琶形斜拉桥斜向主塔施工方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2938029A1 (de) * | 1979-09-20 | 1981-04-02 | Polensky & Zöllner, 6000 Frankfurt | Verfahren zum herstellen einer schraegseil- oder zuegelgurtbruecke |
FR2693492A1 (fr) | 1992-07-10 | 1994-01-14 | Dumez | Pont haubanné et son procédé de réalisation. |
FR2758835B1 (fr) | 1997-01-28 | 1999-04-02 | Freyssinet Int Stup | Systeme pour faire glisser le tablier d'un pont au sommet d'une pile |
KR100360201B1 (ko) * | 1999-11-12 | 2002-11-08 | 주식회사 제일엔지니어링 | 변형 사장교의 시공방법 |
-
1999
- 1999-08-24 FR FR9910736A patent/FR2797893B1/fr not_active Expired - Fee Related
-
2000
- 2000-08-21 WO PCT/FR2000/002350 patent/WO2001014645A1/fr active IP Right Grant
- 2000-08-21 DE DE60010846T patent/DE60010846D1/de not_active Expired - Lifetime
- 2000-08-21 EP EP00958715A patent/EP1125027B1/fr not_active Expired - Lifetime
- 2000-08-21 JP JP2001518503A patent/JP4436585B2/ja not_active Expired - Fee Related
- 2000-08-21 PT PT00958715T patent/PT1125027E/pt unknown
- 2000-08-21 AT AT00958715T patent/ATE267299T1/de not_active IP Right Cessation
- 2000-08-21 KR KR1020017005001A patent/KR100732243B1/ko not_active IP Right Cessation
- 2000-08-21 ES ES00958715T patent/ES2220526T3/es not_active Expired - Lifetime
- 2000-08-21 AU AU70151/00A patent/AU7015100A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2003507605A (ja) | 2003-02-25 |
ES2220526T3 (es) | 2004-12-16 |
ATE267299T1 (de) | 2004-06-15 |
FR2797893B1 (fr) | 2002-03-22 |
KR100732243B1 (ko) | 2007-06-27 |
AU7015100A (en) | 2001-03-19 |
FR2797893A1 (fr) | 2001-03-02 |
DE60010846D1 (de) | 2004-06-24 |
PT1125027E (pt) | 2004-09-30 |
EP1125027A1 (fr) | 2001-08-22 |
JP4436585B2 (ja) | 2010-03-24 |
WO2001014645A1 (fr) | 2001-03-01 |
KR20010080281A (ko) | 2001-08-22 |
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