More Related Content Similar to 11. displacement method of analysis slope deflection equations Similar to 11. displacement method of analysis slope deflection equations (20) More from Chhay Teng (20) 11. displacement method of analysis slope deflection equations1. Department of Civil Engineering NPIC
!!> karviPaKtamviFIbMlas;TI³ smIkar slope-deflection
Displacement method of analysis: Slope-deflection equations
emeronenHnwgerobrab;y:agsegçbnUveKalKMnitsMrab;viPaKeRKOgbgÁúMedayeRbIviFIbMlas;TI.
eRkayeBlbgðajBIeKalKMnit eyIgnwgbegáItsmIkarTUeTAén slop deflection ehIybnÞab;mkeyIg
nigeRbIvaedIm,IviPaKFñwm nigeRKagminkMNt;edaysþaTic.
!!>!> viFIsaRsþTUeTAkñúgkarviPaKtamviFIbMlas;TI
(Displacement method of analysis: General procedures)
rcnasm<½n§TaMgGs;RtUvEtbMeBjtMrUvkarsmIkarlMnwg TMnak;TMngrvagbnÞúk nigbMlas;TI nigRtUv
bMeBjtMrUvkarlkçxNÐRtUvKñaénbMlas;TIedIm,IFananUvsuvtßiPaBrbs;va. enAkñúgkfaxNÐ 10.1 )anerobrab;
fa eKmanviFIBIrepSgKñaedIm,IbMeBjtMrUvkarTaMgenHenAeBlviPaKeRKOgbgÁúMminkMNt;edaysþaTic. viFI
kmøaMg ¬emeronTI !0¦ Ep¥kelIkarkMNt;kmøaMgEdlCaGBaØatelIs bnÞab;mkbMeBjtMrUvkarlkçxNÐRtUvKña
rbs;rcnasm<½n§. eKeFVIrebobenHedaysresrsmIkarbMlas;TIeGayTak;TgnwgkmøaMgedayeRbITMnak;TMng
rvagkmøaMg nigbMlas;TI. dMeNaHRsayénsmIkarers‘ultg;CakmøaMgRbtikmμEdlCaGBaØatelIs bnÞab;
mkeKeRbIsmIkarlMnwgedIm,IkMNt;kmøaMgRbtikmμEdlenAsl;EdlmanGMeBIelIeRKOgbgÁúM.
viFIbMlas;TICaviFIEdlmanlkçN³pÞúyeTAnwgviFIkmøaMg. dMbUgvaRtUvbMeBjtMrUvkarsmIkarlMnwg
sMrab;rcnasm<½n§. edIm,IeFVIEbbenH eKRtUvsresrbMlas;TIEdlCaGBaØateGayTak;TgnwgbnÞúkedayeRbI
TMnak;TMngrvagkmøaMg nigbMlas;TI. eRkayeBlTTYl)anbMlas;TIrYcehIy eKGackMNt;kmøaMgEdlCa
GBaØatBIsmIkarlkçxNÐRtUvKñaedayeRbITMnak;TMngrvagkmøaMg nigbMlas;TI. RKb;viFIbMlas;TITaMgGs;
GnuvtþtamviFIsaRsþTUeTAenH.
Degrees of freedom enAeBleRKOgbgÁúMrgkmøaMg cMNucCak;lak;enAelIeRKOgbgÁúMEdleKeGay
eQμaHfa node nwgrgbMlas;TI. bMlas;TITaMgenHRtUv)aneKKitCa degrees of freedom sMrab;eRKOgbgÁúM
ehIyenAkñúgviFIbMlas;TIeKcaM)ac;RtUvkMNt; degrees of freedom TaMgenH edaysarvanwgkøayCaGBaØat
enAeBleKGnuvtþviFIbMlas;TI. cMnYnénGBaØatTaMgenHCadWeRkénPaBminkMNt;edaysarsIueNm:aTicrbs;
eRKOgbgÁúM.
edIm,IkMNt;PaBminkMNt;edaysIueNma:Tic eKGacKitvaeRKOgbgÁúMpÁúMedayes‘rIénGgát;EdltP¢ab;
Kñaedaysar node EdlCaTUeTAvasßitenARtg;tMN TMr enAxagcugrbs;Ggát; b¤enARtg;kEnøgbMlas;bþÚrmux
kat;Pøam²rbs;Ggát;. enAkñúglMhr (three dimensions), node nImYy²GacmanbMlas;TIlIenEG‘rcMnYn
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -378
2. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
BIr nigbMlas;TImMucMnYnmYYy. elIsBIenH eKGacTb;bMlas;TIrbs; node edayTMr b¤edaykarsnμt;Edl
Ep¥kelIkareFVIkarrbs;eRKOgbgÁúM. Ca]TahrN_ RbsinebIeRKOgbgÁúMCaFñwm ehIyeKBicarNaEtkMhUcRTg;
RTayEdlbNþalBIm:Um:g;Bt; enaHvaminmanbMlas;TIlIenEG‘rtambeNþayG½kSrbs;FñwmeT edaysar
bMlas;TI enHbNþalBIkMhUcRTg;RTayedaysarkmøaMgtamG½kS. edIm,IbBa¢ak;BIeKalKMnitenH eyIgnwg
BicarNa]TahrN_xøH edaycab;epþImCamYynwgFñwmenAkñúgrUbTI 11-1a. enATIenH RKb;bnÞúk P Edl
GnuvtþeTAelI FñwmnwgeFVIeGay node A vilEtb:ueNÑaH ¬edayecalkMhUcRTg;RTaytamG½kS¦ cMENkÉ
node B RtUv)an Tb;mineGaycl½tEtmþg. dUcenH FñwmmanEt degree of freedom EtmYyKW θ A ehIy
vaCaeRKOgbgÁúMmin kMNt;edaysIueNm:aTicdWeRkTImYy. FñwmenAkñúgrUbTI 11-1b man node enARtg; A /
B nig C dUcenHva man degree of freedom cMnYnbYn EdlkMNt;edaymMurgVil θ A / θ B / θ C nigbMlas;
TItamTisQr ΔC . vaCaeRKOgbgÁúMminkMNt;edaysIueNma:TicdWeRkTIbYn. LÚvBicarNaeRKagenAkñúgrUbTI
11-1c. mþgeTot RbsinebIeyIgecalkMhUcRTg;RTaytamG½kSrbs;Ggát; bnÞúk P EdlGnuvtþeTAelI
eRKagGaceFVIeGay node B nig C vil ehIy node TaMgenHGacpøas;TItamTisedkedaybrimaNesμIKña.
dUcenH eRKagman degree of freedom cMnYnbIKW θ B / θC nig Δ B ehIyvaCaeRKOgbgÁúMminkMNt;eday
sIueNm:aTicdWeRkTIbI.
Cakarsegçb karkMNt;PaBminkMNt;edaysIueNma:Tic b¤cMnYnrbs; degree of freedom sMrab;
eRKOgbgÁúMCaCMhancaM)ac;bMputEdleKRtUveFVImuneK enAeBlGnuvtþviFIbMlas;TI. vakMNt;nUvcMnYnGBaØat
EdlQrelIkarsnμt;EdlKitcMeBaHkMhUcRTg;RTayrbs;eRKOgbgÁúM. elIsBIenH enAeBlEdleKsÁal;
bMlas;TIrbs; node enaHeKnwgGackMNt;bMlas;TIrbs;eRKOgbgÁúM ehIyeKGacTTYl)ankMlaMgkñúgrbs;
Ggát;.
Displacement method of analysis: Slope-deflection equations T.Chhay -379
3. Department of Civil Engineering NPIC
!!>@> smIkar slope-deflection (Slope-Deflection equation)
viFIkmøaMgenAkñúgemeronTI!0 RtUvkarsresrsmIkarEdlTak;TgeTAnwgkmøaMg b¤m:Um:g;EdlCaGBaØat.
EteKminGaceRbIvasMrab;eRKOgbgÁúMminkMNt;EdlmandWeRkx<s;)aneT edaysareKRtUvkarbegáItsmIkar
lkçxNÐRtUvKñaeRcIn ehIyelIsBIenH smIkarnImYy²Tak;TgnwgGBaØatTaMgGs;EdleFVIeGayeKBi)akedaH
RsayRbB½n§smIkar elIkElgEteKeRbIkMuBüÚT½r. edaykareRbobeFob viFI slope-deflection minsμúK
sμajdUcviFIkmøaMgeT. dUcEdleyIg)aneXIj vaTamTarkargarticCag TaMgkarsresrsmIkar nigkar
edaHRsaysmIkaredIm,IrkbMlas;TI nigkmøaMgkñúg. ehIyelIsBIenH eKGacsresrkmμviFIkMuBüÚT½rCamYy
nwgviFIenHy:aggayRsYl ehIyeKGaceRbIvaedIm,IviPaKeRKOgbgÁúMminkMNt;eRcInEbb.
viFI slope-deflection RtUv)anbegáIteLIgdMbUgeday ehnrIc Em:ndWLa (Heinrich Manderla)
nig GUfU m: (Otto Morh) edIm,IsikSakugRtaMgbnÞab;bnSM (secondary stresses) enAkñúg trusses. eRkay
mk enAqñaM1915 CI eG EmnI (G.A. Maney) )aneFVIeGaybec©keTsenHkan;EtRbesIeLIg ehIyeRbIva
kñúgkarviPaKFñwm nigeRKagminkMNt;.
General Case eKeGayeQμaHviFIenHfa viFI slope-deflection edaysarGBaØatrbs;vaCamMurgVil nig
PaBdabEdlekIteLIgedaysarGMeBIrbs;bnÞúkmkelIrcnasm<½n§. edIm,IbegáItTMrg;TUeTAénsmIkar slope-
deflection eyIgnwgBicarNaElVgKMrU AB énFñwmCab;dUcbgðajenAkñúgrUbTI 11-2 EdlElVgenH rgGMeBIén
bnÞúkNamYy ehIyvaman EI efr. eyIgcg;eFVI
eGaym:Um:g;Bt;rbs;Fñwm M AB nig M BA man
TMnak;TMngnwg degree of freedom rbs;vaTaMgbI
eBalKW θ A / θ B nig Δ EdlGaceFVIeGayman
sMrutenAcenøaHTMr. enA kñúgkarbegáItrUbmnþ eyIg
Kitfam:Um:g; nigmMurgVilviC¢manenAeBlvaeFVIGMeBIeTA
elIFñwmtamTisRTnicnaLikavil ¬rUbTI 11-2¦.
elIsBIenH bMlas;TIlIenEG‘r Δ mantMélviC¢mandUcbgðajenAkñúgrUb edaysarbMlas;TIeFVIeGaymMψ rbs;
u
ElVgvilRsbTisRTnicnaLikavil.
eKGacTTYlsmIkar slope-deflection edayeRbIeKalkarN_tMrYtpledayBicarNaBicarNa
dac;edayELkBIKñarvagm:Um:g;EdlekItmanenARtg;TMrEdlbNþalBIbMlas;TInImYy² ¬ θ A / θ B nig Δ ¦
nigbnÞúk.
