, 1922-05-20

~ Ataek : INCHES -AtE GooAS eNNA
ing into stairway shafts shall swing
in the direction of exit travel and
shall be self-elosing. All twostory
buildings erected within the City
limits and used for public assem-
blages where fifty or more people
assemble, and all schools, offices,
theaters, hospitals. and churches
shall have stairs and stairWays built
of fire proof material. Except /
dwellings. no stairway shall be less
than a. inches wide, and the total
width Of exit doorway leading there
from shall be at least equal to the
stairway which they serve. ALL
EXITS IN SCHOOLS, HOSPITALS.
CHURCHES, ,THEATERS, AND
OTHER PLACES OF PUBLIC AS
SEMBLAGE. SHALL OPEN OUT
WARD AND BE OF AGGREGATE
WIDTH AS SPECIFIED ABOVE;
Provided. that no doors in any build
ing shall swing beyond the property
line below the second story line of
such building.
Section 10. Sky flight Over
Stair~ays and Elevator Shafts-
Where a stairway or elevator shaft
extends through the roof and is GOV
cred by a skylight, the skylight shall
be constructed with ineorlbustible
frame and sash glazed with thin
glass, and shall be protected by a
galvanized steel wire screen or
glazed wire glass.
Section II. Roof OPenings-All
openings in roofs except as provided
in Section 10 for the admission of
light or air, shall have incombustible
frames and sash glazed with wire
glass or ordinary glass protected
with galvanized wire screen with
mesh not exceeding 1 inch.
Section IL. Fire Stops-At each
floor level in all buildings hereafter
erected, all stud walls, partitions,
Turing and spaces between joists,
where they rest on division walls or
partitions, shall have fire stops with
incombustible material in a name
to completely cut off communion
ton by fire through concealed
spaces. Such fire stopping shall ex-
tend the full depth of the ioists and
at least 4 inches above each floor
level.
Section ID. Concrete and Steel
- VI ANAA
forced concrete steel construction
the quality OF material, the design
and the construction shall be in hc-
cordance with the best engineering
practice. Full designs for such
work. and all stresses, strains and
loads carried by steel and concrete
members in all cases must be filed
with the Building Inspector. The
strength of concrete and full details
of the reinforced concrete members
must show in the designs.
Section II. Strength of Mater
ials-In computing the strength of
materials, the specifications of the
American Society for Testing Ma
terials shall be taken as standard.
All computations of working
stresses for all building construction
other than wood shall conform to
standard practice of the American
Society of Civil Engineers.
i. Section Is. Span and Load
Tables.
(a) Minimum Safe superimpos.
ed Loads:
Minimum Live Loads
Per Square Foot
of Floor
Glass of Bldgs. Pounds
Dwelling, apartments, rooming
houses 40
School buildings so
Office buildings, upper floors.... GO
Office buildings, first floor 49,. so
Garages:
Passenger cars and light trucks 100
Trucks one-ton inc over ca
pacfty $50
' Banking rooms. churches and
theaters SO
Public assembly halls, dance halls.
and corridors of all public build.
ings. including hotels ........ 100
stb) No roof-truss shall be pro-
p%ortioned for a total load of less
than so pounds per square foot.
SEE TABLE Equally Distrib-
uted Safe Loads and Maximum
Spans of Wooden Beams, and
TABLE H.-Safe Loads in Pounds
per Square Foot Equally Distributed
on Wood Beams Spaced 16 inches on
Centers, ut back of book.
ARTICLE XIV.
Frame Buildings in Fire Limits.
Section 1. No frame or wooden
structure shall hereafter be built
within the fire limits as given here
in, except the following:
(a) Temporary one-story frame
buildings, for use of builders or con
tractors.
OBJ Piazzas or balconies not ex-
ceeding ten feet in width nor ex-
tending more than three feet above
the second story floor beam. No
such structure shall extent beyond
the lot line or be joined to another
similar structure of another build
ing.
(c) Temporary booths, band
stands and grand stands, and all
such structures, to be removed after
notice of expiration of permit.
All roofs placed on such buildings
as hereinabove specified shall have
an approved incombustible covering.
Section 2. No frame building
shall be moved from without to with
in the fire limits, or from one loca-
ton Within the fire limits to another
location within the fire limits.