Ib qho kev txhawb nqa yooj yim steel beam yog kab rov tav load-cov tswvcuab cov kabmob txhawb nqa ntawm ob qho kawg ntawm kev sib txuas pinned uas hloov pauv tsis muaj lub sijhawm khoov rau cov kev txhawb nqa, ua rau cov qauv txiav txim siab nrog txoj hauv kev uas tuaj yeem ua tiav. Tsim los ntawm welded H- lossis I- ntu, lossis ntu ntu ntawm lub thawv kev cai, cov girders prefabricated no nqa pem teb thiab lub ru tsev loads, mezzanine pem teb loads thiab luv luv -span choj lawj loads nrog zoo heev cov ntaub ntawv efficiency rau EPC ceev -khiav tej yaam num.
Vim hais tias lub beam yog dawb los tig rau ntawm nws qhov kawg, nws txais siab deflection dua ib pliag -txuas beam tab sis fabricates thiab installs deb tshaj kev lag luam. Peb tsim cov kab hluav taws xob yooj yim thiab girders hauv Q235B, Q355B, S235JR, S355JR, A36 thiab A572 Qib 50 nrog cov txiaj ntsig mus rau 345-355 MPa, welded los ntawm kev siv tsis siv neeg submerged arc vuam rau AWS D1.1 / EN 5} tua blasted {2} thiab EN 109. kub-dip galvanized.
Fabricated Simply Supported Beams Specification
| Feature | Paub meej |
|---|---|
| Khoom siv | Q235B · Q355B · S235JR · S355JR · ASTM A36 · A572 Qib 50 |
| Tshooj Duab | H-Beam · I-Beam · Custom Welded Box Section |
| Hom qauv | Yooj yim Txhawb nqa (Pinned Txuas Txuas Npaj) |
| Span / Loj | Kev cai rau ib daim duab; raug H100-H1000 thiab spans rau qhov project; lub thawv ntawm kev thov |
| Txuj | GB/T 11263 · ASTM A6 · EN 10025 |
| Vuam | Automatic Submerged Arc Vuam (AWS D1.1 / EN 1090) |
| Fabrication kam rau ua | ± 2 hli |
| Kev kho saum npoo | Txhaj tshuaj Blasting Sa2.5, Primer Painting, los yog Kub Dip Galvanizing (Ntau tshaj los yog sib npaug rau 85 μm) |
Engineering Performance Notes
Statically txiav txim siab load txoj kev- pinned ntawm ob qho kawg, lub sij hawm/shear ua raws li yooj yim kaw- daim ntawv ntsuam xyuas rau ib tug tag nrho kwv yees tsim.
Flexural & LTB tsis kam- ntu chav kawm, lub sijhawm tiv thaiv thiab sab nraud -torsional buckling kuaj xyuas rau AISC 360 / EN 1993-1-1.
Shear & web tsim- web shear per AISC G / EN 1993-1-5; stiffeners ntxiv qhov twg web buckling / crippling tswj.
Serviceability deflection- nyob - thauj khoom deflection rau tus lej txwv ntawm qhov sib piv / qhov tob.
Seismic & dynamic teb- tawm los saum toj no ~ 345 MPa nrog ductility, kuaj rau GB 50011.
Cov qauv tsim siv tau- GB 50017 / GB 50011 · AISC 360 · EN 1993-1-1.
Cov yam ntxwv tseem ceeb ntawm Peb Fabricated Yooj Yim Txhawb Beams
Cov khoom siv zoo heev - >3 × pob zeb muaj zog-rau- hnyav; 15-20% cov seem me me, qis hauv paus thiab nqi pej xeem.
Dynamic -load adaptability- tawm los saum toj 345 MPa nrog ductility nyob rau hauv cua / seismic ib GB 50011.
Tag nrho - lub neej tus nqi - modular demountable; >90% recyclable, txiav kev tsim pov tseg ntau tshaj 60%.
Industrialized tsim- ± 2 hli Hoobkas kam rau ua; erection txiav ~ 40% rau EPC ceev- khiav.
Pinned -kev sib txuas kev lag luam- statically txiav txim siab cov pob qij txha yog yooj yim rau fabricate thiab bolt.
