14 Non Fire Building Collapse Flashcards Preview

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Flashcards in 14 Non Fire Building Collapse Deck (15)
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1

Concerns with natural disasters

Loss of water supply. Rupture of gas mains, loss of electricity, loss of communications, impaired roads, multiple building collapse, multiple victim rescues, multiples fires from trapped flammable materials, impaired building life safety systems, arson fires, long term related fires

2

Buildings most susceptible to building collapse during earthquake

In reinforced concrete, buildings made prior to 1930s

3

Main contributing factor to damage form earthquake

Location of building relative to fault line or epicenter

4

Subsidence

Sinking or settling of land due to various natural and human factors such as removal of underground water or oil

5

Sinkhole

Natural depression in land surface formed by collapse of cavern roof general in limestone regions

6

Inadequate structural design collapse happens when

An inadequate design slips through inspection process or a change on made in the field that is not intended

7

Temporary load related collapse

When during construction phase building materials are carelessly loaded in the building and exceed the intended design load

8

Sequencing collapse

Improper sequencing of construction leads to failure

9

Weaknes of building frame collapse

Example is not letting foundation cure properly

10

Instability structural failure

Frame isn't structurally stable yet and is submitted to horizontal or vertical loads, or is missing required cross bracing to strengthen it

11

Piecemeal demolition

Demo the building piece by piece using hand tools and machines

12

Controlled demolition

Using crane and wrecking ball, hydraulic pusher arms, wire role pulling or explosives

13

Primary goal of demolition process

Not to damage nearby properties

14

Vacant building or ones scheduled for demolition hazard

Scavengers removing important parts possibly weakening structure and systems leading to collapse

15

Two types of non fire collapse

Nature and human caused