Hi Rise Office Bldgs Flashcards
Curtain Wall: Bearing or Non-Bearing Wall
Non-bearing wall built between piers or columns for the enclosure of the structure, but not supported at each story
Glossary
Fire Tower: Preferred Evacuation Stairs. Req’d in which Hi Rise Office Bldgs
1938-1968 Glossary
Fire Sector or Branch in Hi-Rise Office Bldg
Fire Floor and Floor Above Glossary
Mechanical Control Center- Is it located on same floor as Mechanical Equipment Room (MER)?
May or May not be located on same floor as MER Glossary
Scissor Stairs: Constructed side by side in the core of a bldg in which their doors alternate _
Point of exit to opposite sides of the core Glossary
Hi Rise before 1945: “Heavy-weight”
Plenum type ceilings (found/not found);
Exterior Windows: (openable/non-openable);
Core Construction: (used/not used)
Plenum type ceilings generally NOT found;
Openable;
Not used
Ch 2
Hi Rise After 1968: “Light-weight”
Compartmentalization: (Used/lack of);
Exterior curtain walls leaves a space of _” which requires add’l fire stopping;
Ceiling plenums (found/not found);
Core construction techniques (Used/not used)
Lack of compartmentalization; 6-12"; Plenums Extensive and lack fire stopping; Core construction Used extensively Ch 2
Hi-Rise Office Bldgs: Processing of air is usually done on the floors of the bldg where the _ are located
Mechanical Equipment Rooms (MER) Ch 2
HVAC systems in Non-Circulating Mode “OCO-EMS”
Opening all outside air Supply dampers
Closing all Mixing dampers
Opening all Exhaust dampers
Ch 3
Fusible links should have a temperature rating approximately _ degrees F above the maximum temperature that would normally be encountered with system in operation or shut down
50 degrees F
Ch 3
1968 Bldg code requires a manual fire pump to supplement the standpipe system in bldgs over _’ high;
1938 Bldg Code requires a manual fire pump in bldgs over _’ high
Over 300’ high;
Over 250’
Ch 4
Pump Room: loss of _% can be expected in a 8” riser and a loss of _% can be expected in a 6” riser with the bypass open
25%;
45%
Ch 4
4 Step Procedure for Starting Fire Pumps using Control Panel: “Knives Can Be Lethal”
close Knife switch close Circuit breaker push starting Button move selector Lever Ch 4
Recommended Pump Pressure Floors 1-10;
Which floors start Hi Pressure Pumping;
Which floors 3rd Stage Pumping
Floors 1-10 150 PSI;
Hi Pr Pumping Flrs 31-40 300 PSI (Greater than 250 psi);
Floors 81-90 550 PSI (3rd Stage Recommended >500 psi)
Floors 101> 3rd Stage Req’d (>600 psi)
Ch 4
Pump capacity in Hi Rise Off Bldg usually 750 GPM. Most have 2 pumps side by side connected in _ position
Parallel. Necessary to have both pumps operating at or near same pressure (Ch 4)
Bldg fire pumps in Hi Rise Off Bldg are capable of delivering their rated capacity at a pressure of _ psi at the highest floor hose outlet
50 psi. A relief valve is req’d at the fire pump limiting pressure to 15 psi above that req’d to deliver its rated capacity at 50 psi to the highest fl outlet
Ch 4
T/F Good rule of thumb is to have a separate engine supply the standpipe system for each HL in operation
True Ch 4
Strategic Operation Plan: In order of importance for BC
“D-VEG-C” Which may be done simultaneously?
Determine specific fire floor Verify fire floor Evacuation (up to here may be done simultaneously) Gains control of bldg systems Confine and extinguish fire Ch 5
2nd alarm 10-76 “S-S-S”
Second alarm-Smoke emanating exterior skin of bldg-Serious fire verified Ch 5
10-76 CFR Eng assigned to _
Fire Sector Supervisor/Branch Director with CFR equipment and FE tools. Ch 5
3rd Lad assignment 10-76
Search and Evac floor above fire Ch 5
4th Lad assignment 10-76
Similar to 3rd Lad, to operate on Upper Floors and to Initiate the search of the Attack Stairway Ch 5
FAST Unit assignment 10-76
Assigned to Fire Sector Supervisor/Branch Director (same as CFR Eng) Ch 5
Generally a Branch would be activated _
On the 2nd Alarm Ch 5
Initial floors at a 10-76 that need to be evacuated
Fire Sector (Fire fl and Fl above) are initially all that are req'd to be evacuated Ch 5
10-76 can the 2nd HL go to fl above?
No. 2nd HL reinforces 1st HL, protects position of 1st HL, protects search and evac of fire fl, and contains and confines fire spread Ch 5
Ventilation by removal of windows on fire fl for 10-76 (should/should not) be considered initial consideration
NOT an initial consideration (applies to other floors as well)
Ch 5
Fire Sector Supervisor or Fire Branch Director shall take a position _
1st Fl below fire, where conditions permit Ch 5
Fire Sector or Branch shall be equipped with following:
SCBA for all personnel Copy of floor plan Fire Sector/Branch log Post Radio Ch 5
_ BC may be assigned under direction of Fire Sector Supervisor or Fire Branch Director. These BCs may be assigned as Attack Leader if operating under command of Fire Sector Supervisor or as Attack Group/Supervisor if operating under command of Fire Branch Director
3rd or 4th BC Ch 5
Leaders operate under _
Supervisors Ch 5
Supervisors operate under _
Directors Ch 5
Fire Sector Supervisor or Fire Branch Director shall est communications on Ch _
HT communications on Primary Tactical Ch with under their command. Units under Fire Sector command shall NOT communicate with ICP UNLESS Urgent Ch 5
Search and Evacuation Group Supervisor shall est communications on Ch _
Secondary Tactical Channel with Aide on Command Channel Ch 5
Logistics Section Chief Supervises “Communicate LSR High Up”
Communications unit "S" Lobby control unit "L" Systems control unit "Y" Rehabilitation unit High-rise Unit
Lobby Control Unit shall recall and search which elevators in Hi Rise Off Bldg
Recall and search ALL elevator cars terminating in lobby (can do SCU responsibilities after completing their own tasks) Ch 6
