Evaluation of creep and shrinkage in a prestressed bridge using data from laboratory experiments and in-situ monitoring

Piotr Omenzetter*, Norisham Ibrahim

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

2 Citations (Scopus)

Abstract

The recent construction of the Tauranga Harbor Link (THL) bridge, a 12 span post-tensioned structure built using the incremental launch technique, created a research opportunity to evaluate performance of such structures via in-situ monitoring. The girder was instrumented with a number of strain gauges and displacement sensors that track slow deformations due to shrinkage, creep and temperature effects with the purpose to increase the knowledge about the influence of these factors on performance of prestressed bridges. These studies are being accompanied by laboratory shrinkage and creep tests on concrete samples in order to evaluate the accuracy of predictions offered by several empirical material models. This paper describes the THL bridge, the monitoring system and laboratory shrinkage and creep tests. Based on these laboratory results recommendations about the suitable empirical creep and shrinkage prediction models are made. Preliminary, qualitative analyses of in-situ monitoring data are also provided.

Original languageEnglish
Title of host publicationIncorporating Sustainable Practice in Mechanics of Structures and Materials
Subtitle of host publicationProceedings of the 21st Australian Conference on the Mechanics of Structures and Materials
EditorsSam Fragomeni, Srikanth Venkatesan
PublisherCRC Press
Pages185-190
Number of pages6
ISBN (Print)9780415616577, 0415616573
DOIs
Publication statusPublished - 18 Nov 2010
Event21st Australasian Conference on the Mechanics of Structures and Materials, ACMSM21 - Melbourne, VIC, United Kingdom
Duration: 7 Dec 201010 Dec 2010

Conference

Conference21st Australasian Conference on the Mechanics of Structures and Materials, ACMSM21
CountryUnited Kingdom
CityMelbourne, VIC
Period7/12/1010/12/10

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  • Cite this

    Omenzetter, P., & Ibrahim, N. (2010). Evaluation of creep and shrinkage in a prestressed bridge using data from laboratory experiments and in-situ monitoring. In S. Fragomeni, & S. Venkatesan (Eds.), Incorporating Sustainable Practice in Mechanics of Structures and Materials: Proceedings of the 21st Australian Conference on the Mechanics of Structures and Materials (pp. 185-190). CRC Press. https://doi.org/10.13140/2.1.1051.2963