Evaluation of Damage Indices for Rectangular Concrete-filled Steel Tube Structures
The paper aims to select a simple and effective damage index for estimating the extent of damage of rectangular concrete-filled steel tube (RCFT) structures subjected to ground motions. Two experimental databases of cyclic tests conducted on RCFT columns and frames are compiled. Test results from th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Sciendo
2019-08-01
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| Series: | Measurement Science Review |
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| Online Access: | https://doi.org/10.2478/msr-2019-0023 |
| _version_ | 1818585843490619392 |
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| author | Guan Minsheng Lin Siying Du Hongbiao Cui Jie Yan Taizhou |
| author_facet | Guan Minsheng Lin Siying Du Hongbiao Cui Jie Yan Taizhou |
| author_sort | Guan Minsheng |
| collection | DOAJ |
| description | The paper aims to select a simple and effective damage index for estimating the extent of damage of rectangular concrete-filled steel tube (RCFT) structures subjected to ground motions. Two experimental databases of cyclic tests conducted on RCFT columns and frames are compiled. Test results from the database are then used to evaluate six different damage indices, including the ductility ratio (μ), drift ratio, initial-to-secant stiffness ratio (DKJ), modified initial-to-secant stiffness ratio (Dms), energy coefficient (E), and the combined damage index (DPA) as a benchmark indicator. Selection criteria including correlation, efficiency, and proficiency are utilized in the selection process. The optimal alternative for DPA is identified on the basis of a comprehensive evaluation. The evaluations indicate that Dms previously proposed by some of the authors is the most appropriate substitution of DPA, followed by the drift ratio. For the case of the slenderness ratio less than or equal to 30, the same grades of relation between the investigated damage indices and the benchmark are observed. However, in the case of the slenderness ratio larger than 30, the drift ratio tends to be the optimal alternative. In most cases, μ is proved to be an inadequate replacement of DPA. |
| first_indexed | 2024-12-16T08:43:31Z |
| format | Article |
| id | doaj.art-cd1e9332e2104e67b42fa3e359f444ee |
| institution | Directory Open Access Journal |
| issn | 1335-8871 |
| language | English |
| last_indexed | 2024-12-16T08:43:31Z |
| publishDate | 2019-08-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Measurement Science Review |
| spelling | doaj.art-cd1e9332e2104e67b42fa3e359f444ee2022-12-21T22:37:39ZengSciendoMeasurement Science Review1335-88712019-08-0119417018410.2478/msr-2019-0023msr-2019-0023Evaluation of Damage Indices for Rectangular Concrete-filled Steel Tube StructuresGuan Minsheng0Lin Siying1Du Hongbiao2Cui Jie3Yan Taizhou4College of Civil Engineering, Shenzhen University, Shenzhen518060, P. R. ChinaCollege of Civil Engineering, Shenzhen University, Shenzhen518060, P. R. ChinaCollege of Civil Engineering, Shenzhen University, Shenzhen518060, P. R. ChinaEarthquake Engineering Research and Test Center, Guangzhou University, Guangzhou510405, P. R. ChinaCollege of Civil Engineering, Shenzhen University, Shenzhen518060, P. R. ChinaThe paper aims to select a simple and effective damage index for estimating the extent of damage of rectangular concrete-filled steel tube (RCFT) structures subjected to ground motions. Two experimental databases of cyclic tests conducted on RCFT columns and frames are compiled. Test results from the database are then used to evaluate six different damage indices, including the ductility ratio (μ), drift ratio, initial-to-secant stiffness ratio (DKJ), modified initial-to-secant stiffness ratio (Dms), energy coefficient (E), and the combined damage index (DPA) as a benchmark indicator. Selection criteria including correlation, efficiency, and proficiency are utilized in the selection process. The optimal alternative for DPA is identified on the basis of a comprehensive evaluation. The evaluations indicate that Dms previously proposed by some of the authors is the most appropriate substitution of DPA, followed by the drift ratio. For the case of the slenderness ratio less than or equal to 30, the same grades of relation between the investigated damage indices and the benchmark are observed. However, in the case of the slenderness ratio larger than 30, the drift ratio tends to be the optimal alternative. In most cases, μ is proved to be an inadequate replacement of DPA.https://doi.org/10.2478/msr-2019-0023rectangular concrete-filled steel tubedamage indexcyclic loadingexperimental databaseslenderness ratioevaluation |
| spellingShingle | Guan Minsheng Lin Siying Du Hongbiao Cui Jie Yan Taizhou Evaluation of Damage Indices for Rectangular Concrete-filled Steel Tube Structures Measurement Science Review rectangular concrete-filled steel tube damage index cyclic loading experimental database slenderness ratio evaluation |
| title | Evaluation of Damage Indices for Rectangular Concrete-filled Steel Tube Structures |
| title_full | Evaluation of Damage Indices for Rectangular Concrete-filled Steel Tube Structures |
| title_fullStr | Evaluation of Damage Indices for Rectangular Concrete-filled Steel Tube Structures |
| title_full_unstemmed | Evaluation of Damage Indices for Rectangular Concrete-filled Steel Tube Structures |
| title_short | Evaluation of Damage Indices for Rectangular Concrete-filled Steel Tube Structures |
| title_sort | evaluation of damage indices for rectangular concrete filled steel tube structures |
| topic | rectangular concrete-filled steel tube damage index cyclic loading experimental database slenderness ratio evaluation |
| url | https://doi.org/10.2478/msr-2019-0023 |
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