Steel Single Layer Reticulated Shell Dome is a large-span spatial structural system constructed from lightweight, high-strength steel, formed by assembling regular or free-form triangular or quadrilateral grid units into a self-supporting curved shell that combines structural efficiency with architectural expression. The system uses steel tubes or profiles as primary members, connected through welded spherical nodes, bolted spherical nodes, or tubular intersections to create a stable spatial grid system, capable of spanning column-free spaces ranging from 15 meters to over 200 meters in diameter. Its structural weight is only 1/3 to 1/5 that of traditional concrete domes, while offering excellent seismic and wind resistance performance.

The design of the reticulated shell dome relies on parametric modeling and finite element analysis to accurately simulate load distribution and optimize member cross-sections, ensuring structural safety while maximizing visual transparency. The surface can adopt open grids (filled with ETFE membranes, glass, or photovoltaic panels) or closed metal/composite cladding, catering to diverse functional requirements such as sports arenas, transportation hubs, and exhibition centers. During construction, techniques like ground assembly, integral lifting, or segmented hoisting are employed, significantly reducing project timelines and minimizing high-altitude work.

This structural system is particularly suitable for public buildings requiring iconic forms and efficient spatial utilization, such as planetariums, botanical garden greenhouses, and airport terminal halls. Its exposed structural grid not only showcases industrial aesthetic tension but also integrates lighting, acoustic, and intelligent control systems, achieving seamless integration of architecture, structure, and electromechanical services. The Steel Single Layer Reticulated Shell Dome redefines the lightweight and technologically poetic expression of large-span spaces through the philosophy of “structure as architecture.”