HomeMy WebLinkAbout014 - 02/20/1979 - AMENDING THE UNIFORM BUILDING CODE INSOFAR AS IT RELATES TO SPRINKLER SYSTEMS M -
ORDINANCE NO 14 , 1979
BEING AN ORDINANCE AMENDING THE
UNIFORM BUILDING CODE INSOFAR AS
IT RELATES TO SPRINKLER SYSTEMS
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF FORT COLLINS as follows
Section 1 That Section 1807 (b) of the Uniform Building Code, 1976
Edition, be, and it hereby is, amended by the deletion in its entirety of
subsection (b) and the substitution therefore of the following
"Sec 1807 (b) Fire Sprinkler Sprinkler protection
conforming to the following shall be
provided
1 The sprinkler system shall be
hydrautically designed using the
parameters set forth in Uniform
Building Code Standard No 38-1
and the following
W Shutoff valves and waterflow
devises shall be provided on
each floor In addition to
actuating a local alarm on
the floor upon which the
water flow is detected, such
valves shall be supervised
by a continuously manned
control station or by a
central station
( ii) The sprinkler system shall
be looped between standpipe
risers at the bottom, top
and mid -height of all
buildings with a maximum of
20 stories served by
any loop The installation
of check valves shall be
approved by the Building
Official
( iii ) Piping may be copper or
steel with no minimum size
of pipe required Solder
used in connections shall
contain not less than 95
percent tin and 5 percent
antimony
( iv) Pitching of lines is -ot
required
(v) A minimum of two fire pumps
independently driven shall
be provided and sized for
the sprinkler demand and
for a minimum 500 gallons
per minute Fire Department
standpipe operations
(vi ) An on-site supply of water
equal to a 20-minute demand
or 15 ,000 gallons on a
combined sprinkler and
standpipe, whichever is the
smaller, shall a provided
This supply shall be
available automatically if
the principal supply
fails
(vii) Operation of the sprinkler
system shall activate the
voice communication system
2 When the automatic sprinkler
system described above is
insLalled, the following reduc-
tions from the requirements of
this Code are permitted
M The fire-resistive time
p e r 1 o d s set forth in
Table No 17 -A may be
reduced by one hour for
interior bearing walls,
exterior bearing and
nonbearing walls, roofs and
the beams supporting roofs,
provided they do not frame
into columns All office
building partitions re-
quired to be of one-hour
fire-resistive construc-
tion by Table No 17-A
and Section 3304 (g) may be
of noncombustible con-
struction without a fire-
resistive time period
Openings to corridor
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walls shall be protected by
tight-fitting, self-closing
doors that need not have a
fire-resistive time period
In Group R , Division 1
Occupancies, corridor and
dwelling unit or guest room
separation may be reduced to
one-half hour
( ii) The 1 1/2-inch hose lines
and nozzles may be omitted
( iii ) Travel distance to a hori-
zontal exit or to an en-
closed stairway may be 300
feet
( iv) Smokeproof enclosures may be
eliminated if each required
stairway is pressurized as
provic'ed in Section 3309 (h)
to 15 inch of water column
(v) Spandrel protection required
by Section 1807 (b) may be
omitted
Section 2 That Section 1807 (m) of the Uniform Building Code, 1976
Edition, be, and it hereby is, repealed
Introduced, considered favorably on first reading, and oraereu p b-
lished this 6th day of February, A D 1979 , and--)to be presented for
final passage on the 20th day of February, A D 19791
7T ST (/
Mayor
y C erg
1979 Passed and adopted on final reading this 20th day of February, P D
Mayor
ST
City C116rk
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