H ntu, uas ib txwm hu uaH-BeamslossisTeeb Flange Flange, yog cov qauv hlau txheem hlau zoo li tus tsiaj ntawv "H" thaum saib nyob rau hauv Cross Tshooj. Lawv tau dav siv hauv kev tsim kho thiab kev tsim kho vim lawv lub zog siab-rau-qhov hnyav piv thiab ua haujlwm hauv cov ntawv thov thauj khoom. Hauv qab no yog cov ncauj lus kom ntxaws saib xyuas:
Kev txhais thiab cov qauv
H-ntu muaj:
- Ob tug tav toj flanges (sab saum toj thiab hauv qab) - dav dua li cov nyob hauv I-Beams, muab cov khoom xa khoom zoo dua.
- Ib lub vev xaib ntsug - txuas cov flanges, tawm tsam shear rog.
Tus qauv tsim ua kom muaj zog tshaj plaws ntawm kev khoov thiab deflection, ua rau H-ntu zoo tagnrho rau kev tshaj tawm ntev thiab hnyav thauj khoom.
Cov Khoom Siv thiab Raug
Khoom:
H-ntu yogfeem ntau ua los ntawm Cov Hlau Hlau, uas muaj kev sib npaug zoo ntawm lub zog thiab nqi txiaj ntsig zoo. Rau cov ntawv thov uas xav tau lub zog dua lossis corrosion tsis kam, cov hlau hlau ib co lossis hlau tsis muaj roj.
Cov txheej txheem tsim khoom:
Feem ntau cov qauv tsim yog Kub RollingCov. Hauv cov txheej txheem no, kev cuam tshuam cov hlau lossis cov billed yog rhuab rau qhov kub thiab txias thiab tom qab ntawd dhau los ntawm ib lub rolling mills los ua rau lawv mus rau hauv h-seem profile.Cuav Dabtseem siv rau kev tsim cov ntawv H-ntu nrog cov chaw ua kom nruj thiab cov chaw smoother, tab sisNws tsis tshua muaj tshwm sim vim muaj nqi siab dua.
Cov ntawv thov thiab cov txiaj ntsig
Cov Kev Siv Cov Ntawv Siv
- Kev tsa tsev: Siv dav hauv lub tsev ua ke thiab cov kab teeb los txhawb cov plag tsev, vov tsev, thiab phab ntsa hauv ob thaj chaw thiab cov qauv lag luam.
- Tus choj: Qhov zoo tagnrho rau cov tsiaj loj hauv cov choj vim lawv lub peev xwm los ua kev ncua ntev thiab nqa cov khoom hnyav, muab kev ntseeg siab ntawm cov qauv thiab kev ntseeg siab.
- Muaj cov qauv kev siv: Feem ntau siv nyob rau hauv cov chaw ua haujlwm thiab cov tsev khaws khoom los txhawb cov tshuab hnyav thiab cov cuab yeej siv, ua kom muaj kev ruaj ntseg ntawm cov tsev.
Qhov Zoo
- Thauj khoom muaj peev xwm: Cov Flanges dav dav thiab lub vas sab nqaim ntawm inertia, ua H-ntu muaj siab heev tiv taus thiab shear rog.
- Ruaj khov: Cov qauv tsim symmetrical ua kom muaj kev ruaj khov nyob rau hauv cov kab ke ntsug thiab kab rov tav, txo qhov kev pheej hmoo ntawm buckling nyob rau hauv compressive loads.
- Yooj yim ntawm kev sib txuas: H-ntu tuaj yeem txuas tau yooj yim rau lwm tus neeg hlau cov tswv cuab siv cov hlau, lossis cov rivatile, ua rau ntau yam rau tsim cov txheej txheem steel qub.
Piv rau I-ntu
| Yam zoo | H-ntu (piv txwv li, hewb \/ w-duab) | I-SECIT (piv txwv li, IPE \/ INP \/ S-SXLE) |
|---|---|---|
| Hla-ntu | Dav, kev sib tw flanges; zoo li "h" | Tapered (sloped) flanges; zoo li "Kuv" |
| Fluarh Dav | Dav (optimized rau load faib) | Nqaim (tapered rau sawv) |
| Lub Web Thickness | Thinner (txheeb ze rau flange dav) | Thicker (kom them nyiaj rau nqaim rau ntawm ntug dej) |
| Luj faib | Cov khoom siv ntau dua hauv Flanges, tsawg dua hauv Web | Ntau sib npaug ntawm lub vev xaib thiab flanges |
| Lub caij ntawm inertia | Siab dua (muaj zog tiv thaiv dabtsi yog khoov) | Qis dua (piv rau zoo sib xws-tob H-Seem) |
| Thauj Peev Xwm | Superior rau hnyav thauj khoom thiab ntev ntev | Haum rau kev txwv cov khoom lag luam thiab cov khoom sib dua |
| Torsionional Kuj | Qis dua (qhib ntu) | Me ntsis zoo dua vim yog cov nyom |
| Cov Qauv Txheej Txheem | EN 10025 (Heeb), Astm A6 (W-Shapes), Jis G 3101 | EN 10025 (IPE), ASTM A6 (S-Shape), JIS G 3101 |
| Cov Kev Siv Raug Raug | - Kev tsim kho hnyav (txuas hniav, siab nce) - kab thiab kab teeb hauv cov thav ntawv loj - Crane ntsia |
- Thaj Chaw \/ Lub Teeb Lag Luam Lag Luam - Cov kab me me - luv luv-spinn |
| Yooj yim ntawm kev sib txuas | Yooj yim (dav flanges haum bolts \/ Welds) | Nyuaj (nqaim flanges txwv ntsia liaj qhov chaw) |
| Tus Nqi Muaj Zog | Siab dua tus nqi tab sis txo cov khoom siv tag nrho | Txo tus nqi rau cov phiaj xwm me me |
| Axial Chaw thau khoom (txhua) | Zoo dua (flanges tiv thaiv buckling) | Tsawg dua (nquag mus rau buckling nyob rau hauv compression) |
| Kev yuav | Yuav tsum muaj qhov tseeb vim lub web | Yooj yim rau txiav \/ weld (thicker web) |
| Kev siv tshuaj zoo nkauj | Tsawg (muaj tsos) | Ntau cov neeg (sleeker profile rau pom cov qauv) |
Tseem ceeb takaways:
- Xaiv H-ntuThaum twg:
Siab thauj khoom muaj peev xwm los yog ntev spans yog xav tau (piv txwv li, skyscrapers, choj).
Tus qauv yuav tsum muaj kab ntawv nrog cov axial resistance.
- Xaiv I-SeemThaum twg:
Tus nqi yog qhov tseem ceeb rau cov haujlwm me me.
Kev thau khoom nruab nrab thiab cov khoom luv hloov tau koom nrog (piv txwv li, lub tsev ci).
Tapered flanges yog nyiam rau torsional ruaj khov.
Tag
H-ntu yog qhov tseem ceeb hauv kev tsim kho tshiab steel, muab kev sib npaug ntawm lub zog, kev yoog tau, thiab tus nqi-ua hauj lwm zoo. Lawv cov qauv siv minimizing cov khoom pov tseg thaum cov txheej txheem kev ntseeg siab, ua rau lawv tsis tseem ceeb hauv cov haujlwm loj.
Cim npe nrov: H ntu, Tuam Tshoj, cov chaw muag khoom, chaw tsim khoom, Hoobkas, nqe
