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....
W. H. Laub
BOLTED CONNECTIONS
BY
and
March 1954
J. R. Phillips
q2. .
Lehigh University, Be~hl?pem, ,Pa.
Fri tz·Engir;.ee,ring, Labd~atory
, ,
C.E. 103 Instructor: Pz,of .F,.\ W. Schutz
Project 243
Report 243.1
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of r1v.te4.~ot;1<m.in a11tnatanc...,":v!ou _••ta _'Ie
~Qft. tM t.ltt,bllt,,. ot '~'lnI ·the· 'tension.'reaa \0, ....
""I. dtlo .~1.; 0.'1' to I. f 1.,(1)*'Sonvel", Jotatl a",
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to· btlattlnl. #I"los <I , $ Ie) f4 1 it 0·.t5 i' ·i·., be Of'1t·l(ta! '!.A
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3wsttrr the poatlWJ.Sty fit "1__ 'the .U-.»1. b.-tna .~.
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the -4v~tl.tlon _1'_ ~s.o~t. tbe ~1!'.".4
. " •. S I a r&1il~ ·1n'h.lr~UUat;lon., th","'otte, a teat,~··
~~*b0'4ft lUtlate4 bJ' tht._hora_ ,an .ttupt 1;03'U1ttty
.n l:nore•• tn b8t-1ns .t~a.
- - - - - - - - - - - -* Numbers in ( ) refer to references listed in Bibliography.
v.
ACKNOiJ1JLEDGMENT
Even though this report was prepared for an ASCE
student paper contest, it was however the result of a litera
ture survey made in the course of preparing for research in
C.E. 103, Fritz Engineering Laboratory Project 243.
The authors wish to express their appreciation to
Prof. F. W. Schutz, Jr., for his advice and instruction in this
work.
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1.t$ly hove~.bOlt.'oOl\li"ttonaNlYe_em ~.1nI ~ »tp~n'1
in .p1t. of •• tAct_at~.•,.Ittt." .. ~h.",.lV'ot".., of fb(tlt# "'~0III0n1,. '!Jl u.- ·tIl .tNotutal ~*~#t~c~.ol~ ·md 'he bf4h."t'••tb, tX- b!ahbNJ41-ello1t.·
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~n' "",""" ~oun"·~ on n. ilttld"'~~"""""''''''stl''l> .."tu.ral JoifttsO$f~••earVJ,l ~ ... ,_,!'M\1'~ ""_ A'WoV..... "~ .4lfV'.~. 'liIt¥. _ '. .' _ .. .' . -.
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'the ••~t'" in r.lveted<Uimneetlcma.fo at.1ft tbia ~~lon
.; ·bt$bo~l•••tl..., " "vel••. 'b"'.i ra.'eMJI.(4)me. b'1lh ttMn~ bolt b ••,eclal1V ..11,~ tot" ibIS JOb~
•• A.s.•t:.M.~l.' a .saa ,ut14· , ...,tw ·bJ&h....U.
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i"· ""'••. 11lt'
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ft.S.tlon 1ft .\!:. ,~.m'..lt ••'a1tt~ t.,,,~ • ,.fA7!n8 .l#t".~l""'M4_,r:tt)2..,.t 'Of ~.t1on.(')(1). ~•
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$~h •• tn,.'tClrl'-d. b.U~__n', .pee.•.,•...••..•j.~l.'~(a). ,
allow the J~. to _painted I.n4~1..4 tor J'lV'W#·lfttb
.6h.~";V\·"'''' .....~~.... ~1a""cI bv.·, eltD ,ot _ _ 'ft~1 .....~""".'~.~""_- "':',•.. 9',\1',. :"~-,*;W J!t1;''/fII'" . v .•', ':fI;1., /', -,,' ,,'"' ' "", _. ,',". , ," '," ~¥~T
3
F JG. I,
T Y 1"1 CAL S T RES S - ST R A I N G U R V E
1201-------+------+---------=-~
A 325 T
·-·U)
·~ 80
CJ)
(J)
W0::.-(/)
.006
MILD STEEL
.003o
o
40r----+----+------i----------
STRAIN IN. PER IN.
