Preview

Author(s):	Richter, Carl; Pak, Daniel; Rebelo, Carlos; Mohammadi, Mohammad Reza Shah
Title:
Abstract:	Höhere Ausbeute an Windenergie bedeutet höhere Windtürme. In einem vom Research Fund for Coal and Steel (RFCS) geförderten Projekt “Steel Hybrid Onshore Wind Towers Installed with Minimal Effort” (SHOWTIME) wurde sich mit der Frage beschäftigt, wie sehr große Nabenhöhen (> 180 m) wettbewerbsfähig in Stahlbauweise realisiert werden können. Als Lösung wird ein Stahlhybridturm mit einem unteren Teil in Gittermastbauweise und einem oberen Teil in Rohrvollwandbauweise angestrebt. Da Mobilkräne zur Erreichung solcher Nabenhöhen teuer und teilweise gar nicht verfügbar sind, wurde nach alternativen Möglichkeiten gesucht, den Turm zu errichten. So wurde ein integriertes Hebekonzept entwickelt, mit dem das obere Rohrteil am Übergangsstück per Litzenhub nach oben gehoben wird. Wichtig in diesem Zusammenhang ist auch die temporäre Verbindung der beiden Turmteile im Übergangsstück während des Hebevorgangs, da ein Verkippen des Rohrturms während des Hubs verhindert werden muss. In diesem Beitrag werden der innovative Hebevorgang und verschiedene Schritte zur Auslegung des Hebevorgangs und des Übergangsstücks sowie der durchgeführte Demonstrationsversuch vorgestellt. Integrated lifting process for hybrid lattice-tubular-towers for wind energy Higher exploitation of wind energy calls for higher wind towers. As part of the project “Steel Hybrid Onshore Wind Towers Installed with Minimal Effort” (SHOWTIME), funded by the Research Fund for Coal and Steel (RFCS), the question was addressed of how very high hub heights (> 180 m) can be realized competitively in steel construction. The preferred solution is a steel hybrid tower with a lower part constructed as a lattice tower and an upper part as a steel tubular tower. Since mobile cranes to reach such hub heights are very expensive and in some cases not available at all, the consortium was looking for alternative possibilities to erect the tower. Therefore, an integrated lifting concept has been developed, whereby the upper tubular section is lifted upwards at the transition piece by means of a strand lift system. The temporary connection of the two tower sections in the transition piece during the lifting process is also important in this context, as the tubular tower must be prevented from tilting during the lift. In this article the innovative lifting process and different steps for the design of the lifting process and the transition piece are presented as well as the demonstration experiment carried out.
Source:	Stahlbau 89 (2020), No. 6
Page/s:	531-540
Language of Publication:	German

I would like to buy the article

You can download this article for 25 € as a PDF file (1.54 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.