Txheej txheem cej luam ntawm Rebar
Rebar feem ntau hu ua kub dov ribbed bar. Qib zoo tib yam kub dov steel bar muaj qhov tsawg kawg nkaus yield point ntawm HRB thiab qib. H, R thiab B yog thawj tsab ntawv ntawm kub dov, Ribbed thiab Bars feem. Rebar tuaj yeem muab faib ua peb pawg raws li lub zog: HRB300E, HRB400E, HRB500E, HRB600E, thiab lwm yam.
Cov xov specification ntau ntawm rebar feem ntau yog 6-50mm. Peb feem ntau koom nrog ntau dua yog 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 32mm, 36mm, 40mm thiab lwm yam. Lub teb chaws tso cai sib txawv: 6-12mm sib txawv hauv ± 7%, 14-20mm sib txawv hauv ± 5%, 22-50mm sib txawv hauv ± 4%. Feem ntau, qhov ntev ntawm rebar yog 9m thiab 12m, ntawm cov uas 9m ntev xov yog tsuas yog siv rau ib txwm kev tsim kho thiab 12m ntev xov yog tsuas yog siv rau kev tsim kho choj.
Specification ntawm Rebar
| Khoom npe | Kev Siv Lub Tsev Khoom Siv Khoom Siv Hlau Rebar Deformed Steel Bar |
| Khoom siv | HRB335, HRB400, HRB500, JIS SD390, SD490, SD400; 300, 420,520, ASTM A615 GR60, BS4449 GR460, GR500 |
| Qib | HRB400 / HRB500 / KSD3504 SD400 / KSD3504 SD500 / ASTM A615, GR40 / ASTM GR60 / BS4449 B500B / BS4449 B460 thiab lwm yam. |
| Nto tiav | Ntsia Hlau-xov, Epoxy txheej, Galvanized txheej |
| Txheej txheem ntau lawm | Rebar yog steel bar nrog ribbed nto, tseem hu ua ribbed reinforcement, feem ntau nrog 2 longitudinal tav thiab ib tug transverse tav tusyees faib raws qhov ntev kev taw qhia. Cov duab ntawm transverse tav yog kauv puab, herringbone puab thiab crescent puab. Nyob rau hauv cov nqe lus ntawm millimeters nominal txoj kab uas hla. Lub nominal txoj kab uas hla ntawm ribbed reinforcement yog sib npaug rau lub nominal txoj kab uas hla ntawm lub teeb-round reinforcement nrog tib cross-section. Lub nominal txoj kab uas hla ntawm steel bar yog 8-50 hli, thiab qhov pom zoo txoj kab uas hla yog 8, 12, 16, 20, 25, 32 thiab 40 mm.Ribbed tuav mas dais tensile kev nyuaj siab nyob rau hauv qhob. Lub ribbed steel bar tuaj yeem dais qhov kev txiav txim ntawm sab nraud quab yuam zoo dua vim tias cov nyhuv ntawm ribbed thiab pob zeb. Ribbed tuav yog dav siv nyob rau hauv ntau lub tsev tsim, tshwj xeeb tshaj yog loj, hnyav, lub teeb nyias-walled thiab siab vaj tse. |
| Txuj No. | GB1499.1 ~ GB1499.3 (rebar rau pob zeb); JIS G3112 - 87 (98) (bar steel rau cov pob zeb muaj zog); JISG3191 - 66 (94) (zoo li, qhov loj me, qhov hnyav thiab qhov sib txawv ntawm qhov kub-dov bar thiab dov bar steel); BS4449-97 (kub dov steel tuav rau pob zeb ua qauv). ASTM A615 Qib 40, Qeb 60, Qeb 75; ASTM A706; DIN488-1 420S/500S, BST500S, NFA 35016 FE E 400, FE E 500, CA 50/60, GOST A3 R A500C |
| Txuj | GB: HRB400 HRB400E HRB500 Teb chaws USA: ASTM A615 GR40, GR60 UK: BS 4449 GR 460 TSI |
| Kev tshuaj xyuas Cov txheej txheem | Tensile xeem (1) Tensile xeem txoj kev: GB / T228.1-2010, JISZ2201, JI SZ2241, ASTMA370, Г О С Т 1497, BS18, thiab lwm yam; (2) Bending test method: feem ntau siv cov qauv kev xeem muaj GB / T232-88, YB / T5126-2003, JISZ2248, ASTME290, ROCT14019, thiab lwm yam. |
| Daim ntawv thov | Rebar yog dav siv nyob rau hauv lub tsev, choj, txoj kev thiab lwm yam civil engineering siv. Los ntawm txoj kev loj, railway, choj, culvert, tunnel, kev tswj dej nyab, pas dej ua ke thiab lwm qhov chaw pej xeem, mus rau lub hauv paus tsev, kab teeb, kab, phab ntsa, daim hlau, ntsia hlau hlau yog cov khoom siv tsis tau. Nrog rau qhov tob ntawm Tuam Tshoj txoj kev loj hlob hauv nroog, qhov kev thov rau rebar muaj zog rau kev tsim kho vaj tse thiab kev loj hlob ntawm vaj tse. |
Common Sizes ntawm Rebar
| Loj (mm) | Base Txoj kab uas hla (mm) | Transverse Rib Qhov siab (mm) | Longitudinal Rib Qhov siab (mm) | Transverse Rib Spacing (mm) | Qhov hnyav (kg / m) |
| 6 | 5.8 ± 0.3 | 0.6 ± 0.3 | ≤ 0.8 | 4 ± 0.5 | 0.222 ib |
| 8 | 7.7 ± 0.4 | 0.8 ± 0.3 | ≤1.1 | 5.5 ± 0.5 | 0.395 ib |
| 10 | 9.6 ± 0.4 | 1 ± 0.4 | ≤1.3 | 7 ± 0.5 hli | 0.617 ib |
| 12 | 11.5 ± 0.4 | 1.2 ± 0.4 | ≤1.6 | 8 ± 0.5 | 0.888 ib |
| 14 | 13.4 ± 0.4 | 1.4 ± 0.4 | ≤1.8 | 9 ± 0.5 hli | 1.21 |
| 16 | 15.4 ± 0.4 | 1.5 ± 0.5 | ≤1.9 | 10 ± 0.5 | 1.58 ib |
| 18 | 17.3 ± 0.4 | 1.6 ± 0.5 | ≤ 2 | 10 ± 0.5 | 2.00 Nws |
| 20 | 19.3 ± 0.5 | 1.7 ± 0.5 | ≤ 2.1 | 10 ± 0.8 hli | 2.47 ib |
| 22 | 21.3 ± 0.5 | 1.9 ± 0.6 | ≤ 2.4 | 10.5 ± 0.8 | 2.98 ib |
| 25 | 24.2 ± 0.5 | 2.1 ± 0.6 | ≤ 2.6 | 12.5 ± 0.8 | 3.85 ib |
| 28 | 27.2 ± 0.6 | 2.2 ± 0.6 | ≤ 2.7 | 12.5 ± 1.0 | 4.83 ib |
| 32 | 31 ± 0.6 | 2.4 ± 0.7 | ≤ 3 | 14 ± 1.0 | 6.31 Nws |
| 36 | 35 ± 0.6 | 2.6 ± 0.8 | ≤3.2 | 15 ± 1.0 | 7.99 ib |
