Tsoelo-pele ho Boenjiniere ba Sebopeho: Axial Compression Performance ea CFRP-Reinforced Concrete-Filled Double-Skinned Tubes

Selelekela

Sebakeng sa boenjineri ba meralo, tjantjello ea lisebelisoa le meralo e ntlafatsang ts'ebetso le ho tšoarella ha likarolo tsa kaho e ntse e tsoela pele. Phuputso ea morao tjena e fane ka leseli mabapi le ts'ebetso ea axial compression ea li-tubes tse tletseng letlalo tse peli (CFDST) tse matlafalitsoeng ka carbon fiber reinforced polymer (CFRP). Mokhoa ona o mocha o sebetsa ka ho khetheha bakeng sa lik'hamphani tse kang Tianjin Reliance Steel, e sebetsanang ka ho khetheha le tlhahiso ea li-tubes tsa tšepe tse lisekoere le tse nang le mahlakore a mabeli, ho akarelletsa le SHS (Square Hollow Sections) le RHS (Rectangular Hollow Sections). Sengoliloeng sena se shebisisa liphuputso tsa boithuto, litlamorao tsa indasteri ea kaho, le hore na Tianjin Reliance Steel e behiloe joang ho fihlela litlhoko tse tsoelang pele tsa lits'ebetso tsa meralo.

Ho Utloisisa Letlalo la Letlalo le Habeli la Concrete (CFDST)

Li-tubes tse nang le konkreite tse nang le letlalo le nang le letlalo le habeli ke karolo ea sebopeho se kopanyang melemo ea tšepe le konkreite. Tube ea tšepe e ka ntle e fana ka ho koalloa mokokotlong oa konkreite, ho matlafatsa matla a eona a khatello le ductility. Moralo ona o molemo ka ho khetheha libakeng tse nang le litšisinyeho tsa lefatše, moo meaho e tlamehang ho mamella matla a bohlokoa a ka morao. Boithuto bo shebaneng le bona bo hlahloba litšiea tse 15 tsa CFDST, e 'ngoe le e 'ngoe e na le merero e fapaneng ea matlafatso ea CFRP, ho lekola ts'ebetso ea bona ea axial compression.

Karolo ea CFRP ho Matlafatso ea Sebopeho

Carbon fiber reinforced polymer (CFRP) ke thepa e bobebe, e matla haholo e fumaneng botumo lits'ebetsong tsa meralo ka lebaka la thepa ea eona e ntle haholo ea mochini le ho hana ho senyeha ha tikoloho. Ka ho kenyelletsa CFRP moralong oa litšiea tsa CFDST, baenjiniere ba ka ntlafatsa haholo bokhoni ba ho jara meroalo le ts'ebetso ka kakaretso ea meaho ena. Boithuto bona bo etsa lipatlisiso ka merero e fapaneng ea matlafatso, ho sekaseka hore na litlhophiso tse fapaneng tsa CFRP li ka ntlafatsa ts'ebetso ea axial compression ea likholomo joang.

Liphuputso Tsa Bohlokoa Thutong

Patlisiso e totobatsa liphetho tse 'maloa tsa bohlokoa mabapi le ts'ebetso ea axial compression ea likholomo tsa CFDST tse matlafalitsoeng ke CFRP:

1. Bokhoni bo Matlafalitsoeng ba ho Jara Moroalo: Ho kenyeletsoa ha matlafatso ea CFRP ho eketsa haholo matla a ho jara litšiea tsa CFDST. Phuputso e bontša hore merero e khethehileng ea ho matlafatsa e ka lebisa ntlafatsong e hlakileng ea ts'ebetso ha e bapisoa le li-tubes tse tloaelehileng tse tletseng konkreite.
2. Ductility le Energy Absorption: Matlafatso ea CFRP ha e ntlafatse matla feela empa hape e ntlafatsa ductility ea litšiea. Tšobotsi ena e bohlokoa ts'ebetsong ea litšisinyeho tsa lefatše, moo meaho e tlamehang ho monya le ho senya matla nakong ea tšisinyeho ea lefatše.
3. Mekhoa ea ho hloleha: Boithuto bo supa mekhoa e fapaneng ea ho hloleha bakeng sa likholomo tsa CFDST tse matlafalitsoeng ke CFRP, e fana ka lintlha tsa bohlokoa mabapi le hore na meaho ena e sebetsa joang tlas'a meroalo ea axial. Ho utloisisa mekhoa ena ea ho hlōleha ho bohlokoa bakeng sa ho rala mehaho e sireletsehileng le e tsitsitseng haholoanyane.
4. Merero e Ntle ea Matlafatso: Ka ho bapisa meralo e fapaneng ea matlafatso ea CFRP, lipatlisiso li supa merero e nepahetseng e eketsang ts'ebetso ha e ntse e fokotsa ts'ebeliso ea thepa. Sephetho sena se bohlokoa haholo bakeng sa mekhoa ea kaho e baballang chelete e ngata.

Liphello bakeng sa Indasteri ea Kaho

Liphuputso tsa phuputso ena li na le litlamorao tse kholo bakeng sa indasteri ea kaho, haholoholo moralong le ts'ebetsong ea likarolo tsa meralo meahong e hloahloa, marokho le lisebelisoa tse ling tsa bohlokoa. Tshebetso e ntlafetseng ya dikholomo tsa CFDST e matlafaditsweng ke CFRP e ka lebisa ho meaho e bolokehileng, e tiileng le ho feta e hlomelletsweng hantle ho mamella mathata a bakwang ke dikoduwa tsa tlhaho le merwalo e boima.

Ho feta moo, bokhoni ba ho ntlafatsa merero ea matlafatso e lumella baenjiniere ho rala meaho e seng matla feela empa hape e na le moruo. Sena ke sa bohlokoa ka ho khetheha mehleng eo ho eona ho tšoarella le ho boloka litšenyehelo li le bohlokoa haholo mekhoeng ea kaho.

Tianjin Reliance Steel: Moetapele oa Litharollo tsa Sebopeho

Joaloka moetsi ea hlahelletseng oa li-tubes tsa tšepe tse lisekoere le tse khutlonnetsepa, ho kenyeletsoa SHS le RHS, Tianjin Reliance Steel e boemong bo botle ba ho rua molemo tsoelopeleng ea theknoloji ea CFDST. Boitlamo ba k'hamphani ho boleng le boqapi bo tsamaellana le liphuputso tsa phuputso ea morao-rao, e ba nolofalletsang ho fana ka litharollo tsa mantlha ho bareki ba bona.

Lethathamo la lihlahisoa tsa Tianjin Reliance Steel le kenyelletsa mefuta e fapaneng ea li-profile tsa tšepe tse ka sebelisoang ho aheng litšiea tsa CFDST. Ka ho sebelisana le baenjiniere le litsebi tsa meralo, k'hamphani e ka fana ka tharollo e hlophisitsoeng e kenyelletsang matlafatso ea CFRP, ho netefatsa hore lihlahisoa tsa bona li fihlela litlhoko tse ikhethang tsa merero ea sejoale-joale ea kaho.

Qetello

Ho hlahlojoa ha tšebetso ea axial compression ka har'a li-tubes tse matlafalitsoeng ka konkreite tse tlatsitsoeng ka matlalo a mabeli a CFRP ho emela tsoelopele e kholo boenjiniere ba meralo. Liphuputso tsa phuputso li totobatsa bokhoni ba lisebelisoa tsena tse kopantsoeng ho matlafatsa polokeho, ho tšoarella, le bokhoni ba likarolo tsa kaho. Ha indasteri e ntse e tsoela pele ho fetoha, lik'hamphani tse kang Tianjin Reliance Steel li mothating oa ho etella pele ho fana ka litharollo tse ncha tse fihlelang litlhoko tsa merero ea meaho ea sejoale-joale. Ka ho amohela mahlale a macha le thepa, lekala la kaho le ka aha bokamoso bo tiileng, bo khonang ho mamella mathata a hosane.