EP0463619B1 - Procédé de l'assainissement de ponts - Google Patents

Procédé de l'assainissement de ponts Download PDF

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Publication number
EP0463619B1
EP0463619B1 EP19910110613 EP91110613A EP0463619B1 EP 0463619 B1 EP0463619 B1 EP 0463619B1 EP 19910110613 EP19910110613 EP 19910110613 EP 91110613 A EP91110613 A EP 91110613A EP 0463619 B1 EP0463619 B1 EP 0463619B1
Authority
EP
European Patent Office
Prior art keywords
mushroom
support
platforms
carriageway
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
Application number
EP19910110613
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German (de)
English (en)
Other versions
EP0463619A1 (fr
Inventor
Herbert Dipl. Ing. Dr. Geisler
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Individual
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Individual
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Publication of EP0463619A1 publication Critical patent/EP0463619A1/fr
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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
    • E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges

Definitions

  • the invention relates to a method for the rehabilitation of bridges, in particular highway bridges, from mushroom elements lined up in a row, each having a shaft and a mushroom plate which projects on all sides, a first transverse edge of each mushroom plate having a support bracket for the stepped, second transverse edge of the subsequent mushroom plate, and between each A joint construction is provided for two mushroom plates.
  • a bridge is known for example from DE-A-1 258 441.
  • the invention has therefore set itself the task of creating a method that maintains the load-bearing capacity of the support brackets of the mushroom joints permanently with an economically justifiable effort, or increases an already reduced load-bearing capacity of the mushroom structure accordingly afterwards. If necessary, it should also be possible to widen the bridge.
  • the additional concrete construction changes the mushroom bridge in a way that aligns its service life with that of other bridge structures by eliminating the contradictory dual function of the mushroom joints, namely that of a wearing part with stability requirements.
  • a first embodiment of the invention provides that at least one carriageway support plate made of reinforced or prestressed concrete spanning several mushroom plates is applied to the mushroom slabs as a supplementary concrete construction.
  • Such a procedure is chosen in particular when the damage to the support bracket and the support elements is still slight and there is sufficient carrying reserve.
  • the access of the road sewage into the mushroom joints and the further corrosion of the support bracket and the support elements is excluded.
  • the existing roadway structure is preferably removed, a separating layer is placed over the exposed mushroom plates, and the new roadway support plate is produced thereon.
  • the separating layer provides a seal to the mushroom elements on the one hand and the necessary expansion path of the new carriageway support plate on the other hand if a lower layer made of fleece, a middle plastic film and an upper layer made of fleece are applied as the separating layer.
  • plastic fleeces are used for this.
  • the new carriageway support plate can be connected to a mushroom plate so that an expansion fixed point is formed.
  • the tension reinforcement of the mushroom slab has so-called windows, so that the roadway slab can be integrated relatively easily.
  • the mushroom element closest to the elastic center of gravity of the respective section is preferably selected the elastic center of gravity of the bridge system or, in the case of further roadway support plates.
  • a single carriageway support slab can be built up to a bridge length of approximately 150 m. With larger bridge lengths, each transverse joint is formed between the carriageway support plates, in particular above the shaft of a mushroom element. In a further preferred embodiment it is provided that the carriageway support plate on the two bridge abutments extends beyond the bridge abutment, so that no intervention in the existing bridge abutment is necessary.
  • the production of the new carriageway support plate from reinforced concrete or prestressed concrete in the thickness determined according to structural and structural requirements also enables a possible widening of the bridge in a simple manner by protruding the or each carriageway support plate over the longitudinal edge of the mushroom slabs.
  • a second embodiment of the invention provides that, as a supplementary concrete structure, a beam is made underneath each support bracket on which the two mushroom plates be supported.
  • the support of the girder on the shafts of the mushroom elements can be carried out, for example, via oblique struts or longitudinal beams which are anchored to the shafts.
  • a support collar for the beam supports is preferably produced on the shaft, the shafts of the mushroom elements being able to be reinforced, if necessary, by additional external or internal pillars if the carrying reserves of the shafts are too small.
  • FIG. 1 shows the side view of a highway bridge made of mushroom elements
  • Fig. 2 is a plan view of the bridge
  • Fig. 3 shows a cross section along the line III-III in Fig. 1
