Fiberglass Reinforced Polymer Bars
Isingeniso Esiningiliziwe
I-Fiber reinforced composites (FRP) kuzinhlelo zokusebenza zobunjiniyela bomphakathi ngokubaluleka "kwezinkinga zokuqina kwesakhiwo nakwezinye izimo ezikhethekile zokusebenza ukuze idlale izici zayo ezingasindi, amandla aphezulu, izici ze-anisotropic," kuhlanganiswe nezinga lamanje lobuchwepheshe besicelo nezimo zemakethe, ochwepheshe bezimboni. kholelwa ukuthi ukusetshenziswa kwayo kuyakhetha. Esakhiweni sikakhonkolo sokusika isihlangu sesitimela esihamba ngaphansi, izinga eliphezulu lemithambeka yomgwaqo onguthelawayeka kanye nokusekelwa komhubhe, ukumelana nokuguguleka kwamakhemikhali neminye imikhakha kubonise ukusebenza okuhle kakhulu kwesicelo, ngokwandayo okwamukelwa yiyunithi yokwakha.
Ukucaciswa Komkhiqizo
Ubukhulu obujwayelekile busukela ku-10mm kuye ku-36mm. Amadayamitha ajwayelekile anconyiwe emigoqo ye-GFRP ngu-20mm, 22mm, 25mm, 28mm kanye no-32mm.
| Iphrojekthi | Amabha we-GFRP | Induku ye-grouting engenalutho (OD/ID) | |||||||
| Ukusebenza/Imodeli | BHZ18 | BHZ20 | BHZ22 | BHZ25 | BHZ28 | BHZ32 | BH25 | BH28 | BH32 |
| Ububanzi | 18 | 20 | 22 | 25 | 28 | 32 | 25/12 | 25/12 | 32/15 |
| Izinkomba zobuchwepheshe ezilandelayo azikho ngaphansi | |||||||||
| Amandla okuqina komzimba wenduku (KN) | 140 | 157 | 200 | 270 | 307 | 401 | 200 | 251 | 313 |
| Amandla e-Tensile (MPa) | 550 | 550 | 550 | 550 | 500 | 500 | 550 | 500 | 500 |
| Amandla e-Shear (MPa) | 110 | 110 | |||||||
| I-Modulus of elasticity (GPA) | 40 | 20 | |||||||
| I-Ultimate tensile strain (%) | 1.2 | 1.2 | |||||||
| Amandla e-nut (KN) | 70 | 75 | 80 | 90 | 100 | 100 | 70 | 100 | 100 |
| Umthamo wokuthwala ipalethi (KN) | 70 | 75 | 80 | 90 | 100 | 100 | 90 | 100 | 100 |
Amazwana: Ezinye izidingo kufanele zithobelane nezinhlinzeko zezinga lembonini elithi JG/T406-2013 “I-Glass Fiber Reinforced Plastic for Civil Engineering”
Ubuchwepheshe Besicelo
1. Ubunjiniyela be-Geotechnical obunobuchwepheshe bokusekela ihange le-GFRP
Umhubhe, umthambeka kanye namaphrojekthi wesitimela esihamba ngaphansi komhlaba azobandakanya i-geotechnical anchoring, i-anchoring ngokuvamile isebenzisa insimbi enamandla aqinile njengezinduku okusetshenzwa kulengwa kuzo, ibha ye-GFRP esesimweni esibi sesikhathi eside sokwakheka komhlaba inokumelana nokugqwala okuhle, ibha ye-GFRP esikhundleni sezinti zehange zensimbi ezingenasidingo sokwelashwa kokugqwala. , amandla aqinile aphezulu, isisindo esincane futhi kulula ukwenza, izinzuzo zokuhamba kanye nokufaka, okwamanje, ibha ye-GFRP isetshenziswa ngokwandayo njengehange. izinduku zamaphrojekthi we-geotechnical. Njengamanje, imigoqo ye-GFRP isetshenziswa kakhulu njengama-anchor rod kubunjiniyela be-geotechnical.
