EP1008691B1 - Pont en béton à précontrainte extérieure - Google Patents

Pont en béton à précontrainte extérieure Download PDF

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Publication number
EP1008691B1
EP1008691B1 EP99124496A EP99124496A EP1008691B1 EP 1008691 B1 EP1008691 B1 EP 1008691B1 EP 99124496 A EP99124496 A EP 99124496A EP 99124496 A EP99124496 A EP 99124496A EP 1008691 B1 EP1008691 B1 EP 1008691B1
Authority
EP
European Patent Office
Prior art keywords
fixing
bracing
bridge
bracing elements
piers
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
EP99124496A
Other languages
German (de)
English (en)
Other versions
EP1008691A3 (fr
EP1008691A2 (fr
Inventor
Erhard Dipl.-Ing. Kargel
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.)
Walter-Bau AG
Walter Bau AG
Original Assignee
Walter-Bau AG
Walter Bau AG
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 Walter-Bau AG, Walter Bau AG filed Critical Walter-Bau AG
Publication of EP1008691A2 publication Critical patent/EP1008691A2/fr
Publication of EP1008691A3 publication Critical patent/EP1008691A3/fr
Application granted granted Critical
Publication of EP1008691B1 publication Critical patent/EP1008691B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • 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 a concrete bridge with the features of the preamble of Claim 1.
  • the object of the invention is therefore to a concrete bridge with external prestress create, which also has a required high number of guy lines the least possible effort can be realized. This applies to both Manufacture of the fastenings and guides required for clamping as also for the actual installation of the guy lines.
  • guy lines according to the invention By guiding the guy lines according to the invention within the free space of the support body will be guyed used to protect against corrosion to increase durability and this guy can also be checked continuously and if necessary to be repaired or replaced.
  • the guy lines it becomes possible to use the guy lines to be installed in areas where their load-bearing capacity is optimal for achieving the load capacity of the bridge can be used.
  • bracing in a fixation and / or Guide area are arranged essentially next to each other and that Provide the longer stays in each case at a greater distance from the side wall of the supporting body of the bridge as the adjacent one shorter guying is achieved that a high number of guying in Essentially the same level or with essentially the same course can be performed, the optimal for structural reasons or a represents at least advantageous course. If necessary, several can be used Layers of guy lines arranged in this way are provided, which are arranged one above the other at least in the fixing and / or holding area.
  • the distance between the stays in the fixing and / or Guide area and the longitudinal spacing of the pilaster strips for fastening the ends of the Guyings selected so that the guyings are as straight as possible, i.e. without Redirection run.
  • two adjacent stays longer stays preferably only one redirected only once, namely in the area between the concerned Fastening list and the fastening list for the adjacent shorter one Guying.
  • separate deflection means can either be provided or the pilaster strip, to which the adjacent shorter guying is attached at the same time to redirect the adjacent longer guying.
  • Latter Possibility offers the advantage of an extremely low outlay, since guide means for guiding the guying to be redirected directly into the pilaster can be and no separate component is required.
  • the fixation and / or is located Guide area preferably in a bridge section above a support, wherein on both sides of this central section each have opposite sections are provided.
  • the guy lines are then preferably with their two Ends attached to pilaster strips in the opposite sections, the Fixing and / or guiding area in this case only for guiding or redirecting serves.
  • the pilaster strips must have a specific one Minimum distance between their lead-through openings for the associated guy lines from the ceiling.
