The objective of this study is to develop and evaluate a new type of energy dissipation box damper, designed for use in seismic-resistant structures. This damper utilizes natural granular materials, primarily sand, as the key damping mechanism. The research was conducted through a series of experiments to investigate the mechanical properties of the damper under different operational conditions. The study focused on the effectiveness of sand as a damping agent, the examination of various damper configurations including both single and dual silhouette models, and the assessment of damper performance under variable testing rates. It was found that sand, with its fine and smooth particles, offers excellent damping properties. The single silhouette model, in particular, demonstrated improvements in stability, load distribution, and energy dissipation efficiency when used with sand. The damper showed robust hysteresis behavior, proving its reliability under high-load scenarios. Additionally, the influence of testing rates on the damping behavior was significant, with higher rates improving the damping ratio in sand-based systems. The LuGre model was applied to provide a mathematical representation of the experimental findings; however, some discrepancies were noted, attributed to the model's limitations and the experimental uncertainties. The results highlight the damper's potential as an economical alternative for seismic resistance, leveraging the low cost and simplicity of natural materials. The design of the damper focuses on simplicity and ease of maintenance, making a significant contribution to the progress in earthquake mitigation technologies.

来源平台：JOURNAL OF BUILDING ENGINEERING