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -380
4. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
bMlas;TICamMuenARtg;cMNuc A/ θ ³ eKman node A énGgát;EdlbgðajenAkñúgrUbTI 11-3a manmMu
A
rgVil θ A ÉcMENk node B RtUv)anbgáb;. edIm,IkMNt;m:Um:g; M AB EdlcaM)ac;edIm,IeFIVeGaymanbMlas;TI
enH eyIgnwgeRbIviFIFñwmnimitþ. sMrab;krNIenH FñwmnimitþRtUv)anbgðajenAkñúgrUbTI 11-3b. cMNaMfa
kmøaMgkat;enARtg;cMNuc A' eFVIGMeBIeTAelIFñwmedaymanTisedAcuHeRkam edaysar θ A RsbRTnicnaLika.
PaBdabrbs;FñwmBitenAkñúgrUbTI 11-3a RtUvesμIsUnüenARtg; A nig B dUcenHplbUkm:Um:g;enARtg; A'
nig B' rbs;Fñwmnimitþk¾RtUvEtesμIsUnüEdr dUcenHeK)an
⎡ 1 ⎛ M AB ⎞ ⎤ L ⎡ 1 ⎛ M BA ⎞ ⎤ 2 L
+ ∑ M A' = 0 ⎢ 2 ⎜ EI ⎟ L ⎥ 3 − ⎢ 2 ⎜ EI ⎟ L ⎥ 3 = 0
⎣ ⎝ ⎠ ⎦ ⎣ ⎝ ⎠ ⎦
⎡ 1 ⎛ M BA ⎞ ⎤ L ⎡ 1 ⎛ M AB ⎞ ⎤ 2 L
+ ∑ M B' = 0 ⎢ 2 ⎜ EI ⎟ L ⎥ 3 − ⎢ 2 ⎜ EI ⎟ L ⎥ 3 + θ A L = 0
⎣ ⎝ ⎠ ⎦ ⎣ ⎝ ⎠ ⎦
BIsmIkarTaMgBIxagelI eyIgTTYl)anTMnak;TMngbnÞúk nigbMlas;TIdUcxageRkam
4 EI
M AB = θA (11-1)
L
2 EI
M BA = θA (11-2)
L
bMlas;TICamMuenARtg;cMNuc B/ θB ³ tam
rebobdUcKña RbsinebIcug B rbs;FñwmvileTA
rkTItaMgcug eRkay)an θ B ÉcMENkcug A
RtUv)anbgáb;Cab; ¬rUbTI 11-4¦ eyIgGac
sresrTMnak;TMngrvagm:Um:g; M BA eTAnwgmMu
rgVil θ B nigrvagm:Um:g;Rbtikmμ M AB enARtg;CBa¢aMg. lT§plKW
4 EI
M BA = θB (11-3)
L
2 EI
M AB = θB (11-4)
L
Displacement method of analysis: Slope-deflection equations T.Chhay -381
5. Department of Civil Engineering NPIC
bMlas;TIeFob/ Δ ³ RbsinebI node B rbs;Ggát;pøas;TIeFobeTAnwgcMNuc A dUcenHGgát;vilRsbTis
RTnicnaLika ¬bMlas;TIviC¢man¦ ehIycugTaMgBIGt;vl nigmanm:Um:g; nigkmøaMgkat;EdlmanTMhMdUcKñaEt
i
TisedApÞúyKñaekItmanenAkúñgGgát; ¬rUbTI 11-5a¦. dUcelIkmun eKGacP¢ab;TMnak;TMngrvagm:Um:g; M eTA
nwgbMlas;TI Δ edayeRbIviFIFñwmnimitþ. enAkñúgkrNIenH Fñwmnimitþ ¬rUbTI 11-5b¦ mancugTaMgBIresrI
edaysarFñwm ¬Ggát;¦ BitmanTMrbgáb;. b:uEnþ edaysarbMlas;TIrbs;FñwmBitenARtg;cMNuc B m:Um:g;enA
Rtg;cMNuc B' énFñwmnimitþRtUvEtman Δ dUcbgðaj . edayeFVIplbUkm:Um:g;Rtg;cMNuc B' eyIg)an
*
⎡ 1 ⎛ M ⎞ ⎤ 2L ⎡ 1 ⎛ M ⎞ ⎤ L
+ ∑ M B' = 0 ⎢ 2 ⎜ EI ⎟ L ⎥ 3 − ⎢ 2 ⎜ EI ⎟ L ⎥ 3 − Δ = 0
⎣ ⎝ ⎠ ⎦ ⎣ ⎝ ⎠ ⎦
− 6 EI
M AB = M BA = M = 2 Δ (11-5)
L
tamkarkMNt;sBaØa m:Um:g;enHGviC¢manedaysarvaeFVIGMeBIRcasRTnicnaLikaedIm,IeGayGgát;manlMnwg.
m:Um:g;bgáb;cug (Fixed-End Moment)³ enAkñúgkrNIelIkmun eyIg)anKitBITMnak;TMngrvagbMlas;
TInigm:Um:g;caM)ac; M AB nig M BA EdleFVIGMeBIenARtg; node A nig B erogKña. b:uEnþ CaTUeTAbMlas;TI
lIenEG‘r nigbMlas;TImMuén node ekItBIbnÞúkEdlmanGMeBIenAelIElVgrbs;Ggát; minEmnekItBIm:Um:g;Edl
manGMeBIenARtg; node eT. edIm,IbegáItsmIkar slope-deflection, eyIgRtUvbMElgbnÞúkEdlmanGMeBIenA
elIElVgeGayeTACam:Um:g;smmUlEdlmanGMeBIenARtg; node ehIybnÞab;mkeRbITMnak;TMngrvagbnÞúk nig
bMlas;TIedIm,IedaHRsay. eKGaceFVIvaeTA)anedayrkm:Um:g;RbtikmμTb;Tl;nwgbnÞúkEdlekItmanenARtg;
node. Ca]TahrN_ eKmanGgát;TMrbgáb;dUcbgðajenAkñúgrUbTI 11-6a EdlvargbnÞúkcMcMNuc P enARtg;
kNþalElVg. FñwmnimitþsMrab;krNIenHRtUv)anbgðajenAkñúgrUbTI 11-6b. edaysareyIgRtUvkareGay
mMurgVilenARtg;cugnImYy²esμIsUnü
⎡ 1 ⎛ PL ⎞ ⎤ ⎡ 1 ⎛ M ⎞ ⎤
+ ↑ ∑ Fy = 0 ⎢ 2 ⎜ 4 EI ⎟ L ⎥ − 2⎢ 2 ⎜ EI ⎟ L ⎥ = 0
⎣ ⎝ ⎠ ⎦ ⎣ ⎝ ⎠ ⎦
*
düaRkamm:Um:g;EdlbgðajenAlíFñwmnimitþRtUv)ankMNt;edayviFItMrYtplsMrab;FñwmTImrsamBaØ ¬dUckarBnül;enAkñúgkfaxNÐ4-5¦.
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -382
6. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
PL
M =
8
m:Um:g;enHRtUv)aneKehAfam:Um:g;bgáb;cug (FEM). cMNaMfa GaRs½ynwgkarkMNt;sBaØa vamantMélGviC¢-
manenARtg; node A ¬RcasRTnicnaLika¦ ehIyvamantMélviC¢manenARtg; node B ¬RsbRTnic
naLika¦. edIm,IgayRsYlkñúgkaredaHRsaycMeNaT eKRtUvKNnam:Um:g;bgáb;cugsMrab;kardak;bnÞúkdéT
eTot ehIyvaRtUv)anerobcMCatarag. edayeFVIplbUk FEM Edl)anKNnasMrab;cMeNaTCak;lak; ¬rUb
TI 11-7¦ eyIg)an
M AB = (FEM ) AB M BA = (FEM )BA (11-6)
smIkar Slope-Deflection³ RbsinebIeKbUkm:Um:g;cugEdlbNþalBIbMlas;TInImYy² ¬smIkar 11-1
rhUtdl; 11-5¦ CamYynwgm:Um:g;cugEdlbNþalBIbnÞúk ¬smIkar 11-6¦ enaHeyIgGacsresrm:Um:g;er-
s‘ultg;enAxagcugdUcxageRkam
⎛ I ⎞⎡ ⎛ Δ ⎞⎤
M AB = 2 E ⎜ ⎟ ⎢2θ A + θ B − 3⎜ ⎟⎥ + (FEM ) AB
⎝ L ⎠⎣ ⎝ L ⎠⎦
(11-7)
⎛ I ⎞⎡ ⎛ Δ ⎞⎤
M BA = 2 E ⎜ ⎟ ⎢2θ B + θ A − 3⎜ ⎟⎥ + (FEM )BA
⎝ L ⎠⎣ ⎝ L ⎠⎦
edaysarsmIkarTaMgBIrenHRsedogKña eKGacsresrsmIkareTalEdlGacbgðajsmIkarTaMgBIr
enH)an. edayykcugmçagrbs;ElVgCacugCit (near edd N) ehIycugmçageTotCacugq¶ay (far end F)
ehIyedayykkMrajrbs;Ggát;Ca k = I / L ehIymMurbs;Ggát;Caψ = Δ / L eyIgGacsresr
M N = 2 EK (2θ N + θ F − 3ψ ) + (FEM )N
sMrab;ElVgxagkñúg b¤ElVgxagEdlmancugq¶ayCacugbgáb; (11-8)
Displacement method of analysis: Slope-deflection equations T.Chhay -383
7. Department of Civil Engineering NPIC
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -384
8. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
Edl MN = m:Um:g;Bt;enAkñúgcugCitrbs;ElVg m:Um:g;enHviC¢man ¬RsbTisRTnicnaLika¦ enAeBlEdl
vamanGMeBIelIElVg.
E / K = m:UDuleGLasÞicrbs;sMPar³ nigkMrajrbs;ElVg k = I / L .
