ACTIVE CONTROL OF NONLINEAR BASE-ISOLATED BUILDINGS

被引：57
作者：
BARBAT, AH
RODELLAR, J
RYAN, EP
MOLINARES, N
机构：
[1] TECH UNIV CATALONIA,DEPT APPL MATH 3,E-08034 BARCELONA,SPAIN
[2] UNIV BATH,SCH MATH & SCI,BATH BA2 7AY,AVON,ENGLAND
来源：
JOURNAL OF ENGINEERING MECHANICS-ASCE | 1995年 / 121卷 / 06期
关键词：
D O I：
10.1061/(ASCE)0733-9399(1995)121:6(676)
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A hybrid seismic control system for building structures is considered, which combines a class of passive nonlinear base isolator with an active control system. The active control forces are applied to the structural base with the objective of reducing its absolute displacements. An adaptive control law is formulated to compute the control forces to assure a form of stable behavior of the system under seismic excitation and in the presence of uncertainties in the characteristics of the building and the base isolator. Numerical simulations are performed to assess the effectiveness of the hybrid control system. The global behavior of the structure-base-isolator system is such that the absolute base displacement is significantly reduced, the price paid being a slight increase of the response of the structure.
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页码：676 / 684
页数：9
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