H - kab ci yog qhov tseem ceeb rau cua thiab hnub ci hauv tsev. Hauv cua ua liaj ua teb, HEb 800 × 400 Beams ua lub zog {}} lawv 460 yield lub zog 20m vuag thiab turbine dibrations. Hnub ci ua liaj ua teb Siv lub cev nyhav dhau 200 × 100 ci (200mm qhov siab, 100mm flange dav) los txhawb vaj huam sib luag arrays; Lawv cov bolted sib txuas nrawm rau kev teeb tsa los ntawm 30%. Rau cov nroj tsuag hydroelectric, corrosion - {rease galvanized h} cov kab nrig (85μm Tag nrho cov kev siv no siv leverage h {l}} Beams 'durability thiab yoog thiab yoog tau, sib zog nrog ntiaj teb txuas ntxiv hluav taws xob lub hom phiaj.
Lub teb chaws Asian twg yog sab saum toj h- nqaj cov neeg siv khoom, thiab yog vim li cas?
Tuam Tshoj, Is Nrias teb, thiab Nyab Laj ua Asian H - nqaj xav tau. Tuam Tshoj (35% kev noj hauv ntiaj teb) siv 50 lab tons / xyoo {} Is Nrias teb 12 lab tons / xyoo thov cov cim los ntawm cov nroog ntse (Amaravati) thiab cov qauv lag luam kev lag luam, nrog Tata Steel muab khoom siv hauv zos. Nyablaj (8 lab tons / xyoo) siv en- Txheem cov kab ci rau kev lag luam (binh duong) thiab ntev dua li lub tshav dav hlau ntev. Tag nrho peb qhov ua ntej H-Beams rau kev loj hlob sai thiab kev loj hlob hauv tsev, tsav tsheb hauv cheeb tsam steel.
Yuav ua li cas h - nqaj lub web tuab kev cuam tshuam shear tsis kam?
Web thickness ncaj qha txiav txim shear muaj peev xwm - thicker webser websing ntau rau kev quab yuam. Ib lub vev xaib 10 hli hauv HN 300 × 150 tiv taus 200 kn shear (haum rau chaw ua haujlwm pem teb), thaum lub teb chaws 1600 × 300 with crane khiav). Cov Webs Nyias (6-8mm) Ua haujlwm rau lub teeb lub teeb tab sis pheej hmoo buckling nyob rau hauv cov hnyav shear; Cov engineers ntxiv cov pob tsuas yog tias tuab tsis tuaj yeem nce ntxiv. Cov qauv xws li EN 1993-1-1 teev qhia kom meej lub vev xaib tsawg kawg nkaus (t ntau dua lossis sib npaug zos rau H / 200) los tiv thaiv kev ua tsis tiav. Rau kev thauj khoom zoo (piv txwv li, cov choj railway), 12-14mm webs sib npaug lub zog thiab qhov hnyav.
Dab tsi ua rau h - beads tus nqi -}}}} Nws ua tau zoo rau kev tsim kho Modular?
H - Beams 'precision thiab modularity txiav cov nqi nyob rau hauv prefabrication. Hoobkas {- mte mionided uniform Qhov ntev (eg, 3m} 6}- txo cov kev ua haujlwm ntawm 80%. Lawv cov bolted sib txuas tshem tawm ntawm -}} kev siv hluav taws xob, swb rau lub sijhawm ua haujlwm los ntawm 40%. Rov qab siv dua h- Beams (95% rov qab tus nqi) kuj cov nqi pov tseg qis dua. Ib London Modular Hotel siv 200 tons ntawm hn 200% nrawm dua cov txheej txheem ib txwm muaj thiab txuag $ 150,000. Qhov kev ua tau zoo no ua rau h- Beams zoo tagnrho rau kev nrawm nrawm xws li cov tub ntxhais kawm lub tsev nyob.
Cov huab cua txias yuav cuam tshuam li cas h - nqaj kev ua haujlwm?
Huab cua txias (hauv qab {{{{- 20 degree) txo h} Tsov ci ductility, loj dua tawg kev pheej hmoo. Txheem s235 steel poob 40% ntawm nws cov kev cuam tshuam nyuaj ntawm {10 degree, ua rau nws tsis nyab xeeb rau Arctic lossis siab {18} {18 {18 {} {18} ovitude project. Cov kev daws teeb meem suav nrog kev siv cov qib qis xws li Q345E (khaws cia 270 Charpy cuam tshuam ntawm -40 degree) lossis ntxiv cov roj ntsha / chromium alloys. Thermal rwb thaiv tsev (cov pam vov pam vov) tseem qeeb qeeb thaum tshav kub kub ploj, thaum thicker flanges (15}}. 10 Cov kev ntsuas no ua kom muaj H-Beams ua kev ntseeg tau nyob rau hauv cov cheeb tsam txias xws li Canada lossis Northern Suav teb.
