The Time History Analysis of the Frame Structure Component Considering Torsion Component of Earthquake
In this paper, both 一-shaped and L-shaped reinforced concrete frame structures are established in ANSYS, and then，the one-way seismic waves, bi-directional seismic waves and two-way plus torsion seismic wave are respectively input to the both of frame structural model, and carried out the torsion angle displacement analysis. Simulations show that: in both frame structures, the torsion angle of column under multidimensional seismic waves is around 20 % greater than it under the one-way seismic wave and corner column is particularly obvious, so we should considered multi-dimensional effects of the earthquake and pay attention to strengthening corner column in seismic design. And the torsion angle of asymmetric structure and increasing rate of it are about 2% larger than the corresponding symmetry structure. So we should pay attention to the torsion effect of irregular structure.
J. Xu et al., "The Time History Analysis of the Frame Structure Component Considering Torsion Component of Earthquake", Applied Mechanics and Materials, Vols. 90-93, pp. 1526-1530, 2011