EP3696320B1 - Bridge abutment with connection between wall reinforcement and wing wall element - Google Patents

Description

The invention relates to a bridge abutment, a bridge structure with a corresponding abutment and a method for producing a bridge abutment and bridge structure. The invention also relates to a precast concrete part for use in a bridge abutment according to the invention.

Bridge abutments are currently mostly made of reinforced concrete. For this purpose, reinforcements are introduced in the area of the base plate, the wing walls and the bridge abutment and then the bridge abutment is created using in-situ concrete. Extensive formwork work is necessary for this. After the bridge abutment has been poured, the formwork must be dismantled. The construction of such a bridge abutment and a bridge structure with a corresponding bridge abutment is time-consuming. In particular, when a bridge structure is built over an existing traffic route, long construction times lead to long-lasting and costly impairments of the traffic running under the bridge structure to be built.

Bridge abutments can also be created from precast concrete parts or using precast concrete parts. So shows CN 107313339 A a bridge abutment that uses prefabricated elements such as the base, stand, support bank and wing walls as well as connecting segments made in in-situ concrete.

CN 108442239 shows a bridge abutment that is created entirely from precast concrete parts. The precast concrete parts are made of ultra-high-strength concrete (UHPC - Ultra High Performance Concrete) and are connected to the bridge abutment by means of prestressed steel rods.

The object of the present invention is to provide a bridge abutment and a corresponding bridge structure that is reliable and durable and can be produced quickly. A further object of the invention is to create a method for producing a bridge abutment and a method for producing a bridge structure with which it can be erected quickly. This is desirable both for new bridge structures and when replacing existing bridge structures. In particular, the impairment of any traffic routes leading under the bridge structure should be reduced in terms of time.

According to the invention, this object is achieved by a bridge abutment according to claim 1. A precast concrete part correspondingly designed as a wing wall element for a bridge abutment is therefore also the subject of the invention. Furthermore, the object is achieved by a bridge structure which comprises at least one bridge abutment according to the invention, as well as by a method for producing a bridge abutment and a method for producing a bridge structure.

In the bridge abutment according to the invention, at least a part of the wing wall, preferably the entire wing wall, is formed by one or more precast concrete parts. Thus, this part of the wing wall, preferably the entire wing wall, does not have to be cast on site, but can be created from one or more prefabricated components. This shortens the construction time for a corresponding bridge abutment or bridge structure. Furthermore, the precast concrete part in the bridge abutment according to the invention has a connection to further components of the bridge abutment or their reinforcement via its precast concrete reinforcement. These further components of the bridge abutment are the abutment wall and the base plate of the corresponding bridge abutment. This connection creates a reliable and permanent bridge abutment or bridge structure. The connection can be made in that the precast concrete reinforcement of the precast concrete element at least forming the wing wall is connected to a reinforcement of the base plate and / or abutment wall via a connection connection and / or that the corresponding reinforcements of the base plate and / or abutment wall are at least also formed by the precast concrete reinforcement . For this purpose, the precast concrete part according to the invention has corresponding connections for reinforcements on the precast concrete reinforcement and / or unlocked areas of the precast concrete reinforcement that protrude into the area of the abutment wall and / or base plate when the bridge abutment according to the invention is being created. A combination of the connection options is also conceivable.

According to the invention, the abutment wall of the bridge abutment or bridge structure consists at least partially of in-situ concrete with an abutment wall reinforcement, and the precast concrete part at least co-forming the wing wall forms part of a formwork of the abutment wall, the precast concrete reinforcement of the precast concrete part representing at least part of the abutment wall reinforcement and / or via at least one Connection connection is connected to the abutment wall reinforcement. This reduces the cost of the formwork work. In particular, the effort for dismantling the formwork of the abutment wall is reduced, since the part of the formwork formed by the precast concrete part remains part of the bridge abutment or bridge structure in the manner of a permanent formwork and does not have to be dismantled. The time required for formwork and demoulding work as well as the construction of a corresponding bridge abutment or bridge structure is thereby significantly shortened.

