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Prior Chicago Building Code
BUILDING CODE AND RELATED EXCERPTS OF THE MUNICIPAL CODE OF CHICAGO
DIVISION 1 - ADMINISTRATION
DIVISION 2 - DEFINITIONS
DIVISION 3 - USE AND OCCUPANCY CLASSIFICATIONS
Subdivision 302 - Classification
Subdivision 303 - Assembly
CHAPTER 13-84 ASSEMBLY UNITS
13-84-010 General requirements.
13-84-020 Capacity of schools.
13-84-030 Frontage requirements.
13-84-040 Special height limitations.
13-84-050 Special enclosures and separations.
13-84-060 Special fire-resistive requirements.
13-84-070 Definitions.
13-84-080 Construction requirements - Type 1 stages.
13-84-090 Construction requirements - Type 2 stages.
13-84-100 Stage vents - Type 1 stages.
13-84-110 Proscenium opening - Type 1 stages.
13-84-120 Projection rooms.
13-84-130 Bowling alleys.
13-84-140 Planning requirements for Type I schools.
13-84-150 Planning requirements for Type III schools.
13-84-160 Special exit requirements.
13-84-170 Minimum number of exits.
13-84-180 Width of exits.
13-84-190 Location of exits.
13-84-200 Exit connections.
13-84-210 Exit courts and exit passageways.
13-84-220 Waiting spaces.
13-84-230 Aisles and seating.
13-84-240 Railings.
13-84-250 Ramps and steps.
13-84-260 Exits from stage block.
13-84-270 Fixed seating.
13-84-280 Schools for handicapped children - Elevator requirements.
13-84-290 Accessibility for handicapped.
13-84-300 Exhibition areas in excess of 10,000 square feet.
13-84-310 Automatic smoke and heat vents - Requirements for topmost occupied levels.
13-84-320 Noncombustible draft curtains - Where required.
13-84-330 Automatic smoke and heat vents - Requirements for lower floor levels.
13-84-331 Special requirement for nightclubs and restaurants.
13-84-340 Exhibition area minimum aisle width.
13-84-350 Smoke detectors.
13-84-351 Temporary display booths.
13-84-360 Storage of combustible containers.
13-84-370 Open plan schools - Individual plan floor areas.
13-84-380 Stair enclosures.
13-84-390 Fire guard requirements.
13-84-400 Floor plan diagram to be submitted to department of buildings.
13-84-410 Building capacity - Signs to be posted.
13-84-420 Building capacity - Approval required.
13-84-430 Exit and aisle regulations.
CHAPTER 13-88 OPEN AIR ASSEMBLY UNITS
Subdivision 304 - Business
Subdivision 306 - Factory
Subdivision 307 - High-Hazard
Subdivision 308 - Institutional
Subdivision 309 - Mercantile
Subdivision 310 - Residential
Subdivision 311 - Storage
Subdivision 312 - Utility and Miscellaneous
DIVISION 4 - SPECIAL DETAILED REQUIREMENTS BASED ON USE AND OCCUPANCY
DIVISION 5 - GENERAL BUILDING HEIGHTS AND AREAS
DIVISION 6 - TYPES OF CONSTRUCTION
DIVISION 7 - FIRE-RESISTANCE-RATED CONSTRUCTION
DIVISION 8 - INTERIOR FINISHES (NA)
DIVISION 9 - FIRE PROTECTION SYSTEMS
DIVISION 10 - MEANS OF EGRESS
DIVISION 11 - ACCESSIBILITY
DIVISION 12 - INTERIOR ENVIRONMENT
DIVISION 13 - ENERGY EFFICIENCY AND ENVIRONMENTAL PROTECTION
DIVISION 14 - EXTERIOR WALLS (NA)
DIVISION 15 - ROOF ASSEMBLIES AND ROOFTOP STRUCTURES (NA)
DIVISION 16 - STRUCTURAL DESIGN
DIVISION 17 - STRUCTURAL TESTS AND SPECIAL INSPECTIONS
DIVISION 18 - SOILS AND FOUNDATIONS
DIVISION 19 - CONCRETE
DIVISION 20 - ALUMINUM (NA)
DIVISION 21 - MASONRY
DIVISION 22 - STEEL
DIVISION 23 - WOOD
DIVISION 24 - GLASS AND GLAZING (NA)
DIVISION 25 - GYPSUM BOARD AND PLASTER (NA)
DIVISION 26 - PLASTIC (NA)
DIVISION 27 - ELECTRICAL
DIVISION 28 - MECHANICAL SYSTEMS
DIVISION 29 - PLUMBING SYSTEMS
DIVISION 30 - ELEVATORS AND CONVEYING SYSTEMS
DIVISION 31 - SPECIAL CONSTRUCTION (NA)
DIVISION 32 - ENCROACHMENTS INTO THE PUBLIC RIGHT-OF-WAY
DIVISION 33 - SAFEGUARDS DURING CONSTRUCTION
DIVISION 34 - EXISTING STRUCTURES
DIVISION 35 - REFERENCED STANDARDS

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Subdivision 303 – Assembly
CHAPTER 13-84
ASSEMBLY UNITS
13-84-010   General requirements.
13-84-020   Capacity of schools.
13-84-030   Frontage requirements.
13-84-040   Special height limitations.
13-84-050   Special enclosures and separations.
13-84-060   Special fire-resistive requirements.
13-84-070   Definitions.
13-84-080   Construction requirements – Type 1 stages.
13-84-090   Construction requirements – Type 2 stages.
13-84-100   Stage vents – Type 1 stages.
13-84-110   Proscenium opening – Type 1 stages.
