Application characteristics of I-section steel
Whether I-shaped steel is ordinary or light, because the section size is relatively high and narrow, the moment of inertia of the two main axes of the section is quite different, so it can only be directly used for the members bent in the plane of their web or form lattice stress members. It is not suitable for axial compression members or members with bending perpendicular to the plane of the web, which makes it very limited in the scope of application. I-beam is widely used in buildings or other metal structures.
Due to the relatively high and narrow section size of ordinary I-beam and light I-beam, the moment of inertia of the two main axes of the section is quite different, which makes it very limited in the scope of application. The use of I-beam shall be selected according to the requirements of design drawings.
In the structural design, the selection of I-beam should be based on its mechanical properties, chemical properties, weldability, structural size, etc.