បេតុងពង្រឹងដោយដែក 10 x-axial-loaded-column

T.Chhay NPIC

ssrrgkMlaMgcMG½kS 189

X. ssrrgkMlaMgcMG½kS

1> esckþIepþIm ssrCaeRKOgbgÁúMd¾sMxan;sMrab;RTnUvbnÞúksgát;cMG½kS ehIymanpleFobssrelIRCugxagEdltUcCag

eK FMCag 3 . sMrab;sMNg;ebtugGarem: Fñwm kMral nigssrRtUv)ancak;kñúgeBlEtmYy (monolithic) EdleFVI eGaymanm:Um:g;xøH manGMeBIrelIssredaysarkarTb;enAxagcug. elIsBIenHeTot ssrsMrab;GaKareRcInCan; kartMrg;ssrtamTisQr minGaceFVIeTA)an\tex©aHenaHeT EdlbegáIteGaymankMlaMgcakp©it edayeFobeTA nwgG½kSssr. kMlaMgcakp©itbegáIteGaymanm:Um:g;elIssr. dUcenH ssrEdlrgnUvbnÞúktamG½kSsuT§minGac ekItmanenAkñúgsMNg;ebtugGarem:eT. EteKGacsn μt;fa ssrrgkMlaMgcMG½kS kalNavamancMgaycakp©it e tUc EdlmantMélRbEhl h1.0 . h CaCMerAsrubrbs;ssr nig e CacMgaycakp©itBIG½kSssr. edayebtug manersIusþg;sgát;x<s; ehIyvaCasMPar³EdlmantMélminéfø dUcenHvaRtUv)aneKeRbIedIm,IKNnasMrab;eRKOgbgÁúM rgkMlaMgsgát; edaymanlkçN³esdækic©x<s;.

2> RbePTssr ssrRtUv)anEbgEckedayQrelIeKalkarN_epSg²dUcxageRkam³

i. QrelIeKalkarN_bnÞúk ssrcat;cMNat;fñak;dUcxageRkam³ + ssrrgbnÞúkcMG½kS EdlbnÞúkRtUv)ansnμt;manGMeBIenAcMG½kSénmuxkat;ssr + ssrrgbnÞúkcakp©it EdlbnÞúkmanGMeBIenAcMgay e BIG½kSénmuxkat;ssr. cMgay e GacsßitenA

tamG½kS x b¤ G½kS y EdlbegáIt)anCam:Um:g;tamG½kS x b¤ G½kS y . + ssrrgbnÞúkcakp©itBIrTis EdlbnÞúkRtUv)anGnuvtþn_enAcMNucNamYyénmuxkat;ssr ehIyEdl

begáIt)anCam:Um:g;tamG½kS x nigG½kS y . ii. QrelIeKalkarN_RbEvgssrcat;cMNat;fñak;dUcxageRkam³

+ ssrxøI Edlssr)ak;edaykarEbkebtug rWEdkeFVIkardl;cMnucyareRkamlT§PaBRTRTg;bnÞúkeBj rbs;ssr

+ ssrEvg EdlkarPøat; nigPaBrlas;RtUv)anykmkBicarNa dUcenHlT§PaBRTRTg;bnÞúkrbs;ssr RtUv)ankat;bnßyebIeFobnwgssrxøI

iii. QrelIeKalkarN_rUbragénmuxkat; muxkat;ssrGacmanragCa kaer ctuekaNEkg mUl >>>> b¤rUbrag cg;)anNamYy.

iv. QrelIeKalkarN_EdkkgTTwg ssrRtUv)anEbgEckCa³

Department of Civil Engineering viTüasßanCatiBhubec©keTskm<úCa

Axial Loaded Column 190

+ ssrEdlmanEdkkgdac;²BIKña EdlmantYnaTIhMuBT§½EdkbBaÄrem. EdkkgCaTUeTAmanKMlatdUc² KñaeBjmYykMBs;ssr.

