IS 1024: Code of practice for use of welding in bridges and structures subject to dynamic loading

21 Pages·1999·1.9 MB·English

by  Bureau of Indian Standards

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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 1024 (1999): Code of practice for use of welding in
bridges and structures subject to dynamic loading [MTD 12:
Welding Applications]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

IS 1024 : 1999

v7??%?m
h&an Standard
USE OF WELDING IN BRIDGES AND
STRUCTURES SUBJECT TO DYNAMIC
LOADING - CODE OF PRACTICE
(S econd Revision )
ICS 25.160.10: 93.040

0 BIS 1999
. BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARC
NEW DELHI 110002

E-huwy 1999 Price Group 7
gnidleW snoitacilppA lanoitceS ,eettimmoC DTM 12
DROWEROF
sihT naidnI dradnatS dnoceS( )noisiveR was adopted yb the uaeruB of naidnI ,sdradnatS after the draft dezilanif
yh the gnidleW snoitacilppA lanoitceS eettimmoC had neeb devorppa yb the lacigrullateM gnireenignE noisiviD
.licnuoC
sihT dradnats was tsrif dehsilbup ni 1968 dna yltneuqesbus desiver ni 1979. elihW gniweiver the dradnats
ni the thgil of ecneirepxe deniag gnirud these ,sraey the eettimmoC dediced ot esiver ti ot gnirb ni enil htiw
the lncscrp secitcarp ,nieh u dewollof yh the naidnI .yrtsudnI
nI siht noisiver gniwollof segnahc evah neeh :edam
a) Scope of dradnats has nech deifidom yb gnidulcni ,launam citamotua-imes dna citamotua latem arc
gnidlew processes.
)b secncrclcR ot naidnI sdradnatS evah neeb .detadpu
c) sliatcD of gnidlew selbamusnoc evah neeb added
d) ngiseD of dcdlcw stnioj dna gnidlew serudeco-tp evah neeb .deifidom
e) gnidleW ni dilos bew sredrig evah ncch dedulcni
nI 1111s ,noisiver ccnatsissu has neeh devired morf the :gniwollof
a) SB : 3SI Parts 3 B dna 4 B : 1972 noitacificepS‘ for leets redrig ,segdirb Part B3 Stresses, dna Part
JB ngiseD dna ,’noitcurtsnoc deussi yh the hsitirB sdradnatS .noitutitsnI
)b dedleW egdirB Code, 1972 ‘Code of ecitcarp for latem arc gnidlew ni dlim leets segdirb gniyrrac
rail, rail-cum-road or pedestrian ,’ciffart deussi yb naidnI .syawliaR
toTI the esoprup of gnidiced whcthcr a ralucitrap tnemeriuqer of siht dradnats si deilpmoc ,htiw the lanif ,eulav

