Kev cuam tshuam ntawm Basalt Fiber Reinforced Materials ntawm Seismic Performance of Buildings
1. Txhim kho cov qauv tsim muaj zog thiab nruj
High Tensile Strength: Lub zog tensile ntawm basalt fibers tuaj yeem ncav cuag 3000-4800 MPa, siab dua li cov hlau zoo tib yam (li 400-600 MPa). Qhov no zoo heev txhim khu lub tensile thiab shear lub zog ntawm nkig cov ntaub ntawv xws li pob zeb thiab masonry, txo kev pheej hmoo ntawm tawg nyob rau hauv seismic loads.
Moderate Elastic Modulus: Lub elastic modulus ntawm basalt fibers (80-110 GPa) nyob nruab nrab ntawm cov hlau (200 GPa) thiab carbon fiber (200-400 GPa). Qhov no muab kev txhim kho rigidity tsis ua rau nkig tsis ua hauj lwm vim kev nruj heev.
2. Txhim khu kev ua haujlwm zoo
Txhim kho Ductility: Cov qauv pob zeb ua tau zoo muaj qhov tsis zoo ductility thiab ua rau muaj qhov tsis zoo thaum av qeeg. Basalt Fiber ntaus, raws li kev txhawb nqa, tuaj yeem cuam tshuam cov kab nrib pleb thiab ncua lawv txoj kev nthuav dav, tso cai rau cov txheej txheem kom muaj ntau dua deformation ua ntej tsis ua hauj lwm thiab nqus ntau zog seismic.
Seismic Joint Reinforcement: Wrapping lossis Bonding bfrp ua ntawm cov chaw tseem ceeb xws li kab-kem pob qij txha thiab cov phab ntsa shear tuaj yeem txhim kho lub peev xwm shear thiab deformation peev xwm, tiv thaiv tsis ua haujlwm vim kev ntxhov siab.
3. Muaj peev xwm ua kom muaj zog tawg
Zog Dissipation: Thaum lub sij hawm thauj khoom, BFRP cov ntaub ntawv dissipate zog los ntawm interfacial kev sib txhuam ntawm fibers thiab cov matrix, nrog rau fiber ntau deformation, txo cov kev puas tsuaj ntawm seismic zog ntawm cov qauv.
Yam ntxwv Damping: Basalt fiber ntau Composites muaj qee qhov damping piv, uas tuaj yeem txo cov qauv kev co amplitude thiab txo cov teebmeem resonance.
4. Txo qhov hnyav ntawm tus qauv
Lightweight Properties: Basalt fibers muaj qhov ntom ntom (li 2.6-2.8 g / cm³), tsuas yog ib feem peb ntawm cov hlau. Hloov ib feem ntawm steel reinforcement nrog BFRP los yog siv nws los ua cov khoom siv dag zog tuaj yeem txo qhov hnyav ntawm lub tsev, txo qis seismic inertial rog. Qhov no tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau cov tsev siab siab lossis kev rov ua dua tshiab ntawm cov qauv qub.
5. Corrosion Resistance thiab Durability
High Corrosion Resistance: Basalt fibers yog resistant rau acids, alkalis, kub kub, thiab noo noo, ua rau lawv haum rau corrosive ib puag ncig xws li ntug hiav txwv dej thiab tshuaj nroj tsuag. Lawv qhov kev ua tau zoo nyob rau lub sijhawm ntev tiv thaiv kev ua haujlwm ntawm seismic vim yog cov khoom siv corrosion.
Tus Nqi Them Tsawg: Piv rau cov khoom siv hlau ib txwm siv, BFRP tsis tas yuav muaj kev tiv thaiv corrosion ntau zaus, ua rau cov nqi qis dua.
6. Daim ntawv thov thiab cov xwm txheej
Pob Tawb Reinforcement: Ntxiv tws basalt fibers (piv txwv li, BFRC) rau pob zeb los yog siv BFRP tuav los hloov steel reinforcement.
Structural Strengthening: Bonding BFRP nplooj ntawv lossis daim hlau los txhawb cov kab, kab, phab ntsa, thiab lwm yam, txhim kho seismic cov ntsiab lus tsis muaj zog.
Composite Structures: Sib txuas BFRP nrog cov hlau lossis pob zeb los tsim cov txheej txheem hybrid, ntsuas lub zog thiab ductility.
7. Cov kev txwv
Cov nqi siab dua: Tam sim no, tus nqi tsim khoom ntawm BFRP yog siab dua li cov hlau zoo tib yam tab sis qis dua carbon fiber (CFRP).
Cov Ntaub Ntawv Ua Haujlwm Ntev Ntev: Kev tshawb fawb ntxiv yog xav tau ntawm kev ua haujlwm ntev thiab qaug zog ntawm BFRP nyob rau lub sijhawm ntev (tshaj 50 xyoo).
Cov Cai Tsim Tsis tiav: Qee lub tebchaws tseem tsis tau koom nrog BFRP rau hauv seismic design codes, vam khom rau kev sim thiab kev tsim vaj tsev.
Engineering Case thiab Kev Tshawb Fawb
Tom qab-Hanshin av qeeg Retrofitting hauv Nyiv: BFRP tau siv los kho cov txuas hniav thiab cov vaj tse, uas qhia tau tias muaj txiaj ntsig zoo.
Tom qab-Wenchuan Av qeeg rov tsim kho hauv Suav teb: Qee lub tsev kawm ntawv thiab tsev kho mob tau rov kho dua nrog BFRP txhawm rau txhim kho seismic tiv thaiv.
Kev Tshawb Fawb Kev Tshawb Fawb: Cov kev tshawb fawb qhia tias BFRP-txhim kho cov pob zeb muaj peev xwm ua tiav 30% -50% nce hauv kev xaav ductility thiab 20% -40% kev txhim kho hauv lub zog dissipation muaj peev xwm.
Xaus
Basalt fiber ntau cov ntaub ntawv txhawb nqa tseem ceeb txhim kho cov seismic kev ua tau zoo ntawm cov tsev los ntawm kev txhim kho lub zog, ductility, thiab lub zog dissipation muaj peev xwm. Lawv yog tshwj xeeb tshaj yog haum rau high-seismic-siv cheeb tsam, corrosive ib puag ncig, los yog scenarios xav tau lub teeb yuag. Nrog txo tus nqi thiab txhim kho cov qauv tsim, daim ntawv thov BFRP hauv seismic engineering muaj kev cia siab dav.
