Malunga noMbhali
UGqr. Liu Wei, uMlawuli we-R&D e-Ruifengyuan Stone
I-PhD kwiSayensi yeZinto eziBalulekileyo ngokuchwetheza kubuchwepheshe bokwenziwa kwamatye. Iphuhlise iindlela zokusebenza zemveliso ezixutyiweyo ezidibanisa ukukrola kwendabuko kunye nokuzisebenzela kwe-CNC kwiiprojekthi zokwakha ezingaphezu kwe-180. Ipapashe uphando malunga neepateni zokunxiba izixhobo ekuchwethezeni amatye kwiJournal of Materials Processing Technology.
Izinto ezibalulekileyo ze-TL;DR
- Iikholamu ezijikelezileyo nezikwere zisebenza imisebenzi eyahlukeneyo yesakhiwo kunye nembonakalo kwizakhiwo
- Ukusetyenziswa kwezinto, iindleko zokwenza, kunye nobunzima bokufakela kwahluka kakhulu phakathi kweendlela ezimbini zeekholamu
- Ii-odolo zeklasikhi zichaza ubungakanani obuthile beekholamu obuchaphazela isigqibo esijikelezayo nesikwere
- Ukwenziwa kwe-hybrid yanamhlanje kwenza zombini iimilo zisebenze kuzo zonke iintlobo zeprojekthi
Iikholamu ezijikelezileyo nezikwere: Ukukhetha iiMilo zeeNtsika zoYilo
Ukukhetha phakathi kweekholamu ezijikelezileyo nezikwere kuphakathi kwezigqibo ezibalulekileyo kuyilo lwelitye loyilo. Imilo yeekholamu inefuthe kukusasazwa komthwalo wesakhiwo, umbono obonakalayo wendawo, ubunzima bokwenziwa, kunye neendleko zeprojekthi iyonke. Iikholamu ezijikelezileyo ziye zalawula uyilo lwakudala ukusuka kwiitempile zamaRoma ukuya kwiipalazzo zeRenaissance, ngelixa iikholamu ezikwere kunye neepilaster zavela njengezinto ezahlukileyo kuyilo lwanamhlanje nolwanamhlanje. Ukuqonda ukurhwebelana kobugcisa kunye nobuhle phakathi kwezi zakhiwo zeekholamu kwenza ukuba kubekho iinkcukacha ezichanekileyo.
Iimpawu zesakhiwo seentsika zelitye ezijikelezileyo nezikwele
Iikholamu ezingqukuva zisasaza imithwalo exinzelelweyo ngokulinganayo kwicandelo lazo elijikelezayo, zisusa iindawo zoxinzelelo ezenzeka kwiikona zekholamu ezisikwere. Olu lwabiwo loxinzelelo olufanayo luvumela iikholamu zamatye ezingqukuva ukuba zixhase imithwalo ephezulu kancinci kuneekholamu zesikwere zommandla onqamlezileyo. Ikholamu engqukuva enobubanzi obuyi-400mm (indawo eyi-125,664mm²) inokuxhasa umthwalo oxinzelelweyo omalunga ne-8–12% ngaphezu kwekholamu yesikwere eyi-355mm (indawo eyi-126,025mm²) enobude obufanayo, ngokuyintloko kuba imo engqukuva ithintela ukunyuka koxinzelelo lwekona.
Iikholamu zelitye lesikwere zibonelela ngeengenelo zokumelana nokukhawuleza xa kusetyenzwa apho imithwalo esecaleni ibaluleke kakhulu. Ubuso obuthe tyaba beekholamu zesikwere bubonelela ngendawo yendalo yokuthwala imiqadi kunye neentambo zodonga, nto leyo eyenza kube lula ukunxibelelana kwezakhiwo ezikwiifreyimu.Iikholamu zamatye ezakhiwo kunye neenkolamkwizakhiwo zanamhlanje zikhethwa kakhulu ngokusekelwe kwiimfuno ezithile zesakhiwo kunokuba zikhethwe ngokwesiko lodwa.
I-Natural Stone Institute inika izikhokelo zoyilo lwezakhiwo zeekholamu zamatye kwizicelo zezakhiwo, ichaza umlinganiselo omncinci wobuncinci obahlukileyo phakathi kwejometri ezijikelezileyo nezikwere. Ububanzi be-radiation yekholamu ejikelezileyo bukhulu malunga ne-13% kunekholamu yesikwere yommandla olinganayo, okuvumela iikholamu ezijikelezileyo ezinde kancinci ngaphambi kokuba ukugoba kube yingxaki yoyilo.
