I think you could make a case that the design of the Berkeley Library  was in fact heavily influenced by the design of the new Boston City Hall [competition won in 1962], the latter having been widely publicised, though still under construction, at the time.
The massing is certainly quite similar and the lower corner detail is almost identical.
Unfortunately there's not a lot for the devotees of Brutalism in Dublin, although no shortage of stuff that just brutal.
One hidden gem though is the engineering workshops in the Linen Hall, part of the D.I.T. complex opposite Bolton Street.
the buiding was designed by Byrne, Whelan and Associates . . . it says here