  • Fig. 4 shows a cross section along the line IV IV in FIG. 1
  • FIG. 5 a previous mushroom joint
  • FIG. 6 a section corresponding to FIG. 4 through a freeway bridge renovated by means of the first embodiment of the method
  • FIG. 7 corresponding to FIG. 5 the mushroom joint of the renovated freeway bridge from FIG 6 and
  • FIGS. 8 to 13 show different variants of the second embodiment of the renovation method
  • FIGS. 8, 10 and 12 each showing schematic longitudinal sections of a bridge section
  • FIGS. 9, 11 and 13 each showing top views of the additional concrete construction .
  • a highway bridge according to FIGS. 1 and 2 is composed of mushroom elements 1, the central area comprising so-called semi-mushrooms, which comprise only one directional lane.
  • Each mushroom element consists of an anchored in the ground, in particular a hollow shaft 3 and a mushroom plate 4.
  • the mushroom plates 4 Transverse to the longitudinal direction of the bridge, the mushroom plates 4 generally protrude by the same amount on both sides of the shaft axes 10. In contrast, in the longitudinal direction of the bridge, the mushroom plates 4 protrude unevenly over the shaft axes 10.
  • the first edge of the mushroom plates 4, which runs transversely to the roadway, is designed as a support bracket 12 for the second edge 13 of the adjoining mushroom plate 4 and is in particular provided on the shorter cantilever arm, 4 support elements 14 being inserted between the two mushroom plates.
  • the resulting mushroom joints 11 compensate for the lengthening and shortening of the mushroom plates resulting from the atmospheric temperature changes, but also for dynamic movements caused by traffic.
  • the roadway structure 6 thus has a joint construction 15 on each mushroom joint 11, which is intended to seal the mushroom joint 11 and to protect the supports against the roadway sewage.
  • all of the mushroom joints 11 can thereby be permanently protected and removed from the attack by atmospheres which are aggressive against concrete and / or steel by the entire roadway structure 6 except for the raw structure formed by the mushroom plates 4 is removed, the top of which is cleaned by sand and / or water blasting.
  • a lower fleece 22 applied and this covered with a plastic film 23 so that moisture access to the mushroom plates 4 and in particular to the support brackets 12 is excluded.
  • the plastic film 23 then receives an upper fleece cover 24, on which a cover strip 25 is placed in the area of the mushroom joints 11.
  • a new carriageway support plate 20 made of reinforced or prestressed concrete is applied in the thickness required according to structural and structural laws and rules across all mushroom joints 11 across the entire bridge width. If necessary, the new carriageway support plate 20 can be connected to the mushroom plate 4 on a mushroom element 1, so that an expansion fixed point is created.
  • the new carriageway support plate 20 can also be provided on the longitudinal edges with longitudinal edge beams and with a central rib 8 between the two directional carriageways, which accommodate the necessary guiding devices.
  • the new carriageway support plate 20 is cantilevered over the longitudinal edge, whereby at the same time there is the possibility of the carriageway widening.
  • a steel catwalk construction can also be arranged.
  • the road surface 18 is then applied to the new roadway support plate 20 in its respectively required construction and the required composition.
  • the generally customary edge caps 7 are then arranged on the longitudinal edge.
  • the formation of a single new carriageway support plate is particularly favorable up to a length of 150 meters.
  • several roadway support plates 20 are separated by a joint 19 (FIG. 8), each of which lies above the shaft 3 of a mushroom element 1, with each fixed extension point, i.e. the connection between the roadway support plate 20 and the mushroom plate 4, each above the middle between two joints 19 lying shaft 3 is provided.
  • each fixed extension point i.e. the connection between the roadway support plate 20 and the mushroom plate 4
  • each above the middle between two joints 19 lying shaft 3 is provided.
  • each shaft 3 is provided with a sleeve 26 made of reinforced or prestressed concrete, according to FIGS. 8 and 9, on which four support structures 27 are arranged.
  • Two longitudinal members 28 are placed on each support structure 27, which span the bridge fields from shaft 3 to shaft 3 under the mushroom plate 4.
  • one beam 30 is arranged under the mushroom joint 11 per bridge field, and, as shown in dashed lines, a second beam 30.
  • the beams 30 are made of steel or Prestressed concrete.
  • the additional support structures shown in FIGS. 8 to 13 essentially transform the mushroom bridge into a conventional bridge with supporting structures supported on pillars, so that the existing roadway structure 6 and the joint structure 15 can be retained.
  • the support bracket 12 and the support elements 14 are then still exposed to corrosion, but the stability of the bridge is no longer at risk.
  • the application of new carriageway slabs 20 is therefore not necessary or not necessary at the same time, as a result of which the renovation costs can be kept relatively low. Later application of the new roadway slabs 20 is of course possible at any time.
  • the refurbishment method according to the invention also allows traffic to be maintained at least on one side.

