Open AccessComparison of Stress-Strain Relationship for Confined Concrete Using Two-Dimensional Fiber-Based Cross-Sectional Analysis
Author(s) -
Nia Dwi Puspitasari,
Aulia Dewi Fatikasari
Publication year - 2021
Publication title -
jacee (journal of advanced civil and environmental engineering)
Language(s) - English
Resource type - Journals
ISSN - 2599-3356
DOI - 10.30659/jacee.4.2.93-103
Subject(s) - structural engineering , constitutive equation , ductility (earth science) , regression analysis , linear regression , stress (linguistics) , matlab , column (typography) , reinforced concrete , mathematics , materials science , finite element method , engineering , computer science , statistics , composite material , linguistics , creep , philosophy , connection (principal bundle) , operating system
Stress-strain relationship is the main parameter to identify the strength, ductility and behavior of the structure. Various constitutive models were created in order to simplify the analytical approach of concrete behavior. In this paper, the behavior of reinforced concrete column is modeled using Attard and Setunges (1996) and Manders (1988) stress-strain constitutive model. The appropriate model for reinforced concrete column was determined based on the existing experimental data. Two-dimensional simulation of reinforced concrete column using fiber-based cross-sectional analysis in MATLAB is sighted. And the performance of the reinforced concrete column from the experimental data is compared with the analysis result from the simulation. There are two comparation methods used in this research. The first method is to compare the linear regression with the reference line. The smallest degree between the linear regression and the referrence line is expected. The second method is to compare the Root Mean Square Defiation (RMSD) value. The smallest RMSD value is expected to get the most suitable constitutive model compared to the experimental data. From the computational process, it was found that Manders Constitutive model is preferaed to be used in further analysis problem concerning reinforced concrete column