dc:\-tcsbo or .detaluclac gnisserpxe the tluser of a test or ,sisylana llahs he dednuor off ni ecnadrocca htiw
SI 1 : 0691 seluR‘ for ,nidnuor (7 off laciremun seulav .‘~tesivrr( ehT rebmun of tnacifingis secalp deniater
ni the dednuf-I off eulav dluohs he the emas as that of the deificeps eulav ni siht .dradnats
IS 1024 : 1999
Standard
h&km
USEOF WELDING IN BRIDGES AND
STRUCTURES SUBJECT TO DYNAMIC
LOADING - CODE OF PRACTICE
(S econd Revision )
1 SCOPE IS No. Title
1.1 sihT dradnats srevoc the esu of ,launam -imes 4353 : 1995 degrembuS arc gnidlew of dlim leets
citamotua dna citamotua cra-latem gnidlew processes dna wol yolla sleets -
ni the noitacirbaf of leets segdirb dna serutcurts tcejbus snoitadnemmoceR @rsr revision)
ot cimanyd gnidaol yb .gnidlew
5760 : 1983 desserpmoC nogra (first revision)
1.2 sihT dradnats osla seilppa ot the ,ngised tnereffid 6419 : 1996 gnidleW rods dna erab sedortcele
stresses ot eb deredisnoc for the ,ngised dna for gas dedleihs arc gnidlew of
noitcurtsnoc of the .segdirb larutcurts leets tsrif( revision)
7280 : 1974 Bare eriw sedortcele for degrembus
1.3 ehT gnidlew erudecorp for siht dradnats llahs
arc gnidlew of larutcurts sleets
ylppa ot SI :5959 699I lateM‘ arc gnidlew of nobrac
dna nobrac esenagnam snoitadnemmoceR--sleets rsriy 7307 lavorppA tests of gnidlew :serudecorp
.‘)noisiver (Part :)1 1974 Part 1 noisuF gnidlew of leets
1.4 llA the snoisivorp stated for the noitcepsni 7310 lavorppA tests for sredlew gnikrow
of welds in SI :228 1970 ‘Code of erudecorp for (Part 1) : 1974 ot devorppa gnidlew :serudecorp
noitcepsni of ,’sdlew llahs eb elbacilppa ni noitcnujnoc Part 1 noisuF gnidlew of leets
htiw the snoisivorp of siht .dradnats
7318 lavorppA tests for sredlew nehw
2 REFERENCES (Part )I : 1974 gnidlew erudecorp lavorppa si ton
:deriuqer Part 1 noisuF gnidlew of
ehT gniwollof naidnI sdradnatS niatnoc snoisivorp leets
,hcihw hguorht ecnerefer ni siht test etutitsnoc
:0058 1991 larutcurtS deyollaorcim-leets
snoisivorp of siht .dradnats tA the emit of ,noitacilbup
muidem( dna hgih htgnerts
the snoitide detacidni were .dilav llA sdradnats are
)seitilauq Cfirsr revision)
tcejbus ot noisiver dna seitrap ot stnemeerga desab

no siht dradnats are degaruocne ot etagitsevni the 9595 : 1996 lateM arc gnidlew of nobrac dna

ytilibissop of gniylppa the tsom tnecer snoitide of the nobrac esenagnam sleets -
sdradnats detacidni :woleb snoitadnemmoceR rsriy revision)
SI No. eltiT :87101 1995 CO, gas dedleihs latem arc
gnidlew of larutcurts sleets -
307 : 669I nobraC edixoid dnoces( revision)
snoitadnemmoceR ifirst revision)
812 : 1957 yrassolG of smret gnitaler ot
gnidlew dna gnittuc of slatem 3 TERMINOLOGY
814 : 1991 derevoC sedortcele for latem arc roF the esoprup of siht ,dradnats the snoitinifed
gnidlew of larutcurts leets @$t nevig ni SI 8 12 llahs .ylppa
revision)
4 MATERIALS
822 : 1970 Code of erudecorp for noitcepsni
of sdlew
4.1 leetS
1395 : 1982 Low dna muidem yolla leets
derevoc sedortcele for manual latem llA sleets for the noitacirbaf of larutcurts ,srebmem
arc gnidlew (third revision) snoitcennoc dna snoitces llahs eb of elbadlew ytilauq
gnimrofnoc ot SI 2062, SI 8500 dna sti tnelaviuqe
2062 : 1992 leetS for lareneg larutcurts
gnivah a mumixam nobrac tnelaviuqe of 0.53 nehw
sesoprup (fourth revision)
detaluclac yb gnisu the :alumrof
4791:3163 ecnatpeccA tests for eriw - xulf
nobraC
snoitanibmoc for degrembus arc
nM uC+iN+V+oM+rC
gnidlew of larutcurts sleets (first tnelaviuqe = +-+C
revision) 6 5 15

