TY - GEN
T1 - Experimental study of a large-scale buckling-restrained braced frame using the pseudo-dynamic testing method
AU - Fahnestock, Larry A.
AU - Ricles, James M.
AU - Sause, Richard
PY - 2006
Y1 - 2006
N2 - As part of an integrated analytical and experimental research program on buckling-restrained braced frames (BRBFs), a large-scale BRBF was tested using the pseudo-dynamic method. The test frame was subjected to multiple earthquake simulations using the explicit Newmark algorithm. A hybrid testing approach was implemented to account for the P-effects associated with the gravity load carried by the prototype building's gravity frames. The test frame sustained significant drift demands with almost no damage. Story drifts of nearly 5% and buckling-restrained brace maximum ductility demands of over 25 were observed in the maximum considered earthquake simulation. No stiffness or strength degradation was observed. Although residual drifts were large, the testing program demonstrated that the BRBF system can withstand significant seismic input and retain full lateral load-carrying capacity. Non-conventional brace-gusset and beam-column connections demonstrated excellent performance under very large drift demands.
AB - As part of an integrated analytical and experimental research program on buckling-restrained braced frames (BRBFs), a large-scale BRBF was tested using the pseudo-dynamic method. The test frame was subjected to multiple earthquake simulations using the explicit Newmark algorithm. A hybrid testing approach was implemented to account for the P-effects associated with the gravity load carried by the prototype building's gravity frames. The test frame sustained significant drift demands with almost no damage. Story drifts of nearly 5% and buckling-restrained brace maximum ductility demands of over 25 were observed in the maximum considered earthquake simulation. No stiffness or strength degradation was observed. Although residual drifts were large, the testing program demonstrated that the BRBF system can withstand significant seismic input and retain full lateral load-carrying capacity. Non-conventional brace-gusset and beam-column connections demonstrated excellent performance under very large drift demands.
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M3 - Conference contribution
AN - SCOPUS:56249137760
SN - 9781615670444
T3 - 8th US National Conference on Earthquake Engineering 2006
SP - 6860
EP - 6869
BT - 8th US National Conference on Earthquake Engineering 2006
T2 - 8th US National Conference on Earthquake Engineering 2006
Y2 - 18 April 2006 through 22 April 2006
ER -