Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nondestructive of District 08 Bridges Using Modal Parameters
The objective of the proposed work is to evaluate the effectiveness of the repair methods proposed by the Office of Structural Maintenance and Investigations on two structures along the I-40 corridor in San Bernardino County: (1) the south (eastbound) structure of the Fenner Overcrossing (Bridge no. 54-0800) and (2) the south (eastbound) structure of the Watson Wash Bridge (Bridge no. 54-0805). Modal tests are performed on each bridge before repair work is accomplished. The structures are retested after repairs are performed. After each test the modal parameters are extracted and the bridge superstructure evaluated using systems identification and nondestructive damage evaluation. Results of testing and analysis on the Fenner Overcrossing indicated that the superstructure experienced a 2.75 percent increase in the effective modulus, no change in the mass density of the superstructure was identified, and potential damage locations are in the deck and in the neighborhood of Bent 2 and Bent 3.
Nondestructive of District 08 Bridges Using Modal Parameters
The objective of the proposed work is to evaluate the effectiveness of the repair methods proposed by the Office of Structural Maintenance and Investigations on two structures along the I-40 corridor in San Bernardino County: (1) the south (eastbound) structure of the Fenner Overcrossing (Bridge no. 54-0800) and (2) the south (eastbound) structure of the Watson Wash Bridge (Bridge no. 54-0805). Modal tests are performed on each bridge before repair work is accomplished. The structures are retested after repairs are performed. After each test the modal parameters are extracted and the bridge superstructure evaluated using systems identification and nondestructive damage evaluation. Results of testing and analysis on the Fenner Overcrossing indicated that the superstructure experienced a 2.75 percent increase in the effective modulus, no change in the mass density of the superstructure was identified, and potential damage locations are in the deck and in the neighborhood of Bent 2 and Bent 3.
Nondestructive of District 08 Bridges Using Modal Parameters
N. Stubbs (Autor:in) / S. Choi (Autor:in) / R. W. Bolton (Autor:in) / S. Park (Autor:in) / C. Sikorsky (Autor:in)
2001
156 pages
Report
Keine Angabe
Englisch
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