2. Ubuchwepheshe bokuqapha okuhlakaniphile kwebha ye-GFRP yokuzingenisa
Izinzwa ze-fiber grating zinezinzuzo eziningi ezihlukile kunezinzwa zamandla endabuko, njengesakhiwo esilula sekhanda elizwayo, usayizi omncane, isisindo esilula, ukuphindaphinda okuhle, ukuphazamiseka kwe-anti-electromagnetic, ukuzwela okuphezulu, ukwakheka okuguquguqukayo kanye nekhono lokufakelwa kubha ye-GFRP. ohlelweni lokukhiqiza. I-LU-VE GFRP Smart Bar iyinhlanganisela ye-LU-VE GFRP imigoqo kanye nezinzwa ze-fiber grating, ezinokuqina okuhle, izinga elihle kakhulu lokusinda kokuthunyelwa kanye nezici zokudlulisa ubunzima ezibucayi, ezifanele ubunjiniyela bomphakathi neminye imikhakha, kanye nokwakhiwa kanye nenkonzo ngaphansi konya. izimo zemvelo.
3. Ubuchwepheshe bokuqinisa ukhonkolo obusika isihlangu
Ukuze uvimbele ukungena kwamanzi noma inhlabathi ngaphansi kwesenzo sokucindezelwa kwamanzi ngenxa yokususwa okwenziwa kokuqina kwensimbi kukhonkolo esakhiweni esibiyelwe esingaphansi komhlaba, ngaphandle kodonga lokumisa amanzi, abasebenzi kufanele bagcwalise inhlabathi eminyene noma ngisho nokhonkolo ongenalutho. . Ukusebenza okunjalo ngokungangabazeki kwandisa amandla okusebenza kwabasebenzi kanye nesikhathi somjikelezo wokumbiwa komhubhe ongaphansi komhlaba. Isixazululo ukusebenzisa i-GFRP bar yekheji esikhundleni sekheji lensimbi, elingasetshenziswa esakhiweni sikakhonkolo sendawo ebiyelwe esitimeleni esingaphansi komhlaba, hhayi kuphela umthamo wokuthwala ongahlangabezana nezidingo, kodwa futhi nangenxa yokuthi isakhiwo sikakhonkolo sebha ye-GFRP sine- inzuzo yokuthi ingasikwa emshinini wehawu (TBMs) odabula indawo ebiyelwe, okuqeda kakhulu isidingo sokuthi abasebenzi bangene baphume njalo emigodini yokusebenza, okungase ukusheshisa ijubane ukwakhiwa kanye nokuphepha.
4. Ubuchwepheshe bokusebenzisa umzila we-GFRP ibha ETC
Imizila ekhona ye-ETC ikhona ekulahlekeni kolwazi lwamaphaseji, ngisho nokubanjwa okuphindaphindiwe, ukuphazamiseka komgwaqo ongumakhelwane, ukulayishwa ngokuphindaphindiwe kolwazi lokwenziwayo kanye nokwehluleka kokuthengiselana, njll., ukusetshenziswa kwemigoqo ye-GFRP engeyona imagnetic nengeyona i-conductive esikhundleni sensimbi endaweni egandayiwe. inganciphisa lesi simo.
5. Ibha ye-GFRP yendawo egandayiwe kakhonkolo eqinisiwe eqhubekayo
I-pavement kakhonkolo eqiniswe ngokuqhubekayo (CRCP) enokushayela okunethezekile, umthamo wokuthwala okuphezulu, okuhlala isikhathi eside, ukugcinwa okulula nezinye izinzuzo ezibalulekile, ukusetshenziswa kwemigoqo yokuqinisa ingilazi ye-fiber (GFRP) esikhundleni sensimbi esetshenziswa kulesi sakhiwo sokugandaywa kwezinyawo, kokubili ukuze kunqotshwe ukungalungi kokulula ukugqwala kwensimbi, kodwa futhi nokugcina izinzuzo ze-pavement kakhonkolo eqinisiwe ngokuqhubekayo, kodwa futhi kunciphise ukucindezeleka ngaphakathi kwesakhiwo somgwaqo.