I
.
IS 1024 : 1999
4.2 Welding Consumables dluohs eb detamitse yb the reenigne ni the thgil of
elbaliava data gnidrager the elbaborp ycneuqerf of
4.2.1 Electrodes for Manual Metal Arc Welding each epyt of .gnidaol
(MMA W)
5.2.2 nI order ot wolla for the effect of itaf eu the
erudecorp set nwod ni 5.3 llahs eb ewollof % , gnisu
Covered sedortcele llahs mrofnoc ot SI 814 dna
the noitamrofni deilppus ni selbaT 1 ot 7. esehT selbat
SI 1395 as .etairporppa evig the mumixam elbawolla stresses f for tnereffid
seulav of fM,,/fM dna a,,N, , or ,ylesrevnoc seulav of N
4.2.2 eriW and Flux for Submerged Arc Welding (SAW) for tnereffid seulav offM,. ehT snoitaton desu tneserper
the :gniwollof
relliF seriw llahs mrofnoc ot SI 7280. ehT eriw dna
xulf noitanibmoc llahs mrofnoc ot SI 3613 dna f = mumixam elbawolla elisnet or evisserpmoc
SI 4353, as .etairporppa gnikrow stress,
fMin = muminim stress ni the tnemele gnirud a
4.2.3 Filler Rods, Wires and Shielding Gases for Gas
ralucitrap stress ,elcyc
Shielded Metal Arc Welding AMG( W)
fM;u= mumixam stress ni the tnemele gnirud the
ehT rellif rods or eriw for dedleihs erudecorp llahs emas stress ,elcyc dna
mrofnoc ot SI 6419. sedortcelE for dedleihsnu or fles
dedleihs serudecorp are yllareneg of the cored epyt N = elbawolla rebmun of snoititeper of siht stress
dna llahs tisoped dlew latem htiw lacinahcem seitreporp .elcyc
ton ssel naht those deificeps as yrotcafsitas for the
5.3 Allowable Working Stresses
ralucitrap grade of leets gnieb .dedlew ehT gnidleihs
gases yam eb nogra gnimrofnoc ot SI 5760 or CD2 5.3.1 nI the case of srebmem detcejbus ot a rebmun
gnimrofnoc ot SI 307. ehT esu of gas erutxim SI of snoititeper n, of a elgnis stress ,elcyc the elbawolla
,elbissimrep dedivorp yeht evah neeb devorp ot eb gnikrow stresses llahs eb those nevig ni selbaT 1 ot
.yrotcafsitas nehW a gas erutxim si desu hcihw has 7, gnikat n = N dna f = . nI hcus cases, fi the stress
deificeps ,snoitidda the noitairav of hcus snoitidda level of fMu si &ams t t na the elbawolla stress f
llahs ton exceed Ol+ tnecrep of the stated. deificeps for 10’ ,selcyc eugitaf deen ton eb .deredisnoc
5.3.2 nI the erom lareneg case of srebmem detcejbus
5 NOITAUTCULF FO SESSERTS )EUGITAF(
ot a stress ,murtceps that si ot rebmun of ,selcyc ,,n
n,, etc, tnereffid mumixam stress slevel f,, f2, etc, or
5.1 General
of tnereffid soitar of fM,n ./ ._ for M: ,htob,x the gniwollof
ngised dohtem llahs eb used:
llA larutcurts sliated llahs eb dengised ot ,diova as
far as ,elbissop stress snoitartnecnoc ylekil ot tluser
4 llA selcyc htiw a mumixam stress lauqe ot oc
ni evissecxe noitcuder of the eugitaf htgnerts of rewol naht the elbawolla stress detouq foe swlC
srebmem or .snoitcennoc Care llahs eb nekat ot diova G yt e snoitcennoc ni elbaT 7 for ”ol selcyc
neddus egnahc of shape of a rebmem or part of a dna F or the tnaveler oitar of fM,JfM llahs,, eb
,rebmem yllaicepse ni snoiger of elisnet stress or lacol .derongi
yradnoces ,gnidneb dna steps llahs eb nekat ot diova
b) erehW the gnidaol snoitidnoc do ton evi esir
cimanydorea dna ralimis .snoitarbiv
ot spuorg of ylraelc denifed stresses, la P semerts
reater naht the elbawolla stress deniatbo morf
5.2 Loads and Stresses to be Considered
-! elba 7 - ssalC ,G as denifed ni (a), llahs eb
dedivid otni tsaelta evil detceles evitatneserper
gnikroW stresses llahs eb ,decuder where ,yrassecen stress slevel yletamixorppa yllauqe spaced
ot wolla for the effects of .eugitaf ecnawollA for neewteb the muminim dna the mumixam of the
eugitaf llahs eb edam for snoitanibmoc of stresses eud stresses ot eb .deredisnoc
ot dead ,daol evil ,daol ,tcapmi gnihcrul dna lagufirtnec
