Ka taea e te Pīrere Whakapiko Rebar 40mm te piko i ia pae 40mm?
I te tirohanga tuatahi, he mārama te whakautu. Mena ka hokona he mīhini hei piko rebar 40mm , me piko e ia he pae 40mm. I roto i te mahi, ka raru pea ngā kaihoko i taua whakaaro. Ko te diameter kua tāia ki runga i te pepa whakatakotoranga e pā ana ki tētahi rauemi me te āhua whakamātautau. Hurihia te momo maitai, te momo pae, te āhua piko rānei, ā, ka rerekē anō hoki te kaha e taea te whakamahi. Koia te take kāore pea e rite te tono a ngā pae e rua he 40mm te whānui ki tētahi mīhini piko rebar .
He maha ngā whakatakotoranga mīhini tūturu e whakaatu ana i te rerekētanga. Kotahi te piko arumoni 40mm e whakatauria ana mō te whakakaha 40mm Grade 240 engari ko te pae Grade 400 32mm anake. He whakahekenga 20% tēnā i roto i te diameter e whakaaetia ana me te kore e whakarerekē i te mīhini tonu. I rerekē te maitai; i rerekē hoki te kaha mahi i roto i taua mea.
He pai te whakatauranga 40mm, engari me whakaaro koinei te tīmatanga o te tirotiro i ngā whakatakotoranga kaua ko te mutunga. Me pātai tonu ngā kaihoko he aha te rauemi e pā ana ki te ahua. He maitai porowhita noa? He whakapakari kua whakarerekētia? He aha te momo maitai i whakamahia?
Hei tauira, kei te rārangihia e CAMCO tētahi mīhini GW40 me te whānuitanga piko o te 6–40mm mō te pae porowhita noa, ko te pae whakapiko o te Wāhanga II ia e herea ana ki te 6–32mm. He mea nui taua rerekētanga 8mm. Mā te kaihoko e pānui noa i te ahua "40mm" nui ka taea te whakaaro he kaha kāore i te tino whakaaria e te whakatakotoranga taipitopito.
| Tauira i Whakaputaina | Diameter Mōrahi | Ngā Mea e Whakaatuhia ana |
|---|---|---|
| Whakakaha taumata 240 | 40mm | Ka eke te maitai iti-kaha ki te mōrahi toharite |
| Whakakaha taumata 400 | 32mm | Ka whakaitihia e te kounga maitai teitei te diameter e taea te whakamahi |
| Pae porowhita noa | 40mm | Tērā pea he nui ake te kaha whakaputa o te maitai porowhita |
| Pae whakapōturi o te taumata II | 32mm | Tērā pea he iti iho te rohe o te whakakaha kua whakarerekētia |
Nō reira, ina kī mai te kaiwhakarato, "Ka pikohia e tēnei mīhini te maitai 40mm," ko te whakautu whai hua koia tēnei: "Ko tēhea maitai 40mm?" Mā taua pātai kotahi ka taea te whakaora i te maha o ngā kōrero whakamā i muri i te taenga mai o te mīhini ki te papaanga.
Mā te whānui e whakaatu te rahi o te pae, engari kāore e whakaatu te kaha o te rauemi ki te ātete i te hurihanga. Ko te whakakaha kaha ake te tikanga me nui ake te kaha ki te hanga, koia te take e whakarato ai ngā kaihanga i ngā herenga kaha rerekē mō ngā momo rerekē.
He tauira whai hua tēnei nō tētahi whakatakotoranga mō te mīhini piko rebar hiko TMG kua whakaputaina. E 40mm te taumata whakakaha o te mīhini, engari 32mm te taumata 400 anake. E tuku ana hoki te tauira kotahi i te whānuitanga piko 0–180°, te tika o te koki ±1° kua whakahuatia, me ngā tere kōpae i waenga i te 5 me te 10rpm. Nā ēnei tatauranga ka nui ake te whai hua o te whakatakotoranga i tētahi tapanga "40mm te mōrahi" noa iho, nā te mea ka whakamōhio atu ki te kaihoko i tētahi mea mō te kaha me te mana whakahaere.
