Buckling Restrained Brace (BRB): Phau Ntawv Qhia Txog Seismic Energy Dissipation Devices

Cov txheej txheem muaj pes tsawg leeg ntawm BRB yog ua tib zoo tsim los ua kom pom kev ua haujlwm zoo, nrog rau ob qho kev teeb tsa tseem ceeb: kab rov tav muaj pes tsawg leeg thiab qhov ntev ntev. Kab rov tav, BRB suav nrog plaub yam tseem ceeb uas ua haujlwm sib haum xeeb kom xa cov seismic ruaj khov.

CovCore Unityog lub pob txha caj qaum ntawm BRB, ua lub luag haujlwm tseem ceeb -cov kabmob thiab lub zog-dissipating tivthaiv. Feem ntau tsim los ntawm qis- tawm los- taw tes hlau, cov hlau zoo tib yam, lossis cov hlau tshwj xeeb, nws muaj ntau yam ntoo khaub lig-cov ntawv ntu- suav nrog kuv-puab, ntoo khaub lig-puab, thiab H-puab- kom haum rau ntau yam engineering xav tau. I- cov seem zoo li yog qhov zoo tagnrho rau cov qauv me me -span, thaum H- zoo li cov seem muab siab flexural txhav rau cov ntawv loj -span. Nyob rau hauv axial quab yuam, lub hauv paus tseem ceeb yields thiab dissipates seismic zog los ntawm rov nro thiab compression deformations, nrog rau nws tsim optimized rau cov neeg kho tshuab ntsuas tseem ceeb xws li yield zog, qhov kawg lub zog, thiab elongation los xyuas kom meej zoo zog nqus thaum av qeeg.

Complementing lub core unit yog lubConstraint Unit, uas tiv thaiv cov tub ntxhais los ntawm buckling nyob rau hauv compression thiab tuav ruaj khov mechanical zog txawm nyob rau hauv loj deformations. Cov khoom siv dav dav rau chav tsev txwv xws li cov kav hlau, pob zeb, lossis lwm yam siab -kev ua tau zoo, nrog cov yeeb nkab steel uas muaj cov pob zeb lossis cov khoom tshwj xeeb yog cov ntawv siv dav tshaj plaws. Kev ua tib zoo tsim qhov sib txawv yog khaws cia nruab nrab ntawm chav tsev txwv thiab chav tsev tub ntxhais kom tso cai rau kev nthuav dav dawb thiab kev cog lus ntawm cov tub ntxhais thaum lub sij hawm deformation, nrog rau qhov sib txawv me me txiav txim siab los ntawm cov yam ntxwv xws li qhov loj me, cov khoom siv, thiab qhov project- cov kev cai tshwj xeeb.

CovSliding Mechanismyog qhov tseem ceeb ntawm kev sib txuas ntawm cov tub ntxhais chav tsev thiab chav tsev txwv, tsim los txo kev sib txhuam thiab xyuas kom cov tub ntxhais tuaj yeem swb dawb thaum lub sijhawm deformation. Cov txheej txheem no yog tsim los kom sib npaug ntawm kev sib txhuam, kev ua haujlwm ntev, thiab kev teeb tsa yooj yim, kom ntseeg tau tias BRB tswj kev ua haujlwm zoo ib yam ntawm nws lub neej ua haujlwm ntev. Yog tias tsis muaj cov txheej txheem zawv zawg zoo, kev sib txhuam ntawm lub hauv paus thiab qhov txwv yuav cuam tshuam kev deformation, cuam tshuam rau BRB lub zog -dissipating peev xwm.

Txuas lub BRB rau cov qauv tseem ceeb yog covKev sib txuas Nodes, uas ua lub luag haujlwm tseem ceeb hauv kev xa cov rog los ntawm txoj hlua khi mus rau lub tsev cov kab teeb, kab, thiab lwm yam khoom siv. Peb hom kev sib txuas tseem ceeb yog siv hauv BRB daim ntawv thov, txhua qhov muaj qhov zoo sib xws thiab kev txiav txim siab kom haum rau qhov kev xav tau sib txawv.

