Performance Evaluation of Compressive Strength Models for SRP and SRG-Confined Concrete Columns
This paper focused on confining effects of externally bonded composites with polymer and grout matrices equipped with steel fibers, respectively named steel reinforced polymer (SRP) and steel reinforced grout (SRG) composites, as novel and effective methods of strengthening structures. To achieve th...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Semnan University
2024-05-01
|
| Series: | Journal of Rehabilitation in Civil Engineering |
| Subjects: | |
| Online Access: | https://civiljournal.semnan.ac.ir/article_7930_41b466162cf52d9b1cbb2576e352a537.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832592016759848960 |
|---|---|
| author | Ehsan Janfada HamidReza Nasseri Hashem Jahangir |
| author_facet | Ehsan Janfada HamidReza Nasseri Hashem Jahangir |
| author_sort | Ehsan Janfada |
| collection | DOAJ |
| description | This paper focused on confining effects of externally bonded composites with polymer and grout matrices equipped with steel fibers, respectively named steel reinforced polymer (SRP) and steel reinforced grout (SRG) composites, as novel and effective methods of strengthening structures. To achieve this goal, an experimental database including 13 and 10 concrete columns with square cross-sections respectively confined by SRP and SRG composites was compiled from a recent empirical study. Moreover, after a comprehensive review and conducting a trial and error process of 45 existing models for estimating the relative compressive strength of confined concrete columns, six models for the SRP-confined concrete columns and six models for SRG-confined concrete columns with square cross-sections were selected and their performance was evaluated by comparing the Pearson correlation coefficient (R) and the mean absolute percentage error (MAPE) criteria. The results illustrated that for the SRP-confined concrete columns with square cross-sections, the selected model from the CNR-DT200 standard with respectively R and MAPE values of 0.7671 and 7.39% outperformed other selected SRP models. On the other hand. for the SRG-confined concrete columns with square cross-sections, the selected model from the research work of Isleem et al. with respectively R and MAPE values of 0.4405 and 18.45% surpassed the other selected SRP models. As most of the proposed models to estimate the relative compressive strength of confined concrete columns were suggested for the fiber-reinforced polymer (FRP) composites rather than the textile-reinforced mortar (TRM) composites, the overall comparison showed that all the selected SRP models outperformed the selected SRG models. |
| format | Article |
| id | doaj-art-994beff1b70049dda90c9169639a3f5c |
| institution | Kabale University |
| issn | 2345-4415 2345-4423 |
| language | English |
| publishDate | 2024-05-01 |
| publisher | Semnan University |
| record_format | Article |
| series | Journal of Rehabilitation in Civil Engineering |
| spelling | doaj-art-994beff1b70049dda90c9169639a3f5c2025-01-21T20:47:36ZengSemnan UniversityJournal of Rehabilitation in Civil Engineering2345-44152345-44232024-05-01122698210.22075/jrce.2023.30715.18557930Performance Evaluation of Compressive Strength Models for SRP and SRG-Confined Concrete ColumnsEhsan Janfada0HamidReza Nasseri1Hashem Jahangir2M.Sc. Student, Department of Civil Engineering, University of Birjand, Birjand, IranDetarrment of Civil Engineering, Research Group of Novel Technologies in Civil Engineering, University of Birjand, Birjand, IranDetarrment of Civil Engineering, Research Group of Novel Technologies in Civil Engineering, University of Birjand, Birjand, IranThis paper focused on confining effects of externally bonded composites with polymer and grout matrices equipped with steel fibers, respectively named steel reinforced polymer (SRP) and steel reinforced grout (SRG) composites, as novel and effective methods of strengthening structures. To achieve this goal, an experimental database including 13 and 10 concrete columns with square cross-sections respectively confined by SRP and SRG composites was compiled from a recent empirical study. Moreover, after a comprehensive review and conducting a trial and error process of 45 existing models for estimating the relative compressive strength of confined concrete columns, six models for the SRP-confined concrete columns and six models for SRG-confined concrete columns with square cross-sections were selected and their performance was evaluated by comparing the Pearson correlation coefficient (R) and the mean absolute percentage error (MAPE) criteria. The results illustrated that for the SRP-confined concrete columns with square cross-sections, the selected model from the CNR-DT200 standard with respectively R and MAPE values of 0.7671 and 7.39% outperformed other selected SRP models. On the other hand. for the SRG-confined concrete columns with square cross-sections, the selected model from the research work of Isleem et al. with respectively R and MAPE values of 0.4405 and 18.45% surpassed the other selected SRP models. As most of the proposed models to estimate the relative compressive strength of confined concrete columns were suggested for the fiber-reinforced polymer (FRP) composites rather than the textile-reinforced mortar (TRM) composites, the overall comparison showed that all the selected SRP models outperformed the selected SRG models.https://civiljournal.semnan.ac.ir/article_7930_41b466162cf52d9b1cbb2576e352a537.pdfcompressive strength modelsperformance evaluationsrp compositessrg compositesconfined columns |
| spellingShingle | Ehsan Janfada HamidReza Nasseri Hashem Jahangir Performance Evaluation of Compressive Strength Models for SRP and SRG-Confined Concrete Columns Journal of Rehabilitation in Civil Engineering compressive strength models performance evaluation srp composites srg composites confined columns |
| title | Performance Evaluation of Compressive Strength Models for SRP and SRG-Confined Concrete Columns |
| title_full | Performance Evaluation of Compressive Strength Models for SRP and SRG-Confined Concrete Columns |
| title_fullStr | Performance Evaluation of Compressive Strength Models for SRP and SRG-Confined Concrete Columns |
| title_full_unstemmed | Performance Evaluation of Compressive Strength Models for SRP and SRG-Confined Concrete Columns |
| title_short | Performance Evaluation of Compressive Strength Models for SRP and SRG-Confined Concrete Columns |
| title_sort | performance evaluation of compressive strength models for srp and srg confined concrete columns |
| topic | compressive strength models performance evaluation srp composites srg composites confined columns |
| url | https://civiljournal.semnan.ac.ir/article_7930_41b466162cf52d9b1cbb2576e352a537.pdf |
| work_keys_str_mv | AT ehsanjanfada performanceevaluationofcompressivestrengthmodelsforsrpandsrgconfinedconcretecolumns AT hamidrezanasseri performanceevaluationofcompressivestrengthmodelsforsrpandsrgconfinedconcretecolumns AT hashemjahangir performanceevaluationofcompressivestrengthmodelsforsrpandsrgconfinedconcretecolumns |