Long-Term Performance Monitoring of the Tech 21 All-Composite Bridge
作者： Daniel N. Farhey
DOI: 10.1061/(ASCE)1090-0268(2005)9:3(255)
关键词: Structural engineering 、 Fibre-reinforced plastic 、 Continuous monitoring 、 Materials science 、 Beam (structure) 、 Deck 、 Composite construction 、 Polyester resin 、 Durability 、 Bridge (interpersonal) 、 Composite material
摘要: Tech 21 is the third all-composite vehicular bridge installed in United States. The deck has sandwich configuration with a center core made by bonding orthotropic fiberglass and polyester tubes. three trapezoidal beams supporting were fabricated using E-glass fibers resin. Each beam was as an integral unit its section to facilitate transportation site, erection, construction. two-lane first fully instrumented bridge, including extensive health-monitoring system during fabrication. A nearly four-year long continuous monitoring carried out demonstrate performance of bridge. Field monitored information studied evaluate behavior durability composites harsh infrastructure environment. This evaluation determines level confidence long-term field benefits composite materials technology.
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