θ N / θ F = mMurgVil b¤bMlas;TImMurbs;cugCit nigcugq¶ayrbs;ElVgenARtg;TMr mMuenHmanxñatra:düg;
ehIyviC¢manenAeBlvavilRsbTisRTnicnaLika.
ψ = mMurgVilrbs;Ggát;bNþalBIbMlas;TIlIenEG‘r Edl ψ = Δ / L mMuenHmanxñatra:düg; ehIy
viC¢manenAeBlvavilRsbTisRTnicnaLika.
(FEM )N = m:Um:g;bgáb;cugenARtg;TMréncugCit m:Um:g;enHviC¢man ¬RsbTisRTnicnaLika¦ enA
eBlvamanGMeBIelIElVg. m:Um:g;bgáb;cugsMrab;lkçxNÐbnÞúkepSg²RtUv)anerobcMenA
kñúgtaragxagelI.
BIkarbkRsay smIkar11-8RtUv)ankMNt;edaysmIkarlkçxNÐRtUvKña nigTMnak;TMngrvagbnÞúk nig
bMlas;TIEdlBicarNaEteTAelIT§iBlm:Um:g;Bt; edaymin)anKitBIkMhUcRTg;RTayedaysarkmøaMgkat;
nigkMhUcRTg;RTayedaysarkmøaMgtamG½kS dUcenHeKKitvaCasmIkar slope-deflection TUeTA. enAeBl
eRbIvasMrab;edaHRsaycMeNaT eKRtUvGnuvtþsmIkarenHBIrdgsMrab;ElVgGgát; AB nImYy² eBalKWGnuvtþ
BI A eTA B nigBI B eTA A sMrab;ElVg AB enAkñúgrUbTI 11-2.
cugElVgRTedayTMrsnøak;³ eBlxøH cugElVgrbs;Fñwm b¤eRKagRtUv)anRTedayTMrsnøak; b¤TMrkl;enAcug
q¶ay ¬rUbTI 11-8a¦. enAeBlekItmankrNIEbbenH m:Um:g;enARtg;TMrkl; b¤TMrsnøak;RtUvEtesμIsUnü
enaHeKmincaM)ac;kMNt;bMlas;TImMu θ B enARtg;TMrenaHeT eKGacEkERbsmIkar slope-deflection TUeTA
dUcenHeKRtUvGnuvtþvaEtmþgKt;eTAelIElVg minEmnBIrdg. edIm,IeFVIEbbenH eyIgnwgGnuvtþsmIkar 11-8
b¤smIkar 11-7 eTAelIcugnImYy²rbs;FñwmenAkñúgrUbTI 11-8. CalT§pl eKTTYl)ansmIkarBIrdUcxag
eRkam
M N = 2 Ek (2θ N + θ F − 3ψ ) + (FEM )N
(11-9)
0 = 2 Ek (2θ F + θ N − 3ψ ) + 0
enATIenH (FEM )F esμIsUnüedaysarcugq¶ayCaTMrsnøak; ¬rUbTI 11-8b¦. elIsBIenH eKGacTTYl)an
(FEM )N ¬Ca]TahrN_¦ edayeRbItaragmU:m:g;bgáb;cugxagelI. edayKuNsmIkarTImYyxagelInwgBIr
ehIydkvaCamYynwgsmIkarTIBIr edIm,IsMrYl θ F enaHeyIg)an
M N = 3Ek (θ N −ψ ) + (FEM )N
sMrab;Etcugq¶ayrbs;ElVgRtUv)anRTedayTMrsnøak; b¤TMrkl; (11-10)
Displacement method of analysis: Slope-deflection equations T.Chhay -385
9. Department of Civil Engineering NPIC
edaysarm:Um:g;enAcugq¶ayesμIsUnü eKGnuvtþsmIkarenHEtmþgb:ueNÑaHsMrab;cugElVg. vasMrYlkarviPaK
edaysarsmIkarTUeTA ¬smIkar 11-8¦ TamTarkarGnuvtþBIrdgsMrab;ElVgenH edaysarvaBak;B½n§nwg
bMlas;TImMu θ B ¬b¤θ F ¦ enAcugTMr.
edIm,IsegçbkarGnuvtþsmIkar slope-deflection, cUrBicarNaFñwmCab;EdlbgðajenAkñúgrUbTI 11-
9 Edlman degree of freedom cMnYnbYn. enATIenH eKGacGnuvtþsmIkar 11-8 cMnYnBIrdgeTAelIElVg
nImYy² eBalKWBI A eTA B / BI B eTA A / BI B eTA C / BI C eTA B / BI C eTA D / nigBI D eTA C . smIkarTaMg
enHnwgBak;B½n§nwgmMurgVilθ A / θ B / θC nig θ D EdlCaGBaØat. b:uEnþ edaysarm:Um:g;cugenARtg; A nig D
sUnü enaHeKmincaM)ac;kMNt; θ A nig θ D eT. eKnwgTTYl)ankaredaHRsayxøICagRbsinebIeKGnuvtþ
smIkar 11-10 BI B eTA A nigBI C eTA D ehIybnÞab;mkGnuvtþsmIkar 11-8 BI B eTA C nig BI C eTA
B . smIkarTaMgbYnenHnwgBak;B½n§EtnwgmMurgVil θ B nig θ C EdlCaGBaØatEtb:ueNÑaH.
!!>#> viPaKFñwm (Analysis of beams)
dMeNIrkarkñúgkarviPaK (Procedure for analysis)
Degree of Freedom
bg;elx b¤GkSrRKb;TMr nigtMN (node) edIm,IkMNt;GtþsBaØaNénElVgrbs;Fñwm b¤eRKagEdlenAcenøaH
node. edayKUrrUbragdabrbs;rcnasm<½n§ eKmanlT§PaBkMNt;cMnYn degree of freedom. enATIenH
node nImYy²GacmanbMlas;TImMu nigbMlas;TIlIenEG‘r. eKRtUvrkrkSaPaBRtUvKñaenARtg; node edIm,IeFVI
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -386
10. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
eGayGgát;EdltP¢ab;edaytMNbgáb;enARtg; node rgbMlas;TIdUcKña. RbsinebIbMlas;TITaMgenaHCa
GBaØat eKKYrsnμt;eGayvaeFVIGMeBItamTisviC¢man edayeFVIeGayGgát; b¤tMNvilRsbTisRTnicnaLika
¬rUbTI 11-2¦.
smIkar Slope-Deflection
smIkar slope-deflection P¢ab;TMnak;TMngrvagm:Um:g;EdlCaGBaØatEdlGnuvtþenARtg; node CamYynwg
bMlas;TIrbs; nodes sMrab;ElVgTaMgGs;rbs;eRKOgbgÁúM. RbsinebIeKmanbnÞúkenAelIElVg eKRtUvKNna
FEM edayeRbItaragm:Um:g;cugEdleGayenAkñúgkfaxNÐ 11.2. ehIyRbsinebI node manbMlas;TI
lIenEG‘r Δ eKRtUvKNna ψ = Δ / L sMrab;ElVgEk,r. GnuvtþsmIkar 11-8 eTAelIcugrbs;ElVgnImYy²
edayeRbIsmIkar slope-deflection BIrdgsMrab;ElVgnImYy². b:uEnþ RbsinebIcugElVgénFñwm b¤eRKagCab;
CaTMrsnøak; GnuvtþsmIkar 11-10 EteTAelIcugEdlTb; ehIyeRbIsmIkar slope-deflection Etmþg
b:ueNÑaHsMrab;ElVg.
smIkarlMnwg
sresrsmIkarlMnwgsMrab; degree of freedom EdlCaGBaØatnImYy². eKRtUvsresrsmIkarTaMgenH
edayeRbIm:Um:g;Bt;EdlCaGBaØatdUcEdlkMNt;enAkñúgsmIkar slope-deflection. sMrab;Fñwm nigeRKag
sresrsmIkarlMnwgénm:Um:g;enARtg;TMrnImYy² nigsMrab;eRKagsresrsmIkarlMnwgénm:Um:g;Bt;Rtg;tMN.
RbsinebIeRKageyal b¤manPaBdabtamTisedk eKRtUvP¢ab;TMnak;TMngrvagkmøaMgkat;enAkñúgssreTA
nwgm:Um:g;enAxagcugrbs;ssr ¬nwgmanerobrab;enAkñúgkfaxNÐ 11-5¦.
CMnYssmIkar slope-deflection eTAkñúgsmIkarlMnwg ehIyedaHRsayrkbMlas;TIrbs;tMNEdl
CaGBaØat. bnÞab;mkeKRtUvCMnYslT§plTaMgenHeTAkñúgsmIkar slope-deflection edIm,IkMNt;m:Um:g;Bt;
enAxagcugrbs;Ggát;nImYy². RbsinebIlT§plmantémøGviC¢man mann½yfavavilRcasRTnicnaLika
cMENkÉm:Um:g; nigbMlas;TIviC¢manvilRsbRTnicnaLika.
]TarhN_ 11-1³ sg;düaRkamkmøaMgkat; nigdüaRkamm:Um:gsMrab;FñwmEdlbgðajenAkñúgrUbTI 11-
;
10a. EI Camantémøefr.
dMeNaHRsay³
smIkar slope-deflection
enAkñúg]TahrN_enHeKRtUvBicarNaElVgBIr. edaysarKμanElVgNamYymanTMrsnøak; b¤TMrkl; dUcenHeK
RtUvGnuvtþsmIkar 11-8. edayeRbIrUbmnþsMrab; FEM EdlerobcMenAkñúgtaragsMrab;bnÞúkRtIekaN
Displacement method of analysis: Slope-deflection equations T.Chhay -387
11. Department of Civil Engineering NPIC
wL2 6(6 )2
(FEM )BC =− =− = −7.2kN .m
30 30
2
6(6 )2
(FEM )CB = wL = = 10.8kN .m
20 20
cMNaMfa (FEM )BC GviC¢man edaysarvaeFVIGMeBIRcasRTnicnaLikaenARtg;cMNuc B . ehIy (FEM )AB
= (FEM )BA = 0 edaysarminmanbnÞúkenAelIElVg AB .
edIm,IsÁal;GBaØat ExSekageGLasÞicsMrab;FñwmRtUv)anbgðajenAkñúgrUbTI 11-10b. dUckar
bgðaj eKmanm:Um:g;Bt;EdlCaGBaØatcMnYnbYn. manEtmMurgVil θ B enARtg;cMNuc B b:ueNÑaHEdlCaGBaØat.
