Seismic Performance Analysis of the Special-Shaped Frame Column Structure on Multi-Dimensional Seismic
The article considers the two horizontal components of ground motion and torsional component, to do nonlinear time history analysis both on regular and irregular shaped column frame structure models. The results show that torsional component of ground motion haves some impact on torsion reaction of structures, stiffness of irregular shaped column frame structure is uneven, and angle of columns are greater than that of the regular structure; torsion haves some impact on the torque of structure, the torque increases of corner columns is maximum, so corner columns are weak links in shaped column structure, considered fully during the seismic design.
D. Q. Xu and M. M. He, "Seismic Performance Analysis of the Special-Shaped Frame Column Structure on Multi-Dimensional Seismic", Applied Mechanics and Materials, Vols. 90-93, pp. 1644-1648, 2011