8.5.2 Corbel Bearing
If the frame girders bear on column corbels, the length of bearing is greater than 3 inches.
The deficiency is in the length of bearing. Calculate the inter-story drift. Judge the adequacy of the connections to retain their vertical load-carrying integrity at a maximum drift estimated to be equal to the drift calculated with the unreduced demand. Conforming buildings that fail this check shall be placed in SPC 4.