EP3696320A1 - Culée de pont pourvu de raccordement entre une armature de paroi de coulée et un élément de paroi ailée - Google Patents

Culée de pont pourvu de raccordement entre une armature de paroi de coulée et un élément de paroi ailée Download PDF

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Publication number
EP3696320A1
EP3696320A1 EP20156352.5A EP20156352A EP3696320A1 EP 3696320 A1 EP3696320 A1 EP 3696320A1 EP 20156352 A EP20156352 A EP 20156352A EP 3696320 A1 EP3696320 A1 EP 3696320A1
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EP
European Patent Office
Prior art keywords
reinforcement
abutment
precast concrete
wall
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.)
Granted
Application number
EP20156352.5A
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German (de)
English (en)
Other versions
EP3696320B1 (fr
Inventor
Theo Reddemann
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.)
Bauunternehmung Gebr Echterhoff & Co Kg GmbH
Original Assignee
Bauunternehmen Echterhoff & Co KG GmbH
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Publication of EP3696320A1 publication Critical patent/EP3696320A1/fr
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Publication of EP3696320B1 publication Critical patent/EP3696320B1/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
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/02—Piers; Abutments ; Protecting same against drifting ice
    • 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

Definitions

  • 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 mostly made of reinforced concrete.
  • 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.
  • 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 manufactured significantly more 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 is erected more quickly can be. 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 time.
  • this object is achieved by a bridge abutment made of reinforced concrete, with a base plate, an abutment wall and at least one wing wall, the wing wall comprising at least one wing wall element designed as a precast concrete part with a precast concrete reinforcement.
  • the precast concrete reinforcement forms a reinforcement of the base plate and / or abutment wall at least with and / or the precast concrete reinforcement is connected to a reinforcement of the base plate and / or abutment wall.
  • a precast concrete part correspondingly designed as a wing wall element for a bridge abutment is therefore also the subject of the invention.
  • 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.
  • the wing wall is formed by one or more precast concrete parts.
  • this part of the wing wall preferably the entire wing wall, does not have to be cast on site, but can be made up of one or more prefabricated ones Components are created. This shortens the construction time for a corresponding bridge abutment or bridge structure.
  • the precast concrete part in the bridge abutment according to the invention has a connection with at least one further component of the bridge abutment or its reinforcement via its precast concrete reinforcement.
  • This further component of the bridge abutment is the abutment wall and / or the base plate of the corresponding bridge abutment.
  • 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 or that the corresponding reinforcements of the base plate and / or abutment wall are at least formed by the precast concrete reinforcement.
  • 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 created.
  • a combination of the connection options is also conceivable.
  • the abutment wall of the bridge abutment or bridge structure preferably consists at least partially of in-situ concrete with an abutment wall reinforcement, and the precast concrete part that at least co-forms 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 is connected to the abutment wall reinforcement via at least one connection connection.
  • 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 like 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.
  • 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.
  • the formwork remains part of the abutment or bridge structure, with the advantages of a shorter time requirement mentioned in the previous paragraph.
  • the bridge abutment particularly preferably has a deep foundation connected to the base plate.
  • the deep foundation can be easily connected to it.
  • the ability to connect the base plate to a deep foundation is a great advantage over bridge abutments, which are built exclusively from prefabricated parts, since a connection with a deep foundation is not possible there or only 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.
  • 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 so 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.
  • 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.
  • the introduction of reinforcement for the abutment wall and / or base plate is facilitated, which further reduces the effort, in particular the time required, for creating a corresponding bridge abutment or bridge structure.
  • 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.
  • connection connection in particular a screw connection.
  • 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.
  • the entire height of the structure can be formed by a single wing wall element at this point.
  • the wing wall and the bridge abutment can be installed more quickly.
  • the resulting bridge abutment has fewer seams or connection points and is therefore more reliable and more durable.
  • the bridge abutment preferably has on the outwardly facing end face of the abutment wall a formwork element which forms part of the formwork of the abutment wall and 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.
  • 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 further reduced.
  • 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.
  • the formwork for both the base plate and the abutment wall in this area can be created in one work step and the construction time for a corresponding bridge abutment or bridge structure can be reduced even further.
  • 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.
  • Such a formwork element designed as a precast concrete part also remains on the bridge abutment, with the advantage already described that the formwork is not removed 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.
  • prefabricated reinforcement elements such as reinforcement cages
  • the construction time of a suitably designed bridge abutment can be significantly shortened in this way.
  • Connections between the individual prefabricated reinforcement elements and between the abutment wall reinforcement and the precast concrete reinforcement only need to be created on site. This can be done via a corresponding connecting 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.
  • 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 / or base plate of a bridge abutment, the precast concrete part having at least one connection connection for easy connection to an abutment wall reinforcement and / or base plate reinforcement of the bridge abutment. No work is required on site for an otherwise necessary subsequent installation of connection elements in the precast concrete part.
  • connection connection of the precast concrete part is preferably designed as a screw connection.
  • connection to the abutment wall reinforcement of a bridge abutment according to the invention can be realized in a particularly simple manner when using a precast concrete part designed in this way.
  • the precast concrete part additionally or alternatively has a connection terminal in the form of at least one section of the made in concrete Precast concrete part protruding, unlocked section of the precast concrete part reinforcement.
  • 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 there is part of the abutment wall reinforcement and / or Floor slab reinforcement at least with forms.
  • 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 preferably have the corresponding connection connections or unlocked parts of the precast concrete reinforcement.
  • 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 intended 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.
  • a tapered section can be adapted more easily to geometric requirements, for example if the Bridge structure is intended to span an edge of the terrain or another traffic route at an angle significantly different from a 90 ° angle.
  • 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 created using further precast concrete parts in addition to the first wing wall element.
  • a floor slab reinforcement of a floor slab 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.
  • 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 for the formwork, since this can be done partially at the same time for the base plate and 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 allows 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.
  • 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.
  • a bridge abutment according to the invention can be removed from the upper edge of the blinding layer in a short time, ie, for example, in a maximum of 10 working days up to the support bench and then start building the superstructure of the bridge structure.
  • the anchors of the formwork of the abutment wall can then optionally be removed on the back of the abutment wall and the corresponding openings in the precast concrete parts functioning as formwork elements can be closed.
  • the formwork elements remain on the bridge abutment and are part of it. Stripping the bridge abutment can thus be omitted.
  • a bridge structure can then be erected on the basis of such a bridge abutment created according to the invention.
  • 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 deck for example made of in-situ concrete, can be applied to the bridge girder or girders. Then the routes over the bridge and the corresponding access routes or a connection between the route and the access routes are created.
  • 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.
  • 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 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.
  • 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.
  • the wing wall elements 10 each form a wing wall 8.
  • a wing wall 8 from several wing wall elements 10.
  • the vertical surfaces of the abutment wall 6 are here through Formwork elements 16 are formed, 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.
  • 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.
  • the wing wall elements 10 designed as precast concrete parts have an area 18 'designed as a formwork element, which is tapered compared to an area 18 "designed for use as a wing wall 8.
  • the area 18' designed as a formwork element in Fig. 2 initially released parts of the precast concrete reinforcement 19.
  • 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 unlocked reinforcement elements being reduced. About such Unlocked reinforcement elements can form a connection between the wing wall element 10 and the abutment wall 6.
  • Fig. 3 shows a further alternative embodiment of an activated reinforcement of the wing wall elements 10 designed as precast concrete parts 18.
  • the precast concrete reinforcement 19 also extends through the tapered area 18 'of the precast concrete part 18 designed as a formwork element.
  • a combination of the arrangements of the activated reinforcements is also shown 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 connection 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 provide such a bridge abutment to enable.
  • 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 connection connections 20 or released 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.
  • 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. They thus form both part of the formwork of the base plate 4 and part of the formwork of 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 cast 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.
  • the precast concrete part 18 comprises a section made in concrete with precast concrete reinforcement 19. Part of this precast concrete reinforcement stands as unlocked reinforcement over the section made in 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, when a precast concrete part 18 according to the invention is used, this part of the reinforcement 19 is 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 portion 18 'that extends into the Area of an abutment wall 6 to be created is introduced.
  • a connection to an abutment wall reinforcement 7 can be established via screw connections 20 fitted in the tapered section 18 ′ Fig. 4 ) an abutment wall 6 to be created.
  • 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 Fig. 6 or. Fig. 7 .
  • the areas are indicated by dashed lines in which, in a bridge abutment 2 according to the invention, the base plate 4 and the abutment wall 6 are arranged behind the precast concrete part shown.
  • 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 created to the bearing bank A of the bridge abutment 2 to be created.
  • the higher side extends from a base plate 4 to an upper side O of the bridge abutment 2 to be created 18 can be used in a simple manner to create a bridge abutment 2 or bridge structure according to the invention.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
EP20156352.5A 2019-02-13 2020-02-10 Culée de pont pourvu de raccordement entre une armature de paroi de coulée et un élément de paroi ailée Active EP3696320B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202019100831.8U DE202019100831U1 (de) 2019-02-13 2019-02-13 Brückenwiderlager und Brückenbauwerk
DE202019104913.8U DE202019104913U1 (de) 2019-02-13 2019-09-05 Brückenwiderlager mit Verbindung zwischen Widerlagerwandbewehrung und Flügelwandelement

