Kuv-beams, kuj hu uaH-beams, yog ib qho ntawm cov khoom siv dav siv nyob rau hauv niaj hnub engineering thiab kev tsim kho. Lawv iconicI- lossis H-shaped cross-sectionmuab lawv lub peev xwm thauj khoom zoo tshaj plaws thaum txo qis kev siv cov khoom siv, ua rau lawv zoo tagnrho rau ntau yam kev siv los ntawm cov tsev thiab txuas hniav mus rau kev tsim cov nkoj thiab kev lag luam.
Nyob rau hauv tsab xov xwm no, peb yuav dhia tob rau hauv lubhom I-beams, lawvstructural anatomy, thiabvim li cas lawv thiaj li tseem ceebnyob rau hauv kev tsim kho thiab infrastructure tej yaam num.
Ⅰ. Hom I-Beams thiab lawv cov yam ntxwv
Tsis yog txhua qhov I-beams yog tib yam. Muaj ntau qhov sib txawv raws li cov duab, flange dav, thiab lub web thickness. Txhua hom ua haujlwm txawv cov hom phiaj nyob ntawm qhov yuav tsum tau ua, kev txhawb nqa, thiab cov qauv tsim.
1. Txheem I-Beam (S-Beams)
Kuj hu ua yooj yim liKuv-beams, covS-beamyog ib qho ntawm cov ntaub ntawv tseem ceeb tshaj plaws thiab ib txwm muaj. Nws yog feem ntau siv hauv North America thiab ua raws li ASTM A6 / A992 specifications.
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Parallel Flanges: I-beams muaj qhov sib npaug (qee zaum me ntsis tapered) flanges.
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Nqaim Flange Dav: Lawv flanges yog nqaim dua piv rau lwm yam flange beam hom.
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Peev xwm: Vim lawv cov flanges me me thiab nyias nyias, cov qauv I-beams haum rau cov khoom sib zog thiab feem ntau yog siv rau hauv cov phiaj xwm me me.
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Muaj Lengths: Feem ntauKuv-beamsyog tsim nyob rau hauv ntev mus txog 100 ko taw.
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Tej kev siv: Pem teb joists, ru tsev kab teeb, thiab kev txhawb nqa hauv cov tsev qis.
2. H-Piles (Cov Kabmob Piles)
H-pilesyog cov kab hluav taws xob hnyav tsim tshwj xeeb rau kev sib sib zog nqus hauv paus thiab piling systems.
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Dav, Thick Flanges: Qhov dav flange nce lateral thiab axial load kuj.
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Sib npaug Thickness: Lub flange thiab lub vev xaib feem ntau muaj qhov sib npaug ntawm qhov sib npaug rau qhov sib npaug zog.
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Hnyav Load Bearing: H-piles yog tsim rau ntsug tsav mus rau hauv av los yog bedrock thiab tuaj yeem txhawb nqa siab heev.
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Siv hauv Foundations: Zoo tagnrho rau cov choj, cov tsev siab siab, cov qauv hauv hiav txwv, thiab lwm yam kev siv hluav taws xob hnyav.
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Tsim qauv: Feem ntau ua raws li ASTM A572 Qib 50 lossis cov lus qhia zoo sib xws.
3. W-Beams (Wide Flange Beams)
W-beams, los yogWide Flange Beams, yog cov kab teeb uas siv dav tshaj plaws hauv kev tsim kho niaj hnub no.
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Wider Flanges: Muab piv rau tus qauv I-beams, W-beams muaj flanges uas yog ob qho tib si dav thiab feem ntau tuab.
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Variable Thickness: Flange thiab web thickness tuaj yeem sib txawv nyob ntawm qhov loj thiab daim ntawv thov, uas muab kev yooj yim dua hauv kev tsim qauv.
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High Strength-rau-Weight Ratio: W-beam cov duab zoo ua kom muaj zog thaum txo cov khoom hnyav tag nrho.
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Kev siv ntau yam: Skyscrapers, steel tsev, txuas hniav, shipbuilding, thiab industrial platforms.
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Kev siv thoob ntiaj teb: Muaj nyob hauv Europe, Asia, thiab Asmeskas; Feem ntau tsim rau EN 10024, JIS G3192, lossis ASTM A992 tus qauv.
