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Wednesday, July 10 • 11:50 - 12:10
PRESERVING OUR INFRASTRUCTURE THROUGH STRUCTURAL HEALTH MONITORING

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Civil infrastructure such as bridges, buildings, dams, etc., are normally designed to have long life spans. Changes in load characteristics, deterioration with age, environmental influences and random actions such as impacts, may cause damage in these structures. Structural Health Monitoring (SHM) has emerged as an efficient means of evaluating the health of a structure and detecting damage. If damage is detected during such an evaluation, appropriate retrofitting can be carried out to prevent collapse of the structure. Vibration based (VB) SHM methods, which give a global damage assessment, have attracted much attention in recent times. The principle of VB methods is that the vibration characteristics of a structure change when it is damaged. The variations in modal properties can hence be used to detect structural damage. We have used VB SHM techniques to detect damage in a variety of structures such as (i) beam and plate structures which are important flexural members in buildings and bridges, (ii) cables of suspension bridges; rib and struts of arch bridges and (iii) dams. This paper presents some highlights of our research in this area. Due to the importance of preserving our infrastructure, especially those that are ageing, we have incorporated both SHM theory and applications into the structural engineering curriculum in our university. This will enable our future engineers to ensure that our infrastructure function safely and efficiently at all times. The presentation planned for this conference will briefly explain the VB SHM technique and then illustrate its application to some structures to demonstrate its ability to successfully detect damage. SHM will help in early damage detection and retrofitting to prevent failure and thereby sustain our infrastructure for longer and safer periods of operation.

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avatar for Mohammad Rafiee

Mohammad Rafiee

Postdoctoral Fellow, Polytechnique Montréal
Mohammad Rafiee received his Ph.D. degree in Mechanical Engineering from the University of Ottawa in 2018. Currently, he is a Postdoctoral Fellow at Polytechnique Montreal in Canada. His research interests are primarily focused on the development of advanced composite materials, smart... Read More →

Authors

Wednesday July 10, 2019 11:50 - 12:10 EDT
St-Laurent 8
  T07 Struct. dyn. & nonlin. vib., RS05 Fatig fractr & jnt interf

Attendees (6)