Basa reBearings
Mabhiriji mabhengi anoshandiswa kuendesa masimba kubva kune superstructure kuenda kune substructure, achibvumira anotevera marudzi ekufamba kweiyo superstructure: Shanduro mafambiro;ndiko kutamiswa kwakatwasuka uye kwakachinjika nzira nekuda kwe-mu-ndege kana kunze-kwe-ndege masimba semhepo uye huremu hwega.Kutenderera mafambiro;chikonzero nekuda kwenguva.Kusvikira pakati pezana rino remakore, mabearings aishandiswa aiva nemhando dzinotevera:
· Pini
· Roller
· Rocker
· Simbi inotsvedza mabhengi
Pini inotakura imhando yemabhengi akagadziriswa anogadzirisa kutenderera kuburikidza nekushandiswa kwesimbi.Mafambiro ekushandura haatenderwi.Pini iri kumusoro inoumbwa nepamusoro nepasi semicircularly recessed surfaces ine pini yakasimba yedenderedzwa yakaiswa pakati.Kazhinji, kune zvivharo kumativi ose epini kuitira kuti pini irege kutsvedza kubva pazvigaro uye kuramba mitoro yekusimudza kana zvichidiwa.Iyo yekumusoro ndiro yakabatana kune yega ndiro nebhaudhi kana welding.Iyo yepasi yakakomberedzwa ndiro inogara pane masonry plate.Rotational Movement inobvumirwa.Mafambiro eLateral neshanduro anorambidzwa.
Roller Type Bearings
Zvekuzviparadzanisa nevamwe mumichina yekuzviparadzanisa nevamwe, roller uye bhora rinotakura zvinoshandiswa.Inosanganisira cylindrical rollers uye mabhora.Zvakakwana kupikisa mafambiro ebasa uye kunyorova zvichienderana nezvinhu zvakashandiswa.
AASHTO inoda kuti ma<em>expansion rollers ave akashongedzerwa ne “sential side bars” uye atungamirirwe negiya kana dzimwe nzira dzekudzivirira lateral movement, skewing, and creeping (AASHTO 10.29.3).
A general drawback kune rudzi urwu rwekutakura maitiro ayo ekuunganidza guruva nemarara.Kufamba kwelongitudinal kunobvumirwa.Lateral Movements uye Kutenderera kunorambidzwa.
Rocker Type Bearing
A rocker bear imhando yekuwedzera inotakura inouya mumhando dzakasiyana-siyana.Inowanzo kuve nepini kumusoro iyo inofambisa kutenderera, uye nzvimbo yakakombama pazasi inotambira mafambiro ekushandura.Rocker nemapini mabhengi anonyanya kushandiswa mumabhiriji esimbi.
Sliding Bearings
Kutsvedza kunoshandisa imwe simbi ndiro inotsvedza ichitarisana neimwe kuti iwane shanduro.Iyo inotsvedza inotakura inoburitsa simba rinopokana rinoshandiswa kune superstructure, substructure, uye kutakura pachayo.Kuti uderedze simba rekukwesha iri, PTFE (polytetrafluoroethylene) inowanzoshandiswa sechinhu chinotsvedza chekuzora.PTFE dzimwe nguva inodaidzwa kunzi Teflon, yakatumidzwa zita remhando inoshandiswa zvakanyanya yePTFE.Sliding Bearings inoshandiswa yoga kana kuti inowanzoshandiswa sechikamu mune mamwe marudzi emabhengi.Pure sliding bearings inogona kushandiswa chete kana kutenderera kunokonzerwa nekutsauka pazvitsigiro kusingaite.Naizvozvo vanoganhurirwa kune kureba kwemamita gumi nemashanu kana zvishoma neASHTO [10.29.1.1]
Kutsvedza masisitimu ane predefined coefficient of friction inogona kupa kuparadzaniswa nekudzikamisa kukwirisa uye masimba anotamiswa.Slider inokwanisa kupa kupokana pasi pemamiriro ebasa, kuchinjika uye kumanikidza-kutamisa nekutsvedza kufamba.Maumbirwo kana spherical masiraidhi anowanzo kufarirwa pane akafuratira masisitimu ekutsvedza nekuda kwekudzoreredza kwawo.Mafurati anotsvedza haape simba rekudzoreredza uye kune mikana yekutamisa nekumashure.
Knuckle Pinned Bearing
Iyo yakakosha fomu yeRoller Bearing umo iyo Knuckle pini inopihwa kuitira nyore kuzunungusa.Pini yepini inopinzwa pakati pepamusoro nepasi.Iko kukanda kwepamusoro kwakasungirirwa kuBridge superstructure, nepo kukanda kwepasi kunozorora pane dzakatevedzana dzema rollers.Knuckle pin inotakura inogona kugarisa mafambiro akakura uye inogona kugamuchira kutsvedza pamwe nekutenderera kwekufamba.
Pot Bearings
POT Bearing rine silinda yesimbi isina kudzika, kana poto, paakisi yakatwasuka ine neoprene dhisiki iyo yakati tete pane humburumbira uye yakaiswa zvakasimba mukati.Piston yesimbi inokwana mukati mehumburumbira uye nemabheya pane neoprene.Mhete dzendarira dzakafuratira dzinoshandiswa kusunga rabha pakati pepiston nepoto.Rabha rinoita kunge viscous fluid inoyerera sezvo kutenderera kungaitika.Sezvo kubereka kusingarambidze nguva dzekukotama, inofanirwa kupihwa chigaro chebhiriji.
Plain Elastomeric Bearings (Rejera PPT)
Laminated Elastomeric Bearings
Mabearings akaumbwa neakachinjika akaturikidzana erabha yekugadzira kana yechisikigo muzvidimbu zvitete zvakasungwa pakati pemarata esimbi.Aya mabearings anokwanisa kutsigira mitoro yakakwira yakatwasuka ine diki deformations.Aya mabhengi anochinjika pasi pe lateral mitoro.Mahwendefa esimbi anodzivirira matinji erabha kuti asaputika.Lead cores inopihwa kuti iwedzere kunyorova simba sezvo plain elastomeric bearings isingape yakanyanya kunyorova.Kazhinji dzakapfava munzira yakachinjika uye dzakaomarara munzira yakatwasuka.
Iyo ine laminated elastomeric bearing yakashongedzerwa nelead cylinder pakati pekubereka.Basa rerubber-steel laminated chikamu chekutakura ndechekutakura uremu hwechimiro uye kupa post-yellow elasticity.Iyo inotungamira musimboti wakagadzirirwa kukanganisa plastiki, nekudaro ichipa damping simba rekubvisa.Lead rubber bearings inoshandiswa munzvimbo dzine kudengenyeka nekuda kwekuita kwavo pasi pemitoro yekudengenyeka kwenyika.
Nguva yekutumira: Nov-22-2022