Statistical Bridge Damage Detection Using Temperature-Induced Strains
bridge inspections can be supplemented by structural health monitoring (SHM) systems,
which leverage advancing technologies of analysis, instrumentation, and data management.
This article describes an approach for correlation of SHM systems via a damage detection
method using temperature-induced strains. Temperature and strain sensors installed on
the Powder Mill Bridge in ... read moreBarre, Massachusetts show diurnal and seasonal trends. For an
undamaged bridge, there is an expected prediction interval of induced strains for a
given temperature. A finite element model predicts similar trends in an undamaged
situation. Damage scenarios on the model demonstrate impacts to the structural response.
From these changes to the model's structural response, the authors can extrapolate that
changes in the recorded structural response is an indication of damage. An advantage of
using temperature in SHM systems is that unlike controlled load tests, temperature
induced changes are continuous and available at no cost or impact to bridge
Thesis (M.S.)--Tufts University, 2016.
Submitted to the Dept. of Civil Engineering.
Advisors: Brian Brenner, and Masoud Sanayei.
Committee: Erin Bell.
Keyword: Civil engineering.read less