EN15129 Tshooj 6:Displacement Dependent Devices (DDD)- Cov qauv thiab cov khoom lag luam
Raws li ib feem tseem ceeb ntawm European seismic engineering qauv, EN15129 Clause 6 tsom rauDisplacement Dependent Devices (DDD)- tshwj xeeb seismic Cheebtsam tsim los kho cov yam ntxwv dynamic yam ntxwv thiab dissipate seismic zog. Tsis zoo li tshaj tawm- cov khoom siv rhiab heev, DDD Kev ua tau zoo yog txiav txim siab los ntawm kev hloov chaw, ua rau lawv qhov tseem ceeb rau kev ua kom zoo dua seismic teb nyob rau hauv cov qauv nyob rau hauv seismic aav raws li tau hais los ntawm EN 1998 series. Kab lus no muab cov ntsiab lus dav dav ntawm Clause 6 cov kev cai tseem ceeb thiab cov ntsiab lus tseem ceebDDD cov khoom, tailored rau European thiab American engineering cov kws tshaj lij, cov neeg cog lus, thiab cov neeg yuav khoom.
Cov ntsiab lus tseem ceeb ntawm EN15129 Clause 6
1. Scope thiab txhais
Nqe 6 tswj hwm ob pawg tseem ceeb ntawmDDD: linear devices (LD) and nonlinear devices (NLD). Lub ntsiab txhais feature ntawmDDDyog tias lawv tsis dais ntsug loads. Ntxiv thiab,buckling -txoj hlua khi(BRBs) uas muab ntxiv damping nyob rau hauv cov qauv qhia meej meej raws liDDD. Supplementary technical information txogDDDmuaj nyob rau hauv Annex D ntawm EN15129.
Cov cuab yeej no tshwj xeeb rau cov qauv hauv cheeb tsam seismic raws li EN 1998 series, nrog rau lub hom phiaj tseem ceeb ntawm kev txhim kho cov qauv kev ua haujlwm los ntawm kev tswj hwm tus cwj pwm tsis zoo thiab cuam tshuam seismic zog, yog li ua haujlwm sib koom ua ke nrog kev tiv thaiv seismic tag nrho.
2. Kev faib tawm ntawmDDD
Linear Devices (LD): Tus cwj pwm los ntawm cov kab tawm los yog quasi - tus cwj pwm tsis sib xws, LDs yog siv los ua kom zoo rau cov khoom siv hluav taws xob zoo. Lawv cov me me nonlinearity thiab lub zog dissipation muaj peev xwm yog tsim los ua tau raws li cov qauv tsim qauv, kom ntseeg tau qhov yooj yim thiab qhov tseeb hauv kev tshuaj xyuas engineering.
Nonlinear Devices (NLD): Kev nthuav tawm tus cwj pwm tsis muaj zog, NLDs txhim kho cov qauv kev ua haujlwm zoo los ntawm kev qhia qhov tseem ceeb tsis muaj kab thiab / lossis lub zog tawg. Vim lawv cov lus teb nyuaj, lawv yuav tsum tau muab tso rau hauv cov qauv uas tsis yog-linear kom ntseeg tau tias kev tsim seismic txhim khu kev qha.
3. Cov kev ua tau zoo thiab kev ua raws cai
Nqe Lus 6 qhia txog cov txheej txheem ua tau zoo los xyuas kom meejDDDkev cia siab nyob rau hauv seismic tej yam kev mob:
Tshem tawm thiab Load Resistance: DDDyuav tsum tiv thaiv qhov kev tshem tawm lossis kev txwv kev thauj khoom (qhov twg mus txog ua ntej), nrog rau qhov tsawg kawg nkaus kev nyab xeeb () ntawm 1.1. Rau cov khoom sib xyaw ua ke rau hauv kev sib cais, cov xwm txheej no tau hloov kho kom haum rau qhov muaj peev xwm hloov chaw ntawm cov khoom siv cais tawm (saib Tshooj 8 ntawm EN15129).
Force-Txoj kab uas hla:Qhov nkhaus yuav tsum tsis txhob pom qhov sib txawv ntawm qhov qis qis thaum qhov kev hloov pauv lossis kev thauj khoom mus txog qhov kev txwv tsim tshwj xeeb, ua kom ruaj khov load-cov kabmob muaj peev xwm thaum muaj xwm txheej seismic.
Cyclic Stability:Qhov zoo nruj thiab zoo damping ntawmDDDyuav tsum nyob ruaj khov nyob rau hauv lub voj voog. Rau lub voj voog kuv Ntau dua lossis sib npaug rau 2, kev sib txawv ntawm lub voj voog thib 3 (ib qho taw qhia rau kev ua haujlwm ruaj khov) yuav tsum tsis pub tshaj 10%.
