原文传递
Piezoelectric Patch Sensors for Structural Integrity Monitoring of Composite-Upgraded Masonry and Concrete Structures; Final rept
| 题名： | Piezoelectric Patch Sensors for Structural Integrity Monitoring of Composite-Upgraded Masonry and Concrete Structures; Final rept |
| 作者： | Berman, J.; Quattrone, R.; Averbuch, A.; Lalande, F.; Cudney, H. |
| 关键词： | Piezoelectric materials; Acoustic impedance; Fiber reinforcement; Structural integrity; Composite materials; Detectors; Real time; Damage assessment; Concrete; Test equipment; Actuators; Electrical measurement; Masonry |
| 摘要： | An acoustical impedance-based structural integrity monitoring technique employing piezoelectric (PE) patch sensor/actuators was used to detect real-time damage introduced to composite-upgraded wall test specimens. Concrete and brick masonry wall sections externally upgraded with fiber-reinforced polymer (FRP) composite materials were subjected to various stresses in a load test machine. During the tests, the wall sections were periodically interrogated via the PE sensor/actuators and electrical impedance measurements were made at various frequencies. When damage was present, the impedance vs frequency signature changed. Furthermore, there was a marked difference between the signature pattern for loading and for debonding of the composite upgrade or cracking of the concrete/masonry substrate. This report includes details on the development of the impedance-based technique and documents a demonstration of the technology on a composite-upgraded pier at Norfolk, VA. |
| 总页数： | 81p |
| 报告类型： | 科技报告 |
相关文献
- FIBER OPTIC SENSING OF PRESTRESSED-PRISM-REINFORCED CONTINUOUS-COMPOSITE CONCRETE BEAMS FOR BRIDGE DECK APPLICATION.
- Connecticut Permanent Long-Term Bridge Monitoring Network Volume 4: Monitoring of Curved Steel Box-Girder Composite Bridge - I-84 EB Flyover to I-91 NB in Hartford (Bridge No. 5868)
- THREE-DIMENSIONAL STRUCTURAL STRAIN MEASUREMENT WITH THE USE OF FIBER-OPTIC SENSORS.
- Performance Testing of Fiber-Reinforced Polymer Composite Overlays for Seismic Rehabilitation of Unreinforced Masonry Walls; Final rept
- Design of Structures, 2004. Transportation research record.
- Novel Optical Fiber Sensors for Monitoring Bridge Structural Integrity.
检索历史
应用推荐
