Determination of heavy steel structure and light steel does not have a uniform standard, a lot of experienced designers and project managers are often not fully understood, said steel structure design, but we can be judged by considering and to some of the data: 1, plant Driving lifting weight: not less than 25 tons, can be considered as a heavy steel. 2, the amount of steel per square meter: not less than 50KG / M2, can be considered a heavy steel. 3, the plate thickness main components: greater than or equal 10MM, light steel less useful. Also steel manufacturers, as well as some reference value: If the cost per square meter, the maximum component weight, the maximum span, structure, higher steel canopies, whether when these heavy steel or lightweight steel can provide empirical data to determine the plant, of course, Now many buildings are light and heavy steel are. But there is something we can be more sure that heavy steel: such as: petrochemical plant facilities, plant plants, large-span stadiums, exhibition centers, senior or super high-rise steel structures. Carport membrane structure designed in the shape which need to comply with the requirements Published: a membrane structure carport architectural features in addition to building and planning should meet the requirements, but also by the shape of the membrane structure designed to determine. Second, should be based on building fire rating and fire protection requirements to select the membrane. Third, the membrane structure fire design should be combined with the characteristics of the membrane structure in accordance with current national standard "building fire safety design specifications" (GBJ16) the relevant provisions of the smoke detection system, fire alarm system, fire hydrant and sprinkler equipment. Fourth, the drainage system membrane structure should be designed according to the shape of the building, structure, form, making installation and other conditions, to ensure smooth drainage and do not form water. Fifth, the membrane structure should be constructed according to the design node waterproof water requirements of the building. Exposed fasteners should be made of stainless steel, aluminum alloy or galvanized steel. Sixth, the diaphragm connections should remain highly watertight steel works should be carried out peel tests. Tile-like arrangement of the diaphragm was advised by the height of the diaphragm cover the lower diaphragm. Seven, membrane structure may shed membrane liner or by adding insulation to improve the structural insulation requirements, with special insulation, building insulation requirements, should adopt a double membrane. Eight, making the membrane structure membrane carport design should consider the impact on architectural acoustics environment. Steel manufacturers, Peng Jian steel (certified), Shanxi steel supplied by Steel Co., Ltd., Dongguan City, Peng Jian. Steel Co., Ltd., Dongguan City, Peng Jian (dgpengjian.cn) quality services and products, and are subject to approval and trust of new and old customers and the industry. Our company is a certified member of the whole network Commercial Union, Commercial Union Support icon on the page, you can talk directly to our customer service staff, to our future cooperation happy!