To simulate the macroscopic law of crack developing, taking both computing efficiency and accuracy into consideration, based on Euler-Bernoulli layered beam element theory, theory of plasticity and numerical method, with refined analysis of residual force as the focus, the method of layered beam element with rigid arms was used to eliminate errors due to the moving of neutral axis. Then material nonlinear program was developed. The whole failure progress analysis of two groups of RC beams was conducted and the data of PC test beams under cracking stage were compared. The results show that the ...
