Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Remaining service life of FRP rehabilitated structures
Application of fiber reinforced polymer (FRP) composites is a unique solution for repair of civil infrastructure where advantages exist in terms of material characteristics and ease of application. However, durability characteristics of FRP and its effect on global system behavior are unknown. Most durability studies are conducted at the material level or the component level and limited information is available regarding structural system behavior with subsequent FRP degradation. Structural health monitoring (SHM) provides the paradigm to evaluate system changes over time and the basis for prediction of remaining service life. This paper presents an application of SHM utilizing a vibration based damage detection procedure, material characterization and durability results of FRP, and a reliability index to provide an estimate of the remaining life of FRP rehabilitated structures. Field-testing of an actual bridge structure with simulation of progressive deterioration of FRP is used to demonstrate the service life prediction methodology using time-dependent reliability. Finally, a performance based design methodology is outlined and demonstrated for a deck rehabilitation with CFRP.
Remaining service life of FRP rehabilitated structures
Application of fiber reinforced polymer (FRP) composites is a unique solution for repair of civil infrastructure where advantages exist in terms of material characteristics and ease of application. However, durability characteristics of FRP and its effect on global system behavior are unknown. Most durability studies are conducted at the material level or the component level and limited information is available regarding structural system behavior with subsequent FRP degradation. Structural health monitoring (SHM) provides the paradigm to evaluate system changes over time and the basis for prediction of remaining service life. This paper presents an application of SHM utilizing a vibration based damage detection procedure, material characterization and durability results of FRP, and a reliability index to provide an estimate of the remaining life of FRP rehabilitated structures. Field-testing of an actual bridge structure with simulation of progressive deterioration of FRP is used to demonstrate the service life prediction methodology using time-dependent reliability. Finally, a performance based design methodology is outlined and demonstrated for a deck rehabilitation with CFRP.
Remaining service life of FRP rehabilitated structures
Lee, Luke S. (Autor:in) / Sikorsky, Charles (Autor:in) / Karbhari, Vistasp M. (Autor:in)
2004
13 Seiten, 12 Quellen
Aufsatz (Konferenz)
Englisch
Remaining Life of FRP Rehabilitated Bridge Structures
| British Library Conference Proceedings | 2004
Service life of rehabilitated buildings and other structures
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