AA2016Building Code Basics Feb with additional material
- 1. Building Code &Technology 2516:30pm -9:30pm Thomas M. Beverly, AIA, CSI, NCARB Interiors Depart of the Art Institute- Winter Quarter 2015-2016 Virginia Beach , Virginia Instructor 1 tbeverly7@verizon.net 757-7613070 Office Hours: 3-4 Tues.
- 2. What you need to know to review a building : • Use Groups (O) • Construction Type (C) • Access (A) and Egress (E) • Which code? The authority having Jurisdiction International Building Code (ICC). Get to know the building departments in your area of practice. 2
- 3. Use/Occupancies GroupsThe International Building Code categorizes buildings according to their primary uses, or occupancies. Primary use is a key factor – along with occupancy load (number of people in a building and its various rooms) and construction type – in determining the potential for loss of life in a fire emergency; a higher degree of risk is associated with stricter regulations. In cases where a building or building complex includes more than one occupancy – not uncommon today – Building Codes typically either require a clear fire separation between those programmatic spaces or they apply the stricter (or strictest) set of regulations to the whole. Table 503 of the 2012 International Building Code. • Assembly A-1 thru A-5 • Residential R-1, R-2,R-3, • Institutional I-1, I-2, I-3 • Educational E • Business B • Mercantile M • Manufacturing F-1, F-2 • Hazardous H-1,H-2,H-3, H-4, and H-5 (lowest hazard to highest) • Storage S-1, S-2 ( parking structures) A project is designated an ASSEMBLY occupancy if it brings together a large group of people and concentrates them in one or more spaces of the building. We might think of any building with more than 50 people in one particular space to be designated as Assembly; most civic and cultural buildings fit in this category. Because of their increased potential for loss of life in an emergency, Assembly buildings are subject to stricter safety regulations than most other uses. A project is designated a RESIDENTIAL occupancy when people are expected to sleep in the building (with a few exceptions noted in the paragraph below). Residential use is divided into different subcategories depending on the number of residents and how they occupy the building. An INSTITUTIONAL occupancy describes buildings, such as hospitals and prisons, whose occupants have mobility restrictions; subcategories of Institutional use are defined in relation to occupants’ ability to save themselves in an emergency. A project is considered to have BUSINESS occupancy when it provides for economic activities that do not fit into other more specific categories. Uses as diverse as office buildings, outpatient clinics, and scientific laboratories (so long as they do not store hazardous materials) belong to this category. B,M,S,U,F-1,F-2,H EDUCATIONAL occupancy describes buildings that contain classrooms for children up through the 12th grade (which we typically call elementary, secondary, and high schools in the US system), as well as some day care facilities. College and university buildings are not included in this occupancy type; they are typically classified as Business (B) or Assembly occupancy. A project may be designated a MERCANTILE occupancy if it is intended to house retail activities (and does not store large quantities of hazardous materials). OTHER USES Building codes also recognize a few other occupancies, such as INDUSTRIAL (e.g., manufacturing facilities), STORAGE (e.g., warehouses), HIGH HAZARD (buildings where hazardous materials are stored), and UTILITY (primarily uninhabited structures not described by other occupancies). 3
- 4. Use Group 4 Snohetta- Oslo , Norway Assembly A1 Theaters Movie TheatersSymphony and Concert Halls Television and Radio Studios admitting an audience Assembly uses, usually with fixed seating, intended for the production and viewing of the performing arts or motion pictures
- 5. Use Groups 5 Assembly A2 Restaurants Banquet Halls Night Clubs Taverns and bars Assembly uses intended for food and/or drink consumption
- 6. Use Group 6 Assembly A3 Amusement Arcades Art Galleries Bowling Alleys Community Halls Courtrooms Dance Halls Exhibition Halls Gymnasiums Indoor swimming pools Indoor tennis courts Lecture Halls Libraries Museums Assembly uses intended for worship, recreation or amusement and other assembly uses Tel Aviv Museum of Art / Preston Scott Cohen
- 7. Use Group 7 Assembly A4 Arenas Skating Rinks Swimming Pools Tennis Courts Assembly uses intended for viewing of indoor sporting events and activities with spectator seating Sport Arena / Giancarlo Mazzanti and Felipe Mesa
- 8. Use Groups 8 Assembly A5 Stadiums Bleachers Amusement Park Structures Assembly uses intended for participation in or viewing outdoor activities. Beijing Olympic Stadium / Herzog & de Meuron + Ai Weiwei
- 9. The Importance of recognizing and addressing separation in buildings with multiple usages. 9 Pepco ,Henderson, Nevada……..Industrial separation of use groups – Separation of Storage (H) class 1, (F) Division 1.6 and Storage (S-2) Storage uses (i.e. Mitsubishi Chemical in Chesapeake, Va.) https://www.youtube.com/watch?v=3V- 1BL1Tr90
- 10. Mixed Use Horizontal and High Rise Construction Separation is necessary after each of the use groups has been defined ( this building is fully sprinkled throughout) 1hr . R-1 M A-2 S-2 0 hr. 10 Existing A-2
- 11. Mixed Use Adjacencies 1hr O hr. 0 hr. 1 hr. 11
- 12. Mixed use 12 Concept View of Entire project Existing A-1
