Autobahnkreuz Nürnberg Ost: A9-B4 Brücken- und Rampenbau

Beskrivelse: Neubau einer Autobahnrampe und einer Spannbetonbrücke der A9 über B4 zur Entzerrung des Verkehrs im Autobahnkreuz Nürnberg Ost, Bauvolumen: 4,4 Mio. CHF, Bauzeit: Aug 2019 - Nov 2020. Les mer ↧

Ny rampe og broarbeid

The 'Autobahnkreuz Nürnberg Ost: A9-B4 Brücken- und Rampenbau' project involved the construction of a new motorway ramp alongside the existing BAB A9 and the demolition and reconstruction of the BAB A9 bridge. Both structures span the B4 and are part of the capacity expansion of the Nürnberg Ost interchange between the A9 and A6 motorways. This project was divided into two key phases: the first phase, completed in 2019/2020, involved building and commissioning a new ramp adjacent to the existing bridge. The second phase, carried out in 2021, involved wholly rerouting the motorway traffic, demolishing the existing bridge, and constructing a new one in a single operation.

Logistikk utfordringer i fase 2

The second phase of construction posed significant logistical challenges due to the limited space available. The work was conducted in an 'island situation' because motorway traffic was redirected onto bridges flanking the existing bridge. This created constraints that required careful maneuvering and staging of equipment in a highly confined area. The critical tasks in this phase included the installation of bored piles, steel and reinforced concrete, composite beams (VFT), sealing works, and railings.

Innovativ brudesign

A notable engineering aspect of the project was the design of the bridge's static system. Instead of the arch carrying the deck as in conventional designs, the arch only has a supportive role when combined with the pre-stressed superstructure. This innovative method necessitated the use of elaborate scaffolding for both the arch and the deck slab. The finished structure aims to streamline traffic from the A9 Berlin directly onto the A6 towards Heilbronn, reducing congestion at the interchange.

Prosjekt tidslinje og ledelse

The project broke ground in August 2019, with completion occurring in two stages; the initial ramp was operational by the end of 2020, and the bridge reconstruction concluded in October 2021. The entire project was overseen by the Autobahndirektion Nordbayern, with Implenia Construction GmbH Nürnberg serving as project manager. The planning and design were undertaken by Engler, Rüdt & Sättele Planen + Beraten and ZPP Ingenieure AG.

Total kostnad: 7 mill EUR

The total project cost amounted to approximately 7.6 million CHF or 7 million EUR, with funds allocated based on average annual exchange rates during implementation. This substantial investment reflects the complex phased approach and the innovations required in the bridge construction.

Kategorisering

Type prosjekt	Nybygg
Hovedkategori	Infrastruktur
Underkategori	Broer

Fase: Ferdig bygd

Byggestart	AUGUST 2019
Ferdigstilles	NOVEMBER 2020

Adresse

90475 Feuchter Forst

Verdi og størrelse

Kontraktsform	Ukjent
Prosjektverdi	4 mill
Pris per kvm	Ukjent
Areal	Ukjent

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Aktører

Byggherre

Autobahndirektion Nordbayern

Arkitekt

Engler, Rüdt & Sättele Planen + Beraten

RI	ZPP Ingenieure AG

Entreprenør

Implenia

Entreprenør

Implenia

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21. Mar 2025: Implenia

Brücke A9 über B4. Die Maßnahme umfasst sowohl den Neubau einer Autobahnrampe neben der vorhanden, bestehenden Autobahn BAB A9, als auch den Abbruch u...

https://implenia.com/de-de/referenzen/detail/ref/bruecke-a9-ueber-b4/

21. Mar 2025: Implenia

Direktrampe A9 über B4. Die Maßnahme umfasst den Neubau einer Autobahnrampe neben der vorhanden, bestehenden Autobahn BAB A9 und überspannt die B4.. D...

https://implenia.com/de-de/referenzen/detail/ref/direktrampe-a9-ueber-b4/

Oppdateringer

21. Mar 2025

Byggestart lagt til: AUGUST 2019
Ferdigstillelse lagt til: NOVEMBER 2020
Prosjektverdi lagt til: 4 mill CHF
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