Fiberglass Reinforced Polymer Bars
Isingeniso Esiningiliziwe
I-Fiber reinforced composites (FRP) kuzinhlelo zokusebenza zobunjiniyela bomphakathi ngokubaluleka "kwezinkinga zokuqina kwesakhiwo nakwezinye izimo ezikhethekile zokusebenza ukuze zidlale izici zayo ezilula, amandla aphezulu, izici ze-anisotropic," kuhlanganiswe nezinga lamanje lobuchwepheshe besicelo kanye nezimo zemakethe, ochwepheshe bezimboni bakholelwa ukuthi ukusetshenziswa kwayo kuyakhethwa. 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 i-Pallet (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 aqinile, isisindo esincane kanye nenzuzo esetshenziswa kalula, ukufakwa kwe-GF njengoba ikhona, isetshenziswa futhi isetshenziswa njenge-GF. izinduku zamaphrojekthi we-geotechnical. Njengamanje, imigoqo ye-GFRP isetshenziswa kakhulu njengama-anchor rods kubunjiniyela be-geotechnical.
2. Ubuchwepheshe bokuqapha okuhlakaniphile kwebha ye-GFRP yokuzingenisa
Izinzwa ze-fiber grating zinezinzuzo eziningi eziyingqayizivele 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 ekukhiqizeni. I-LU-VE GFRP Smart Bar iyinhlanganisela yemigoqo ye-LU-VE GFRP 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 kwezimo zemvelo ezinzima.
3. Ubuchwepheshe bokuqinisa ukhonkolo obusika isihlangu
Ukuze uvimbele ukungena kwamanzi noma inhlabathi ngaphansi kwesenzo sokucindezelwa kwamanzi ngenxa yokukhishwa okufakelwayo kokuqiniswa kwensimbi kukhonkolo esakhiweni esibiyelwe esingaphansi komhlaba, ngaphandle kodonga lokumisa amanzi, abasebenzi kufanele bagcwalise inhlabathi eminyene noma ngisho nokhonkolo ocacile. Ukusebenza okunjalo ngokungangabazeki kwandisa umfutho wabasebenzi kanye nesikhathi somjikelezo wokumbiwa komhubhe ongaphansi komhlaba. Isixazululo ukusebenzisa i-GFRP bar yekheji esikhundleni sekheji lensimbi, elingasetshenziswa esakhiweni sikakhonkolo sendawo ebiyelwe esitimeleni, hhayi nje kuphela amandla okuthwala angakwazi ukuhlangabezana nezidingo, kodwa futhi ngenxa yokuthi isakhiwo sikakhonkolo sebha ye-GFRP sinenzuzo yokuthi singasikwa emshinini wesihlangu (TBMs) sidabula indawo ebiyelwe, kususe kakhulu isidingo sokusebenza kwabasebenzi kanye nokukhipha amathini. ukusheshisa ijubane ukwakhiwa kanye nokuphepha.
4. Ubuchwepheshe bokusebenzisa umzila we-GFRP ibha ETC
Izindlela ezikhona ze-ETC zikhona ekulahlekelweni kolwazi lwamavesi, ngisho nokubanjwa okuphindaphindiwe, ukuphazanyiswa komgwaqo ongumakhelwane, ukulayishwa ngokuphindaphindiwe kolwazi lokuthengiselana kanye nokwehluleka kokuthengiselana, njll., ukusetshenziswa kwemigoqo ye-GFRP engeyona i-magnetic kanye ne-non-conductive esikhundleni sensimbi ku-pavement kunganciphisa lesi simo.
5. Ibha ye-GFRP yendawo egandayiwe kakhonkolo eqinisiwe eqhubekayo
I-pavement kakhonkolo eqinisiwe 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 somgandayo, kokubili ukuze kunqotshwe ukungalungi kokugqwala okulula kwensimbi, kodwa futhi nokugcina izinzuzo zokugcizelela ngokuqhubekayo ngaphakathi kwesakhiwo esiqinile, kodwa futhi kunciphisa ukuqina kokhonkolo.
6. Ubuchwepheshe besicelo se-GFRP ekwindla nasebusika se-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 girder-slab esivame ukusetshenziswa kumatheminali echweba, ngenxa yesisindo saso kanye nomthwalo omkhulu esiwuthwalayo, singaphansi kwezikhathi zokugoba ezinkulu kanye namandla okugunda ngesikhathi sebhande le-longitudinal kanye nokusekela, okubangela ukuqhekeka. 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 zesikhumulo sezindiza nezempi izinto ezilwa nokugxambukela kwe-radar, izikhungo zokuhlola impahla yezempi ebucayi, izindonga zikakhonkolo, iyunithi yokunakekelwa kwempilo okokusebenza kwe-MRI, indawo yokuhlola i-geomagnetic, izakhiwo ze-nuclear fusion, imibhoshongo yemiyalo yesikhumulo sezindiza, njll., ingasetshenziswa esikhundleni semigoqo yensimbi, imigoqo yethusi, njll. Imigoqo ye-GFRP njengento yokuqinisa ukhonkolo.
(2) Izixhumi zephaneli yodonga lwamaSandwich
Iphaneli yodonga elisetshenziselwe i-precast yakhiwe 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.
