Vergleich berechneter und gemessener Verformungen der Vorpommernbrücke über die Warnow in Rostock

Bei Spannbetonkonstruktionen ist grundsätzlich ein Nachweis der Verformungen erforderlich. Ausgehend von allgemeinen Betrachtungen zum Nachweis der Bauteilverformungen werden wesentliche materialseitige Einflüsse auf die Verformungsvorhersage diskutiert. Es wird deutlich, dass eine genaue Berechnung der Verformung nur bedingt möglich ist. Am Beispiel der Vorpommernbrücke über die Warnow in Rostock wird der Einfluss von nichtlinearen Materialgesetzen auf die Verformungsvorhersage verdeutlicht. Der Vergleich der Berechnungsergebnisse mit den Messwerten der Verformungen ergab eine gute Übereinstimmung. Comparison of Calculated and Measured Deformations of the West‐Pomerania‐Bridge in Rostock Generally, a proof of the deformations of prestressed concreteconstructions is required. On the basis of a general consideration of the structural deformations the influence of significant material characteristics on the predicted deformations is discussed in this paper. It will be obvious, that an accurate estimation is only possible in a restricted manner. The West‐Pomerania‐Bridge over the Warnow in Rostock serves as an example, to show the influence of non‐linear material‐laws on the predicted deformations. The comparison of the calculated deformations with the measurements results in a good agreement.     

Hauptbahnhof Dresden – Instandsetzung und Umbau der Bahnsteighallen

The refurbishment of Dresden Main Station. Refurbishment Dresden's historic main station has been unique, due to the large size of the new 30.000 m² membrane roof and the requirement to carry out all works while the station continued to offer a normal service for passengers. The architectural design, by Foster and Partners, was based on the idea of “wrapping” the structure with a PTFE‐coated glass‐fibre membrane. The existing steel structure has also been refurbished and reinforced in order to support the new roof. One of the most significant engineering challenges faced by the engineering team was to manage the load transfer from the membrane, through the existing steelwork into the foundations. The project's design brief was to keep and restore as many of the original building elements as possible, such as the structure and facades. When it was necessary to replace building components, contemporary solutions were chosen which were in keeping with the originals, in order to preserve the character of the station halls. The completed project respects and emphasises the station's history, while incorporating state of the art techniques that represent the development of Deutsche Bahn.     

Glasdach Mensa und Rektorat der Technischen Universität Dresden

Glass Roof of the refectory and the rectorate at the Technische Universität Dresden. A Glass Roof has been erected during the modernisation of the refactory and the rectorate of the Technische Universität Dresden. The design and the planning process of the undirected glass roof with the structural use of glass beams are explained. This paper describes the tests for an individual approval for the use of glass in the roof construction that is not regulated in building codes. There are further emphasises the manufacture, the production and the assembly of the glass roof.