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Unbonded Post-Tensioned Structural Masonry Wall with Rubber Interface for Limited-Damage Systems
| 题名： | Unbonded Post-Tensioned Structural Masonry Wall with Rubber Interface for Limited-Damage Systems |
| 正文语种： | eng |
| 作者： | Kalliontzis, Dimitrios;Schultz, Arturo E.;Sritharan, Sri |
| 作者单位： | Univ Houston Dept Civil & Environm Engn Houston TX 77204 USA;Univ Texas San Antonio Dept Civil & Environm Engn San Antonio TX 78249 USA;Iowa State Univ Dept Civil Construct & Environm Engn Ames IA 50011 USA |
| 关键词： | Unbonded post-tensioning (UPT);Concrete masonry;Rocking;Rubber interface;Impact damping;Self-centering |
| 摘要： | Unbonded post-tensioned (UPT) tendons have been used in structural masonry walls to enhance the self-centering capability of the walls. However, the lateral displacement capacity of masonry walls with UPT tendons can be compromised by early crushing of the compression toes. To prevent toe crushing, this research study employed rubber pads underneath the bottom corners of a full-scale one-story wall. This concept was investigated by subjecting the wall sequentially to free vibration and quasistatic tests, which minimized damage to the masonry and reduced the strength degradation of the wall with increasing lateral drift. Two major damping components were identified: one is due to the instantaneous impact of the wall on the foundation base, and the other is due to the inelastic action occurring within the rubber pads during the continuous phase of rocking motion. Using the test results, a procedure is presented for designing masonry walls with rubber pads and UPT tendons. |
| 出版年： | 2022 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 148 |
| 期： | 1 |
| 页码： | 04021223.1-04021223.12 |
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