Shear behavior of steel reinforced ultra high performance concrete members with hybrid fibers

M. Bermudez, C. C. Hung

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

3 Citations (Scopus)

Abstract

Current design codes require a dense array of steel reinforcement for shear-critical structural elements in earthquake-resistant structures, such as columns, walls, coupling beams, and beam-column joints. However, this leads to congested reinforcement in such elements during construction, which could cause extensively prolonged construction and reduced construction quality. This paper aims to investigate the potential of utilizing Ultra High Performance Concrete with hybrid fibers to reduce shear reinforcement in shear-critical structural elements. A series of beams reinforced with longitudinal steel bars and various combinations of hybrid fibers were tested in a four-point loading setup. Two different shear spans to depth ratio were used to evaluate the effect of the hybridization in the shear response of the member. The test results showed that the presence of hybrid fibers enhanced the shear cracking strength, ultimate shear strength, and crack width controlled ability of the specimens compared to the monofiber beams. The results also indicated that the hybrid specimen with a less volume fraction of fibers could delay the appearance of cracking in the member.

Original languageEnglish
Title of host publicationEASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
EditorsChien Ming Wang, Sritawat Kitipornchai, Vinh Dao
PublisherSpringer Science and Business Media Deutschland GmbH
Pages1645-1654
Number of pages10
ISBN (Print)9789811580789
DOIs
Publication statusPublished - 2021
Event16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019 - Brisbane, Australia
Duration: 2019 Dec 32019 Dec 6

Publication series

NameLecture Notes in Civil Engineering
Volume101
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
Country/TerritoryAustralia
CityBrisbane
Period19-12-0319-12-06

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

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