Rebar Hrb355 Hrb400 Hrb500 8mm 10mm 12mm 14mm 16mm Pākuʻi lāʻau ʻaʻe
hoʻokaʻawale
Hoʻokaʻawale ʻia ka pahu kila liʻiliʻi wela i ʻekolu mau māka: HRB335 (ʻo 20MnSi ka papa kahiko), ʻekolu HRB400 (ʻo 20MnSiV ka papa kahiko, 20MnSiNb, 20Mnti), a me ka papa ʻehā HRB500.
ʻElua mau ʻano hoʻohālikelike maʻamau no ka hoʻoikaika ʻana i nā pahu:ʻo kekahi e hoʻokaʻawale e like me ke ʻano geometric, a ʻo kekahi e hoʻokaʻawale a hoʻokaʻawale paha e like me ke ʻano kea o nā kīʻaha transverse a me ke kaawale o nā kaola.ʻAno II. Hōʻike nui kēia hoʻohālikelike i ka hana clamping o ka hoʻoikaika.
ʻO ka lua e like me ka hoʻohālikelike hana (grade), e like me ke kūlana hoʻokō o kēia manawa ma koʻu ʻāina, ʻo ka rebar (GB1499.2-2007) ka uea ʻo 1499.1-2008), a ua māhele ʻia ka rebar i 3 e like me ka pae ikaika (helu hua / ikaika tensile).Papa;ma Japanese Industrial Standard (JI SG3112), ua māhele ʻia nā pahu kila i 5 mau ʻāpana e like me kā lākou mau waiwai piha;ma British Standard (BS4461), ua kuhikuhi pū ʻia kekahi mau māka o nā hoʻokolohua hoʻokō ʻana i ka pahu kila.Eia kekahi, hiki ke hoʻokaʻawale ʻia nā pahu kila ma o ka hoʻohana ʻana, e like me nā pahu kila maʻamau no ka hoʻoikaika ʻana i ka paʻa a me nā pahu kila i hoʻomaʻamaʻa ʻia i ka wela no ka mea i hoʻoikaika ʻia.
hiʻohiʻona
1) ʻO ke anawaena inoa inoa a me ke anawaena i manaʻo ʻia
ʻO ke anawaena nominal o nā pahu kila mai ka 6 a 50mm, a ʻo ka maʻamau i ʻōlelo ʻia nominal diameters o nā pahu kila he 6, 8, 10, 12, 14, 16, 20, 25, 32, 40, a me 50mm.
2) ʻO ka ʻae ʻia ʻana o ke ʻano o ka ʻili a me ka nui o ka pahu kila ribbed
Pono nā loina hoʻolālā o nā pahu kila ribbed i kēia mau koi:
ʻAʻole pono e emi ka huina β ma waena o ka ʻaoʻao ʻaoʻao a me ke koʻi hao kila ma lalo o 45 degere.Inā ʻaʻole i ʻoi aku ka nui o ka huina i hoʻohui ʻia ma mua o 70 degere, pono e kūʻē ke kuhikuhi o nā kaola transverse ma nā ʻaoʻao ʻelua o ka pahu kila;
ʻAʻole pono e ʻoi aku ka nui o ke anawaena inoa o nā kaola ma mua o 0.7 manawa o ke anawaena inoa o nā kaola;
ʻAʻole emi ka huina α ma waena o ka ʻaoʻao o ka ʻaoʻao ʻaoʻao a me ka ʻili o ka pahu kila ma lalo o 45 degere;
ʻO ka huina o nā āpau (me ka laula o nā iwiʻaoʻao longitudinal) ma nā wēlau o nā ʻaoʻao ʻaoʻao ma nā ʻaoʻao ʻelua e pili ana i ka pahu kila, ʻaʻole ia e ʻoi aku ma mua o 20% o ka palena inoa o ka pahu kila;
Inā ʻaʻole ʻoi aku ka nui o ke anawaena inoa o ka pahu kila ma mua o 12mm, ʻaʻole pono e emi iho ka ʻāpana iwi ʻaoʻao ma mua o 0.055;inā ʻo 14mm a me 16mm ka anawaena inoa, ʻaʻole pono e emi iho ka ʻāpana iwi ʻaoʻao ma mua o 0.060;inā ʻoi aku ka nui o ke anawaena ma mua o 16mm, ʻaʻole pono e emi ka ʻāpana iwi ʻaoʻao ma mua o 0.065.E nānā i ka Pākuʻi C no ka helu ʻana i ka ʻāpana iwi aoao pili.
He mau kaola lōʻihi ka lōʻihi o nā lāʻau hao liʻiliʻi, a he mau kī kī ʻole ka lōʻihi;
3) ʻO ka lōʻihi a me ka ʻae ʻia ʻana ka haʻalele ʻana
ʻekahi.lōʻihi
Hāʻawi pinepine ʻia nā pahu kila i nā lōʻihi paʻa, a pono e hōʻike ʻia ka lōʻihi o ka lawe ʻana ma ka ʻaelike;
Hiki ke hāʻawi ʻia nā pahu kila ma nā ʻōwili, ʻo kēlā me kēia ʻōwili e hoʻokahi pahu kila, a ʻo 5% o ka helu o nā ʻōwili i kēlā me kēia pūʻulu (ʻoi aku ka liʻiliʻi o ʻelua ʻōwili ʻelua ʻōwili) ʻelua mau pahu kila.Hoʻoholo ʻia ke kaumaha disk a me ke anawaena disk ma o ke kūkākūkā ʻana ma waena o ka mea hoʻolako a me ka mea kūʻai aku.
b.Hoʻomanawanui lōʻihi
Ke hāʻawiʻia ka lōʻihi paʻa,ʻaʻole iʻoi aku ka lōʻihi o ka lōʻihi o ka lōʻihi o ke kila ma mua o ± 25mm;
Ke koi ʻia ka lōʻihi liʻiliʻi, ʻo ka deviation +50mm;
Ke koi ʻia ka lōʻihi kiʻekiʻe, ʻo ka deviation -50mm.
c.Curvature a me ka hopena
Pono e ʻoki pololei ʻia ka hopena o ka pahu kila, a ʻaʻole e pili ka deformation kūloko i ka hoʻohana
hōʻike kiʻi
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