Firemac
The ones i have seen tend to be outside an exit door so they have direct acces to a place of safety. I would suggest that if a premises set up a smoking area that is landlocked then the door that they have gone through would not be required for MoE. However if it can hold that many people i would probably expect an alaternative exit from the area as that many people trying to get back in and then out again in an emergency is asking for trouble.
If a smoking area, place of assembly, is on an escape route, eg veranda, and can hold 60+ persons, does it need two escape routes? If one means of escape is back through the way one came out, and it was via an outward opening panic bolted door, will the door need to double swing?
Argue.
Yes this a toughie NT
In theory I'd say no, purely based on the question "could you have a fire that could start / spread so quickly that it would cut off the final exit (the bolted gate you mentioned) in that area, forcing the smoking patrons to re-enter the club?"
To me if the answer is yes then you have problems which extend way beyond just the smoking area, it would make me suspicious of the standard of class of surface spread and materials used in the whole club.
Converseley however you could argue that human behaviour would probably mean patrons would re-enter the club and then use the same route they came in to evacuate and therefore would you want a double swing door by virtue of that.
I guess the easy answer is to put in a double swing door - it covers all eventualities doesnt it!