1. Arch205 building construction wall systems- Steel

2. Structural steel framing
Conventional steel-framed structures are constructed of hot-rolled beams and columns, open-web joists, and metal decking.
Since structural steel is difficult to work on site, it is normally cut, shaped, and drilled in a fabrication shop according to design specifications; this can result in relatively fast, precise construction.

3. The most frequently used section for columns is the wide-flange (W) shape.
It is suitable for connections to beams in two directions, and all of its surfaces are accessible for making bolted or welded connections.
Other steel shapes used for columns are round pipes and square or rectangular tubing.
Column sections may also be fabricated from a number of shapes or plates to fit the desired end-use of a column.

4. Curtain walls on steel frames
The columns in a steel frame structure transfer the gravity and lateral loads down to the foundation system, so the exterior walls are essentially nonloadbearing curtain walls.
There are three basic relationships that may be established between a structural steel frame and the curtain wall or cladding it supports.
Column in front of the wall plane
Column within the wall plane
Column behind the wall plane

6. Steel beam connections

7. Steel column splices connections

8. Steel column base plate

9. Light gauge steel framing
Light-gauge steel studs are manufactured by cold-forming sheet or strip steel.
The cold-formed steel studs can be easily cut and assembled with simple tools into a wall structure that is lightweight, noncombustible, and damp-proof.