Peb welded steel kem kem yog engineered rau siab - nce vaj tse, ntev - ncua choj, cov qauv nyob rau hauv seismic- tsim cheeb tsam, thiab hnyav industrial thav duab. Fabricated los ntawm premium steel daim hlau (Q355B/C/D/E, Q420, S355JR/J0/J2, ASTM A572 Gr.50/60) siv automated submerged arc vuam (SAW) thiab electroslag welding (ESW) cov txheej txheem, lawv xa superior torsional muaj peev xwm 1 rigidity, - buckling kuj piv rau qhib H-sections.
Txhua txhua kab tau dhau 100% tsis yog- kev kuaj kev puas tsuaj (ultrasonic UT, magnetic particle MT, thiab radiographic RT raws li qhov xav tau), txhawb nqa los ntawm CE EN 1090 ntawv pov thawj, AWS D1.1 tau ntawv pov thawj vuam, thiab ISO 9001: 2015 kev tswj hwm kev lees paub zoo. Peb muab tag nrho Tekla Structures BIM qauv thiab nthuav dav cov kev pab cuam kos duab, nrog kev cai kem kab hla-section qhov tob ntawm 200 hli mus rau 1,200 hli thiab phab ntsa phaj thicknesses ntawm 10 hli mus rau 60 hli.
Hom Steel Box Kem
GNEE tsim plaub yam tseem ceeb ntawm welded steel kem kab - duab plaub, square, tapered, thiab pob zeb- ua tiav cov khoom sib xyaw - txhua tus engineered los hais txog cov qauv kev thauj khoom tshwj xeeb, geometric txwv, thiab cov cai ua raws cai. Ntu kev teeb tsa yog txiav txim siab los ntawm txoj kev thauj khoom tseem ceeb (uni-axial vs. bi-axial dabtsi yog khoov), thaj tsam seismic siv, hluav taws- ntsuas qhov xav tau, thiab cov duab kos duab kos duab. Peb pab neeg ua haujlwm engineering ua haujlwm ncaj qha nrog cov neeg tsim qauv los xaiv cov kab ke zoo tshaj plaws thiab cov seem proportions, ua kom cov khoom siv tau zoo yam tsis muaj kev cuam tshuam cov qauv kev ua haujlwm.
Rectangular Box Kab
Rectangular box seem steel kab muajntau yam -kev taw qhia load kuj, ua rau lawv xaiv ntau tshaj plawsrau kev tsim lub moj khaum thiab choj piers.Cov seem asymmetrical tuaj yeem ua kom zoo rau unidirectional dominant loading.
Square Box Kab
Cov seem square muab cov khoom sib xwskhoov tsis kamthiabtorsional rigiditynyob rau hauv tag nrho cov lus qhia, zoo tagnrho rau cov qauv uas raugcomplex bi-axial loading thiab siab seismic xav tau qhov kev ua tau zoo sib npaug yog qhov tseem ceeb.
Tapered Box Kab
Tapered box kab kem steelnta ib qho maj mam txo tus ntoo khaub lig- ntu raws nws qhov siab, optimizing khoom faibqhov twg load txo nrog nce - feem ntau siv nyob rau hauvchoj pylons, canopy kab, thiab chaw ntau pob ru tsev txhawb nqa.
Qhob-Filled Steel Box Kem (CFSBC)
Rau cov haujlwm uas xav tau kev ntsuas hluav taws zoo (txog 3 teev) thiab kev ua haujlwm seismic nce ntxiv, cov tub ntxhais hollow tuaj yeem sau nrog C30-C60 pob zeb, tsim ib qho composite kem nrogsuperior hluav taws tsis kam, axial muaj peev xwm, thiab ductility- nthuav dav hauvsiab-nce thiab seismic- cheeb tsam kev tsim kho.
