When we consider that building is braced or unbraced?

Braced column: -

1. A column may be considered braced in a given plan if lateral stability of the structure as a whole is provided by walls or bracing.

2.These coulmn are not designed to resist lateral load

3.These coulmn have zero value of sway force

4.structural system having bracing is most used for the important structure.

Unbraced column: -

1. A column may be considered unbraced in a given plan if lateral stability of the structure as a whole is provided by columns only.

2. In unbraced coulmn the lateral load like wind load earthquake load are resist by itself coulmn

3.these coulmn are subjected to sway

4.Most of thd Rcc member are designed for unbraced coulmn.