edaysar A nig C CaTMrbgáb; enaHθ A = θC = 0 . ehIy edaysarTMrminRsut ¬vaminmanbMlas;TIeLIg
elI b¤cuHeRkam¦ ψ AB = ψ BC = 0 . sMrab;ElVg AB ¬edayKitfa A CacugCit nig B Cacugq¶ay¦
eyIg)an
⎛I⎞
M N = 2 E ⎜ ⎟(2θ N + θ F − 3ψ ) + (FEM )N
⎝L⎠
⎛I⎞
M AB = 2 E ⎜ ⎟[2(0 ) + θ B − 3(0)] + 0 =
EI
θB (1)
⎝8⎠ 4
LÚvKitfa B CacugCit nig A Cacugq¶ay eyIg)an
⎛I⎞
M BA = 2 E ⎜ ⎟[2θ B + 0 − 3(0)] + 0 =
EI
θB (2)
⎝8⎠ 2
tamrebobdUcKña sMrab;ElVg BC eyIg)an
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -388
12. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
⎛I⎞
M BC = 2 E ⎜ ⎟[2θ B + 0 − 3(0)] − 7.2 =
2 EI
θ B − 7.2 (3)
⎝6⎠ 3
⎛I⎞
M CB = 2 E ⎜ ⎟[2(0 ) + θ B − 3(0 )] + 10.8 =
EI
θ B + 10.8 (4)
⎝6⎠ 3
smIkarlMnwg
smIkarTaMgbYnxagelImanGBaØatcMnYnR)aM. smIkarEdlcaM)ac;TIR)aM)anBIlkçxNÐlMnwgrbs;m:Um:g;enARtg;
TMr B . düaRkamGgÁesrIrbs;kMNat;Ggát;enARtg;cMNuc B RtUv)anbgðajenAkñúgrUbTI 11-10c. enATI
enH M BA nig M BC RtUv)ansnμt;eGayeFVIGMeBIkñúgTisedAviC¢manedIm,IeGayRsbeTAnwgsmIkar slope-
deflection . dUcenH
*
+ ∑MB = 0 M BA + M BC = 0 (5)
edIm,IedaHRsay CMnYssmIkar (2) nig (3) eTAkñúgsmIkar (5) enaHeyIg)an
6.17
θB =
EI
edayCMnYstémøenHeTAkñúgsmIkar (1) dl;smIkar (4) eyIg)an
M AB = 1.54kN .m
M BA = 3.09kN .m
M BC = −3.09kN .m
M CB = 12.86kN .m
témøGviC¢mansMrab; M BC bgðajfam:Um:g;enHeFVIGMeBIRcasRTnicnaLikaenAelIFñwm minEmnRsbRTnicna-
LikadUcbgðajenAkñúgrUbTI 11-10b.
edayeRbIlT§plenH eKkMNt;kMlaMgkat;enARtg;cugElVgBIsmIkarlMnwg ¬rUbTI 11-10d¦.
düaRkamGgÁesrIénFñwmTaMgmUl nigdüaRkamkMlaMgkat; nigdüaRkamm:Um:g;RtUv)anbgðajenAkñúgrUbTI 11-
10e.
]TarhN_ 11-2³ sg;düaRkamkmøaMgkat; nigdüaRkamm:Um:gsMrab;FñwmEdlbgðajenAkñúgrUbTI 11-
;
11a. EI Camantémøefr.
dMeNaHRsay³
smIkar slope-deflection
enAkñúg]TahrN_enHeKRtUvBicarNaElVgBIr. eKGnuvtþsmIkar 11-8 eTAelIElVg AB . eyIgGaceRbI
*
RsbRTnicnaLikaenAelIFñwm b:uEnþRcasRTnicnaLikaenAelITMr.
Displacement method of analysis: Slope-deflection equations T.Chhay -389
13. Department of Civil Engineering NPIC
smIkar 11-10 sMrab;ElVg BC edaysar C CaTMrkl;. edayeRbIrUbmnþsMrab; FEM EdlerobcMenAkñúg
tarag eyIg)an
2
(FEM ) AB = − wL =−
1
(40)(6)2 = −120kN .m
12 12
2
(FEM )BA = wL = 1 (40)(6)2 = 120kN .m
12 12
(FEM )BC = − 3PL = − 3(60)(2) = −22.5kN .m
16 16
cMNaMfa (FEM )AB nig (FEM )BC GviC¢man edaysarvaeFVIGMeBIRcasRTnicnaLikaenARtg;cMNuc A nig
B erogKña. ehIyedaysarTMrKμansMrut ψ AB = ψ BC = 0 . edayGnuvtþsmIkar 11-8 sMrab;ElVg AB
nigedaydwgfa θ A = 0 eyIg)an
⎛I⎞
M N = 2 E ⎜ ⎟(2θ N + θ F − 3ψ ) + (FEM )N
⎝L⎠
⎛I⎞
M AB = 2 E ⎜ ⎟[2(0) + θ B − 3(0)] − 120
⎝L⎠
M AB = 0.333EIθ B − 120 (1)
⎛I⎞
M BA = 2 E ⎜ ⎟[2θ B + 0 − 3(0)] + 120
⎝L⎠
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -390
14. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
M BA = 0.667 EIθ B + 120 (2)
edayGnuvtþsmIkar 11-12 CamYynwg B CacugCit nig C Cacugq¶ay eyIg)an
⎛I⎞
M N = 3E ⎜ ⎟(θ N −ψ ) + (FEM )N
⎝L⎠
⎛I⎞
M BC = 3E ⎜ ⎟(θ B − 0) − 22.5
⎝2⎠
M BC = 1.5 EIθ B − 22.5 (3)
cgcaMfa eKminGnuvtþsmIkar 11-10 BI B ¬cugCit¦ eTA B ¬cugq¶ay¦ eT.
smIkarlMnwg
smIkarTaMgbIxagelImanGBaØatcMnYnbYn. smIkarEdlcaM)ac;TIR)aM)anBIlkçxNÐlMnwgrbs;m:Um:g;enARtg;
TMr B . düaRkamGgÁesrIRtUv)anbgðajenAkñúgrUbTI 11-11b. eyIg)an
+ ∑MB = 0 M BA + M BC = 0 (4)
edIm,IedaHRsay CMnYssmIkar (2) nig (3) eTAkñúgsmIkar (4) enaHeyIg)an
45
θB = −
EI
edaysar θ B GviC¢man ¬RcasRTnicnaLika¦ ExSekageGLasÞicsMrab;FñwmRtUv)ansg;y:agRtwmRtUvenAkñúg
rUbTI 11-11a. edayCMnYs θ B eTAkñúgsmIkar (1) –(3) eyIg)an
M AB = −135kN .m
M BA = 90kN .m
M BC = −90kN .m
edayeRbIlT§plénm:Um:g;TaMgenH eyIgGackMNt;kmøaMgkat;enARtg;cugrbs;ElVgFñwmenAkñúgrUbTI 11-
11c. düaRkamkmøaMgkat; nigdüaRkamm:Um:g;RtUv)anbgðajenAkñúgrUbTI 11-11d.
]TarhN_ 11-3³ kMNt;m:Um:g;enARtg;cMNuc A nig B sRmab;FñwmEdlbgðajenAkñúgrUbTI 11-12a.
TMrenARtg; A mansMrut 80mm . yk E = 200GPa nig I = 5(106 )mm 4 .
dMeNaHRsay³
smIkar slope-deflection
enAkúñgcMeNaTenH eyIgBicarNaEtElVg AB mYyb:ueNÑaH edaysarm:Um:g; M AB EdlbNþalBIFñwmly
EdlGacKNnaBIsþaTic. edaysarminmanbnÞúkenAelIElVg AB enaH FEM esμIsUnü. dUcbgðajenAkñúg
rUbTI 11-12b bMlas;TIcuHeRkamrbs;cMNuc B eFVIeGayElVg AB vilRsbRTnicnaLika. dUcenH
Displacement method of analysis: Slope-deflection equations T.Chhay -391
15. Department of Civil Engineering NPIC
0.08m
ψ AB = ψ BA = = 0.02rad
4
kMrajrbs; AB KW
k=
( ) (
I 5 10 6 mm 4 10 −12 m 4 / mm 4
=
)
( )
= 1.25 10 − 6 m 3
L 4m
edayGnuvtþsmIkar slope-deflection ¬smIkar 11-8¦ eTAelIElVg AB CamYynwgθ A =0 eyIg)an
⎛I⎞
M N = 2 E ⎜ ⎟(2θ N + θ F − 3ψ ) + (FEM )N
⎝L⎠
( ( ) )[ ( ) ]
M AB = 2 200 109 N / m 2 1.25 10 −6 m 3 [2(0 ) + θ B − 3(0.02 )] + 0 (1)
M BA = 2(200(10 )N / m )[ .25(10 )m ][2θ
9
1 2 −6 3
B + 0 − 3(0.02 )] + 0 (2)
smIkarlMnwg
düaRkamGgÁesrIrbs;FñwmenARtg;TMr B RtUv)anbgðajenAkñúgrUbTI 11-12c. eyIg)an
+ ∑MB = 0 M BA − 8000 N (3m ) = 0
edIm,IedaHRsay CMnYssmIkar (2) eTAkñúgsmIkarenH eyIg)an
1(10 6 ) B − 30(103 ) = 24(103 )
θ
θ B = 0.054rad ]
dUcenHBIsmIkar (1) nig (2)
M AB = −3.00kN .m
M BA = 24.0kN .m
]TarhN_ 11-4³ kMNt;m:Um:g;enARtg;TMrrbs;FñwmEdlbgðajenAkñúgrUbTI 11-13a. TMrenARtg; A
mansMrut 30mm . yk E = 200GPa nig I = 600(106 )mm 4 .
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -392
16. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
dMeNaHRsay³
smIkar slope-deflection
enAkúñgcMeNaTenH eKmanElVgcMnYnbIEdlRtUvBicarNa. eKeRbIsmIkar 11-8 edaysarTMr A nig D CaTMr
bgáb;. ehIymanEtElVg AB b:ueNÑaHEdlman FEM .
