The Detroit times., 1911-02-21

~ - e 1sast tywsnsy-four ssxl
~ n0|ow and sixteen (1O
~ - either aide OF SAID CTR
~ "a fkeossnd lio. ooo) pounds
y bIooks shall be made solid for
fo11f fhirty-six (3e) inches be-
Sss "a. sS:s y the s.rS.l. ssa.:
- ! PIERS AND BurrREss-
All piers and buttresses that
import loads In excess OF ave tS)
<refs blocks. from the foundation
- TO the point OF application OF
concrsts lintsis and siils. shall
IL 4 manner satisfactory 10 the
Department. OF Buildings. and any
Unfeis spanning an opening over
{our (f) feet six (e) inches In the
IA Hear shall rest on solid concrete
Sec. o TESTS No concrete
nuilding blocks shall be used I'm the
F. oonstruction OF any building In the
F. City. OF Detroit. unless the maker
mItted his product to the full test
required by the Department OF
Butidings, and unless said test shall
hsys sasi.faesofiiyy passed the re, re-,
~
Buildings. All samples for testing
actually going into construction
Sec. 10 TESTS TO BE AS RE-
oUiRED HEREIN. The manufao-
turers or users OF concrete blocks
or either OF them, on request from
. the Department OF Buildings. shall
made OF the cement used in making
f such blocks or further tests OF the
+ completed blocks. at their own ex-
pense and under the supervision
81 the PsparTsInMsEEt I q ha,id On APP
4 prevails. No certificate OF APP
proval on cement blocks, by the
Department OF Buildings. shall be
eonsidered In force more than six
Sec. IL. BRANDING REQUIRED.
The brand or mark OF identinoA-
< tion must be Impressed In or other
wise permanently attached to each
Sec. IL. CONDEMNED BLOCKS.
Any and all blocks. samples OF
which on being tested under the
direction OF the Department OF
Buildings. fail to stand at twenty
81 eS,s ordinsnc. n shall iss 5. r %SarIsS
~Condemned" by the manufactures
81 user and shall be destroyed.
Dsc. ~. LICENSE FOR THn
MANUFACTURES OR SALE OF.
Within sixty days from the pas
Arm or corporation engaged In the
Hmanufacture or sale OF concrete
blocks. shall be required TO obtain
= licenBe from the Mayor. The APP
:. pIication shall be made on printed
q Saildinss and Be- accompanied By
q zee OF $500. The license. II H.
sued, shall be from the nrst day OF
June I'm each year and shall be Tor
= period OF not less than one year
Sec Sec; is $, CAUSES FOR WHICH
Any license may bs revoked by the
Mayor for any OF the following
oausss: wilful violation Of any OF
the spscifications, laws and ordi-.
improper materials. Before revolving
my license the Mayor shall give
notice to the licensee and TO the De-
partment or Buildings OF his inten-
ton and permit the licensss 20 be
heard In his defense.
ARTICLE XIV.
Bxcavntions and Foundatfons.
Sec L. EXCAVATIONS. All ex-
cavations for buildings shall be
properly guarded and protected.
Sec. 3. EXCAVATIONS BELow
TOOTINGS. Excavations In any
building for the foundation OF any
machinery or for any cistern or any
pit Of any kind. or for q tunnel or
line. shall not be dug below the bot
tom OF the footings Of any founda-
ton wall or pier. when such excava-
ton extends within one foot (1) OF
the angle OF repose or natural slope
g the forneation soil under the
hrst uhder-pinned. or otherwise
properly protected against settle
ment during the progress OF the
OF SOILS. Different soils. sTciud-
Ing loan. black soil, and mud. at the
bottom OF the footings, shall bs
deemed TO safely sustain the follow
Ing loads to the superficial foot
namely:
Ordinary clay and sand together
"a layers. wet and springy, two Cd
Clay or fns sand. firm and dry.
three 90 tons per square foot.
Very firm coarse sand sti6 gravel
r or hard clay, four (V tons pss
square foot.
Sec 4. PRESSURE UNDER
FOOTING OF FOUNDATION. The
footings OF foundations In buildings
more than three CD stories In hsight
are TO Be computed 90 follow:
For warehouse and factories, the
foll dead load ana Tex q the I've
IN stores ana buildings used for
light manufacturing purposes the
fun dead load and 1ok q he lvs
In churches, sehooIhousss ana
smSy z the Dl sa d.aS Sas ana q 70
e the live load.
In offics buildings. hotsis, dwell
ings. apartment houses, tenement
houses. lodging houses and stableA
the full dead load and so% Of the
Footings. shall be designed 20 that
the loads win be ~ uniform a. pos
ubie, and not In excess OF the safe
bearing capacity OF the soii a. e.
abolished By Section . OF this Ard
Variations from the above re-
quirements may be had only on sps-
c1al and written permission OF The
Department Of Buildings.
Sec. s. FOUNDATIONS. No foun-
Saficn wall shall be built upon
shall be built on filled ground, sx-
4 cspt for frame buildings not over
two stories In height Founda-
tons shall be proportioned for the
actual average load they will
pied building, and shall be carried
down 70 sand. gravel. hard clay or
rock, except whore piles are used
Every building within the City
Limits except sheds. and except
frame buildings not over twenty
nye (25) feet high from sill 20
plate. shall have foundations OF
brick. stone. iron, steel or concrete
~ laid on solid ground. or upon piles
or ranging timbsrs. when solid
earth or rock n not found.
Dheds and frame buildineS not
over twenty-five (as) feet high
from sill 60 plate may be set on
cedar posts or on isolated masonry