Preview

Author(s):	Weber, Felix; Distl, Hans
Title:
Abstract:	Schrägseile neigen wegen ihrer kleinen Dämpfung von 0,1%-0,15% zu windinduzierten Schwingungen. Da sich Windbedingungen ändern, sind sowohl Schwingamplitude als auch Schwingfrequenz unbekannt. Daher muss ein Seildämpfungssystem die Seile unabhängig von deren Amplitude und Frequenz gleich effizient bedämpfen. Dieser Aufsatz zeigt, wie diese Anforderung mittels echtzeitgeregelter magnetorheologischer Dämpfer erfüllt werden kann. Die Effizienz des adaptiven Seildämpfungssystems ist experimentell validiert und dessen Umsetzung auf den weltgrößten Schrägseilbrücken, der Sutong-Brücke in China und der Russky-Brücke in Russland, beschrieben. Stay Cable Damping by Real-Time Controlled MR Dampers Stay cables are prone to wind-induced vibrations due to their low inherent damping of 0,1%-0,15%. Since wind conditions vary over time, vibration amplitudes and frequencies are unknown. Consequently, cable damping systems must generate amplitude and frequency independent cable damping. It is described how this requirement can be fulfilled by real-time controlled magnetorheological dampers. The efficiency of the adaptive cable damping system is experimentally validated and its implementation on the world largest stay cable bridges, the Sutong Bridge in China and the Russky Bridge in Russia, is described.
Source:	Beton- und Stahlbetonbau 109 (2014), No. 4
Page/s:	239-247
Language of Publication:	German

I would like to buy the article

You can download this article for 25 € as a PDF file (1.75 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.