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Performance of Fiber Reinforced Materials: Historic Perspective and Glance in the Future Read chapter Read first chapter

2018 | Supplement | Chapter

Effect of Steel Fiber on the Behavior of Circular Steel Tube Confined UHPC Columns Under Axial Loading

Authors : An Le Hoang, Ekkehard Fehling

Published in: Strain-Hardening Cement-Based Composites

Publisher: Springer Netherlands

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Abstract

This paper is aimed at presenting an experimental investigation on a total of 12 circular ultra high performance (UHPC) concrete filled steel tube short and intermediate columns under axial loading on only the concrete core. The influence of steel fibers with 1% and 2% by volume was examined by means of some performance indices including the strength and strain enhancement index (SI and SE), the ductility index (DI) and the strength ratio (SR). It was found that the use of steel tube as a confinement method for UHPC columns provides a significant improvement in both terms of the strength and the ductility, thereby restricting the extremely brittle failure of UHPC. In addition, there is no noticeable influence of steel fibers on the strength and ductility of test columns. However, the presence of steel fibers affects to the failure mode and slightly increases the ductility of the intermediate columns.

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previous chapter Impact Performance of Low-Fiber Content HPFRCC: From Material to Structural Behavior
next chapter Comparative Flexural and Tensile Behaviours of Ultra-High Performance Fibre Reinforced Concrete with Different Steel Fibres
Literature
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Schneider, H.: Zum Tragverhalten kurzer, umschnürter, kreisförmiger, Druckglieder aus ungefasertem UHFB. Doctoral Dissertation, 2006, University of Leipzig (2006). (In German)
Tue, N.V., Schneider, H., Simsch, G., Schmidt, D.: Bearing capacity of stub columns made of NSC, HSC and UHPC confined by a Steel Tube. In: Proceeding of 1st International Symposium on Ultra High Performance Concrete, pp. 339–350. Kassel university press, Kassel, March 2004
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Metadata
Title
Effect of Steel Fiber on the Behavior of Circular Steel Tube Confined UHPC Columns Under Axial Loading
Authors
An Le Hoang
Ekkehard Fehling
Copyright Year
2018
Publisher
Springer Netherlands
Book
Strain-Hardening Cement-Based Composites

Print ISBN: 978-94-024-1193-5

Electronic ISBN: 978-94-024-1194-2

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-94-024-1194-2_56