Title:
Toward Crack-Based Assessment of Existing Reinforced Concrete Structures
Author(s):
Amirali Bahnamiri and Trevor D. Hrynyk
Publication:
Symposium Paper
Volume:
365
Issue:
Appears on pages(s):
148-164
Keywords:
shear, performance assessment, cracking, disturbed stress field model (DSFM), nonlinear modeling, finite element.
DOI:
10.14359/51746689
Date:
3/1/2025
Abstract:
This paper presents a review of different modeling techniques that have been proposed to employ visual concrete cracking measurements as input in ‘crack-based’ reinforced concrete analysis procedures. The suitability of a recently developed crack-informed modeling approach that incorporates concrete cracking measurements as model input, using an equivalent loading approach where concrete cracks are replaced by fictitious loads that induce similar damage, is examined for applications involving idealized RC panel elements presented in the literature. The procedure employs the formulations of the Disturbed Stress Field Model (DSFM) as the basis for cracked reinforced concrete material and compatibility modeling and a solution framework that permits simple implementation in smeared crack continuum analysis procedures. Preliminary results indicate that crack-based modeling procedures can be used to provide enhanced performance assessments of cracked RC components.