2
(FEM ) AB = − wL 1
(20)(7.2)2 = −86.4kN .m
=
12 12
wL2 1
(FEM )BA = = (20 )(7.2)2 = 86.4kN .m
12 12
dUcbgðajenAkñúgrUbTI 11-13b, sMrut ¬bMlas;TI¦ rbs;TMr C eFVIeGayψ BC viC¢man edaysarGgát; BC
vilRsbRTnicnaLika ehIyψ CD GviC¢man edaysarGgát; CD vilRcasRTnicnaLika. dUcenH
0.03m 0.03m
ψ BC = = 0.005rad ψ CD = − = −0.00667rad
6m 4m
edaybgðajxñatrbs;kMrajCaEm:Rt eyIg)an
600(106 )(10 −12 )
k AB = = 83.33( − 6 )m 3
10
7.2
600( 6 )(10 −12 )
= 100(10 − 6 )m 3
10
k BC =
6
k CD =
( )(
600 10 10 −12
6
( ) )
= 133.33 10 −6 m 3
4.5
cMNaMfa θ = θ = 0 edaysar A nig D CaTMrbgáb; ehIyedayGnuvtþsmIkar slope-deflection
A D
¬smIkar 11-8¦ BIrdgenAelIElVgnImYy² eyIg)an
sMrab;ElVg AB
M = 2[200(10 )[83.33(
AB 10 )]2(0 ) + θ − 3(0 )] − 86.4
6 −6
B
M AB = 33333.3θ B − 86.4 (1)
[ ( )[ ( )]
M BA = 2 200 10 6 83.33 10 − 6 2θ B + 0 − 3(0 ) + 86.4 ]
Displacement method of analysis: Slope-deflection equations T.Chhay -393
17. Department of Civil Engineering NPIC
M BA = 66666.7θ B + 86.4 (2)
sMrab;ElVg BC
[ ( )[ ( )] ]
M BC = 2 200 10 6 100 10 − 6 2θ B + θ C − 3(0.005) + 0
M BC = 80000θ B + 40000θ C − 600 (3)
[ ( )[ ( )] ]
M CB = 2 200 10 6 100 10 − 6 2θ C + θ B − 3(0.005) + 0
M CB = 80000θ C + 40000θ B − 600 (4)
sMrab;ElVg CD
[ ( )[ ( )] ]
M CD = 2 200 10 − 6 133 10 − 6 2θ C + 0 − 3(− 0.00667 ) + 0
M CD = 106666.7θ C + 0 + 1066.7 (5)
[ ( )[ ( )] ]
M DC = 2 200 10 6 133.33 10 − 6 2(0 ) + θ C − 3(− 0.00667 ) + 0
M DC = 53333.3θ C + 1066.7 (6)
smIkarlMnwg
smIkarTaMgR)aMmYymanGBaØatR)aMbI. edaysresrsmIkarlMnwgrbs;m:Um:g;sMrab;TMrenARtg;cMNuc B nig
cMNuc C ¬rUbTI 10-13c¦ eyIg)an
+ ∑MB = 0 M BA + M BC = 0 (7)
+ ∑MC = 0 M CB + M CD = 0 (8)
edIm,IedaHRsay CMnYssmIkar (2) nig (3) eTAkñúgsmIkar (7) ehIyCMnYssmIkar (4) nig (5) eTAkñúg
smIkar (8) enaHeyIg)an
θ C + 3.667θ B = 0.01284
− θ C − 0.214θ B = 0.00250
dUcenH θ B = 0.00444rad θ C = −0.00345rad
témøviC¢mansMrab; θC bgðajkarvilRcasRTnicnaLikarrbs;bnÞat;b:HenARtg;cMNuc C ¬rUbTI 11-13a¦.
edayCMnYstémøTaMgenHeTAkñúgsmIkar (1)-(6) eyIg)an
M AB = 61.6kN .m
M BA = 383kN .m
M BC = −383kN .m
M CB = −698kN .m
M CD = 698kN .m
M DC = 883kN .m
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -394
18. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
!!>$> viPaKeRKagEdlmineyal (Analysis of Frame: No sidesway)
eRKagnwgmineyal b¤pøas;TIeTAeqVg b¤eTAsþaM RbsinebIeKTb;va)anl¥. ]TahrN_RtUv)anbgðaj
enAkñúgrUbTI 11-14. ehIyeRKagEdlminmankarTb;)anl¥nwgmineyaleT RbsinragFrNImaRt nigkar
rgbnÞúkrbs;vamanlkçN³sIuemRTI dUcbgðajenAkñúgrUbTI 11-15. sMrab;krNITaMgBIr tYψ enAkñúgsmIkar
slope-deflection esμIsUnü edaysarm:Um:g;Bt;min)aneFVIeGaytMNmanbMlas;TIlIenEG‘r.
]TahrN_xageRkambgðajBIkarGnuvtþénsmIkar slope-deflection edayeRbIdMeNIrkarkñúgkar
viPaKEdlmanerobrab;enAkñúgkfaxNÐ !!># sMrab;eRKagRbePTenH.
]TarhN_ 11-5³ kMNt;m:Um:g;enARtg;tMNnImYy²rbs;eRKagEdlbgðajenAkñúgrUbTI 11-16a. EI
mantémøefr.
dMeNaHRsay³
smIkar slope-deflection
enAkúñgcMeNaTenH eKmanGgát;cMnYnbIEdlRtUvBicarNaKW AB / BC nig CD . edayeRKagenHmanTMrbgáb;
enARtg;cMNuc A nig D eyIgnwgGnuvtþsmIkar 11-8 sMrab;karedaHRsayenH.
Displacement method of analysis: Slope-deflection equations T.Chhay -395
19. Department of Civil Engineering NPIC
BItaragm:Um:g;bgáb;cug/ FEM sMrab; BC KW
5wL2 5(24 )(8)2
(FEM )BC =− =− = −80kN .m
96 96
2
5(24 )(8)2
(FEM )CB = 5wL = = 80kN .m
96 96
cMNaMfa θ A = θ D = 0 ehIyψ AB = ψ BC = ψ CD = 0 edaysareRKagenHnwgmineyal.
edayGnuvtþsmIkar 11-8 eyIg)an
M N = 2 Ek (2θ N + θ F − 3ψ ) + (FEM )N
⎛ I ⎞
M AB = 2 E ⎜ ⎟[2(0) + θ B − 3(0)] + 0
⎝ 12 ⎠
M AB = 0.1667 EIθ B (1)
⎛ I ⎞
M BA = 2 E ⎜ ⎟[2θ B + 0 − 3(0 )] + 0
⎝ 12 ⎠
M BA = 0.333EIθ B (3)
⎛I⎞
M BC = 2 E ⎜ ⎟[2θ B + θ C − 3(0)] − 80
⎝8⎠
M BC = 0.5EIθ B + 0.25EIθ C − 80 (3)
⎛I⎞
M CB = 2 E ⎜ ⎟[2θ C + θ B − 3(0)] + 80
⎝8⎠
M CB = 0.8EIθ C + 0.25EIθ B + 80 (4)
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -396
20. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
⎛ I ⎞
M CD = 2 E ⎜ ⎟[2θ C + 0 − 3(0)] + 0
⎝ 12 ⎠
M CD = 0.333EIθ C (5)
⎛ I ⎞
M DC = 2 E ⎜ ⎟[2(0) + θ C − 3(0)] + 0
⎝ 12 ⎠
M DC = 0.1667 EIθ C (6)
smIkarlMnwg
smIkarTaMgR)aMmYymanGBaØatR)aMbI. smIkarlMnwgBIreTot)anBIsmIkarlMnwgrbs;m:Um:g;sMrab;TMrenARtg;
cMNuc B nig cMNuc C ¬rUbTI 11-16c¦. eyIg)an
M BA + M BC = 0 (7)
M CB + M CD = 0 (8)
edIm,IedaHRsaysmIkarTaMgR)aMbIenH CMnYssmIkar (2) nig (3) eTAkñúgsmIkar (7) nigCMnYssmIkar (4)
nig (5) eTAkñúgsmIkar (8). eyIg)an
0.833EIθ B + 0.25EIθ C = 80
0.833EIθ C + 0.25EIθ B = −80
edayedaHRsayRbB½n§smIkarenHeyIg)an
137.1
θ B = −θ C =
EI
EdleqøIytbeTAnwgrebobEdleRKagdabdUcbgðajenAkñúgrUbTI 11-16a. edayCMnYsvaeTAkñúgsmIkar
(1)-(6) eyIg)an
M AB = 22.9kN .m
M BA = 45.7 kN .m
M BC = −45.7kN .m
M BC = 45.7 kN .m
M CD = −45.7kN .m
M DC = −22.9kN .m
edayeRbIlT§plTaMgenH eyIgGackMNt;kmøaMgRbtikmμenARtg;cugrbs;Ggát;nImYy²BIsmIkarlMnwg ehIy
eyIgGacsg;düaRkamm:Um:g;sRmab;eRKagdUcbgðajenAkñúgrUbTI 11-16c.
]TarhN_ 11-6³ kMNt;m:Um:g;enARtg;tMNnImYy²rbs;eRKagEdlbgðajenAkñúgrUbTI 11-17a.
m:Um:g;niclPaBsMrab;Ggát;nImYy²RtUv)anbgðajenAkñúgrUb. yk E = 200GPa .
Displacement method of analysis: Slope-deflection equations T.Chhay -397
21. Department of Civil Engineering NPIC
dMeNaHRsay³
smIkar slope-deflection
enAkúñgcMeNaTenH eKmanGgát;cMnYnbYnEdlRtUvBicarNa. eyIgnwgGnuvtþsmIkar 11-8 cMeBaHGgát; AB
nig BC ehIyGnuvtþsmIkar 11-10 cMeBaHGgát; CD nig CE BIeRBaH D nig E CaTMrsnøak;.
