Question

The lateral ties in a reinforced concrete rectangular column under axial compression are used to

• A. avoid the buckling of the longitudinal steel under compression
• B. provide adequate shear capacity
• C. provide adequate confinement to concrete
• D. reduce the axial deformation of the column

Answer 1

The correct option is A avoid the buckling of the longitudinal steel under compression

(i) The primary pupose of transverse reinforcement to hold the vertical bars in position so that individual bars can not buckle outwards & split the concrete
(ii) And, secondary purposes are

• to confine the concrete in the 'core' thus improving ductility & strength.
• to provide resistance against shear & torsion, if required.

Hence, the option (a) is correct.