原文传递
Study of Fiber Reinforced Plastics for Seismic Bridge Restrainers.
| 题名： | Study of Fiber Reinforced Plastics for Seismic Bridge Restrainers. |
| 作者： | johnson, r. saiidi, m. maragakis, m. |
| 关键词： | tensile tests, loads(forces), dynamic tests, steels, design, shake tables, stress strain relations |
| 摘要： | Easily installed and inspected fiber reinforced plastic (FRP) as an alternative to steel for restrainer construction to reduce bridge hinge movements during earthquakes was examined. Glass, carbon, and hybrid (glass/carbon) restrainers were constructed and dynamically tested in the large-scale structures laboratory. Work included: (1) Tensile tests on FRP strips and on FRP/concrete bond versus loading rate; (2) FRP restrainer development, including dynamic testing; (3) Shake table data analysis and comparisons of FRP, steel, and SMA Restrainer performance; (4) Development of a FRP restrainer design method. Findings confirm FRP restrainer potential for future implementation to structures. Results include: (1) FRP strength is strain-rate insensitive; (2) FRP/concrete bond strength is a function of concrete shear strength and is strain rate sensitive; (3) Flexible restrainer construction and restrainer/concrete bond methods are demonstrated; (4) A simplified FRP restrainer design method, more realistic than AASHTO, and that considers bridge structure dynamic characteristics, is proposed. |
| 总页数： | u0704；294p |
| 报告类型： | 科技报告 |
相关文献
- Design of Structures, 2005. Transportation Research Record. Journal of the Transportation Research Board, No. 1928.
- Design of Structures, 2005. Transportation Research Record. Journal of the Transportation Research Board, No. 1928.
- Design of Structures, 2006. Transportation Research Record. Journal of the Transportation Research Board, No. 1976.
- Application of Shape Memory Alloys in Seismic Rehabilitation of Bridges (August 2005). Highway IDEA Program. Final rept.
- Design of Structures, 2004. Transportation research record.
检索历史
应用推荐