Furthermore, according to the invention, the base plate of the bridge abutment or bridge structure is at least partially made of in-situ concrete with base plate reinforcement, and the precast concrete part forms part of a formwork of the base plate, the precast concrete reinforcement of the precast concrete part at least also forming the base plate reinforcement and / or via at least one connection connection the floor slab reinforcement is connected. Here, too, the formwork remains part of the abutment or bridge structure, with the advantages of a reduced time requirement mentioned in the previous paragraph.

The bridge abutment preferably has a deep foundation connected to the base plate. When creating the floor slab in in-situ concrete, the deep foundation can be easily connected to it. The ability to connect the base plate to a deep foundation is a great advantage compared to bridge abutments, which are built exclusively from prefabricated parts, since there a connection with a deep foundation is not possible or only possible with great effort.

The abutment wall reinforcement and / or the base plate reinforcement are preferably also formed by at least one unlocked part of the precast concrete reinforcement. For this purpose, a precast concrete part is created which has a reinforcement part protruding over a section created in concrete, namely the unlocked part. This is preferably arranged in such a way that it is arranged in the area of the abutment wall and / or base plate to be created in in-situ concrete and at least also forms the abutment wall reinforcement and / or base plate reinforcement when the bridge abutment is being built. In this way, a reliable connection between the abutment wall and the wing wall element and / or the base plate and the wing wall element or the corresponding reinforcements can be created in a simple manner. In addition, the introduction of reinforcement for the abutment wall and / or base plate is facilitated, which in particular reduces the effort the time required to create a corresponding bridge abutment or bridge structure is further reduced.

Preferably, the abutment wall reinforcement and / or base plate reinforcement is additionally or alternatively connected to the precast concrete reinforcement via at least one connection connection, in particular a screw connection. In this way, a connection between the precast concrete part and the abutment wall and / or between the precast concrete part and the base plate or the corresponding reinforcement can be created in a simple manner. The bridge abutment can be easily erected in a reliable and durable structure.

The wing wall element designed as a precast concrete part preferably extends from a lower edge of the abutment wall to an upper edge of the bridge abutment, but at least to an upper edge of a support bank of the abutment wall. As a result, the entire height of the structure can be formed by a single wing wall element at this point. There is no need to assemble individual wing wall elements on top of one another. The wing wall and the bridge abutment can be installed more quickly. In addition, the resulting bridge abutment has fewer seams or connection points and is therefore more reliable and more durable.

The bridge abutment preferably has a part of the formwork of the abutment wall on the outwardly facing end face of the abutment wall Formwork element, which is designed as a precast concrete part. The outwardly facing end face of the abutment wall is that side which faces away from an earth dam running behind the bridge abutment. A formwork element designed as a precast concrete part remains on the abutment wall according to the principle of lost formwork. The formwork element thus forms part of the abutment wall. Preferably, the entire formwork of the abutment wall is created on the outwardly facing end face of the abutment wall in just one formwork process, possibly using several formwork elements. As a result, the construction time for a corresponding bridge abutment according to the invention can be reduced again.

Particularly preferably, the formwork element arranged on the outwardly facing end face of the abutment wall, which is designed as a precast concrete part, also forms part of the formwork of the base plate. Thus, the formwork of both the base plate and the abutment wall in this area can be created in one operation and the construction time for a corresponding bridge abutment or bridge structure can be reduced even further.

Advantageously, on the side of the abutment wall opposite the outwardly facing end face, the abutment wall has a formwork element which forms part of the formwork of the abutment wall and which is designed as a precast concrete part. This side of the abutment wall faces an earth dam running behind the bridge abutment. The formwork element is preferably placed on the base plate on this side of the abutment wall. Such as Formwork element made of precast concrete also remains on the bridge abutment, with the advantage already described that the formwork is not required and the construction time is shortened.

