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Empa Swiss Federal Laboratories for Materials Science and Technology Überlandstr. 129 8600 Dübendorf, Switzerland http://www.empa.ch
Contact Mr Dr. Christoph Czaderski +41 58 765 42 16
Company logo of Empa Swiss Federal Laboratories for Materials Science and Technology
Empa Swiss Federal Laboratories for Materials Science and Technology

Brücken sanieren mit smartem Stahl

Neues Verstärkungssystem für Stahlbetonbrücken

(PresseBox) (Dübendorf, )
Viele Brücken in der Schweiz wurden vor den 1980er-Jahren gebaut – und nähern sich damit dem Ende ihrer Lebensdauer. Empa-Forschende entwickeln ein neuartiges Verstärkungssystem, das in die Jahre gekommene Brücken aus Stahlbeton wieder fit macht. Erstmals kombinierten sie ultrahochfesten Faserbeton mit Formgedächtnisstahl, der sich beim Erhitzen zusammenzieht und so Betonstrukturen vorspannt.

Heute werden Brücken bereits mit einer zusätzlichen Schicht aus ultrahochfestem faserbewehrtem Beton (UHPFRC) verstärkt. Dieser Hochleistungsbeton wird direkt auf die Fahrbahnplatten aufgebracht, ist besonders dicht und widerstandsfähig gegen Wasser. Herkömmlicher Bewehrungsstahl wird darin eingebettet, um die Tragfähigkeit zu erhöhen.

Ein Empa-Team um Forscherin Angela Sequeira Lemos und Christoph Czaderski
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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.