+ ssrEdlmanEdkkgvNÐ EdlmantYnaTIhMuBT§½EdkbBaÄrem ehIyCYybegáInPaByWtrbs;ssrmun eBl)ak;. CaTUeTA Edkkg nigEdkkgvNÐ RtUv)aneKeRbIedIm,IkarBarPaBrlas;rbs;ssr kugRtaMgEdk bBaÄrEdlekItBIkarPøat; nigkarpÞúHEbkénebtugkarBarsésEdk.

v. QrelIeKalkarN_viPaKeRKag ssrCaEpñkmYyéneRKagEdlmanCnÞl;RbqaMgnwgkareRTtcMehog nig CaEpñkmYyéneRKagEdlminmanCnÞl;RbqaMgnwgkareRTtcMehog. CnÞl;Gac)anmkBIkareRbICBa¢aMgeb tugGarem: b¤CnÞl;BIeRKag. sMrab;eRKagmanCnÞl; ssrCaeRKOgbgÁMúEdleRbIsMrab;Tb;nwgbnÞúkTMnaj ehIyCBa¢aMgebtugGarem:RtUv)aneKeRbIedIm,ITb;nwgkMlaMgtamTisedk nigbnÞúkxül;. ÉeRKagKμanCnÞl; ssrCaeRKOgbgÁúMEdleRbIedIm,ITb;nigbnÞúkTMnajpg nigbnÞúkxül;pg dUcenHlT§PaBRTRTg;rbs;ssr RtUv)ankat;bnßy.

vi. QrelIeKalkarN_sMPar³ ssrGacCassrebtugGarem: ssrebtugeRbkugRtaMg ssrsmas. ssrebtugGarem:RtUv)aneKeRbICaTUeTAsMrab;sMNg;GKar.

T.Chhay NPIC


3> criklkçN³énssrrgbnÞúkcMG½kS enAeBlEdlbnÞúkmanGMeBIcMG½kSénssrxøIebtugGarem: ebtugRtUv)anBicarNaeGayeFVIkarmanlkçN³

eGLasÞic enAeBlEdlvargnUvkugRtaMgTabEdlmantMélRbEhl cf '31 . RbsinebIbnÞúkEdlmanGMeBIenAelI

ssrxiteTArkersIusþg;cugeRkayrbs;va enaHebtugxiteTArkersIusþg;cugeRkay ehIyEdkk¾xiteTArkersIusþg;rMhU yf . lT§PaBRTRTg;bnÞúcugeRkaymFümrbs;ssr GacsresrdUcxageRkam³

ystnco fAAfP += '85.0 Edl nA nig stA CaRkLaépÞebtugsuT§ nigRkLaépÞEdk

stgn AAA −= gA Camuxkat;rgGMeBI

kar)ak;rbs;ssr ekIteLIgBIrRbePTepSgKña GaRs½yeTAnwgkareRbIR)as;Edkkg nigEdkkgvNÐ½. sMrab;ssrEdkkg ebtug)ak;edaypÞúHEbkpÞat;ecjeRkA EdkembBaÄr)ak;edayPøat;ecjcenøaHEdkkg dUcenH ssr)ak;ekIteLIgPøam². sMrab;ssrEdkkgvNÐ½)ak;edaymankarbgðajnUvrMhUr EdlekItmannUvkMhUcRTg; RTayEdlGacKit)an munnwgkar)ak;eBjelj.

4> lkçxNÐrbs; ACI Code ACI Code )anbgðajnUvlkçxNÐmYycMnYndUcxageRkamkñúgkarKNnaeRKOgbgÁúMrgkarsgát;³ - sMrab;ssrrgkarsgát;cMG½kS k¾dUccakp©it ACI Code )ankMNt;ykemKuNkat;bnßyersIusþg;

65.0=φ srab;ssrEdlmanEdkkgdac;² nig 7.0=φ sMrab;ssrEdlmanEdkkgvNÐ½. tMélxusKña 05.0 bgðajGMBIPaBsVitrbs;ssrEdlmanEdkkgvNÐ½. emKuNkat;bnßyersIusþg;sMrab;ssrmantMéltUcCagsMrab; eRKOgbgÁúMrbkarBt; nigkMlat;TTwg enHedaysarEtersIusþg;rbs;ssrrgkarsgát;cMG½kS GaRs½yCacMbgeTAnwg ersIusþg;rbs;ebtug EdlpÞúyBIeRKOgbgÁúMrgkarBt;TTYl\T§iBlticCagBIersIusþg;ebtug CaBiesskñúgkrNImuxkat; rgkarTaj. elIsBIenHeTot rgnUvkarbMEbkFatul,ayebtugeRcInCagkrNIFñwm. ssrRtUvcak;bBaÄrx<s; nigBum<ceg¥ót b:uEnþebtugkñúgFñwmRtUv)ancak;kñúgBum<rak; edk. dUcenHkar)ak;rbs;ssrenAkñúgeRKagRtUv)aneK BicarNaeRcInCagFñwmkMral.



