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1 Classification of Building Construction Types Modified from a presentation by Floyd Luinstra, P.E. Visiting Instructor Oklahoma State University.

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Presentation on theme: "1 Classification of Building Construction Types Modified from a presentation by Floyd Luinstra, P.E. Visiting Instructor Oklahoma State University."— Presentation transcript:

1 1 Classification of Building Construction Types Modified from a presentation by Floyd Luinstra, P.E. Visiting Instructor Oklahoma State University

2 2 Classification of Building Construction Types Objectives: Objectives: Demonstrate the use of the construction tables to determine the construction type Demonstrate the use of the construction tables to determine the construction type List and describe the common systems of classifying building construction List and describe the common systems of classifying building construction Identify the fire rating requirements and exceptions Identify the fire rating requirements and exceptions

3 3 Recommended Reading NFPA Fire Protection Handbook, 18th Edition, Section 7, Chapter 2 NFPA Fire Protection Handbook, 18th Edition, Section 7, Chapter 2 NFPA 220, Standard on Types of Building Construction NFPA 220, Standard on Types of Building Construction

4 4 I.Classification of construction types Pertinent standards Pertinent standards Classification systems a combination of Roman and Arabic numerals and letters Classification systems a combination of Roman and Arabic numerals and letters Roman numerals represent the basic type of structural materials. Roman numerals represent the basic type of structural materials. Definitions of basic types Definitions of basic types Type I Type I Type II Type II Type III Type III Type IV Type IV Type V Type V

5 5 I.Classification of construction types (Cont.) The Roman numerals are followed by a three digit Arabic numeral code The Roman numerals are followed by a three digit Arabic numeral code The first digit indicates fire resistivity of exterior bearing walls. The first digit indicates fire resistivity of exterior bearing walls. Second digit indicates the fire resistivity of columns and girders if supporting more than one floor (structural frame) Second digit indicates the fire resistivity of columns and girders if supporting more than one floor (structural frame) Third digit indicates fire resistivity of floors Third digit indicates fire resistivity of floors

6 6 NFPA 220 Classification of Construction Types Type I (332) 3 Hour Exterior Bearing Wall 3 Hour Structural Frame 2 Hour Floor Construction UBC Type I (FR)

7 7

8 8 NFPA 220 Type I (443) or Type I (332) Construction Details of Concrete Density, Amount and Size of Steel Will Need to be Known, In Order To Further Clarify

9 9 Type I (443) or (332) Building. Exterior Wall is Not A Bearing Wall. Exterior Wall is a NonBearing Curtain Wall. Penetrations Between Floor Slab and Curtain Wall Need To Be Investigated.

10 10 NFPA 220 Type I Construction (443) or (332)

11 11

12 12

13 13 NFPA 220 Type II (000) Construction Unprotected Structural Steel

14 14

15 15 NFPA 220 Type II (222) or (111) Construction Thickness Of Insulative Material On Structural Steel, and the Extent of Insulation on Steel Columns, Beams and Floor Slab Reinforcement Will Need To Be Evaluated

16 16 NFPA 220 Type II (222) or (111) Construction

17 17 One Square Inch Of Missing Insulation For Each 100 Square Feet Of Structural Steel

18 18 Unprotected Structural Steel Will Fail During A Fire

19 19

20 20 NFPA 220 Type III (211) or (200) Construction

21 21

22 22

23 23 NFPA 220 Type IV (2HH)

24 24 NFPA 220 Type V (111) or (000) Construction

25 25 NFPA 220 Type V (111) or (000) Construction

26 26

27 27 II.Application and Use of Construction Classifications Buildings area and height limitations are based upon construction classifications and occupancy. Buildings area and height limitations are based upon construction classifications and occupancy. Requirements for fire protection systems are often based upon construction classifications and occupancy. Requirements for fire protection systems are often based upon construction classifications and occupancy. The Life Safety Code limits the use of buildings (e.g. Assembly Occupancies) based upon construction classifications. The Life Safety Code limits the use of buildings (e.g. Assembly Occupancies) based upon construction classifications.


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