- 13. Construction Types I,II, II, IV,V Construction Types I & II: Noncombustible • Type I construction refers to buildings whose primary structure is made of noncombustible materials, such as reinforced concrete and/or fireproofed steel. Type II is similar to Type I in most respects, but it allows a combustible (and non-occupiable) roof structure. In order to qualify as non-combustible construction, the quantity of combustible material present in the building, particularly finishes, must be controlled. • Non-combustible concrete and steel construction systems are well suited for buildings where there is an elevated concern for fire safety, because occupants are densely concentrated in particular spaces (as in various Assembly uses) and/or must travel far to escape the building (as in high-rise construction). Type III construction refers to buildings constructed with a mix of combustible and non-combustible structural elements – typically a combination of masonry exterior walls and wood-framed floors and interior bearing elements. Type IV is similar to Type III except that it features exposed heavy-timber post-and-beam framing on the interior; it is rarely used in new construction, but is common in buildings from the 19th century and earlier. Type V construction refers to structures made of combustible materials the most common type is wood 2x platform framing. This is the most permissive construction type with regard to fire safety, and it is permitted based on the assumption that occupants are limited in number and can easily escape the building in an emergency. • Light-framed wood and other forms of combustible construction are particularly appropriate to relatively low-density uses, such as R-3 (one- or two-family houses) and on sites where the risk of fire spreading from one building to the next is low. It may also be used in single-story structures for most other occupancies – including Assembly, Business, and Mercantile – when egress conditions are straightforward. 13
- 14. Type I (A) Construction 1960 Johansen Design for the Orlando County Library , Expanded by Architect Duane Stark in 1980 14
- 15. Type I Construction (A and B) Frank L. Wright, Florida Southern College, Lakeland, Florida Gato Cigar Factory , (now Monroe County Offices) Key West, Florida Fort Zachary Taylor, Key West Florida Condominium , Amber Key, Belize 15
- 17. Type Two (II) Construction (A and B) Michael Graves and Associates, Library in Alexandria, Virginia (IIB) Mixed Use Southern Bank, Orlando, Florida (IIA) M B A-2 17
- 18. Type Three(III) Construction (A and B) Bus Station, Charleston, S.C. type IIB unprotected steel –under construction unprotected Wood structure,(III-B) Norfolk, Va. Carrere and Hastings Architects, Fogler Museum (III-A) (City Hall), Key West, Florida 18
- 19. Type Four (IV) Construction House in Harrisonburg, Virginia Exposed Wood Ceiling, Bar, Key West Florida St. Paul Cathedral, Renovation Charles McCoy Assoc. Inc. AIA, Key West Florida 19
- 20. Type Five(V) B Construction Wood pavilion, Pittsburgh , PA. Single Family house, Southernmost House, Key West Florida 20 Harry Truman’s Southern White House, Key West, Florida
- 21. 21
- 22. Exit Plan ½ diagonal rule-separation of exits- Is this condition allowed today? 22
- 23. Egress Anatomy of an Exit Every building must consider clear exit paths. Every exit path has three components, recognized in the code: 1. the exit access, which is the connection between the occupied space and the exit; 2. the exit, which is the safe route to the exterior space; and finally 3. the exit discharge, where building occupants escape to the exterior. The code prescribes maximum distances for exit access: in most occupancies no point in a floor plan should be more than 75 feet from an exit. Each of these parts has a different function and restrictions on its dimensions and morphology. 23
- 24. Egress In case of emergency is important to have more than one means of egress leading from inside to a safe outside area. Therefore every design should include at least one alternative egress path from any point in the building. Exceptions to this rule include only very small, usually single-story structures. 24
- 25. 25
- 26. Access /Egress • While the motivation for regulating Occupancy, Construction, and Egress arises primarily from fire and life safety concerns (and hence are governed by Building Code), rules for Access are primarily concerned with social goals of inclusivity and nondiscrimination, and they are governed in the US by the ADA and other federal civil rights legislation. • In ordinary circumstances, people enter and exit buildings at different times over the course of a day; in emergencies, however, all occupants need to abandon the building at the same time, quickly and safely. This fact brings several design considerations into focus. In moments of emergency, the architect’s design of clear, optimized exits paths can literally mean the difference between life and death. 26 One important aspect to consider in any architectural design is how the building will function during emergency scenarios such as fires. Every building must provide a clear, continuous, and safe way for occupants in any part of the building to escape to the exterior; in nearly every case, an alternative route must also be provided in case that primary path is obstructed. Where restricted mobility may prevent occupants from fleeing on their own, we must also design protected (refuge) areas inside the building or as exterior balconies – safe places where those who cannot exit via emergency stairs can wait to be rescued.
- 27. In case of emergency, not all occupants of the building are able to leave on their own. Therefore it is important to consider zones in which people with reduced mobility can safely wait until they are rescued. Those areas are considered places for awaiting instructions and must be resistant to fire. Egress for Occupants 27
- 28. Access Virginia Tech Solar Decathlon House on the Mall in Washington , D.C. Toledo Museum built before ADA Legislation enacted. 28 Access Connection between Floors Inside a building, all spaces have to be accessible to people with disabilities. Architects must design continuous paths that connect all the building floors, with or without the use of elevators. 8% or 1:12 A 1:12 slope is the maximum for wheelchair-accessible ramps, and a 3-foot minimum clearance is required.
- 29. 29 Basement Floor Plan 1942,Boston Mass.
- 30. 30 First Floor Plan 1942,Boston Mass
- 31. 31
- 32. 32
- 33. 33
- 34. 34 In summary There are always multiple factors in applying the code: The Architect must be aware of these as he or she Develops the design: 1. Use Groups 2. Mixed Uses (Horizontally and Vertically) 3. Construction types : I (A or B), II (A or B), III(A or B), IV, V (A or B) 4. Mixed Adjacencies with Separations 5. Access 6. Egress –two exits for commercial designs 7. Accessibility (AD
- 35. https://www.youtube.com/watch?v=Q_-V3q5cjFs 35 Assembly fire- Coconut Grove- exit types and location, combustible Materials and sprinklers
- 36. 36