Influence of steel fibers and headed bars on the serviceability of high-strength concrete corbels

Jun Mo Yang, Joo Ha Lee, Young Soo Yoon, William D. Cook, Denis Mitchell

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Vertical loading tests are reported for six double-sided, high-strength concrete corbel specimens. The primary variables of the investigation were the percentage of steel fibers and the anchorage method of the main tension tie. The test results indicated that performance in terms of load-carrying capacities, stiffness, ductility, and crack width was improved, as the steel fibers were added and the percentage of steel fibers was increased. The corbel specimens with headed bars used as the main tension-tie reinforcement showed superior load-carrying capacities, stiffness, and ductility compared with the corbel specimens in which the main tension ties were anchored by welding to the transverse bars. From the test results, it is expected that the load-carrying capacities, serviceability, and durability of high-strength concrete corbels would be improved by using steel fibers and headed bars. Experimental results presented were also compared with various prediction models.

Original languageEnglish
Pages (from-to)123-129
Number of pages7
JournalJournal of Structural Engineering (United States)
Volume138
Issue number1
DOIs
Publication statusPublished - 2012 Jan 1

Keywords

  • Corbels
  • Headed bars
  • High-strength concrete
  • Serviceability
  • Steel fibers

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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