edaykMNt;kMrajrbs;Ggát; eyIg)an
160( 6 )(10 −12 ) 80( 6 )( −12 )
= 35.56(
10 )m = 17.78(10 − 6 )m 3
10 −6 3 10 10
k AB = kCD =
4.8 4.5
320(10 )(10 ) 260(106 )(10 −12 )
= 66.67( − 6 )m 3 = 72.23( − 6 )m 3
6 −12
k BC = 10 kCE = 10
4.8 3.6
FEM EdlbNþalBIbnÞúkKW
30(4.8)
(FEM )BC =−
PL
=− = −18kN .m
8 8
PL 30(4.8)
(FEM )CB = = = 18kN .m
8 8
wL2 50(3.6 )2
(FEM )CE =− =− = −81kN .m
8 8
edayGnuvtþsmIkar 11-8 nigsmIkar 11-10 eTAelIeRKag nigcMNaMfaθ A = 0 /ψ AB = ψ BC = ψ CD =
ψ CE = 0 edaysarminmankareyal dUcenHeyIg)an
M N = 2 Ek (2θ N + θ F − 3ψ ) + (FEM )N
[ ( )] ( )
M AB = 2 200 10 6 (35.56 ) 10 − 6 [2(0 ) + θ B − 3(0 )] + 0
M AB = 14222.2θ B (1)
[ ( )] ( )
M BA = 2 200 10 6 (35.56 ) 10 − 6 [2θ B + 0 − 3(0 )] + 0
M BA = 28444.4θ B (2)
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -398
22. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
[ ( )] ( )
M BC = 2 200 10 6 (66.67 ) 10 −6 [2θ B + θ C − 3(0 )] − 18
M BC = 53333.3θ B + 26666.7θ C − 18 (3)
[ ( )] ( )
M CB = 2 200 10 6 (66.67 ) 10 − 6 [2θ C + θ B − 3(0)] + 18
M BC = 26666.7θ B + 53333.3θ C + 18 (4)
M N = 3Ek (θ N −ψ ) + (FEM )N
[ ( )] ( )
M CD = 3 200 10 6 (17.78) 10 −6 [θ C − 0] + 0
M CD = 10666.7θ C (5)
[ ( )] ( )
M CE = 3 200 106 (72.22 ) 10 − 6 [θ C − 0] + 81
M CE = 43333.3θ C − 81 (6)
smIkarlMnwg
smIkarTaMgR)aMmYymanGBaØatR)aMbI. eKGacsresrsmIkarlMnwgrbs;m:Um:g;cMnYnBIrsMrab;TMrenARtg;cMNuc
B nigcMNuc C ¬rUbTI 11-17c¦. eyIg)an
M BA + M BC = 0 (7)
M CB + M CD + M CE = 0 (8)
edIm,IedaHRsay CMnYssmIkar (2) nig(3) eTAkñúgsmIkar (7) ehIyCMnYssmIkar (4)-(6) eTAkñúgsmIkar
(8) enaHeyIg)an
81777.7θ Β + 26666.7θ C = 18
26666.7θ B + 107333.3θ C = 63
edaHRsayRbB½n§smIkarenHeyIg)an
θ B = 3.124(10 −5 )rad θ C = 5.792(10 −4 )rad
edaysartémøTaMgenHviC¢man dUcenHvaeFVIeGayeRKagxUcRTg;RTaydUcbgðajenAkñúgrUbTI 11-17a.
edayCMnYstémøTaMgenHeTAkñúgsmIkar (1)-(6) nigedaHRsay eyIg)an
M AB = 0.444kN .m
M BA = 0.888kN .m
M BC = −0.888kN .m
M CB = 49.7kN .m
Displacement method of analysis: Slope-deflection equations T.Chhay -399
23. Department of Civil Engineering NPIC
M CD = 6.48kN .m
M CE = −55.9kN .m
!!>%> viPaKeRKagEdleyal (Analysis of frames: Sidesway)
eRKagnwgeyal b¤cl½teTAxagenAeBlEdlva b¤bnÞúkEdlmanGMeBIelIvamanlkçN³minsIuemRTI.
edIm,IbgðajBIT§iBlenH BicarNaeRKagEdlbgðajenAkñúgrUbTI 11-18. enATIenH bnÞúk P eFVIeGayman
m:Um:g; M BC nig M CB enARtg;cMNuc B nig C erogKña ehIym:Um:g;TaMgBIrenHminesμIKñaeT. m:Um:g; M BC eFVI
eGaycMNuc B cl½teTAsþaM Ém:Um:g; M CB eFVIeGaycMNuc C cl½teTAeqVg. edaysar M BC FMCag M CB
enaHlT§plénbMlas;TIsrub Δ rbs;tMN B nig C KWeTAsþaM dUcbgðajenAkñúgrUb . enAeBlGnuvtþsmIkar
*
slope-deflection eTAelIssrnImYy²rbs;eRKag eyIgRtUvBicarNamMurgVilrbs;ssr ψ ¬edaysar
ψ = Δ / L ¦ CaGBaØatenAkñúgsmIkar. CalT§pl eKRtUvkar
bBa¢ÚlsmIkarlMnwgbEnßmsMrab;karedaHRsay. enAkñúgkfa-
xNÐelIkmun eyIgeXIjfabMlas;TImMu θ EdlCaGBaØatmanTMnak;
TMngenAkñúgsmIkar lMnwgénm:Umg;. tamrebobdUcKña enAeBl
:
ekItmanbMlas;TIlIenEG‘r Δ ¬b¤mMurgVilrbs;ElVg ψ ¦ eyIgRtUv
sresrsmIkarlMnwgénkMlaMgedIm,ITTYl)andMeNaHRsayeBj
elj. b:uEnþ GBaØatenAkñúgsmIkarTaMgenHRtUvEtBak;B½n§nwg
m:Um:g;Bt;Edlman GMeBIenARtg;cugssr edaysarsmIkar slope-
deflection Bak;B½n§eTAnwgm:Um:g;TaMgenH. bec©keTssMrab;edaH
RsaycMeNaTéneRKagEdleyalRtUv)anbgðajenAkñúg]TahrN_.
]TarhN_ 11-7³ kMNt;m:Um:g;enARtg;tMNnImYy²rbs;eRKagEdlbgðajenAkñúgrUbTI 11-19a. EI
mantémøefr.
dMeNaHRsay³
smIkar slope-deflection
edaysarTMr A nig D CaTMrbgáb; eKGacGnuvtþsmIkar 11-8 sRmab;Ggát;TaMgbIrbs;eRKag. enATIenH
eRKagmanPaBeyal edaysarkardak;bnÞúk nigragFrNImaRtrbs;eRKagmanlkçN³minsIuemRTI. enATI
*
rMlwkfa kMhUcRTg;RTayrbs;Ggát;TaMgbIKWbNþalBIm:Um:g;Bt; edayecalkmøaMgkat;nigkmøaMgtamG½kS.
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -400
24. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
enH eKdak;bnÞúkedaypÞal;eTAelItMN B dUcenHminman FEM eFVIGMeBIeTAelItMNeT. dUcbgðajenAkñúgrUb
TI 11-19a eKsnμt;eGaytMN B nigtMN C pøas;TIedaybrimaN Δ esμIKña. Cavi)ak ψ AB = Δ / 4 ehIy
ψ DC = Δ / 6 . tYTaMgBIrenHviC¢man edaysarGgát; AB nig CD vilRsbTisRTnicnaLika. edayP¢ab;
TMnak;TMngψ AB eTAnwgψ DC eyIg)anψ AB = (6 / 4)ψ DC . edayGnuvtþsmIkar 11-8 eTAelIeRKag
eyIg)an
⎛ I ⎞⎡ ⎛6 ⎞⎤
M AB = 2 E ⎜ ⎟ ⎢2(0) + θ B − 3⎜ ψ DC ⎟⎥ + 0 = EI (0.5θ B − 2.25ψ DC ) (1)
⎝ 4 ⎠⎣ ⎝4 ⎠⎦
⎛ I ⎞⎡ ⎛6 ⎞⎤
M BA = 2 E ⎜ ⎟ ⎢2θ B + 0 − 3⎜ ψ DC ⎟⎥ + 0 = EI (1.0θ C − 2.25ψ DC ) (2)
⎝ 4 ⎠⎣ ⎝4 ⎠⎦
⎛I⎞
M BC = 2 E ⎜ ⎟[2θ B + θ C − 3(0)] + 0 = EI (0.8θ B + 0.4θ C ) (3)
⎝5⎠
⎛I⎞
M CB = 2 E ⎜ ⎟[2θ C + θ B − 3(0)] + 0 = EI (0.8θ B + 0.4θ C ) (4)
⎝5⎠
⎛I⎞
M CD = 2 E ⎜ ⎟[2θ C + 0 − 3ψ DC ] + 0 = EI (0.667θ C − 1.0ψ DC ) (5)
⎝6⎠
⎛I⎞
M DC = 2 E ⎜ ⎟[2(0) + θ C − 3ψ DC ] + 0 = EI (0.333θ C − 1.0ψ DC ) (6)
⎝6⎠
smIkarlMnwg
smIkarTaMgR)aMmYymanGBaØatR)aMbYn. eKGacsresrsmIkarlMnwgrbs;m:Um:g;cMnYnBIrsMrab;TMrenARtg;
cMNuc B nigcMNuc C ¬rUbTI 11-17c¦. eyIg)an
Displacement method of analysis: Slope-deflection equations T.Chhay -401
25. Department of Civil Engineering NPIC
M BA + M BC = 0 (7)
M CB + M CD = 0 (8)
edaysarvaekItmanbMlas;TItamTisedk Δ / eyIgnwgBicarNarplbUkkmøaMgenAelIeRKagTaMgmUltam
Tis x dUcenHeyIgTTYl)an
+
→ ∑ Fx = 0 200 − V A − VD = 0
eKGacP¢ab;TMnak;TMngkmøaMgRbtikmμtamTisedk b¤kmøaMgkat;enAkñúgssrVA nigVD eTAnwgm:Um:g;Bt;
edayBicarNadüaRkamGgÁesrIénssrdac;edayELkBIKña ¬rUbTI 11-19c¦. eyIgman
M AB + M BA
∑MB = 0 VA = −
4
M + M CD
∑ MC = 0 VD = − DC
6
M AB + M BA M DC + M CD
dUcenH 200 +
4
+
6
=0 (9)
edIm,IedaHRsay CMnYssmIkar (2) nig(3) eTAkñúgsmIkar (7) ehIyCMnYssmIkar (4) nig(5) eTAkñúg
smIkar (8) ehIyCMnYssmIkar (1), (2), (5) nig (6) eTAkñúgsmIkar (9) enaHeyIgTTYl)an
1.8θ Β + 0.4θ C − 2.25ψ DC = 0
0.4θ B + 1.467θ C −ψ DC = 0
800
1.5θ B + 0.667θ C − 5.833ψ DC =
EI
edaHRsayRbB½n§smIkarxagelI eyIgTTYl)an
EIθ B = 243.78 EIθ C = 75.66 EIψ DC = 208.48
cugeRkay edayeRbIlT§plTaMgenH nigedaHRsaysmIkar (1)-(6) eyIg)an
M AB = −347 kN .m
M BA = −225kN .m
M BC = 225kN .m
M CB = 158kN .m
M CD = −158kN .m
M DC = −183kN .m
]TarhN_ 11-8³ kMNt;m:Um:g;enARtg;tMNnImYy²rbs;eRKagEdlbgðajenAkñúgrUbTI 11-20a. TMr
enARtg; A nig D CaTMrbgáb; ehIytMN C RtUv)ansnμt;faCatMNsnøak;. EI mantémøefrsMrab;RKb;
Ggát;TaMgGs;.
