What is the life span of steel structure?
This is based on the quality of materials, design, load-bearing base of good or bad, as well as maintenance, protection, geographical location. Of course, the quality is good, careful, high life, generally in fifty years is no problem.
But not to say that 50 will collapse.
The life of steel is infinite (without corrosion). There are many factors affecting the life of steel structures, in which the reference period of live load is 50 years. So the design cycle is 50 years. The most important special projects in the country can be listed for 100 years.