Specification ntawm Box Kem
| Parameter | Specification |
|---|---|
| Tshooj Hom | Square / Rectangular / Tapered / Custom |
| Ntu qhov tob | 200mm-1200mm (kev cai) |
| Phaj Thickness | 10mm-60mm |
| Kem Length | Txog li 15,000mm (sectional rau ntev spans) |
| Khoom Qib | Q355B/C/D/E, Q420, S355JR/J0/J2, ASTM A572 Gr.50/60 |
| Vuam txheej txheem | Tsis Siv Neeg SAW, Electroslag Vuam (ESW) |
| Diaphragm Spacing | 1.0-1.5 × seem qhov tob (ib tsim) |
| Dav -rau-Thickness Ratio | Ua raws li GB 50011 / EN 1998 seismic txwv |
| NDT Quality Control | 100% UT, MT; X-ray ib qho kev xav tau |
| Qhob Fill (yeem) | C30-C60 rau kev ua haujlwm sib xyaw |
| Seismic Rating | Txog Qib Tshwj Xeeb (GB 50011) |
| Kev ntsuas hluav taws | Txog li 3 teev (nrog cov pob zeb ua tiav) |
| Nto tiav | Txhaj tshuaj tua kab mob Sa2.5 + epoxy zinc- nplua nuj txheej, lossis HDG |
| Kev pab qhia ntxaws | Tekla Structures (BIM) modeling + shop drawings |
| Daim ntawv pov thawj | ISO 9001: 2015, CE (EN 1090), AWS D1.1 Certified Welding |
| Ntim | Hnyav-lub luag haujlwm steel pallet & bracing rau seaworthy export |
Lub luag haujlwm tseem ceeb ntawm cov qauv diaphragms rau lub thawv kab
Txhim kho Local Stability:Tiv thaiv buckling ntawm phaj ntsiab thiab ntxiv dag zog rau kev ruaj ntseg nyob rau hauv compression thiab dabtsi yog khoov.
Uniform Force Distribution:Disperse complex internal rog thiab tshem tawm cov kev ntxhov siab hauv zos concentration.
Minimize Distortion:Restrain welding deformation thiab khaws cov kab qhov ntev ntawm qhov ntev.
Optimize Seismic Performance:Txhim khu lub zog dissipation, ductility thiab load peev tiv thaiv seismic loads.
Cov txheej txheem khoom ntawm lub thawv kab
Pebsteel box kem fabricationUa raws li 10-kauj ruam tswj kev ua haujlwm hauv peb lub Hoobkas ISO 9001-certified, kom ntseeg tau qhov tseeb qhov tseeb, zoo ib yam weld zoo, thiab tag nrho cov zoo traceability:
CNC txiav & Beveling
Precision phaj npaj nrog V / U-zoo li tus grooves rau tag nrho - nkag vuam, siv thermal txiav nrog ntug kev npaj rau cov pob qij txha tseem ceeb.
Ntug Kev Npaj
Nplaim txiav los yog ntug kev npaj kom ua tiav cov kaum sab xis thiab cov hauv paus ntsiab lus ntawm AWS D1.1 / EN 1090.
Internal Diaphragm Assembly
Lub tswv yim muab tso rau ntawm transverse stiffeners ntawm 1.0-1.5 × seem qhov tob kom muab superiortorsional rigidity thiab tiv thaiv lub zos buckling..
Seem Assembly & Alignment
Hydraulic haum-li ntawm plaub daim hlau nrog precision jigs los tswj qhov ntev nyob rau hauv kam rau ua.
Automated Submerged Arc Vuam (SAW)
Siab -lub zog longitudinal ces kaum welds nrog tswj cov cua sov input, kom ntseeg tau zoo ib yam weld zoo thiab tsawg distortion.
Electroslag Vuam (ESW)
Tshwj xeeb vuam los ntawm ua ntej -drilled qhov kom ntseeg tau tias muaj kev sib txuas ntawm cov diaphragms sab hauv thiab cov phaj sab nraud - tseem ceeb heev rau seismic load hloov.
Ua ntej-Kev kho
Dimensional kho thiab straightening thaum vuam deformation yog cia siab tias, tswj kab ncaj nraim hauv L / 1000.
