Preview

Author(s):	Keil, Andreas; Wenger, Philipp
Title:
Abstract:	Mit der Fertigstellung der Grubentalbrücke im Abschnitt 8.1 des Verkehrsprojekts VDE 8 wurde im Sommer 2013, am Hochpunkt des Streckenabschnitts Ebensfeld-Erfurt, ein weiterer Lückenschluss auf der Neubaustrecke Nürnberg-Erfurt-Halle/Leipzig-Berlin (VDE 8) vollbracht. Die Grubentalbrücke gehört zu einer Reihe von besonderen Bauwerken des Neubauprojekts, die in einer neuen, in semiintegraler, Bauart errichtet wurden. Über die konstruktionsbedingten Besonderheiten dieser Bauart wurde bereits in der Bautechnik in Heft 10/2011 berichtet [1], hier mit dem Fokus auf die planerischen Besonderheiten und Anforderungen semiintegraler Brücken. Der vorliegende Beitrag soll nun die Besonderheiten bei der Bauausführung näher beleuchten. Dies beinhaltet einerseits Anforderungen an den Bauablauf und die Bautechnologie, bedingt durch die semiintegrale Bauweise, wie beispielsweise das ‘Einstellen von Biegemomenten’ im Zuge des Baufortschritts. Andererseits sollen auch allgemeingültige Sachverhalte bei der Ausführung einer Spannbetonbrücke Erwähnung finden, denen jedoch bei der Ausführung einer integralen bzw. semiintegralen Talbrücke eine besondere Bedeutung zukommt. The semi-integral Grubental-Bridge - specific challenges during construction With the completion of the Grubental-Bridge in summer 2013, within the sector 8.1 of the German major infrastructure project VDE8, situated at the up-station of the track-section Ebensfeld-Erfurt, yet another closure of the new high-speed line Nuremberg-Erfurt-Halle/Leipzig-Berlin was achieved. The Grubental-Bridge is among a series of special bridges, which were build based on a new construction method, as integral or semi-integral bridges. In the journal Bautechnik 10/2011 [1] the specifics of the integral construction method were already described, focusing on the design-related specifics and challenges. Following up, the report at hand shall highlight selected specific challenges during the construction of the bridge. It reflects specific requirements for the construction and equipment, connected to the semi-integral design, such as the ‘adjusting of bending stresses’ in the course of construction, for instance. Beyond that some general issues in connection with the construction of a pre-stressed concrete bridge shall be introduced, which however become more important in the case of a integral or semi-integral bridge, as for instance the geometric control during the erection process.
Source:	Bautechnik 92 (2015), No. 2
Page/s:	134-143
Language of Publication:	German

I would like to buy the article

You can download this article for 25 € as a PDF file (2.44 MB).
The PDF file can be read, printed and saved.
Duplication and forwarding to third parties is not allowed.

Please enter your email address now to start the order process.
The link for the download will be sent to the email address stated after the
order process has been completed.

Your email address

I am an online subscriber

As an online subscriber of the journal "Bautechnik" you can access this article via Wiley Online Library.

I would like to order "Bautechnik"

This article has been published in the journal "Bautechnik". If you would like to learn more about the journal, you can order a free sample copy or find out more information on our website.

Prices include VAT and postage. Prices for 2017/2018.
€ Prices apply to Germany only. Subject to alterations, errors excepted.