Behavior of FRP confined ultrahigh-strength concrete columns under axial compression: An experimental study

S. Jiang, D. Fernando, J. C.M. Ho, M. Heitzmann

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ultra High-Strength Concrete (UHSC) have become increasingly popular within the civil engineering community. While many studies exist on structural members made using UHSC, research works on the behavior of Fiber Reinforced Polymer (FRP)-confined UHSC columns are scarce. Existing theoretical models for predicting the behavior of FRP-confined normal strength and high strength concrete found to be inadequate for FRP-confined UHSC with silica fume. Due to inconstancies of existing limited experimental results on FRP-confined UHSC columns, effect of silica fume cannot be clearly identified. This paper presents an experimental study on the compressive performance of twelve FRP-confined UHSC columns under axial compression. The variables investigated include unconfined concrete strength (two different mix designs with different silica fume content) and number of GFRP plies. While GFRP confinement significantly enhance both compressive strength and ultimate strain, effectiveness of GFRP confinement was found to be largely effected by the concrete mix design.

Original languageEnglish
Title of host publicationMechanics of Structures and Materials
Subtitle of host publicationAdvancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016
EditorsHong Hao, Chunwei Zhang
PublisherCRC Press/Balkem
Pages1737-1744
Number of pages8
ISBN (Print)9781138029934
Publication statusPublished - 2017
Event24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016 - Perth, Australia
Duration: 6 Dec 20169 Dec 2016

Conference

Conference24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016
Country/TerritoryAustralia
CityPerth
Period6/12/169/12/16

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