NDT Inspection
100% ultrasonic kuaj (UT) thiab sib nqus particle kuaj (MT) ntawm tag nrho cov welds; radiographic X-ray testing per client specifications, with weld traceability records.
Kev kho saum npoo
Sa 2.5 qib txhaj tshuaj blasting ua raws li siab -kev ua tau zooepoxy zinc- nplua nuj txheejlos yogKub dip galvanizing (HDG)raukev tiv thaiv corrosionhauv C3-C5 ib puag ncig.
Packing & Tagging
Hnyav -lub luag haujlwm seaworthy ntim rau ntawm cov hlau skids nrog weatherproof cim txuam Tekla erection drawings rau ceev ceev ntawm qhov chaw.
Box Columns vs. H-Section Columns:Key Mechanical Properties
| Khoom | H-Section Kem | Kem |
|---|---|---|
| Axial Compression | Lub peev xwm qis dua (me me me-axis moment of inertia) | Muaj peev xwm siab dua (kaw ntu, loj inertia ntawm ob lub axes) |
| Torsion Performance | Tsawg rigidity; nws yooj yim rau twist thiab warp nyob rau hauv torque | Zoo torsion kuj; zoo tagnrho rau torsional loads |
| Khoov (Bi-axial) | Muaj zog ntawm X-axis, tsis muaj zog ntawm me Y-axis | Balanced, zoo heev bending kuj ntawm ob axes |
| Kev ruaj ntseg | Yuav tsum tau stiffeners; me -axis slenderness xav tau kev tswj | Superior hauv zos & tag nrho stability; siab dua stability coefficient |
| Seismic Performance | Nruab nrab; txwv ductility ntawm qaug zog axis | Txhim khu lub zog dissipation & ductility; zoo tagnrho rau thaj tsam seismic |
| Tiv thaiv hluav taws | Sab nrauv txheej nkaus xwb | Kev xaiv pob zeb ua kom txog li 3-teev hluav taws kub |
Kev Taw Qhia Xaiv:
H- ntu kabyog tus nqi -ntau zoo rau kev cob qhia kev lag luam, warehouses, thiab cov qauv nrog cov tseem ceeb loj -axis loading.
Cov kab kemyog nyiam rau siab -nce, ntev- ncua venues, hnyav industrial vaj tse, thiab seismic- cheeb tsam cov qauv yuav tsum siab bi-axial dabtsi yog khoov tsis kam, torsional rigidity, thiab nruj seismic ua raws li.
Seismic & Hluav Taws Xob Kev Ua Haujlwm ntawm Peb Cov Txheej Txheem Welded
Seismic Ua Raws Cai
Pebwelded steel kem kabyog tsim nrogdav -rau-thickness ratio(b₀/t) ua raws li ibGB 50011(Suav seismic code) thiabTS EN 1998(Eurocode 8), nrog rau qhov sib piv tswj ntawm 19-31 nyob ntawm seb muaj zog seismic. Internal diaphragms txhim khu kev qhazog dissipation, ductility, thiab load peev tiv thaiv seismic loads. Qhov kaw ntu yog qhov tseebtorsional rigiditythiab balanced bi-axialkhoov tsis kamua cov kab ke uas nyiam tshaj plaws hauv av qeeg- cov cheeb tsam, nrog rau kev ntsuas seismic mus txogQib tshwj xeebrau GB 50011.
Kev tiv thaiv hluav taws
Intumescent txheej:60-120 feeb hluav taws tsis kam, haum rau raug architectural steel.
Qhob-Filled Composite:C30-C60 qhob infill ua tiav mus txog3-teev hluav taws kub ntsuasthaum tib lub sij hawm nce axial muaj peev xwm thiab nruj - qhov kev daws teeb meem rau siab -nce thiab tseem ceeb infrastructure.
Board Fireproofing:Gypsum los yog ntxhia wool board systems rau industrial daim ntaub ntawv.
