Simulation of corroded RC structures using a three-dimensional irregular lattice model

Kunhwi Kim, John E. Bolander, Yun Mook Lim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Deteriorative effects of steel corrosion on the structural response of reinforced concrete are simulated for varying degrees of corrosion. The simulation approach is based on a three-dimensional irregular lattice model of the bulk concrete, in which fracture is modeled using a crack band approach that conserves fracture energy. Frame elements and bond link elements represent the reinforcing steel and its interface with the concrete, respectively. Polylinear stress-slip properties of the link elements are determined, for several degrees of corrosion, through comparisons with direct pullout tests reported in the literature. The link properties are then used for the lattice modeling of reinforced concrete beams with similar degrees of corrosion of the main reinforcing steel. The model is successful in simulating several important effects of steel corrosion, including increased deflections, changes in flexural cracking behavior, and reduced yield load of the beam specimens.

Original languageEnglish
Pages (from-to)645-662
Number of pages18
JournalStructural Engineering and Mechanics
Volume41
Issue number5
DOIs
Publication statusPublished - 2012 Mar 10

Fingerprint

Steel corrosion
Corrosion
Reinforced concrete
Concretes
Fracture energy
Steel
Cracks

All Science Journal Classification (ASJC) codes

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

Cite this

@article{f3a99b2ad3764e45993d8d7475c7374a,
title = "Simulation of corroded RC structures using a three-dimensional irregular lattice model",
abstract = "Deteriorative effects of steel corrosion on the structural response of reinforced concrete are simulated for varying degrees of corrosion. The simulation approach is based on a three-dimensional irregular lattice model of the bulk concrete, in which fracture is modeled using a crack band approach that conserves fracture energy. Frame elements and bond link elements represent the reinforcing steel and its interface with the concrete, respectively. Polylinear stress-slip properties of the link elements are determined, for several degrees of corrosion, through comparisons with direct pullout tests reported in the literature. The link properties are then used for the lattice modeling of reinforced concrete beams with similar degrees of corrosion of the main reinforcing steel. The model is successful in simulating several important effects of steel corrosion, including increased deflections, changes in flexural cracking behavior, and reduced yield load of the beam specimens.",
author = "Kunhwi Kim and Bolander, {John E.} and Lim, {Yun Mook}",
year = "2012",
month = "3",
day = "10",
doi = "10.12989/sem.2012.41.5.645",
language = "English",
volume = "41",
pages = "645--662",
journal = "Structural Engineering and Mechanics",
issn = "1225-4568",
publisher = "Techno Press",
number = "5",

}

Simulation of corroded RC structures using a three-dimensional irregular lattice model. / Kim, Kunhwi; Bolander, John E.; Lim, Yun Mook.

In: Structural Engineering and Mechanics, Vol. 41, No. 5, 10.03.2012, p. 645-662.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Simulation of corroded RC structures using a three-dimensional irregular lattice model

AU - Kim, Kunhwi

AU - Bolander, John E.

AU - Lim, Yun Mook

PY - 2012/3/10

Y1 - 2012/3/10

N2 - Deteriorative effects of steel corrosion on the structural response of reinforced concrete are simulated for varying degrees of corrosion. The simulation approach is based on a three-dimensional irregular lattice model of the bulk concrete, in which fracture is modeled using a crack band approach that conserves fracture energy. Frame elements and bond link elements represent the reinforcing steel and its interface with the concrete, respectively. Polylinear stress-slip properties of the link elements are determined, for several degrees of corrosion, through comparisons with direct pullout tests reported in the literature. The link properties are then used for the lattice modeling of reinforced concrete beams with similar degrees of corrosion of the main reinforcing steel. The model is successful in simulating several important effects of steel corrosion, including increased deflections, changes in flexural cracking behavior, and reduced yield load of the beam specimens.

AB - Deteriorative effects of steel corrosion on the structural response of reinforced concrete are simulated for varying degrees of corrosion. The simulation approach is based on a three-dimensional irregular lattice model of the bulk concrete, in which fracture is modeled using a crack band approach that conserves fracture energy. Frame elements and bond link elements represent the reinforcing steel and its interface with the concrete, respectively. Polylinear stress-slip properties of the link elements are determined, for several degrees of corrosion, through comparisons with direct pullout tests reported in the literature. The link properties are then used for the lattice modeling of reinforced concrete beams with similar degrees of corrosion of the main reinforcing steel. The model is successful in simulating several important effects of steel corrosion, including increased deflections, changes in flexural cracking behavior, and reduced yield load of the beam specimens.

UR - http://www.scopus.com/inward/record.url?scp=84859098848&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859098848&partnerID=8YFLogxK

U2 - 10.12989/sem.2012.41.5.645

DO - 10.12989/sem.2012.41.5.645

M3 - Article

AN - SCOPUS:84859098848

VL - 41

SP - 645

EP - 662

JO - Structural Engineering and Mechanics

JF - Structural Engineering and Mechanics

SN - 1225-4568

IS - 5

ER -