....

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

.•.

,f- •

liil...

11

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it .' .. ~ .", if

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..3

'1

!Ala J>'1*'1u.tt-i_..a •• "1114" of .. :U.te_'U'A'a_n_ot ••llabltlnfcmJa"l. on _tattle .M4~et.... ot

hl8h ttI.,llt '.1•• oOl\ftect'.t<mli .. t>,Jh••utbQrI- 1ft PM,"­'el.tot'~_;;~n'.tl.'In tldA tl.1'. X- _,~t1U't 111gb ..."le "1t.,. OOMt.t1tma ..... the~t~

of r1v.te4.~ot;1<m.in a11tnatanc...,":v!ou _••ta _'Ie

~Qft. tM t.ltt,bllt,,. ot '~'lnI ·the· 'tension.'reaa \0, ....

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Intttal ,.. .bRIf "1' ......-...t .,.,Uj.e4 t ....len t ••~

to· btlattlnl. #I"los <I , $ Ie) f4 1 it 0·.t5 i' ·i·., be Of'1t·l(ta! '!.A

~11\a -t.. thO' 611:''''' J$,.eU,..'te, ",; S • !lot 1 ,11 1.1.

"There 11 no' ·at t:he, •••_nt, ... U;JI~1.•• ·tfh1ohilou14

3wsttrr the poatlWJ.Sty fit "1__ 'the .U-.»1. b.-tna .~.

1n ·tbe_pH~1.".he.l1"bl ••~1naat".q'~1>:r

l)r'bStns '.'0". "«••~4ba. to .ltu1acd ••_~.-'.utho.t.l ._ th1.$ ,.tlU..,. -,u14 1>. NO\U"t4 MI'~.

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.

lutJ'04u.".toAt i .'-."..', ',. "" "' ",'

A"-_ 1l <m1:r P "'-0••' I'. weak••t l1nlt .~J.1v

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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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forae4 by'. ~b.~ i'n F.-.'t. tt#' " 1%.10'0$" ."'~J ~

·~n p~QI"'j1 .~ Wll1tA~1. '~'~"Un$ Of 18 .truct~l

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~ent ~~t, sa h1ab.•••11, '-'01,. 1. ~.*.Ott 1'1.•••.V!~

t4' ·the 'I1ntvwattlt ot1l1in,h who ,,'wtd ,avedteat.lon" 'Ot\ hipticl't teat.- tftl'$8.(e)~.~hj.n~a1} _ W'OJi:: tlU$:

~n' "",""" ~oun"·~ on n. ilttld"'~~"""""''''''stl''l> .."tu.ral JoifttsO$f~••earVJ,l ~ ... ,_,!'M\1'~ ""_ A'WoV..... "~ .4lfV'.~. 'liIt¥. _ '. .' _ .. .' . -.

th~ ~sns.l!-cun«atl.ttOJ tountlt4 Sa. 1Sl41·ana. bat 4~c:bt4

lfttemse 1m'at~tlOP 1JJ. '!t!.le f1.14 a.t. .-vet*.al un1vev.,.tm.fbe Amari_a Soot_if'. ~.t1nS .t.c-~ 49$wibN the, btgb

tenalie bOlta 'un4,v dM1SNlt~ A32ST Q.utm;Ohf14 'Dd ~re4~lt.

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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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th1a __...1al ,p "~.14td"'b. 'ldltft ..~. 'bbat thtl

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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). ~•

.~ 1>&'*%»_"I'~ ~ .,..t ~t "lft' t ......l1 HIl."~...

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01.- .'.1 __ • f'ore1lft ...~ at,S.~ 110",.1 .11

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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

() (j ( )

I

(j

I

() ()\) ~

."

G'.

CONNECTION STRESS DIAGRAMS

1t t 11 t ! ~iii t

101

,101Itt ti . t t t t t

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

11\

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RIVETED

G) G)G) G)G) G)

"T1-G).

