Hana o na Bearings
Hoʻohana ʻia nā alahaka no ka hoʻoili ʻana i nā ikaika mai ka superstructure a i ka substructure, e ʻae i nā ʻano o ka neʻe ʻana o ka superstructure: Nā neʻe unuhi;he mau neʻe ʻana ma nā ʻaoʻao kū pololei a me nā ʻaoʻao ma muli o nā ikaika i loko o ka mokulele a i waho paha o ka mokulele e like me ka makani a me ke kaumaha ponoʻī.Nā neʻe hoʻololi;kumu no nā manawa.A hiki i ka waena o kēia kenekulia, ʻo nā bearings i hoʻohana ʻia i nā ʻano like ʻole:
· Pin
· ʻOka
· Rocker
· Metala sliding bearings
ʻO kahi pine pine kahi ʻano o nā bearings paʻa e hoʻokipa i nā wili ma o ka hoʻohana ʻana i ke kila.ʻAʻole ʻae ʻia nā neʻe unuhi.Hoʻokumu ʻia ka pine ma luna o nā ʻaoʻao semicircularly recessed luna a me lalo me kahi pine pōʻai paʻa i kau ʻia ma waena.ʻO ka mea maʻamau, aia nā pāpale ma nā ʻaoʻao ʻelua o ka pine e mālama i ka pine mai ka neʻe ʻana mai nā noho a e pale aku i nā ukana hāpai inā pono.Hoʻopili ʻia ka pā luna i ka pā hoʻokahi e ka bolting a i ʻole ka wili.Noho ʻia ka pā curved haʻahaʻa ma luna o ka pā pōhaku.ʻAe ʻia ka neʻe ʻana o ka rotational.Kāohi ʻia nā neʻe ʻaoʻao a me ka unuhi.
Huina 'Ano Roller
No nā noi hoʻokaʻawale i ka mīkini kaʻawale, hoʻohana ʻia ka ʻōwili a me ka lawe ʻana i ka pōleʻa.Loaʻa iā ia nā wili cylindrical a me nā pōpō.Ua lawa ka pale ʻana i nā neʻe lawelawe a me ka damping ma muli o ka mea i hoʻohana ʻia.
Pono ʻo AASHTO e hoʻolako ʻia nā wili hoʻonui me "nā ʻaoʻao ʻaoʻao nui" a alakaʻi ʻia e ka hana ʻana a i ʻole nā mea ʻē aʻe e pale ai i ka neʻe ʻana i ka ʻaoʻao, skewing, a me ka kolo (AASHTO 10.29.3).
ʻO kahi drawback maʻamau i kēia ʻano bearing, ʻo ia ka ʻohi ʻana i ka lepo a me nā ʻōpala.ʻAe ʻia nā neʻe lōʻihi.Kāohi ʻia nā neʻe ʻana a me nā hoʻololi ʻana.
Kaumaha ʻAno Rocker
ʻO ke ala pōhaku kahi ʻano o ka piʻi hoʻonui e hele mai i kahi ʻano nui.Loaʻa maʻamau me kahi pine ma luna e hoʻomaʻamaʻa i ka hoʻololi ʻana, a me kahi ʻaoʻao curved ma lalo e hoʻokipa ai i nā neʻe unuhi.Hoʻohana nui ʻia nā pahu pōhaku a me nā pin i nā alahaka kila.
