NEHRP Clearinghouse
- Title
- Reliability Aspects of Structural Control.
- File
- PB83145482.pdf
- Author(s)
- Basharkhah, M. A.; Yao, J. T. P.
- Source
- National Science Foundation, Washington, DC., January 1982, 64 p.
- Abstract
- Active control systems can be used to reduce the effect of lateral earthquake ground motion on structures. The basic assumptions and limitations which must be considered when applying an active control system are noted and several nonlinear control systems, including dead-zone, saturation, and a combination of the two, are studied. Through the use of a simulated earthquake, it is shown that the probability of failure may be reduced by using a perfect control system. However, there is always a time lag between the time when a control force is needed and the time when the required control force can be applied. The effect of such delay time on the reliability of structural control is examined.
- Keywords
- Earthquake resistant structures; Control equipment; Stability methods; Dynamic response; Ground motion; Earthquake engineering; Random variables; Nonlinear systems; Probability distribution functions