SCHEMATIC DIAGRAM OF A PAINTED JOINT
1
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I
(j
I
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."
G'.
CONNECTION STRESS DIAGRAMS
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101
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0 0t t t t t t t t t i .rOI rOrI) t 11 1t ttl-n "'Tl- -G') G').
VIVIRIVETED CT BOLTED p
,.
SPECIMENS SHOWING FATIGUE DAMAGE
- - - - .....-----..... -----.--- --
T Y PI CAL FAT I G U E F A I L U RES
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P. S.1.
TE N S ION
20,000
SHEAR
15,000 -
0.75
BEARING
40, 000
2
TEST U. OF ILL.
PROPOSED TESTS 2.67
COMPARATIVE STRESS CHART ."
G).............
1._ ttft$l. :1.1. _tic. .1ft the ... f~~l••atM .~t..•~•• to t ••~ I~' .,.,tv ·0Itl. Mi· _tid.. Xt tlt_ II _Iilll.
tM i>H.ft~ ~mt bttwtn'<tUt__ ••'.ol1el •..~.Ad thOle
_ntt'Ollt4 __'M~ ·.tll ...Sft_w"..
... H"'.lt\l'l. ,••~m"'d .~I
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Ult:~.·.-·~'1···.tJidm, tlhen ltlt\ ....,l.u4. ..t~!(.. ..,.".' .. "_~.11 '.' '.' ~~ ..... on '. .., '. ..,. ,. ,.. .... . .....~"lI" f
~......ponp ••••~11'M>Plt"lRA"Ito _U1 ~·~ttC"
that til.. b .''~ 4.11,., oo~4.6 ~t4slft1.t the.t•• lii, ,~.,~. e_ •• · ttptli1~f' .fall."l_~
td:thtbe ·aM1tl. oIt'd".tnlDl t~.t '.be .td.~~.h4br••.~....l'l. Aw_~nt;~'.' .'''_~1~ -r -.~.te4 'When ·Mlt_blt... I ••• '""11"1\1 .~!q.
a ..,. _ JOQ1I>1. tbat .D .-:low tan u ...114 .~
to ,_ ."n.~, I.tnt u ;I~ lnf!8Wf1; I') \llb1. £I. '~.*le
(ttq1"'tl* otd_tet •• bOltt4 ,otitt.~••U" 1.4.. S~.
th.tk!",.t .tt.- ictf4r • ...ul,..t..~ _,"_4.t~._0_tu '... lSlIMtl'.' ••• tbil ·t,fmP In'~ va., "".•~ $.-11.bOlt, hQlf........, ,~. ott.- Hat.tnt, bAt.'Il_ that t~_'ba
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,.11'0; ~1_ .~ tMJ· 1.1••1 , ••101\1 a.t.~ 'one.'.1n to"Jt~ 1 t, k •• tbn: lfbtft ,.,1IW 11 .tft ·tbe
~l..tlc,._~ 8r,· .1•• tt tblt J!ilvttji ."".' ..., ·aH'Mtft .. tJt
, fitU-.l wlth.:pp~,Ml,.tM __ 11.14 ••,.. Jt....~, thU 1•
.., ,...,.... b~iih11ie4 ···~.&l~·i u toLe ."ft lIi-- '•.u.'~~n\'lv't '4'" ~•• ~.•111! .~....... , e¥f~~ W~~ . .¥,.... ~ . ", ""-ti.v.
.. "lett t. ttl .' ,ltlt·!••~tt. 'thI, lK>1~ .,.'Ul be tn. 1t.,•••t!. ,~,~M_ .'tl1 ~.)·1. to "flUt· "Mllulalft$ fA ~,.' ,b'.·.
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tRESTRAINT DEMONSTRATION
FIG.7Q
FIG. 7 b
13
'SCHEMATIC DIAGRAM OF JOINTS UNDER LOADS
"-G')
~
II tht .'tlthora· ba_tvle4 to Ih. _ 01'__• til'
t..~ .........,M .~,...~t._ .,. blab t_Ut tiOlb4
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