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A REINFORCED CONCRETE
ARCH BRIDGE MODEL

Thesis. for the Degree of B. S.

Lee W. Maurer

1927

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A REINFORCED CONCRETE ARCH BRIDGE MODEL

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501mm 10 m: umn' or unuonmn '
mm: com: or mmcmm up may
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JUN! 1927.

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"mud-put rum; porioho mud in tho
tooohlns profoooloh, hovo boon tutu-loll: oddod flth
tho odvoht ottho novloo and-tho todlo.“ amigo oro
oooolpllohod by Ino- ot .thooo too ognoloo .moh
would othorwioo toko duo or ovon oooko to oomploto.

m no of in» in our lorgor nigh Schoolo.

and prootloolly' :11 our Collogoo and Momltloo. ‘
lo uhitorool. loch tllo lo and, had what 1o mtly
noro important. “pool-.11: in our whoa-1n; oluooo; '
o olooror and not-o ohn-ply doflnod ploturo 1o loft in
mundane-tung' _ 4 _

, nomor. novloo oloo hon thon- dloodnntogoo. duo
to tho foot. that tho notoooor 1o torood to toooh his
olouoo in ," noro or lou blind fuhlon. no omot
"look hill olooo in tho fooo" on oooount of tho ohoonoo

of light in tho olooo room. thereto", it in man-no
to hollow thot tho lntoroot md ottontlon or o olooo

would to hordor to hold ohm novloo no and.

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hon o profooo‘ofu‘to‘oll‘flcsoofljoot ouch
doolo w1th tho 40015111115 of hulunao, duo. on
bride”. ho hoo tho oho’ioo of on of 'throo oothodos

1. Inotrnotmg tho olooo with tho o1d
of nov1oo, p1otnroo and doom.

2. none 110 nouoo, but “only p1otnroo
and mm» (Mo lo th’o Inn!" modal-o)

1. mm? o “1611:1113 'wv orni- omm
ot hull 1n oonjmouon w1__th p1oturoo om
doo1’gn'i ‘ _ . .. ._ ..

lho mtor hol1ovool thot tho loot oothod nontionod 1o

hoot odoptohlo to olooooo .thot hovo tho dough of muo-
ond otmturoo. l1th th1o nothod, tho d1oodvonto¢oo of

tho nouoo oro .umm, ond ohot 1o noro 1npo1-tont,
tho otudontioy «mono oIoooly tho poo-to, tho oonotroo-

t1on, ood tho" pontoon-o! ‘mtmcnto .111 o worth;
oodol. It" on, thrown-11th th1o 1o 11o! thot tho
writor ooootonotod--tho.="bdol o: o oohmooood‘m

 

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om SPEDICATIOXS

(Soolo 1 inch - 2 foot)

1pm - 65 foot.
10qu width (anon) - 15 foot.
loodwoy Width (Lorgo) - 25 foot.

aidonlko - Two 6 foot nlko to ho
oupportod on oroh ring.

mm‘ '1dih - 8 foot.

‘ Onto-ll Longth of Bridgo - 97 foot.

no. - 14% foot.

mango: cram- 1433».

Arch 3138 of Springing - 8 foot.

fotol “.0311 of Bridgo of atom - 42 foot.
rotol mm of Bridge-at m - 52 foot.
Four atroot Lighto - 4 to 5 foot high.
“1mm. - 8 Mi 2 inohoo high.

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- In ordor to hood: tho monotony of o ploin
hridgo. it woo dooidod to .1". tho opondrol wollo
from tho opringing lino ontword’ to nko tho opproooh-
ing roodooy 25 foot wido. — ‘

METHOD OF CONSTRUCT ION

In constructing thio'mdol Honoooto woll hoord
throo-oighto of on inch 111 thidmooo no uood throughout.
fhio woll hoot-d is o vory good color intuition of cohoroto
ond 1- much 11am». on. roinforcing mm mm 1o ohm
in oll loot iono lo 111! roolitj ono-oixtounth '1noh oohpor '
hnoo'hor. which'to tn. ooolo of tho hon-1 (one inch oom-
m’ toot) ootnolly would ohow oo ono om ono-holf 1m
horo. oh‘ioh io ohont o quortor of on inoh our otondord
hon. ' Home, in moot ooooo tho ohovo ooolo woo otriotly
“not“ to.

’ Tho ohntmonto woro nodo and ploood in pooition firot.
1 13mph: 'or tho oroh wig ond .n ohntmont m nodo ond tho
oropor nun‘bor of chorootoriotio um... woro oowod out on tho

hand oow. nooo otripo ooro glib}; ond noilod togothor.

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Fifty-nix to titty-eight of then were required to

give the puppet width. A large hehvy rup wee need

to smooth both the arch ring end the ehutnente. m
thiw ‘wee finiehed the arch ring wee plead in‘ mition
iron the ant-an end the two om nu. were and
end nailed into pee‘it ion. ‘ 1‘0- wepr'eeeat the weter level
t «up a: tin- m mm in pmo' under the mm ring,
following the emu-we cf the river on eeoh wide of the

Bridge. ' The river' bank: were now nailed and glued in
plue and um- tamed end ehieeledden' 0e e moth

urine. hie eurfeee wee given mt or glue end Hone-
eote WM eprinkled over it to give it e rough finish.
'the oonnterterte end cartein walle were now plead and
then the eidewelke end reedwey. me mutrsde wae
modeled directly we: thoee need in pmtioenith the
meptien or the epindlew and lamp poete, which were nude

of wood. ‘ In tiniehing the nodal, the outside boxing or
ceiling wee peinted grey, the river banke "blind green”

end the roadway given 3 out of bleak upheltie peint.
1‘he river enrrue wee given e out of new blue Duo

vhieh we! mixed with eleu.‘ inquer.

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the eeotione ore nrrnnged in the following
order: rho roedwoy oonoe out first, ehowing tho
inside oonetrnotion or the bridge. One eidewnlk
it next removed to ellow the eeotion of tho eroh
ring to be withdrawn. it thie point eeotiono of
e curtain wnll, e oounterfort and the eroh ring
ere visible, ell showing reinforcement. Lest e
eeotion of the abutment my be removed. All iro-

portent parte of the bridge are now vieible.

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MICHIGAN STATE UNIVERSITY

H HI ll ILIIHIIIII

3 129313

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