force, gnidulcni yradnoces stresses eud ot yticirtnecce )c roF each of the stress selcyc the mumixam
elbawolla rebmun of selcyc N,, N,, etc, llahs
of snoitcennoc dna tnioj-ffo gnidaol ni decittal
eb denimreted morf selbaT 1 ot 7 yb
.serutcurts Stresses eud ot ,dniw erutarepmet dna
gnitalopretni the ,seulav fi .yrassecen
lanidutignol dna gnison force, dna yradnoces stresses
due ot citsale snoitamrofed dna tnioj ,ytidigir yam eb
NOTE - If the stress level under consideration ,f,,, is smaller
derongi ni gniredisnoc .eugitaf
than the allowable working stress ,f specified for IO” cycles,
the relevant value of N may be found by extrapolating the
5.2.1 stnemelE of a erutcurts yam eb detcejbus ot a design tables for the pnrticular detail and value of .jM,JMu
yrev egral yteirav of stress selcyc gniyrav htob ni by means of the formula:
egnar $JM~J dna ni .edutingam f,, of mumixam
stress. Each tnemele of the erutcurts dluohs eb dengised J-og,Jn - LogwL
for the rebmun of selcyc of tnereffid sedutingam of Log,,, N = +8
LogJ, - Lo&J”
stress ot hcihw that tnemele si elbail ot eb detcejbus
gnirud the expected efil of the .erutcurts ehT rebmun where f, dna f, are the elbawolla stresses for 10’
of selcyc of each edutingam dluohs eb detamitse yb
dna xol selcyc ,ylevitcepser as nevig ni selbaT
the reenigne ni the thgil of selcyc of each edutingam 1 ot 7.
SI 1024 : 1999
d) gnitangiseD the expected rebmun of selcyc for naht deep noitartenep ,sedortcele dedivorp
each stress level ,,n ,2n etc. the tnemele llahs that lla snur are edam ni the nwod dnah
eb dengised so :taht noitisop dna that there si on .gnittucrednu
sihT does ton edulcni sdlew edam no a
n n n
L- + 2- + . . . . . . . . . . . . . 2 > 1 gnikcab pirts fi the gnikcab pirts si tfel
N, % Y ni .noitisop
5.3.3 rednU on secnatsmucric llahs the cisab )2 srebmeM detacirbaf htiw lluf noitartenep
elbissimrep stresses nevig ni the tnaveler naidnI esrevsnart ttub ,sdlew other naht those ni
dradnatS snoitacificepS for the ralucitrap epyt of ,)l( dna gnivah the dlew tnemecrofnier
erutcurts or rewol stresses deriuqer yb other sesualc dressed hsulf dna htir?\ on .gnittucrednu
ni hcus sdradnats eb exceeded.
3) srebmeM htiw suounitnoc lanidutignol
5.4 sessalC of Construction sliateD tellif sdlew htiw pots-trats noitisop nihtiw
the htgnel of the .dlew
nI selbaT I ot 7 the seulav of elbawolla gnikrow
stresses are nevig yletarapes for the sessalc of sliated e) Class E
stated :woleb
)1 srebmeM detacirbaf htiw esrevsnart ttub
Class A ,sdlew other naht those denoitnem ni
5.4(d), or htiw esrevsnart ttu,b sdlew edam
srebmeM dktacirbaf htiw suounitnoc lluf no a gnikcab .pirts
noitartenep lanidutignol or esrevsnart ttub
sdlew htiw the tnemecrofnier dressed hsulf )2 srebmeM detacirbaf htiw lluf noitartenep
htiw the etalp ecafrus dna the dlew devorp mroficurc ttub sdlew (see .)1.giF
free morf defects yb evitcurtsed-non /-CLASS E STRESS
,noitanimaxe dedivorp osla that the srebmem
REFERS TO THIS MEMBER
do ton evah exposed gas tuc edges.
sdleW llahs eb dressed hsulf yb gninihcam -7R- LOADIS TRANSMITTED
or ,gnidnirg or ,htob hcihw llahs eb dehsinif DIRECTLY THROUGH
.ni the noitcerid lellarap ot the noitcerid of the THE CENTRAL PLATE
deilppa stress.
b) Class B
srebmeM detacirbaf htiw suounitnoc NOTE - The stressesf o be considered are in all cases the
nominal stresses at the points marked ‘X’.
lanidutignol ttub sdlew htiw lluf
noitartenep edam htiw rehtie degrembus FIG. 1 CLASS E LIJIF PENETRATION
or gas dedleihs latem arc citamotua process CRUCIFORMB urr WELD
tub htiw on etaidemretni pots-trats
snoitisop nihtiw the dlew .htgnel f, Class F
srebmeM detacirbaf htiw suounitnoc )1 srebmeM htiw T epyt lluf noitartenep