Residual Displacement:Raws li kev ua haujlwm tsis pub dhau lub xeev (SLS) seismic kev ua, xoom- quab yuam cov chaw seem yuav tsum raug txo kom tsawg (pom zoo kom yog 5% ntawm qhov tsim tawm los yog tsawg kawg yog 10 hli, qhov twg loj dua), txo cov ncej- av qeeg kev puas tsuaj thiab kho cov nqi.
4. Cov khoom siv thiab kev xeem yuav tsum tau ua
Khoom siv rauDDDyog categorized rau hauv "cov ntaub ntawv tseem ceeb" (tseem ceeb rau cyclic seismic kev ua tau zoo) thiab "cov ntaub ntawv qauv" (rau load- bearing functions). Cov ntaub ntawv tseem ceeb xws li elastomers, steel, thiab cov duab nco alloys (SMA) yuav tsum ua raws li cov qauv European nruj:
Elastomers: Tsawg-damping thiab siab-damping elastomers yuav tsum ua raws li cov cai hauv Cov Lus 10 thiab 11 ntawm Nqe 8, raws li, nrog rau kev txheeb xyuas lub zog rau substrates.
Hlau: Yuav tsum ua raws li EN 10025, EN 10083, lossis EN 10088 series qauv, kom ntseeg tau tias muaj zog thiab qaug zog.
Cov Khoom Siv Tshwj Xeeb (piv txwv li, SMA): Yuav tsum ua tau raws li cov qauv European uas twb muaj lawm, nrog rau kev sim ntxiv rau cov yam ntxwv ntawm kev hloov pauv, kev ua haujlwm cyclic, thiab kev hloov pauv kub.
Kev ntsuam xyuas yog lub hauv paus ntawm Nqe Lus 6, suav nrog kev sim cov khoom siv, kev kuaj xyuas lub Hoobkas tsim khoom (FPC), kev ntsuas hom khoom, thiab ua ntej- kev kuaj xyuas. Kev ntsuam xyuas hom yuav tsum tau muaj thaum muaj kev hloov pauv rau cov cuab yeej geometry, cov khoom siv, lossis kev sib txuas, thaum FPC kev sim (tus nqi piv txwv ntau dua lossis sib npaug li 2%) ua kom muaj kev ua tau zoo ib yam hauv kev tsim khoom loj.
HomDDDCov khoom: Kev faib tawm thiab kev siv
DDDcov khoom siv dav siv hauv European thiab Asmeskas seismic engineering, nrog rau cov ntawv thov sib txawv raws li lawv cov kab lossis cov yam ntxwv tsis sib xws. Hauv qab no yog cov ntsiab lus ntawm cov khoom lag luam tseem ceeb, lawv cov yam ntxwv tseem ceeb, thiab cov neeg siv feem ntau:
1. Linear Devices (LD)
LDs yog qhov zoo tagnrho rau cov haujlwm uas xav tau cov qauv tsim qauv, muab kev hloov kho ruaj khov nrog tsawg kawg nkaus uas tsis yog-linear zog dissipation. Cov hom muaj xws li:
Linear Hlau Dampers
Cov yam ntxwv tseem ceeb:Ua los ntawm cov pa roj carbon steel los yog qis- alloy steel, cov dampers no nthuav tawm ze rau - zoo tshaj plaws linear quab yuam- tus cwj pwm hloov pauv yam tsis muaj theem tseem ceeb. Lawv cia siab rau elastic deformation los kho cov txheej txheem ntuj tsim, nrog lub zog tsis muaj zog dissipation muaj peev xwm.
Daim ntawv thov:Haum rau me me mus rau nruab nrab- cov qauv thav duab loj uas yuav tsum tau ua kom zoo dua qub nrog cov kev xav tau qis zog ntxiv, xws li seismic retrofitting ntawm cov tsev lag luam uas twb muaj lawm.
Cov ntsiab lus tseem ceeb: Cov ntaub ntawv yuav tsum ua tau raws li EN 10025 cov qauv, nrog rau kev ruaj ntseg zoo los ntawm kev sim hom.
Cov yam ntxwv tseem ceeb:Siv qis-damping elastomers (raws li Table 10 ntawm Nqe 8), cov dampers no muaj quasi - cov yam ntxwv ntawm linear damping thiab ruaj khov zoo. Lawv sib xyaw ua kom tawv nqaij hloov nrog lub zog me me dissipation, sib xws nrog cov qauv tsim tawm.
Daim ntawv thov:Qhov zoo tshaj plaws rau cov ntaub thaiv phab ntsa, cov cuab yeej siv hauv paus, thiab cov khoom siv tawv tawv hloov kho hauv cov tsev nyob rau thaj tsam nruab nrab seismic nrog rau qhov kub thiab txias.
