Architectural Trend: Beamless Arched Roofs Gain Popularity Shijiazhuang Pengding Steel Structure Engineering Co., Ltd., opts for beamless arch roofs for factory buildings, warehouses, and breeding facilities. Beamless arched roofs were introduced to China in the 1990s, featuring a steel arch shell formed by high-strength color steel plates without beams or rafters. These roofs can span up to 32 meters and have a height of over 6 meters, significantly increasing the internal space. Their clean, orderly appearance, grandeur, and dust-resistant structure make them especially suitable for public places such as sanitation and food facilities, badminton courts, factory extensions, railway sheds, and warehouses. They are also favored for enhancing the corporate image. The total construction cost is low due to the lightweight nature of the roofs, which require fewer columns for support. The standard 6-meter column spacing can be extended to 9-12 meters, reducing the number of columns by 1/3 to 1/2 (each column requiring two piles, saving approximately 6,000 yuan). This significantly lowers the overall cost; beamless arch roofs are压制 using ultra-high-strength color steel plates.