  • the top guy lines are according to the invention receiving pilasters block-shaped and can be on their in the Box girder facing inside above the receptacle for the assigned Bracing near the ceiling is the bracing of the next bridge section have outwardly and preferably also downwardly deflecting guide. This also applies to the guy lines and the associated pilaster strips on Bottom of the box girder.
  • the block-shaped pilaster strips are formed as prefabricated prefabricated parts, with anchors equal to these finished parts or anchor connections for connection to the supporting body of the bridge can be.
  • the main advantage of prefabricated prefabricated parts is that that these have their full strength already when they are attached and because of the factory production are immediately available.
  • the pilaster strips can be bridged at those that reject the respective support Ends of the bridge sections or within the length of each Bridge section, e.g. B. in the middle.
  • the finished part pilots can also be used with other concrete bridges if e.g. B.
  • a bridge is produced in the cycle shift process, wherein, preferably in Abutment area, a relatively large section of bridges by factory manufactured, pushed out with the help of presses and after manufacture of the next one larger section is pushed with this.
  • the pilaster strips External tensioning cable attached in sections is used to hold the device.
  • Pilasters can be used to hold guy lines.
  • the concrete bridge in question has over the existing one Support a central section 1 erected in the first construction phase, on which successively opposite other bridge sections 2, 2a, 3, 3a, 4 etc. in the open Stem can be attached using appropriate formwork.
  • the Middle section 1 above a support is shown in cross section in FIG. 7.
  • Fig. 6 shows a bridge section 5 also built in the free porch in the middle of the field between two supports.
  • Each section 1-5 forms a box girder, the Ceiling consists of the slab 6.
  • the bottom of the box girder was 7 and the side walls designated 8.
  • each bridge section Mounted pilasters 11, the inside 12 a guide and in the area of a Paragraph 12a of FIG. 4, an additional deflection for each to the next Form section guided guying.
  • the pilaster strips for lower guying were designated 13 in FIG. 6.
  • the two are initially the same Bridge sections 2, 2a erected in an appropriate formwork, the Embodiment at the ends of the bridge sections 2, 2a, the pilaster strips 11 attached and connected via spanned guy lines 14. at The pilaster strips can also be varied within the length of the bridge sections be provided.
  • the Sections 3, 3a lined up and with each other through the fixing and / or Guide area 9 guided guy lines 15 connected to the pilaster strips 11 of sections 2, 2a are diverted to their pilaster strips.
  • the top Guyings 16 of sections 4, 4a are on the pilaster strips 11 of sections 3, 3a redirected and so on, so that finally in the area of the support from FIG.
  • FIG. 5 and 7 show that for the same section there are also two superimposed Guyings, e.g. B. 15 can be performed, which then in one another arranged brackets of the pilaster strips 11 on the corresponding section recording Find. Also several guyings arranged one above the other for the same Section are possible with both lens types.
  • lower bracing 18, 19, 20 are attached, which here from the Starting from the middle of the field, connect the opposite bridge sections, the Guyings 18, analogous to guyings 14 in FIG. 3, guyings 19 seen from the center of the field analogous to the guy lines 15 above the support and finally, the guy lines 20 are ranked analogously to the guy lines 16, 17 are so that the guy image in the section of FIG 3 is similar. Can between the support and the center of the field also some sections of both upper stays 17 and lower Guy 19 or 20 can be reached.
  • the pilaster strips 11, 13 are preferably prefabricated in the factory and can therefore, since they have their full strength, those that occur immediately after installation Anchoring forces are transmitted.

