## 3 Experimental Results and Discussion
### Hysteretic Performance  
By applying low cycle reciprocating load to the replacement energy dissipation link of the web plate connection type, the load displacement curve of the link under cyclic load is obtained, as shown in Figure 11.  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Position** & **No.** & **Normal Stress (Mpa)** & **No.** & **Normal Stress (Mpa)** \\ \hline \multirow{8}{*}{Flange} & 1 & 26.05 & 9 & \(-\)0.29 \\  & 2 & 140.16 & 10 & \(-\)94.31 \\  & 3 & 101.98 & 11 & \(-\)78.56 \\  & 4 & 69.07 & 12 & \(-\)92.90 \\  & 5 & \(-\)109.66 & 13 & 108.65 \\  & 6 & \(-\)161.77 & 14 & 137.93 \\  & 7 & \(-\)85.43 & 15 & 111.48 \\  & 8 & \(-\)11.12 & 16 & 17.77 \\ \hline \multirow{2}{*}{Stiffening rib} & 17 & \(-\)27.67 & 18 & \(-\)28.13 \\  & 19 & \(-\)36.96 & 20 & \(-\)35.75 \\ \hline \multirow{2}{*}{**Position**} & **No.** & **Normal stress (Mpa)** & **Normal stress (Mpa)** & **Shear stress (Mpa)** \\ \hline \multirow{8}{*}{Web} & 1 & 144.11 & \(-\)180.75 & 162.43 \\  & 2 & 133.66 & \(-\)118.65 & 126.16 \\  & 3 & 182.82 & 75.11 & 53.85 \\ \cline{1-1}  & 4 & 154.04 & \(-\)109.90 & 131.97 \\ \cline{1-1}  & 5 & 93.14 & \(-\)91.12 & 92.13 \\ \cline{1-1}  & 6 & 72.49 & \(-\)147.20 & 169.79 \\ \cline{1-1}  & 7 & \(-\)19.99 & \(-\)12.12 & - \\ \hline \hline \end{tabular}
\end{table}
Table 4: The stress value of RSL-1 when D = \(-\)18 mm (0.0847 rad).  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Position** & **No.** & **Normal Stress (Mpa)** & **No.** & **Normal Stress (Mpa)** \\ \hline \multirow{8}{*}{Flange} & 1 & 29.69 & 9 & \(-\)16.16 \\  & 2 & 407.15 & 10 & \(-\)107.64 \\  & 3 & \(\geq\)425 & 11 & \(-\)57.15 \\  & 4 & \(\geq\)425 & 12 & \(\leq\)\(-\)425 \\  & 5 & \(\leq\)\(-\)425 & 13 & \(\geq\)425 \\  & 6 & \(\leq\)\(-\)425 & 14 & \(\geq\)4 As can be concluded from the above figures:  
1. The hysteretic curve shape roughly displays spindle shape, and it can be observed from the figure the hysteretic curve has three sections, including elastic section, yield section, and reinforcement  
Figure 11: Hysteretic response of specimens.  
section. A certain displacement of rigid body has occurred during the test due to the loading equipment, resulting in a certain pinching of hysteresis curve.
2. The mechanical properties of energy dissipation links are consistent under the action of tensile and compressive loads. The hysteretic curves are symmetrical in tension and pressure, and the hysteretic curves take the shape of central symmetry.
3. When the load is initially applied, the curve is a straight line under the action of tension and pressure. When the displacement and load increase, the link starts to enter the yield from the elastic stage. The stiffness of the specimen decreases and the link produces plastic deformation. The area of hysteresis loop gradually increases with the increase of load, and the energy dissipation capacity of the link is gradually developed. The energy dissipation is stable at this stage. When the displacement reaches the limit value, the bearing capacity of the energy-dissipated link begins to decrease and the area of hysteresis loop reaches its maximum.