Quality Assurance & Traceability
Kev ruaj ntseg zoo rau welded steel kem kab txuas ntxiv dhau qhov kev tshuaj ntsuam zaum kawg - nws yog embedded thoob plaws hauv tag nrho cov fabrication saw, los ntawm raw steel phaj ntawv pov thawj rau weld traceability ntawm txhua qhov sib koom ua ke. Ntawm GNEE, txhua txhua kab yog tsim nyob rau hauv cov ntaub ntawv tswj kev ua tau zoo (ISO 9001: 2015) nrog cov txheej txheem vuam tsim nyog rau AWS D1.1 thiab EN 1090-2. Cov lus hauv qab no qhia txog peb cov peev txheej QA thiab kev tswj xyuas kev taug qab:
| QA yam | Txheem / Txoj Kev |
|---|---|
| Vuam Certification | AWS D1.1 / EN 1090-2, welders muaj ntawv pov thawj |
| Kev kuaj ultrasonic (UT) | 100% ntawm tag nrho cov thawj welds ib EN 1710 / GB 11345 |
| Sib nqus Particle (MT) | 100% nyob rau saum npoo thiab ntiv taw ntawm welds |
| Radiographic (X{0}}ray) | Ib tus neeg siv khoom / qhov project specification, feem ntau 10-20% |
| Material Test Certificate (MTC) | EN 10204 3.1/3.2 rau tus lej xov tooj cua sov, taug qab tau rau txhua lub phaj |
| Weld Traceability | Qhov tshwj xeeb weld ID stamped ntawm txhua qhov sib koom ua ke, txuas rau vuam, txheej txheem, thiab cov ntaub ntawv tshuaj xyuas |
| Dimensional soj ntsuam | Kev Ncaj Ncees Tsawg dua lossis sib npaug L / 1000; twist Tsawg dua lossis sib npaug li 3mm / m; hla -section kam rau ua raws li ISO 10721 |
| Txheej tshuaj xyuas | Qhuav zaj duab xis thickness (DFT) rau ISO 19840; Kev kuaj adhesion raws li ISO 4624 |
Daim ntawv thov ntawm Box Kem
High-Rise Buildings& skyscrapers
Raws li thawj ntsug load- bearing "backbone" ntawm super high -nce vaj tse,siab -nce steel kem kem leverage lawv lub zog siab- rau- qhov hnyav piv thiab kev ruaj ntseg bidirectional kom ua kom muaj kev ua tau zoo tshaj plaws thaum txo qis hneev taw.
Hnyav Industrial Rhiav & Nroj Tsuag
Qhov tseem ceeb rautxhawb nqa hnyav overhead cranes(50-200 tuj peev) thiab cov tshuab loj hauv steel mills, fais fab nroj tsuag, thiab mining chaw, qhov twg torsional rigidity thiab qaug zog kuj tseem ceeb heev.
Infrastructure & Choj Engineering
Dav davsiv raws li cov qauv piers thiab pylons ntev - txuas txuas, elevated highways, thiab railway chaw nres tsheb- seem kaw muab superior buckling kuj nyob rau hauv compressive loads.
Seismic-Zone Structures
Hauv av qeeg- cov cheeb tsam uas yooj yim, lub thawv kem 'kev txhim kho lub zog tawg thiab ductility ua rau lawvtus lej- hom kab uas nyiam rau tsev kho mob, tsev kawm ntawv, thiab cov txheej txheem tseem ceeb.
Loj -Span Public Structures
Tshav dav hlau terminals, stadiums, exhibition halls, thiab convention centerscia siab rau lub thawv kem rau kev txhawb nqa loj ru tsevthiab complex cantilevered designs nrog architectural aesthetic xav tau.
Cov cuab yeej txhawb nqa Towers
Core structural moj khaumrau cov cuab yeej siv hnyav hauv cov roj refineries, fais fab nroj tsuag, thiab mining sorting chaw, qhov twg dynamic loads thiab vibration yuav tsum tau kaw -section stiffness.
Vim li cas thiaj xaiv GNEE?
