TY - GEN
T1 - Modal analysis and testing of the cable-stayed Shipshaw bridge in Jonquiere, Quebec
AU - Filiatrault, Andre
AU - Tinawi, Rene
AU - Felber, Andreas
AU - Ventura, Carlos E.
AU - Stiemer, Sigfried F.
PY - 1993
Y1 - 1993
N2 - The cable-stayed Shipshaw bridge, which crosses the Saguenay river near Jonquiere, Quebec, suffered structural damage during the November 25, 1988 Saguenay earthquake (ML =6.0). One of four anchorage plates connecting the steel nox girders to one abutment failed due to the ground shaking. This paper compares the results of the modal analysis and testing conducted to determine the dynamic properties of the bridge. This comparison validated the dynamic model of the bridge used in a time-step analysis to explain the cause of failure. Measured natural frequencies and mode shapes are compared with the corresponding computed values. The paper also includes a description of the in-situ vibrations measurements in which a 44 ton truck travelling on the bridge was used as dynamic excitation.
AB - The cable-stayed Shipshaw bridge, which crosses the Saguenay river near Jonquiere, Quebec, suffered structural damage during the November 25, 1988 Saguenay earthquake (ML =6.0). One of four anchorage plates connecting the steel nox girders to one abutment failed due to the ground shaking. This paper compares the results of the modal analysis and testing conducted to determine the dynamic properties of the bridge. This comparison validated the dynamic model of the bridge used in a time-step analysis to explain the cause of failure. Measured natural frequencies and mode shapes are compared with the corresponding computed values. The paper also includes a description of the in-situ vibrations measurements in which a 44 ton truck travelling on the bridge was used as dynamic excitation.
UR - https://www.scopus.com/pages/publications/0027755570
M3 - Conference contribution
AN - SCOPUS:0027755570
SN - 0912053410
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 14
EP - 20
BT - Proceedings of SPIE - The International Society for Optical Engineering
PB - Publ by Society of Photo-Optical Instrumentation Engineers
T2 - Proceedings of the 11th International Modal Analysis Conference. Part 1 (of 2)
Y2 - 1 February 1993 through 4 February 1993
ER -