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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Applicability of Concrete-Filled FRP Tube (CFFT) System for Multihazard Resilient Bridge Columns
Concrete-filled, fiber-reinforced polymer (FRP) tube [CFFT] columns were first introduced as an alternative to conventional reinforced concrete (RC) columns to enhance the durability and corrosion resistance of bridge piers. Recently, the CFFT column system has been validated as a high performance alternative to RC columns for multihazard resilience. This paper describes the superb seismic, blast and fire resiliency of this column system. First, the CFFT column was tested alongside a conventional RC column during shaking table experiments of a two-column bent at the University of Nevada, Reno. The shaking table experiments were the first to reveal the superb ductility and energy dissipation provided by CFFT columns. Next, the system was further tested at the U.S. Army Corps of Engineers Research and Development Center (USACEERDC) where the blast performance of the system was studied and compared against that of RC columns. Finally, fire testing of the CFFT column at a fire testing facility substantiated the system's fire resilience when properly protected. The CFFT system was able to endure more than two hours of extreme temperature exposure. Residual capacity tests conducted at the University of Connecticut on fire and blast-damaged CFFT and RC columns showed that the CFFT system provides much better axial strength and ductility retention after a damaging event. The three experimental studies solidly corroborate the applicability of CFFT columns for multihazard bridge design.
Applicability of Concrete-Filled FRP Tube (CFFT) System for Multihazard Resilient Bridge Columns
Concrete-filled, fiber-reinforced polymer (FRP) tube [CFFT] columns were first introduced as an alternative to conventional reinforced concrete (RC) columns to enhance the durability and corrosion resistance of bridge piers. Recently, the CFFT column system has been validated as a high performance alternative to RC columns for multihazard resilience. This paper describes the superb seismic, blast and fire resiliency of this column system. First, the CFFT column was tested alongside a conventional RC column during shaking table experiments of a two-column bent at the University of Nevada, Reno. The shaking table experiments were the first to reveal the superb ductility and energy dissipation provided by CFFT columns. Next, the system was further tested at the U.S. Army Corps of Engineers Research and Development Center (USACEERDC) where the blast performance of the system was studied and compared against that of RC columns. Finally, fire testing of the CFFT column at a fire testing facility substantiated the system's fire resilience when properly protected. The CFFT system was able to endure more than two hours of extreme temperature exposure. Residual capacity tests conducted at the University of Connecticut on fire and blast-damaged CFFT and RC columns showed that the CFFT system provides much better axial strength and ductility retention after a damaging event. The three experimental studies solidly corroborate the applicability of CFFT columns for multihazard bridge design.
Applicability of Concrete-Filled FRP Tube (CFFT) System for Multihazard Resilient Bridge Columns
Echevarria, A. E. (Autor:in) / Zaghi, A. E. (Autor:in) / Saiidi, M. (Autor:in)
Structures Congress 2014 ; 2014 ; Boston, Massachusetts, United States
Structures Congress 2014 ; 441-452
02.04.2014
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Applicability of Concrete Filled FRP Tube (CFFT) System for Multihazard Resilient Bridge Columns
| British Library Conference Proceedings | 2014
CFFT Bridge Columns for Multihazard Resilience
| ASCE | 2015
| British Library Online Contents | 2018