Welded kev twb kev txuasyog nyiam rau nws lub zog siab thiab kev ncaj ncees, tsim kom muaj kev ruaj khov uas tuaj yeem tiv taus lub zog tensile, compressive, thiab shear rog. Ua tiav thaum lub sij hawm lub Hoobkas prefabrication, welded kev sib txuas ua ke BRB seamlessly nrog cov qauv tseem ceeb, pab txhawb kev sib kis tau zoo thiab txhim kho tag nrho cov qauv kev ruaj ntseg. Txawm li cas los xij, txoj kev no yuav tsum muaj kev tswj xyuas kom zoo- vuam tsis zoo tuaj yeem ua rau tawg, qhov pores, lossis cua sov- thaj chaw cuam tshuam uas txo cov zog steel, thiab cov kev sib txuas welded tsis yog- tshem tawm, ua rau tom qab- av qeeg tu lossis hloov nyuaj.

Bolted kev twb kev txuasmuaj superior detachability, tso cai rau ib qho yooj yim disassembly thiab hloov, uas yog zoo tagnrho rau retrofitting tej yaam num los yog cov qauv uas yuav tsum tau muaj kev tu ncua. Los ntawm kev kho cov ntsia liaj qhov rooj zawm torque, engineers tau precisely tswj kev sib txuas nruj thiab preload, kom ntseeg tau tias kev ua tau zoo. Tsis tas li ntawd, kev sib txuas bolted zam qhov siab - qhov kub thiab txias los ntawm vuam, txo qhov kev pheej hmoo ntawm kev ua haujlwm steel degradation. Ntawm qhov downside, bolted kev sib txuas muaj zog qis dua piv rau cov welded, xav tau ntau qhov chaw teeb tsa, thiab raug nqi ntau dua vim qhov xav tau ntawm bolts, ceev, thiab ntxhua khaub ncaws.

Pin kev sib txuasNws muaj nuj nqis rau nws qhov kev sib hloov ua tau zoo, tso cai rau qee qhov kev hloov pauv hloov pauv mus rau cov txheej txheem deformation thaum muaj av qeeg thiab txo cov rog sab hauv. Hom kev sib txuas no yog ib qho yooj yim rau nruab, tsis tas yuav muaj kev sib txuas los yog ntsia liaj qhov rooj -tightening, thiab yog haum rau braces ntawm ntau qhov sib txawv. Txawm li cas los xij, kev sib txuas tus pin muaj qhov txwv tsis pub thauj khoom- cov kabmob muaj peev xwm, yog qhov yooj yim hnav ntawm cov pins thiab lub qhov phab ntsa thaum lub sijhawm, thiab xav tau kev tsim qauv siab thiab machining precision kom ua haujlwm tau zoo.

Vertically, Buckling Restrained Energy-Dissipation Brace muaj lub zog nruab nrab-dissipation ntu thiab ob ntu txuas kawg. Lub zog-dissipation ntu nta tshwj xeeb tsim cov khoom siv tseem ceeb uas tau txais thawj zaug thaum muaj xwm txheej seismic, ua ntej lub zog dissipation los tiv thaiv cov qauv tseem ceeb. Qhov kawg kev sib txuas ntu, ua los ntawm siab - lub zog steel, yog ruaj khov rau cov khoom siv los ntawm kev vuam, bolting, lossis pinning, kom ntseeg tau tias muaj kev sib kis tau zoo thiab tag nrho cov qauv kev ruaj ntseg.

BRBs muaj npe nrov rau lawv lub peev xwm los xa cov kev ua tau zoo, txhim khu kev qha thoob plaws ntau yam kev siv. Los ntawm siab-nce thiab super- cov tsev siab siab mus rau loj- chaw ntau pob, chaw ua yeeb yam, txuas hniav, thiab seismic retrofitting tej yaam num, BRBs muab tus nqi- siv tau, cov tshuaj tiv thaiv zoo rau kev txhim kho seismic resilience. Los ntawm kev tshem tawm buckling, ua kom muaj zog ruaj khov, thiab muab cov kev sib txuas yooj yim, BRBs tau dhau los ua lub hauv paus ntawm kev tsim seismic niaj hnub, ntseeg los ntawm cov kws ua haujlwm thoob ntiaj teb los tiv thaiv lub neej thiab khoom thaum muaj av qeeg.