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A Prediction Model for the Calculation of Effective Stiffness Ratios of Reinforced Concrete Columns
Nonlinear dynamic analyses of reinforced concrete (RC) frame buildings require the use of effective stiffness of members to capture the effect of cracked section stiffness. In the design codes and practices, the effective stiffness of RC sections is given as an empirical fraction of the gross stiffness. However, a more precise estimation of the effective stiffness is important as it affects the distribution of forces and various demands and response parameters in nonlinear dynamic analyses. Indoi:10.3390/ma14071792 pmid:33916380 fatcat:eyz52ef4avfbtfhrdnm7qg7w2y