Statistical properties and material partial factors of ECC material based on shear failure member
Engineered Cementitious Composite (ECC) material, as a hybrid material, also has uncertainties. In addition, the shear failure mechanism of reinforced ECC (R-ECC) member is different from that of ordinary reinforced concrete (RC) member, and a new material partial factor of ECC is needed. This paper...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2024.1534658/full |
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| author | Shixiang Yi Zhongping Tang Wei Shi Fan Feng Xiang Liu |
| author_facet | Shixiang Yi Zhongping Tang Wei Shi Fan Feng Xiang Liu |
| author_sort | Shixiang Yi |
| collection | DOAJ |
| description | Engineered Cementitious Composite (ECC) material, as a hybrid material, also has uncertainties. In addition, the shear failure mechanism of reinforced ECC (R-ECC) member is different from that of ordinary reinforced concrete (RC) member, and a new material partial factor of ECC is needed. This paper conducted experiments for the statistical mechanics of ECC strength. The shear failure test data of 36 R-ECC members were collected, and four representative bearing capacity calculation models were also collected and assessed. Then, the limit state function of the shear capacity of R-ECC beams was derived, and the reliability indexes were calculated. To evaluate the ECC material partial factor reasonably, it was calibrated. The results indicate that ECC strength obeys a normal distribution, and the coefficient of variation can be taken as 6.0%. The calculated reliability index will increase with the increase of the material partial factor and the increase of the ratio k between dead load and live load. Considering the different k values comprehensively, for the guidelines GB 50068-2018, CSA S806, ACI 440.2R, CIDAR, fIB TG 9.3 and UK TR 55, the recommended values for the material partial factor are 1.20, 1.10., 1.15, 1.55, 1.05, and 1.05, respectively. |
| format | Article |
| id | doaj-art-39eb03e24a3e4dd6acf22e4432b4c429 |
| institution | Kabale University |
| issn | 2296-8016 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj-art-39eb03e24a3e4dd6acf22e4432b4c4292025-01-08T06:11:56ZengFrontiers Media S.A.Frontiers in Materials2296-80162025-01-011110.3389/fmats.2024.15346581534658Statistical properties and material partial factors of ECC material based on shear failure memberShixiang Yi0Zhongping Tang1Wei Shi2Fan Feng3Xiang Liu4Institute of Structural Material Failure and Strengthening Technology, Ningbo Polytechnic, Ningbo, Zhejiang, ChinaInstitute of Structural Material Failure and Strengthening Technology, Ningbo Polytechnic, Ningbo, Zhejiang, ChinaInstitute of Structural Material Failure and Strengthening Technology, Ningbo Polytechnic, Ningbo, Zhejiang, ChinaSchool of Architectural Engineering, Hunan Institute of Engineering, Xiangtan, ChinaSchool of Civil Engineering, Fujian University of Technology, Fuzhou, ChinaEngineered Cementitious Composite (ECC) material, as a hybrid material, also has uncertainties. In addition, the shear failure mechanism of reinforced ECC (R-ECC) member is different from that of ordinary reinforced concrete (RC) member, and a new material partial factor of ECC is needed. This paper conducted experiments for the statistical mechanics of ECC strength. The shear failure test data of 36 R-ECC members were collected, and four representative bearing capacity calculation models were also collected and assessed. Then, the limit state function of the shear capacity of R-ECC beams was derived, and the reliability indexes were calculated. To evaluate the ECC material partial factor reasonably, it was calibrated. The results indicate that ECC strength obeys a normal distribution, and the coefficient of variation can be taken as 6.0%. The calculated reliability index will increase with the increase of the material partial factor and the increase of the ratio k between dead load and live load. Considering the different k values comprehensively, for the guidelines GB 50068-2018, CSA S806, ACI 440.2R, CIDAR, fIB TG 9.3 and UK TR 55, the recommended values for the material partial factor are 1.20, 1.10., 1.15, 1.55, 1.05, and 1.05, respectively.https://www.frontiersin.org/articles/10.3389/fmats.2024.1534658/fullreliabilityengineered cementitious compositematerial partial factorlimit state functionMonte Carlo simulation |
| spellingShingle | Shixiang Yi Zhongping Tang Wei Shi Fan Feng Xiang Liu Statistical properties and material partial factors of ECC material based on shear failure member Frontiers in Materials reliability engineered cementitious composite material partial factor limit state function Monte Carlo simulation |
| title | Statistical properties and material partial factors of ECC material based on shear failure member |
| title_full | Statistical properties and material partial factors of ECC material based on shear failure member |
| title_fullStr | Statistical properties and material partial factors of ECC material based on shear failure member |
| title_full_unstemmed | Statistical properties and material partial factors of ECC material based on shear failure member |
| title_short | Statistical properties and material partial factors of ECC material based on shear failure member |
| title_sort | statistical properties and material partial factors of ecc material based on shear failure member |
| topic | reliability engineered cementitious composite material partial factor limit state function Monte Carlo simulation |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2024.1534658/full |
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