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Practicality of large span structure system portal rigid frame has been widely proved. Meanwhile, the structure is designed flexibly. Internal space is sufficiently utilized by large span. The structure system is particularly suitable for buildings requiring large span and few internal post, such as industrial plants, warehouses, railway stations, supermarkets and other large buildings. Mature and perfect design system can meet building requirements of various structures and scales. Structure width is matched with eave height and roof slope, which is convenient for expansion in the future. |