01322213

Component

https://doi.org/10.3141/2201-18

http://scholar.google.com...rank&publication_year=2010

Highway bridges are vital links in the U.S. transportation network, providing the public with routes for daily commutes and businesses with the infrastructure needed to supply goods and services. Identifying possible safety problems in the approximately 600,000 bridges across the country generally is accomplished through labor-intensive visual inspections. The National Bridge Inspection Program requires that bridges be inspected at least once every 2 years. Pending legislation spurred by the collapse of the I-35W steel truss bridge in Minneapolis, Minnesota, would increase the inspections for fracture-critical bridges to once a year and likely strain department of transportation resources that are already stretched to the limit. This paper outlines ongoing research sponsored by the National Institute of Standards and Technology that seeks to improve inspection practices by providing the technology and methodology for real-time monitoring of steel bridges. The first generation of two wireless systems (one based on IEEE 802.11 and another on IEEE 802.15.4) from National Instruments has been evaluated in field conditions. This paper presents results of a study to characterize wireless communication in steel box girders and I-girders. In addition, enhancements to be made in the second generation are discussed.

01322203

7IBEC-0037

English

pp 154-161

2010

Transportation Research Record: Journal of the Transportation Research Board

9780309160421

Print

Figures (6) ; Photos (4) ; References (11) ; Tables (1)

Box girders; Field tests; Inspection; Steel bridges; Structural health monitoring; Wireless sensors

Fracture critical members; I girders

Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls

TRIS, TRB, ATRI

Dec 6 2010 2:25PM

• Assessment and Rehabilitation of Corpus Christi Harbor Bridge, Texas
• Assessment of Washington Avenue Bridge Across the Mississippi River in Minneapolis, Minnesota, for Central Corridor Light Rail Transit
• Continuous Remote Monitoring of Structural Health for Life Extension of Uplift Bearing Assembly on Large Cantilever Truss Bridge
• Delaware’s Indian River Inlet Bridge: Comprehensive Plan for Long-Term Structural Monitoring
• Design–Build Replacement of US-90 Bridge over Bay St. Louis, Mississippi
• Jet Grouting to Provide Scour Protection: Bridges Across San Juan Creek near Antonio Parkway, California
• Mass Stabilization for Environmentally Sensitive Projects in Florida
• Moving Substrate in an Ephemeral Stream: Case Study in Bridge Survival
• Multiple Complementary Nondestructive Evaluation Technologies for Condition Assessment of Concrete Bridge Decks
• Renovation of Structural Health Monitoring System for Seohae Bridge, Seoul, South Korea
• Resonant Sensors for Detecting Corrosion in Concrete Bridges
• Sanhao Bridge, Shenyang, China
• Seismic Analysis of Integral Abutment Bridge in Tennessee, Including Soil–Structure Interaction
• Seismic Retrofit of California’s Auburn–Foresthill Bridge
• Thermographic Imaging of Subsurface Deterioration in Concrete Bridges
• Ultimate Limit State of Deep-Corrugated Large-Span Box Culvert
• Using Geophones for Nondestructive Evaluation of Full-Scale Bridges