The abutment wall preferably has an abutment wall reinforcement with at least one prefabricated reinforcement element, preferably at least one prefabricated reinforcement cage. Such prefabricated reinforcement elements, such as reinforcement cages, are brought to the construction site and can easily be introduced into the area of the abutment wall. This shortens the time to create an abutment wall reinforcement compared to an on-site creation. The construction time of a suitably designed bridge abutment can thus be significantly shortened once again. Connections between the individual prefabricated reinforcement elements and between the abutment wall reinforcement and the precast concrete reinforcement only need to be established on site. This can be done via a corresponding connection connection and / or by connecting the reinforcement element and an unlocked part of the precast concrete reinforcement that also forms part of the abutment wall reinforcement.

Furthermore, the invention comprises a correspondingly designed precast concrete part, which is intended for use as a wing wall element and can be used as a formwork element of an abutment wall and a base plate of a bridge abutment, the precast concrete part connecting connections for easy connection to an abutment wall reinforcement and a base plate reinforcement of the bridge abutment having. No work is required on site for an otherwise necessary subsequent installation of connection elements in the precast concrete part.

A connection connection of the precast concrete part is preferably designed as a screw connection. Thus, the connection to the abutment wall reinforcement of a bridge abutment according to the invention can be implemented in a particularly simple manner when using a precast concrete part constructed in this way.

Advantageously, the precast concrete part additionally or alternatively has a connection in the form of at least one unlocked section of the precast concrete reinforcement protruding over a section of the precast concrete part made in concrete. The reinforcement of the precast concrete part or the precast concrete reinforcement in connection with the bridge bearing is preferably shaped so that the unlocked part is arranged in the area of the abutment wall and / or base plate when used to create a bridge abutment according to the invention and part of the abutment wall reinforcement and / or there Floor slab reinforcement at least with forms. As a result, a connection between the abutment wall reinforcement and / or base plate reinforcement and the precast concrete reinforcement of the precast concrete wing wall element is established in a simple manner during the subsequent construction of the bridge abutment in in-situ concrete.

The precast concrete part preferably comprises a section designed as a formwork element and a section designed for use as a wing wall. The section designed as a formwork element can in this case preferably have the corresponding connection connections or unlocked parts of the precast concrete reinforcement. In particular, the section designed as a formwork element can be designed to be tapered compared to the section designed for use as a wing wall. This is particularly advantageous if the section designed as a formwork element is to (also) form part of the formwork of the abutment wall of a bridge abutment according to the invention. The area of the abutment wall created in in-situ concrete can therefore be made larger in proportion. This reduces the cost of materials. In addition, a tapered section can be adapted more easily to geometric requirements, for example if the bridge structure is to span an edge of the terrain or another traffic route at an angle that differs significantly from an angle of 90 °.

Bridge abutments according to the invention and corresponding bridge structures can thus also be built using a corresponding precast concrete part as a wing wall element by the method according to the invention as follows:
A wing wall is created on a blinding layer, which may be reinforced and / or provided with reinforcement elements compared to the blinding layers usually used hitherto, using at least one wing wall element made as a precast concrete part. The reinforcement of the blinding layer prevents the wing wall element from pushing through the blinding layer when it is set up. The wing wall can also be using further precast concrete parts are created in addition to the first wing wall element.

Furthermore, a floor slab reinforcement is introduced, a formwork for the floor slab is created and the floor slab is poured into in-situ concrete. A formwork of the abutment wall is created using the wing wall element designed as a precast concrete part as well as further formwork elements, possibly made of precast concrete parts. Preferably, parts of the formwork of the abutment wall also form parts of the formwork of the base plate, or vice versa. This reduces the effort required for the formwork, as it can be partially created simultaneously for the base plate and the abutment wall.

