Experimental study of a large-scale buckling-restrained braced frame using the pseudo-dynamic testing method

Larry A. Fahnestock, James M. Ricles, Richard Sause

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publication8th US National Conference on Earthquake Engineering 2006
Pages6860-6869
Number of pages10
StatePublished - 2006
Externally publishedYes
Event8th US National Conference on Earthquake Engineering 2006 - San Francisco, CA, United States
Duration: Apr 18 2006Apr 22 2006

Publication series

Name8th US National Conference on Earthquake Engineering 2006
Volume12

Other

Other8th US National Conference on Earthquake Engineering 2006
Country/TerritoryUnited States
CitySan Francisco, CA
Period4/18/064/22/06

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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