## 3 Experimental Phenomena and Result Analysis
### Experimental Result Analysis  
The hysteresis curves of TSPSW-M-1, TCSPSW-M-1, TCSPSW-M-2, and TCSPSW-M-3 are shown in Figure 16. The hysteresis curve of TSPSW-M-1 obtained from the test presents a \"bow-shaped\" form. The curve is relatively full, but it has a pinching effect. This indicates that the plastic deformation capacity of the entire structure or specimen is relatively strong, and the performance in the low-cycle repeated load test of the node is good, which enables it to absorb seismic energy effectively. The hysteretic curves of TCSPSW-M-1 and TCSPSW-M-2 specimens are approximately \"anti-S-shaped\". Compared with the bow section, the hysteretic curves have longer sliding sections, reflecting more sliding effects, and the area surrounded by the curves is reduced, which reflects the ductility of the specimens and the ability to absorb seismic energy are poor. The hysteresis curve of the TCSPSW-M-3  
Figure 12: TCSPSW-M-2 specimen loading deformation diagram: (**a**) 2% interlayer displacement Angle, (**b**) 4% interlayer displacement Angle, (**c**) 6% interlayer displacement Angle, (**d**) 8% interlayer displacement Angle. Figure 13: TSPSW-M-1 deformation and failure status: (**a**) Deformation state of specimen under loading (Front view), (**b**) Deformation state of specimen under loading (Side view), (**c**) Deformation state of the specimen after disassembly. specimen is approximately \"diamond-shaped\", which is symmetric and full. It can intuitively reflect that the plastic deformation capacity of the entire structure or specimen is very strong, and it has excellent seismic performance and energy dissipation capacity. As shown in Figure 17, the skeleton curves of each specimen are presented. It can be seen that the skeleton curves of all specimens are symmetric and Z-shaped. By comparing the skeleton curves, it can be observed that the TSPSW-M-1 specimen has the highest  
Figure 16: Comparison of hysteresis curves of each specimen: (**a**) Hysteresis curve of each specimen, (**b**) Hysteresis curve of each specimen (except TSPSW-M-1). Figure 14: TCSPSW-M-3 specimen loading deformation diagram: (**a**) 2% interlayer displacement Angle, (**b**) 4% interlayer displacement Angle, (**c**) 6% interlayer displacement Angle, (**d**) 8% interlayer displacement Angle. Figure 15: TCSPSW-M-3 deformation and failure status: (**a**) Deformation state of specimen under loading, (**b**) Deformation state of the specimen after disassembly. load peak. The load peaks of the other three specimens are much lower than that of the TCSPSW-M-1 specimen. This is because, for the corrugated steel plate shear wall, the corrugations of the steel plate are placed horizontally, and there are no stiffeners at the free ends on both sides, which significantly reduces the stiffness compared to that of a flat steel plate. Among them, the TCSPSW-M-3 specimen has the lowest load peak. As shown in Figure 18, the initial stiffness of the four specimens are 41.96 kN/mm, 4.40 kN/mm, 4.64 kN/mm, and 2.47 kN/mm, respectively. The TSPSW-M-1 specimen has the highest initial stiffness, which is much greater than that of the other three specimens, while the TCSPSW-M-3 specimen has the lowest initial stiffness. The stiffness degradation rate of the three corrugated steel plate specimens (TCSPSW-M-1, TCSPSW-M-2, and TCSPSW-M-3) is much lower than that of the flat steel plate specimen (TPSPSW-M-1). Among the three corrugated steel plate specimens, the stiffness degradation rates of TCSPSW-M-1 and TCSPSW-M-2 are similar. In the middle and late stages of loading, the stiffness of TCSPSW-M-1 degrades more slowly than that of TCSPSW-M-2. Throughout the entire process, the stiffness of TCSPSW-M-3 degrades even more slowly. Figure 19 presents the energy dissipation curves for the first cycle of each loading stage of the four specimens (single-cycle energy dissipation curves). It can be seen that the single-cycle energy dissipation of the TSPSW-M-1 specimen (flat steel plate shear wall) is much higher than that of the other three specimens.