Landscapes

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

Claims (15)

  1. Procédé de rénovation de ponts, en particulier de ponts d'autoroute, à partir d'éléments champignons (1) alignés les uns à coté des autres, présentant chacun un fût (3) et une plaque de champignons (4) dépassant de toute part, une première bordure transversale de chaque plaque champignons présentant une console support (12) pour la deuxième bordure transversale (13) étagée de la plaque champignons adjacente, et entre chaque fois deux plaques champignons étant prévue une construction de joints (15), caractérisé en ce que l'ouvrage porteur de pont formé par les plaques champignons est complété par une construction en béton (20) armée, s'étendant au-dessus des plaques champignons (4), sur les joints (11) des champignons.
  2. Procédé selon la revendication 1, caracterisé en ce que l'on applique comme construction en béton complémentaire sur les plaques champignons (4) au moins une plaque support de piste de roulement (20), pontant plusieurs plaques de champignons (4), réalisée en acier ou en béton précontraint.
  3. Procédé selon la revendication 2, caractérisé en ce que la structure (6) de la plaque de la piste de roulement existante est enlevée, une couche de séparation (21) étant posée sur les plaques champignons (4) mises à nue et la ou chaque plaque support (20) de piste de roulement étant construite par dessus.
  4. Procédé selon la revendication 3, caractérisé en ce que l'on applique comme couche de séparation une couche inférieure en un matelas de fibres (22), une feuille synthétique (23) médiane et une couche supérieure en matelas de fibres (24).
  5. Procédé selon l'une des revendications 2 à 4, caractérisé en ce que la, ou chaque plaque support (20) de piste de roulement est reliée à un élément champignon (1) à l'aide de la plaque champignons (4).
  6. Procédé selon la revendication 5, caractérisé en ce que la, ou chaque plaque support (20) de piste de roulement est reliée au tronçon du système de pont de l'élément champignon (1) subséquent, en passant par le barycentre élastique du système de ponts ou est relié au tronçon passant par le barycentre élastique.
  7. Procédé selon l'une des revendications 2 à 6, caractérisé en ce chaque joint transversal (19) est realisé entre deux plaques supports (20) de pistes de roulement, au-dessus du fût (3) d'un élément champignon (1).
  8. Procédé selon l'une des revendications 2 à 7, caractérisé en ce que la plaque support (20) de piste de roulement s'étend par dessus la culée de pont aux deux culées de pont.
  9. Procédé selon l'une des revendications 2 à 8, caractérisé en ce que la, ou chaque plaque support (20) de piste de roulement est en encorbellement au-dessus du bord longitudinal des plaques champignons (4).
  10. Procédé de rénovation de ponts, en particulier de ponts d'autoroute, à partir d'elements champignons (1) alignés les uns à coté des autres, présentant chacun un fût (3) et une plaque de champignons (4) dépassant de toute part, une première bordure transversale de chaque plaque champignons présentant une console support (12) pour la deuxième bordure transversale (13) étagée de la plaque champignons adjacente, et entre chaque fois deux plaques champignons étant prévue une construction de joints (15), caractérisé en ce que l'ouvrage porteur de ponts formé par les plaques champignons est complété par une construction en béton (30) armée s'étendant au-dessous des plaques champignons (4), sur les joints (11) des champignons.
  11. Procédé selon la revendication 10, caractérisé en ce l'on fabrique, à titre de construction en béton complémentaire au dessous de chaque console support (12), une sous-poutre (30), sur laquelle prennent appui les deux plaques champignons (4).
  12. Procédé selon la revendication 11, caractérisé en ce que chaque sous-poutre (30) est soutenue par l'intermédiaire d'arbalétriers (29) par rapport au fût (3) des deux éléments champignons (1).
  13. Procédé selon la revendication 1, caractérisé en ce que chaque sous-poutre (30) est soutenue sur des longerons (28) disposés entre les fûts (3) des deux éléments champignons (1).
  14. Procédé selon la revendication 12 ou 13, caractérisé en ce qu'une manchette support (26) destinée aux appuis (28, 29) des sous-poutres est fabriquée sur le fût (3).
  15. Procédé selon l'une des revendications 1 à 14, caractérisé en ce que les fûts (3) des éléments champignons (1) sont renforcés.
EP19910110613 1990-06-27 1991-06-26 Procédé de l'assainissement de ponts Expired - Lifetime EP0463619B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1365/90 1990-06-27
AT136590A AT396139B (de) 1990-06-27 1990-06-27 Verfahren zur sanierung von bruecken