6. Ubuchwepheshe besicelo se-GFRP sokuwa nobusika be-anti-CI
Ngenxa yesimo esivamile se-icing yomgwaqo ebusika, ukukhishwa kukasawoti kungenye yezindlela ezonga kakhulu futhi eziphumelelayo, futhi ama-ion e-chloride ayimbangela eyinhloko yokugqwala kwensimbi eqinisayo endaweni egandaywe ngokhonkolo eqinisiwe. Ukusetshenziswa kokumelana nokugqwala okuhle kakhulu kwemigoqo ye-GFRP esikhundleni sensimbi, kungandisa impilo yomgwaqo.
7. Ibha ye-GFRP yobuchwepheshe bokuqinisa ukhonkolo wasolwandle
I-Chloride corrosion of steel reinforcement iyisici esibaluleke kakhulu esithinta ukuqina kwezakhiwo zikakhonkolo eziqinisiwe kumaphrojekthi asogwini. Isakhiwo esikhulu se-span-span girder-slab esivame ukusetshenziswa kumatheminali echweba, ngenxa yesisindo saso kanye nomthwalo omkhulu esiwuthwalayo, singaphansi kwezikhathi zokugoba ezinkulu kanye namandla okugunda ngesikhathi sebhande longitudinal kanye nasekusekeleni, okuthi ukuphenduka kudala imifantu. Ngenxa yesenzo samanzi olwandle, le migoqo yokuqinisa yasendaweni ingagqwala ngesikhathi esifushane kakhulu, okuholela ekuncipheni komthamo wokuthwala wesakhiwo sisonke, okuthinta ukusetshenziswa okuvamile kwesikhumulo semikhumbi noma ngisho nokuvela kwezingozi zokuphepha. .
Ububanzi bokusebenza:udonga lolwandle, isakhiwo sebhilidi elingasemanzini, ichibi le-aquaculture, izixhobo zokwenziwa, isakhiwo sekhefu lamanzi, idokhu elintantayo
njll.
8. Ezinye izinhlelo zokusebenza ezikhethekile zamabha e-GFRP
(1) Uhlelo lokusebenza olukhethekile lokuphazanyiswa kwe-Anti-electromagnetic
Izikhungo zezindiza nezempi zokulwa nokugxambukela kwe-radar, izikhungo ezibucayi zokuhlola impahla yezempi, izindonga zikakhonkolo, iyunithi yokunakekelwa kwempilo okokusebenza kwe-MRI, i-geomagnetic observatory, izakhiwo ze-nuclear fusion, imibhoshongo yemiyalo yesikhumulo sezindiza, njll., ingasetshenziswa esikhundleni sezinsimbi zensimbi, imigoqo yethusi, njll. Imigoqo ye-GFRP njengento yokuqinisa ukhonkolo.
(2) Izixhumi zephaneli yodonga lwamaSandwich
Iphaneli yodonga lwesangweji elifakwe ngaphambili lakhiwe ngamaphaneli amabili aseceleni kakhonkolo kanye nongqimba oluvikelayo phakathi nendawo. Isakhiwo samukela izixhumi ezintsha ezisanda kwethulwa ze-OP-SW300 ze-glass fibre reinforced composite material (GFRP) ngokusebenzisa ibhodi lokufaka elishisayo ukuze kuxhunywe amaphaneli amabili aseceleni kakhonkolo ndawonye, okwenza udonga lokufakwa okushisayo luqede ngokuphelele amabhuloho abandayo ekwakhiweni. Lo mkhiqizo awusebenzisi nje kuphela ukuthinta okungashisi kwe-LU-VE GFRP, kodwa futhi unikeza ukudlala okugcwele kumphumela ohlangene wodonga lwesemishi.
