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Building construction > Chapt 2 > Flashcards

Chapt 2 Flashcards

Building Classifications

1
Q

Factors that influence fire behavior include

A

basic building classification

occupancy

fire or fuel load

fire resistance p. 44

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2
Q

type 1

A

fire resistive

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3
Q

type 2

A

non- combustible

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4
Q

type 3

A

exterior protected ( masonry)

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5
Q

type 4

A

heavy timber

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6
Q

type 5

A

wood frame

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7
Q

In NFPA 220 each classification is designated by a 3 digit # code explain each one

A

1st number - fire resistance in hours of exterior bearing walls

2nd # - fire resistance rating of structural frames or columns and grinders that support loads more than 1 floor

3rd - fire resistance of floor

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8
Q

Type 1 construction the building is less likely to what

A

collapse

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9
Q

Type 1 are more commonly constructed using

A

Protected steel frame or reinforced concrete

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10
Q

concrete is inherently

A

non combustible

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11
Q

any substance, except plain water that when applied to another atria ir substance will reduce the flammability of fuels or slow their rate of combustion by chemical or physical actions ?

A

fire retardant p. 47

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12
Q

Type 1 construction is most commonly constructed using

A

protected steel frame or reinforced concrete

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13
Q

un protected steel has no

A

fire resistance

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14
Q

type 2 building materials

A

steel, concrete black ( same as T1) also can use aluminum and glass

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15
Q

type II-A protected requires that strudel components have a “” hour fire resistance

A

1 hour fire resistance

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16
Q

type II-B unprotected allows structural components to remain

A

unprotected

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17
Q

the use of unprotected steel is

A

the most common characteristics of unprotected , non combustible construction

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18
Q

type 3 commonly referred to as

A

ordinary construction

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19
Q

Type 3 is commonly constructed with exterior walls of

A

masonry but any non combustible material with required fire resistance can be used

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20
Q

type 3 interior structural components that are permitted to be partially or wholly combustible include

A

walls
beams
columns
floors
roofs p. 48

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21
Q

when type 3 A and type 2-1-1 contruction they can be protected by several means including

A

plaster in older buildings and gypsum board in newer

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22
Q

Type 3 uses what size wood for floor joist

A

2x10 p.48

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23
Q

fundamental fire condition w/ Type 3 is

A

combustible concealed spaces that are created b/tw floors and ceiling joist and studs in partition walls

drops ceiling can mask fire as well

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24
Q

type 4 is commonly known as

A

heavy timber or mill construction

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25
Q

Type 4 exterior walls are normally made of

A

masonry , interior made of combustible material

26
Q

2 important difference b’tw type 3 and 4 construction

A

type 4 - beams , column, floors and roofs are made of soild or laminated wood with dimensions greater than T3.

concealed spaces are not permitted b’tw strudel components in T4

27
Q

Type 4 construction is the only construction that does not included what ?

A

A and B Subdivisions , instead uses 2HH

28
Q

Type 4 uses min nominal dimensions of

A

6x10 for floor construction which is thicker than type 3 and 5

29
Q

Type 4 construction is not common in

A

New construction for multistory

30
Q

Type 4 oringal application includes

A

factories , mills and warehouses

31
Q

Type 5 construction all major structional competes are permitted to be

A

Combustible

32
Q

Basic method of construction in Type 5 is

A

wood frame ro provide primary structural support with a 1 hour fire rating

33
Q

fundamental problem w/ type 5 construction is

A

extensive of concealed voids. because of this it can become completely involved and destroyed

34
Q

Most often constructed using a method known as

A

light frame construction

35
Q

light frame construction eliminated

A

heavy post and beams and made use of smaller studs, joists and rafters

36
Q

light- frame construction is considered

A

common currency of small residential and commercial buildings in north america

37
Q

Mixed construction occurs where a new structure is built

A

onto an existing one of different construction type

38
Q

building code classification based on the use to which owners or tenants put building or portions of building

A

occupancy

39
Q

assembly group

A

A

40
Q

business group

A

b

41
Q

edu group

A

E

42
Q

factories

A

F

43
Q

high hazards

A

H

44
Q

institutional group

A

I

45
Q

mercantile group

A

M

46
Q

residential group

A

R

47
Q

storage group

A

S

48
Q

utility and miscellaneous

A

U

49
Q

12 major occupancy

A

Assembly , edu , daycare, health care, ambulatory health care, detention and correctional , residential , residential board and care, mercantile , business, industrial and storage p.53

50
Q

Max amount of heat that can be released if all fuel is consumed

A

fire load

51
Q

fire load will vary based on

A

heat of combustion

52
Q

buildings with combustible structural components

A

types 3, 4, 5

53
Q

in form in which used and under the conditions anticipated, will not ignite , burn, support combustion or release flammable vapors , when subject to fire is defined as what according to IBC

A

non combustible

54
Q

most common used test for determining combustibility is

A

ASTME 136

55
Q

Severity of fire is a factor of fire load plus

A

rate at which fire burns

56
Q

fire resistance describes several properties of material including

A

combustibility, thermal conductivity, chemical composition, density and dimension

57
Q

in the case of walls , partitions, an ceilings , fire resistivity also means the ability to act as

A

a barrier to fire

58
Q

fire resistance rating incorporated into building codes includes Min requirements for structural components such as

A

beams, column, walls and partitions, floors and ceiling assemblies and roof and ceiling assemblies

59
Q

most common test method used to determine fire resistances

A

lab tests

60
Q

The standard test for fire resistance is

A

asthma-119

Building construction (12 decks)

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