Cubic Control for Phase I Smart Base Isolated Benchmark Building with Emphasis on Nonstructural Performance Authors Xu, X., Singh, T., and Dargush, G. Source Journal of Structural Control and Health Monitoring, 13(2-3), 758-774, 2006. Abstract
Most control techniques in the structural engineering literature are aimed at improving performance of
the primary structural system, but may have limited or even adverse effect on nonstructural components
during strong seismic events. In this paper, we emphasize nonstructural performance using an active
controller with a cubic nonlinearity. The controller is optimized based on the frequency response
functions of a SDOF nonlinear oscillator. An eight-story base isolated benchmark building recently
proposed by the ASCE structural control committee is studied as a demonstration by considering both
structural and nonstructural performance indices. We compare the performance of the proposed cubic
controller with that of a LQG-based semiactive control system and a passive energy dissipation system.
It is shown from the simulation results that in most benchmark test cases, the cubic control system produces
better nonstructural performance while maintaining good response characteristics of the primary structural
system. Further research directions for this cubic control system are also pointed out.
@article{Singh06_JSCHM, Author = {X. Xu, T. Singh, G. Dargush}, Journal = {Journal of Structural Control and Health Monitoring}, Month = {November}, Pages = {758-774}, Title = {Cubic Control for Phase I Smart Base Isolated Benchmark Building with Emphasis on Nonstructural Performance}, Volume = {13}, Number = {2}, Year = {2006} } |