Full -Penetration Welding & ESW Diaphragm Expertise
Txhua lub kaum sab xis welds thiab sab hauv diaphragm kev sib txuas yog tag nrho -kev nkag mus, ua tiav los ntawm AWS D1.1 / EN 1090 certified welders. ESW diaphragm welds yog 100% UT-tau lees paub rau AWS D1.1 Clause 4 - tshem tawm cov kev pheej hmoo ntawm kev ua tsis tiav fusion ntawm qhov tseem ceeb tshaj plaws thauj khoom- hloov chaw.
Welding Distortion Control
Hydraulic ua ntej-clamping, tswj cov cua kub input sequencing, thiab post-weld kho kom ncaj nraim li L/1000 thiab twist nyob rau hauv 3mm/m - kab los txog qhov chaw-npaj uas tsis muaj teb rework.
Custom Section Engineering
Tsis yog- ntu txheem, tapered profiles, sib txawv ntawm phab ntsa thickness, thiab pob zeb-cov kab sib xyaw ua ke (CFSBC) - tau tsim los ntawm kev xaiv ntu mus rau kev sib txuas nthuav dav rau ib qhov project yuav tsum tau ua.
Ntau-Txoj Cai Ua Raws Cai & Traceability
CE EN 1090 (EXC2/EXC3) + AWS D1.1 + ISO 9001 certified, nrog dav -to-thickness ratios verified against GB 50011 / EN 1998 seismic provisions. Cov ntaub ntawv tag nrho rau ib qho khoom xa tuaj: MTC (EN 10204 3.1/3.2), NDT cov ntaub ntawv, thiab daim ntawv qhia kev sib txuas cov ntaub ntawv - tshawb xyuas- npaj txhij.
Hauv -Lub Tsev Tekla BIM Cov Lus Qhia
BIM qauv, kos duab kos duab, thiab kos duab erection xa hauv -tsev - ua kom paub txog kev sib tsoo thiab xa mus rau qhov chaw tsis sib haum. Kho cov duab kos rov qab tsis pub dhau 48 teev.
Kev Qhia Txog Kev Muag Khoom: Yuav Ua Li Cas
Standard vs. Custom Lead Times
| Hom | Lub Sijhawm Lead | MOQ |
|---|---|---|
| Standard qhov ntau thiab tsawg (seem seem) | 4-6 lub lis piam | 5 ton |
| Kev cai / tsis yog - qauv ntu | 8-12 lub lis piam | 1 pcs (qhov project xaj) |
| Qhob- cov kab sib xyaw ua ke | 10-14 hnub | 1 qob |
Cov ntaub ntawv peb xav tau rau Quote
Cov duab kos duab (cov qauv tsim, kab ke kab ke) lossis Tekla qauv
Cov khoom siv qib tshwj xeeb (GB / EN / ASTM)
Cov ntawv pov thawj uas yuav tsum tau muaj (CE EN 1090, AWS, thiab lwm yam)
Kev kho deg yuav tsum tau (epoxy / HDG / intumescent)
Chaw nres nkoj qhov chaw (rau shipping & packing xam)
Project Schedule (rau kev sib koom ua ke xa khoom xa mus)
Xa lus nugnrog rau koj qhov project cov ntsiab lus, thiab peb pab neeg engineering yuav teb tsis pub dhau 24 teev nrog cov ncauj lus kom ntxaws suav nrog cov khoom tawg, cov sijhawm tsim khoom, thiab kev xa khoom xa tuaj.
Packing & Delivery ntawm lub thawv kab
| Yam khoom | Specification |
|---|---|
| Ntim | Kev cai steel skid + ntoo dunnage; ua npuas ncauj tiv thaiv ntawm kaum welds thiab kawg ntsej muag |
| Chaw thau khoom | Tsawg dua lossis sib npaug ntawm 400mm: 40' OT thawv / 400-800mm: 40' FR / Tshaj 800mm: Cov nkoj loj |
| Lashing | Siab - tensile hlau hlua (tawg load Ntau dua lossis sib npaug ntawm 5 × kem qhov hnyav) + ntoo bracing, xoom- txav mus los |
| Tagging | Weatherproof steel tags matched rau Tekla erection drawings, piece marks & installation sequence |
| Lub Sijhawm Lead | Standard seem: 4-6 lub lis piam / Custom & pob zeb- puv: 8-14 lub lis piam |
| MOQ | 5 tons (tus qauv) / 1 daim (qhov project xaj) |
| Export Docs | MTC (EN 10204 3.1/3.2) + NDT cov ntaub ntawv + weld traceability + packing list + daim ntawv pov thawj ntawm keeb kwm |
FAQ:
Dab tsi yog welded steel kem kem?