Ua raws li qhov tseem ceeb:Dynamic shear testing yuav tsum tau kuaj xyuas kev ua tau zoo, nrog rau cov khoom siv tsis sib txawv (vim qhov khoom siv, qhov kub thiab txias, thiab lwm yam) ua tau raws li cov kev txwv hauv Table 4 ntawm Nqe 6.
Load-Cov kabmobBuckling{0}}Txoj hlua khi (BRBs)
Cov yam ntxwv tseem ceeb:Classified liDDDmuab damping ntxiv, cov noBRBsua qhov tseem ceeb ntawm cov kab hluav taws xob-cov kabmob thiab cov yam ntxwv nruj nrog lub zog tsis muaj zog dissipation. Cov khoom siv tseem ceeb yog siab - lub zog steel (EN 10083), thiab lub tes tsho tiv thaiv cov tub ntxhais buckling kom ntseeg tau tias muaj zog sib xws thiab muaj peev xwm compression.
Daim ntawv thov:Lateral quab yuam- tawm tsam cov kab ke hauv siab-nce steel ncej thiab loj- ncua kev sib txuas, qhov twg ob qho tib si thauj khoom- cov kabmob muaj peev xwm thiab cov cuab yeej ua kom zoo tshaj plaws yog xav tau.
Cov ntsiab lus tseem ceeb ntawm kev ua raws: hom kev xeem yuav tsum suav nrog cov kab ke sib txuas, nrog rau cov khoom seem uas tau txais los ntawm SLS cov cai.
2. Nonlinear Devices (NLD)
NLDs yog qhov tseem ceeb rau siab -seismic- cheeb tsam siv zog, siv zog tsis muaj zog los ua kom muaj zog seismic tseem ceeb. Lawv xav tau cov qauv tsim qauv uas tsis yog-linear thiab muaj nyob rau hauv ntau yam kev teeb tsa:
Cov yam ntxwv tseem ceeb:Tsim los ntawm qis-yield steel (piv txwv li, LY100, LY160, LY225) uas tsis tshua muaj zog thiab siab ductility. Lub zog- txav nkhaus qhia tau hais tias tus cwj pwm bilinear sib txawv, nrog cov ncej ruaj khov- tawm los khov thiab zoo heev cyclic zog dissipation.
Subtypes: Shear- hom, khoov- hom, thiabaxial{0}}yielding dampers,adaptable rau qhov sib txawv installation qhov chaw thiab quab yuam yuav tsum tau.
Daim ntawv thov:Tshiab lub tsev seismic tsim thiab uas twb muaj lawm lub tsev retrofitting, tshwj xeeb tshaj yog nyob rau hauv siab -seismic- siv zones rau thav duab thiab shear phab ntsa.
Ua raws li qhov tseem ceeb:Cov ntaub ntawv xav tau monotonic nro thiab kev ntsuas kev ua haujlwm cyclic. Tom qab kev laus zuj zus (14 hnub ntawm 70 degree), kev hloov pauv yuav tsum tsis pub tshaj 20%.
Cov yam ntxwv tseem ceeb: Lub zog dissipationyog ua tiav los ntawm cov txheeb ze zawv zawg ntawm qhov chaw tiv tauj, nrog lub voj voos hysteretic quab yuam- txav nkhaus (muaj zog tsis muaj zog). Kev sib txhuam coefficient yog ruaj khov, thiabzog dissipationyog ncaj qha ntsig txog kev hloov pauv amplitude. Lawv tsis cia siab rau cov khoom siv tawm los, ua kom lub neej ua haujlwm ntev thiab kev saib xyuas tsawg.
Subtypes: Phaj -type, cylindrical - hom, thiabspherical kev sib txhuam dampers, haum rau ntau- cov kev xav tau hloov chaw.
Daim ntawv thov:Ntev- txuas txuas, loj- ncua chaw ntau pob, siab- cov qauv nce, thiab lwm cov haujlwm uas xav tau kev hloov pauv loj. Qhov zoo tshaj plaws rau cov xwm txheej uas xav tau ntev - lub sij hawm ruaj khov lub zog dissipation thiab kev saib xyuas qis, xws li nuclear fais fab nroj tsuag auxiliary chaw.
Ua raws li qhov tseem ceeb:Ntev - yuav tsum tau kuaj kev sib txhuam lub sij hawm kom paub tseeb tias hnav ruaj khov. Qhov piv ntawm sab sauv mus rau qis qis ntawm cov khoom siv rau cov khoom siv hlau yuav tsum tsis pub tshaj 1.4.
