An experimental study on static behavior of a GFRP bridge deck filled with a polyurethane foam

Goangseup Zi, Byeong Min Kim, Yoon Koog Hwang, Young Ho Lee

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

The static behavior of an orthotropic bridge deck made of glass fiber reinforced polymer (GFRP) and polyurethane foam was investigated experimentally. The bridge deck consisted of GFRP unit modules with rectangular holes filled with foam to improve the structural behavior in the transverse direction. It was found that, although the elastic modulus of the foam compared to the homogenized modulus of the GFRP deck was about the order of 10-3, the structural behaviors in the transverse direction such as the nominal strength, stiffness, etc. were greatly improved when the GFRP bridge deck was filled with foam. Because of the low mass density of the foam used in this study, the bridge deck was still light enough while the structural properties were improved significantly. Webs of the foam-filled modules did not significantly contribute to strength development of the deck. However, propagation of a crack initiated in a module was caught by the webs so as to limit the crack to the inside of that cell only. This made the load-displacement behavior of the foam-filled GFRP deck less brittle. The longitudinal response of the GFRP deck was improved with the foam. The strength was increased about 20% but the elastic modulus was not improved.

Original languageEnglish
Pages (from-to)257-268
Number of pages12
JournalComposite Structures
Volume82
Issue number2
DOIs
Publication statusPublished - 2008 Jan 1

Fingerprint

Bridge decks
Glass fibers
Polyurethanes
Foams
Polymers
Elastic moduli
Cracks
polyurethane foam
fiberglass
Structural properties
Stiffness

Keywords

  • Crack development
  • Foam
  • Foam-filled GFRP deck
  • Orthotropic bridge deck
  • Transverse direction

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ceramics and Composites

Cite this

An experimental study on static behavior of a GFRP bridge deck filled with a polyurethane foam. / Zi, Goangseup; Kim, Byeong Min; Hwang, Yoon Koog; Lee, Young Ho.

In: Composite Structures, Vol. 82, No. 2, 01.01.2008, p. 257-268.

Research output: Contribution to journalArticle

Zi, Goangseup ; Kim, Byeong Min ; Hwang, Yoon Koog ; Lee, Young Ho. / An experimental study on static behavior of a GFRP bridge deck filled with a polyurethane foam. In: Composite Structures. 2008 ; Vol. 82, No. 2. pp. 257-268.
@article{4f13859e339d40218c5b9671e496df9f,
title = "An experimental study on static behavior of a GFRP bridge deck filled with a polyurethane foam",
abstract = "The static behavior of an orthotropic bridge deck made of glass fiber reinforced polymer (GFRP) and polyurethane foam was investigated experimentally. The bridge deck consisted of GFRP unit modules with rectangular holes filled with foam to improve the structural behavior in the transverse direction. It was found that, although the elastic modulus of the foam compared to the homogenized modulus of the GFRP deck was about the order of 10-3, the structural behaviors in the transverse direction such as the nominal strength, stiffness, etc. were greatly improved when the GFRP bridge deck was filled with foam. Because of the low mass density of the foam used in this study, the bridge deck was still light enough while the structural properties were improved significantly. Webs of the foam-filled modules did not significantly contribute to strength development of the deck. However, propagation of a crack initiated in a module was caught by the webs so as to limit the crack to the inside of that cell only. This made the load-displacement behavior of the foam-filled GFRP deck less brittle. The longitudinal response of the GFRP deck was improved with the foam. The strength was increased about 20{\%} but the elastic modulus was not improved.",
keywords = "Crack development, Foam, Foam-filled GFRP deck, Orthotropic bridge deck, Transverse direction",
author = "Goangseup Zi and Kim, {Byeong Min} and Hwang, {Yoon Koog} and Lee, {Young Ho}",
year = "2008",
month = "1",
day = "1",
doi = "10.1016/j.compstruct.2007.01.010",
language = "English",
volume = "82",
pages = "257--268",
journal = "Composite Structures",
issn = "0263-8223",
publisher = "Elsevier BV",
number = "2",

}

TY - JOUR

T1 - An experimental study on static behavior of a GFRP bridge deck filled with a polyurethane foam

AU - Zi, Goangseup

AU - Kim, Byeong Min

AU - Hwang, Yoon Koog

AU - Lee, Young Ho

PY - 2008/1/1

Y1 - 2008/1/1

N2 - The static behavior of an orthotropic bridge deck made of glass fiber reinforced polymer (GFRP) and polyurethane foam was investigated experimentally. The bridge deck consisted of GFRP unit modules with rectangular holes filled with foam to improve the structural behavior in the transverse direction. It was found that, although the elastic modulus of the foam compared to the homogenized modulus of the GFRP deck was about the order of 10-3, the structural behaviors in the transverse direction such as the nominal strength, stiffness, etc. were greatly improved when the GFRP bridge deck was filled with foam. Because of the low mass density of the foam used in this study, the bridge deck was still light enough while the structural properties were improved significantly. Webs of the foam-filled modules did not significantly contribute to strength development of the deck. However, propagation of a crack initiated in a module was caught by the webs so as to limit the crack to the inside of that cell only. This made the load-displacement behavior of the foam-filled GFRP deck less brittle. The longitudinal response of the GFRP deck was improved with the foam. The strength was increased about 20% but the elastic modulus was not improved.

AB - The static behavior of an orthotropic bridge deck made of glass fiber reinforced polymer (GFRP) and polyurethane foam was investigated experimentally. The bridge deck consisted of GFRP unit modules with rectangular holes filled with foam to improve the structural behavior in the transverse direction. It was found that, although the elastic modulus of the foam compared to the homogenized modulus of the GFRP deck was about the order of 10-3, the structural behaviors in the transverse direction such as the nominal strength, stiffness, etc. were greatly improved when the GFRP bridge deck was filled with foam. Because of the low mass density of the foam used in this study, the bridge deck was still light enough while the structural properties were improved significantly. Webs of the foam-filled modules did not significantly contribute to strength development of the deck. However, propagation of a crack initiated in a module was caught by the webs so as to limit the crack to the inside of that cell only. This made the load-displacement behavior of the foam-filled GFRP deck less brittle. The longitudinal response of the GFRP deck was improved with the foam. The strength was increased about 20% but the elastic modulus was not improved.

KW - Crack development

KW - Foam

KW - Foam-filled GFRP deck

KW - Orthotropic bridge deck

KW - Transverse direction

UR - http://www.scopus.com/inward/record.url?scp=34548735371&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548735371&partnerID=8YFLogxK

U2 - 10.1016/j.compstruct.2007.01.010

DO - 10.1016/j.compstruct.2007.01.010

M3 - Article

AN - SCOPUS:34548735371

VL - 82

SP - 257

EP - 268

JO - Composite Structures

JF - Composite Structures

SN - 0263-8223

IS - 2

ER -