EFFECT OF TIME-DELAY ON CONTROL OF SEISMIC-EXCITED BUILDINGS

被引:56
作者
YANG, JN
AKBARPOUR, A
ASKAR, G
机构
[1] Dept. of Civ., Mech. and Envir. Engrg., Washington, DC, 20052, George Washington Univ.
来源
JOURNAL OF STRUCTURAL ENGINEERING-ASCE | 1990年 / 116卷 / 10期
关键词
D O I
10.1061/(ASCE)0733-9445(1990)116:10(2801)
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The sensitivity of a system time delay with respect to the performance of control systems for seismic-excited buildings is examined. The effect of a system time delay depends on the particular control algorithm and the particular control system used. Four control algorithms feasible for applications to conttrol of seismic-excited buildings have been studied. These include the linear quadratic optimal control algorithm and three instantaneous optimal algorithms proposed recently. The sensitivity analysis for each control algorithm is performed using a simulation approach. Both the active tendon control system and the active mass damper have been considered, and the tall building is idealized by a shear-beam lumped-mass discrete system. Numerical examples are worked out to demonstrate the criticality and tolerance of a system time delay for each control system. It is shown that a time delay always results in a degradation for the efficiency of a control system and that the tolerance for a system time delay is quite stringent for cases investigated. © ASCE.
引用
收藏
页码:2801 / 2814
页数:14
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