Sensing-Based Simulation of Bending Moments in Reinforced Concrete Columns.
Saved in:
| Title: | Sensing-Based Simulation of Bending Moments in Reinforced Concrete Columns. |
|---|---|
| Authors: | Iranmanesh, Amir1, Panahi, Mahsa2, Ansari, Farhad3 |
| Source: | ACI Structural Journal. May2026, Vol. 123 Issue 3, p81-94. 14p. |
| Subjects: | Bending moment, Concrete columns, Deformations (Mechanics), Fiber Bragg gratings, Structural health monitoring, Ground motion, Damage models |
| Abstract: | Integrating real-time sensor data with physics-based models enhances the accuracy and efficiency of structural simulation and prognosis. In this study, a sensing-based simulation method is introduced to compute bending moments in reinforced concrete bridge columns subjected to seismic motions, based on the measured strains continuously fed into plasticity models. The experimental program included hybrid testing of scaled reinforced concrete bridges under consecutive seismic events. The experimental columns were instrumented with embedded as well as surface-adhered fiber-optic Bragg grating (FBG) sensors for real-time monitoring of strains, reflecting degradation of the columns during the formation of damage. The fundamental assumption of strain compatibility in reinforced concrete members was investigated for the successive progression of damage in the cross sections of the columns. The stress distributions within the concrete core and cover were computed through the confined and unconfined concrete stress-strain relations for loading, unloading, and reloading scenarios. The bending moments in the cross section were computed and compared with the corresponding experimental values calculated based on direct measurements of forces. The results from this study revealed that the cross-sectional strains exhibit three primary features during the seismic events that need to be considered for the accurate calculation of bending moments. Computation of the bending moments requires consideration of the shifts in cyclic reference, post-event residual strains, and real steel strains. Using these features, the computed bending moments during the column tests mimicked the experimental results based on the measured seismic forces on the columns. [ABSTRACT FROM AUTHOR] |
| Copyright of ACI Structural Journal is the property of American Concrete Institute and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 193466876 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Sensing-Based Simulation of Bending Moments in Reinforced Concrete Columns. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Iranmanesh%2C+Amir%22">Iranmanesh, Amir</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Panahi%2C+Mahsa%22">Panahi, Mahsa</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ansari%2C+Farhad%22">Ansari, Farhad</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22ACI+Structural+Journal%22">ACI Structural Journal</searchLink>. May2026, Vol. 123 Issue 3, p81-94. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Bending+moment%22">Bending moment</searchLink><br /><searchLink fieldCode="DE" term="%22Concrete+columns%22">Concrete columns</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Fiber+Bragg+gratings%22">Fiber Bragg gratings</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+health+monitoring%22">Structural health monitoring</searchLink><br /><searchLink fieldCode="DE" term="%22Ground+motion%22">Ground motion</searchLink><br /><searchLink fieldCode="DE" term="%22Damage+models%22">Damage models</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Integrating real-time sensor data with physics-based models enhances the accuracy and efficiency of structural simulation and prognosis. In this study, a sensing-based simulation method is introduced to compute bending moments in reinforced concrete bridge columns subjected to seismic motions, based on the measured strains continuously fed into plasticity models. The experimental program included hybrid testing of scaled reinforced concrete bridges under consecutive seismic events. The experimental columns were instrumented with embedded as well as surface-adhered fiber-optic Bragg grating (FBG) sensors for real-time monitoring of strains, reflecting degradation of the columns during the formation of damage. The fundamental assumption of strain compatibility in reinforced concrete members was investigated for the successive progression of damage in the cross sections of the columns. The stress distributions within the concrete core and cover were computed through the confined and unconfined concrete stress-strain relations for loading, unloading, and reloading scenarios. The bending moments in the cross section were computed and compared with the corresponding experimental values calculated based on direct measurements of forces. The results from this study revealed that the cross-sectional strains exhibit three primary features during the seismic events that need to be considered for the accurate calculation of bending moments. Computation of the bending moments requires consideration of the shifts in cyclic reference, post-event residual strains, and real steel strains. Using these features, the computed bending moments during the column tests mimicked the experimental results based on the measured seismic forces on the columns. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of ACI Structural Journal is the property of American Concrete Institute and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=193466876 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.14359/51749316 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 81 Subjects: – SubjectFull: Bending moment Type: general – SubjectFull: Concrete columns Type: general – SubjectFull: Deformations (Mechanics) Type: general – SubjectFull: Fiber Bragg gratings Type: general – SubjectFull: Structural health monitoring Type: general – SubjectFull: Ground motion Type: general – SubjectFull: Damage models Type: general Titles: – TitleFull: Sensing-Based Simulation of Bending Moments in Reinforced Concrete Columns. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Iranmanesh, Amir – PersonEntity: Name: NameFull: Panahi, Mahsa – PersonEntity: Name: NameFull: Ansari, Farhad IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 08893241 Numbering: – Type: volume Value: 123 – Type: issue Value: 3 Titles: – TitleFull: ACI Structural Journal Type: main |
| ResultId | 1 |
