Primary Members

Primary member, which is the member whose own failure will lead to the failure of related members and endanger the work of the load-bearing structural system, the primary load-bearing structure of a building made primarily of steel. Primary steel structures typically include the steel columns, beams and other members that support the weight of the building and transfer it to the foundation. Steel structure engineering is a kind of structural form with steel beam, steel column, steel truss and other members as the primary structural steel members, which mainly includes steel sections, steel trusses, etc., in which the members or members are generally welded to each other.  The shape and size of these structural steel members vary based on the application and requirements. The frame is erected by bolting the end plates of connecting sections together. All the steel sections and welded plate members are designed in accordance with the applicable sections as per the latest international codes and standards to meet all the customer specifications.

Primary structural steel members are typically designed and fabricated off-site and then transported to the construction site for assembly. Steel is a common material for primary structures because it is strong and durable and can be fabricated to exact specifications. In addition, prefabricated steel structures allow for quick completion of construction needs, resulting in efficient steel building completion. The primary steel structures are usually used in buildings such as skyscrapers, bridges, stadiums and industrial warehouses.

UnionSSM, as a professional fabricated steel structure manufacturer, provides primary structural steel members and secondary structural members. Those who want to know more about primary steel structures can contact us for professional guidance. 


different types of steel column based on cross section or shape

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