Preview

Author(s):	Gubetini, Drilon; Mensinger, Martin
Title:
Abstract:	Für die Herleitung und Verifikation der Bemessungsgrundlagen für kaltgeformte, hochfeste Kran- und Gerüstbaurohre bis zu S960 liegen bisher kaum Versuchsergebnisse vor. In diesem Beitrag stellen die Autoren die Durchführung und Ergebnisse zentrischer Knickversuche an derartigen Rohren vor. Messungen von Eigenspannungen über das Sägeschnittverfahren an unverzinkten und verzinkten Rohren in S960 werden erläutert und diskutiert. Zudem werden die mittels 3D-Scan erfassten geometrischen Imperfektionen der Prüfkörper evaluiert und mit den Ansätzen der Europäischen Knicklinien verglichen. Die Verformungen der Prüfkörper in den Knickversuchen wurden dabei über digitale Bildkorrelation (DIC) erfasst. Die Effekte der Verzinkung und der Knickrichtung auf die Traglast werden hervorgehoben und erläutert. Experimental investigations on high-strength CHS for crane- and scaffolding construction So far, only a limited amount of experimental results is available for the derivation and verification of design principles for cold-formed, high-strength crane and scaffolding tubes up to S960. In this article, the authors present the conduction and results of buckling tests on centrally loaded scaffolding and crane tubes of steel grades up to S960. Measurements of residual stresses as structural imperfections using the sectioning method are discussed on ungalvanized and galvanized CHS in S960. Additionally, the geometric imperfections of the test specimens, which were captured by 3D scanning, are discussed and compared with the approaches of the European buckling curves. The deformations of the test specimens in the buckling tests were recorded using digital image correlation (DIC). The effects of galvanization and the buckling direction on the load-bearing capacity are highlighted and elucidated.
Source:	Stahlbau 92 (2023), No. 8
Page/s:	484-494
Language of Publication:	German

I would like to buy the article

You can download this article for 25 € as a PDF file (2.6 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.