Preview

Author(s):	Han, Sun-Jin; Lee, Deuck Hang; Cho, Sang-Heum; Ka, Soon-Beum; Kim, Kang Su
Title:	Estimation of transfer lengths in precast pretensioned concrete members based on a modified thick-walled cylinder model
Abstract:	In pretensioned concrete members, prestress is introduced by the bond mechanism between prestressing tendon and surrounding concrete. Therefore, to secure the intended level of effective prestress in the tendon, sufficient bond stresses between the prestressing tendon and the concrete should be developed at release, for which a certain length from the end of the pretensioned concrete member is required, and this required distance is defined as the transfer length of the prestressing tendon. In this study, the prestress introduction mechanism between concrete and prestressing tendon was mathematically formulated based on thick-walled cylinder theory (TWCT). On this basis, an analytical model for estimating the transfer length was presented. The proposed model was also verified through comparison with test results collected from the literature. It was confirmed that the proposed model can accurately evaluate the effects of influential factors - such as diameter of prestressing tendon, compressive strength of concrete, concrete cover thickness and magnitude of initial prestress - on the transfer lengths of prestressing tendons in various types of pretensioned concrete member.
Source:	Structural Concrete 17 (2016), No. 1
Page/s:	52-62
Language of Publication:	English

I would like to buy the article

You can download this article for 25 € as a PDF file (1.66 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 "Structural Concrete" you can access this article via Wiley Online Library.

I would like to order "Structural Concrete"

This article has been published in the journal "Structural Concrete". 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.