Title: FIRE ESCAPES
1FIRE ESCAPES
2- Fire escapes can be found on many multi-story
structures, such as - commercial buildings,
- industrial buildings,
- schools,
- apartments houses,
- hotels,
- wood frame dwellings.
- While designed for a buildings occupants as an
emergency egress, they are actually used more by
FFs.
3- Provides a method of escape in the event of a
fire or other emergency when stairs inside the
building are inaccessible, - A fire escape consists of a number of horizontal
platforms, one at each story of a building, with
ladders or stairs connecting them. - The platform and stairs are usually open
gratings, to prevent the buildup of ice, snow,
and leaves
4history
5HISTORY
- One of the first fire escapes of any type was
invented in 1784 in England. Daniel Maseres,
invented a machine called a fire escape, when
fastened to a window, would enable anyone to
descend to the street without injury. - On 2/2/1860, a fatal fire in a NYC wood framed
tenement, killing 10 people, led to the first
egress law in NYC. - In 1867, NYS passed a public law, The First
House Tenement House Act requiring fire escapes
and every room must have a window.
6HISTORY
- In 1887, an American inventor named Anna
Connelly registered a patent for the exterior
steel staircase that would serve as the prototype
for the modern metal fire escape. Connellys
invention introduced a cost-effective way to add
safety to both existing buildings and new
construction in the 1900s. It became mandatory
under the building codes that cities began to
adopt at the turn of the century. - Although fire escapes were still being
constructed after 1930, they were no longer
recognized as a safe, acceptable means of egress.
7Codes
8CODES
- Fire escapes are not allowed to be installed on
new building construction, - Interior exit stairways or ramps shall be
provided and enclosed with fire barriers that
have a fire resistance rating, - Existing fire escapes are accepted means of
egress from existing buildings,
9CODES
- New fire escapes can be installed on existing
buildings only where exterior stairs cant be
utilized due to limits of lot lines, sidewalks,
alleys or roads at grade level. (NYS Existing
Building Code, Section 303.1.3) - Made of metal or approved noncombustible
material. Wood can be used on Type V (wood frame)
construction.
10Definitions
11DEFINITIONS
- FIRE ESCAPE
- an emergency means of egress from a building
consisting of metal balconies on the outside of a
building connected by ladders to each other and
to the ground. Some fire escapes have a ladder
from the top floor balcony to the roof. - DROP LADDER
- a vertical ladder normally held in the "up"
position at the second floor balcony of the fire
escape by a hook. When this ladder is to be used,
the hook is released and the drop ladder is
lowered or dropped to the ground.
12DEFINITIONS
- GOOSENECK LADDER
- a vertical ladder, the side rails of which are
curved at the top, used between the top floor
balcony of a fire escape and the roof. - PARTY WALL BALCONY
- a structure built as an emergency means of
egress from a building which will afford
horizontal access to an adjoining building or
apartment separated by a fire wall. They do not
have ladders to ascend or descend from floor to
floor or to the roof.
13DEFINITIONS
- EXTERIOR STAIRWAY
- a semi-enclosed means of egress serving all
floors with landings at each floor. Entry is
through a doorway instead of a window.
14Types ofFIRE ESCAPES
15- There are many designs, variations and styles of
fire escapes, but they can be categorized into
three types - the Standard,
- the Party Wall Balcony and
- the Exterior Stairway.
16THE STANDARD FIRE ESCAPE AND COMPONENTS
17- The STANDARD
- most common found, normally accessed by windows,
- metal balconies with metal ladders,
- metal parts usually connected with bolts or
rivets and some were welded, - width 3-4 ft., with stairway angles 45, 60, 75
degrees or steeper, - some can be 50 to more than 100 yrs old.
18STANDARD FIRE ESCAPE COMPONENTS
- The DROP LADDER
- a vertical ladder fixed to the front or side of
the lowest balcony, - held in the up position at the second balcony by
a hook, - lowered by lifting off the hook and letting it
drop to the ground, - are heavy and can come free of track guides.
19STANDARD FIRE ESCAPE COMPONENTS
- The GOOSENECK LADDER
- a vertical ladder with cured rails at the top,
- normally used from the top floor balcony to the
roof, - normally lagged into roof joist,
- sometimes have meal supports tied to parapet or
roof joists for support.
20STANDARD FIRE ESCAPE COMPONENTS
- The COUNTER-BALANCED STAIRWAY
- supported on a pivot, balanced in a horizontal
position by heavy counter-balancing weights, - weights are either attached to one end of the
stairway or held by a steel cable against the
side of the building, - located directly below or adjacent to the lowest
landing, - more likely found on commercial buildings.
21COUNTER-BALANCED STAIRWAY
- heavy metal or concrete weight attached,
- can have wall mounted pulley system counter
weight, - age/rust can cause brackets or cables holding
counter weights to fall, - designed to gradually go down as person walks
down.