Iindleko Zokwenziwa kunye Nokuthelekiswa Kobunzima
Iindleko zokwenza zahluke kakhulu phakathi kweekholamu zelitye eziziingqukuva neziziikwere. Iikholamu zesikwere azifuni zixhobo zinzima kangako kuba ubuso bazo obuthe tyaba bunokunqunyulwa ngeesarha zebhulorho eziqhelekileyo kunye nezixhobo zokujonga umphetho. Ikholamu yesikwere enemiphetho elula enee-chamfered ixabisa ngaphantsi ngama-20-35% ukwenza kunekholamu esiziikwere enommandla olinganayo onqamlezayo, ikakhulu kuba ukujika kwekholamu esiziikwere kufuna izixhobo ezikhethekileyo ze-lathe kunye nexesha elongezelelweyo lokuseta.
Iikholamu zelitye ezijikelezileyo zifuna ukujika nge-lathe okanye ukujika nge-CNC multi-axis. Ukujika nge-lathe yendabuko kuseyeyona ndlela ingabizi kakhulu yokwenza iikholamu ezijikelezileyo ngobuninzi, kunye nee-lathe zamatye zanamhlanje ezikwaziyo ukujika iikholamu ukuya kuthi ga kwiimitha ezi-6 ubude kunye nobubanzi obuyi-800mm. Ukujika nge-CNC kunika ukuguquguquka okukhulu kwiikholamu ezijikelezileyo ezithambileyo, ezifakwe i-flute, okanye ezifakwe i-entasis kodwa kwandisa ixesha lokuhlela kunye nokugaya nge-40-60% xa kuthelekiswa nokujika nge-cylindrical ethe tye.
Iikholamu zamatye zokuhombisa zezicelo zangaphakathi nangaphandlebaxhamla kwiindlela zokwenza izinto ezixutyiweyo. Uhlobo lwesiseko lunqunyulwa kusetyenziswa eyona ndlela isebenzayo, ngelixa iintloko kunye neziseko zokuhombisa zifumana ukuqoshwa ngesandla okanye nge-CNC kuxhomekeke kubunzima beenkcukacha ezichaziweyo. Le ndlela ilinganisa iindleko neemfuno zoyilo.
Imbono Ebonakalayo kunye Nokusebenzisana Kwendawo
Iikholamu ezijikelezileyo nezisikwere zenza amava ahlukeneyo ngokwendawo. Iikholamu ezijikelezileyo zibonakala zikhaphukhaphu ngokubonakalayo kunobunzima bazo bokwenyani kuba iindawo ezigobileyo zibamba ukukhanya kwiigradients ezichaza imo ngaphandle kwemigca yesithunzi enzima. Kwikholamu, iikholamu ezijikelezileyo zenza isigqi sokukhanya okutshintshisanayo kunye nesithunzi njengoko ababukeli behamba kwindawo, kunye nomsantsa obonakalayo phakathi kweekholamu otshintsha rhoqo.
Iikholamu zesikwere zibonisa ubukho obuqinileyo. Ubuso bazo obuthe tyaba kunye neekona ezibukhali zenza imigca yesithunzi ecacileyo egxininisa ukuma nkqo kunye nokucaca kwesakhiwo. Kwizakhiwo zanamhlanje, iikholamu zesikwere kunye neephaneli zepilaster ziqinisa ulungelelwano lwejometri.Iiphaneli zepilaster zokuhombisadibanisa ubunzima obubonakalayo beemilo zesikwere kunye nonyango lomphezulu wokuhombisa, udibanisa iilwimi zoyilo zakudala nezanamhlanje.
IUphando lweJiyoloji lwaseMelikaIzibalo zamatye ezibonisa ubungakanani bezinto zibonisa ukuba malunga ne-65% yeekholamu zamatye okwakha ezichazwe eMntla Melika zingqukuva, ngelixa iikholamu zesikwere kunye neepilaster zilawula iiprojekthi zokuvuselela zaseYurophu apho iintlobo zeepilaster zakudala zixhaphake kakhulu kwizakhiwo zembali.
Ubungakanani bolandelelwano lweClassical lweeKholamu ezijikelezileyo
Ii-odolo zezakhiwo zakudala zichaza ubungakanani beekholamu ezithile eziye zakhokela uyilo kangangeminyaka engaphezu kwamawaka amabini. Udidi lweDoric luchaza ukuphakama kweekholamu njengobukhulu obuphindwe ka-4-7 kunobubanzi obuphantsi. Iikholamu ze-Ionic ziphakama ziye kwiidayamitha ezi-8-9, kwaye iikholamu zaseCorinthian zifikelela kwiidayamitha ezi-9-10. Ezi milinganiselo zisebenza ngokukodwa kwiikholamu ezijikelezileyo, ezazingumgangatho kuyilo lwamaGrike namaRoma. Iikholamu zesikwere kwiimeko zakudala zihlala ziphathwa njengee-pilasters ezinamathele kumphezulu wodonga endaweni yezinto ezizimeleyo zokwakha.
