Khoom npe
Rebar (txoj kev txhawb kev hlau bar / vaj tse Reactage bar)
1. Cov ntsiab lus
Rebar, tseem hu uapavement txhawb hlau, yog daim ntawv tshwj xeeb ntawm rebar tsim los txhawb nqaCov pavy qhob, txoj kev loj, cov kev sib tw, thiab lub hauv pausCov. Nws lub hom phiaj tseem ceeb yogTswj cracking, Txhim Kho Load hloov, thiabtxuas txoj kev taug kev lifespanLos ntawm kev txhim kho lub tensile thiab flexural muaj peev xwm ntawm txoj kev ua pob zeb ua hauv qab cov chaw thau khoom hauv tsheb.
Tsis zoo li Dav Dav - lub hom phiaj tsim kev tsim nyog, kev rebar yuav tsum tu siabHigh cyclic loads, Kub - induced kev nyuaj siab, thiab ib puag ncig corrosionCov. Nws yog engineered rau superiorQeeb zog tsis kam, kev ua siab loj, thiabkev ua tau zoo, kom tau ntev - lub sij hawm ruaj khov thiab kev nyab xeeb ntawm kev thauj khoom.
2. Cov qauv thiab cov qhab nia sib npaug
| Lub hom phiaj | Xws li qib | Yield zog (mpa) | Ntawv thov |
|---|---|---|---|
| Tuam Tshoj (GB / T 1499.2) | HRB400E / HRBF500E | 400–500 | High - Ductility Ribbed tuav rau txoj kev thiab cov qauv kev pavem |
| Tebchaws Asmeskas (ASTM A706 / A615) | Qib 60 / Qib 75 | 420–520 | Rau txoj kev loj, choj lawj, thiab cov slabs precast |
| Teb chaws Europe (EN 10080) | B500B / B500C | 500 | Siab Muaj Zog Thiab Veldability |
| Is Nrias teb (yog 1786) | FE500D / FE550D | 500–550 | Ductility siab rau kev tswj kev ntxhov siab |
| Nyiv (JIS G3112) | SD390 / sd490 | 390–490 | Kev txhawb nqa rau txoj kev thiab cov tunnels |
Hauv feem ntau cov ntawv thov, rebars yog ib qhoQib III (HRB400)lossisQib IV (HRB500)Rau kev ua lub zog zoo thiab lub zog.
3. Cov Khoom Siv Thiab Cov Neeg Kho Mob
| Ntiag tug | Cov Khoom Nquag Yog | Kev piav txog |
|---|---|---|
| Khoom | Kub - rolled low -}} alloy carbon hlau | Optimized rau lub zog thiab ductility |
| Yield zog (FY) | 400-550 MPa | Muab load tsis kam thiab chaw tswj |
| Tensile lub zog (fu) | 550-650 MPa | Ua kom muaj ntev - termil tsis ruaj khov |
| Elongation (Δ5) | Ntau dua los yog sib npaug rau 14% | Tso cai rau kev ntxhov siab thiab khoov |
| Elastic Modulus (e) | Tom ntej no 200 GPA | Ua kom nruj ruaj ruaj nyob hauv qab log logs |
| Qaug zog muaj zog | Siab | Tsim rau Rov Ua Dua Tshiab Zog |
| Bond lub zog | Zoo tshaj | Demormed saum toj ntseeg tau tuav nrog kev ua vaj tse ntxig |
| Weldability (CE) | Tsawg dua los yog sib npaug rau 0.45 | Haum rau welded meshes thiab txoj kev tawb |
4. Kev tsim khoom thiab hom
Rebars yog tsim kev sivkub -} rolled, Thermomechanically kho (TMT), lossisMicroalloyed Hlaucov txheej txheem rau kev ua haujlwm siab tshaj plaws.
Hom Hom muaj xws li:
Deformed tuav:Lub ntsiab kev txhawb nqa ntawm txoj kev slabs, pob qij txha, thiab lub hauv paus.
Cov kab sib txuas dawb:Siv los ua cov npe dowel rau thauj khoom hloov chaw sib hloov ntawm cov pob qij txha.
Epoxy - coated los yog galvanized rebars:Siv nyob rau hauv ntub dej lossis de - iching ntsev ib puag ncig.
Welded Hlau Mesh (WWM):Prefabricated rearter lub zog rau cov ntu txuas ntxiv.
