I-shaped beams are hollow web members. For high-strength materials, hollow web members are better than solid web members in terms of weight, material, and labor saving. This cross-sectional design mainly uses the flange farthest from the centroid to resist bending moments (because the farther the flange is, the greater the moment of inertia), and mainly uses the web to resist shear. As for the inconvenience in making it, it can be solved by factory or molding. Saving materials, labor, and time is efficiency.
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What is the difference between 202 stainless steel and 304 stainless steel?
202 stainless steel coils are basically a type of 200 series stainless steel, and the national standard model is 1Cr18Mn8Ni5N. 200 series 304 stainless steel is a low-nickel, high-manganese 304 stainless steel with a nickel content and a manganese content of about 8%. It is a nickel-saving 304 stainless steel. Chemical substances include iron, manganese, aluminum, sodium, carbon, limestone, carbon dioxide, bromine, and the density is 7.938 kg/cubic decimeter.
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Characteristics of corrugated board
Corrugated board, also called profiled board, is made of color-coated steel sheets, galvanized sheets and other metal sheets that are rolled and cold-bent into various corrugated profiled boards. It is suitable for industrial and civil buildings, warehouses, special buildings, and large-span buildings. Roofs, walls and interior and exterior wall decoration of steel structure houses. It has the characteristics of light weight, high strength, rich color, convenient and quick construction, earthquake resistance, fireproof, rainproof, long life, maintenance-free, etc., and has been widely promoted and used.
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