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -402
26. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
dMeNaHRsay³
smIkar slope-deflection
eKGacGnuvtþsmIkar 11-8 eTAelIGgát; AB edaysarvaRtUv)antP¢ab;edaytMNbgáb;enAcugTaMgsgçag.
eKGacGnuvtþsmIkar11-10 BI B eTA C nigBI D eTA C edaysarsnøak;enARtg;cMNuc C RTm:Um:g;sUnü. dUc
bgðajedaydüaRkamPaBdab ¬rUbTI 11-20b¦ eKmanbM;las;TIlIenEG‘r Δ nigbMlas;TImMuθ B enARtg;
cMNuc B EdlCaGBaØat*. edaysar Δ Ggát; AB nig CD vilRsbRTnicnaLika ψ = ψ AB = ψ DC =
Δ / 4 . edaydwgfa θ A = θ D = 0 nigvaminman FEM sMrab;Ggát; enaHeyIg)an
*
bMlas;TImMu θ nig θ enARtg;tMN C ¬snøak;¦ minRtUv)anrab;bBa©ÚlenAkñúgkarviPaKeT edaysareKeRbIsmIkar 11-10.
CB CD
Displacement method of analysis: Slope-deflection equations T.Chhay -403
27. Department of Civil Engineering NPIC
⎛I⎞
M N = 2 E ⎜ ⎟(2θ N + θ F − 3ψ ) + (FEM )N
⎝L⎠
⎛I⎞
M AB = 2 E ⎜ ⎟[2(0 ) + θ B − 3ψ ] + 0 (1)
⎝4⎠
⎛I⎞
M BA = 2 E ⎜ ⎟(2θ B + 0 − 3ψ ) + 0 (2)
⎝4⎠
⎛I⎞
M N = 3E ⎜ ⎟(θ N − ψ ) + (FEM )N
⎝L⎠
⎛I⎞
M BC = 3E ⎜ ⎟(θ B − 0) + 0 (3)
⎝3⎠
⎛I⎞
M DC = 3E ⎜ ⎟(0 − ψ ) + 0 (4)
⎝4⎠
smIkarlMnwg
smIkarlMnwgrbs;m:Um:g;enARtg;tMN B ¬rUbTI 11-20c¦. eyIg)an
M BA + M BC = 0 (5)
RbsinebIeKbUkkmøaMgsRmab;eRKagTaMgmUltamTisedAedk eyIg)an
+
→ ∑ Fx = 0 10 − V A − VD = 0 (6)
dUcbgðajenAkñúgdüaRkamGgÁesrIrbs;ssrnImYy² ¬rUbTI 11-20d¦ eyIg)an
M AB + M BA
∑MB = 0 VA = −
4
M DC
∑ MC = 0 VD = −
4
dUcenHBIsmIkar (6)
M AB + M BA M DC
10 + + =0 (7)
4 4
edayCMnYssmIkar slope-deflection eTAkñúgsmIkar (5) nig (7) ehIyedaysMrYlvaeyIgTTYl)an
3
θB = ψ
4
EI ⎛ 3 15 ⎞
10 + ⎜ θB − ψ ⎟ = 0
4 ⎝2 4 ⎠
dUcenH θB =
240
21EI
ψ=
320
21EI
edayCMnYstémøTaMgenHeTAkñúgsmIkar (1)-(4) eyIg)an
M AB = −17.1kN .m M BA = −11.4kN .m
M BC = 11.4kN .m M DC = −11.4kN .m
edayeRbIlT§plTaMgenH eKGackmøaMgRbtikmμcugrbs;Ggát;nImYy²BIsmIkarlMnwg ¬rUbTI 11-20e¦.
düaRkamm:Um:g;sMrab;eRKagRtUv)anbgðajenAkñúgrUbTI 11-20f.
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -404
28. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
]TarhN_ 11-9³ cUrBnül;BIrebobkMNt;m:Um:g;enARtg;tMNnImYy²éneRKagBIrCan;EdlbgðajenAkñúg
rUbTI 11-21a. EI mantémøefr.
dMeNaHRsay³
smIkar slope-deflection
edaysarTMrenARtg; A nig F CaTMrbgáb; eKGacGnuvtþsmIkar 11-8 sMrab;Ggát;TaMgR)aMmYyrbs;eRKag.
eKminKNna FEM eT edaysarbnÞúkTaMgGs;manGMeBIenARtg;tMN. enATIenH bnÞúkeFVIeGaytMN B nig
tMN E pøas;TIedaybrimaN Δ1 ehIyeFVIeGaytMN C nigtMN D pøas;TIedaybrimaN Δ1 + Δ 2 . Ca
lT§pl Ggát; AB nigGgát; FE rgkarviledaybrimaNψ 1 = Δ1 / 5 ehIy BC nig DE rgkarvileday
brimaN ψ 2 = Δ 2 / 5 .
edayGnuvtþsmikar 11-8 eTAelIeRKageyIg)an
⎛I⎞
M AB = 2 E ⎜ ⎟[2(0) + θ B − 3ψ 1 ] + 0 (1)
⎝5⎠
⎛I⎞
M BA = 2 E ⎜ ⎟[2θ B + 0 − 3ψ 1 ] + 0 (2)
⎝5⎠
⎛I⎞
M BC = 2 E ⎜ ⎟[2θ B + θ C − 3ψ 2 ] + 0 (3)
⎝5⎠
Displacement method of analysis: Slope-deflection equations T.Chhay -405
29. Department of Civil Engineering NPIC
⎛I⎞
M CB = 2 E ⎜ ⎟[2θ C + θ B − 3ψ 2 ] + 0 (4)
⎝5⎠
⎛I⎞
M CD = 2 E ⎜ ⎟[2θ C + θ D − 3(0)] + 0 (5)
⎝7⎠
⎛I⎞
M DC = 2 E ⎜ ⎟[2θ D + θ C − 3(0 )] + 0 (6)
⎝7⎠
⎛I⎞
M BE = 2 E ⎜ ⎟[2θ B + θ E − 3(0)] + 0 (7)
⎝7⎠
⎛I⎞
M EB = 2 E ⎜ ⎟[2θ E + θ B − 3(0 )] + 0 (8)
⎝7⎠
⎛I⎞
M ED = 2 E ⎜ ⎟[2θ E + θ D − 3ψ 2 ] + 0 (9)
⎝5⎠
⎛I⎞
M DE = 2 E ⎜ ⎟[2θ D + θ E − 3ψ 2 ] + 0 (10)
⎝5⎠
⎛I⎞
M FE = 2 E ⎜ ⎟[2(0 ) + θ E − 3ψ 1 ] + 0 (11)
⎝5⎠
⎛I⎞
M EF = 2 E ⎜ ⎟[2θ E + 0 − 3ψ 1 ] + 0 (12)
⎝5⎠
smIkarTaMg 12enHmanGBaØat 18.
smIkarlMnwg
smIkarlMnwgrbs;m:Um:g;enARtg;tMN B / C / D nig E ¬rUbTI 11-21c¦. eyIg)an
M BA + M BE + M BC = 0 (13)
M CB + M CD = 0 (14)
M DC + M DE = 0 (15)
M EF + M EB + M ED = 0 (16)
dUcenAkñúg]TahrN_elIkmun kmøaMgkat;enARtg;Kl;rbs;ssrsMrab;RKb;Can;RtUvEteFVIeGaybnÞúktamTis
edkmantulüPaB ¬rUbTI 11-21c¦. eyIg)an
+
→ ∑ Fx = 0 40 − VBC − VED = 0
M + M CB M ED + M DE
40 + BC + =0 (17)
5 5
+
→ ∑ Fx = 0 40 + 80 − V AB − VFE = 0
M + M BA M EF + M FE
120 + AB + =0 (18)
5 5
dMeNaHRsayTamTarnUvkarCMnYssmIkr (1) - (12) eTAkñúgsmIkar (13) - (18) EdlTTYl)anR)aMmYy
smIkarEdlmanR)aMmYyGBaØatKW ψ 1 / ψ 2 / θ B / θC / θ D nigθ E . eKGacedaHRsayRbB½n§smIkarenH.
eKRtUvCMnYslT§plEdlTTYl)aneTAkñúgsmIkar (1) –(12) EdleFVIeGayeyIgTTYl)anm:Um:g;enARtg;tMN.
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -406
30. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
]TarhN_ 11-10³ kMNt;m:Um:g;enARtg;tMNnImYy²éneRKagEdlbgðajenAkñúgrUbTI 11-22a. EI
mantémøefrsMrab;Ggát;nImYy².
dMeNaHRsay³
smIkar slope-deflection
eKGacGnuvtþsmIkar 11-8 eTAelIGgát;TaMgbI. FEM KW
2
30(3.6 )2
(FEM )BC = − wL =− = −32.4kN .m
12 12
wL2 30(3.6 )2
(FEM )CB = = = 32.4kN .m
12 12
Ggát;eRTt AB eFVIeGayeRKageTreTAsþaMdUcbgðajkñúgrUbTI 11-22a. CalT§pl tMN B nig C rgnUv
bMlas;TImMu nigbMlas;TIlIenEG‘r. bMlas;TIlIenEG‘rRtUv)anbgðajenAkñúgrUbTI 11-22b Edl B cl½teTA
B' )anTMhM Δ1 ehIy C cl½teTA C ' )an Δ 3 . bMlas;TITaMgenHeFVIeGayGgát;vilRsbRTnicnaLikaψ 1 /
ψ 3 niigRcasRTnicnaLika − ψ 2 dUcbgðaj . dUcenH *
*
rlWkfa kMhUcRTg;RTayEdlbNþalBIkmøaMgtamG½kSRtUv)anecal ehIybMlas;TI BB' nig CC ' RtUv)anKitCaragbnÞat; eday
sarCak;Esþgψ 1 nigψ 3 mantémøtUc.
