The Saint Paul globe. (St. Paul, Minn.) 1896-1905, 1901-08-30
PART VI.
FLOOR LOADS AND TEMPORARY
SUPPORTS.
Sec. 50. Floor Loads

The dead loads in all buildings shall
consist OF the actual weight OF walls,
floors, roofs, partitions, and all perma-
nent construction
The live or variable loads shall consist
OF all loads other than dead loads.
Every floor shall be of sufficient
strength to bear safely the weights to
be imposed thereon in addition to the
weight OF the materials Of which the floor
is composed; if to be used as a dwelling
mouse, tenement house, apartment house,
motel or lodging house, each floor shall be
of sufficient strength in all it's parts to
bear safely upon every square foot of its
surface not less than sixty pounds; if to
be used for office purposes not less than
seventy-five pounds upon every square
fooot above the first floor, and for the
latter floor one hundred and fifty pounds;
II it is to be used as school, or a place
OF instruction, not less than one hundred
pounds upon every square foot; if to be
used for stable and carriage house pur-
poses not less than eighty-fiYe pounds
upon every square foot; II to be used as
a place of public aSSemblage, not less than
one hundred and twenty-five pounds upon
every square foot; if to be used for
ordinary stores, light manufacturing and
light storage, not less than one hundred
and twenty pounds upon every square
foot; if to be used as a store where
heavy materials are to be kept or
stored, warehouse, factory or any other
manufacturing or commercial purpose,
not less than two hundred pounds upon
every square foot.
The strength of factory floors, intended
to carry running machinery, shall be in
creased above the minimum given in this
section in proportion to the degree of vi
bratory motion liable to be transmitted to
the floor, as may be required by the
Commissioner of Public Works. The
roofs of all buildings shall be proportion
ed to bear safely thirty pounds upon
every square foot, measured horizontally,
in addition to the weight of the materials
composing the same.
i1axry EIa0
shall be taken to be three hundred pounds
upon every square foot measured on a
horizontal plane.
Vertical supports shall be of sufficient
strength to bear safely the weight of the
portion of each and every floor depending
upon it for support in addition to the
weight required as before stated to be
| supported safely upon said portion Of
For the purpose of determining the
carrying capacity of columns in dwell
ings, office buildings, stores, stables,
public buildings and factories, when over
five stories in height reduction of the
live loads shall be permissible as follows:
For the roof and top floor the full live
loads shall be used; for each succeeding
lower floor it shall be permissible to re-
duce the live load by five o. per cent
until fifty 500 per cent of the live loads
fixed by this section is reached, when
such reduced Loads shall be used for all
remaining floors.
Sec. 80. Load ON Floors to Be Dis
tributed-
The weight placed on any Of the floors
of any building shall be safely distribu-
ted thereon. The Commissioner of Pub
lie Works shall require the owner or
thereof, to redistribute the load on any
floor, or to Tighten such load where he
deems it necessary.
Sec. 40. Strength of Existing Floors
to BE Calculated
In all warehouses, storehouses, facto-
ries, workshops and stores where heavy
materials are to be kept or stored, or
machinery introduced, the weight that
each floor will safely sustain upon each
square foot thereof or upon each varying
part of such floor, shall be estimated by
the Commissioner of Public Works, or by
a competent person employed by the
owner or occupant, said estimate shall
be placed in a conspicuous place on each
story, or varying parts Of each story, Of
the building to which it relates. Before
any building hereafter erected is occu-
pied and used, in whole or in part, for
any of the purposes aforesaid, and be-
fore any building, erected prior to the
passage of this code, but not at such time
occupied for any of the aforesaid pur-
poses, is occupied or used, in whole or in
part for any of said purposes, the
weight that each floor will safely
sustain upon each square foot thereof
shall be ascertained and posted in a con-
spicuOuS place on each story or varying
part of each story of the building to
which it relates. No person shall place
or cause or permit to be placed, on any
| floor of any building, any greater load
than the safe load thereof, as correctly
! estimated and ascertained as herein pro-
vided.
Sec. Al. Strength of the Temporary
Supports
Every temporary support placed under
any structure, wall, girder or beam, dur
ing the erection, finishing, alteration or
repairing of any building or structure or
any part thereof shall be built of suf-
f1cient strength to safely carry the load
to be placed thereon.