Seismic response mitigation of adjacent high-rise structures via stochastic optimal coupling-control

Z. G. Ying, Yiqing Ni, J. M. Ko

Research output: Journal article publicationConference articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

The present study attempts to develop a stochastic optimal coupling-control strategy for the seismic response mitigation of adjacent structures coupled with active control devices. The proposed control strategy is based on the combined use of the stochastic dynamical programming principle and the stochastic averaging method. The seismic response mitigation is achieved through the total energy control of modal vibration based on stochastic averaged equations, and thus the dimension of control system is reduced. The seismic excitation spectrum is taken into account by use of the stochastic optimal dynamical programming principle. Following this approach, the derived optimal feedback control force is a nonlinear generalized damping force, which means dissipating energy control. The developed control method is applicable to coupled structures with an arbitrary number of stories and with connecting controllers at any stories. Numerical examples are given to demonstrate the control efficacy of the proposed control strategy for adjacent tall buildings.
Original languageEnglish
Pages (from-to)289-300
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4330
DOIs
Publication statusPublished - 1 Jan 2001
EventSmart Systems for Bridges, Structures, and Highways-Smart Structures and Materials 2001- - Newport Beach, CA, United States
Duration: 5 Mar 20017 Mar 2001

Keywords

  • Active coupling-control
  • Adjacent tall buildings
  • Random seismic response
  • Stochastic optimal control method

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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