Share Email Print
cover

Proceedings Paper

Robust control law for a friction-based semiactive controller of a two-span bridge
Author(s): Ningsu Luo; Jose Rodellar; Rodolfo Villamizar; Josep Vehi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

This paper addresses the problem of formulating a feedback control law for the semiactive control of a class of two-span bridge, which is equipped with controllable friction devices at the joints between the columns and the deck. A finite element model is available to represent the essential dynamical features of the bridge. Based on this model, a Lyapunov-based robust semiactive control law is designed, which uses feedback from the nodes where the devices are located. Two sources of uncertainties are considered in the design: a first order actuator dynamics and a seismic excitation at the column supports. After the formulation of the control law, numerical tests are performed to assess the efficiency of the control scheme to reduce the response of the bridge.

Paper Details

Date Published: 18 August 2003
PDF: 11 pages
Proc. SPIE 5057, Smart Structures and Materials 2003: Smart Systems and Nondestructive Evaluation for Civil Infrastructures, (18 August 2003); doi: 10.1117/12.482706
Show Author Affiliations
Ningsu Luo, Univ. de Girona (Spain)
Jose Rodellar, Univ. Politecnica de Catalunya (Spain)
Rodolfo Villamizar, Univ. de Girona (Spain)
Josep Vehi, Univ. de Girona (Spain)


Published in SPIE Proceedings Vol. 5057:
Smart Structures and Materials 2003: Smart Systems and Nondestructive Evaluation for Civil Infrastructures
Shih-Chi Liu, Editor(s)

© SPIE. Terms of Use
Back to Top