5. Qhov ntev thiab khoom siv
| Inch (hli) | Nyhav (kg / m) | Raug |
|---|---|---|
| 8 | 0.395 | Lub teeb Mesh Qhov Cuab, txoj kev taug ko taw |
| 10 | 0.617 | PEM pav ke saum npoo txheej |
| 12 | 0.888 | PAST SLABs, TIVNELELS |
| 16 | 1.578 | Choj mus kom ze Slabs, cov kev hnyav |
| 20 | 2.466 | Cov pav uas muaj kev lag luam, txuas ntxiv |
| 25 | 3.854 | Txoj Kev Loj SLabs, thauj khoom {- cov kab ke |
Ntev:6 m / 9 m / 12 m txheem, lossis kev cai txiav ntev
Daim Ntawv:Ncaj ncaj lossis coils rau mesh fabrication
Nto:Ribbed (Deformed) rau lub zog ua kom lub zog
6. Cov ntsiab lus tseem ceeb
✅ Qaum Tswj:Tsawg tsawg thiab kub thiab shrinkage tawg rau hauv cov pavements.
✅ Thauj khoom hloov efficiency:Txhim kho kev thauj khoom thoob plaws hauv cov pob qij txha.
✅ High Fatue Resistance:Withstands tsheej lab ntawm log load mus ncig.
✅ Corrosion Refantance Cov kev xaiv:Muaj nyob hauv galvanized lossis epoxy -} coated cov ntawv.
✅ Txhim Kho Durability:Txuas ntxiv cov kev pabcuam lub neej ntawm cov kev, kev loj, thiab cov kev sib tw.
✅ Nchuav kev xaiv cov kev xaiv:Tau tshaj meshes, dowels, los yog txuas ntxiv rebars.
7. Cov ntawv thov raug
Kev Loj thiab Kev Sib Koom Tes Hluav Taws Xob
Tshav Dav Hlau khiav thiab tsheb tavxisways
Nroog Nroog thiab Coalasses
Ntau thiab underpasses
Choj mus txog thiab cov abutment aav
Kev lag luam pem teb thiab hnyav - tsheb khiav
Chaw nres tsheb thiab txoj kev pabcuam
Nyob rau hauv rigid hument tsim,Rebaryog qhov tseem ceeb kom txo cov slab curling, tawg, thiab ua ke deormation.
8. Txuas Txheej Txheem Ua piv txwv Piv txwv
Longitudinal Qhov Zog:Kev tswj cov shrinkage thiab qhov kub nyhiab.
Transverse txhawb ntxiv:Txhawb nqa kev txwv tsis pub thiab thauj khoom hloov chaw.
Dowel tuav:Nruab rau ntawm pob qij txha hloov pauv hloov.
Khi khi:Tiv thaiv kom tsis txhob sib cais ntawm cov pob qij txha ntev.
Mesh Qhov Cuab Lub Zog:Prefabricated steel mats rau txawm faib kev ntxhov siab.
9. Txheej thiab Kev Xaiv Tiv Thaiv
| Ntaus | Kev piav txog | Pom zoo siv |
|---|---|---|
| Kub - dip galvanized rebar | Zinc Txheej (Z180-Z275) tiv thaiv corrosion | Ntug dej hiav txwv lossis huab cua huab cua |
| Epoxy Coated Rebar (ASTM A775) | Fusion - bined epoxy rau anti -} chloride tiv thaiv | Txoj kev loj thiab cov choj siv cov de - i} icing ntsev |
| Zinc -} aluminium alloy (Galfan) | Txhim kho corrosion tsis kam thiab adcesion | Ntev - Lub Neej Tuag |
| Stainless rebar | Kev tiv thaiv corrosion thiab lub neej | Cov Tolnels, Marine Roads, Siab -} tu cov aav |
10. Fabrication thiab installation
Dabtsi yog khoov:Siv cov tshuab puas pom zoo, ua kom muaj ntau dua lossis sib npaug nrog 5 × bar txoj kab uas ua hauj lwm lub vojvoog.
Vuam:Tso cai rau tsawg - rawm cov qib veadable (piv txwv li, hrb500e, Astm A706).
Kev tso kawm:Saib xyuas cov kaus mom yuav tsum tau (ntau dua los yog sib npaug rau 50 hli rau kev txiav txim siab) los tiv thaiv corrosion.
