Publication: Deformation capacity and shear strength of fiber-reinforced cement composite flexural members subjected to displacement reversals
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Issued Date
2007-02-28
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ISSN
07339445
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2-s2.0-33847239570
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Structural Engineering. Vol.133, No.3 (2007), 421-431
Suggested Citation
Gustavo J. Parra-Montesinos, Praveen Chompreda Deformation capacity and shear strength of fiber-reinforced cement composite flexural members subjected to displacement reversals. Journal of Structural Engineering. Vol.133, No.3 (2007), 421-431. doi:10.1061/(ASCE)0733-9445(2007)133:3(421) Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/24451
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Title
Deformation capacity and shear strength of fiber-reinforced cement composite flexural members subjected to displacement reversals
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Abstract
The behavior of fiber-reinforced cement composite (FRCC) flexural members under large displacement reversals was experimentally evaluated. Emphasis was placed on estimating the displacement capacity and shear strength of members constructed with strain-hardening FRCC materials. Two types of fibers were used: Ultrahigh molecular weight polyethylene fibers and steel hooked fibers in volume fractions ranging between 1.0 and 2.0%. The primary experimental variables were: (1) fiber type and volume fraction; (2) type of cement-based matrix (concrete or mortar); (3) average shear stress demand at flexural yielding; and (4) shear resistance provided through hoops versus total shear demand. All specimens constructed with a strain-hardening FRCC, with or without web reinforcement, exhibited drift capacities of at least 4.0%. A shear stress level of 0.30 fc′ [MPa] represented a lower bound for which no shear failure occurred in the strain-hardening FRCC test specimens, regardless of the member inelastic rotation demand. In addition, buckling of longitudinal reinforcement in the strain-hardening FRCC members without web reinforcement was not observed up to plastic hinge rotations of 4.0%. © 2007 ASCE.