lanidutignol tellif dlew edam htiw rehtie ttub sdlew (see .giF 2).

degrembus or gas dedleihs latem arc
)2 srebmeM htiw tnettimretni lanidutignol
citamotua process tub htiw on etaidemretni
or esrevsnart daol-non gniyrrac tellif or
pots-trats snoitisop nihtiw the dlew .htgnel
ttub ,sdlew except for the sliated derevoc
NOTE - If a ‘stop’ should Fccidentally occur m a weld which ni ssalC G (see .giF 2).
is supposed fo be free of start-stop positions, the weld crater
shall be chipped or machined back in the form of a taper 3) srebmeM detcennoc yb esrevsnart daol
over a length of at least eight times the weld size, and the gniyrrac tellif ,sdlew except as nwohs ni
weld shall then be restarted at the top of the tapered slope.
.giF 3.
On completion, Ihe surface of the weld at the start-stop position
shall bc ground smooth. The object of this procedure is lo 4) srebmeM htiw duts .srotcennoc
elimmate the possibility of lack of fusion or trapped slag at
the weld root and a change of shape of longitudinal surface
profile of the weld. g) Class G
)c ssalC c jl srebmeM detcennoc yb lanidutignol daol
srebmeM detacirbaf htiw suounitnoc gniyrrac tellif sdlew eus( .giF .)A3
lanidutignol ttub sdlew gnidulcni detacirbaf
)2 srebmeM detcennoc yb daol gniyrrac
smaeb htiw lluf bew noitartenep of the bew
mroficurc tellif sdlew (see .giF 3B).
ot egnalf ,sdlew htiw pots-trats noitisop nihtiw
the htgnel of the .dlew 3) srebmeM htiw tnettimretni daol-non
gniyrrac tellif or ttub dedlew stnemhcatta
)d ssulC D
no or tnecajda ot rieht edges (see .giF 3C).
I) . srebmeM detacirbaf htiw lluf noitartenep NOTE - In Classes F and G, a weld is considered as load-
esrevsnart ttub sdlew edam ni the shop carrying. with respect lo the member under consideration. if
yb launam gnidlew htiw sedortcele other it transmits a major part of the total load in the member.
3
54.1 Except where yllacificeps stated ot the ,yrartnoc
the elbawolla stresses for yna ralucitrap liated are the
emas for htob dlim dna hgih elisnet .leets ,revewoH
the elbawolla gnikrow stress rednu eugitaf yam exceed
the cisab elbissimrep stress for dlim ,leets ni hcihw
secnatsmucric hgih elisnet sleets yam eb .suoegatnavda
nI gningised for eugitaf ,snoitidnoc the sessalc of dlew
dluohs eb ylraelc .deificeps erehW eht class fo dlew
.a is ton ,deificeps eht gnidlew erudecorp dluohs eb deerga
STRESS IF;
WEB AT ENDS OF STIFFENER yb eht .reenigne
TO WE8 WELDS (OR EQUALLY _
AT ANY OTHER ATTACHMENT
/TO A SHEAR LOADED MEMBER)
5.5 Load Carrying Fillet Welds
.-
IN THS CASE LOAD Ls
RESISTED BY BENMrG These sdlew llahs eb dengised hcus that the stress no
OF THE PLATE
the latot evitceffe area of tellif sdlew does ton exceed
the tnaveler serugif nevig ni elbaT 7 for ssalC G .sdlew
6 CISAB ELBISSIMREP SSERTS NI SDLEW
6.1 lareneG
ehT elbissimrep stress llahs ni on case exceed the
stresses dettimrep ni the tnaveler naidnI dradnatS
NOTE- The stressest o be considered nre in all cases the .snoitacificepS ecniS eugitaf htgnerts of dedlew
nominal stressesa t the points tnuked ‘X’. serutcurts sdneped nopu eht lanoitcurtsnoc ,sliated these
FIG. 2 TYPICAL CLASS F Wm DETAILS llahs eb dediced erofeb the elbissimrep stresses dna
yltneuqesnoc the ezis of srebmem dna dlew sezis are
.denimreted
6.2 Stresses eud ot dead ,daol evil daol dna ,tcapmi
stresses gnitluser morf erutavruc dna yticirtnecce of
track ni( case of )syawliaR dna yradnoces stresses
ylno llahs eb deredisnoc for effects eud ot .eugitaf
6.3 Butt Welds
3A lanidutignoL daoL gniyrraC telliF sdlWe Butt sdlew llahs eb treated as tnerap latem htiw a
ssenkciht lauqe ot throat ,ssenkciht dna the stresses
llahs ton exceed those ni the tnerap .latem

