TIDC Research Thrust: Transportation infrastructure monitoring and assessment for enhanced life.
PI: Tzuyang Yu (UMass Lowell)
Co-PIs: Susan Faraji (UML), Changhoon Lee (WNEU), Moochul Shin (WNEU)
Institutions: University of Massachusetts Lowell (UML) and Western New England University (WNEU)
PI Email: Tzuyang_Yu@uml.eduPI Phone: 978-934-2288
The problem we are trying to solve is the condition assessment of corroded prestressed concrete (PC) bridge girders in New England. The problem is important because that PC bridge girders are a critical component of highway bridges. Concrete spalling and prestressing strand corrosion not only cause losses in prestress but also lead to premature failures of PC bridges. We propose to
The objectives of this project are to:
This project will enhance the transportation infrastructure durability as follows: Efficient condition assessment algorithm – The chemical-mechanical model proposed by this research will provide a theoretical, but computationally efficient algorithm for assessing the remaining structural strength of PC bridge girders. Data-driven decision-making – The vulnerability function for defining multiple damage states adopts the Bayesian framework, a data-driven method. The outcome can be customized improve the durability of PC bridges through effective structural repair.
12/30/2019 We conducted laboratory accelerated corrosion test (ACT) on reinforced concrete (RC) cylinders (3” by 6”) for their pull-out test. Preliminary data for the pull-out test were developed. In addition, we conducted laboratory synthetic aperture radar (SAR) imaging of RC beams (6” by 6” by 39”) in order to develop condition assessment criteria for the field inspection of concrete bridges.