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April 23, 2026Journal of Bridge Engineering

MT-InSAR Assessment of Bridge Monitoring Using Finite-Element Analysis under Thermal and Traffic Loads

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Authors

AKArslan Q. KhanBABassem Andrawes

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Overview

Demonstrates the use of satellite imagery for monitoring bridge health under various loads, highlighting practical applications.

Key Points

  • The research aims to evaluate the feasibility of satellite imagery for long-term monitoring of bridge health using MT-InSAR and FEA.
  • Integrated MT-InSAR analysis with FEA to monitor displacements over a 9-year period.
  • Processed 223 Sentinel-1A satellite images using permanent scatterer interferometry.
  • Conducted additional FEA simulations to account for vehicular live loads.
  • MT-InSAR showed seasonal thermal displacement trends, with changes from -6 mm in summer to +4 mm in winter.
  • Discrepancies of up to 6.7 mm between MT-InSAR and thermal-only FEA were noted under certain conditions.
  • Classification of MT-InSAR measurements by traffic improved correlation, achieving R values up to 0.89.

Cite This Study

Khan et al. (2026) studied this question.

synapsesocial.com/papers/69e9b91385696592c86ebf04https://doi.org/10.1061/jbenf2.beeng-7850
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