Why are the rails made of I-beam?
The rail section of the modern use of "working" shape, divided into rail waist and bottom contact with the wheel rail, the middle rail base. Different routes have different requirements on rail strength, stability and wear resistance. Therefore, rail also has different specifications. Which one should be used on a route, taking into account economic and technical factors?.
H section steel is a kind of economical and economical surface profile (other cold bending thin wall steel, pressed steel plate, etc.). Because of the reasonable cross-section shape, they can make steel more effective and improve the bearing capacity. Unlike ordinary I-beam, the flange of H steel is widened, and the inner and outer surfaces are usually parallel so that it is easy to connect with high strength bolts and other components. The size of the series is reasonable, the model is complete, easy to design and use.
The rails are made of type H steel, one of i-beam.
