Steel beam, steel brace and steel purlin. What is the difference
Support, roof panel; steel purlin are generally located in the girder. The steel beam is located on the steel column.
Steel is generally out of the upper steel columns, steel support is generally out of steel column, Rachel and support steel column; steel purlin is generally below the roof panel
Different steel beam, steel brace and steel purlin position, the strength of the material requirements are different, which plays in the role of different engineering.
