原文传递
Dynamic Response of Masonry Walls Strengthened with Engineered Cementitious Composites under Simulated Debris Flow
| 题名： | Dynamic Response of Masonry Walls Strengthened with Engineered Cementitious Composites under Simulated Debris Flow |
| 正文语种： | eng |
| 作者： | Jie Yu;Zhifu Dong;Jiangtao Yu;Feichi Liu;Junhong Ye;Fangyuan Dong |
| 作者单位： | Tongji Univ.;Tongji Univ.;Tongji Univ.;Tongji Univ.;Tongji Univ.;Tongji Univ. |
| 关键词： | Engineered cementitious composites (ECC);Impact response;Strengthening;Masonry walls;Debris flow |
| 摘要： | Abstract Unreinforced masonry buildings are prone to catastrophic damage when subjected to debris-flow impact. Engineered cementitious composite (ECC) layers were utilized to strengthen unreinforced masonry walls belonging to a 1/2 scaled timber-masonry building to mitigate the risk of collapse, and rolling steel balls of various masses were used to impact the strengthened walls to investigate the effects of the ECC layer strengthening. The typical characteristics of ECC, i.e., multiple cracking and high damage tolerance, were clearly exhibited during impacting, which helped to transfer the failure mode of the masonry walls from brittle to a much more ductile one. This article introduces strain response, displacement response, acceleration response, and dynamic property of the strengthened walls under impact. The test results demonstrated that ECC layer strengthening can significantly enhance impact resistance, including stiffness, energy dissipation, etc. For simplified assessment, the residual displacement ratio is recommended as the indicator to characterize the damage level of masonry walls strengthened with the ECC layers. |
| 出版年： | 2022 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 148 |
| 期： | 9 |
| 页码： | 1-15 |
相关文献
- Effect of Environmental Aging on the Numerical Response of FRP-Strengthened Masonry Walls
- Shaking-Table Test on a Two-Story Timber-Framed Masonry Structure Retrofitted with Ultra-High Ductile Concrete
- Dynamic Response of Concrete Frames Including Plain Ductile Cementitious Composites
- Shear Strength of Beams Made Using Hybrid Fiber-Engineered Cementitious Composites
- Strength and Seismic Performance Factors of Posttensioned Masonry Walls
- Masonry Walls under Combined In-Plane and Out-of-Plane Loadings
检索历史
应用推荐
