异形柱框架结构抗震性能分析

采用有限元分析软件ANSYS,建立异形柱框架结构与矩形柱框架结构的三维空间分析模型,对比研究了两种结构在水平地震作用下的弹性地震反应.结果表明：L形柱与对应矩形柱的杆端剪力差别大,而T形柱和十字形柱的杆端剪力与对应的矩形柱相差不大;异形柱框架结构的楼层角位移比矩形柱框架结构的楼层角位移稍大些,但异形柱的扭矩值比对应的矩形柱的扭矩值要小得多.这些结果可供工程设计参考.

Seismic Behavior Analysis of Special-Shaped Column Frame Structure

The 3-dimensional space analysis model of specialshaped colomn frame and rectangle column frame is established using the finite element software ANSYS.The elastic seismic response in the case of horizontal earthquake actions of two structures is studied in contrast.The results indicate: there is a great difference in pole-end shearing force between L-shaped colomn and corresponding rectangular column,while there is no big difference in pole-end shearing force of T-shaped column and cross-shaped column corresponding to rectangular column.The floor angular displacement in special-shaped column frame structure is slightly larger than that in rectangular column frame structure,but the torsion moment in special-shaped column is much smaller than that in rectangular column.Accordingly,the results can be served as the references in engineering design.