竖向荷载增大，则位移延性比减小，反之则增大。

With vertical load increasing, ductility ratio decreases, on the contrary, it increases.

采用非线性全过程数值仿真算法确定不等肢T型、L型、十字型柱截面曲率延性比。

The curvature ductility ratio of cross- section for inequal - leg T - shaped, L - shaped and cross- shaped columns are computed by the numerical method.