Ubukhulu: 6-40mm
Inqubo: I-Hot Rolled, Ribbed, Rounded, Ingxubevange
I-Rebar igama elijwayelekile lamabha ensimbi aginqike ngezimbambo ezishisayo.Ibanga lensimbi evamile egoqelwe ngokushisayo liqukethe i-HRB kanye nephuzu elincane lokuvunwa lebanga.I-H, R, kanye ne-B i-Hotrolled, Ribbed, kanye namaBars ngokulandelana.
Kunezindlela ezimbili ezivame ukusetshenziswa zokuhlukanisa ze-rebar: eyodwa iwukuhlukanisa ngokuma kwejiyomethri, nokuhlukanisa noma uthayiphe ngokuya ngokuma kwesigaba esiphambanayo sombambo oguquguqukayo kanye nokuhlukana kwezimbambo.Uhlobo II.Lokhu kuhlukaniswa kukhombisa ngokuyinhloko ukusebenza okubambekayo kwe-rebar.Okwesibili kusekelwe ekuhlukaniseni ukusebenza (ibanga), njengezinga lezwe lami lokusebenza lamanje, i-rebar ithi (GB1499.2-2007) intambo ingu-1499.1-2008), ngokuya ngeleveli yamandla (iphuzu lokukhipha/amandla okubamba) I-rebar ithi ihlukaniswe ngamabanga ama-3;ku-Japan Industrial Standard (JI SG3112), i-rebar ihlukaniswe yaba izinhlobo ezi-5 ngokuya ngokusebenza okuphelele;ku-British Standard (BS4461), amamaki ambalwa okuhlolwa kokusebenza kwe-rebar nawo acacisiwe.Ngaphezu kwalokho, ama-rebar angabuye ahlukaniswe ngokuya ngokusetshenziswa kwawo, njengemigoqo yensimbi evamile yokhonkolo oqinisiwe kanye nezinsimbi zensimbi eziphathwa ngokushisa zokhonkolo oqinisiwe oqinisiwe.
Ubukhulu
1) Ibanga lobubanzi obujwayelekile kanye nobubanzi obunconyiwe
Ububanzi obujwayelekile bemigoqo yensimbi busukela ku-6 kuye ku-50mm, kanti amadayamitha ajwayelekile anconyiwe wamabha ensimbi angu-6, 8, 10, 12, 14, 16, 20, 25, 32, 40, kanye no-50mm.
2) Ukuchezuka okuvumelekile komumo ongaphezulu nosayizi webha yensimbi enezimbambo
Izimiso zokuklama zezimbambo eziphambanayo zemigoqo yensimbi enezimbambo zizohlangabezana nalezi zidingo ezilandelayo:
I-engeli engu-β phakathi kombambo ovundlayo kanye ne-eksisi yebha yensimbi akufanele ibe ngaphansi kwamadigri angu-45.Uma i-engeli efakiwe ingekho ngaphezu kwamadigri angu-70, isiqondiso sezimbambo eziphambene ezinhlangothini eziphambene zebha yensimbi kufanele zihluke;
Isikhala esilinganiselwe esingu-l sezimbambo eziphambene akufanele sibe sikhulu kunezikhathi ezingu-0.7 zobukhulu obujwayelekile bebha yensimbi;
I-engeli engu-α phakathi kohlangothi lwembambo eguquguqukayo kanye nobuso bebha yensimbi akufanele ibe ngaphansi kwamadigri angu-45;
Isamba sezikhala (kuhlanganise nobubanzi bezimbambo ze-longitudinal) phakathi kwamaphethelo ezimbambo eziphambene ezinhlangothini ezimbili eziseduze zebha yensimbi akufanele sibe sikhulu kunama-20% we-perimeter yegama lensimbi yensimbi;
Lapho ububanzi obujwayelekile bensimbi yensimbi bungekho ngaphezu kwe-12mm, indawo yombambo ohlobene akufanele ibe ngaphansi kuka-0.055;lapho ububanzi obujwayelekile bungu-14mm no-16mm, indawo yombambo ohlobene akufanele ibe ngaphansi kuka-0.060;lapho ububanzi bokuzisholo bungaphezu kuka-16mm, indawo yombambo ohlobene akufanele ibe ngaphansi kuka-0.065.Bheka ku-Appendix C ukuze ubale indawo yombambo ohlobene.
Imigoqo yensimbi enezimbambo ngokuvamile inezimbambo ze-longitudinal, kodwa futhi ngaphandle kwezimbambo ze-longitudinal;
3) Ubude nokuchezuka okuvumelekile
a.Ubude
Izinsimbi zensimbi ngokuvamile zilethwa ngobude obunqunyiwe, futhi ubude obuthile bokulethwa kufanele buboniswe kunkontileka;
Imigoqo yokuqinisa ingalethwa ngamakhoyili, futhi ireli ngayinye kufanele ibe i-rebar eyodwa, okuvumela u-5% yenani lamareli kubhetshi ngayinye (amareli amabili uma engaphansi kwamabili) ahlanganisa ama-rebar amabili.Isisindo sediski nobubanzi bediski kunqunywa ngokuxoxisana phakathi komphakeli nomthengi.
b, ukubekezelela ubude
Ukuchezuka okuvunyelwe kobude bebha yensimbi uma ilethwa kubude obunqunyiwe akumele kube kukhulu kuno-±25mm;
Uma ubude obuncane budingeka, ukuphambuka kwawo kungu-+50mm;
Lapho ubude obukhulu budingeka, ukuchezuka kungu-50mm.
c, ukugoba neziphetho
Ukuphela kwebha yensimbi kufanele kugundwe ngokuqondile, futhi ukuguqulwa kwendawo akufanele kuthinte ukusetshenziswa
Isikhathi sokuthumela: Jun-01-2022