pn 302 collapsed structures Flashcards
2 causes of collapse
natural
human
3 natures of collapse
internal
external
total
4 types of internal collapse
pancake
lean to
v collapse
tent
3 types of external collapse
90deg angle (falls over full height) curtain (falls downward) inward / outward (some comes in and some out like a zigzag)
who can we call on for help
dangerous structure engineer
usar
other policies that may be relevant
major incident proceedure terrorist hazmats civil disturbances radioactive substances
12 considerations
> request dangerous structure engineer
request usar advisor
request any other specialists from other agencies
rvp
dedicated usar rvp
keep machines away as to prevent vibrations etc
appropriate ppe
cordons
do not force open doors or windows. may be supporting walls
keep close to walls intenernally
good comms with control and other agencies
isolate utilities
how many usar modules
5 structural collapse major transport breaching and breaking multipurpose vehicle timber
six stages of rescue
repeat
reconnaissance elimate utilites primary surface search exploration of voids access by selected debris removal terminate by general debris removal