Ukutshaya iikholamu kuchaphazela ngakumbi ubume obubonakalayo beekholamu ezijikelezileyo. Ukutshaya—imijelo ethe nkqo esikwe kwi-shaft yekholamu—kongeza ubume obubamba ukukhanya kwaye bugxininise ukuma nkqo. Iikholamu zeDoric zihlala zineefuli ezingama-20 ezahlulwe zii-arris ezibukhali, ngelixa iikholamu zeIonic nezeCorinthian zineefuli ezingama-24 ezahlulwe zii-flat fillets. Ukutshaya kongeza i-15–25% kwixesha lokwenziwa kweekholamu ezijikelezileyo kwaye kufuna izixhobo ezichanekileyo ukugcina ubunzulu beefuli kunye nesithuba esihambelanayo kubude bekholamu.
II-ASTM C1721umgangatho ubonelela ngeenkqubo zokuqinisekisa ukuchaneka kobukhulu bezinto eziqingqiweyo zokwakha, kuquka nejiyometri yokutyibiliza ikholamu. Iiprojekthi ezichaza iikholamu ezityibiliziweyo kufuneka zibandakanye iinkqubo zokuqinisekisa kwinqanaba loyilo ukuqinisekisa ukuba ubunzulu beflute, ububanzi, kunye nesithuba zihambelana nokunyamezelana okuchaziweyo.
Ukhetho lweKholamu eKhethekileyo kwiSicelo
Umxholo weprojekthi uhlala uyalela ukukhethwa kwemilo yeekholamu. Ii-portico zokungena kunye nee-facades ezingaphambili kwetempile zifuna iikholamu ezijikelezileyo ukuze zibe yinyani yakudala. Iikholamu zangaphakathi ze-lobby kwizakhiwo zorhwebo zihlala zisebenzisa iifom zesikwere ukuze kube lula ukudibanisa nezahlulo zodonga kunye neenkqubo zodonga lweglasi. Iiprojekthi ze-villa zokuhlala zahlulwe ngokulinganayo phakathi kweekholamu ezijikelezileyo nezikwere, kunye neekholamu ezijikelezileyo ezikhethwayo kwiinkxaso ze-portico ezizimeleyo kunye nee-pilasters zesikwere ezichazwe kwiizicelo ezidityanisiweyo zodonga.
Iimfuneko zesakhiwo zikwakhokela ekukhetheni. Iikholamu ezixhasa imithwalo yenqaku evela kwiimitha ezingaphezulu—njengakwiindawo zorhwebo ezivulekileyo—zisebenza ngcono njengeenxalenye ezijikelezileyo kuba zisasaza umthwalo ngokulinganayo. Iikholamu ezichaza iikona zegumbi okanye iindawo zokudibanisa udonga ngokwendalo zifanela iiprofayili zesikwere kuba ubuso besikwere buhambelana neeplani zodonga ezikufutshane.
Iikholamu zelitye zendalo zokwakhaingachazwa nokuba yifomati engqukuva okanye yesikwere ngokubalwa kobunjineli bolwakhiwo olufanelekileyo. Ukukhetha phakathi kweemilo ekugqibeleni kuxhomekeke kulwimi loyilo, umthwalo wolwakhiwo, kunye neeparamitha zebhajethi zeprojekthi nganye ethile.
Izinto ekufuneka ziqwalaselwe xa kufakwa iiMilo ezahlukeneyo zeKholamu
Iindlela zokufakela zahlukile kwiimilo zeekholamu. Iikholamu ezijikelezileyo zifuna ii-shims ezigobileyo kunye neesali ezidityanisiweyo kwisiseko sokudibanisa ukuthintela ukulayishwa kwenqaku kwilitye. Iikholamu ezisikwere zamkela iipleyiti ezisemgangathweni ezisicaba kunye neenkcukacha ezilula zokudibanisa. Kwiikholamu ezizimeleyo, iikholamu ezijikelezileyo zihlala zakhiwe ngokulungiswa okwethutyana ukugcina ulungelelwaniso oluthe nkqo de kube kugqityiwe unxibelelwano olusisigxina. Iikholamu ezisikwere zilungelelaniswa ngokulula kuba ubuso bazo obusicaba bubonelela ngemigangatho yesalathiso sokuqinisekisa i-plumb.
