Intuthuko Kubunjiniyela Bezakhiwo: Ukusebenza Kokucindezela kwe-Axial kwe-CFRP-Reinforced Concrete-Filled Double-Skinned Tubes

Isingeniso

Emkhakheni wobunjiniyela bezakhiwo, ukufuna izinto zokwakha namadizayini athuthukisa ukusebenza nokuqina kwezinto zokwakha kuyaqhubeka. Ucwaningo lwakamuva lukhanyisele ukusebenza kokucindezela kwe-axial kwamashubhu anesikhumba esiphindwe kabili agcwaliswe ukhonkolo (CFDST) aqiniswe nge-carbon fibre reinforced polymer (CFRP). Le ndlela yokusungula ibalulekile ikakhulukazi ezinkampanini ezifana ne-Tianjin Reliance Steel, egxile ekukhiqizeni amashubhu ensimbi ayizikwele nawonxande, okuhlanganisa i-SHS (Izingqimba Eziyisikwele) kanye ne-RHS (Izigaba Eziyizigodi Eziwunxande). Lesi sihloko sicubungula okutholwe ocwaningweni, imithelela embonini yezokwakha, nokuthi i-Tianjin Reliance Steel ibekwe kanjani ukuze ihlangabezane nezidingo eziguqukayo zezinhlelo zokusebenza zesakhiwo.

Ukuqonda Amashubhu Anesikhumba Esikabili Agcwele Ukhonkolo (CFDST)

Amashubhu anesikhumba esiphindwe kabili agcwele ukhonkolo ayingxenye yesakhiwo esihlanganisa izinzuzo zensimbi nokhonkolo. Ishubhu lensimbi langaphandle lihlinzeka ngokuvalelwa kumongo kakhonkolo, lithuthukisa amandla alo acindezelayo kanye ne-ductility. Lo mklamo uzuzisa kakhulu ezindaweni ezithandwa yi-seismic, lapho izakhiwo kufanele zimelane namandla abalulekile asemaceleni. Ucwaningo okugxilwe kulo luhlola amakholomu angu-15 e-CFDST, ngalinye linezikimu zokuqinisa ze-CFRP ezihlukene, ukuze kuhlolwe ukusebenza kwawo kwe-axial compression.

Iqhaza le-CFRP Ekuqinisweni Kwesakhiwo

I-Carbon fiber reinforced polymer (i-CFRP) iyinto engasindi, enamandla amakhulu ethole ukuduma ekusetshenzisweni kwesakhiwo ngenxa yezakhiwo zayo ezinhle kakhulu zokusebenza kanye nokumelana nokucekelwa phansi kwemvelo. Ngokuhlanganisa i-CFRP ekwakhiweni kwamakholomu e-CFDST, onjiniyela bangathuthukisa kakhulu umthamo wokuthwala umthwalo kanye nokusebenza kukonke kwalezi zakhiwo. Ucwaningo luphenya izikimu ezihlukahlukene zokuqinisa, luhlaziya ukuthi ukucushwa okuhlukene kwe-CFRP kungathuthukisa kanjani ukusebenza kokucindezela kwe-axial kwamakholomu.

Okutholakele Okubalulekile Ocwaningweni

Ucwaningo lugqamisa okutholakele okumbalwa okubalulekile mayelana nokusebenza kokucindezela kwe-axial kwamakholomu e-CFDST aqiniswe yi-CFRP:

