Feem ntau siv kev sib cais bearings muaj xws li laminated roj hmab bearings, txhuas roj hmab bearings thiab kev sib txhuam pendulum bearings, thiab lwm yam. Roj hmab bearings muaj kev ruaj khov, zoo durability thiab dav siv. Txawm li cas los xij, lub peev xwm ntsug ntawm cov roj hmab bearings yog qhov tsawg, thiab lawv lub zog dissipation muaj peev xwm raug txwv. Tom qab ntawd, ntau yam kev ua tau zoo ntawm kev sib cais bearings tau tsim ua tiav, xws li siab -damping roj hmab bearings, kev sib txhuam zawv zawg hom bearings, kheej kheej bearings, siab -load-cov kabmob ntau-kev taw qhia rotating bearings thiab kev sib txhuam zawv zawg thiab lwm yam.
Qhov kev tshem tawm ntawm cov qauv kev sib cais yog concentrated nyob rau hauv cov txheej txheem cais. Txhawm rau txwv kev hloov pauv ntau dhau, cov kabmob roj hmab feem ntau yog ua ke nrog cov dampers kom ua tiav lub hom phiaj ntawm kev txo qis seismic teb ntawm lub superstructure thiab kev hloov pauv ntawm cov txheej txheem cais.
Rau cov txheej txheem kev sib cais uas siv cov kua nplaum dampers los txwv txoj kab rov tav, kev ua haujlwm zoo thiab kev ntseeg siab ntawm cov dampers yog qhov tseem ceeb:
(1) Ntxiv cov viscous dampers tuaj yeem txo qhov kawg kab rov tav hloov pauv ntawm cov qauv piv nrog rau kev sib cais yooj yim.
(2) Tom qab ntxiv cov dampers, qhov damping piv ntawm cov qauv tseem ceeb nce, txo nws cov seismic load.
(3) Kev siv cov viscous dampers uas tuaj yeem ua haujlwm zoo ntawm qhov sib txawv ntawm qhov kub thiab qhov sib txawv yog ib qho zoo ntxiv rau cov roj hmab cais tawm cov kabmob uas muaj qee qhov tsis zoo hauv kev ua haujlwm hauv ib puag ncig sib txawv. Nws tuaj yeem txhim kho kev ntseeg tau ntawm tag nrho cov system.
(4) Tiv thaiv kom tsis txhob muaj qhov sib cais los ntawm kev tawg lossis tawg thiab ua tsis ruaj khov. Cov ntaub qhwv roj hmab yog qhov ua rau tsis ruaj khov thiab kev puas tsuaj thaum qhov siab siab dhau. Thaum dampers ntxiv rau txwv tsis pub txav mus los, qhov ua tau ntawm qhov tsis ruaj khov thiab kev puas tsuaj tuaj yeem txo qis heev.
(5) Kev sib xyaw ua ke ntawm kev sib cais bearings thiab viscous dampers tuaj yeem txo tus nqi siv los ua kom tiav lub hom phiaj ntawm kev vibration txo. Txhawm rau ua tiav lub hom phiaj ntawm kev txo qis txoj kab rov tav thiab seismic load ntawm cov qauv los ntawm 50%, tus nqi ntawm kev ntxiv cov roj hmab pads yog ntau dua li tus nqi ntxiv tom qab txhim kho dampers.