Lub welded steel kem kem yog cov txheej txheem kem fabricated los ntawm welding plaub steel daim hlau mus rau hauv ib tug kaw rectangular los yog square hollow seem, feem ntau nrog diaphragms nyob rau hauv lub zos stability. Piv rau qhib H- ntu, ntu kaw muab siab dua torsional rigidity, sib npaug bi-axial dabtsi yog khoov tsis kam, thiab superior buckling kuj, ua rau nws zoo tagnrho rau siab - nce tsev, txuas hniav, thiab seismic- cheeb tsam cov qauv.
Dab tsi yog qhov ntev ntawm steel kem kab?
Steel kem qhov ntev feem ntau yog li ntawm 200mm mus rau 1200mm nyob rau hauv seem qhov tob, nrog phaj thicknesses ntawm 10mm mus rau 60mm. Kem ntev txog li 15,000mm tuaj yeem ua tiav hauv ib thooj; ntev spans siv kab - mus rau -kem splices. Kev cai tsis yog{10}} qhov loj me, tapered profiles, thiab variable phab ntsa thickness designs muaj nyob rau hauv ib qhov project yuav tsum tau.
Steel kem vs H-section kem: uas zoo dua?
Rau cov qauv ua raws li bi-axial dabtsi yog khoov, torsional loads, los yog seismic rog, kem kem ua tau zoo tshaj H-sections vim lawv raug kaw -section nrog sib npaug inertia ntawm ob axes. H- ntu tseem nqi ntau dua- ua haujlwm zoo rau cov tsev lag luam nrog cov tseem ceeb loj -axis loading. Saib peb cov lus sib piv kom ntxaws saum toj no rau kev txheeb xyuas cov khoom siv tshuab.
Cov ntawv pov thawj dab tsi muaj rau steel kem kab?
Peb cov welded steel kem tau ntawv pov thawj rau ISO 9001: 2015 (kev tswj kom zoo), CE EN 1090 (cov qauv steel fabrication), thiab AWS D1.1 (welding). Cov ntawv pov thawj khoom siv (MTC) rau EN 10204 3.1/3.2 yog muab rau txhua tus lej kub. NDT cov ntawv ceeb toom (UT, MT, X-ray) nrog rau txhua qhov khoom xa tuaj nrog kev sib txuas tag nrho.
Cov steel kem puas tuaj yeem sau nrog pob zeb?
Yog lawm. Qhob-cov thawv ntim steel (CFSBC) siv C30–C60 pob zeb ua kom tiav mus txog 3- teev hluav taws kub ntsuas, muaj peev xwm nce axial, thiab txhim kho seismic kev ua tau zoo. Qhov kev tsim qauv sib xyaw no tau hais dav dav rau siab - cov tsev nce siab thiab cov txheej txheem tseem ceeb hauv thaj chaw hluav taws kub thiab seismic.
Yuav tiv thaiv corrosion li cas?
Peb muab ob txoj kev tiv thaiv corrosion tseem ceeb: (1) Sa 2.5 txhaj tshuaj blasting + epoxy zinc-nplua nuj txheej nrog DFT 60–120μm (tsim rau C3–C4 ib puag ncig, 15–25 xyoo kev pab cuam lub neej), thiab (2) kub dip galvanizing (HDG) rau C4–C5 marine / industrial life (14 xyoo). Kev cai txheej txheej txheem ib qhov project specification muaj.
