Because all parts of H steel are arranged in a right angle, the H steel has the advantages of strong bending ability, simple construction, cost saving and light weight, and has been widely used in all directions.
The flange of H steel is parallel or nearly parallel to the inner and outer sides of the flange, and the ends of the flanges are at right angles, hence the name of the parallel flange I-beam. The web plate of H steel is smaller than the ordinary i-i-steel with the same height as that of the web, and the width of the flange is bigger than that of the web. The shape modulus, the moment of inertia and the corresponding strength of H steel are obviously better than that of the same heavy I-beam.
In the metal structure required by the galvanized pipe of Ji'nan, whether it is subjected to bending moment, pressure load and eccentric load, it shows its superior performance. It can greatly improve the bearing capacity and save 10% ~ 40% of metal than ordinary I-steel. H steel has wide flange, thin web, many specifications and flexible use. It can save metal 15% to 20% for various truss structures. As the edge of the flange is parallel to the outer side of the flange, the edge ends in a right angle, which is easy to assemble into various components, thus saving about 25% of the workload of welding and riveting, which can greatly speed up the construction speed of the project and shorten the time limit for the work.
Because of the above advantages, H steel is widely used, mainly used in various civil and industrial building structures, various large span industrial buildings and modern high-rise buildings, especially the industrial buildings with frequent earthquake activities and high temperature working conditions; large bridges with large bearing capacity, good cross section stability and large span are required.
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