Zombini iimilo zekholamu zifuna iziseko ezenzelwe indlela ethile yomthwalo. Iziseko zekholamu ezijikelezileyo zihlala zijikelezile okanye zilingana ne-octagonal, zihambelana neprofayili yekholamu. Iziseko zekholamu yesikwere zisebenzisa iziseko zesikwere okanye ezinxantathu ezidityaniswe ngokulula neenkqubo zesiseko ezikufutshane. Iindleko zesiseko zokuxhasa imithwalo efanayo ziyafana phakathi kweempawu.
Imibuzo ebuzwa qho
Yeyiphi ebiza kakhulu ukuyenza: iikholamu zamatye ezingqukuva okanye ezisikwere?
Iikholamu zelitye ezijikelezileyo zibiza ngaphezulu kwama-20–35% kuneekholamu zesikwere ezifanayo ngenxa yeemfuno zezixhobo ze-lathe ezikhethekileyo kunye namaxesha amade oomatshini bokuchwetheza. Iikholamu ezijikelezileyo ezine-flute zongeza enye i-15–25% kwixabiso lokwenziwa. Iikholamu zesikwere zinokwenziwa ngezixhobo eziqhelekileyo zokusarha iibhulorho, nto leyo enciphisa iindleko zokuseta kunye nezokwenza.
Ngaba iikholamu zesikwere zingaxhasa imithwalo efanayo neekholamu ezijikelezileyo?
Iikholamu ezingqukuva zommandla olinganayo onqamlezayo zixhasa imithwalo yokuxinzelela ephezulu nge-8–12% ngenxa yokusasazwa koxinzelelo olufanayo. Nangona kunjalo, iikholamu zesikwere zibonelela ngokumelana okungcono kwemithwalo esecaleni. Kwiinkqubo ezininzi zokwakha, zombini iimilo zinokwakhiwa ukuze zihlangabezane neemfuno zesakhiwo ngokulungelelanisa ubukhulu becandelo elinqamlezayo ngokufanelekileyo.
Ingakanani ubude obuphezulu bekholamu yelitye eneqhekeza elinye?
Iikholamu zamatye ezineqhekeza elinye zihlala zilinganiselwe kwiimitha ezi-6 ngobukhulu beebhloko zekwari kunye nemida yokuhamba. Iikholamu ezinde kuneemitha ezi-6 zifuna iidrama ezipakishwe ngeepini eziphakathi okanye iidowels ezidibanisa icandelo ngalinye. Icandelo ngalinye ledrama lisikiwe ukuze lihambelane namacandelo akufutshane ngokuchanekileyo kusetyenziswa izixhobo ze-CNC zokuchonga.
Ngaba kunzima ukugcina iikholamu ezineefluti kuneekholamu ezigudileyo?
Iikholamu ezirhuqwayo ziqokelela uthuli kunye nokungcola okusingqongileyo kwimijelo, nto leyo efuna ukucocwa okuneenkcukacha. Ibhrashi ethambileyo eqhotyoshelweyo kwinkqubo yokuhlamba enoxinzelelo oluphantsi icoca ngokufanelekileyo iindawo ezirhuqwayo ngaphandle kokonakalisa ilitye. I-flute ayichaphazeli ukuqina kwesakhiwo kwaye inokufihla ukuguguleka okuncinci komphezulu ngcono kuneenkholamu ezigudileyo ezikhazimlayo.
Ngaba iikholamu ezijikelezileyo okanye ezisikwere zisebenza ngcono kwiinkqubo zokugquma ngamatye?
Iikholamu zesikwere zamkela ukugqunywa ngamatye ngokulula kuba ubuso ngabunye obuthe tyaba bunokugqunywa ngamatye aqhelekileyo anamathele kwii-engile zenkxaso zesiqhelo. Ukugqunywa kweekholamu ezijikelezileyo kufuna iiphaneli zamatye ezigobileyo okanye iziqwenga ze-segmental cladding ezonyusa ubunzima bokwenziwa kwaye zibize ngama-30-50% xa kuthelekiswa nokugqunywa kweekholamu zesikwere.
Ziziphi iintlobo zamatye eziqheleke kakhulu kwiikholamu zokwakha?
I-marble kunye ne-limestone zezona zinto zixhaphakileyo kwiikholamu zokusetyenziswa ngaphakathi. I-granite ikhethwa kakhulu kwiikholamu zangaphandle ezichatshazelwe yimozulu. I-Crema Marfil limestone ithandwa kwiikholamu zesitayile sakudala ngenxa yombala wayo ofudumeleyo wekhrimu kunye nobume obuhambelanayo. Kwiimpahla ezihonjiswe kakuhle, iimabula zeStatuario kunye neCalacatta zihlala zichazwa.
Iingxelo Zangaphandle: IZiko leeNdalo zeLitye | I-ASTM yaMazwe ngaMazwe | Uphando lweJiyoloji lwaseMelika
Ixesha leposi: Juni-30-2026