Mō ngā kaimahi kirimana me ngā toa hanga rebar, he māmā noa iho te akoranga: whakatauritehia te mīhini ki te kaupapa whakapakari tuturu. Mena he nui ake te kaha o te pae e whakamahia ana e te kaupapa, kāore pea te diameter mōrahi e pānuitia ana e tika ana kia whakamahia e koe mō te whiriwhiri mīhini.
Ko tētahi atu pūtake o te whakapoauau tēnei. Kei ētahi pukapuka hokohoko te kupu "kaha piko o te pae maitai", engari ko te kaupapa tonu e whakamahi ana i te whakapakari kua whakapikohia. Kāore i te rite tonu ngā whakatauranga.
Ahakoa he pai te whakahaere a te mīhini i tētahi pae porowhita 40mm te whānui, he iti tonu te rohe kua whakaputaina mō te pae rino kua whakapōturitia. Tērā pea ka puta te rerekētanga i te kounga o te maitai me te āhua o te whakatauranga o te mīhini. Koia te take me rapu e ngā tīma hoko te kupu tika i roto i ngā whakatakotoranga, kaua e whakawhirinaki ki te ingoa hua anake.
Ara, ahakoa te ahua ōrite o te kupu "40mm steel bar" me te "40mm reinforcement bar" i roto i tētahi pukapuka iti, engari ki te pouaka miihini, he rerekē rawa ngā momo kiritaki e rua.
He wāhanga noa iho te mana o te mahi. Me piko hoki te pae ki te taha o te kaihanga tika, o te mandrel rānei. Mā te piko tino piri ka nui ake te taumahatanga o te maitai, nō reira ka whakatakotohia e ngā paerewa whakapakari he rohe mō te āhua piko, kaua e tukua kia takaihia te pae ki te taha o te pine e uru ana ki te mīhini.
E whakamahia ana e te aratohu taipitopito a te Eurocode 2 te diameter mandrel taketake o te 4 ngā wā o te diameter o te pae mō te whakakaha tae atu ki te 16mm, me te 7 ngā wā o te diameter o te pae mō ngā pae nui ake ina tirohia ana mēnā he kino ki te whakakaha. Mō te pae 40mm, ka puta he diameter mandrel o te 280mm i mua i te whakaaro ki ētahi atu tirotiro motuhake mō te kaupapa.
He mea tika kia maumahara ki taua tau. Tērā pea he nui te taipana o te mīhini hei neke i te pae 40mm, engari kāore tonu e tika mō te piko e hiahiatia ana mēnā kāore e wātea ana te taputapu tika. I te wā e whiriwhiri ana i tētahi mīhini piko rebar 40mm , me aro nui ki ngā pine, ki ngā roera me ngā kaihanga, pērā i te mana o te motuka.
Ka tāpirihia e te mahi whakaputa tētahi atu paparanga ki te pātai mō te kaha. He maha ngā pae e pikohia ana e ngā papa hanga i te huringa kotahi, nō reira kāore te mōrahi pae kotahi e whakaatu i te kōrero katoa.
Kotahi te mīhini B55-S e hokona ana i te UK, e tohua ana mō te pae kotahi 40mm, ngā pae e rua 32mm, ngā pae e toru 25mm rānei. He motuka toru-wāhanga 5.5kW tōna kaha, ā, ko te tere piko kua whakaputaina he 6rpm. He huarahi whai hua ake tēnei hei whakaahua i te kaha mahi nā te mea e whakaatu ana i te whanonga o te mīhini i raro i ngā huinga pae rerekē.
| Te Whakaritenga Piko | Te kaha i whakaputaina |
|---|---|
| Pae kotahi | 1 × 40mm |
| E rua ngā pae | 2 × 32mm |
| E toru ngā pae | 3 × 25mm |
| Mōta | 5.5kW |
| Tere piko | 6 rpm |
Mō tētahi wāhi e piko noa ana i ētahi wā, ko te whānui mōrahi pea te mea nui. Mō tētahi awheawhe e hanga ana i ngā kēhi i te rā katoa, ka tere tonu te hiranga o te tere o te huringa, te āheinga ki te mahi anō me te kaha o ngā pae maha.
Ko te huarahi haumaru ko te tīmata ki te rārangi mahi maitai, kaua ki te rārangi mīhini. Tuhia te whānui o te pae nui rawa, te momo maitai, ngā rahi pae noa e whakamahia ana i ia rā, ngā koki piko e hiahiatia ana me te whānui piko. Kātahi ka tirohia te auau o te puta mai o ngā pae nui rawa i roto i te mahi hanga.
