Evaluation of Bridge Fiber Optic Sensor Systems

Details

• Creators:
  Weldon, Brad D. ; Jáuregui, David V. ; Cuaron, Alain ; Lane, Abram
• Corporate Creators:
  New Mexico State University. Department of Civil Engineering
• Corporate Contributors:
  New Mexico. Department of Transportation. Research Bureau ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Bridges Fiber Optics High Performance Concrete Sensors Structural Health Monitoring
• Publication/ Report Number:
  NM12SP-07-012
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  March 15 – July 15, 2016
• Corporate Publisher:
  New Mexico. Department of Transportation
• Abstract:
  Over a decade ago at the time of construction, three New Mexico bridges (9234, 9266, 9336) were instrumented with fiber optic sensors for structural health monitoring purposes. The sensors were installed with the intention of monitoring the performance of the bridges throughout their life cycle to provide a better understanding of bridge behavior and ensure public safety. These bridges were some of the first New Mexico bridges constructed with High Performance Concrete (HPC) and the first to use robust, embedded fiber optic sensors. The ultimate goal of the instrumentation and monitoring was to gain information on the prestress losses, deformations/strains, thermal effects, and curvature over the life of the bridge. The last monitoring of these bridges occurred nearly 10 years ago. Since that time, the instrumentation has been dormant. Over a duration of six days, each bridge’s sensors were evaluated. It was found that approximately 90% of the embedded sensors were still viable providing capabilities to establish a long-term structural health monitoring program at these bridges. Additionally, data were collected (when possible) under ambient conditions, modified load tests were performed, and recommendations for the repair, required equipment, and potential uses of data collected are provided.
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:6621038a4ad8bec0753aeaa65455ed7a63ee255dbac33fae059235a68aafdb0aaa042f33b0e9bdaecacee83086176f0fbd4c44cb6dc86cbfcd3bee4148f7f23f
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/87317/dot_87317_DS1.pdf
• File Type:
  [PDF - 26.67 MB ]