Preview

Author(s):
Title:
Abstract:	Kaltgefertigte Hohlprofile europäischer Hersteller weisen in der Regel bessere Zähigkeitseigenschaften auf als in DIN EN 10219 gefordert. Gleichwohl treten häufig Schwierigkeiten beim Einsatz kaltgefertigter Hohlprofile auf, da die Nachweisregeln zur Stahlgütewahl nach DIN EN 1993-1-10 dafür nicht anwendbar sind. Deswegen wurde ein Bemessungskonzept zur Stahlgütewahl entwickelt, welches auf realen Zähigkeitsmessungen an kaltgefertigten Hohlprofilen und effektiver Dehnungen beruht. Diese plastischen Dehnungen in den gebogenen Bereichen können zu einem Abfall der Materialzähigkeit führen. Für kreisförmige und rechteckige kaltgefertigte Hohlprofile wurde infolgedessen ein Verschiebungsterm DTcf zur Berücksichtigung dieser Zähigkeitsreduktion in Analogie zum temperaturbasierten Sprödbruchkonzept in DIN EN 1993-1-10 abgeleitet. Toughness performance of cold-formed structural hollow sections for low temperatures. European cold-formed hollow sections in general exhibit better toughness properties than required by EN 10219. However, limits in applying the toughness related rules for the choice of steel material in EN 1993-1-10 to cold-formed hollow sections still constitute barriers to free marketing. An assessment procedure has been developed which is based on toughness measurements and effective strains. Such plastic strains may occur in the bent areas associated with a toughness reduction. For the degradation of these toughness properties an appropriate temperature shift DTcf has been derived for both circular and rectangular hollow sections.
Source:	Stahlbau 81 (2012), No. 3
Page/s:	181-189
Language of Publication:	German

I would like to buy the article

You can download this article for 25 € as a PDF file (0.18 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 "Stahlbau" you can access this article via Wiley Online Library.

I would like to order "Stahlbau"

This article has been published in the journal "Stahlbau". 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.