Stochastic Modeling of Reinforced Concrete Structures Exposed to Chloride Attack

John Dalsgaard Sørensen; Christian Frier

Stochastic Modeling of Reinforced Concrete Structures Exposed to Chloride Attack

John Dalsgaard Sørensen, Christian Frier

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

Abstract

For many reinforced concrete structures corrosion of reinforcement is an important problem since it can result in expensive maintenance and repair actions. Further, a significant reduction of the load-bearing capacity can occur. One mode of corrosion initiation is that the chloride content around the reinforcement exceeds a critical threshold value. In the present paper a stochastic model is described by which the chloride content in a reinforced concrete structure can be estimated. The chloride ingress is modeled by a 2-dimensional diffusion process and the diffusion coefficient, surface chloride concentration and reinforcement cover depth are modeled by stochastic fields. The paper contains a description of the parameters to be included in a stochastic model and a proposal for the information needed to obtain values for the parameters in order to be ab le to perform reliability investigations. The distribution of the time to initiation of corrosion is estimated by simulation. As an example a bridge pier in a marine environment is considered.

Original language	English
Title of host publication	Life-Cycle Performance of Deterioration Structures - Assessment, Design and Management : Proceedings of the 3rd IABMAS workshop on life-cycle cost analysis and design of civil infrastructure systems and JCSS workshop on probabilistic modeling of deterioration processes in concrete structures
Editors	Dan M. Frangopol, Eugen Brühwiler, Michael H. Faber, Bryan Adey
Number of pages	8
Publisher	American Society of Civil Engineers
Publication date	2003
Pages	175-182
ISBN (Print)	0-7844-0707-X
Publication status	Published - 2003
Event	3rd IABMAS Workshop on Life-Cycle Cost Analysis and Design of Civil Infrastructure Systems and JCSS Workshop on Probabilistic Modeling of Deterioration Processes in Concrete Structures - Lausanne, Switzerland Duration: 24 Mar 2003 → 26 Mar 2003 Conference number: 3

Conference

Conference	3rd IABMAS Workshop on Life-Cycle Cost Analysis and Design of Civil Infrastructure Systems and JCSS Workshop on Probabilistic Modeling of Deterioration Processes in Concrete Structures
Number	3
Country/Territory	Switzerland
City	Lausanne
Period	24/03/2003 → 26/03/2003

Keywords

Stochastic Modelling
Concrete Structures
Chloride Attack

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Sørensen, J. D., & Frier, C. (2003). Stochastic Modeling of Reinforced Concrete Structures Exposed to Chloride Attack. In D. M. Frangopol, E. Brühwiler, M. H. Faber, & B. Adey (Eds.), Life-Cycle Performance of Deterioration Structures - Assessment, Design and Management: Proceedings of the 3rd IABMAS workshop on life-cycle cost analysis and design of civil infrastructure systems and JCSS workshop on probabilistic modeling of deterioration processes in concrete structures (pp. 175-182). American Society of Civil Engineers.

Sørensen, John Dalsgaard ; Frier, Christian. / Stochastic Modeling of Reinforced Concrete Structures Exposed to Chloride Attack. Life-Cycle Performance of Deterioration Structures - Assessment, Design and Management: Proceedings of the 3rd IABMAS workshop on life-cycle cost analysis and design of civil infrastructure systems and JCSS workshop on probabilistic modeling of deterioration processes in concrete structures. editor / Dan M. Frangopol ; Eugen Brühwiler ; Michael H. Faber ; Bryan Adey. American Society of Civil Engineers, 2003. pp. 175-182

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title = "Stochastic Modeling of Reinforced Concrete Structures Exposed to Chloride Attack",

abstract = "For many reinforced concrete structures corrosion of reinforcement is an important problem since it can result in expensive maintenance and repair actions. Further, a significant reduction of the load-bearing capacity can occur. One mode of corrosion initiation is that the chloride content around the reinforcement exceeds a critical threshold value. In the present paper a stochastic model is described by which the chloride content in a reinforced concrete structure can be estimated. The chloride ingress is modeled by a 2-dimensional diffusion process and the diffusion coefficient, surface chloride concentration and reinforcement cover depth are modeled by stochastic fields. The paper contains a description of the parameters to be included in a stochastic model and a proposal for the information needed to obtain values for the parameters in order to be ab le to perform reliability investigations. The distribution of the time to initiation of corrosion is estimated by simulation. As an example a bridge pier in a marine environment is considered. ",

keywords = "Stochastic Modelling, Concrete Structures, Chloride Attack, Stochastic Modelling, Concrete Structures, Chloride Attack",

author = "S{\o}rensen, {John Dalsgaard} and Christian Frier",

year = "2003",

language = "English",

isbn = "0-7844-0707-X",

pages = "175--182",

editor = "Frangopol, {Dan M.} and Eugen Br{\"u}hwiler and Faber, {Michael H.} and Bryan Adey",

booktitle = "Life-Cycle Performance of Deterioration Structures - Assessment, Design and Management",

publisher = "American Society of Civil Engineers",

address = "United States",

note = "3rd IABMAS Workshop on Life-Cycle Cost Analysis and Design of Civil Infrastructure Systems and JCSS Workshop on Probabilistic Modeling of Deterioration Processes in Concrete Structures, IABMAS/JCSS Workshop ; Conference date: 24-03-2003 Through 26-03-2003",