BOLTED til

4:'1 ,i5,.;~"".""', ~""1k1#i .fA*.' .'I....~;,*~.iI:".v~ ••·A~iIIt .....,.; i-"-'~ .... ,;~ "':,"", '_' ~. '.;~_..~~ ~.:~:~r•.~ '...'_~". ~..~...,~_~1.4 ~"t... . tft• ..... ,., '..

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10

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,." thl I,.Olt!<:lllOU.'O uto .1,'-\)Ilt. ~f'ttna•••••t.. 'Ia,.'·-, if ,,". ..tftjjJ' ·tiA~ ""·~1- ,~... .......~...~'bAl:t*.·twe~' 1M' --..'. ~~Jil!!J • 'II: ..•.~r~, ".j,MlfoY ..,...~ ~..~~ .¥.J,'."'.~" ...' .,...,. .. ",,, V-4i

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.'! .' . .. .'.A.......li..1;· .~ e,..· ~..'JI''''''_.'' .' ....••• u , ~.' •. ~h:~ «UI ._ .~• ....-¥ ·ViI·· t;II~N\i{Ii'¥.'~:"" .~~. uti.,.... ~ ~~n~••fiMllo1,,(8) it ., .'a .petUl_':Uft4__ .

_11._19 It~~8Itn'1V"'''., tu, «\11 .11•• ~ft;~ ..

D '~1· :~..•• &. ~1.. 0t'_ --llIIiiIo: ~"w"l ·.I ··R.~." ¥ ..~ ' W,if ~ ~.. ¥ .' 9~' ~MiI!i... . ;' ~.. '"

".tGi ,.t the 1J.ftlftftt.,ot' Dlatos.aJ1.._ :tt i,'i

tt'-tll1t. ~o· Nt~'. QI ttilftOft t:Ofhfat- __ ,*'J.Dadtt"~,I. '1 0 ~. - ·~·11"'1 .t.'~t .-tmllt:l.. to 1. 1 t a.(1).... ·.f 7 '" ,. ~~"'II'. '0 •.• ' $f'" .. ,',. ...~~. . .. ". .ll!;. . ~

:In ....'~.U~. 11 ...... o'bJ••t.~l>1.._J,....,l' CIm

"* 'I..tbat_. ~ .~ S ; _ ..1. or 1,0.1'. .t..-mpondl, ~c

A.%..s.C••n ..1>••' .....,et '.,OOO,.t ·,.-tonjl,'j'OOt pal ehqzt

11M 40 ·000 ~.•t Y-M.:WftNl';.. ~-t *,.(1) ........ · -'"'~ tMt! f., .01. • mto;.. .......:iF'!"'.. ..~o""" if" .' ~dt ...,,~. . ..,0 .

w:lln .tiP,. • _1.14. ~Iht ."1_b~ f.tnaM••~, M

a" ., 23.COO pi tat••l., .-,:000 flj_..ln<.~ M«. Ui@ ,.-. ~- '-""----

tn ~ln8'Il.~" ,I,.. .'.ot. 11 '1 :t 'I.. W'tb tMIf'-M~ : ••··\1.t',~t~ ~t , .... -.tt~ ,wanta taI16•• 61.-_._...~~ ra . ... .. ..' D.. . .'. ~'<" ..• ': ' •..• ' . .. .' ... '.' ~.~..

fbiM~.. ~.. tttiob ~"."tta11"'.1•• 30~t WhOlle4uiP a.,

Pl*lvlou1rQ.w.l1~ltV .".t'lI Itn,•.., n......*~~~7

~~·.tNU. "'.t.lltbOWf 1ftQ~ ••• teat ,~. to1'f1"fti.tlpD tkt: '~ot.lbtl~t~! _ all.ltJa tb.:.'1.1oWIble. ...~.t~.,

.~ .- ..-

A.I.S .. C.

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

.,. be al1.-a _t1\oat t.~ _tel\'''' .,tng~A_.f_

I;tltho1'." ~.... btI''-~ t_ ,t ,l'Udt a IOftftMl-.t."Jal

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'.·.

~

>-

>',.

..~

0..

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

40fm8:ftlona,lt _ .. 'Me: ,.~_~~..t1.801.Hl.

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