Chapter 7 Flashcards Preview

The Art Of Reading Buildings > Chapter 7 > Flashcards

Flashcards in Chapter 7 Deck (28):
1

Base of operations defn

Concept that the platform you are working on, roof or floor, will safely support you

2

Early foundations were made of:

Field stones: Quartz, limestone
Clay bricks
Granite or limestone blocks
And then concrete

3

What type of concrete is used for foundations?

Low slump, high agg, less water, more Portland

Steel is used for large buildings and all basements

4

Name the layers of a lathe and plaster ceiling

Rough coat/scratch coat
Brown coat
Finish coat

5

Where can you find a metal wire mesh and plaster ceiling?

Under facades over public walkway soffits

Difficult to pull with pike pole

6

Common size for drywall

4 X 8 X 1/2"

Can be as big as 4 X 10

7

Interstitial space

Area above a suspended ceiling

8

3 names for suspended ceilings

Dropped, false and grid

9

Plenum space

Area in the interstitial space used for an air return

10

When you see plenum space what should you do

Turn off the HVAC system

11

How far above a roof does a fire Division wall extend?

18"

12

3 materials used for Fire Division Walls

Masonry- best

Brick Noggin-older degrading

Drywall- good if not breached

13

2 types of Party walls and differences

Adjoining-studs next to each other. Good for FR, but not sound

Offset studs-good for sound, but not FR. Offset several inches

Both can extend through the roof and may be LB

14

How does fire travel into Joist spaces in Balloon framing?

The Ribbon boards that are attached to the studs and support the joists

15

How are AFM corners different?

Two studs instead of 3 or 4

16

Types of masonry walls

Clay brick. Two most common
Concrete brick

Stone, marble, granite, limestone

17

4 types of Masonry walls

Unreinforced brick
Reinforced brick
Weight bearing
Veneer

18

Prior to 1935, you can expect masonry walls to be

Unreinforced

19

Pre 33 Masonry walls:

No PC, only lime, sand and water
13" thick
Parapet walls 3-5' above roofline
Fire cut with lets

20

What did the Longbeach earthquake of 33 do?

Safety codes for better masonry walls

21

Post 33-Longbeach

PC
Steel rebar
9" thick
Anchored in joists and rafters by hangers

22

Posts 59-Tehahapi, ca

4"-6" cap
Parapet 16"
Tie plates every 4'

23

Post 71- Sylmar, ca

Prevent outward collapse
Anchored to floor and roof
Roof had plywood, 1x6 straight sheathing and metal straps

24

Primary collapse hazard in an URM pre 33 building

Front and rear wall, can collapse a distance of 2 X the height

25

King Row

Usually a feature of URM, turned on its side every 4-7 rows,but can be added to an Reinforced era as well for looks

26

Safest part of an URM building is

Corners

27

Clark county

Roof collapse caused tilt wall construction to collapse

28

Pilasters on a tilt wall indicate what?

If only on two sides, they show where the primary roof support members are located. Strong portion of wall for laddering