This is actually how Bane is supposed to be... he basically is a hulk. As has been pointed out, in the comics he paralyzed Bruce Wayne, and in the animated series, Bane was so strong that even Superman was in awe that Batman had survived encounters with him, and it actually took the power of Superman to deal Bane a blow and put him in his place.
So hearing that he's so strong in this film makes me feel a LOT better about the depiction of him, since I didn't think Tom Hardy was that great a choice to play him, from a purely physical standpoint.
Well sure, in the comics and cartoons. But this was depicted as being a much more believable, real world version of the story.
And in that world I would expect Bane to be a bit less cartoonishly powerful than he was here.