The Detroit times., 1911-02-23

tervais OF not over twenty (eo) feet
may be twelve (i1) Inches thick
for the upper ninety 900 feet IN
height and increased four Cd
inches IA thickness for each addi-
Curtain walls supported at In
tervals OF not over fifteen tlo)
feet may be twelve (i7) inches
thick for the upper one hundred
and twenty-five u2s) feet IN
inches In thickness for each one
hundred (ioo) feet OF fraction
thereof.
In buildings OF reinforced con-
crete whore the columns are built
reinforced and OF full strength and
carrying capacity. a. called for IN
this ordinance. the wall, between
built as called for In this section.
Sec. IL. APRON WALLS Apron
walls may be built eight (s) inches
thick II not more than twelve (lD
feet long, nor more than fve (sl
feet high. otherwise they shall be at
least twelve Q1o inches thick and In
all cases they must be bonded into
the piers. at each end.
Sec. II. RESIDENCE PARTI-
TON WALLS. In residences eight
inch masonry interior partition walls
may be built two stories high and
permitted 20 carry toists and beams
above. IL the length between cross
brick or concrete walls shall not ex-
coed 30 feet. and if the clear span OF
the beams or Joists supported shall
not be over 20 feet long. Otherwise
the brick or concrete partition
walls must be IL inches thick. or
shall have piers or buttresses OF
such size or capacity as the De-
partment may deem necessary.
should the clear span OF the
supported beams exceed thirty
walls must be sixteen inches thick.
or twelve inches thick. with ample
piers and buttresses
Sec. Is. PIERS-BUTTRESSES.
Piers or walls with buttresses may
walls. provided the full amount OF
material called for In this ordi-
nance for these. walls 10 used In
the. piers or walls with buttresses:
All such piers shall be built or
sand mortar. with uniform Joints
throughout, facing and backing. ana
OF sufficient size to safely carry
the load intended for them.
The joints shall not exceed one
Sucn piers may be. built OF REIN
forced concrete OF sire and strength
as called for In this ordinances.
All piers shall be bonded as
used. different in size from the
backing brick. thes same reguia-
All face brick in piers must be
laid to have full bearing OF mortar
under the entire surface OF eaen
The laying or face brick In piers
merely with the joints around tho
outer edge OF the brick is prohibit
All isolated brick piers shall
have bond stones at least five CD
inches thick, or steel plates at
least ree-sixteenths (S-l6) OF an
inch thick, and OF full size or piers
and spaced at intervals Of not more
than four ca times the least d.
mension OF the piers.
Cap stones not less than fivs
t5) Inches IN thickness. or steel
plates. proportioned In either case
to the weight TO be carried and OF
the full size OF the pier. shall be
set under All columns or sirders
In the case OF an external brick
pier. the metal plate may be re-
duced sufficiently In size TO allow
four CD inches Of orickwork 10
plate and the face OF the pier ex-
posed to the weather.
Isolated piers shall not exceed
in height ten (1o) times their least
Sec. is STONE PIERS UNDER
INTERIOR COLUMNS. stone piers
for the support OF posts or columns
above, shall not be used In the In
terror OF any building, ,,
WALLS. In case II Is desired to In
crease the height Of existing walls
which are less In thickness than re-
CURED under this Ordinance, the
same shall be dons py t n1tbsne %
thickness wfthstiie old wall of not
less thHn fDur 10 inches more than
the thickness Required for a new
wall under this Ordinance.
The new lining shall be support
ed on proper foundations
No lining shall be less than eight
(s) inches In thickness. and all lin
ing shall be laid up In cement NOR
tar and thoroughly anchored TO the
old wall with suitable wrought
iron anchors. spaced not over two
CD feet apart. vertically and hori-
zontally and properly fastened or
driven into the old walls In stag
gered rows, the old walls being
first cleaned OF all plaster and all
other coatings
All Innings to q basement wall
thick and must project at least
four (4) inches beyond lining OF
wall of the story above. -.
There may also be used to In
crease the height OF buildings. steer
skeleton construction with ample
foundations and anchored to pres
eH Sec VANS Is. EXISTING PARTY
WALLS. walls hertofore built or
used as party s y,m. a o tSe eGss erection
was In accordance with the then
existing laws. but which are not In
accordance with the requirements
OF this Ordinance. may be used. IL
use OF party walls. providing the
height of the same 10 not increased.
and provided further that the con-
dition of stability required by this
ORDINANCES are compiled VIII. ~,
ali wallis built hollow. the same
quantity OF stone. brick OF .concrete
shall be used In their construction
as 10 they were built solid, and no
hollow wall shall be built unless
by proper ties, either OF brick.
stone or metal, placed not over
twenty-four (24) inches apart No
hollow wall shall have any bear
ing part less than eight CD inches
All hollow walls must be finished
'0 Sec. q TO- .n hollow TILE WALLS.
Eight go, six cd. four CD ana
three CD inch hollow tile or hard
Portland cement block. non-bearing
partitions may be built not exceed
Ing in their height a measurement
OF thirty (30), twenty-five (2z),
respectively and in length not ex-
ceeding seventy-hve (7b) feet. un-
less strengthened by proper cross
walls. piers or buttresses or built
in iron or steel frame work. when
the latter Is imbedded In or insu-
lated by the same material, or
which the partition. IL constructed.
Sec. 21. TILE WALL Innings.
Where hollow tile or porous terra
Gotta blocks are used as lining or
<..-~I. 20 ma1la thav. ahalt mt ho