Peb cov hlau U-zoo li tus stiffener yog thawj longitudinal stiffening ntsiab nyob rau hauv orthotropic steel decks. Welded rau lub lawj phaj los tsim ib qho tseem ceeb load-resisting system, lawv ho txhim khu lub zuag qhia tag nrho nruj, load- bearing muaj peev xwm, thiab qaug zog tsis kam ntawm lub lawj qauv. Lawv tau dav siv nyob rau hauv steel box girder txuas hniav, cables - nyob twj ywm choj, ncua kev kawm ntawv choj, koov choj, thiab lwm yam steel choj tej yaam num.
Tsis tas li ntawd, peb muab cov kev daws teeb meem customized hauv ntau qhov ntev, qib steel, thiab cov txheej txheem tsim khoom (kub- dov lossis txias- tsim) kom ua tau raws li cov qauv tsim thiab kev tsim kho ntawm txhua qhov haujlwm.
Specification ntawm Steel Choj Standard U-rib
| Yam khoom | Specification |
|---|---|
| Khoom npe | Steel Choj U-rib |
| Kev piav qhia | Longitudinal Stiffener rau Orthotropic Steel Deck Systems |
| Kev tsim khoom | Kub-Rolled lossis Cold-Formed |
| Khoom Qib | Q355C/D/E, Q420qD/E, ASTM A709 Qib 50/50W, EN 10025 S355J2+N los yog sib npaug |
| Khoom Txheem | GB / T 714, ASTM A709, EN 10025, JIS G3106 lossis Project Specifications |
| Qhov ntev | Customized raws li qhov project drawings |
| Thickness | Feem ntau 6-12 hli (Customized) |
| Dav / Qhov siab | Customized |
| Ntev | Customized (feem ntau txog 18 m) |
| Dimensional kam rau ua | Raws li qhov project specifications |
| Surface condition |
|
| Kev tshuaj xyuas | Kev Ntsuam Xyuas Kev Pom Kev (VT), Kev Tshawb Fawb Txog Kev Pom Zoo, UT, MT & Mechanical Testing |
| Daim ntawv thov | Orthotropic Steel Decks, Steel Box Girder Choj, Cable -Txoj kev nyob twj ywm, Ncua Txuas Txuas, Arch Bridges, Kev loj & Railway Choj |
| Kev kho kom haum | Dimensions, Steel Qib, Nto tiav & ntim |
| Ntim | Hlau Ncej, Ntoo Thaiv & Seaworthy Packing |
📋 Kev ntxhov siab txog kev ua raws li cov khoom siv thoob ntiaj teb? ➔Tiv tauj pebkom tau txais daim ntawv pov thawj zeb ua tau raws li ASTM / EN cov qauv.
Qhov zoo ntawm Steel Choj U-shaped Rib
Qhov Tseem Ceeb Tshaj Qhov Zoo
Raws li cov txheej txheem kev daws teeb meem zoo tshaj plaws rau niaj hnub ntev - ncua txuas txuas, U-rib-stiffened steel lawj hnyav li ntawm ib qho -peb ntawm ib qho kev ua vaj huam sib luag. Qhov notxo tag nrho cov qauv ntawm tus kheej- hnyav los ntawm 15% mus rau 20%, zoo heev relieving cov bearing xav tau ntawm tus choj substructure thiab txhim kho lub spanning muaj peev xwm.
High Flexural thiab Torsional Stiffness
U-rib yog kaw-section stiffener nrog siab torsional nruj, zoo txhim kho cov kev ntxhov siab nyob rau hauv lub lawj phaj thiab muab flexural rigidity ntau (piv txwv li, zoo heev flexural kev ua tau zoo ntawm qhov tob ntawm 280 mm). Nws tseem ceeb heevtxhim khu lub zuag qhia tag nrho nruj thiab load- bearing peev xwm ntawm tus chojthaum txo cov kev ntxhov siab nyob rau hauv lub lawj phaj thiab txhim kho cov txheej txheem durability.
Zoo Fatigue Resistance
Cov seem kaw ntawm U- tav thiab nws qhov dej - qhov dav dav - mus rau - thickness ratio (piv txwv li, khaws cia nyob rau hauv 22 nyob rau hauv carriageway cheeb tsam) zoo tswj lub zos nruj ntawm lub lawj stiffener,txo cov kev ntxhov siab hauv zos, thiab txwv lawj phaj deflection nyob rau hauv localized log loads. Qhov no txo qis qhov kev pheej hmoo ntawm kev qaug zog tawg pib thiab txuas ntxiv lub neej kev pabcuam ntawm tus choj.
