Stochastic Control of Structures

by Mohamed Abdel-Rohman, (A.M.ASCE), Asst. Prof.; Dept. of Civ. Engrg., Coll. of Engrg. and Petroleum, Kuwait Univ., P.O. Box 5969, Kuwait,
Horst H. Leipholz, Prof.; Dept. of Civ. Engrg., Univ. of Waterloo, Waterloo, Canada,

Serial Information: Journal of the Structural Division, 1981, Vol. 107, Issue 7, Pg. 1313-1325

Document Type: Journal Paper

Abstract: The problem of how to control a structure against random disturbance of known statistical properties is investigated. An optimal control law can be found as a combination of closed-loop control and open-loop control. The open-loop control depends on the statistics of the disturbance, but the closed-loop control depends on the current response of the structure. The approach is used for controlling a sample span bridge against the effect of the irregularities of the bridge deck. The irregularities are assumed to be stationary random processes with known mean and variance. A comparison between the controlled and uncontrolled responses is considered.

Subject Headings: Structural control | Bridge decks | Statistics | Span bridges | Hydraulic structures | Structural behavior | Structural response | Stationary processes |

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