6.4 Fillet Welds

ehT cisab elbissimrep stress ni tellif sdlew desab no
a ssenkciht lauqe ot the throat ssenkciht llahs eb
100 .2mm/N
B3 daoL gniyrraC lanidutignoL dna esrevsnarT stelliF 6.5 Load gniyrrac tellif sdlew ni yllacimanyd dedaol
serutcurts llahs eb dengised so that the yradnoces
gnidneb stresses are ton decudortni (for ,elpmaxe elgnis
pal stnioj llahs ton eb .)desu
6.6 ehT elbissimrep stresses for dleif sdlew of
larutcurts srebmem llahs eb decuder ot 80 tnecrep of
those deificeps ni 6.3 dna 6.4. dleiF sdlew llahs ton
eb adopted for segdirb gniyrrac yawliar/daor sgnidaol
tuohtiw the cificeps lavorppa of tnetepmoc .ytirohtua
6.7 fI daeh-revo sdlew are ,elbadiovanu the stresses
dettimrep llahs eb 80 tnecrep of those deificeps ni 6.3
3C telliF ro ttuB sdlWe no ro tnecajdA ot eht segdE fo
dna 6.4 dna deifidom yb 6.6, fi dleif gnidlew si
ssertS setalP
.devlovni
NOTE-The stressest o be considered are in all uses the
nominnl \trc’sse\ ilt the points marked ‘X’. 6.8 nI serutcurts detcejbus ot cimanyd ,gnidaol elisnet
or shear stresses ni ttub sdlew llahs ton exceed 66
.GIF .3 TYPICAL CLASS G WELD DETAIL S tnecrep of the elbissimrep stresses as deificeps ni 6.3
4
IS 1024 : 1999
dna as deifidom yb 6.6 dna 6.7 as ,elbacilppa sselnu 8.2.1 elihW gningised dedlew ,stnioj noitnetta llahs
the sdlew are denimaxe yb elbatius TDN .euqinhcet eb diap ot the gniwollof :stniop
a) noitcesretnI of sdlew llahs eb ,dediova
7 COMBINED STRESSES
)b Edge noitaraperp for ttub gnidlew dluohs eb
7.1 gnikroW stresses as nevig ni 5.3 are the lapicnirp dengised htiw a weiv ot gnisu muminim
stresses at the tniop rednu .noitaredisnoc ehT stresses dlew latem so as ot eziminim pu-dekcol stresses,
gnisira morf snoitanibmoc of ,gnidneb gniraeb dna
c) telliF sdlew gniyrrac lanidutignol shear llahs
shear stresses are detaluclac as nevig ni 7.2 dna 7.3.
ton eb regral ni ezis naht si yrassecen morf
7.2 Shear and Bending Stresses ngised ,snoitaredisnoc
d) Deep noitartenep tellif sdlew llahs eb desu
The tnelaviuqe stress f, eud ot a noitanibmoc of shear ni ecnereferp ot lamron tellif sdlew (see 8.4.2).
stressfq dna gnidneb stressf, ,elisnet orf, evisserpmoc dna
llahs eb detaluclac :morf
e) erehW dedlew stnemhcatta ni ylivaeh stressed
senoz are ,elbadiovanu the dlew eliforp llahs
egrem ylhtooms otni the tnerap .latem
8.3 Butt Welds
7.3 Shear, Bearing and Bending Stresses
ehT tnelaviuqe stress f, eud ot a noitanibmoc of shear 8.3.1 nI case of ttub ,sdlew fi there si a noitcuder
sserts- f,,, gniraeb stress fh dna gnidneb stress f,, elisnet ni the elbawolla gnikrow stress as deificeps ni 6.3,
or f,, evisserpmoc si detaluclac :morf noitaredisnoc llahs eb nevig ot etacol the ttub
dedlew stnioj yawa morf the ylivaeh stressed enoz so
L = dc+f; +fb, &+3f,‘) or k’ +f,’ -f, )‘,f3+,f as ot ,diova or ecuder yna esaercni ni the ezis of the
.rebmem
7.4 evitcepserrI of the elbissimrep esaercni of stress
