In the steel structure of steel purlin 160*60*20*2.5 is what mean
Stands for 160mm height, 60mm width, and 2.5mm thickness, and 20mm is the size of two small ears
Channel steel is a strip of steel with a cross section. Section steel with groove shape.
Steel structure is mainly made of steel material, and it is one of the main types of building structure. The structure is mainly composed of steel beams and steel plates, such as steel beams, steel columns, steel trusses and so on. Each component or component is usually connected with welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, stadiums, super high-rise and other fields.
The horizontal component roof length distribution, located in the main rafters, support secondary rafters. The ancient houses used to stir up the rafters, roof bars made of, is one of the main components of the house, also called the boat (or sub truss northern dialect).