Kev tsim kho siab thiab kev tu kom zoo
U-ribs feem ntau yog khw-prefabricated thiab ntsia rau ntawm qhov chaw. Qhov no tawm - qhov chaw tsim khoom ua kom yooj yim rau kev tsim kho, txo qhov ntim ntawm kev ua haujlwm, ntau heevshortens lub sij hawm tsim kho, thiab txo cov nqi tsim kho. Tsis tas li ntawd, U-ribs yog tsim los ntawm siab- cov hlau zoo nrog lub zog ruaj khov thiab corrosion tsis kam, muab lub neej ua haujlwm ntev nrog kev siv sijhawm tsawg heev - cov nqi tu.
Daim ntawv thov ntawm Steel U-shaped Rib
Orthotropic Steel Decks (Girder Superstructure).U-ribs ua haujlwm raws li longitudinal stiffeners welded rau sab saum toj flange (dawb phaj), sib npaug faib cov log tsheb thauj khoom thoob plaws hauv cov qauv.
Ntev -Span Bridges.Dav siv nyob rau hauv kilometer-chav kawm ntev- ncua txuas txuas - suav nrog cov txuas txuas txuas txuas, cable- nyob txuas ntxiv, thiab cov choj koov - qhov uas lawv tseem ceeb heev kom ua tiav cov qauv sib sib zog nqus nrog lub peev xwm tshwj xeeb.
Nruam Steel Box Girder Choj.Feem ntau siv nyob rau hauv lub lawj daim hlau ntawm lub thawv girders rau nroog viaducts, interchanges, thiab overpasses.
Steel Truss thiab Arch Choj Decks.Siv raws li lub lawj system rau hnyav - tsheb ciav hlau txuas hniav thiab ntev - ncua arch txuas hniav.
Ob txoj kev tsim khoom rau U-rib
Peb orthotropic steel lawj U- tav yog tsim los siv ob txoj hauv kev: kub- dov txheej txheem thiab txias- txheej txheem txheej txheem. Ob txoj kev tsim khoom no muab cov kev daws teeb meem sib txawv rau kev siv orthotropic steel lawj. Kev xaiv ntawm cov txheej txheem tsim khoom yog nyob ntawm qhov kev xav tau tshwj xeeb, suav nrog cov qauv tsim qauv, cov khoom tshwj xeeb, kev ua haujlwm ntau lawm, thiab cov kev pabcuam tiag tiag.
| Sib piv Dimension | Kub Rolled U-Rib | Txias Bent U-Rib |
|---|---|---|
| Kev tsim khoom | Rhaub phaj txuas ntxiv dov mus rau hauv ib qho -daim profile ntawm ib lub rolling mills | Ambient-kub ntau- kis tau txias dabtsi yog khoov ntawm steel phaj |
| Residual Stress & Fatigue | Ultra-kev nyuaj siab qis, tsis khoov hardening,zoo heev tiv thaiv- qaug zog- tawg | High residual stress & txias hardeningntawm khoov, ua rau micro qaug zog tawg, MT tshuaj xyuas yuav tsum tau ua |
| Tsawg-Tswj Cuab Yeej | Fine-cov nplej,txias txias - cheeb tsam toughness | Khoov qis-zone toughness;rov-kev pov thawj rau qhov hnyav- tej yaam num txias |
| Specification ciam teb | Cov phaj tuab, qhov siab loj, hnyav-load ntev-span standard U- tav | nyias daim hlau, pa me me - mus rau - nruab nrab decks, me -batch kev cai |
| Kev tsim khoom & xa tawm | Tsawg pawg- tus nqi tsim khoom; siab dua MOQ, ntev txhuas rau cov khoom me me | Yooj yim, xa sai rau me me -batch multi- spec xaj |
| Pom zoo Scenarios | Ntev-span box girder, hiav txwv- hla/hnyav-load, siab-durability txias- cheeb tsam tej yaam num | Hauv nroog cov pa decks, me me - mus rau - nruab nrab cov choj hauv nroog, txwv - nyiaj txiag ua haujlwm |
Los ntawm kev muab ob qho tib si kub- dov thiab txias- tsim U-rib manufacturing technologies, peb muaj peev xwm muab tau yooj yim thiab txhim khu kev qha kev daws teeb meem rau txawv choj engineering yuav tsum tau.
⚖️Struggling xaiv ntawm kub- dov thiab txias- tsim? ➔Nug tam sim norau tus nqi -kev ua tau zoo thiab kev soj ntsuam lub neej los ntawm peb cov engineers.
Peb Ib nrab Kub Rolled Sib npaug -Thickness U-Ribs Hla-Section Technical Parameters
Hauv qab no yog ib feem ntawm cov qauv kev ntsuas ntawm peb cov kub dov sib npaug -thickness choj U- tav.
