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Flashcards in Ch5 Deck (30):
1

Building analysis during any incident should be ______that is , performed on a regular basis as conditions change and time elapses

Cyclic

2

Only upon arrival and size up is a fire classified as _______.

Structural

3

Unfinished wood that is being rapidly heated emits a _________smoke. A collapse warning sign in light weight wood construction.

Brownish

4

Indications that an occupant is a hoarder should always evoke a concern of ______.

Overloading

5

______ are nothing more than "fake beams".

Trusses

6

Historical weak links: (9)

•Connections
•Overloading
•Occupancy conversion
•Trusses
•Void spaces
•Stairs
•Large, open span interiors
•Parapet walls
•Facades

7

Time truisms for predicting collapse:

Gravity and time are constant, ______ is not.

Resistance

8

Time truisms for predicting collapse:

The time opportunity window for interior operations in light weight buildings has been _________.

Reduced.

9

Time truisms for predicting collapse:

Brown or dark smoke coming from light weight engineered wood products mean that _________.

Time is up.

10

Time truisms for predicting collapse:

The _____ the structural elements, the faster the structure comes down.

Lighter

11

Time truisms for predicting collapse:

The heavier the _______, the faster the building comes down.

Imposed load

12

Time truisms for predicting collapse:

__________ steel buys time.

Wet(cooled)

13

Time truisms for predicting collapse:

There is no safe window for interior operations when a building is under construction, being renovated, or being disassembled. This is a _____situation and you should always establish a _______.

"No go"

Defensive attack

14

Areas that are exposed to trauma, debris, and / or thrust should a building or part of a building collapse.

Collapse zone

15

To predict collapse, the ISO uses a classic_____method. We can take that three-part method and apply at using a five step process:
•Step 1-classify construction using type/era/use/size approach
•Step 2- determine structural involvement (read smoke and flames)
•Step 3- visualize and trace loads.
•Step 4- evaluate time
•Step 5- predict and communicate collapse potential (foundation for zoning)

"Identify-analyze-decide" method

16

Using the type-Era-use-size approach helps the ISO identified the__and__associated with a given building and interpret how the materials and arrange a structural elements might be impacted by fire and heat

Strengths and weakness

17

_________ means that the loadbearing components of the building are being attacked by fire or heat

Structure fire

18

"Identify - analyze-decide"

Five step process:

This step is more art than a science-and is analytical

Step three: visualizing and tracing loads

19

Identify analyze decide:

Five step process:

This step helps the iso defined the week wink, which typically precipitate the collapse. The ISO "mentally undresses" a building

Step three: visualizing and tracing loads

20

Historical weak links:

Connections-structural failure is often the result of a_____.

Connection failure

21

This report should be mandatory reading for ISOs

Structural collapse: the hidden dangers of residential fires

UL University posted this online training program

22

Many factors dictate the time it takes to trigger a collapse, and we should always predict the___of trusses and engineered light weight wood assemblies to ensure cruiser safely outside structure before the collapse occurs

Early collapse

23

Step five: predicting and communicating the collapse potential

Predicting collapse is the___part of the identify-analyze-decide model

"Decide"

24

Can be defined as temporary shoring, racing, or formwork used to support incomplete structural elements during building construction

False work

25

Diagonal braces that serve primarily as a column but must absorb some beam force as well

Raker

*also used as false work

26

When flanking a collapsible, firefighter should you spotters and have rapid___and routes preestablished and communicated prior to the approach

Withdraw signals

27

The building can except the failure of a single component and still retain some strength, like a curtain wall collapsed

Partial collapse

28

The complete failure of the building to resist gravity

General collapse

29

The collapse of a floor roof may impose wait on interior partition walls that were not designed for the load. These become a____, meaning that the slightest movement could cause an explosive release and secondary collapse

"Loaded gun"

30

A directive for cruise to exit the building interior or roof in an orderly manner, bringing hoses and tools along

Precautionary withdrawal