Publications (2)

Publication Number Publication Date
EP3696320A1 true EP3696320A1 (fr) 2020-08-19
EP3696320B1 EP3696320B1 (fr) 2021-10-13

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EP20156352.5A Active EP3696320B1 (fr) 2019-02-13 2020-02-10 Culée de pont pourvu de raccordement entre une armature de paroi de coulée et un élément de paroi ailée

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Country Link
EP (1) EP3696320B1 (fr)
DE (2) DE202019100831U1 (fr)
DK (1) DK3696320T3 (fr)
PL (1) PL3696320T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021102625A1 (de) 2021-02-04 2022-08-04 Echterhoff Expressbrücken GmbH Brückenwiderlager mit Betonfertigteilen sowie Verfahren zu dessen Herstellung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016205907A1 (de) * 2016-04-08 2017-10-12 Db Bahnbau Gruppe Gmbh Verfahren und Vorrichtung zur Herstellung einer Brückenkonstruktion unter Verwendung von Fertigteilen
CN107313339A (zh) * 2017-07-28 2017-11-03 武汉理工大学 装配式桥台及其施工方法
CN108442239A (zh) * 2018-05-28 2018-08-24 湘潭大学 一种全装配式轻型桥台及其施工方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016205907A1 (de) * 2016-04-08 2017-10-12 Db Bahnbau Gruppe Gmbh Verfahren und Vorrichtung zur Herstellung einer Brückenkonstruktion unter Verwendung von Fertigteilen
CN107313339A (zh) * 2017-07-28 2017-11-03 武汉理工大学 装配式桥台及其施工方法
CN108442239A (zh) * 2018-05-28 2018-08-24 湘潭大学 一种全装配式轻型桥台及其施工方法

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Publication number Publication date
DK3696320T3 (da) 2022-01-17
EP3696320B1 (fr) 2021-10-13
PL3696320T3 (pl) 2022-09-19
DE202019104913U1 (de) 2019-10-22
DE202019100831U1 (de) 2019-03-25

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