In the area of the abutment wall, an abutment wall reinforcement is introduced. The reinforcement elements are preferably introduced through pre-braided reinforcement cages that have appropriate dimensions. These can be easily connected to one another. The precast concrete parts of the formwork of the abutment wall are optionally connected via anchors to parts of the formwork made of precast concrete parts arranged on an opposite side. This enables stable formwork for the abutment wall to be created. Via the anchors, there is also an indirect connection between the precast concrete parts functioning as formwork elements and the reinforcement of the abutment wall. The abutment wall is now constructed in in-situ concrete at least up to the height of the support bench. If necessary, a chamber wall is added to the abutment wall.

The method according to the invention further comprises the step of connecting the base plate to the wing wall element and / or connecting the abutment wall to the wing wall element. For this purpose, the corresponding wing wall element has connections for the base plate reinforcement and / or the abutment wall reinforcement of the bridge abutment. These connections can be designed, for example, as screw connections and / or as unlocked elements of the precast concrete reinforcement of the precast concrete element functioning as a wing wall element.

In this way, a bridge abutment according to the invention can be created in a short time, i.e., for example, in a maximum of 10 working days, from the upper edge of the blinding layer to the bearing bench and then the construction of the superstructure of the bridge structure can be started. The anchors of the formwork of the abutment wall can then optionally be removed on the rear side of the abutment wall and the corresponding openings in the precast concrete parts functioning as the formwork element can be closed. The formwork elements remain on the bridge abutment and are part of it. Stripping the bridge abutment can therefore be omitted.

A bridge structure can then be erected on the basis of such a bridge abutment created according to the invention. For this purpose, bearings for the superstructure of a bridge are placed on the support bank of the bridge abutment. One or more bridge girders, which extend from a first bridge abutment to a second bridge abutment, can be placed on these bearings. The bridge girder or girders are preferably designed as reinforced concrete or prestressed concrete prefabricated parts or VFT girder structures (composite prefabricated part girders). A roadway slab, for example made of in-situ concrete, can be applied to the bridge girder or girders. The routes over the bridge and the corresponding access routes or a connection between the route and the access routes are then created.

Overall, a bridge bearing according to the invention or a corresponding bridge structure can thus be produced in a highly efficient manner and very much faster than conventionally.

Fig. 1

einen Horizontalschnitt durch eine Ausführungsform eines erfindungsgemäßen Widerlagers;

Fig. 2

einen Horizontalschnitt durch eine alternative Ausgestaltung eines erfindungsgemäßen Widerlagers;

Fig. 3

einen Horizontalschnitt durch ein erfindungsgemäßes Widerlager in einer dritten Ausführungsform;

Fig. 4

einen Horizontalschnitt durch ein erfindungsgemäßes Widerlager in einer vierten Ausführungsform;

Fig. 5

ein erfindungsgemäßes Brückenwiderlager in einer Schnittdarstellung;

Fig. 6

das Brückenwiderlager aus Fig. 6 in einer Ansicht nach Schnitt VI;

Fig. 7

eine Ausführungsform eines erfindungsgemäßen Betonfertigteils in einer Aufsicht;

Fig. 8

eine alternative Ausführungsform eines erfindungsgemäßen Betonfertigteils in einer Aufsicht;

Fig. 9

eine Seitenansicht eines erfindungsgemäßen Betonfertigteils aus Richtung IX in Fig. 8.

Further advantageous refinements of the invention are explained in more detail with reference to the exemplary embodiments shown below. It shows in a schematic representation:

Fig. 1

a horizontal section through an embodiment of an abutment according to the invention;

Fig. 2

a horizontal section through an alternative embodiment of an abutment according to the invention;

Fig. 3

a horizontal section through an inventive abutment in a third embodiment;

Fig. 4

a horizontal section through an inventive abutment in a fourth embodiment;

Fig. 5

a bridge abutment according to the invention in a sectional view;

Fig. 6

the bridge abutment Fig. 6 in a view according to section VI;

Fig. 7

an embodiment of a precast concrete part according to the invention in a plan view;

Fig. 8

an alternative embodiment of a precast concrete part according to the invention in a plan view;

Fig. 9

a side view of a precast concrete part according to the invention from the direction IX in Fig. 8 .

