Preview

Author(s):
Title:	Large-scale testing facility for cyclic axially loaded piles
Abstract:	Offshore piles have to withstand predominantly cyclic axial loads when they are installed in multi-pile configurations, as in jacket foundations. The dimensions of the pile are governed by both the internal capacity and the fatigue behaviour of the steel cross-section as well as by its external capacity in the pile-soil interaction. Owing to the large numbers of piled foundations required for current and future offshore wind farms, there is an urgent need to optimize the dimensions and related costs of single piles. With regard to the pile capacity, two major topics of research are the determination of possible capacity gains due to pile ageing effects and proper consideration of cyclic degradation. In order to investigate both effects, a large-scale testing facility has been constructed at the BAM TTS site in Horstwalde near Berlin. This open-air facility allows large tubular driven piles to be loaded cyclically in both tension and compression while studying the ageing effects by introducing delays between the testing campaigns. First results already show a moderate increase in pile capacity over time. Concerning the anticipated capacity degradation of cyclically loaded piles, preliminary results show an unexpected behaviour. Additional tests are currently being conducted for further clarification.
Source:	Steel Construction 6 (2013), No. 3
Page/s:	200-206
Language of Publication:	English

I would like to buy the article

You can download this article for 25 € as a PDF file (0.91 MB).
The PDF file can be read, printed and saved.
Duplication and forwarding to third parties is not allowed.

To enquire about the cost of the contribution and to order the PDF, please send us an e-mail to marketing@ernst-und-sohn.de. You can also use the following button.

make a request

I am an online subscriber

As an online subscriber of the journal "Steel Construction" you can access this article via Wiley Online Library.

I would like to order "Steel Construction"

This article has been published in the journal "Steel Construction". 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.