Preview

Author(s):	Forstlechner, Franz Xaver; Freytag, Bernhard; Peters, Stefan
Title:
Abstract:	Der vorliegende Bericht beschreibt Untersuchungen über die Eignung besandeter CFK-Lamellen als Spannglieder für dünne Carbonbeton-Platten. Da die Einleitung der Vorspannkraft ausschließlich über Verbund zwischen Spannglied und Beton erfolgt, werden im Rahmen der Arbeit Auszieh- und Spannkraft-Einleitungsversuche durchgeführt. Durch die Versuche wird die Verbund-Arbeitslinie ermittelt und die Einleitungslänge der Vorspannkraft abgeschätzt. Darüber hinaus wird durch 4-Punkt-Biegeversuche das Tragverhalten vorgespannter Carbonbeton-Platten untersucht und die Einflüsse der Verbundfestigkeit erörtert. Auf Grundlage der gewonnen Erkenntnisse wird ein Modell zur Beschreibung des Biegetragverhaltens erstellt und ein Bemessungskonzept abgeleitet. Pre-tensioning of thin-walled carbon-concrete slabs The present article describes investigations on the suitability of sanded CFRP-slats as tendons for thin-walled carbon-concrete slabs. Since the pre-stressing force is introduced into the member only by bond between tendon and concrete, pull-out and pre-stress introduction tests are performed in the context of this work. Based on the results of these tests the bond-slip diagram is determined and the pre-stress introduction length is estimated. Furthermore, the structural behaviour of pre-stressed carbon-concrete slabs is investigated by means of bending tests, and the influences of reinforcement's bond characteristics are discussed. From the obtained test results a model is derived describing the bending behaviour. Finally, dimensioning recommendations for pre-stressed carbon-concrete slabs are proposed.
Source:	Beton- und Stahlbetonbau 110 (2015), No. 6
Page/s:	419-428
Language of Publication:	German

I would like to buy the article

You can download this article for 25 € as a PDF file (0.96 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 "Beton- und Stahlbetonbau" you can access this article via Wiley Online Library.

I would like to order "Beton- und Stahlbetonbau"

This article has been published in the journal "Beton- und Stahlbetonbau". 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.