- PaKryEdkemGb,brma %1 nigGtibrmaKW %8 énmuxkat;ssr. muxkat;EdkGb,brmaRtUv)an dak;sMrab;Tb;nwgkarBt;EdlvaGacekItmaneLIg nigCYykat;bnßy\T§iBl creep nigkarrYmmaDrbs;ebtugeRkam GMeBIénkugRtaMgsgát;. sMrab;karGnuvtþn_ vaCakarBi)akbMputkñúgkarBRgayEdkEdlmanmuxkat;eRcInCag %8 eTAkñúgssr BIeRBaHeKRtUvkarKMlatEdksmrmüedIm,IeGayebtugeRcotcUlcenøaHEdk.

- y:agehacNas;EdkbYnedImRtUv)andak;sMrab;ssrctuekaN nigssrmUlEdlmanEdkkgdac;² nig EdkR)aMmYyedImsMrab;ssrmUlEdlmanEdkkgvNÐ½. sMrab;muxkat;ssrepSgeTot EdkRtUv)andak;RKb;RCug TaMgGs;. EdkminRtUv)andak;edaymanKMlatFMCag cm15 . kñúgkrNIEdkmanKMlatFMCag cm15 eKRtUvdak; EdkkgbEnßm. RsTab;ebtugkarBarEdkGb,brma mm40 .

- PaKryEdkkgvNÐ sρ RtUv)ankMNt;³

yt

c

c

gs f

fAA ')1(45.0 −=ρ

Edl gA muxkat;ssr cA muxkat;ssrKitRtwmEpñkxageRkAEdkkgvNÐ½ ytf ersIusþg;Edkkg

T.Chhay NPIC


- muxkat;EdkkgvNÐGb,brma mm5.9 nigmanKMlatcenøaH cmcm 5.75.2 → . kartEdkeFVIeLIg edaypSaehIyRbEvgtEdksMrab;fñaMgGMeBA d48 nigFMCag cm30 sMrab;Edkrelag φ72 nigFMCag cm30 .

- Ggát;p©iténEdkkgdac;²Gb,brma mm5.9 RtUv)aneRbIedIm,IrMuBT§½EdkbBaÄrEdlmanGgát;p©ittUcCag mm32 nigsMrab;EdkbBaÄrEdlmanGgát;p©itFMCag mm32 EdkkgRtUvmanGgát;p©it mm12 .

- KMlatEdkkgminRtUvmantMélFMCag

⎪⎩

⎪⎨

⎧

bd16

48min

φ

Edl φ Ggát;p©itEdkkg/ d Ggát;p©itEdkbBaÄr/ b RCugEdlmanTMhMtUcCageKénmuxkat;ssr.

5> smIkarsMrab;KNna bnÞúkEdlssrGacRT)anRtUv)ankMNt;edaysmIkar

ystnco fAAfP += '85.0 EtCaTUeTA ssrminEdlrgbnÞúkcMG½kSeT vaEtgEtrgbnÞúkcakp©itbnþic dUcenH ACI Code )anKuNnwg

emKuN 8.0 sMrab;ssrEdlmanEdkkgdac;² nig 85.0 sMrab;ssrEdlmanEdkvNÐ. sMrab;ssrEdlmanEdkkgdac;² bnÞúkemKuNEdlssrGacRT)ankMNt;eday

])('85.0[8.0 yststgcnu fAAAfPP +−== φφ nig 65.0=φ sMrab;ssrEdlmanEdkkgvNÐ½ mKuNEdlssrGacRT)ankMNt;eday

])('85.0[85.0 yststgcnu fAAAfPP +−== φφ nig 7.0=φ smIkarxagelITaMgBIrGacsresry:agsegçbdUcxageRkam³

