(A) General. The seismic hazard classifications in this section are hereby established. Each building within the scope of this subchapter shall be placed in one such classification by the Building Official.
('63 Code, § 9-7.104.1)
(B) High hazard building. Any unreinforced masonry building having one or more of the following conditions present:
(1) An occupant load of 300 or more.
(2) A foundation, all or part, of unreinforced masonry, including footings, piers, stemwalls, and the like, which places any part of the mudsill (or equivalent) of the building 12 inches or more above interior or exterior grade at any point. All measurements shall be vertical.
(3) Wall(s) constructed of unreinforced masonry and 15 feet or more in height, all or part, measured vertically from the bottom surface of the wall base (equivalent to sole plate) to the top surface of the wall (equivalent to top plate).
(4) Parapet wall(s) constructed of unreinforced masonry; and 24 inches or more in height, all or part, measured vertically from the uppermost part of the parapet to the top surface of the contiguous subroof deck; or in deteriorated and/or unstable condition, regardless of wall height, as determined by the Building Official.
(5) More than one story in height as determined in accordance with UBC Section 220.25, including buildings otherwise classified as Low Hazard or Medium Hazard Buildings.
(6) In a physical condition, as determined by the Building Official, or by the responsible engineer or architect with the concurrence of the Building Official, to be a hazardous building and dangerous to human life as defined by UBC 102.
(7) An essential building.
('63 Code, § 9-7.104.2)
(C) Medium board building. Any one-story unreinforced masonry building, not classified as a high hazard building, having an occupant load between 100 and 299.
('63 Code, § 9-7.104.3)
(D) Low hazard building. Any one-story unreinforced masonry building, not classified as a high or medium hazard building, having an occupant load of less than 100.
('63 Code, § 9-7.104.4)
(Ord. 504-C.S., passed 11-21-89; Am. Ord. 608-C.S., passed 6-18-96)