Anchorage of beam reinforcement in seismic resistant reinforced concrete frames.

Abstract

This report is concerned with the behaviour of beam-column Joints of reinforced concrete frames when subjected to high intensity lateral cyclic loading such as that due to earthquake.

An experimental program was conducted to investigate the behaviour of the joints of two storey buildings. The design parameters examined were the methods of anchoring the primary reinforcing, of the beam within the column and the amount of transverse shear reinforcement. within the joint region. All three unite were subjected to the same program of static cyclic loading and the experimental moment-rotation characteristics are compared.

The joints of all three specimens proved to be inadequately reinforced to resist the large joint shears present under seismic loading conditions.