## 5 Conclusions  
The performance of the replaceable energy dissipation link with web-connected is experimentally evaluated in this paper. This paper is aimed at a comprehensive and detailed analysis of link performance from the aspects of stress distribution hysteretic curve, skeleton curve, energy dissipation coefficient, stiffness degradation, and angle of rotation. The shear yield area of the link web is developed along the diagonal direction of the web under the action of tension and pressure. When the diagonal direction shear yield area is transfixion, it expands from the diagonal as the baseline to both sides until the whole web shear yield. When the shear stress on the web reaches the shear yield stress, the flange is still in the elastic stage. The tension and pressure on the hysteretic curve are basically symmetric, and the elastic section, yield section and strengthening section can be clearly observed. The cross section size of the link has a great influence on the skeleton curve. However, the stiffening distance and the length of the link have little effect on the skeleton curve. The energy dissipation coefficient decreases as \(\zeta\) increases, the cross section of the link and \(\zeta\) are relatively small, and the energy dissipation coefficient of the connection is relatively high. The energy dissipation coefficient of each specimen is relatively large, which stays between 1.59 and 1.96. The energy dissipation capacity of shear connection is better than that of curved link. The stiffening spacing has little effect on the stiffness degradation amplitude. The replaceable links have good rotational capacity, and the rotation angle of each specimen is 0.16 rad at the minimum. In addition, the failure mode of the finite element analysis and the test results are similar to each other, which can achieve mutual verification. The results show that the web-connected link has good energy dissipation performance.  
In future work, the author will continue to complete some frame system tests and a lot of finite element analysis [20; 50; 51; 52; 53]. A comprehensive parametric computational study is conducted to investigate the main parameters and rules that affect the mechanical properties of links after validating the accuracy of the finite element (FE) modelling approach against previous experiments [54; 55; 56; 57; 58]. Further theoretical analysis need to do to establish the resilience model of the link. Additionally, in  
Figure 17: Stress cloud diagram of each specimen under cyclic load.  
further studies, the optimized design methodology based on the yielding criterion is proposed. From this research, we see the urgent need for crack monitoring and bolt loosening monitoring after a seismic event. However, the strain gauge sensors that were used cannot monitor these types of damages in real time. With the recent development of smart aggregates in structure damage monitoring [59; 60; 61; 62; 63; 64] and the application of piezoceramic transducer transducer-based in health monitoring of steel structures [65; 66; 67; 68], the authors will explore health monitoring and damage detection of eccentric braced steel frames while using the easy-to-operate smart aggregate and easy-to-install piezoceramic patch transducers in the future work.  
[PERSON] designed the experiments. [PERSON] performed the experiments. [PERSON], [PERSON], [PERSON], [PERSON] analyzed the data and wrote the paper.  
This research is supported in part by National NSFC (Natural Science Foundation of China) (51568040, 51368037). Basic Research Foundation of Colleges and Universities of Gansu Province.  
The authors declare no conflict of interest.