Anchorage:Ua raws li cov cai - ruag lap ntev thiab sib koom tes rau cov hlau kub.
Cia:Khaws cov rebars qhuav, tsa, thiab deb ntawm cov tshuaj ntsuab lossis cov tshuaj ntsev.
11. Tswjhwm thiab tshuaj xyuas
Rebrar yuav tsum tau pov thawj kom nruj rau kev ua kom muaj zog thiab xeb kev ua haujlwm:
Kev ntsuam xyuas txhua yam:Tensile, tawm los, elongation, thiab khoov xeem.
Qaug zog kuaj:Cyclic chaw thau khoom simulation rau cov kev pabcuam ntawm kev.
Tshuaj Ntsuam Xyuas Tshuaj:Txheeb xyuas cov pa roj carbon sib npaug (Ce tsawg dua lossis sib npaug rau 0.45).
Txheej Txheem Txheej Txheem:Thickness, adhesion, thiab ntsev {- tsuag tsuag.
Qhov Tseeb Docensional:Txheeb xyuas txoj kab thiab tav geometry rau kev sib txuas ua ke.
Mill xeem Daim Ntawv Pov Thawj (MTC):Muab nrog txhua pob.
12. Kev Sib Piv: Txoj Kev Rebar thiab Rebar
| Yam zoo | Lub tsev rebar | Rebar |
|---|---|---|
| Paib lub zog | 300-400 MPa | 400-550 MPa |
| Qeeb zog tsis kam | Tswj kav | Siab |
| Corrosion Kuj | Yam ua tau | Tseem ceeb |
| Kev ua siab loj | Tswj kav | Txhim kho rau kev thauj khoom |
| Cov Txheej Txheem Txheej Txheem | Tsis muaj | Epoxy / Galvanized |
| Raug | Beams, Txhua | Paver, Tolnels, Txoj Kev |
13. Ntim thiab xa khoom
Bundles:1-3 tons ib pob, ruaj nrog steel straps.
Khij:Suav nrog qib kawm, txoj kab uas hla, cua sov, thiab tus qauv.
Pob:Seaworthy thiab noo noo - eam paus ua pov thawj rau kev xa tawm.
Kev Xa Khoom:Ncaj ncaj (6-12 m) lossis coiled cov ntawv rau Mesh tsim.
14. Cov Qauv thiab Codes rau kev ua haujlwm
GB / T 1499.2-2018:Kub - ribbed cov ceg rau qhov cuab lub zog.
ASTM A706 / A775:Weldable thiab epoxy - coated deated deformed deformed.
Aashto lrfd:Choj thiab txoj kev tsim qauv tsim rau Rebar Layout.
EN 10080:Cov txheej txheem European rau kev ua pob zeb ua kom lub zog.
Yog 1786:Indian tus qauv rau high - ductility rebars.
Aci 330R & Aci 360r:American cov qauv rau kev pavement thiab slab ntxiv tsim qauv.
15. Ntsiab lus
Rebaryog ahigh -} kev txhawb nqa lub zogEngineeded rau txoj kev thiab cov txheej txheem pavem tau nthuav tawm cov tsheb txuas ntxiv mus, ib puag ncig corrosion, thiab ntsuas kub. Nwssiab lub zog, zoo dua dovility, thiab nkees tsis kamua rau nws tsis tseem ceeb rauLub zog ruaj khov, kev ua kom ntau, txuas hniav, thiab cov pav nplaum.
Nrog rau cov muaj ntawmgalvanized thiab epoxy -} coated sib txawv, txoj kev rebar kom ntseeg tauntev -} kav lub neej, Txo cov nqi txij nkawm, thiabtxhim kho kev nyab xeebRau txhua lub tshuab thauj khoom niaj hnub.
Koj puas xav kom kuv tsim a"Txoj kev rebar cov ntaub ntawv tshwj xeeb"Tom ntej no - Sau cov npe cov khoom siv mechanical tshuab, thiab cov qauv ntawm cov khoom lag luam kom tsim nyog rau cov khoom lag luam lossis cov nplooj ntawv xa tawm?
Cim npe nrov: Rebar, Tuam Tshoj txoj kev Rebar tuam ntxhab, cov chaw muag khoom, Hoobkas
