ESWP: International Bridge Conference®: Inspection Analysis Part 2

Inspection Analysis Part 2

Wednesday, June 4, 2008
8:00 AM - 12:30 PM

Chair: Lisle E. Williams, PE, PLS, T.W. Consultants, Inc., Pittsburgh, PA

IBC 08-76 - History and Inspection of New York City's Oldest Standing Bridge
Christopher Mele, Baker Engineering NY, Inc., Elmsford, NY; Ellen Macnow, New York City Department of Parks and Recreation, Flushing, NY

The history and inspection of the High Bridge, which is the oldest standing bridge in New York City. This unique inspection required historical research not typical for a bridge inspection, and a wide array of inspection techniques developed specifically for this bridge. This paper describes both the history and inspection of this structure.

IBC 08-77 - Lessons Learned from Non-Destructive Testing of Suspender Ropes
Michael Higgins, PE, Pure Technologies, Columbia, MD

This paper summarizes the results of non-destructive testing of suspender ropes obtained from seven major highway bridges. The non-destructive testing was able to test the free length of small diameter cables to detect and quantify corrosion damage. The paper reviews the findings and documents areas of corrosion damage and the extent of damage.

IBC 08-78 - Field Monitoring and Instrumentation of Star City Bridge, West Virginia
Samir Shoukry, Mourad Y. Riad, Gergis W. William, West Virginia University, Morgantown, WV; Jimmy Wriston, West Virginia Division of Highways, Charleston, WV

The Star City Bridge in West Virginia is heavily instrumented with over 750 sensors of various natures that record time histories of key-performance parameters in the superstructure. The focus of this study is to provide real life set of data that would demonstrate the real-life behavior of long-span light-weight continuous bridge decks since early age of construction.

IBC 08-79 - Innovative Techniques for Suspension Bridge Cable Evaluation and Monitoring
Dyab Khazem, Parsons, New York, NY; Raimondo Betti, Columbia University, New York, NY

This paper discusses the objective of this unprecedented research which is intended to develop, integrate and deploy health monitoring technologies for detecting corrosion damage and monitor the internal environment of suspension cables for corrosion activities by direct and indirect sensing methods.

IBC 08-80 - Managing Asbestos Survey on Bridge Structures
Steve Kadivar, District 4, Department of Transportation, State of California, Oakland, CA

The State of California Department of Transportation (Caltrans) has developed a program to preserve the integrity of numerous highway bridges of the State of California. I first outline the program but will focus on the Department's District 4, which covers several counties in Northern California. My particular focus will be about conducting asbestos surveys of the bridges to assess the asbestos content of the affected bridges' joint seal material.

IBC 08-81 - Meeting the Needs for the Next 30 Years: DC Metro's New Structure Inspection Processes and System
Clay Bunting, Washington Metropolitan Area Transit Authority, Alexandria, VA; Jeremy Shaffer, InspectTech, Pittsburgh, PA

The Washington Metropolitan Area Transit Authority "DC Metro" maintains a large network of bridge and aerial structures. To help meet the current and future challenges Metro has adopted a new software inspection and management system. An overview of the metro system and the implementation of the new software will be covered.

IBC 08-82 - Comparison of New Advances in Underwater Bridge Inspection Technology
Bradley Syler, Daniel G. Stromburg, Collins Engineers, Inc., Chicago, IL

Inspection of bridge elements below water and the streambed surrounding these elements is essential for ensuring public safety and promoting long-term serviceability of bridges over water. Although technology has been used to supplement underwater bridge inspections for many years, new advancements in underwater technology have resulted in new and improved inspection, support and documentation methods.

IBC 08-83 - Long Term Structural Health Monitoring System of a Continuous Steel Girder Bridge
Varsha Singh, Thomas Weinmann, CTL Group, Skokie, IL

CTL Group developed and installed an instrumentation system for Sikessky Bridge in a joint effort with ConnDOT and University of Connecticut for long term performance monitoring. The system consists of 48 sensors and remotely triggered data collection system to measure maximum girder strains, global vibrations, pies tilt and expansion joint movement.

IBC 08-84 - Optical Fibre Extensometers for Concrete Structure Instrumentation
Gilles Hovhanessian, Bernard Basile, Advitam, Velizy, France; Sylvie Delepine-Lesoille, Dominique Richon, LCPC, Paris, France

The LCPC recently developed with its partners a composite-made "wave-shaped sensor" body that enables optimal bonding between optical fiber and concrete. The presentation will focus on the design/realization of optical fiber extensometers for concrete structure instrumentation, including the system's validation during the monitoring of concrete slab deformation in France.

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