13-84-120   Projection rooms.
13-84-130   Bowling alleys.
13-84-140   Planning requirements for Type I schools.
13-84-150   Planning requirements for Type III schools.
13-84-160   Special exit requirements.
13-84-170   Minimum number of exits.
13-84-180   Width of exits.
13-84-190   Location of exits.
13-84-200   Exit connections.
13-84-210   Exit courts and exit passageways.
13-84-220   Waiting spaces.
13-84-230   Aisles and seating.
13-84-240   Railings.
13-84-250   Ramps and steps.
13-84-260   Exits from stage block.
13-84-270   Fixed seating.
13-84-280   Schools for handicapped children – Elevator requirements.
13-84-290   Accessibility for handicapped.
13-84-300   Exhibition areas in excess of 10,000 square feet.
13-84-310   Automatic smoke and heat vents – Requirements for topmost occupied levels.
13-84-320   Noncombustible draft curtains – Where required.
13-84-330   Automatic smoke and heat vents – Requirements for lower floor levels.
13-84-331   Special requirement for nightclubs and restaurants.
13-84-340   Exhibition area minimum aisle width.
13-84-350   Smoke detectors.
13-84-351   Temporary display booths.
13-84-360   Storage of combustible containers.
13-84-370   Open plan schools – Individual plan floor areas.
13-84-380   Stair enclosures.
13-84-390   Fire guard requirements.
13-84-400   Floor plan diagram to be submitted to department of buildings.
13-84-410   Building capacity – Signs to be posted.
13-84-420   Building capacity – Approval required.
13-84-430   Exit and aisle regulations.
13-84-010  General requirements.
   Every building or part of a building hereafter designed, erected, altered or converted for the purposes of an assembly unit as defined in Section 13-56-070 shall comply with the special provisions of this chapter and also with the general provisions of this Code pertaining to buildings, including, but not limited to, the following:
Chapter 13-56 Classifications of Buildings by Occupancy.
   Section 13-56-230 Mixed occupancy.
   Section 13-56-300 Occupancy content.
Chapter 13-60 Classification of Buildings by Construction Type.
Chapter 13-116 Fire Limits – Location Limitations.
   Sections 13-116-040 and 13-116-050 Location on property.
   Sections 13-116-080 to 13-116-130 Inclusive. Limitations within fire limits.
Chapter 13-48 Height and Area Limitations.
   Section 13-48-010 Height limitations.
   Section 13-48-050 Area limitations.
   Section 13-48-100 Mixed occupancy.
Chapter 15-8 Fire-Resistive Requirements.
   Section 15-8-010 Fire walls.
   Section 15-8-070 Exterior walls.
   Sections 15-8-120, 15-8-190, 15-8-240 Enclosures and separations.
   Section 15-8-250 Partitions.
   Section 15-8-280 Exterior trim.
   Section 15-8-330 Roof coverings.
   Section 15-8-370 Interior wall and ceiling finish and trim.
   Section 15-8-450 Flooring.
   Section 15-8-510 Roof structures.
   Section 15-8-570 Firestopping.
Chapter 18-28 Chimneys, Flues and Vents.
Chapter 15-16 Fire Protection Equipment.
Chapter 15-12 Fire-Resistive Materials and Construction.
Chapter 13-160 Exit Requirements.
   Section 13-160-030 Types of exits.
   Section 13-160-050 Minimum number of exits.
   Section 13-160-060 Arrangement and location of exits.
   Section 13-160-110 Travel distance to exits.
   Section 13-160-170 Width of exits.
   Section 13-160-230 Outside exits.
   Section 13-160-240 Doors.
   Section 13-160-290 Stairways.
   Section 13-160-360 Smokeproof towers.
   Section 13-160-430 Ramps.
   Section 13-160-480 Horizontal exits.
   Section 13-160-580 Exterior stairs.
   Section 13-160-630 Fire escapes.
   Section 13-160-660 Exit lighting.
   Section 13-160-700 Exit signs.
Chapter 13-52 Minimum Design Loads.
Chapter 13-120 Materials, Methods and Tests.
Chapter 13-132 Foundations.
Chapter 13-140 Masonry Construction.
Chapter 13-144 Wood Construction.
Chapter 13-136 Concrete Construction.
Chapter 13-148 Steel and Metal Construction.
Chapter 13-124 Safety Requirements.
Chapter 13-124 Safeguards During Construction.
Chapter 13-128 Use of Public Property.
Chapter 13-196 Existing Buildings.
Chapter 18-28 Heating.
Chapter 18-28 Ventilation.
Chapter 13-172 Light And Ventilation.
Chapter 18-29 Plumbing.
Chapter 18-29 Sanitation Requirements.
Title 14C Conveyance Devices.
Title 14E Electrical Requirements.
(Prior code § 54-1; Amend Coun. J. 6-14-95, p. 2841; Amend Coun. J. 4-29-98, p. 66679, § 2; Amend Coun. J. 10-17-09, p. 72419, § 15; Amend Coun. J. 11-9-16, p. 36266, § 18; Amend Coun. J. 9-6-17, p. 55278, Art. II, § 26; Amend Coun. J. 3-28-18, p. 74459, Art. II, § 12)
13-84-020  Capacity of schools.
   The total capacity of a school shall be determined in accordance with the occupancy content factors established in Section 13-56-310, except that rooms not used or used only occasionally by students shall not be included in computing each total capacity. Such rooms and spaces include the following:
   Assembly rooms and gymnasiums;
   Cafeterias and lunchrooms;
   Locker, toilet and storage rooms;
   Corridors and other circulation space;
   Service and equipment rooms.
(Prior code § 54-2)
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