DOOR ARRANGEMENT
The present invention relates to an arrangement pertaining to a revolving door for installing in a building (1). The arrangement comprises partly a rotor (10) with a two-winged door arrangement adapted to regulated rotation about a vertical rotation axis (20) in a passage space (30), which rotor has at least one openable portion (11) allowing passage through the wings in an evacuation situation and has at the free end of each wing an arcuate door panel (12) with its external convex surface (13) at a substantially constant radial distance r from the rotation axis (20) of the rotor; and partly two wall sections (40) which delineate said passage space, are arranged at a distance from one another and each extend from their respective side of a first entrance aperture (50) which they jointly delineate to their respective side of a second entrance aperture (50') which they jointly delineate. Openable evacuation portions (41, 41') are further disposed in at least one of the wall sections (40), allowing passage through the passage space (30) in an evacuation situation even if the entrance apertures (50, 50') are closed by the rotor (10), and at least one of said openable evacuation portions (41, 41') is disposed in a portion of the wall section 40 which is rectilinear in horizontal cross-section.