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Sørensen, JD & Frier, C 2003, Stochastic Modeling of Reinforced Concrete Structures Exposed to Chloride Attack. in DM Frangopol, E Brühwiler, MH Faber & B Adey (eds), Life-Cycle Performance of Deterioration Structures - Assessment, Design and Management: Proceedings of the 3rd IABMAS workshop on life-cycle cost analysis and design of civil infrastructure systems and JCSS workshop on probabilistic modeling of deterioration processes in concrete structures. American Society of Civil Engineers, pp. 175-182, 3rd IABMAS Workshop on Life-Cycle Cost Analysis and Design of Civil Infrastructure Systems and JCSS Workshop on Probabilistic Modeling of Deterioration Processes in Concrete Structures, Lausanne, Switzerland, 24/03/2003.

Stochastic Modeling of Reinforced Concrete Structures Exposed to Chloride Attack. / Sørensen, John Dalsgaard ; Frier, Christian.
Life-Cycle Performance of Deterioration Structures - Assessment, Design and Management: Proceedings of the 3rd IABMAS workshop on life-cycle cost analysis and design of civil infrastructure systems and JCSS workshop on probabilistic modeling of deterioration processes in concrete structures. ed. / Dan M. Frangopol; Eugen Brühwiler; Michael H. Faber; Bryan Adey. American Society of Civil Engineers, 2003. p. 175-182.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Stochastic Modeling of Reinforced Concrete Structures Exposed to Chloride Attack

AU - Sørensen, John Dalsgaard

AU - Frier, Christian

N1 - Conference code: 3

PY - 2003

Y1 - 2003

N2 - For many reinforced concrete structures corrosion of reinforcement is an important problem since it can result in expensive maintenance and repair actions. Further, a significant reduction of the load-bearing capacity can occur. One mode of corrosion initiation is that the chloride content around the reinforcement exceeds a critical threshold value. In the present paper a stochastic model is described by which the chloride content in a reinforced concrete structure can be estimated. The chloride ingress is modeled by a 2-dimensional diffusion process and the diffusion coefficient, surface chloride concentration and reinforcement cover depth are modeled by stochastic fields. The paper contains a description of the parameters to be included in a stochastic model and a proposal for the information needed to obtain values for the parameters in order to be ab le to perform reliability investigations. The distribution of the time to initiation of corrosion is estimated by simulation. As an example a bridge pier in a marine environment is considered.

AB - For many reinforced concrete structures corrosion of reinforcement is an important problem since it can result in expensive maintenance and repair actions. Further, a significant reduction of the load-bearing capacity can occur. One mode of corrosion initiation is that the chloride content around the reinforcement exceeds a critical threshold value. In the present paper a stochastic model is described by which the chloride content in a reinforced concrete structure can be estimated. The chloride ingress is modeled by a 2-dimensional diffusion process and the diffusion coefficient, surface chloride concentration and reinforcement cover depth are modeled by stochastic fields. The paper contains a description of the parameters to be included in a stochastic model and a proposal for the information needed to obtain values for the parameters in order to be ab le to perform reliability investigations. The distribution of the time to initiation of corrosion is estimated by simulation. As an example a bridge pier in a marine environment is considered.

KW - Stochastic Modelling

KW - Concrete Structures

KW - Chloride Attack

KW - Stochastic Modelling

KW - Concrete Structures

KW - Chloride Attack

M3 - Article in proceeding

SN - 0-7844-0707-X

SP - 175

EP - 182

BT - Life-Cycle Performance of Deterioration Structures - Assessment, Design and Management

A2 - Frangopol, Dan M.

A2 - Brühwiler, Eugen

A2 - Faber, Michael H.

A2 - Adey, Bryan

PB - American Society of Civil Engineers

T2 - 3rd IABMAS Workshop on Life-Cycle Cost Analysis and Design of Civil Infrastructure Systems and JCSS Workshop on Probabilistic Modeling of Deterioration Processes in Concrete Structures

Y2 - 24 March 2003 through 26 March 2003

ER -

Sørensen JD , Frier C. Stochastic Modeling of Reinforced Concrete Structures Exposed to Chloride Attack. In Frangopol DM, Brühwiler E, Faber MH, Adey B, editors, Life-Cycle Performance of Deterioration Structures - Assessment, Design and Management: Proceedings of the 3rd IABMAS workshop on life-cycle cost analysis and design of civil infrastructure systems and JCSS workshop on probabilistic modeling of deterioration processes in concrete structures. American Society of Civil Engineers. 2003. p. 175-182

Stochastic Modeling of Reinforced Concrete Structures Exposed to Chloride Attack

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