Mena ka whakamahia noa te whakakaha 40mm i ētahi wā, ā, ko te nuinga o ngā mahi o ia rā kei roto i te awhe 16–25mm, he pai pea te whakamahi i tētahi piko rebar 40mm kua whakatauria tika. Mena he wāhanga o te mahi o ia rā te pae kaha-teitei 40mm, mā te neke ki tētahi akomanga mīhini nui ake ka nui ake te mahi a te kaiwhakahaere, kaua e waiho te mīhini ki te pito o runga o tana awhe kua whakaputaina mō te rā katoa.
Me tirotiro hoki te ngaohiko, te whirihoranga o te motuka, te tere piko, te taputapu, ngā wāhanga e manawapa ana me te urunga ki te ratonga i mua i te hoko. Kāore i te tino whakahihiri i te tau whānui nui kei te whārangi o mua, engari he nui ake te hiranga i muri i ngā marama e ono o te mahi tūturu.
| Whakatakotoranga | He Pātai hei Pātai |
|---|---|
| Te whānui mōrahi | Ko tēhea momo maitai me te momo pae e pā ana ki tēnei whakaahua? |
| Te kounga maitai | E ōrite ana ki te whakakaha i whakamahia mō taku kaupapa? |
| Pae porowhita, pae kua whakapōturitia rānei | Kua whakaputaina ngā herenga āheinga motuhake? |
| Rahi o te mandrel | Ka taea e te mīhini te whakaputa i te āhua piko e hiahiatia ana? |
| Te kaha o te pae maha | Ka taea te piko i ētahi pae i te huringa kotahi? |
| Tere piko | Ka tutuki rānei i ngā putanga whakaputa ngā whakaritenga mō te awheawhe? |
| Pūtake hiko | E tika ana te ngaohiko me te āputa mō te papa mahi? |
He māmā noa iho te kōrero matua: ko te kaha piko o te rebar he huinga o te diameter o te pae, te kounga o te maitai, te taputapu me ngā āhuatanga mahi . He pai te tapanga 40mm, engari kaua rawa e waiho koia anake te tau e whakamahia ana hei whakatau hoko.
Ngā Pātai Auau
Ka taea e ngā taputapu whakapiko rebar 40mm katoa te whakapiko i ngā rebar karaehe 40mm 400?
Kāore. E whakaatu ana ngā raraunga mīhini kua whakaputaina he maha ngā mīhini 40mm kua whakatauria mō te whakakaha 40mm Grade 240 engari ko te pae 32mm Grade 400 anake. Me tirotiro tonu te kounga maitai i muri i te kaha kua tohua.
Ka pāngia te kaha o te piko o te rebar e te kounga maitai?
Āe. Ka taea e te whakakaha kaha ake te whakaiti i te whānui o te pae mōrahi e taea ai e te mīhini te piko, ahakoa kei te rite tonu te tauira mīhini.
He rite te kaha o te pae porowhita 40mm ki te kaha o te pae rino 40mm?
Kāore pea. Ko ētahi mīhini GW40 e whakaputa ana i te kaha 40mm mō te pae porowhita noa engari 32mm anake mō te whakakaha kua whakapikotia.
He aha te whānui o te mandrel e whakamahia ana mō te pae 40mm i raro i ngā aratohu a te Eurocode?
Mō te whakakaha nui atu i te 16mm, ka whakamahia e te aratohu taipitopito Eurocode 2 te diameter mandrel iti rawa o te 7 ngā wā o te diameter o te pae ina tirohia ana mēnā he kino ki te whakakaha. Mō te pae 40mm, ka puta he 280mm i mua i te whakaarohia o ētahi atu tirotiro hoahoa.
He aha ngā mōhiohio me hoatu e au ki tētahi kaiwhakarato taputapu whakapiko rebar?
Whakaratohia ngā diameter pae noa me te diameter mōrahi, te kounga maitai, te momo pae, te koki piko e hiahiatia ana, te diameter piko, te rahinga whakaputa e tumanakohia ana me te tuku hiko ā-rohe. Mā ēnei mōhiohio ka pai ake te pūtake mō te kaiwhakarato ki te tūtohu i te mīhini tika.
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