IBC 2018 Shaft location at elevator and interior exit stair

[redbird11]

In the attached drawing, do the interior exit stair and the elevator require their own separate shaft enclosures? Or could I draw the line for the enclosure where I have indicated an orange line? 8 story office building under IBC 2018.

 

[RLGA]

In the attached drawing, do the interior exit stair and the elevator require their own separate shaft enclosures?

Yes. See Section 1023.4, third paragraph.

 

[classicT]

Adding on to Ron, also make note of Section 1016.2.