Yooj Yim Txhawb Beam vs. Tsau Beam
| Yam | Yooj Yim Txhawb Beam | Tsau Beam |
| Kev sib txuas | Pinned kev twb kev txuas | Moment kev sib txuas |
| Deflection | Nce deflection nyob rau hauv load | Txo deflection nyob rau hauv load |
| Txhim kho | Siab ceev | qis |
| Mechanics | Statically Determinate | Statically Indeterminate |
| Kev lag luam | Tus nqi - zoo rau kev tsim thiab kev teeb tsa. | Cov nqi siab dua vim kev sib koom ua ke & QC. |
| Kev siv | Pem teb theem nrab kab teeb, Warehouse roofs. | Thawj thav duab, High-nce lateral systems. |
Daim ntawv thov ntawm Simply Supported Beam
1. Kev tsim kho choj
Zoo tagnrho rau luv - ncua txuas hniav. Cov qauv zoo li no feem ntau sib sau ua ke nrog kev sib txuas yooj yim txhawb nqa girders los tsim lub hauv paus ruaj khov, muaj peev xwm nqa tsheb thiab cov neeg taug kev.
2. Kev lag luam hauv tsev
Kev txhawb nqa yooj yim girders yog dav siv los txhawb nqa hauv pem teb thiab lub ru tsev ntawm cov tsev nyob, kev lag luam thiab kev lag luam. Lawv kuj raug coj los siv rau cov qauv loj -span xws li warehouses, halls thiab hangars.
3. cranes
Cov girders no pab txhawb cov tswv cuab rau hoisting mechanisms. Raws li kab rov tav Cheebtsam rau crane trolleys, lawv ua kom muaj kev nyab xeeb thiab muaj txiaj ntsig nqa thiab thauj cov khoom thauj.
Ntim & Kev thauj mus los
| Yam khoom | Paub meej |
|---|---|
| Ntim | Anti-xeb zaj duab xis qhwv; flanges / xaus padded los tiv thaiv txheej. |
| Ntev - ncua kev tuav | Spreader + pluaj + ntoo tuav kom tsis txhob khoov; split/field-splice xaiv rau ncua ntev heev. |
| Kho vajtse | Cov phaj, bolts, stiffeners nyob rau hauv cov ntaub ntawv hlau los yog ntoo crates. |
| Kev thauj mus los | Cov hlua hlau + ntoo txhawb nqa hauv cov thawv; FOB/CFR/CIF, tiag tiag- sijhawm taug qab. |
| Docs xa tuaj | Daim ntawv teev npe, daim ntawv them nqi, MTC, vuam / NDT, txheej cov ntaub ntawv, khw / erection kos duab. |
FAQ:
Thaum twg kuv yuav tsum siv lub beam yooj yim es tsis txhob ntawm ib lub sijhawm ruaj khov (lub sijhawm- txuas) beam?
Siv ib qho yooj yim txhawb nqa (tus pin- txuas) beam rau hauv pem teb theem nrab kab teeb, ru tsev warehouse thiab luv -span txuas hniav - statically txiav txim siab, pheej yig dua rau fabricate / nruab, txais ntau deflection. Siv qhov ruaj khov / lub sijhawm- txuas rau thawj thav duab thiab siab -nce lateral systems xav tau txo deflection thiab lub sijhawm txuas ntxiv.
Cov qib steel thiab ntu twg yog muaj, thiab qhov tsim lub zog yog dab tsi?
Q235B, Q355B, S235JR, S355JR, ASTM A36 thiab A572 Qib 50, hauv H-beam, I-beam lossis kev cai welded box seem; tsim tawm mus txog ~ 345-355 MPa nrog zoo ductility.
Yuav ua li cas yog flexural, shear thiab deflection kuj txheeb xyuas?
Kev faib tawm ntu, khoov lub sijhawm tiv thaiv, lateral-torsional buckling (LTB), web shear thiab serviceability deflection raug kuaj xyuas rau AISC 360 lossis EN 1993-1-1, nrog lub web stiffeners qhov twg buckling / crippling tswj; xam muab nrog kos duab.
Dab tsi vuam thiab NDT cov qauv siv?
Automatic submerged arc vuam (SAW) rau AWS D1.1 lossis EN 1090; tag nrho -kev nkag mus thiab qhov tseem ceeb welds UT lossis RT kuaj ntawm kev thov, nrog WPS/PQR thiab daim ntawv pov thawj vuam.
Qhov kev tiv thaiv corrosion thiab lub sij hawm txhuas kuv yuav tsum xav li cas?
Txhaj tshuaj tua kab mob Sa2.5 + primer / xim, los yog kub-dip galvanizing (ISO 1461 / ASTM A123, Ntau dua lossis sib npaug li 85 μm). Lub sij hawm xa tuaj txog 25-45 hnub; ntev kab sib cais los yog xa nrog cov kab sib kis.
Koj puas muab tag nrho cov ntaub ntawv thiab kev soj ntsuam thib peb?
Yog - MTC, vuam / NDT cov ntaub ntawv, txheej cov ntaub ntawv thiab khw / erection kos duab, nrog SGS / BV / TÜV thib peb- tog tshuaj xyuas ntawm kev thov.
