Performance study and structural optimization design of disassembled storage devices under simulated combined wind and snow loads

Aiming at the problems of poor durability of detachable ASP (Aluminium Sandwich Panels) storage devices in extreme environments such as high altitude and high cold, this paper proposes a solution to replace ASP with AFCSP (Aluminium Framed Composite Sandwich Panels) in order to enhance the durability and load-bearing capacity of the storage devices in complex environments. The structural response of the two disassembled storage devices under wind and snow loads is systematically analysed and compared by combining experimental verification and numerical simulation. The results show that the load-bearing performance of the existing aluminium sandwich panels meets the design requirements, but the displacements of the AFCSP storage device under wind, snow and combined loads are reduced by 17.71 %, 16.72 % and 12.62 %, respectively, compared with the traditional ASP storage device. Parametric analysis reveals that the thickness of the GFRP face layer contributes more to the performance enhancement, and when its thickness is increased from 1.2 mm to 4.8 mm, the displacement of the top plate under combined wind-snow load is reduced by 58.07 %, while the same increase in the thickness of the latticework reduces it by only 14.33 %. The study shows that the AFCSP effectively improves the extreme environmental adaptability of the storage device through enhanced stiffness and lightweight design, and the research results provide theoretical basis and technical support for the structural optimization and engineering application of the demountable storage device.