Velocity Lock-up Device (LUD) & Velocity Lock-up Bearing (VLB) Rau Choj

Velocity Lock-up Device (LUD/LUD) thiab Velocity Lock-up Bearing (VLB) yog lub tshiab passive seismic tiv thaiv cov khoom tsim los ntawm Luzetech, tshwj xeeb tshaj yog rau cov choj thiab loj-scale tsim tej yaam num nyob rau hauv seismic zones, siab -cua cheeb tsam, los yog braking rog.

Xauv-Up Devicelos yog Shock Transmission Unit (STU) yog lub tog raj kheej roj - hom tiv thaiv - cov khoom siv seismic feem ntau siv hauv cov txuas hniav thiab cov tsev loj - nplai los tiv thaiv cov khoom thauj tam sim ntawd xws li av qeeg thiab nres thaum muaj xwm ceev. Nws lub luag haujlwm tseem ceeb nyob hauv kev sib koom ua ke ntawm cov qauv tsim los ntawm kev siv lub zog xauv lub cev: nws tso cai rau cov txuas hniav kom nthuav dav thiab cog lus ywj pheej nyob rau hauv txhua hnub, thaum ceev cov piers thiab choj decks thaum muaj kev vibrations tam sim ntawd, ua rau ntau lub piers sib koom ua haujlwm ntev. Cov cuab yeej tau ntim nrog lub siab -viscosity silicone resin nruab nrab uas muaj qhov thim rov qab thixotropy- ntws maj mam hloov mus rau qhov chaw me me nyob rau hauv ib qho xwm txheej, thiab nws cov viscosity surges ua kom cov kua dej yuav luag solidified thaum siab -kev cuam tshuam ceev, ua tiav cov piston xauv tam sim ntawd. Lub cev tseem ceeb yog tsim los ntawm siab -lub zog corrosion{10}}tiv taus stainless hlau thiab hlau alloy, nrog rau cov qauv sealing optimized rau cov yam ntxwv ntawm silicone resin. Nws lub neej kev pabcuam yog txwv los ntawm kev laus ntawm cov khoom sib khi thiab cov khoom siv corrosion. Thaum lub sij hawm installation, nws yog ib qho tseem ceeb los xyuas kom meej tias cov axis ua raws li cov kev taw qhia ntawm tus choj deformation, thiab cov cuab yeej hloov kho yuav tsum tau teeb tsa kom haum rau kev teeb tsa yuam kev-piv txwv li, kev kho qhov ntev tuaj yeem ua tiav los ntawm thav duab, lub tog raj kheej nqus, thiab tus pin{14}} qhov sib txuas mechanisms.

Velocity Lock-up Bearing yog ib yam tshiab ntawm seismic bearing ingeniously combining LUD nrog standard movable bearings (lub lauj kaub roj hmab bearings los yog spherical steel bearings). Nws yog qhov tsim nyog rau cov choj thiab lwm yam loj - cov phiaj xwm kev tsim kho hauv thaj chaw seismic, nrog rau ib puag ncig uas muaj cua daj cua dub thiab tseem ceeb ntawm lub tsheb nres. VLB zoo bears ntsug thiab kab rov tav loads; Nws qhov tshwj xeeb tshaj plaws yog tias LUD xauv hauv av qeeg lossis nres nres, txwv kev txav mus los ntawm sab sauv thiab sab qis ntawm cov kabmob, thiab ua rau ob qho tib si txav tau thiab ruaj khov piers los faib cov kab rov tav sib koom ua ke. VLB txo cov nqi ntawm qhov project, muaj kev ruaj khov zoo, thiab ua kom yooj yim installation, tshuaj xyuas, thiab hloov.

Ob qho khoom lag luam ua haujlwm raws li kev ceev- ua rau lub xeev hloov pauv, nrog silicone raws li qhov nruab nrab thiab cov khoom tseem ceeb suav nrog cov kaus mom kawg, cov roj silicone, lub tog raj kheej, thiab cov tshuab kaw lus:

Tej yam xwm txheej: Creep lossis kub hloov ntawm lub girder tsav qeeb tus txheeb ze txav ntawm lub girder thiab pier cap, ua rau lub piston txav maj mam nyob rau hauv lub tog raj kheej. Silicone ntws maj mam los ntawm ib lub chamber sib cais los ntawm lub piston mus rau lwm qhov, ua rau cov tshuaj tiv thaiv tsawg heev ntawm tus pas nrig piston.