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

Claims (12)

  1. Pont en béton
    a) comportant un corps porteur (6, 7, 8) qui est réalisé sous forme de poutre en caisson et qui est précontraint avec des haubanages (14 - 20) dégagés prévus à l'intérieur de la poutre en caisson,
    b) au moins une extrémité respective des haubanages (14 - 20) étant fixée à des pilastres en lisière reliés de manière solidaire au corps porteur (6, 7, 8) à l'intérieur de celui-ci,
    caractérisé en ce que
    c) dans une ou plusieurs zones du pont, plusieurs haubanages (14 - 17) sont agencés sensiblement les uns à côté des autres dans une zone de fixation et/ou de guidage (9) à l'intérieur de la zone concernée du pont,
    d) lesdits plusieurs haubanages (14 - 17) présentant, avec distance croissante depuis l'une des parois latérales (8) extérieures du corps porteur, entre la zone de fixation et/ou de guidage (9) et l'extrémité concernée des haubanages, une plus grande longueur que le haubanage respectivement voisin en direction de la paroi latérale (8) concernée,
    e) et en ce que pour fixer les extrémités des haubanages (14 - 17), les pilastres de lisière (11) sont reliés à la paroi latérale concernée (8) ou sont au moins agencés à proximité de la paroi latérale concernée.
  2. Pont selon la revendication 1, caractérisé en ce que pour au moins une partie des haubanages (14 - 17), la distance entre deux haubanages (14 - 17) voisins dans la zone de fixation et/ou de guidage transversalement au corps porteur (6, 7, 8) et la distance des pilastres de lisière (11) pour fixer les extrémités concernées de ces haubanages, sont choisies telles qu'au moins le haubanage présentant la plus grande longueur s'étend rectiligne entre le pilastre de lisière concernée et la zone de fixation et/ou de guidage.
  3. Pont selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que pour au moins une partie des haubanages (14 - 17), la distance entre deux haubanages (14 - 17) voisins dans la zone de fixation et/ou de guidage transversalement au corps porteur (6, 7, 8) et la distance des pilastres de lisière (11) pour fixer les extrémités concernées de ces haubanages, sont choisies telles qu'au moins le haubanage présentant la plus grande longueur s'étend rectiligne entre les pilastres de lisière (11) pour fixer le haubanage voisin plus court et la zone de fixation et/ou de guidage, et est dévié dans la zone sensiblement entre les pilastres de lisière (11) pour fixer le haubanage plus long et le haubanage plus court en direction de la paroi latérale concernée.
  4. Pont selon la revendication 3, caractérisé en ce que les pilastres de lisière (11) pour fixer le haubanage (14 - 17) plus court servent simultanément à dévier le haubanage voisin plus long.
  5. Pont selon l'une des revendications précédentes, caractérisé en ce que les pilastres de lisière (11) sont réalisés sous forme de blocs et présentent sur leur face intérieure tournée à l'intérieur de la poutre en caisson (6, 7, 8), au-dessus du logement pour le haubanage (14 - 17) associé et à proximité du plafond, un guidage déviant le haubanage voisin plus long vers l'extérieur et de préférence aussi vers le bas.
  6. Pont selon l'une des revendications précédentes, caractérisé en ce que le corps porteur est constitué par plusieurs tronçons.
  7. Pont selon la revendication 6, caractérisé en ce que les tronçons sont fabriqués en saillie libre.
  8. Pont selon l'une ou l'autre des revendications 6 et 7, caractérisé en ce que via un pilier sont prévus un tronçon médian (1) et des deux côtés, d'autres tronçons respectifs (2, 2a ; 3, 3a, etc.) symétriques.
  9. Pont selon la revendication 8, caractérisé en ce que la zone de fixation et/ou de guidage (9) est prévue dans le tronçon médian à proximité du plafond (6) de la poutre de caisson.
  10. Pont selon l'une des revendications précédentes, caractérisé en ce que dans la zone de fixation et/ou de guidage (9), les haubanages (14 - 17) sont seulement guidés et déviés, et les extrémités sont fixées des deux côtés de la région de fixation et/ou de guidage dans des pilastres de lisière (11) ou en ce qu'une extrémité respective des haubanages est fixée dans la région de fixation et/ou de guidage ou dans un tronçon réalisé antérieurement du pont, également avec tracé quelconque des haubanages.
  11. Pont en béton selon l'une des revendications 6 à 10, caractérisé en ce que des haubanages inférieurs (18 - 20) s'étendant au-delà le milieu de la travée entre deux piliers sont guidés à proximité et au-dessus de la dalle de fond (7) de la poutre en caisson (6, 7, 8) au moins en majeure partie les uns à côté des autres vers les pilastres de lisière (13) qui les reçoivent.
  12. Pont selon l'une des revendications précédentes, caractérisé en ce que les pilastres de lisière (11, 13) en forme de blocs sont réalisés sous forme d'éléments préfabriqués.
EP99124496A 1998-12-08 1999-12-08 Pont en béton à précontrainte extérieure Expired - Lifetime EP1008691B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19856434 1998-12-08
DE19856434A DE19856434C1 (de) 1998-12-08 1998-12-08 Betonbrücke mit externer Vorspannung

Publications (3)

Publication Number Publication Date
EP1008691A2 EP1008691A2 (fr) 2000-06-14
EP1008691A3 EP1008691A3 (fr) 2001-05-02
EP1008691B1 true EP1008691B1 (fr) 2003-07-30

Family

ID=7890275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124496A Expired - Lifetime EP1008691B1 (fr) 1998-12-08 1999-12-08 Pont en béton à précontrainte extérieure

Country Status (4)

Country Link
EP (1) EP1008691B1 (fr)
AT (2) AT3517U1 (fr)
CH (1) CH690277A5 (fr)
DE (2) DE19856434C1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114150565A (zh) * 2021-12-20 2022-03-08 中铁二院工程集团有限责任公司 一种体外预应力混凝土箱梁转向构造简化设计方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4213986C1 (en) * 1992-04-29 1993-05-06 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen, De Sectional construction of bridge deck - uses straight prestressing elements, some external and some buried in concrete

Also Published As

Publication number Publication date
AT3517U1 (de) 2000-04-25
EP1008691A3 (fr) 2001-05-02
EP1008691A2 (fr) 2000-06-14
CH690277A5 (de) 2000-06-30
DE19856434C1 (de) 2000-03-23
DE59906430D1 (de) 2003-09-04
ATE246288T1 (de) 2003-08-15

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