Case study: tests on two UHPC I-girders and analysis of flexural behaviour

Author(s): N. Cauberg, C. Tronci, J. Piérard, P. Van Itterbeeck, P. Van der Zee
Paper category: Symposium
Book title: RILEM-fib-AFGC International Symposium on Ultra-High Performance Fibre-Reinforced Concrete
Editor(s): F. Toutlemonde, J. Resplendino
Print ISBN: 978-2-35158-130-8
e-ISBN: 978-2-35158-131-5
Publisher: RILEM Publications S.A.R.L
Pages: 529 – 538
Total Pages: 10
Language: English

Abstract: 
This article describes the details of a case study on the flexural behaviour of two UHPC I-girders, which have been tested in collaboration with the precast company Ergon. The experimental phase focuses in a first step on material characterization with small scale test specimens, and the flexural behavior of full-scale tests with UHPC prestressed I-girders. A specific UHPC-type, with an average compressive strength of about 150 MPa and 1 % fibre mix volume, was used to fabricate two 7 m girders containing 9 prestressing strands. The analytical phase of this research analyzes the results from the experimental phase and compares with standard EN 1992-1-1 recommandations (Eurocode 2). The full scale test results are compared with the standard Eurocode 2 predictions. In a next step, the test results on small scale specimens are used to correct and extrapolate Eurocode’s material laws, in order to provide a more accurate prediction of the flexural behavior.

Online publication: 2014
Publication Type: full_text
Public price (Euros): 0.00