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Shear Capacity of Fiber-Reinforced Concrete Under Pure Shear

Ishtewi, Ahmad M.
http://rave.ohiolink.edu/etdc/view?acc_num=dayton1354725447

Abstract Details

2012, Master of Science (M.S.), University of Dayton, Civil Engineering.
Concrete members with steel fibers generally increase the shear and torsional strength of concrete; however, supplementing or replacing the stirrups with steel fibers is still not an accepted practice. Previous studies documented many tests of steel fiber-reinforced concrete (SFRC) beams with and without stirrups that failed in shear. The results indicated that the shear span-depth ratio adversely affects the shear capacity. As part of this experimental study, the picture frame fixture was used to test 20 SFRC samples under in-plane pure shear loading. Samples included hooked, crimped and arched-crimped steel fibers with varying volume fractions. Models for SFRC beam shear strength were reexamined using the current test data. The evaluation indicated that the model developed by Ashour provided the most accurate estimates to account for fibers efficiency in contribution to shear strength. Furthermore, the hooked steel fibers were shown to be more efficient than crimped fibers, and further increase of fiber volume fraction beyond 1 percent of crimped fibers did not result in significant improvements in the shear strength.
Elias A. Toubia, PhD (Advisor)
Thomas J. Whitney, PhD (Committee Member)
Steven Donaldson, PhD (Committee Member)
Riad S. Alakkad, MSc (Committee Member)
84 p.
Civil Engineering; Engineering
Pure Shear; Steel Fiber Reinforced Concrete; SFRC; FRC; Shear Strength; Torsional; Shear Capacity; Hooked Fibers; Crimped Fibers; Arched Crimped Fibers; Picture Frame

Recommended Citations

Citations

  • Ishtewi, A. M. (2012). Shear Capacity of Fiber-Reinforced Concrete Under Pure Shear [Master's thesis, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1354725447

    APA Style (7th edition)

  • Ishtewi, Ahmad. Shear Capacity of Fiber-Reinforced Concrete Under Pure Shear. 2012. University of Dayton, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton1354725447.

    MLA Style (8th edition)

  • Ishtewi, Ahmad. "Shear Capacity of Fiber-Reinforced Concrete Under Pure Shear." Master's thesis, University of Dayton, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1354725447

    Chicago Manual of Style (17th edition)

dayton1354725447
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© 2012, all rights reserved.
This open access ETD is published by University of Dayton and OhioLINK.