Publications (2)

Publication Number Publication Date
EP0463619A1 EP0463619A1 (fr) 1992-01-02
EP0463619B1 true EP0463619B1 (fr) 1994-03-23

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EP19910110613 Expired - Lifetime EP0463619B1 (fr) 1990-06-27 1991-06-26 Procédé de l'assainissement de ponts

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EP (1) EP0463619B1 (fr)
AT (1) AT396139B (fr)
DE (1) DE59101222D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU675602B2 (en) * 1994-12-16 1997-02-06 Sho-Bond Corporation Method for strengthening a concrete deck
SG80511A1 (en) * 1994-12-16 2001-05-22 Sho Bond Corp Method for strengthening a concrete deck
ES2426154B1 (es) * 2011-11-04 2014-10-22 Esteyco S.A.P. Conjunto de tablero y pila de viaducto

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH359731A (de) * 1956-10-31 1962-01-31 Dyckerhoff & Widmann Ag Brückenartig ausgebildete Hochstrasse aus Beton
DE1258441B (de) * 1962-06-01 1968-01-11 Dyckerhoff & Widmann Ag Brueckenartig ausgebildete Hochstrasse aus Stahlbeton oder Spannbeton
DE1239346B (de) * 1965-06-18 1967-04-27 Theodor Kueppers Baugesellscha Verfahren zum abschnittsweisen Bau von mehrfeldrigen Spannbetonbruecken
DE1658584B1 (de) * 1967-03-25 1970-09-24 Dyckerhoff & Widmann Ag Brueckenartig ausgebildete Hochstrasse aus Stahlbeton oder Spannbeton
DE1929702C2 (de) * 1969-06-11 1975-01-23 Dyckerhoff & Widmann Ag, 8000 Muenchen Mehrfeldriges Brttckentragwerk aus Stahl- oder Spannbeton mit im BrttckenquerschitKt mtttig angeordneten Stutzen
AT375984B (de) * 1981-08-27 1984-09-25 Kratochvil Guenter Fahrbahnuebergang
EP0149697A1 (fr) * 1984-01-23 1985-07-31 Kober AG Couvre-joint pour joints de dilatation dans des chaussées, en particulier dans des tabliers de pont

Also Published As

Publication number Publication date
AT396139B (de) 1993-06-25
ATA136590A (de) 1992-10-15
DE59101222D1 (de) 1994-04-28
EP0463619A1 (fr) 1992-01-02

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