I-beam, also known as steel beam, is a long piece of steel with an i-shaped section. I - beam is divided into ordinary i-beam and light i-beam, H - beam three kinds. I-beam is widely used in various construction structures, Bridges, vehicles, supports, machinery and so on.
Ordinary i-beam, light i-beam flange is a variable section on the web section thick, thin outside; H section: the flange of HW HM HN HEA HEB HEM is of equal section
Ordinary i-steel and light i-steel have formed the national standard, ordinary 10# i-steel is equivalent to the international I100 (also for example 10# channel steel is equivalent to channel steel U100) (due to the different standards implemented by different countries, their specifications are slightly different)
Scope of application:
Ordinary i-steel, light i-steel, due to the size of the section are relatively high, narrow, so the two main sleeve of the section of the moment of inertia difference is large, therefore, generally can only be directly used in the web plane bending members or its composition of lattice structural members. Axial compression members or members perpendicular to the web plane and bending are not suitable, which makes their application scope is very limited. The use of I steel should be selected according to the requirements of the design drawings.
