Cov yam ntxwv thiab cov yam ntxwv ntawm cov hlau

I. Hlau Phaj thiab Sawb
Phaj hlauNws muab faib ua cov hlau tuab, hlau nyias thiab hlau tiaj tus, nws cov lus qhia nrog lub cim "a" thiab dav x tuab x ntev hauv millimeters. Xws li: 300x10x3000 uas dav ntawm 300mm, tuab ntawm 10mm, ntev ntawm 3000mm hlau phaj.

Phaj hlau tuab: tuab tshaj 4 hli, dav 600 ~ 3000 hli, ntev 4 ~ 12m.
Phaj hlau nyias: tuab tsawg dua 4 hli, dav 500 ~ 1500 hli, ntev 0.5 ~ 4m.
Hlau tiaj tus: tuab 4 ~ 60 hli, dav 12 ~ 200 hli, ntev 3 ~ 9m.
Cov phaj hlau thiab cov strips raug cais raws li txoj kev dov:cov phaj txias dovthiabcov phaj kub dov; raws li qhov tuab: cov phaj hlau nyias (qis dua 4 hli), cov phaj hlau tuab (4-60 hli), cov phaj tuab ntxiv (saum toj 60 hli)

2. hlau kub dov
2.1I-beam
I-beam hlau raws li nws lub npe qhia, yog cov duab I-puab hla-seem profiles, cov flanges sab saud thiab sab qis yog flush.
Cov hlau I-beam muaj peb hom: hom ib txwm, hom sib dua, thiab hom dav dav, nrog rau lub cim "ua haujlwm" thiab tus lej ntawm cov hlau. Tus lej twg sawv cev rau qhov siab ntawm tus lej ntawm centimeters. 20 thiab 32 siab dua li hom I-beam ib txwm, tus lej tib yam thiab faib ua hom a, b thiab a, b, c, nws cov tuab ntawm lub vev xaib thiab qhov dav ntawm lub flange yog incremental 2 hli. Piv txwv li T36a uas qhov siab ntawm ntu hla yog 360 hli, lub vev xaib tuab yog ib chav kawm ntawm hom I-beam ib txwm. I-beams yuav tsum sim siv hom a uas nyias tshaj plaws, vim nws qhov hnyav sib dua, thaum lub sijhawm hla ntu ntawm inertia loj heev.
Lub sijhawm ntawm inertia thiab radius ntawm gyration ntawm I-beams nyob rau hauv qhov kev taw qhia dav yog me dua li cov nyob rau hauv qhov kev taw qhia siab. Yog li, muaj qee qhov kev txwv hauv daim ntawv thov, feem ntau tsim nyog rau ib txoj kev khoov cov tswv cuab.
3.hlau channel
Cov hlau channel yog muab faib ua ob hom hlau channel ib txwm thiab cov hlau channel sib dua. Hom hlau channel nrog lub cim "["" thiab tus lej ntawm hais. Ib yam li I-beam, tus lej ntawm centimeters kuj sawv cev rau qhov siab ntawm qhov seem hla. Xws li [20 thiab Q [20 feem, sawv cev rau qhov siab ntawm seem ntawm 200mm ntawm cov hlau channel ib txwm thiab cov hlau channel sib dua. 14 thiab ntau dua 24 cov hlau channel ib txwm, tib tus lej ntawm sub-a, b thiab a, b, c hom, lub ntsiab lus ntawm tib yam nrog I-beam.

 

4. lub kaum sab xis hlau
Cov hlau kaum sab xis yog muab faib ua ob hom hlau kaum sab xis sib npaug thiab hlau kaum sab xis tsis sib npaug.
Lub kaum sab xis: nws ob ceg uas sib npaug zos thiab ntev sib npaug, nws tus qauv nrog lub cim "L" thiab qhov dav ntawm ceg x qhov tuab ntawm ceg hauv millimeters, xws li L100x10 rau qhov dav ntawm ceg ntawm 100mm, qhov tuab ntawm ceg ntawm 10mm lub kaum sab xis.
Lub kaum sab xis tsis sib npaug: nws ob ceg ceg sib tshuam tsis sib npaug, tus qauv nrog lub cim "" thiab qhov dav ceg ntev x qhov dav ceg luv x qhov tuab ceg hauv millimeters, xws li L100x80x8 rau qhov dav ceg ntev ntawm 100mm, qhov dav ceg luv ntawm 80mm, qhov tuab ceg ntawm 8mm lub kaum sab xis tsis sib npaug.

