Abstract:
In the recent decade, the concept of "structural health monitoring," or SHM, has
gained prominence due to its promise of reflecting the condition of structures
and facilitating the monitoring of their behavior. Bangladesh is a country with a
long coastline, thus it is unfortunate that the SHM system has not been more
widely deployed on the country's many highway bridges across rivers. Saving
money on manpower, remote monitoring allows for accurate, up-to-date
assessments of a bridge's structural soundness. Recent developments in sensor,
communication, and storage technologies have made a worldwide SHM system
for infrastructures possible. The primary goal of this investigation is to assess
the performance of the structural health monitoring system on the Padma
Multipurpose Bridge. Recent developments in SHM's integration with ITS show
the usefulness of ITS devices (such as traffic cameras and traffic detectors) in
analyzing bridge responses to multimodal traffic with varying loads or during
critical events that cause excessive vibration beyond the normal limit, which can
be of great assistance in tackling the Padma bridge's serviceability challenge.
Integrating information from an ITS device with SHM may increase the
reliability and precision of the SHM system. As a consequence of this
integration, the SHM system would be less likely to misdiagnose damages (i.e.,
vibrations caused by big cars on a bridge may be perceived by a SHM sensor as a
structural health concern of the bridge), resulting in decreased maintenance
costs. This investigative study provided a summary of the SHM systems now in
place for major bridges in Bangladesh, such as the spectacular Padma Bridge,
and discussed their use and appropriateness in the near and far future.