Identical or similarly acting parts are provided with identical reference numerals in the following description of the figures, insofar as this is useful. Individual technical features of the exemplary embodiments described below can be combined with the features of the independent claims and with the features of individual exemplary embodiments described above to form objects according to the invention.

FIGS. 1 to 4 show different embodiments of a bridge abutment 2 according to the invention in a cross section viewed from above. The square The hatched components are designed as precast concrete parts. Cross-hatched areas mark construction elements made in in-situ concrete. The bridge abutment 2 comprises a base plate 4. Furthermore, the bridge abutment 2 comprises an abutment wall 6 and at least one wing wall 8 with at least one wing wall element 10. A bridge abutment 2 according to the invention can also have more than two wing walls 8 if, for example, it is to be built in several construction phases. The exemplary embodiments have two wing walls 8. In the exemplary embodiments, the wing wall elements 10 each form a wing wall 8. It is conceivable here to create a wing wall 8 from a plurality of wing wall elements 10. The vertical surfaces of the abutment wall 6 are formed here by formwork elements 16, which are designed as precast concrete parts and are formwork parts for the core 6 'of the abutment wall 6 made of in-situ concrete during the manufacture of the bridge abutment 2 or the abutment wall 6. The side of the abutment wall 6 is formed by the wing wall elements 10. The wing wall elements 10 have connections for an abutment wall reinforcement 7. In the Figs. 1 to 3 these are unlocked sections of the precast concrete reinforcement 19 of the precast concrete elements 18 forming the wing wall elements 10 Fig. 1 the activated reinforcement of the respective wing wall elements 10 is designed in such a way that they protrude laterally from the wing wall element 10 into the area of the in-situ concrete of the abutment wall 6. In this way, a connection between the abutment wall 6 and the wing wall element 10 or the abutment wall reinforcement 7 and the precast concrete reinforcement 19 can be established in a simple manner.

In Fig. 2 The wing wall elements 10 designed as precast concrete parts 18 have an area 18 'designed as a formwork element in the area of the abutment wall 6, which is tapered compared to an area 18 "designed for use as a wing wall 8 Fig. 2 initially released parts of the precast concrete reinforcement 19. In Fig. 2 These elements extend in a longitudinal direction L of the precast concrete part 18. The activated reinforcement elements do not protrude laterally beyond an imaginary envelope of the wing wall element 10. Wing wall elements 10 designed in this way can be handled more easily, the risk of damage to the activated reinforcement elements being reduced. A connection between the wing wall element 10 and the abutment wall 6 can be formed via such unlocked reinforcement elements.

Fig. 3 shows a further alternative embodiment of an activated reinforcement of the wing wall elements 10 designed as precast concrete parts 18 Fig. 2 and or Fig. 3 with a reinforcement 19 protruding laterally beyond the section made in concrete, which protrudes into the area of the abutment wall 6 to be made in in-situ concrete 6 ', according to FIG Fig. 1 , is conceivable.

Fig. 4 shows an alternative embodiment of a bridge abutment 2 according to the invention in a horizontal section viewed from above. The wing walls 8 are formed from wing wall elements 10. A wing wall element 10 formed as a precast concrete part 18 and arranged adjacent to the abutment wall has connecting connections 20 with which the precast concrete reinforcement 19 is connected to the abutment wall reinforcement 7 of the part of the abutment wall 6 made in in-situ concrete 6 '. This ensures a reliable and permanent connection between the wing wall elements 10 and the abutment wall reinforcement 7. The bridge abutment 2 after Fig. 4 is designed for a bridge structure that spans an obstacle or a traffic route at an angle different from 90 °. In the present case, the angle is approximately 60 °. The precast concrete parts 16 and 18 are thus partially beveled at their ends in order to enable such a bridge abutment. The precast concrete parts 18 each have a section 18 'designed as a formwork element and a section 18 "designed for use as a wing wall 8, the section 18' being tapered compared to the section 18". A corresponding beveling of the end of the component 18 located in the area of the abutment wall 6 is thus possible more easily than if the precast concrete parts 18 did not have such a taper. This configuration of the precast concrete parts 18 is possible regardless of whether these connecting connections 20 or unlocked parts of the precast concrete reinforcement have. A combination of one or more embodiments of the Figs. 1 to 3 and the connection terminals 20 according to FIG Fig. 4 is also possible.

