High Rise Operations Flashcards
How many high rises in Tucson?
455 in 2013
What is a high rise?
a. The uniform fire code defines a high-rise as any building over 75 feet in height
b. In Tucson a high rise is considered four or more stories in height of 50 feet
c. All buildings greater than 50 feet in city limits are sprinklered and have standpipes
What’s the highest high-rise in Tucson?
What does Commo call high rises?
Where are the most high rises in the city?
d. Highest building in Tucson is the Unisource Building at 330 feet and 25 floors.
e. City communications may refer to a high rise as Building 3
f. Highest concentration of high-rises in Tucson—U of A
What kind of occupancy types are high rises?
i. Hospitals
ii. Hotels
iii. Apartments
iv. Office Building
etc. ..
What are some design similarities with high rises?
a. Beyond reach of Aerial equipment
i. Height
ii. Building setbacks
iii. Windows that won’t open
b. Potential STACK effect
i. Chimney effect
ii. Fire and Smoke spread to upper floors
c. Unreasonable evacuation time
What are some fire behaviors we’d expect to see in high rises?
a. High rise buildings are not fireproof
b. Many have large open floor areas with a high fire load
c. Flashover potential
i. Usually airtight creating smoldering fires
ii. Heat usually contained inside of building
d. Window failure can result in exterior fire “Lapping Over”
What are some pre-planning aspects with regards to high rises?
a. Access
i. Roadways
ii. Doors-Key box (Knox or Supra Box)
iii. Stairways
iv. Elevators
b. Communications
c. Occupant load
d. Construction
e. Utilities
f. Fire protection equipment
i. Alarm systems
ii. Sprinkler systems
iii. Standpipes
g. Water supply
h. Building engineer/plan
Standpipe Systems defintion
A wet or dry system of piping, valves, outlets, and related equipment designed to provide water at specified pressures and installed exclusively for the fighting of fires
What are standpipes?
b. Standpipe systems provide a means for the manual application of water to fires in buildings
c. They are designed to provide a quick and convenient means for obtaining effective fire streams in large low buildings. These systems are usually dry and have to be supplied with water by the fire department
Standpipe classification
a. Class I intended for FD use, usually dry
i. Standpipe outlets located in stairwells, usually protected by fire-resistive construction
b. Class II intended for Occupants use, wet
i. Hose cabinets only
c. Class III intended for both FD and Occupants
i. Both FD hookups and Hose Cabinets
Fire Department Connections
a. Must indicate intended use
i. Automatic Sprinklers (96.2% effective)
ii. Dry Standpipes (most effective way to supply water to upper floors)
b. Must have removable or breakable caps in place
c. Multiple inlets are usually interconnected
d. Must be accessible to FD
e. Cannot be obstructed
Standpipe Markings
a. Tell at a glance how many systems
b. Engineers ensure correct system supplied
c. Allows Attack Team to correctly ID system and floor level
d. Originate North side, Northwest corner
e. Continue Clockwise around building
Standpipe markings exterior
i. 7 x 7 inch diamond shape
ii. First system marked “A”
iii. Number indicates how many systems
Standpipe markings interior
i. 5 x 5 inch diamond shape
ii. Letter indicates which system
iii. Number placement indicates level above or below ground level
iv. Roof outlet will not have a number, just a letter
v. For outlets above ground level the number will be placed above the letter
vi. For outlets below ground level the number will be placed below the letter
vii. The outlet on the roof will be identified with a letter only. No floor number will be necessary
Making a standpipe connection
a. Lay two 2-1/2 lines to the standpipe connections and remove the tips and place on ground under the connections
b. Remove swivel caps from lower, center or any caps if only two. (horizontal vs. vertical)
i. Check for gasket and observe into coupling for obstructions
ii. Missing gasket—Unused inlet or nozzle tip
c. Connect shut-off butt, tighten w/spanner
d. Open shut-off butt