Ngā Pūrongo - Ngā Whakamārama mō ngā Tau me ngā Rahi o te Rebar

He Aratohu Whaihua mō ngā Tohunga Hoko me te Hanga Rino

Te kounga orino rinohe pānga nui tēnei ki ngā hanganga raima whakapakari, tae atu ki te haumaru o te hanganga, te whaihua o te hanganga, me ngā utu rauemi.

Mō ngā kaihoko maitai, ngā kaimahi kirimana, me ngā kaihangarau, te māramatangarino waroHe mea tino nui ngā māka, ngā paerewa rahi, me ngā tikanga tākai i raro i ngā paerewa hokohoko me te whakatinanatanga kaupapa rerekē o te mākete me te ao.

Ko te whāinga o tēnei tuhinga he whakarato i tētahi tirohanga poto, ngaio hoki mō ngā paerewa rebar o te ao, e kapi ana i te nuinga o te wāNgā paerewa Hainamana (GB), Ūropi (EN), me Amerika (ASTM).

Ngā Māka Rebar e Pā Ana ki te Kaha me te Paerewa Hua

He rerekē ngā tohu o te maitai whakakaha i runga i te kaha tukua iti rawa, ā, ka whakawhirinaki te ingoa tohu ki ngā paerewa e tika ana, ā, he rerekē hoki i ia rohe, i ia rohe.

Paerewa Haina –GB 50010 /GB1499.2
Ko ngā momo rebar rara wera e whakamahia whānuitia ana i Haina koia ēnei:
HRB335 Rīpene Rino
Te kaha whakaputa iti rawa: 335 MPa
Mō ngā mahi raima whakapakari noa.
HRB400Ste reera tīra
Te kaha whakaputa iti rawa: 400 MPa
Ngā tono Whare Noho, Arumoni me ngā Hanganga Ko ngā mea tino noa.
HRB500 Rino Rino
Te kaha whakaputa iti rawa: 500 MPa
He pai mō ngā whare taumaha, nunui me ngā whare teitei
Te Whakamāramatanga o te Taumata:
HRB = Pae Ripi Wera Hurihia
Ko te tau e tohu ana i te kaha whakaputa iti rawa (MPa).

Paerewa Pākehā – EN 10080 (Raupapa B500)
Ko ngā paerewa rebar o Ūropi e aro nui ana ki te ngāwari o te mau, he mea nui tēnei mō te mahi rū whenua.
B500A – 500 MPa, he iti te ngāwari
B500B – 500 MPa, ngāwari waenga
B500C – 500 MPa, ngāwari (e whakamahia ana i roto i ngā hanganga rū whenua)
Ko te B500C te mea tino noa.

Paerewa o te USA – ASTM A615 / ASTM A706
He rerekē te whakamāramatanga o ngā kaha o ngā rebar i te mākete o Amerika (kei reira te ksi e whakamahia ana hei utu mō te MPa):
Kōeke 40 – 40 ksi ≈ 275 MPa
Tau 60 – 60 ksi ≈ 420 MPa (e whakamahia whānuitia ana)
Kōeke 75 – 75 ksi ≈ 520 MPa
Tuhipoka:
ASTM A615: paerewa whakakaha maitai waro
ASTM A706: he pai ake te whakarewa me te ngāwari, ā, e whakamahia whānuitia ana mō ngā tono ru whenua

Ngā Rahi me ngā Diameter o te Rebar Paerewa

He rerekē ngā paerewa rahi o ngā tūāpapa i ia rohe, ā, me āta whakataurite i te wā e hoko ana.

Ngā Diameter Rebar Noa i Haina (mm)
6, 8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 32, 36, 40
Ngā diameter iti (≤12 mm): ngā pereti, ngā arai, ngā hanganga māmā
Ngā diameter nui (≥16 mm): ngā kurupae, ngā pou, ngā turanga, ngā piriti
Ngā Diameter Rebar Noa i Ūropi (mm)
6, 8, 10, 12, 16, 20, 25, 32, 40

Ko te tikanga, ka whakamahia e ngā kaupapa o Ūropi he whānuitanga paerewa ake, hei whakapai ake i te whai huatanga o te hanga.

Tūtohi Rahi o te Reera US (# Pūnaha Pae)
Ka tautuhia te rebar US mā te tau o ngā pae, ehara i te diameter ine tika:
#3 → 9.5 mm
#4 → 12.7 mm
#5 → 15.9 mm
#6 → 19.1 mm
#7 → 22.2 mm
#8 → 25.4 mm
#9 → 28.7 mm
#10 → 32.3 mm

Tohutohu hokohoko:
Me huri tonu te rahi o ngā pae ki ngā diameter ine ina hoko mai i tāwāhi te rebar hei karo i ngā rerekētanga o te taumaha me te manawanui.

Te Roa, te Tākai, me te Tukunga o te Rebar

Ngā Roa Paerewa
9 mita
12 mita
Kei te wātea te tapahi ritenga kia rite ki te roa ina tonoa.

Momo Tākai
Ngā paihere wetekina – mō ngā pae whānui
He rebar here – te huarahi rongonui mō ngā tuku ipu me ngā tuku papatipu
He reera kōpiko (he iti ngā diameter – 6-10 mm, he rite rānei, e tika ana mō te tukatuka aunoa)

Ngā Tohutohu hei Kōwhiri i te Rebar Pai rawa atu mō tō Kaupapa

Mai i te tirohanga hokohoko me te hangarau:

Tirohia ngā waehere hoahoa me ngā whakaritenga hanganga ā-rohe i mua i te whiriwhiri i ngā māka.
Mō ngā whare rū whenua, ngā whare haumaru-teitei rānei, me whakaaro noa ki te ngāwari, kaua te kaha tuku.
Tirohia mēnā he hototahi ki ngā paerewa/pūnaha rahi pae/ngā āheinga roa mō tō kaupapa kaweake.

Mā te roa tika me te tika o te takai ka ārai i te para me te utu whakahaere.

Ahakoarino rinohe rauemi hanga whare paerewa, ka pā nui ngā momo rerekē, ngā pūnaha rahi, me ngā paerewa ā-rohe ki te utu kaupapa, te tutuki i ngā whakaritenga, me te mahinga hanganga.
Mō ngā kaihoko rino me ngā tohunga hanga whare, ko te mārama ki ēnei rerekētanga he tikanga mō ngā hoahoa haumaru ake, te hokohoko māmā ake, me te kimi rauemi pai ake.