1. Ikhono Elithuthukisiwe Lokuthwala Imithwalo: Ukufakwa kokuqiniswa kwe-CFRP kukhulisa kakhulu umthamo wokuthwala umthwalo wamakholomu e-CFDST. Ucwaningo lubonisa ukuthi izinhlelo ezithile zokuqinisa zingaholela ekuthuthukisweni okuphawulekayo ekusebenzeni uma kuqhathaniswa namashubhu endabuko agcwele ukhonkolo.
2. I-Ductility kanye Ne-Energy Absorption: Ukuqiniswa kwe-CFRP akugcini nje ngokuthuthukisa amandla kodwa futhi kuthuthukisa i-ductility yamakholomu. Lesi sici sibalulekile ekusebenzeni kokuzamazama komhlaba, lapho izakhiwo kufanele zimunce futhi zikhiphe amandla ngesikhathi sokuzamazama komhlaba.
3. Izindlela Zokwehluleka: Ucwaningo lukhomba izindlela zokwehluleka ezihlukene zamakholomu e-CFDST aqiniswe yi-CFRP, lunikeza imininingwane ebalulekile yokuthi lezi zakhiwo ziziphatha kanjani ngaphansi kwemithwalo ye-axial. Ukuqonda lezi zindlela zokwehluleka kubalulekile ekuklameni izakhiwo eziphephile neziqinile.
4. Izikimu Zokuqiniswa Okufanelekile: Ngokuqhathanisa ukucushwa okuhlukahlukene kokuqinisa kwe-CFRP, ucwaningo luhlonza izikimu ezifanele ezikhuphula ukusebenza ngenkathi kunciphisa ukusetshenziswa kwezinto ezibonakalayo. Lokhu okutholakele kuhambisana ikakhulukazi nezinqubo zokwakha ezingabizi kakhulu.

Imithelela Embonini Yezokwakha

Okutholwe kulolu cwaningo kunemithelela ebalulekile embonini yezokwakha, ikakhulukazi ekwakhiweni nasekusetshenzisweni kwezakhi zesakhiwo ezakhiweni eziphakeme kakhulu, amabhuloho, nezinye izingqalasizinda ezibalulekile. Ukusebenza okuthuthukisiwe kwamakholomu e-CFDST aqiniswe yi-CFRP kungaholela ezakhiweni eziphephile, eziqinile ezikuhlomele kangcono ukumelana nezinselele ezibangelwa izinhlekelele zemvelo nemithwalo esindayo.

Ngaphezu kwalokho, ikhono lokuthuthukisa izikimu zokuqinisa livumela onjiniyela ukuthi bakhe izakhiwo ezingaqinile nje kuphela kodwa futhi ezonga kakhulu. Lokhu kubaluleke kakhulu esikhathini lapho ukusimama nokusebenza kahle kwezindleko kubaluleke kakhulu emisebenzini yokwakha.

I-Tianjin Reliance Steel: Umholi Wezixazululo Zesakhiwo

Njengomkhiqizi ovelele wamashubhu ensimbi ayizikwele nawonxande, okuhlanganisa i-SHS ne-RHS, i-Tianjin Reliance Steel ibekwe kahle ukuze isebenzise intuthuko yobuchwepheshe be-CFDST. Ukuzibophezela kwenkampani kwikhwalithi nokusungula izinto kuhambisana nokutholwe ocwaningweni lwakamuva, okubenza bakwazi ukunikeza amakhasimende abo izixazululo ezisezingeni eliphezulu.

Uhla lomkhiqizo we-Tianjin Reliance Steel luhlanganisa amaphrofayili eshubhu ensimbi ahlukahlukene angasetshenziswa ekwakhiweni kwamakholomu e-CFDST. Ngokusebenzisana nonjiniyela nabadwebi bezakhiwo, inkampani inganikeza izixazululo ezihambisanayo ezihlanganisa ukuqinisa i-CFRP, iqinisekise ukuthi imikhiqizo yabo ihlangabezana nezidingo ezithile zamaphrojekthi wokwakha wesimanje.

Isiphetho

Ukuhlolwa kokusebenza kokucindezela kwe-axial kumashubhu anesikhumba esiphindwe kabili agcwaliswe ukhonkolo e-CFRP kumelela intuthuko enkulu kwezobunjiniyela besakhiwo. Okutholwe ucwaningo kugcizelela amandla alezi zinto eziyinhlanganisela ukuze kuthuthukiswe ukuphepha, ukuqina, nokusebenza kahle kwezinto zokwakha. Njengoba imboni iqhubeka nokuvela, izinkampani ezifana ne-Tianjin Reliance Steel zikulungele ukuhola indlela ekuhlinzekeni ngezixazululo ezintsha ezihlangabezana nezidingo zamaphrojekthi wengqalasizinda yesimanje. Ngokwamukela ubuchwepheshe obusha nezinto zokwakha, umkhakha wezokwakha ungakha ikusasa eliqinile, elikwazi ukumelana nezinselele zakusasa.