22THE PARTY WALLBALCONY
23- The PARTY WALL BALCONY
- a fire wall separates the buildings,
- may connect two or more buildings,
- mostly found in old tenement areas,
- no ladders or stairs connecting the balconies to
allow floor to floor movement.
Fire Wall
No Gooseneck Ladder
Fire Wall
No stairs or ladders between floors
24PARTY WALL BALCONY
- Occupants escaping fire conditions
- occupants use the balcony to enter adjoining
building(s), (essentially a horizontal exit), - entry into adjoining building(s) may be hampered
by window gates or other security measures, - may have to be removed by ground and/or aerial
ladders, - may become overcrowded very quickly, causing
overloading and possible collapse.
25PARTY WALL BALCONY
- FD operations
- can not be used to go from floor to floor for
VES, - can not be used to gain access to the roof,
- can not be used to stretch hoselines,
- may be found in the rear of buildings making it
difficult to remove occupants, - adjoining building may be vacant or boarded up
hindering occupant escape, contact your building
dept. - survey your community to ascertain if any are
within your response area.
26March 1912
Front Party Wall balcony connecting five
buildings 260-268 Elizabeth Street, NYC, NY.
Same building almost 100 years later
27Old photo of Party Wall Balcony at the rear of a
building
28EXTERIOR STAIRWAYS
29- The EXTERIOR STAIRWAY
-
- often found where large number of people are
within the building, (manufacturing, schools,
public assemblies) - some have screened fence at stairway,
- there also may be a cover over the platform and
stairs, - also exposed to the elements,
- entry normally through doorway instead of a
window.
30Exterior Stairways come in many forms
31Fire escape structural hazards
32FIRE ESCAPE STRUCTURAL HAZARDS
- May have been present for more than 50 years,
- Exposed to the elements and weakened by
corrosion, - Neglect or improper maintenance making them
extremely dangerous.
33Broken, missing steps, the most severe hazard to
firefighters
34Open mortar joints or cracked bricks at the
connection points
35Fire department operations
36FD OPERATIONS ON FIRE ESCAPES
- Can be used to gain access to upper floors for
Vent, Entry and Search (VES), - If gooseneck ladder is present, can be used to
access the roof, - Hoselines can be stretched up the fire escape,
- Use FD ladders if uncertain about drop ladder or
stairs integrity, - Use FD ladders to ease over-crowding on the fire
escape.
37Raise 1st ladder to first balcony opposite of
drop ladder
Raise 2nd ladder to second balcony
- To ease fire escape overcrowded with people
38Are there permits for this installation?
How is it secured to the building?
They are even be found on residential wood frame
dwellings
39No gooseneck ladder
Multiple dwelling exposure 3 or C side
Notice vertical ladder instead of stairs from
balcony to balcony
40Hook
Same multiple dwelling exposure 2 or B side
Typical stairs
41Something different
Twin fire escapes in the French Quarter
42SAFETY CONCERNS
43SAFETY CONCERNS ABOUT FIRE ESCAPES
- Broken steps cause most FF injuries,
- climb the steps smoothly, place your feet close
to the side of the step, continue to grip some
part of the railing, - Always face the stairs when ascending or
descending, - Drop ladder not within the tracks and falling to
the ground,
44SAFETY CONCERNS ABOUT FIRE ESCAPES
- Ice conditions during the winter,
- Dont lean against the balcony railing,
- Shake the gooseneck ladder before ascending or
descending, to make sure it is secure, - Venting debris, especially glass can be as
slippery as ice, - When lowering the drop ladder, stand beneath the
fire escape.
45SAFETY CONCERNS ABOUT FIRE ESCAPES
- Items such as flower pots, barbecues, etc., can
fall injuring the FF, code violation, notify
inspector, - Dont stand beneath counterbalanced stairs or
counterweight, have been known to fall, - Climbing a gooseneck ladder is dangerous when
carrying tools or a saw, use a strap or rope, - Keep one hand free while ascending or descending
to grip the fire escape,
46A Tragedy
47On July 22, 1975 in Boston, a 19-year-old and her
2-year-old god-daughter were trapped in a burning
building. A firefighter, Robert ONeill, shielded
them from the flames as a fire ladder inched
closer. As the firefighter climbed on the
ladder, the fire escape collapsed. Although the
woman died from her injuries, the infant survived.
48summary
49SUMMARY
- Fire escapes can and do collapse,
- Many are old and lack proper maintenance,
- One missing step should serve as a warning that
more can be missing and to the condition of the
entire fire escape, - Fire escape inspection should be a high
priority, if you observe something wrong, report
it, - IC must be informed if there is a party wall
balcony in the rear of the building,
50Prepared by Thomas Bartsch Chief Fire Inspector,
(ret)