Analytical Model for Seismic Performance of Hollow RC Bridge Piers Considering Elongation Reduction in Reinforcement Deteriorated by Aging and Other Factors
Abstract This study presents an analytical technique for understanding the seismic behavior and evaluating the seismic performance of hollow RC bridge piers deteriorated by aging and other factors. Deterioration caused by de-icing agents and carbonation has reduced the lifespan of bridge structures,...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-05-01
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| Series: | International Journal of Concrete Structures and Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40069-025-00766-4 |
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| author | Tae-Hoon Kim Ick-Hyun Kim Hyun Mock Shin |
| author_facet | Tae-Hoon Kim Ick-Hyun Kim Hyun Mock Shin |
| author_sort | Tae-Hoon Kim |
| collection | DOAJ |
| description | Abstract This study presents an analytical technique for understanding the seismic behavior and evaluating the seismic performance of hollow RC bridge piers deteriorated by aging and other factors. Deterioration caused by de-icing agents and carbonation has reduced the lifespan of bridge structures, thus necessitating frequent maintenance and increasing economic and social costs. A validated nonlinear finite element analysis program RCAHEST (Reinforced Concrete Analysis in Higher Evaluation System Technology) was enhanced with a deterioration model and an extended damage index that incorporates elongation reduction in reinforcing bars. The modified nonlinear material model accounts for the reduction of cross-sectional area of reinforcement and the change of bond strength at the concrete-to-steel interface caused by corrosion. Extended damage indices considering elongation reduction of reinforcing bars aim to provide a means of quantifying numerically the damage in deteriorated hollow RC bridge piers under earthquake loading. This approach allowed for a reliable parametric study of deteriorated hollow RC bridge piers, resulting in accurate predictions of performance degradation and the reversal phenomenon of the damage index due to drift ratios. The proposed nonlinear analysis method was validated to properly account for key design variables, including corrosion level, yield strength and ultimate strength of the reinforcing bars, and compressive strength of the concrete. Additionally, the newly extended damage index, which incorporates both the deterioration model and elongation reduction in reinforcing bars affecting behavior, effectively evaluates seismic performance. |
| format | Article |
| id | doaj-art-e0c009718d6447d294bf10c857f0f7e9 |
| institution | Kabale University |
| issn | 2234-1315 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Concrete Structures and Materials |
| spelling | doaj-art-e0c009718d6447d294bf10c857f0f7e92025-08-20T03:52:23ZengSpringerOpenInternational Journal of Concrete Structures and Materials2234-13152025-05-0119111910.1186/s40069-025-00766-4Analytical Model for Seismic Performance of Hollow RC Bridge Piers Considering Elongation Reduction in Reinforcement Deteriorated by Aging and Other FactorsTae-Hoon Kim0Ick-Hyun Kim1Hyun Mock Shin2Advanced Railroad Civil Engineering Division, Korea Railroad Research InstituteDepartment of Civil and Environmental Engineering, University of UlsanSchool of Civil, Architectural Engineering, and Landscape Architecture, Sungkyunkwan UniversityAbstract This study presents an analytical technique for understanding the seismic behavior and evaluating the seismic performance of hollow RC bridge piers deteriorated by aging and other factors. Deterioration caused by de-icing agents and carbonation has reduced the lifespan of bridge structures, thus necessitating frequent maintenance and increasing economic and social costs. A validated nonlinear finite element analysis program RCAHEST (Reinforced Concrete Analysis in Higher Evaluation System Technology) was enhanced with a deterioration model and an extended damage index that incorporates elongation reduction in reinforcing bars. The modified nonlinear material model accounts for the reduction of cross-sectional area of reinforcement and the change of bond strength at the concrete-to-steel interface caused by corrosion. Extended damage indices considering elongation reduction of reinforcing bars aim to provide a means of quantifying numerically the damage in deteriorated hollow RC bridge piers under earthquake loading. This approach allowed for a reliable parametric study of deteriorated hollow RC bridge piers, resulting in accurate predictions of performance degradation and the reversal phenomenon of the damage index due to drift ratios. The proposed nonlinear analysis method was validated to properly account for key design variables, including corrosion level, yield strength and ultimate strength of the reinforcing bars, and compressive strength of the concrete. Additionally, the newly extended damage index, which incorporates both the deterioration model and elongation reduction in reinforcing bars affecting behavior, effectively evaluates seismic performance.https://doi.org/10.1186/s40069-025-00766-4Seismic performanceHollow RC bridge piersDeterioratedDamage indexElongation reduction |
| spellingShingle | Tae-Hoon Kim Ick-Hyun Kim Hyun Mock Shin Analytical Model for Seismic Performance of Hollow RC Bridge Piers Considering Elongation Reduction in Reinforcement Deteriorated by Aging and Other Factors International Journal of Concrete Structures and Materials Seismic performance Hollow RC bridge piers Deteriorated Damage index Elongation reduction |
| title | Analytical Model for Seismic Performance of Hollow RC Bridge Piers Considering Elongation Reduction in Reinforcement Deteriorated by Aging and Other Factors |
| title_full | Analytical Model for Seismic Performance of Hollow RC Bridge Piers Considering Elongation Reduction in Reinforcement Deteriorated by Aging and Other Factors |
| title_fullStr | Analytical Model for Seismic Performance of Hollow RC Bridge Piers Considering Elongation Reduction in Reinforcement Deteriorated by Aging and Other Factors |
| title_full_unstemmed | Analytical Model for Seismic Performance of Hollow RC Bridge Piers Considering Elongation Reduction in Reinforcement Deteriorated by Aging and Other Factors |
| title_short | Analytical Model for Seismic Performance of Hollow RC Bridge Piers Considering Elongation Reduction in Reinforcement Deteriorated by Aging and Other Factors |
| title_sort | analytical model for seismic performance of hollow rc bridge piers considering elongation reduction in reinforcement deteriorated by aging and other factors |
| topic | Seismic performance Hollow RC bridge piers Deteriorated Damage index Elongation reduction |
| url | https://doi.org/10.1186/s40069-025-00766-4 |
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