Simplified Data-Driven Model for the Moment Curvature of T-Shaped RC Shear Walls
Sectional deformation quantities, such as curvature and ductility, are of prime significance in the displacement-based seismic design and performance evaluation of structural members. However, few studies on the estimates of curvatures at different limit states have been performed on asymmetric flan...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/9897827 |
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| author | Bin Wang Wenzhe Cai Qingxuan Shi |
| author_facet | Bin Wang Wenzhe Cai Qingxuan Shi |
| author_sort | Bin Wang |
| collection | DOAJ |
| description | Sectional deformation quantities, such as curvature and ductility, are of prime significance in the displacement-based seismic design and performance evaluation of structural members. However, few studies on the estimates of curvatures at different limit states have been performed on asymmetric flanged walls. In this paper, a parametric study was performed for a series of T-shaped wall cross-sections based on moment-curvature analyses. By investigating the effects of the axial load ratio, reinforcement content, material properties, and geometric parameters on curvatures at the yield and ultimate limit state, we interpret the variation in curvature with different influencing factors in detail according to the changes of the neutral axis depth. Based on the regression analyses of the numerical results of 4941 T-shaped cross-sections, simple expressions to estimate the yield curvature and ultimate curvature for asymmetric flanged walls are developed, and simplified estimates of the ductility capacity including curvature ductility and displacement ductility are further deduced. By comparing with the experimental results, we verify the accuracy of the proposed formulas. Such simple expressions will be valuable for the determination of the displacement response of asymmetric flanged reinforced concrete walls. |
| format | Article |
| id | doaj-art-b49b2de28a034cbbb86aea471f30e611 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-b49b2de28a034cbbb86aea471f30e6112025-02-03T01:21:10ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/98978279897827Simplified Data-Driven Model for the Moment Curvature of T-Shaped RC Shear WallsBin Wang0Wenzhe Cai1Qingxuan Shi2State Key Laboratory of Green Building in Western China, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaState Key Laboratory of Green Building in Western China, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaState Key Laboratory of Green Building in Western China, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSectional deformation quantities, such as curvature and ductility, are of prime significance in the displacement-based seismic design and performance evaluation of structural members. However, few studies on the estimates of curvatures at different limit states have been performed on asymmetric flanged walls. In this paper, a parametric study was performed for a series of T-shaped wall cross-sections based on moment-curvature analyses. By investigating the effects of the axial load ratio, reinforcement content, material properties, and geometric parameters on curvatures at the yield and ultimate limit state, we interpret the variation in curvature with different influencing factors in detail according to the changes of the neutral axis depth. Based on the regression analyses of the numerical results of 4941 T-shaped cross-sections, simple expressions to estimate the yield curvature and ultimate curvature for asymmetric flanged walls are developed, and simplified estimates of the ductility capacity including curvature ductility and displacement ductility are further deduced. By comparing with the experimental results, we verify the accuracy of the proposed formulas. Such simple expressions will be valuable for the determination of the displacement response of asymmetric flanged reinforced concrete walls.http://dx.doi.org/10.1155/2019/9897827 |
| spellingShingle | Bin Wang Wenzhe Cai Qingxuan Shi Simplified Data-Driven Model for the Moment Curvature of T-Shaped RC Shear Walls Advances in Civil Engineering |
| title | Simplified Data-Driven Model for the Moment Curvature of T-Shaped RC Shear Walls |
| title_full | Simplified Data-Driven Model for the Moment Curvature of T-Shaped RC Shear Walls |
| title_fullStr | Simplified Data-Driven Model for the Moment Curvature of T-Shaped RC Shear Walls |
| title_full_unstemmed | Simplified Data-Driven Model for the Moment Curvature of T-Shaped RC Shear Walls |
| title_short | Simplified Data-Driven Model for the Moment Curvature of T-Shaped RC Shear Walls |
| title_sort | simplified data driven model for the moment curvature of t shaped rc shear walls |
| url | http://dx.doi.org/10.1155/2019/9897827 |
| work_keys_str_mv | AT binwang simplifieddatadrivenmodelforthemomentcurvatureoftshapedrcshearwalls AT wenzhecai simplifieddatadrivenmodelforthemomentcurvatureoftshapedrcshearwalls AT qingxuanshi simplifieddatadrivenmodelforthemomentcurvatureoftshapedrcshearwalls |