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Effect of Environmental Aging on the Numerical Response of FRP-Strengthened Masonry Walls
| 题名： | Effect of Environmental Aging on the Numerical Response of FRP-Strengthened Masonry Walls |
| 正文语种： | 英文 |
| 作者： | Bahman Ghiassi;Paulo B. Lourenco;Daniel V. Oliveira |
| 作者单位： | Univ, of Minho |
| 关键词： | Fiber-reinforced polymers (FRP); Masonry; Durability; Numerical modeling; Long-term performance; Concrete and masonry structures |
| 摘要： | Recent durability studies have shown the susceptibility of bond in fiber-reinforced polymer (FRP) strengthened masonry components to hygrothermal exposures. However, it is not clear how this local material degradation affects the global behavior of FRP-strengthened masonry structures. This study addresses this issue by numerically investigating the nonlinear behavior of FRP-masonry walls after aging in two different environmental conditions. A numerical modeling strategy is adopted and validated with existing experimental tests on FRP-strengthened masonry panels. The model, once validated, is used for modeling of four hypothetical FRP-strengthened masonry walls with different boundary conditio ns, strengthening schemes, and reinforcement ratios. The nonlinear behavior of the walls is then simulated before and after aging in two different environmental conditions. The degradation data are taken from previous accelerated aging tests. The changes in the failure mode and nonlinear response of the walls after aging are presented and discussed. DOI: 10.1061/(ASCE) ST.1943-541X.0001358. © 2015 American Society of Civil Engineers. |
| 出版日期： | 2016.01 |
| 出版年： | 2016 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.142 |
| 期： | NO.01 |
| 页码： | 04015087 |
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