Stainless hlau HI Beam welded kab
CovStainless hlau H/I beam welded kabyog ib tug high-efficiency ntau lawm txheej txheem siv los tsim cov qauv kab teeb los ntawmkoom nrog stainless hlau daim hlau los ntawm submerged arc vuam (SAW) or TIG/MIG weldingcov txheej txheem. Nyob rau hauv cov txheej txheem no, tus kheej flange thiab lub vev xaib daim hlau tau raug sib sau ua ke thiab tsis tu ncua welded los ua qhov xav tau.H-beam lossis I-beam profile. Cov kab hluav taws xob welded muab cov cuab yeej zoo heev, kev tiv thaiv corrosion, thiab qhov tseeb qhov tseeb. Txoj kev no yog siv dav rau kev tsim khoomkev cai-loj kab teebrau kev tsim kho, marine, thiab kev lag luam daim ntawv thov qhov twg cov qauv kub dov tsis muaj. Cov txheej txheem vuam kom ntseeg tautag nrho nkag mus thiab muaj zog pob qij txha, tso cai rau cov nqaj kom dais cov qauv hnyav thaum tswj xyuas qhov zoo tshaj plaws corrosion tsis kam ntawm stainless hlau.
Ⅱ. Anatomy ntawm I-Beam
Kev nkag siab txog tus qauv ntawm I-beam yog qhov tseem ceeb rau kev txaus siab vim li cas nws ua tau zoo nyob rau hauv kev ntxhov siab.
1. Flanges
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Covsab saum toj thiab hauv qab kab rov tav daim hlauntawm beam.
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Tsim los tiv thaivkhoov lub sij hawm, lawv tuav compressive thiab tensile stresses.
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Flange dav thiab thickness loj txiav txim siab qhovbeam lub peev xwm load-bearing.
2. Web
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Covntsug phajtxuas cov flanges.
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Tsim los tiv thaivzog shear, tshwj xeeb tshaj yog nyob rau hauv nruab nrab ntawm lub beam.
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Web thickness cuam tshuam rauzuag qhia tag nrho shear zogthiab nruj ntawm lub beam.
3. Ntu Modulus thiab Moment of Inertia
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Ntu Modulusyog cov cuab yeej geometric uas txhais cov nqaj lub zog los tiv thaiv kev khoov.
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Lub sijhawm ntawm Inertiantsuas qhov tsis kam rau deflection.
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Qhov tshwj xeebI-puabmuab qhov sib npaug zoo heev ntawm lub sijhawm muaj peev xwm nrog cov khoom siv tsawg.
Stainless hlau HI Beam R Angle Polishing
CovR lub kaum sab xis polishingtxheej txheem rau stainless hlau H/I beams hais txog covprecision polishing ntawm sab hauv thiab sab nrauv fillet (radius) fabqhov twg flange thiab web ntsib. Cov txheej txheem no txhim kho covnto smoothnessthiabaesthetic thovntawm beam thaum tseem txhim khocorrosion kujlos ntawm kev tshem tawm weld discoloration, oxides, thiab nto roughness nyob rau hauv lub nkhaus hloov chaw. R lub kaum sab xis polishing yog qhov tseem ceeb tshwj xeeb rauarchitectural, sanitary, thiab cleanroom applications, qhov twg ob qho tib si tsos thiab kev nyiam huv yog qhov tseem ceeb. Polished radius fab ua rauib tug uniform tiav, txo qhov kev pheej hmoo ntawm kev sib kis kab mob, thiab ua kom yooj yim ntxuav. Cov kauj ruam ua tiav no feem ntau ua ke nrog tag nrho saum npoo polishing (xws li, No.4 lossis daim iav tiav) kom tau raws li nrujkho kom zoo nkauj lossis haumxeeb qauv.
Ⅲ. Daim ntawv thov ntawm I-Beams hauv Kev Tsim Kho
Vim tias lawv lub zog siab thiab kev ua haujlwm zoo, I-beams thiab H-beams tau siv rau hauv txhua yam kev tsim kho thiab kev tsim vaj tsev hnyav.
1. Cov tsev lag luam thiab chaw nyob
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Main Structural Frames: Siv nyob rau hauv txhua kab, kab teeb, thiab girders los txhawb ntau lub tsev.
