Prestress Force Monitoring and Quantification of Precast Segmental Beams through Neutral Axis Location Identification
This paper proposes using neutral axis locations to monitor and quantify the prestress force in post-tensioned precast segmental beams. Strain measurements are used to obtain the neutral axis locations of specific cross-sections of the precast prestressed segmental beams, based on the plane–remains–...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
MDPI
2022
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/90884 |
| _version_ | 1848765450850140160 |
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| author | Li, Han Li, Jun Xin, Y. Hao, Hong Le, Tan D. Pham, Thong |
| author_facet | Li, Han Li, Jun Xin, Y. Hao, Hong Le, Tan D. Pham, Thong |
| author_sort | Li, Han |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper proposes using neutral axis locations to monitor and quantify the prestress force in post-tensioned precast segmental beams. Strain measurements are used to obtain the neutral axis locations of specific cross-sections of the precast prestressed segmental beams, based on the plane–remains–plane and linear strain distribution assumption. A theoretical calculation method based on the static equilibrium of a specific cross-section is developed to calculate the prestress force in segmental beams based on the neutral axis location. To verify the accuracy of the proposed method, a post-tensioned prestressed segmental beam is built and tested in the laboratory. A corresponding high-fidelity finite element model is also developed based on the beam design and material properties. Experimental studies and numerical simulations are conducted to verify the feasibility and accuracy of the proposed method in quantifying the prestress force in precast segmental beams. Both experimental and numerical results demonstrate that the proposed method can reliably estimate the prestress force, which can be used to monitor the prestress force loss in post-tensioned structures. |
| first_indexed | 2025-11-14T11:35:27Z |
| format | Journal Article |
| id | curtin-20.500.11937-90884 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:35:27Z |
| publishDate | 2022 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-908842023-05-09T08:12:10Z Prestress Force Monitoring and Quantification of Precast Segmental Beams through Neutral Axis Location Identification Li, Han Li, Jun Xin, Y. Hao, Hong Le, Tan D. Pham, Thong Science & Technology Physical Sciences Technology Chemistry, Multidisciplinary Engineering, Multidisciplinary Materials Science, Multidisciplinary Physics, Applied Chemistry Engineering Materials Science Physics precast segmental beam prestress force quantification post-tensioning neutral axis location VIBRATION FREQUENCY CONCRETE PARAMETERS BEHAVIOR This paper proposes using neutral axis locations to monitor and quantify the prestress force in post-tensioned precast segmental beams. Strain measurements are used to obtain the neutral axis locations of specific cross-sections of the precast prestressed segmental beams, based on the plane–remains–plane and linear strain distribution assumption. A theoretical calculation method based on the static equilibrium of a specific cross-section is developed to calculate the prestress force in segmental beams based on the neutral axis location. To verify the accuracy of the proposed method, a post-tensioned prestressed segmental beam is built and tested in the laboratory. A corresponding high-fidelity finite element model is also developed based on the beam design and material properties. Experimental studies and numerical simulations are conducted to verify the feasibility and accuracy of the proposed method in quantifying the prestress force in precast segmental beams. Both experimental and numerical results demonstrate that the proposed method can reliably estimate the prestress force, which can be used to monitor the prestress force loss in post-tensioned structures. 2022 Journal Article http://hdl.handle.net/20.500.11937/90884 10.3390/app12052756 English http://purl.org/au-research/grants/arc/FL180100196 http://creativecommons.org/licenses/by/4.0/ MDPI fulltext |
| spellingShingle | Science & Technology Physical Sciences Technology Chemistry, Multidisciplinary Engineering, Multidisciplinary Materials Science, Multidisciplinary Physics, Applied Chemistry Engineering Materials Science Physics precast segmental beam prestress force quantification post-tensioning neutral axis location VIBRATION FREQUENCY CONCRETE PARAMETERS BEHAVIOR Li, Han Li, Jun Xin, Y. Hao, Hong Le, Tan D. Pham, Thong Prestress Force Monitoring and Quantification of Precast Segmental Beams through Neutral Axis Location Identification |
| title | Prestress Force Monitoring and Quantification of Precast Segmental Beams through Neutral Axis Location Identification |
| title_full | Prestress Force Monitoring and Quantification of Precast Segmental Beams through Neutral Axis Location Identification |
| title_fullStr | Prestress Force Monitoring and Quantification of Precast Segmental Beams through Neutral Axis Location Identification |
| title_full_unstemmed | Prestress Force Monitoring and Quantification of Precast Segmental Beams through Neutral Axis Location Identification |
| title_short | Prestress Force Monitoring and Quantification of Precast Segmental Beams through Neutral Axis Location Identification |
| title_sort | prestress force monitoring and quantification of precast segmental beams through neutral axis location identification |
| topic | Science & Technology Physical Sciences Technology Chemistry, Multidisciplinary Engineering, Multidisciplinary Materials Science, Multidisciplinary Physics, Applied Chemistry Engineering Materials Science Physics precast segmental beam prestress force quantification post-tensioning neutral axis location VIBRATION FREQUENCY CONCRETE PARAMETERS BEHAVIOR |
| url | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/90884 |