Dhau li ntawm kub dov U- tav, peb kuj tsim txias- khoov U- tav thiab lees txais tsis yog - tus qauv customization raws li koj tus qauv kos duab kom txaus siab ntau yam orthotropic steel lawj engineering xav tau.
| Qauv No. | (mm) Ntu Loj B1 × H × B2 × t (mm) | Qhov hnyav (kg / m) | Thaj tsam (cm²) | Khoov Radius R1 (mm) | Qhov siab y0 (cm) | Lub sijhawm ntawm Inertia Ix (cm⁴) | Lub sijhawm ntawm Inertia Iy (cm⁴) | Ntu Modulus Wy (cm³) | Section Modulus Wx max (cm³) | Ntu Modulus Wx min (cm³) |
|---|---|---|---|---|---|---|---|---|---|---|
| U-1 | 300×280×170×6 | 33.5 | 42.7 | 30 | 11.4 | 3455 | 4732 | 315 | 304 | 207 |
| U-2 | 300×280×170×8 | 44.4 | 56.6 | 40 | 11.4 | 4530 | 6181 | 412 | 397 | 273 |
| U-3 | 300×280×170×10 | 55.3 | 70.4 | 50 | 11.3 | 5559 | 7567 | 507 | 490 | 334 |
| U-4 | 300×260×184×6 | 32.5 | 41.4 | 30 | 10.2 | 2976 | 4721 | 315 | 293 | 186 |
| U-5 | 400×260×250×6 | 36.2 | 46.1 | 30 | 9.3 | 3384 | 8984 | 449 | 363 | 201 |
| U-6 | 400×260×250×8 | 47.7 | 60.8 | 40 | 9.5 | 4426 | 11745 | 587 | 467 | 264 |
Nco tseg: Tag nrho cov ntaub ntawv saum toj no yog qhov tseem ceeb theoretical raws li cov qauv kev lag luam hauv tsev thiab tsuas yog muab rau cov qauv tsim qauv siv xwb. Qhov tseeb qhov ntev thiab cov khoom siv kho tshuab yuav tsum yog raws li cov txiaj ntsig ntawm kev ua tiav - cov khoom kuaj. Rau qhov tsis yog - qauv specifications, thovxa koj qhov project drawingsthiab peb yuav muab cov kev daws teeb meem customized thiab hais.
Peb Kev Tswj Xyuas Zoo rau Steel Choj U-Ribs
Peb siv tag nrho - txheej txheem kev tswj kom zoo npog cov khoom raw khoom nkag, kev ua tiav kev ua tiav thiab ua tiav- cov khoom kuaj. Advanced tsis siv neeg ua cov cuab yeej stabilizes qhov tseeb qhov tseeb thiab txo qis qhov tshwm sim ntawm qhov tsis xws luag, thaum ua tiav cov cuab yeej tshuaj xyuas thiab cov cuab yeej NDT tau nruab rau kev kuaj xyuas zaum kawg ua ntej xa khoom.
Raw Material Inspection
Tshawb xyuas daim ntawv pov thawj zeb xeem, qib steel, cov khoom siv kho tshuab, thiab lub hauv paus phaj thickness. Tshawb xyuas cov lamination thiab thawj qhov chaw tsis xws luag hauv cov phaj steel.
Geometric Dimension Inspection
Ntau- taw tes tshuaj xyuas ntawm tus ntoo khaub lig- ntu ntu (sab saum toj qhib dav B1, tav qhov tob H, hauv qab qhib dav B2, phaj thickness t, khoov vojvoog R1). Tag nrho -Length soj ntsuam ntawm ncaj, twist, zuag qhia tag nrho ntev, thiab xaus squareness kom ua tau raws li qhov yuav tsum tau ua kam rau ua.
Visual Surface Inspection
Tshawb xyuas cov dov lossis khoov qhov chaw hloov chaw. Cracks, tearing, indentations, thiab ntse burrs yog tsis tso cai, raws li cov no yuav ua rau qaug zog kev nyuaj siab concentration qhov chaw..
Tsis yog -Kev kuaj kev puas tsuaj (raws li xav tau)
Splice welds tej zaum yuav raug kuaj ultrasonic (UT) thiab sib nqus particle kuaj (MT). Sib nqus particle kuaj ntawm txias- tsim U-rib khoov zones tuaj yeem ua raws li qhov yuav tsum tau ua.
Anti-Corrosion Surface Treatment Inspection
Tswj lub moj tej tawg huv huv qib (Sa2.5), nto roughness, txheej zaj duab xis thickness, thiab txheej adhesion.
Ua kom tiav cov ntaub ntawv soj ntsuam
Tag nrho cov ntaub ntawv soj ntsuam thiab cov ntaub ntawv pov thawj muaj, txaus siab rau kev saib xyuas kev tsim kho thiab kev lees txais zaum kawg.
🔍 Ntshai qhov kev pheej hmoo ntawm qaug zog tawg hauv welds? ➔Nug peb rau qhov tsis yog -kev kuaj kev puas tsuaj (PAUT/MT)cov ntaub ntawv ceeb toom kom ruaj ntseg koj qhov project.
