Experimental multi-level seismic performance assessment of 3D RC frame designed for damage avoidance Academic Article uri icon

abstract

  • This paper experimentally investigates the application of damage avoidance design (DAD) philosophy to moment-resisting frames with particular emphasis on detailing of rocking interfaces. An 80% scale three-dimensional rocking beam-column joint sub-assembly designed and detailed based on damage avoidance principles is constructed and tested. Incremental dynamic analysis is used for selecting ground motion records to be applied to the sub-assembly for conducting a multi-level seismic performance assessment (MSPA). Analyses are conducted to obtain displacement demands due to the selected near- and medium-field ground motions that represent different levels of seismic hazard. Thus, predicted displacement time histories are applied to the sub-assembly for conducting quasi-earthquake displacement tests. The sub-assembly performed well reaching drifts up to 4.7% with only minor spalling occurring at rocking beam interfaces and minor flexural cracks in beams. Yielding of post-tensioning threaded bars occurred, but the sub-assembly did not collapse. The externally attached energy dissipators provided large hysteretic dissipation during large drift cycles. The sub-assembly satisfied all three seismic performance requirements, thereby verifying the superior performance of the DAD philosophy. Copyright 2007 John Wiley & Sons, Ltd.

published proceedings

  • EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS

author list (cited authors)

  • Bradley, B. A., Dhakal, R. P., Mander, J. B., & Li, L.

citation count

  • 46

complete list of authors

  • Bradley, Brendon A||Dhakal, Rajesh P||Mander, John B||Li, Louman

publication date

  • January 2008

publisher