使用DFOS监控系统对FRP复合材料路桥的长期性能评估
Maciej Kulpa1, Tomasz Siwowski1, Mateusz Rajchel1
1Department of Road and Bridges, Rzeszow University of Technology, 35-084 Rzeszów, Poland.
Sensors (Basel, Switzerland)
|December 11, 2025
概括
纤维增强聚合物 (FRP) 复合桥梁具有良好的长期耐用性. 监测发现了一些小的关节问题,这些问题已成功修复,保持了结构完整性和可用性.
科学领域:
- 土木工程 土木工程是指土木工程.
- 材料科学 材料科学 材料科学
- 结构健康监测 结构健康监测
背景情况:
- 纤维增强聚合物 (FRP) 复合桥梁自上世纪90年代中期以来一直在运行,为长期性能提供了有价值的数据.
- 美国和西欧的早期FRP桥梁通常用于结构完整性的评估.
- 波兰的第一个全FRP桥梁采用了现代结构健康监测 (SHM) 系统与分布式光纤传感 (DFOS).
研究的目的:
- 评估波兰一座全FRP复合桥的长期行为和结构完整性.
- 为了评估桥梁的应变,刚性和动态特性在八年运行期间的变化.
- 为了识别性能下降的情况,并确定修复的有效性.
主要方法:
- 使用基于分布式光纤传感 (DFOS) 的结构健康监测 (SHM) 系统.
- 在八年内进行了三次综合评估,包括静态和动态负载测试.
- 评估应变,刚性和动态性能的变化,以监测桥梁性能.
主要成果:
- 这座FRP复合材料桥在8年的运行中保持了令人满意的结构完整性和耐用性.
- 梁和甲板之间的粘合剂接头质量不够,导致刚性和动态特性略有下降.
- 尽管性能略有下降,但桥的安全性和可用性仍然符合设计要求.
结论:
- FRP复合材料桥梁具有良好的长期耐用性,监测系统对于性能评估至关重要.
- 粘合剂关节质量对于保持FRP桥梁的最佳性能至关重要.
- 有效的维修策略可以恢复受损的FRP桥梁组件,确保持续的安全性和可用性.
关键词:
在FRP桥梁上使用FRP.分布式光纤传感传感器动态特征 动态特征负载测试试验 负载测试试验维修 维修 维修 维修 维修在安全方面,安全是安全的.硬化 硬化 硬化结构健康监测 结构健康监测视觉检查 视觉检查 视觉检查 视觉检查更多相关视频
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