Piʻi hoʻoheheʻe
Hoʻohana ʻia kahi papa hoʻoheheʻe ʻana i kahi pā metala mokulele e ʻauheʻe ana i kekahi e hoʻokō i nā unuhi.Hoʻopuka ka ʻili kuʻi paheʻe i ka ikaika frictional i hoʻopili ʻia i ka superstructure, substructure, a me ka bearing ponoʻī.No ka hoʻemi ʻana i kēia ikaika friction, hoʻohana pinepine ʻia ʻo PTFE (polytetrafluoroethylene) ma ke ʻano he mea lubricating sliding.ʻO ka PTFE i kekahi manawa i kapa ʻia ʻo Teflon, i kapa ʻia ma hope o kahi hōʻailona PTFE i hoʻohana nui ʻia.Hoʻohana wale ʻia nā Bearings Sliding ma ke ʻano he ʻāpana i nā ʻano bearings ʻē aʻe.Hiki ke hoʻohana wale ʻia nā bearings sliding maʻemaʻe ke hiki ʻole ke hoʻololi ʻia e ka deflection i nā kākoʻo.No laila ua kaupalena ʻia lākou i ka lōʻihi o 15 m a i ʻole ka liʻiliʻi e ASHTTO [10.29.1.1]
Hiki i nā ʻōnaehana hoʻoheheʻe me kahi coefficient i koho mua ʻia o ka friction ke hāʻawi i kahi kaʻawale ma o ka kaupalena ʻana i ka wikiwiki a me nā ikaika i hoʻoili ʻia.Hiki i nā slider ke hāʻawi i ke kū'ē ma lalo o nā kūlana lawelawe, ka maʻalahi a me ka hoʻoneʻe ikaika ma o ka neʻe ʻana.ʻOi pinepine ʻia nā mea paheʻe hoʻoheheʻe ʻia a spherical paha ma mua o nā ʻōnaehana hoʻoheheʻe pālahalaha ma muli o ko lākou hopena hoʻihoʻi.ʻAʻole hāʻawi ʻia ka ikaika hoʻihoʻi ʻana i nā mea paheʻe pālahalaha a aia nā mea hiki ke hoʻoneʻe ʻia me nā aftershocks.
Kuʻikuʻi Pinned Bearing
He ʻano kūikawā ia o ka Roller Bearing kahi i hāʻawi ʻia ai ka pine Knuckle no ka haʻalulu maʻalahi.Hoʻokomo ʻia kahi pine knuckle ma waena o ka hoʻolei ʻana o luna a me lalo.Hoʻopili ʻia ka hoʻolei ʻana o luna i ka Bridge superstructure, aʻo ka hoʻolei ʻana i lalo e kau ʻia ma luna o kahi ʻano huila.Hiki ke hoʻokipa ʻia ke kuʻi ʻana i nā neʻe nui a hiki ke hoʻokipa i ka neʻe ʻana a me ka neʻe ʻana.
Na ipuhao
ʻO ka POT BEARING kahi pahu kila pāpaʻu, a i ʻole ipu hao, ma ke koʻi kū pololei me kahi disk neoprene i ʻoi aku ka lahilahi ma mua o ka cylinder a paʻa paʻa i loko.Hoʻokomo ʻia kahi piston kila i loko o ka cylinder a kau i ka neoprene.Hoʻohana ʻia nā apo keleawe pālahalaha e hoʻopaʻa i ka ʻōpala ma waena o ka piston a me ka ipu hao.Ke hana nei ka lāʻau lapaʻau e like me ke kahe ʻana o ka wai e kahe ana i ka wā e hiki mai ana ka hoʻololi ʻana.No ka mea ʻaʻole e pale ka bearing i nā manawa kūlou, pono e hāʻawi ʻia me kahi noho alahaka.
Nā Kūlana Elastomeric Plain (E nānā i ka PPT)
Laminated Elastomeric Bearings
ʻO nā bearings i hana ʻia me nā papa ākea o ka synthetic a i ʻole ka ʻōpala maoli i nā ʻāpana lahilahi i hoʻopaʻa ʻia ma waena o nā papa kila.Hiki i kēia mau bearings ke kākoʻo i nā haʻahaʻa kūpaʻa kiʻekiʻe me nā deformations liʻiliʻi loa.Hiki ke maʻalahi kēia mau bearings ma lalo o nā haʻawe lateral.ʻO nā pā kila e pale i nā ʻāpana ʻōpala mai ka hoʻoulu ʻana.Hāʻawi ʻia nā kumu alakaʻi e hoʻonui i ka hiki ke hoʻoheheʻe ʻia no ka mea ʻaʻole hāʻawi nā bearings elastomeric maʻemaʻe i ka damping nui.He palupalu lākou ma ka ʻaoʻao ākea a paʻakikī ma ka ʻaoʻao kū.
Loaʻa iā ia kahi pahu elastomeric laminated i hoʻolako ʻia me kahi cylinder alakaʻi ma ke kikowaena o ka bearing.ʻO ka hana o ka ʻāpana laminated rubber-steel o ka bearing e lawe i ke kaumaha o ka hale a hāʻawi i ka elasticity post-yield.Hoʻolālā ʻia ke kumu alakaʻi e hoʻololi i ka plastically, a laila e hāʻawi ana i ka dissipation ikehu.Hoʻohana ʻia nā bearings kepau i nā wahi seismically ikaika ma muli o kā lākou hana ma lalo o ke kaumaha o ke ōlaʻi.
Ka manawa hoʻouna: Nov-22-2022