Nonlinear Earthquake Analysis of Reinforced Concrete Frames with Fiber and Bernoulli-Euler Beam-Column Element

Abstract EN

A beam-column element based on the Euler-Bernoulli beam theory is researched for nonlinear dynamic analysis of reinforced concrete (RC) structural element.

Stiffness matrix of this element is obtained by using rigidity method.

A solution technique that included nonlinear dynamic substructure procedure is developed for dynamic analyses of RC frames.

A predicted-corrected form of the Bossak-α method is applied for dynamic integration scheme.

A comparison of experimental data of a RC column element with numerical results, obtained from proposed solution technique, is studied for verification the numerical solutions.

Furthermore, nonlinear cyclic analysis results of a portal reinforced concrete frame are achieved for comparing the proposed solution technique with Fibre element, based on flexibility method.

However, seismic damage analyses of an 8-story RC frame structure with soft-story are investigated for cases of lumped/distributed mass and load.

Damage region, propagation, and intensities according to both approaches are researched.