This presentation is an update of the FEMA Structural Collapse Awareness training PowerPoint series. Modules include Introduction, Building materials, Building types, Causes of collapse, Collapse patterns, & Hazard identification system Has additional content and photos. Presentation is over 260 slides in length. Includes the FEMA manual.

1. PREVIEW OF
STRUCTURAL COLLAPSE
RESCUE
AWARENESS
BRAVE TRAINING SOLUTIONS
WWW.BRAVETRAINING.COM
Copyright 2019
R11 V1

2. CLASS OBJECTIVES
Student will become familiar with
Introduction to structural collapse response
Building systems & redundancy
Building types & characteristics
Causes of collapse
Collapse patterns
Collapse hazards
FEMA US&R Marking System

3. NFPA 1670
Standard on Operations & Training for Technical
Rescue Incidents
Includes Urban Search & Rescue
Operations
Identify & establish levels of operational
capability for safe & effective operations at
technical rescue incidents

4. NFPA 1670
The purpose is to specify minimum job
performance requirements for service as a
rescuer in an emergency response agency

5. NFPA 1670 LEVELS OF CAPABILITY
Awareness
Size-up, Site control, Scene management,
Hazard identification, Basic search &
removal of readily accessible victims

6. THEME OF US&R
To save trapped victims while minimizing the risk to
victim as well as the US&R Forces
Survival vs Time of Extrication
1 hour 95%
1 day 82%
2 days 37%
3 days 34%
4 days 19%
5 days 7%
With explosions times may be shorter

7. PPE
May consist of
Rated helmet
Gloves
Eye & ear protection
Safety boots
Respiratory protection
Long sleeved protective clothing
Knee pads
FEMA Photo

8. COLLAPSE WARNING SIGNS
Smoke or water coming through joints
Racked or twisting structure
Missing, damaged, or strained connection points

9. FORCE TYPE-BENDING

10. W2 WOOD FRAME APARTMENTS
1 2
1 2x wood joist at
roof/floors with
1x wood sheathing
or plywood
(post 1945)
2 Wood studs, platform
framed with wood sheathing
1x horizontal pre 1935
1x diagonal pre 1945
Post 1945 plywood, gypsum, or wire

11. URM TYPE CHARACTERISTICS
Typical occupancies
Residential, commercial, & industrial
Key performance aspects
Brittle with little capacity to resist
unanticipated loads
Numerous interior walls may prevent floor
collapse

12. EARTHQUAKE LOADING
Gravity
loads
Gravity loads
Inertia
force
Ground
shaking

13. DESTRUCTIVE WINDSTORMS
Tornadoes
Violent vortices originating
over land, usually
created by colliding air
masses
May be up to 1 mile in diameter
Winds up to 300 mph
Photo by Good Free Photos

14. BUILDING EXPLOSION
Photo by William Murphy

15. FLOOD LOADING

16. VEE VOIDS
Occurs when interior support fails
More common in decay/overload column
(URM, Heavy, Floor, & PC Concrete)

17. IDENTIFICATION PROBLEMS
Judgments can not be precise
Partially collapsed structures difficult
Collapsed structure has come to rest, but it is
now weaker & more disorganized than
original structure
Earthquake may have caused partial collapse,
but building remainder may be weakened &
ready to collapse in aftershock
Structures can collapse in aftershocks

18. KEY LEARNING POINTS
Cracks in reinforced concrete & URM create an
opportunity to monitor structures
Potential hazards have been summarized for
each of the five main types of buildings
Light frame, heavy wall, heavy floor,
precast concrete, & steel frame
Become familiar with these summaries in
the StS FOG

19. BUILDING MARKINGS
Photo by FEMA

21. SEARCH ASSESSMENT MARK
Modified mark for incomplete search

22. FOR FURTHER INFORMATION
GO TO LINK BELOW
STRUCTURAL COLLAPSE
AWARENESS