钢制支架

Steel supports are the main components of runway tracks and come in various types and shapes dependent on the rail-mounted equipment such as soleplates and chairplates (baseplates/support plates), steel sleepers and steel columns. The primary function of a steel support is to provide rails with a flat, smooth resting surface which allows for the vertical alignment of a rail system.

Whilst anchor bolts secure the steel supports, specific levelling devices adjust the vertical level.  Depending on the specific industry application and moving equipment (cranes or rolling stock), steel supports are installed on top of a layer of grout or concrete that fills the void between the steel support and the concrete foundation.