Field study on the development of concrete creep during stressing

Title: Field study on the development of concrete creep during stressing
Author(s): J. Kang, J. Yu
Paper category : conference
Book title: International Conference on Advances in Concrete and Structures
Editor(s): Ying-shu Yuan, Surendra P. Shah and Heng-lin Lü
Print-ISBN: 2-912143-41-1
e-ISBN: 2351580176
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 488 - 494
Total Pages: 7
Nb references: 9
Language: English

Abstract: The development of concrete creep during stressing period are investigated based on the field instrumentation measurements by dividing the total stressing period into several stressing time intervals and staying time intervals and recording the strain variations in each time interval. It is found that, for the investigated structure with the total stressing period of 187.1h, concrete creep developed during stressing period is relatively large and can't be negligible, the percentage of concrete creep are 26.4% of total strain and 35.8% of elastic strain respectively. Concrete creep is linearly related to the existing stress s and the loading time t. A simple formula is derived for estimating concrete creep developed during stressing period with a satisfied accuracy. Conclusions and recommendations are drawn for analyzing prestress effects of practical structures that need several days to complete the stressing.

Online publication: 2003-08-10
Publication type : full_text
Public price (Euros): 0.00