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Ru tsev thiab pem teb Systems: I-beams tsim ib feem ntawm cov pob txha pob txha uas txhawb cov plag tsev thiab ru tsev.
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Industrial Platforms thiab Mezzanines: Lawv lub peev xwm thauj khoom siab yog qhov zoo tagnrho rau kev tsim kho hauv pem teb mezzanine.
2. Kev tsim kho vaj tse
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Choj thiab Overpasses: W-beams thiab H-piles feem ntau yog siv rau hauv choj girders thiab lawj txhawb nqa.
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Railway Structures: I-beams yog siv rau hauv cov txaj khiav thiab txhawb nqa.
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Txoj kev loj: Guardrails feem ntau siv W-beam steel profiles rau kev cuam tshuam.
3. Marine thiab Offshore Engineering
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Port Facilities thiab Piers: H-piles tau tsav mus rau hauv cov av hauv qab dej tsim kev txhawb nqa.
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Shipbuilding: Lub teeb yuag tsis tau muaj zog I-nqaj yog siv rau hauv cov thav duab thiab decks.
4. Kev tsim khoom thiab khoom siv
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Machinery Support Frames: I-beams muab lub hauv paus muaj zog rau cov khoom siv mounting.
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Crane thiab Gantry Beams: High-strength W-beams pab raws li cov nyiaj siv ua haujlwm los yog lem.
Ⅳ. Qhov zoo ntawm I-Beams
Engineers thiab architects xaivKuv-beamsvim tias lawv muaj ntau yam qauv thiab nyiaj txiag txiaj ntsig:
1. Siab zog-rau-hnyav piv
Lub I-shape maximizes load-bearing muaj peev xwm thaum siv cov khoom siv tsawg, ua rau txo qis steel noj thiab qhov project nqi.
2. Tsim Flexibility
Qhov ntau thiab tsawg thiab hom sib txawv (xws li, S-beams, W-beams, H-piles) muaj los ua kom tau raws li ntau yam kev xav tau.
3. Nqi-zoo
Vim lawv qhov profile optimized thiab nthuav dav, I-beams muab ib qho zoo tshaj plawstus nqi-kev ua tau zoo pivhauv kev tsim steel.
4. Yooj yim ntawm Fabrication thiab Vuam
Flanges thiab webs tuaj yeem txiav tau yooj yim, drilled, thiab welded siv cov txheej txheem tsim khoom.
5. Durability
Thaum tsim los ntawmhigh-strength steel qauv(xws li ASTM A992, S275JR, Q235B), I-beams muaj kev tiv thaiv zoo heev rau hnav, corrosion, thiab cuam tshuam.
Ⅴ. I-Beam Xaiv Cov Cai
Thaum xaiv txoj cai homKuv-beamRau ib qhov project, xav txog cov hauv qab no:
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Load Requirements: Txiav txim siab axial, shear, thiab dabtsi yog khoov loads.
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Ntev Ntev: Ntev spans feem ntau xav tau flanges wider los yog siab dua seem modulus.
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Foundation lossis Frame Type: H-piles rau lub hauv paus tob; W-beams rau thawj framing.
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Khoom Qib: Xaiv cov qib steel zoo raws li lub zog, weldability, thiab corrosion kuj.
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Kev Ua Raws Cai: Xyuas kom cov nqaj ua tau raws li ASTM, EN, lossis JIS cov qauv rau koj cheeb tsam lossis qhov project.
Xaus
I-beams-txawm yog tus qauvS-beams, W-beams, los yog hnyav hnyavH-piles- yog covpob txha ntawm niaj hnub structural engineering. Lawv cov qauv tsim tau zoo, ntau yam kev teeb tsa, thiab cov khoom siv kho tshuab zoo heev ua rau lawv haum rau txhua yam ntawm skyscrapers rau txuas hniav, tshuab mus rau ntug dej hiav txwv rigs.
Thaum siv kom raug,Kuv-beamsmuab lub zog tsis sib xws, durability, thiab kev lag luam hauv kev tsim kho. Kev nkag siab qhov sib txawv ntawm txhua hom tuaj yeem pab engineers, builders, thiab procurement specialists txiav txim siab paub uas yuav optimize obkev ua tau zoo thiab tus nqi-efficiency.
Post lub sij hawm: Jan-31-2024