Kev tshem tawm -Amplified Dampers
Cov yam ntxwv tseem ceeb:Kev sib xyaw ua ke ntawm cov tshuab ua kom nrov nrov (piv txwv li, toggle, txiab, iav), cov dampers no nthuav tawm cov qauv me me (3-4 zaug) los txhim khozog dissipationefficiency nyob rau hauv me me - deformation scenarios, nthuav tawm muaj zog nonlinearity.
Txoj Cai Ua Haujlwm:Toggle braces, txiab trusses, los yog iav- khib mechanisms amplify inter- dab neeg tsiv teb tsaws, xa cov amplified xaav mus rau sab hauv damping ntsiab (xws li, qis-yield steel cores, kev sib txhuam Cheebtsam) kom ua tau "me me, loj zog dissipation."
Daim ntawv thov:Cov qauv nrog me me rau sab deformation, xws li shear phab ntsa, cov qauv raj, thiab cov nroj tsuag tsis muaj zog. Kuj tsim nyog rau tej yaam num uas yuav tsum tau muaj zog txaus dissipation thaum muaj av qeeg me.
Ua raws li cov ntsiab lus tseem ceeb: Lub zog thiab kev ruaj ntseg ntawm lub tshuab amplification yuav tsum raug txheeb xyuas. Cyclic xeem ntawm 25%, 50%, thiab 100% ntawm qhov siab tshaj plaws yuav tsum tau hloov.
Lub cim xeeb Alloy (SMA) Dampers
Cov yam ntxwv tseem ceeb:Siv cov duab nco alloys (piv txwv li, Ni-Ti alloys), cov dampers dissipate lub zog thiab ua tiav nws tus kheej- nruab nrab ntawm kev hloov pauv theem (martensite rau austenite). Lub zog-txoj kev hloov pauv qhia tau hais tias tus cwj pwm tsis zoo ntawm hysteretic nrog kev hloov pauv tsawg kawg nkaus.
Txoj Cai Ua Haujlwm:Thaum av qeeg, SMA cov xov hlau / cov kab tuav tau ua cov yas deformation (martensitic transformation) raudissipate zog. Tom qab- av qeeg, cov khoom cia li rov qab los rau nws cov duab qub los ntawm kev hloov mus rau theem, txo qis cov khoom seem ntawm qhov chaw.
Daim ntawv thov:Cov vaj tsev keeb kwm (yuav tsum tau tshaj tawm tsawg kawg nkaus - av qeeg puas tsuaj), cov cuab yeej cuab yeej cuab tam, thiab txuas txuas txuas txuas txuas ntxiv. Zoo tagnrho rau tej yaam num tseem ceeb ntawm ob lub zog dissipation thiab tus kheej - muaj peev xwm nyob nruab nrab.
Cov ntsiab lus tseem ceeb ntawm kev ua raws: Kev ntsuam xyuas rau theem kev hloov pauv yam ntxwv (DSC), monotonic tensile tsis ua haujlwm, thiab kev ua haujlwm cyclic yuav tsum tau ua, npog cov kev pabcuam kub thiab cov nqi strain. Cov ntaub ntawv yuav tsum ua tau raws li cov qauv European uas twb muaj lawm.
Kev txiav txim siab tseem ceeb rau cov neeg siv European thiab Asmeskas
Standard Alignment:Xyuas kom meejDDDcov khoom ua raws li EN15129 Clause 6 thiab cov qauv seismic hauv zos (xws li Eurocode 8 hauv Tebchaws Europe, ASCE 7 hauv Tebchaws Meskas) rau kev hla - tej yaam num ciam teb.
Modeling Compatibility:Xaiv LDs rau cov qauv qauv tsim qauv thiab NLDs rau cov qauv uas tsis yog-linear los xyuas kom meej qhov kev ntsuam xyuas seismic teb.
Quality Assurance:Ua ntej cov khoom lag luam nrog ua tiav cov ntawv pov thawj xeem thiab cov txheej txheem FPC nruj kom lav qhov kev ua tau zoo sib xws hauv kev tsim khoom loj.
Application Specification:Sib piv DDD hom rau cov yam ntxwv ntawm cov qauv (xws li, kev xav tau kev hloov pauv, qhov tawv nqaij) thiab ib puag ncig (xws li, qhov kub thiab txias, kev pheej hmoo corrosion) txhawm rau txhim kho seismic kev ua tau zoo.
SEO Cov ntsiab lus
EN15129 Tshooj 6,Displacement Dependent Devices (DDD), linear devices (LD), nonlinear devices (NLD),seismic dampers, hlau yield dampers, kev sib txhuam dampers, zoo li nco alloy dampers,buckling -txoj hlua khiEuropean seismic qauv, EN 1998,seismic retrofitting, structural seismic tsim.
