Field Performance of Timber Bridges. 8. Lynches Woods Park Stress-Laminated DeckBridge

摘要

The Lynches Woods Park bridge was constructed during the summer of 1990 inNewberry, South Carolina. It is a single-span, single-lane, stress-laminated deck superstructure that is approximately 30-ft long and 16-ft wide, and 14 in. deep. The bridge is unique in that it is the first known stress-laminated deck bridges to be constructed of Southern Pine lumber treated with chromated copper arsenate. The performance of the bridge was continuously monitored for approximately 3 years, beginning at the time of installation. Performance monitoring involved gathering and analyzing data relative to the moisture content, the force level of stressing bars, and behavior under static-load conditions. In addition, comprehensive visual inspections were conducted to assess the overall structure condition.