)]'85.0('85.0[ cystgcnu ffAAfkPP −+== φφ Edl 65.0=φ nig 8.0=k sMrab;ssrEdlmanEdkkgdac;² nig 7.0=φ nig 85.0=k sMrab;ssr

EdlmanEdkkgvNÐ½. smIkarxagelIRtUv)aneRbIedIm,IKNnalT§PaBRTRTg;rbs;ssrrgbnÞúkcMG½kS. RbsinebIpleFobEdk

g

stg A

A=ρ enaHsmIkarxagelIkøayeTACa

)]'85.0('85.0[ cygcgnu fffkAPP −+== ρφφ smIkarxagelIenHvij RtUveRbIedIm,IKNnamuxkat;ssr edaysnμt;PaKryEdlenAcenøaH %8%1 → .



6> kMlaMgTajcMG½kS ebtugnwgminmansñameRbHeT ebIvargnUvkugRtaMgEdlmantMélTabCagersIusþg;rgkarTajrbs;va kñúg

krNIenH TaMgebtug nigEdkTb;nigkugRtaMTaj. b:uEnþenAeBlEdl kMlaMgTajmantMélFMCag ersIusþg;rgkar Tajrbs;va ¬RbEhl

101 énersIusþg;rgkarsgát;rbs;ebtug¦ sñameRbH)anekItmanenAelImuxkat;ebtug ehIy

kMlaMgTajTaMgGs; RtUvTb;Tl;edayEdk. bnÞúkFm μtaEdlGgát;TTYl)anKWCaersIusþg;Tajrbs;Edk³ ystn fAT =

ystu fAT φ= 9.0=φ sMrab;karTajcMG½kS

Ggát;EdlrgkarTaj ebtugeRbH ehIyr)arEdkrgnUvbnÞúkTajTaMgGs; ebtugmantYnaTICaGñkkarBar ePøIg nigERcHsIuEdk. sMrab;GagsþúkTwk eKRtUvykcitþTukdak;eTAelIebtug edaymineGayvamansñameRbHeRkam GMeBIénkMlaMgTaj EdlbNþalmkBIsMBaFTwk. ]TahrN_³ KNnassrxøImuxkat;ctuekaNEdlmanEdkkgdac;² edIm,IRTbnÞúkemKuNcMp©it kNPu 1765= . edayeRbI MPaf c 30' = / MPafy 400= / TTwgssr cmb 30= nigPaKryEdk %2=gρ . dMeNaHRsay³ bnÞúkemKuNEdlssrGacssrGacRT)an

)]'85.0('85.0[ cygcgu fffkAP −+= ρφ sMrab;ssrEdlmanEdkkgdac;² 65.0=φ nig 8.0=k

)]'85.0('85.0[85.065.0 cygcgu fffAP −+××=⇒ ρ kMNt;muxkat;ssr

)]'85.0('85.0[8.065.0 cygc

ug fff

PA−+××

=ρ

edaybnÞúkRtUvkarRTnUvbnÞúkcMp©it kNPu 1765= nigssrRtUvmanPaKryEdk %2=gρ 2

3

102887)]3085.0400(02.03085.0[8.065.0

101765 mmAg =×−+×××

×=⇒

eday cmb 30= mma 343

300102887

==⇒ yk 210500035350 mmAcmmma g =⇒== muxkat;Edk 2205710288702.0 mmAs =×= ykEdk 22DB cMnYn 6 edIm 22280mmAs =⇒

T.Chhay NPIC


RtYtBinitübnÞúkKNnaEdlssrGacRT)an ])('85.0[8.065.0 yststgcu fAAAfP +−×=

⇒ kNkNPu 1765183610]4002280)2280105000(3085.0[8.065.0 3 >=××+−×××= − !OK ykEdkkgmanGgát;p©it mm10 KMlatEdkkg

300300352480

min300

22161048

min1648

min =⎪⎩

⎪⎨

⎧=

⎪⎩

⎪⎨

⎧××

=⎪⎩

⎪⎨

⎧

bdφ

dUcenHeRbIEdkkg 300@10DB .

បេតុងពង្រឹងដោយដែក 10 x-axial-loaded-column

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