CRCP-9: Improved Computer Program for Mechanistic Analysis of Continuously Reinforced Concrete Pavements
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2001-02-01
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TRIS Online Accession Number:00932468
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Abstract:A new version of the CRCP computer program, CRCP-9, has been developed in this study. The numerical model of the CRC pavements was developed using finite element theories, the crack spacing prediction model was developed using the Monte Carlo method, and the failure prediction model was developed using probability theories. CRCP-9 uses two-dimensional numerical methods to calculate stresses and strains, which is a totally different approach compared with the previous computer program CRCP-8 that uses one-dimensional analytical methods to calculate them. The major characteristics of CRCP-9 that differ from CRCP-8 include consideration of nonlinear variations in temperature and drying shrinkage through the depth of the concrete slab, nonlinear bond-slip relationship between concrete and steel bars, viscoelastic effect of concrete, curling and warping effects, and the ability of changing locations of the longitudinal steel bars. Details of the theoretical background of mechanistic modeling have been presented in this report. The descriptions of the computer program and input and output procedures have also been explained. Sample analysis results from CRCP-9 have been shown and comparisons of the results between CRCP-9 and CRCP-8 have been made.
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