[2127] DYNAMIC ANALYSIS FOR RC COLUMNS WITH CIRCULAR CROSS SECTION USING MULTI-DIRECTIONAL POLYGONAL 3D LATTICE MODEL
キーワード：3D lattice model, circular cross section, columns, dynamic analysis, reinforced concrete
The study performs nonlinear dynamic analysis for reinforced concrete (RC) columns using the 3D lattice model. For analysis, a model based on geometrical equivalence between circular and square cross sectional areas and a new multi-directional polygonal discretization model with more realistic target geometry are proposed. The applicability of the models is examined performing the dynamic analysis on a circular cross sectional RC column tested by E-Defense. The results show acceptable agreement in behavior after cracking using the proposed multi-directional polygonal model.