Seismic/Braking Conditions: Thaum tus txheeb ze txav ceev ntawm lub piston tawm tsam lub tog raj kheej tshaj LUD tus tsim ceev, silicone tsis tuaj yeem ntws ntawm cov chav kom sai lossis txav qeeb heev. Lub sijhawm no, piston txav nres lossis qeeb qeeb, ua rau LUD kaw, thiab cov tshuaj tiv thaiv ntawm tus pas nrig piston tshaj qhov tsim kab rov tav. Tsis zoo li cov pa dampers, LUD tsis muaj qhov tseem ceeb ntawm lub zog dissipation thiab kev poob siab; nws lub luag haujlwm tseem ceeb yog kev faib tawm thiab kev sib kis. Thaum muaj av qeeg lossis cua daj cua dub, LUD lossis VLB kaw thiab ua raws li kev sib txuas ruaj khov, kom ntseeg tau tias cov rog kab rov tav tau sib npaug sib npaug thoob plaws ntau lub piers kom ua tiav cov kev tiv thaiv seismic.

3.1 Core Performance Parameters

3.2 Cov Txheej Txheem Kev Xaiv Khoom

XaivVLBYog hais tias lub xauv quab yuam F Tsawg dua los yog sib npaug rau 4000 kN lossis qhov chaw teeb tsa raug txwv.

XaivLUDYog tias 4000 kN < F Tsawg dua lossis sib npaug 20000 kN thiab qhov chaw teeb tsa txaus.

Cov khoom no tau dhau qhov kev sim nruj ntawm Shanghai Tongji Kev Tsim Kho Kev Tsim Kho Kev Tshawb Fawb Kev Tshawb Fawb, suav nrog:

5.1,Slow Speed ​​Test:

Siv 0.1 npaug ntawm tus qauv tsim rau 2694s: Lub Velocity Lock-up Device (LUD) tshem tawm 50.003mm ntawm qhov ceev ntawm 0.01856mm / s, uas ua tau raws li qhov yuav tsum tau soj ntsuam ntau dua 0.01mm / s.

Tom qab ntawd siv 0.1 npaug ntawm cov qauv tsim nyob rau hauv qhov kev taw qhia rov qab rau 5245s: lub LUD tshem tawm 101.2116mm ntawm qhov ceev ntawm 0.019296mm / s, uas ua tau raws li qhov yuav tsum tau soj ntsuam ntau dua 0.01mm / s.

Tom qab ntawd thov 0.1 npaug ntawm cov qauv tsim nyob rau hauv qhov kev taw qhia rov qab rau 3311s: lub LUD tshem tawm 53.4333mm ntawm qhov ceev ntawm 0.016138mm / s, uas ua tau raws li qhov yuav tsum tau soj ntsuam ntau dua 0.01mm / s.

5.2, Impact Test:

Los ntawm 0 mus rau tus tsim quab yuam F, cov khoom displaces 5.4017mm; thaum lub sijhawm tuav 5s, qhov kev hloov pauv yog 2.7465mm; qhov kev hloov ntawm F mus rau -F tsis tshaj 13.2904mm. Txhua yam ua tau raws li kev soj ntsuam xyuas.

Tsis muaj dej ntws, khoov, lossis kev puas tsuaj tshwm sim rau cov khoom thaum kuaj.

5.3, Overload Test:

Thov 1.5 npaug ntawm qhov tsim load (1.5F) tsawg dua 0.5s thiab tuav rau 5s; tom qab ntawd tam sim ntawd thov 1.5 npaug ntawm tus qauv tsim nyob rau hauv qhov kev taw qhia rov qab hauv 1s thiab tuav rau lwm 5s.

Tsis muaj dej ntws, khoov, lossis puas tsuaj rau cov khoom.

5.4, ​​Cyclic Load Test:

Siv 5 sinusoidal quab yuam cycles ntawm ib tug loading zaus ntawm 0.5Hz. Thaum lub load ncav cuag tus tsim load F, qhov kev tshem tawm yog 4.9744mm; Thaum lub load hloov ntawm F mus rau -F, qhov kev hloov pauv yog 13.031mm.

Tsis muaj kev sib tsoo, khoov, lossis kev puas tsuaj tshwm sim rau cov khoom hauv kev sim.

Cov Txuas Txuas: txuas txuas txuas txuas txuas ntxiv, txuas txuas txuas txuas txuas txuas ntxiv, txuas txuas txuas txuas txuas txuas ntxiv, thiab tsis yog -floating choj systems yuav tsum tau sib npaug deformation adaptation thiab seismic resistance.

Loj -Scale Buildings: Cov qauv hauv cheeb tsam seismic lossis siab -cua cheeb tsam uas xav tau kev thauj khoom rov qab.

Cov phiaj xwm tshwj xeeb: Cov chaw tsim khoom raug cuam tshuam los ntawm kev sib tsoo tseem ceeb lossis qhov kub thiab txias - raug cuam tshuam.

Cim npe nrov: ceev xauv-up ntaus ntawv (lud) & ceev xauv-up bearing (vlb) rau txuas hniav, Tuam Tshoj ceev xauv-up ntaus ntawv (lud) & ceev xauv-up bearing (vlb) rau choj tuam ntxhab, lwm tus neeg