A numerical approach for structural system ldentification by observability techniques
Document typeConference report
PublisherInternational Association for Bridge and Structural Engineers (IABSE)
Rights accessRestricted access - publisher's policy
Observability techniques enable the structural system identification of static structures from a symbolic approach. The main advantage of this method is its deep mathematical foundation that enables the definition of parametric equations for the estimates. Nevertheless, this symbolic approach is not enough for the application of this method on actual structures. To fill this gap, this article presents the introduction into the symbolic structural system identification by observability techniques of a new numerical approach. This application includes the development of an algorithm that reduces the unavoidable numerical errors produced by the lack of precision of computers. The comparison of the observability technique with other existing methods presented in the literature shows that the number of required measurements is significantly lower. Furthermore, contrary to other analysed methods, no information from the undamaged structure is required.
CitationLozano-Galant, J.A., Nogal, M., LEI, J., Xu, D., Turmo, J. A numerical approach for structural system ldentification by observability techniques. A: IABSE Congress. "IABSE Congress Stockholm 2016: Challenges in Design and Construction of an Innovative and Sustainable Built Environment: report". Stockholm: International Association for Bridge and Structural Engineers (IABSE), 2016, p. 25-31.