Title:
The Evolution of the Modified Compression Field Theory for Modeling Existing Concrete Structures: Field Assessment, Deterioration, and Repair
Author(s):
Anca Ferche and Vahid Sadeghian
Publication:
Symposium Paper
Volume:
365
Issue:
Appears on pages(s):
165-184
Keywords:
alkali-silica reaction, corrosion, fiber-reinforced polymer, modified compression field theory, nonlinear finite element analysis, structural assessment, strengthening and repair, stochastic simulation.
DOI:
Date:
3/1/2025
Abstract:
Developed 40 years ago by Frank Vecchio and Michael Collins, the Modified Compression Field Theory (MCFT) and its successor, the Disturbed Stress Field Model (DSFM), have proven to be robust methodologies in modeling the response of concrete structures. Originally developed for newly designed concrete structures, they have been refined over the years to expand their applicability to various engineering problems, including modeling deteriorated and repaired structures. This paper reviews the evolution and application of MCFT in modeling and assessment of deteriorated and repaired concrete structures. The first part focuses on the application of MCFT to advanced field structural assessment, including stochastic analysis procedures that incorporate field data. The second part discusses the evolvement of MCFT to account for two of the most common deterioration mechanisms, reinforcement corrosion and alkali-silica reaction. The last part explores the application of the model to structures repaired with fiber-reinforced polymer composites. It is concluded that the extension of the MCFT formulation has enabled it to reliably predict the behavior of both deteriorated and repaired concrete structures.