 
5. H-beam(dov thiab vuam)
H-beam txawv ntawm I-beam.
(1) flange dav, yog li ntawd muaj flange dav I-beam hais.
(2) Sab hauv ntawm lub flange tsis tas yuav muaj qhov nqes hav, qhov chaw sab saud thiab sab qis yog sib luag.
(3) los ntawm daim ntawv ntawm kev faib khoom, I-beam cross-section ntawm cov khoom siv feem ntau yog concentrated nyob ib puag ncig lub web, qhov ntau dua rau sab ntawm qhov txuas ntxiv, qhov tsawg dua hlau, thiab dov H-beam, qhov kev faib khoom ntawm cov khoom siv tsom mus rau ntug ntawm qhov.
Vim li no, cov yam ntxwv ntawm H-beam cross-section yog qhov zoo dua li cov haujlwm ib txwm muaj, channel, lub kaum sab xis thiab lawv cov kev sib xyaw ua ke ntawm cross-section, kev siv cov txiaj ntsig zoo dua.
Raws li tus qauv tam sim no hauv tebchaws "kub dov H-beam thiab ntu T-beam" (GB / T11263-2005), H-beam muab faib ua plaub pawg, uas tau xaiv raws li hauv qab no: flange dav H-beam - HW (W rau Wide English prefix), cov lus qhia txij li 100mmx100mm ~ 400mmx400mm; nruab nrab flange H-beam - HM (M rau Middle English prefix), cov lus qhia txij li 150mmX100mm ~ 600mmX300mm: Narrow Cui-edge H-beam - HN (N rau Narrow English prefix); nyias-walled H-beam - HT (T rau Thin English prefix). H-beam specification cim siv: H thiab tus nqi ntawm qhov siab ntawm h tus nqi x qhov dav ntawm b tus nqi x tus nqi ntawm qhov tuab ntawm lub vev xaib t tus nqi x tus nqi ntawm qhov tuab ntawm flange t2 tus nqi hais. Xws li H800x300x14x26, uas yog, rau qhov siab ntawm seem ntawm 800mm, flange dav ntawm 300mm, web tuab ntawm 14mm, flange tuab ntawm 26mm H-beam. Los yog qhia ua ntej nrog cov cim HWHM thiab HN hais tias H-beam qeb, ua raws li "qhov siab (mm) x dav (mm)", xws li HW300x300, uas yog, qhov siab ntawm seem ntawm 300mm, flange dav ntawm 300mm dav flange H-beam.
6. T-beam
Sectional T-beam (Duab) muab faib ua peb pawg, cov lej yog raws li nram no: qhov dav flange ib feem ntawm T-beam - TW (W rau Wide English head); hauv flange ib feem ntawm T-beam - TM (M rau Middle English head); qhov nqaim flange ib feem ntawm T-beam - TN (N rau Narrow English head). Sectional T-beam los ntawm H-beam sib xws raws nruab nrab ntawm lub web sib npaug faib ua. Sectional T-beam specifications cim nrog: T thiab qhov siab h tus nqi x dav b tus nqi x web thickness t tus nqi x flange thickness t tus nqi. Xws li T248x199x9x14, uas yog, rau qhov siab ntawm seem ntawm 248mm, tis dav ntawm 199mm, web thickness ntawm 9mm, flange thickness ntawm 14mm T-beam. Kuj tseem siv tau nrog H-beam zoo sib xws, xws li TN225x200 uas yog, qhov siab ntawm seem yog 225mm, qhov dav ntawm flange yog 200mm thiab qhov nqaim ntawm flange ntawm seem T-beam.

7. cov yeeb nkab hlau
Cov yeeb nkab hlau ua ib feem tseem ceeb ntawm cov hlau thiab cov khoom hlau, vim nws cov txheej txheem tsim khoom thiab cov duab ntawm cov yeeb nkab siv rau hauv ntau yam phem thiab muab faib uacov yeeb nkab hlau tsis muaj seamless(puag ncig tsis zoo) thiabcov yeeb nkab hlau vuam(phaj, nrog phem) ob pawg, saib daim duab.
Cov qauv hlau feem ntau siv rau hauv cov yeeb nkab hlau kub-dov seamless thiab cov yeeb nkab hlau welded, cov yeeb nkab hlau welded dov thiab welded los ntawm cov hlau strip, raws li qhov loj ntawm cov yeeb nkab txoj kab uas hla, thiab muab faib ua ob hom kev vuam ncaj thiab kev vuam kauv.LSAW yeeb nkab hlauCov lus qhia rau sab nraud txoj kab uas hla ntawm 32 ~ 152mm, phab ntsa tuab ntawm 20 ~ 5.5mm. Cov qauv hauv tebchaws rau "LSAW steel yeeb nkab" (GB / T13793-2008). Cov yeeb nkab hlau tsis muaj hlau raws li tus qauv hauv tebchaws "structural seamless steel yeeb nkab" (GB / T8162-2008), muaj ob hom kub-dov thiab txias-dov, cov yeeb nkab txias-dov tsuas yog txwv rau cov yeeb nkab me me txoj kab uas hla, kub-dov seamless steel yeeb nkab sab nraud txoj kab uas hla ntawm 32 ~ 630mm, phab ntsa tuab ntawm 25 ~ 75mm.
Cov lus qhia tshwj xeeb sab nraud txoj kab uas hla x phab ntsa tuab (hli), xws li φ102x5. Cov yeeb nkab hlau vuam yog khoov thiab vuam los ntawm cov hlau strip, tus nqi qis dua. Cov yeeb nkab hlau hla-seem symmetry qhov muag cheeb tsam faib yog qhov tsim nyog, lub sijhawm ntawm inertia hauv txhua qhov kev taw qhia thiab lub vojvoog ntawm gyration yog tib yam thiab loj dua, yog li kev ua tau zoo ntawm lub zog, tshwj xeeb tshaj yog thaum lub zog axial zoo dua, thiab nws cov duab nkhaus ua rau nws tsis kam rau cua, nthwv dej, dej khov, tab sis tus nqi kim dua thiab cov qauv txuas feem ntau nyuaj dua.