The floor slab 4 made of in-situ concrete can be connected to deep foundations 14, as in FIG Fig. 5 shown. This shows a cross-section viewed from one side in the direction V - V through the bridge abutment of FIG Fig. 4 . The formwork elements 16 extend in Fig. 5 on the outwardly facing end face S of the abutment wall 6 from the base plate 4 via the abutment wall 6. The formwork elements 16 on the rear side of the abutment wall 6 are supplemented above the base plate 4 after the base plate 4 has been poured and the abutment wall reinforcement 7 has been introduced. The cavity between the formwork elements 16 is then filled with in-situ concrete. The area between the abutment wall 6 and the wing wall elements 10 is filled with soil 22 in the finished state of a bridge structure.

Fig. 6 shows a view of a bridge abutment 2 according to the invention from a rear side of the abutment wall 6. The base plate 4, which is connected to deep foundations 14, is shown again. The wing wall elements 10 each have a precast concrete reinforcement 19. The wing wall elements 10 are connected to the base plate reinforcement 5 via the precast concrete reinforcement.

Fig. 7 shows a precast concrete part 18 according to the invention for use as a formwork element of an abutment wall 6 of a bridge abutment 2, which is at least partially made of in-situ concrete of the precast concrete part 18 out. This unlocked area of the precast concrete reinforcement 19 is designed for connection to an abutment wall reinforcement 7. For this purpose, this part of the reinforcement 19 when using an inventive Precast concrete part 18 positioned in the area of the abutment wall 6 and forms part of the abutment wall reinforcement 7.

Fig. 8 shows an alternative embodiment of a precast concrete part 18 according to the invention. The precast concrete part 18 according to FIG Fig. 7 again has a section formed in concrete. A precast concrete reinforcement 19 is introduced into this. The precast concrete reinforcement 19 has connection connections 20 for reinforcement elements of other sections of a bridge structure to be constructed. These connection connections 20 are designed here in the form of screw connections. The precast concrete part 18 according to Fig. 8 has a tapered section 18 'which is introduced into the area of an abutment wall 6 to be created. A connection to an abutment wall reinforcement 7 (see e.g. Fig. 4 ) an abutment wall 6 to be created. In a section 18 ″ provided for use as a wing wall 8, screw connections 20 of the precast concrete reinforcement 19 are designed for connection to a base plate reinforcement 5 of the bridge abutment 2 to be created.

Fig. 9 shows a side view of a precast concrete part 18 according to the invention according to FIG Fig. 6 respectively. Fig. 7 . The areas in which, in a bridge abutment 2 according to the invention, the base plate 4 and the abutment wall 6 are arranged behind the illustrated precast concrete part are indicated by dashed lines. The precast concrete part 18 has a section 18 'designed as a formwork element and a section 18 "designed for use as a wing wall 8. Between the sections 18 'and 18 ", the precast concrete part 18 has a step. The lower side of the step extends from a base plate 4 of a bridge abutment 2 to be constructed to the support bank A of the bridge abutment 2 to be constructed. The higher side extends from a base plate 4 to an upper side O of the bridge abutment 2 to be created. Thus, the precast concrete part 18 can be used in a simple manner to create a bridge abutment 2 or bridge structure according to the invention.