nevig ni the tnaveler ,sdradnats the tnelaviuqe stress 8.3.2 llA sliated of ttub dedlew stnioj llahs eb ni
f. detaluclac as ni 7.2 dna 7.3 llahs ton exceed 0.9 ecnadrocca htiw SI 4353, SI 9595 dna SI 10178 as
k where F si the dleiy htgnerts of the .leets roF .elbacilppa tnettimretnI ttub sdlew as llew as etelpmocni
:ecneinevnic seulav of the f, for sleets gnimrofnoc
noisuf/noitartenep ttub sdlew llahs ton eb .desu
ot SI 2062 dna SI 8500 are nevig ;woleb
8.3.3 erehW a gnikcap si desu neewteb two parts,
Steel Conforming to F
the gnikcap dna the sdlew gnitcennoc ti ot each part
t&a
llahs eb elbapac of gnittimsnart the sdaol neewteb the
parts except where the gnikcap si too niht ot yrrac
SI 2062 230 215
the daol or timrep the noisivorp of etauqeda ,sdlew
240 225
nehw ti llahs eb demmirt hsulf htiw the edges of the
250 230
reworran part dna the daol llahs eb dettimsnart hguorht
IS 8500 280 245 the sdlew ,enola the sdlew gnieb desaercni ni ezis yb
330 295 na tnuoma lauqe ot the ssenkciht of the .gnikcap
340 310
350 330 8.3.4 tneiciffuS ytixevnoc ton gnideecxe 3 ,mm llahs
eb dedivorp as tnemecrofnier ot erusne lluf cross
8 DESIGN OF WELDED JOINTS lanoitces area at the .tnioj revewoH where a hsulf
ecafrus si ,deriuqer the ttub sdlew llahs eb dehsulf
8.1 cimanyD sdaol yam eb ,evititeper gnitautculf or dressed.
.elbisrever ehT factors ot eb deredisnoc ni the ngised
of srebmem dna dedlew stnioj :era 8.3.5 ttuB stnioj neewteb parts of lauqenu cross noitces
degnarra ni enil lliw tluser ni a lacol esaercni ni stress
a) rebmun of gnidaol ,selcyc dna
ni noitidda ot stress noitartnecnoc desuac yb the eliforp
of the dlew .flesti fI the stresses decudni yb these
)b lanoitcurtsnoc sliated ekil tnemegnarra dna
noitacol of ,stnioj mrof of the ,stnioj sruotnoc effects are ,elbatpeccanu the parts dluohs eb shaped
dna hsinif of .sdlew so as ot ecuder the stresses. erehW the ecnereffid
ni ssenkciht of the parts exceed 25 tnecrep of the
8.1.1 Stress ,sresiar hcus as evissecxe or etauqedani ssenkciht of the rehniht part or 3 ’mm revehcihw si
,tnemecrofnier sharp tnartneer ,selgna neddus egnahc greater, the snoisnemid of the rediw or rekciht part
of ,snoitces latnedicca ,stned arc ,sekirts dedlew
llahs eb decuder at the ttub stnioj ot those of the
stnemhcatta ni ylhgih stressed ,senoz ralugna ,sehcton
rellams part, the epols gnieb ton steeper naht 1 ni 5.
hguor emalf tuc edges, gnittucrednu ni ,gnidlew gals
snoisulcni dna etelpmocni ,snoitartenep lliw esuac
8.4 telliF sdleW
noitcuder ni eugitaf .htgnerts hcuS stress sresiar ,dluohs
therefore, eb dediova where hcus noitcuder ni htgnerts
8.4.1 nI case of tellif ,sdlew where noitcuder ni
yam esuac eruliaf of the .erutcurts
gnikrow stress ni dlew stluser ni regral ,sdlew
8.2 ehT ngised of sdlew llahs yllareneg eb ni noitaredisnoc llahs eb nevig ot tfihs the tnioj ni order
ytimrofnoc htiw SI 9595. ot diova or ecuder the stress.

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