Tied columns
A column in which the longitudinal bars are
tied together with separate lateral reinforcement which are also
known as ties at the specific interval along with the column height. The
longitudinal Steel bars fail by buckling outward between ties and the column
failure occur suddenly.
Spiral Columns
Spiral columns are cylindrical
in the shape with the continuous helical bars which are wrapped around the
column. The reinforcement which is used in the spiral column is also
known as helical reinforcement or spiral reinforcement. The Spiral
reinforcement helps to support in the transverse direction.
composite columns
Composite
columns are the combination of two traditional building materials, construction
steel and concrete. They gives good architectural look, and was used in old
times. Since composite columns were usually built behind steel columns and
reinforced concrete columns, their design approach was not based on steel or
concrete construction.
Modern
columns are made of reinforced steel, concrete and reinforcing steel. methods.
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