Research Article
Assessment of the Dynamic Behavior of Beam-to-Column Connections in Steel Pallet Racks under Cyclic Load: Numerical Investigation
Figure 12
The comparison of stiffness deterioration. (a) Positive unloading stiffness. (b) Negative loading stiffness. (c) Negative unloading stiffness. (d) Positive loading stiffness.
(a) |
(b) |
(c) |
(d) |