Claims (13)

1. A bridge abutment (2) made of reinforced concrete having a base plate (4), an abutment wall (6), and at least one wing wall (8), which comprises at least one wing wall element (10) formed as a precast concrete part (18) having a precast concrete part reinforcement (19), wherein the abutment wall (6) is formed at least partially by in-situ concrete (6') having an abutment wall reinforcement (7),
   characterized in that the precast concrete part (18) forms a part of a formwork of the abutment wall (6) and the precast concrete part reinforcement (19) at least partially forms the abutment wall reinforcement (7) and/or is connected via at least one connecting attachment (20) to the abutment wall reinforcement (7) and the base plate (4) is at least partially formed by in-situ concrete (4') having a base plate reinforcement (5), wherein the precast concrete part (18) forms a part of a formwork of the base plate (4) and the precast concrete part reinforcement (19) at least partially forms the base plate reinforcement (5) and/or is connected to the base plate reinforcement (5) via at least one connecting attachment (20) .
2. The bridge abutment as claimed in claim 1, characterized by a deep foundation (14) connected to the base plate (4).
3. The bridge abutment as claimed in any one of the preceding claims, characterized in that the abutment wall reinforcement (7) and/or the base plate reinforcement (5) is at least partially formed by an exposed part of the precast concrete part reinforcement (19) of the precast concrete part (18).
4. The bridge abutment as claimed in any one of the preceding claims, characterized in that the connecting attachment (20) is formed as a screw attachment.
5. The bridge abutment as claimed in any one of the preceding claims, characterized in that the abutment wall (6) comprises, on its end face (S) facing outward, a formwork element (16), which is formed as a precast concrete part, forming a part of the formwork of the abutment wall (6).
6. The bridge abutment as claimed in any one of the preceding claims, characterized in that the abutment wall (6) comprises, on the face opposite to the end face (S) facing outward, a formwork element (16), which is formed as a precast concrete part, forming a part of the formwork of the abutment wall (6).
7. A precast concrete part (18) for use as a wing wall element (10) of an abutment wall (6) to be produced at least partially from in-situ concrete (6') and a base plate (4) of a bridge abutment (2) as claimed in any one of claims 1 to 6, having a precast concrete part reinforcement (19), comprising connecting attachments (20), which are designed to connect the precast concrete part reinforcement (19) to an abutment wall reinforcement (7) and a base plate reinforcement (5) of the bridge abutment (2).
8. The precast concrete part as claimed in claim 7, characterized in that a connecting attachment (20) is formed as a screw attachment.
9. The precast concrete part as claimed in claim 7 or 8, characterized in that a connecting attachment (20) is formed by at least one exposed element of the precast concrete part reinforcement (19) protruding over a section of the precast concrete part (18) produced in concrete.
10. The precast concrete part as claimed in any one of claims 7 to 9, comprising a section (18') formed as a formwork element and a section (18") formed for use as a wing wall (8), in particular wherein the section (18') formed as a formwork element is tapered in relation to the section (18") formed for use as a wing wall (8).
11. A bridge structure comprising at least one abutment as claimed in any one of claims 1 to 6, in particular comprising at least one precast concrete part as claimed in any one of claims 7 to 10.
12. A method for manufacturing a bridge abutment comprising the following steps

    - producing at least one wing wall (8) using at least one wing wall element (10) produced as a precast concrete part (18),

    - introducing a base plate reinforcement (5) of a base plate (4),

    - producing a formwork of the base plate (4),

    - casting the base plate (4) in in-situ concrete (4'),

    - producing a formwork of the abutment wall (6) using the wing wall element (10) and further formwork elements (16) produced as precast concrete parts,

    - introducing an abutment wall reinforcement (7), preferably using prefinished reinforcement elements, in particular reinforcement cages,

    - casting the abutment wall (6) at least up to the height of a benching in in-situ concrete (6'),

    - connecting a precast concrete part reinforcement (19) of the wing wall element (10) produced as a precast concrete part (18) to the base plate reinforcement (5) of the base plate (4) and to the abutment wall reinforcement (7).
13. A method for manufacturing a bridge structure, comprising the following method steps

    - manufacturing at least one bridge abutment (2) by way of the method as claimed in claim 12,

    - producing bearings on the benching,

    - placing at least one bridge girder, which is preferably produced as a precast concrete part, on the bearings,

    - adding a roadway plate on the bridge girder.

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