Displacement method of analysis: Slope-deflection equations T.Chhay -407
31. Department of Civil Engineering NPIC
Δ1 Δ1 Δ3
ψ1 = ψ2 = − ψ3 =
3 3.6 6
dUcbgðajenAkñúgrUbTI 11-22c bMlas;TITaMgbImanTMnak;TMngKña. ]TahrN_ Δ 2 = 0.5Δ1 ehIy Δ 3 =
0.866Δ1 . dUcenH BIsmIkarxagelI eyIg)an
ψ 2 = −0.417ψ 1 ψ 3 = 0.433ψ 1
edaseRbIlT§plTaMgenH smIkar slope-deflection sMrab;eRKagKW
⎛I⎞
M AB = 2 E ⎜ ⎟[2(0) + θ B − 3ψ 1 ] + 0 (1)
⎝3⎠
⎛I⎞
M BA = 2 E ⎜ ⎟[2θ B + 0 − 3ψ 1 ] + 0 (2)
⎝3⎠
⎛ I ⎞
M BC = 2 E ⎜ ⎟[2θ B + θ C − 3(− 0.417ψ 1 )] − 32.4 (3)
⎝ 3.6 ⎠
⎛ I ⎞
M CB = 2 E ⎜ ⎟[2θ C + θ B − 3(− 0.417ψ 1 )] + 32.4 (4)
⎝ 3.6 ⎠
⎛I⎞
M CD = 2 E ⎜ ⎟[2θ C + 0 − 3(0.433ψ 1 )] + 0 (5)
⎝6⎠
⎛I⎞
M DC = 2 E ⎜ ⎟[2(0) + θ C − 3(0.433ψ 1 )] + 0 (6)
⎝6⎠
smIkarTaMgR)aMmYymanGBaØatR)aMbYn.
smIkarlMnwg
smIkarlMnwgrbs;m:Um:g;enARtg;tMN B nig C . eyIg)an
M BA + M BC = 0 (7)
M CD + M CB = 0 (8)
eKGacTTYl)ansmIkarcaM)ac;TIbIedayeFVIplbUkm:Um:g;enARtg;cMNuc O ¬rUbTI 11-22d¦. smIkarenH
lubbM)at;kmøaMgEkg N A nig N D dUcenH
+ ∑ MO = 0
⎛ M + M BA ⎞ ⎛M + M CD ⎞
M AB + M DC − ⎜ AB ⎟(10.2) − ⎜ DC ⎟(12.24) − 108(1.8) = 0
⎝ 3 ⎠ ⎝ 6 ⎠
− 2.4M AB − 3.4M BA − 2.04 M CD − 1.04M CD − 194.4 = 0 (9)
edayCMnYssmIkar (2) nig (3) eTAkñúgsmIkar (7) smIkar (4) nigsmIkar (5) eTAkñúgsmIkar (8) nig
smIkar (1), (2), (5) nig (6) eTAkñúgsmIkar (9) eyIg)an
9.72
0.733θ B + 0.167θ C − 0.392ψ 1 =
EI
9.72
0.167θ B + 0.533θ C + 0.0784ψ 1 = −
EI
58.32
− 1.840θ B − 0.512θ C + 3.880ψ 1 =
EI
karviPaKtamviFIbMlas;TI³ smIkar slope-deflection T.Chhay -408
32. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
edaHRsayRbB½n§smIkarTaMgenH eyIg)an
EIθ B = 35.51 EIθ C = −33.33 EIψ 1 = 27.47
edayCMnYstémøTaMgenHeTAkñúgsmIkar (1) – (6), eyIg)an
M AB = −31.3kN .m M BC = 7.60kN .m M CD = −34.2kN .m
M BA = −7.60kN .m M CB = 34.2kN .m M DC = −23.0kN .m
Displacement method of analysis: Slope-deflection equations T.Chhay -409
33. Department of Civil Engineering NPIC
cMeNaT
!!>!> kMNt;m:Um:g;enARtg;TMr A nig C bnÞab;mksg; !!>%> kMNt;m:Um:g;enARtg;TMr B bnÞab;mksg;düa-
düaRkamm:Um:g;. snμt;fatMN B CatMNkl;. EI Rkamm:Um:g;sMrab;Fñwm. snμt;TMrenARtg; A nig C
mantémøefr. CaTMrbgáb;. EI mantémø efr.
!!>@> kMNt;m:Um:g;enARtg;TMr A nig B bnÞab;mk !!>^> kMNt;m:Um:g;Bt;enARtg;TMr A / B nig C
sg;düaRkamm:Um:g;. EI mantémøefr. bnÞab;mksg;düaRkamm:Um:g;sMrab;Fñwm. snμt;TMr
enARtg; A CaTMrsnøak; ehIy B nig C CaTMrkl;.
EI mantémøefr.
!!>#> kMNt;m:Um:g;enARtg;TMr A nig B bnÞab;mk
sg;düaRkamm:Um:g;sMrab;Fñwm. EI mantémøefr.
!!>&> kMNt;RbtikmμTMrenARtg; A / B nig C
bnÞab;mksg;düaRkamm:Um:g;sMrab;Fñwm. snμt;TMr
enARtg; A CaTMrsnøak;.
!!>$> kMNt;m:Um:g;enARtg;TMr B nig C bnÞab;mk
sg;düaRkamm:Um:g;sMrab;Fñwm. snμt; A / B nig
C CaTMrkl; ehIy D CaTMrsnøak;. EI mantémø
efr.
!!>*> kMNt;m:Um:g;enARtg; B / C nig D bnÞab;
mksg;düaRkamm:Um:g;sMrab; ABDE . snμt; A
CaTMrsnøak; nig D CaTMrkl; ehIy C CaTMrbgáb;.
EI mantémøefr.
cMeNaT T.Chhay -410
34. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
!!>(> kMNt;m:Um:g;enARtg; B bnÞab;mksg;düa-
Rkamm:Um:g;sMrab;Ggát;nImYy²rbs;eRKag. snμt;
A nig C CaTMrsnøak; ehIy B CatMNbgáb;. EI
mantémøefr.
!!>!@> kMNt;m:Um:g;enARtg; B nig C . snμt; B nig
C CaTMrkl; ehIy A nig D CatMNsnøak;. EI
mantémøefr.
!!>!0> kMNt;m:Um:g;enARtg; B nig D bnÞab;mksg; !!>!#> kMNt;kmøaMgRbtikmμtamTisedk nigtam
düaRkamm:Um:g;. snμt; A nig C CaTMrsnøak; ehIy TisQrenARtg; A nig C . snμt; A nig C CaTMr
B nig D CatMN nigTMrbgáb;. EI mantémøefr.
snøak; ehIy B CatMNbgáb;. yk E = 200GPa .
!!>!!> kMNt;m:Um:g;enARtg; B bnÞab;mksg;düa-
Rkamm:Um:g;sMrab;Ggát;nImYy²rbs;eRKag. snμt;
A nig C CaTMrbgáb; ehIy B CatMNbgáb;. EI !!>!$> kMNt;m:Um:g;Bt;enARtg; A nig B bnÞab;mk
mantémøefr. sg;düaRkamm:Um:g;. snμt; B nig C CaTMrkl;.
Problems T.Chhay -411
35. Department of Civil Engineering NPIC
EI mantémøefr. !!>!*> kMNt;m:Um:g;enARtg;tMNnImYy² nigTMrrbs;
eRKag. tMN nigTMrCatMN nigTMrbgáb;. EI man
témøefr.
!!>!%> kMNt;m:Um:g;Bt;enARtg; A / B nig C bnÞab;
mksg;düaRkamm:Um:g;. snμt; A CaTMrbgáb;. EI
mantémøefr.
!!>!(> eRKagenHeFVIBIbMBg;TIbEdlmantMNbgáb;.
RbsinebIvaRTbnÞúkdUcbgðaj cUrkMNt;m:Um:g;Edl
ekItmanenARtg;tMN nigTMrnImYy². EI man
!!>!^> kMNt;m:Um:g;Bt;enARtg;cugénGgát;rbs; témøefr.
eRKag. TMrenARtg; A nig C TMrbgáb; ehIy B
CatMNbgáb;. EI mantémøefr.
!!>@0> kMNt;m:Um:g;Bt;enARtg;tMNnImYy² nigenA
Rtg;TMrbgáb; bnÞab;mksg;düaRkamGgÁesrI. EI
mantémøefr.
!!>!&> FñwmCab;RTbnÞúkcMcMNucbI. kMNt;m:Um:g;Bt;
GtibrmaenAkñúgFñwm nigbnÞab;mksg;düaRkam
m:Um:g;. EI mantémøefr.
!!>@!> kMNt;m:Um:g;Bt;enARtg;tMN nigTMrnImYy².
eKmantMNbgáb;enARtg; B nig C ehIyeKmanTMr
bgáb;enARtg; A nig D . EI mantémøefr.
cMeNaT T.Chhay -412
36. mhaviTüal½ysMNg;sIuvil viTüasßanCatiBhubec©keTskm<úCa
EdlmanTMrsamBaØ. snμt;TMrRtg; A nig E CaTMr
snøak; ehIytMNTaMgGs;CatMNbgáb;. EI man
témøefr.
!!>@@> kMNt;m:Um:g;Bt;enARtg; A / B / C nig D
bnÞab;mksg;düaRkamm:Um:g;. Ggát;nImYy²RtUv
)antP¢ab;edaytMNbgáb; nigmanTMrbgáb;. EI
mantémøefr.
!!>@%> edaHRsaycMeNaT !!>@$ edaysnμt;faTMr
A nig E CaTMrbgáb;.
!!>@^> kMNt;m:Um:g;Bt;enARtg;tMNnImYy²rbs;
eRKag. TMr A nig D CaTMrsnøak;. EI mantémø
efr.
!!>@#> épÞxagrbs;eRKagrgbnÞúkGIuRdUsþaTicdUc
bgðaj. kMNt;m:Um:g;Bt;enARtg;tMN nigTMr
nImYy². EI mantémøefr.
!!>@&> kMNt;m:Um:g;Bt;enARtg;tMNnImYy²rbs;
eRKag nigenARtg;TMr A nig D EdlCaTMrbgáb;.
EI mantémøefr.
!!>@$> kMNt;m:Um:g;Bt;enARtg;tMNnImYy²rbs;
eRKag. bnÞúkelIdMbUlRtUv)anepÞreTAédrENg
Problems T.Chhay -413
37. Department of Civil Engineering NPIC
KMerag !!>!> dMbUlRtUv)anRTedayrnUtEdlQr
elIr:tBIr. eKKitfarnUtnImYy²RtUv)anRTedayTMr
samBaØ ehIyeKKitfar:txagmuxRtUv)anRTeday
ssrEdlCaTMrsnøak;enARtg; A nigCaTMrkl;enA
Rtg; B nig C . snμt;fadMbUlRtUv)anplitBIebtug
EdlmankRmas; 75mm ehIyrnUtnImYy²man
TMgn; 2.5kN . eyagtamkUddMbUlenHrgnUvbnÞúk
RBwlEdlmanTMgn; 1.2kN / m2 . rnUtmanRbEvg
8m . sg;düaRkamkmøaMgkat; nigdüaRkamm:Um:g;
Bt;sMrab;r:t. snμt;fassrmanlkçN³rwg.
cMeNaT T.Chhay -414