Txheej txheem cej luam ntawm rebar
Rebar yog feem ntau hu ua kub dov ribbed bar. Cov qib ntawm dog dig kub dov steel bar muaj cov txiaj ntsig tsawg kawg ntawm HRB thiab qib kawm. H, R thiab B yog thawj tus ntawv ntawm kub dov, ribbed thiab tuav feem. Rebar tuaj yeem faib ua peb pawg raws li lub zog: HRB300e, HRB400E, HRB500E, thiab lwm yam.
Cov xov cov xov xwm ntau ntawm rebar yog feem ntau 6-50mm. Peb feem ntau koom nrog ntau dua yog 8 hli, 10mm, 14 hli, 18mm, 25mm, 25mm, 25mm, 40 hli, 40 hli thiab lwm yam. Kev pub rau lub teb chaws muaj kev ywj pheej: 6-12 hli sib txawv hauv ± 7%, 14-20mm sib txawv hauv ± 5%, 22-50mm sib txawv hauv ± 4%. Feem ntau, ruaj ruaj ntawm rebar yog 9m thiab 12m, ntawm 9m ntev xov yog siv rau kev siv kev tsim kho ib txwm siv rau kev tsim kho choj.
Cov lus qhia tshwj xeeb ntawm rebar
| Khoom npe | Kev Tsim Kho Lub Tswv Yim Qhov Txheej Txheem Hlau Rebar Discarist Hlau Bar |
| Khoom | HRB335, HRB400, HRB500, JIS SD390, SD490, SD400; GR300,420,520; ASTM A615 GR60; BS4449 GR 460, GR500 |
| Teem nqi | HRB400 / HRB500 / KSD3504 SD400 / KSD3504 SD500 / ASTM A615, Gr40 / Astm Gr60 / BS4449 B500B / BS4449 B460 thiab lwm yam. |
| Tiav tiav lawm | Ntsia hlau-xov, epoxy txheej, galvanized txheej |
| Cov txheej txheem ntau lawm | Rebar yog cov hlau bar nrog ribbed nto, tseem hu ua Ribbed qhov cuab yeej lub zog, feem ntau nrog 2 txoj kev hloov pauv ntawm cov kev faib. Cov duab ntawm transverse pob yog kauv duab, herringbone duab thiab tawv nqaij tawv. Nyob rau hauv cov nqe lus ntawm millimetres ntawm nominal lub taub. Lub nominal txoj kab ntawm ribbed requears yog sib npaug zos rau lub cheeb ntawm lub teeb lub zog ntawm lub teeb lub zog txuas ntxiv nrog tib tus neeg hla kev. The nominal diameter of the steel bar is 8-50 mm, and the recommended diameter is 8, 12, 16, 20, 25, 32 and 40 mm.Ribbed bars mainly bear tensile stress in concrete. Ribbed steel bar tuaj yeem dais qhov kev txiav txim ntawm kev quab yuam sab nraud zoo dua vim tias muaj cov nyhuv ntawm pob zeb thiab pob zeb. Ribbed cov tuav tau siv dav hauv ntau lub tsev qauv, tshwj xeeb tshaj yog loj, hnyav, lub teeb yuag thiab cov tsev siab. |
| Qauv No. | GB1499.1 ~ GB1499.3 (rebar rau pob zeb); JIS G3112 - 87 (98) (Bar Hlau rau Kev Pab Cuam Tshuam); Jisg3191 - 66 (94 (94 (94 (64 (94 (qhov loj me, qhov hnyav, qhov hnyav thiab kev ua haujlwm ntawm kub-rolled bar thiab dov bar hlau); BS449-97 (kub dov steel bars rau cov vaj tse ua vaj tse). AVTM A615 Qib 40, Qib 60, Qib Kawm Ntawv; ASTM A706; DIN488-1 420S/500S, BST500S,NFA 35016 FE E 400, FE E 500 ,CA 50/60,GOST A3 R A500C |
| Lub hom phiaj | GB: HRB400 HRB400E HRB500 USA: ASTM A615 GR40, GR60 UK: BS4449 gri60 |
| Kev kuaj xyuas Txojkev | Tensile Testing (1) Tensile Xeem Txuj Ci: GB / T228.1-2010, JISZ2201, о s370, о с с 14 с 14, thiab lwm yam; (2) Dabtsi yog khoov hom phiaj: feem ntau siv cov qauv kev sim gb / T232-88, YB / T5126-2003, ASTME290, ROCT1409, thiab lwm yam. |
| Daim ntawv thov | Rebar tau siv dav hauv tsev, choj, kev thiab lwm txoj kev tsim kho pej xeem. Los ntawm txoj kev loj, kev tsheb ciav hlau, culvert, qhov chaw, dej nyab, rau lwm cov ntaub ntawv hauv pej xeem, cov hlau nplaum, cov hlau muag hlau yog cov khoom siv tsis tau. Nrog rau qhov tob ntawm Tuam Tshoj lub nroog, kev thov kom rebar yog muaj zog rau cov cuab yeej tsim kho vaj tse thiab kev txhim kho av. |
Ntau qhov ntau thiab tsawg ntawm rebar
| Qhov loj me (hli) | Lub hauv paus uas hla (hli) | Transverse tav qhov siab (hli) | Ntev tav uas qhov siab (hli) | Transverse tav sib zog (hli) | Chav phaus (kg / m) |
| 6 | 5.8 ± 0.3 | 0.6 ± 0.3 | I≤0.8 | 4 ± 0.5 | 0.222 |
| 8 | 7.7 ± 0.4 | 0.8 ± 0.3 | ≤1.1 | 5.5 ± 0.5 | 0.395 |
| 10 | 9.6 ± 0.4 | 1 ± 0.4 | ≤1.3 | 7 ± 0.5 | 0.617 |
| 12 | 11.5 ± 0.4 | 1.2 ± 0.4 | I≤1.6 | 8 ± 0.5 | 0.888 |
| 14 | 13.4 ± 0.4 | 1.4 ± 0.4 | I≤1.8 | 9 ± 0.5 | 1.21 |
| 16 | 15.4 ± 0.4 | 1.5 ± 0.5 | ≤1.9 | 10 ± 0.5 | 1.58 |
| 18 | 17.3 ± 0.4 | 1.6 ± 0.5 | ≤2 | 10 ± 0.5 | 2.00 |
| 20 | 19.3 ± 0.5 | 1.7 ± 0.5 | ≤2.1 | 10 ± 0.8 | 2.47 |
| 22 | 21.3 ± 0.5 | 1.9 ± 0.6 | I≤2.4 | 10.5 ± 0.8 | 2.98 |
| 25 | 24.2 ± 0.5 | 2.1 ± 0.6 | ≤2.6 | 12.5 ± 0.8 | 3.85 |
| 28 | 27.2 ± 0.6 | 2.2 ± 0.6 | ≤2.7 | 12.5 ± 1.0 | 4.83 |
| 32 | 31 ± 0.6 | 2.4 ± 0.7 | ≤3 | 14 ± 1.0 | 6.31 |
| 36 | 35 ± 0.6 | 2.6 ± 0.8 | ≤3.2 | 15 ± 1.0 | 7.99 |
