A Recalibration of the Crack Width Bond-Dependent Coefficient for GFRP-Reinforced Concrete

Carol Shield, Vicki Brown, Charles E. Bakis, Shawn Gross

Research output: Contribution to journalArticle

Abstract

Serviceability requirements can often control the design of glass fiber-reinforced polymer (GFRP)-reinforced concrete flexural members due to the lower stiffness of GFRP than of steel. ACI Committee 440 crack control provisions for GFRP-reinforced concrete mimic those from ACI 318 for steel-reinforced concrete, but with the addition of a bond-dependent coefficient, kb, to account for differences in bond between GFRP and concrete from steel and concrete. The recommended value for the bond-dependent coefficient in ACI 440.1R-15 is 1.4. This value is largely based on one experimental study, with one type of GFRP bar. Since that study, many more experiments have been performed to examine crack widths in GFRP-reinforced concrete. A database of these experiments that satisfy a rigorous set of criteria to ensure valid experimental results was created from the literature and used to recalibrate the bond-dependent coefficient. A value of 1.2 is recommended for all bars that include a sand coating in the surface enhancement. A value of 1.4 is recommended for all other bars.

Original languageEnglish (US)
Article number04019020
JournalJournal of Composites for Construction
Volume23
Issue number4
DOIs
StatePublished - Aug 1 2019

Fingerprint

Glass fibers
Reinforced concrete
Polymers
Cracks
Steel
Concretes
fiberglass
Sand
Experiments
Stiffness
Coatings

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{f1d0fd7289374d0c917fce0dcaefecb9,
title = "A Recalibration of the Crack Width Bond-Dependent Coefficient for GFRP-Reinforced Concrete",
abstract = "Serviceability requirements can often control the design of glass fiber-reinforced polymer (GFRP)-reinforced concrete flexural members due to the lower stiffness of GFRP than of steel. ACI Committee 440 crack control provisions for GFRP-reinforced concrete mimic those from ACI 318 for steel-reinforced concrete, but with the addition of a bond-dependent coefficient, kb, to account for differences in bond between GFRP and concrete from steel and concrete. The recommended value for the bond-dependent coefficient in ACI 440.1R-15 is 1.4. This value is largely based on one experimental study, with one type of GFRP bar. Since that study, many more experiments have been performed to examine crack widths in GFRP-reinforced concrete. A database of these experiments that satisfy a rigorous set of criteria to ensure valid experimental results was created from the literature and used to recalibrate the bond-dependent coefficient. A value of 1.2 is recommended for all bars that include a sand coating in the surface enhancement. A value of 1.4 is recommended for all other bars.",
author = "Carol Shield and Vicki Brown and Bakis, {Charles E.} and Shawn Gross",
year = "2019",
month = "8",
day = "1",
doi = "10.1061/(ASCE)CC.1943-5614.0000978",
language = "English (US)",
volume = "23",
journal = "Journal of Composites for Construction",
issn = "1090-0268",
publisher = "American Society of Civil Engineers (ASCE)",
number = "4",

}

A Recalibration of the Crack Width Bond-Dependent Coefficient for GFRP-Reinforced Concrete. / Shield, Carol; Brown, Vicki; Bakis, Charles E.; Gross, Shawn.

In: Journal of Composites for Construction, Vol. 23, No. 4, 04019020, 01.08.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A Recalibration of the Crack Width Bond-Dependent Coefficient for GFRP-Reinforced Concrete

AU - Shield, Carol

AU - Brown, Vicki

AU - Bakis, Charles E.

AU - Gross, Shawn

PY - 2019/8/1

Y1 - 2019/8/1

N2 - Serviceability requirements can often control the design of glass fiber-reinforced polymer (GFRP)-reinforced concrete flexural members due to the lower stiffness of GFRP than of steel. ACI Committee 440 crack control provisions for GFRP-reinforced concrete mimic those from ACI 318 for steel-reinforced concrete, but with the addition of a bond-dependent coefficient, kb, to account for differences in bond between GFRP and concrete from steel and concrete. The recommended value for the bond-dependent coefficient in ACI 440.1R-15 is 1.4. This value is largely based on one experimental study, with one type of GFRP bar. Since that study, many more experiments have been performed to examine crack widths in GFRP-reinforced concrete. A database of these experiments that satisfy a rigorous set of criteria to ensure valid experimental results was created from the literature and used to recalibrate the bond-dependent coefficient. A value of 1.2 is recommended for all bars that include a sand coating in the surface enhancement. A value of 1.4 is recommended for all other bars.

AB - Serviceability requirements can often control the design of glass fiber-reinforced polymer (GFRP)-reinforced concrete flexural members due to the lower stiffness of GFRP than of steel. ACI Committee 440 crack control provisions for GFRP-reinforced concrete mimic those from ACI 318 for steel-reinforced concrete, but with the addition of a bond-dependent coefficient, kb, to account for differences in bond between GFRP and concrete from steel and concrete. The recommended value for the bond-dependent coefficient in ACI 440.1R-15 is 1.4. This value is largely based on one experimental study, with one type of GFRP bar. Since that study, many more experiments have been performed to examine crack widths in GFRP-reinforced concrete. A database of these experiments that satisfy a rigorous set of criteria to ensure valid experimental results was created from the literature and used to recalibrate the bond-dependent coefficient. A value of 1.2 is recommended for all bars that include a sand coating in the surface enhancement. A value of 1.4 is recommended for all other bars.

UR - http://www.scopus.com/inward/record.url?scp=85065239159&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85065239159&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)CC.1943-5614.0000978

DO - 10.1061/(ASCE)CC.1943-5614.0000978

M3 - Article

VL - 23

JO - Journal of Composites for Construction

JF - Journal of Composites for Construction

SN - 1090-0268

IS - 4

M1 - 04019020

ER -