The application of structural health monitoring (SHM) systems to civil engineering structures has been a developing studied and practiced topic, that has allowed for a better understanding of structures’ conditions and increasingly lead to a more cost-effective management of those infrastructures In this field, the use of fiber optic sensors has been studied, discussed and practiced with encouraging results The possibility of understanding and monitor the distributed behavior of extensive stretches of critical structures it’s an enormous advantage that distributed fiber optic sensing provides to SHM systems In the past decade, several R & D studies have been performed with the goal of improving the knowledge and developing new techniques associated with the application of distributed optical fiber sensors (DOFS) in order to widen the range of applications of these sensors and also to obtain more correct and reliable data This paper presents, after a brief introduction to the theoretical background of DOFS, the latest developments related with the improvement of these products by presenting a wide range of laboratory experiments as well as an extended review of their diverse applications in civil engineering structures

A review of distributed optical fiber sensors for civil engineering applications

Operational modal analysis deals with the estimation of modal parameters from vibration data obtained in operational rather than laboratory conditions. This paper extensively reviews operational modal analysis approaches and related system identification methods. First, the mathematical models employed in identification are related to the equations of motion, and their modal structure is revealed. Then, strategies that are common to the vast majority of identification algorithms are discussed before detailing some powerful algorithms. The extraction and validation of modal parameter estimates and their uncertainties from the identified system models is discussed as well. Finally, different modal analysis approaches and algorithms are compared in an extensive Monte Carlo simulation study.

System Identification Methods for (Operational) Modal Analysis: Review and Comparison

Vibration based structural health monitoring of an arch bridge: From automated OMA to damage detection

A review of vibration-based damage detection in civil structures : from traditional methods to Machine Learning and Deep Learning applications

Online automatic identification of the modal parameters of a long span arch bridge

Ambient vibration re-testing and operational modal analysis of the Humber Bridge

http://repositorio-aberto.up.pt/bitstream/10216/80233/2/94136.pdf

Filipe Magalhães

Papers

Vibration based structural health monitoring of an arch bridge: From automated OMA to damage detection

Online automatic identification of the modal parameters of a long span arch bridge

Ambient vibration re-testing and operational modal analysis of the Humber Bridge

Explaining operational modal analysis with data from an arch bridge

Damping Estimation Using Free Decays and Ambient Vibration Tests