Packing & Delivery of Steel Choj Deck U-rib
Bundling thiab Grouping.Cov pawg thiab pob khoom siv siab - lub zog steel strapping lossis welded thauj ncej. Cov pob khoom raug teeb tsa los ntawm cov phiaj xwm tshwj xeeb kom haum rau kev sib dhos ntawm cov khoom siv choj.
Kev tiv thaiv corrosion.Bare steel feem ntau yog coated nrog lub khw primer. Kev tiv thaiv qhwv, ntawv yas, lossis lub kaus mom kawg ib ntus feem ntau siv los tiv thaiv kev puas tsuaj thaum tuav thiab hla.
Lifting thiab Rigging.Siv cov hlua khaus lossis cov kab padded spreader beams ua ke nrog cov nyiaj siv ua haujlwm cranes los tiv thaiv kev sib tw lossis deformation ntawm tus tav profile.
Stability thiab Dunnage.Ntoo lossis roj hmab dunnage yog muab tso rau nruab nrab ntawm cov tav tav thiab nruab nrab ntawm cov tav thiab lub txaj trailer kom nqus tau rau hauv - kev poob siab thiab tiv thaiv kev hloov.
FAQ:
Vim li cas U-Ribs dav siv hauv kev tsim choj?
Zoo heev Torsional Stiffness. Piv nrog rau cov tav qhib xws li cov kab tiaj tiaj, U- tav tav yog kaw cov tav nrog qhov sib zog torsional ntau dua, txhim kho kev ntxhov siab hauv zos.
Lightweight Design. Siab-lub zog steel ua ke nrog U-rib teeb tsa tuaj yeem txo tus kheej - hnyav ntawm tus choj lawj - qhov tseem ceeb rau qhov ntev - ncua kev ncua thiab cable- nyob txuas hniav.
Muaj zog Load-Bearing Capacity. U-ribs zoo faib lub tsheb log loads, nrog ib tug meej thiab zoo- txhais tag nrho cov yam ntxwv load txoj kev.
Dab tsi ua koj lub luag haujlwm - Ribs Ua si hauv tus choj hlau?
U-ribs (longitudinal ribs) khiav raws qhov ntev ntawm tus choj thiab yog welded rau transverse diaphragms thiab lub lawj phaj. Lawv lub luag haujlwm tseem ceeb yog muab cov flexural thiab torsional nruj, ua kom tag nrho lub lawj ua kom muaj kev sib koom ua ke hauv kev tiv thaiv cov tsheb thauj khoom nyuaj thaum ua kom lub teeb yuag.
Yuav Ua Li Cas Hais Txog Cov Teeb Meem Ua Si hauv U-Rib Welds?
Ob chav -Sided Vuam Technology. Kev lig kev cai ib leeg -sab vuam yog feem ntau tsis muaj hauv paus fusion. Advanced fabrication txoj kev tam sim no koom nrog hauv U-rib vuam tshuab, siv cov neeg hlau nkag mus ua kom tiav tag nrho -kev nkag mus rau ob- sab welds - ua rau lub neej qaug zog ntawm cov welds.
Refined Detailing. Optimizing fillet weld ceg loj, txhim kho zawj machining raug, thiab post-weld sib tsoo tuaj yeem txo qhov kev ntxhov siab.
Yuav Ua Li Cas Ntxiv lossis Kho U-Ribs Tom Qab Fatigue Cracking?
Local Sib tsoo thiab kho Vuam. Rau qhov tob micro- tawg, qhov tsis xws luag tuaj yeem raug tshem tawm los ntawm kev sib tsoo lossis kho los ntawm lub zos re- vuam.
Internal Stiffener / Lub Tes Tsho Reinforcement. Weld ib lub tes tsho los yog U-zoo li tus stiffening phaj sab hauv U- tav los ua kom qhov tawv nqaij ntawm thaj tsam cuam tshuam.
Ntxiv Damping Devices lossis Longitudinal Rib Connections. Restrain lub zos deformation kom qeeb tus nqi ntawm tawg propagation.
Yuav ua li cas txhawm rau txheeb xyuas qhov tsis xws luag hauv U-Rib Welds?
Vim yog qhov sib txuas thiab nqaim - ntu ntawm U- tav, qhov kev kuaj pom hluav taws xob (RT) yog qhov nyuaj rau kev siv thiab ua tiav cov txiaj ntsig tsawg. Kev ua lag luam tam sim no feem ntau yog siv cov kev ntsuam xyuas theem ntawm ultrasonic (PAUT) rau tsis yog- kev kuaj xyuas kev puas tsuaj, uas tuaj yeem ua tau zoo dua thiab muaj txiaj ntsig zoo los kuaj xyuas qhov tsis xws li cov kab nrib pleb thiab tsis muaj fusion hauv qhov vuam.
