Litaba - Tataiso e Felletseng ea W Beams: Litekanyo, Lisebelisoa, le Mehopolo ea Theko

W mahlaseli, ke likarolo tsa motheo tsa meralo ea boenjiniere le kaho, ka lebaka la matla le ho feto-fetoha ha tsona. Sengoliloeng sena, re tla hlahloba litekanyo tse tloaelehileng, lisebelisoa tse sebelisoang, le linotlolo tsa ho khetha beam e nepahetseng bakeng sa projeke ea hau, ho kenyelletsa joalo kakhanya ea 14x22 W, khanya ea 16x26 W, Setšoantšo sa ASTM A992 W, le tse ling.

Ho Ikakhela ka Botlalo ho H-Beams E tsepamisitse maikutlo ho ASTM A992

Beam ea W ke eng?

Beam ea AW ke profil ea tšepe e nang le "W"-shaped cross-section, e entsoeng ka shaft (karolo e bohareng e otlolohileng) le li-flange tse peli (likarolo tse rapameng ka mahlakoreng). Jiometry ena e fana ka khanyetso e ntle ea ho kobeha le ho belesa, e etsa hore e be tse loketseng bakeng sa ts'ehetso ea meralo ea meaho, marokho le merero ea indasteri. Mantsoe a W-beam, W-profile, le W-beam a atisa ho sebelisoa ka mokhoa o fapaneng ho bua ka mofuta ona oa boemo.

Litekanyo tse tloaelehileng tsa W-Beam

Litekanyo tsa W-beam li hlalosoa ke bolelele ba tsona ka kakaretso (ho lekanngoa ho tloha pheletsong e 'ngoe ea flange ho ea ho e' ngoe) le boima ka leoto le leng le le leng, le hoja ka linako tse ling li bitsoa bolelele ba flange le bophara ka shorthand. Tse ling tsa litekanyo tse tsebahalang haholo li kenyelletsa:
12x16 W Beam: Hoo e ka bang lisenthimithara tse 12 holimo, boima ba lik'hilograma tse 16 ka leoto.
6x12 W Beam: 6 lisenthimithara tse phahameng, boima ba lik'hilograma tse 12 ka leoto, e loketse lisebelisoa tse nyenyane.
14x22 W Beam: bolelele ba lisenthimithara tse 14, boima ba lik'hilograma tse 22 ka leoto, le sebelisoang meahong e mahareng.
16x26 W Beam: Ho bophahamo ba lisenthimithara tse 16 le boima ba lik'hilograma tse 26 ka leoto, e loketse meroalo e boima.

Ts'epe ea W-beam e sebelisoang ka ho fetisisa e kopana le tekanyetso ea ASTM A992, e hlalosang tšepe e sebetsang hantle e nang le matla a ho hlahisa a 50 ksi (50,000 pounds per square inch). Tšepe ena e tsejoa ka:
Ho hanyetsa ha eona ho bola ha e phekoloa ka liphekolo tse sireletsang.
Ductility ea eona, e lumellang li-deformation tse laoloang ntle le ho senya.
Bokhoni ba eona ba ho mamella meroalo e tsitsitseng le e matla, e etsa hore e be e loketseng tikoloho e thata.
Ho tlatselletsoa hoASTM A992 tšepe, Mabala a W a ka boela a fumanoa mefuteng e meng ea tšepe, e kang ASTM A36, le hoja A992 e khethoa mererong e meholo ea meralo ka lebaka la matla a eona a maholo.

Lintlha tsa bohlokoa ha u reka li-W-Beams

Hlalosa Litlhoko tsa Tekheniki
Meroalo e Ts'ehetsang: Bala boima ba 'mele (boima ba hau) le meroalo e matla (e tsamaeang) eo borokho bo tla e tšehetsa. Mehlala e kang 16x26 W-beam e loketse meroalo e boima, ha 6x12 W-beam e molemo bakeng sa mehaho e menyenyane.
Bolelele bo Hlokehang: Mabala a W a entsoe ka bolelele bo tloaelehileng, empa a ka etsoa molemong oa morero ka mong. Etsa bonnete ba hore bolelele bo ke ke ba baka mathata a lipalangoang kapa a ho kenya.

Netefatsa Boemo le Boitsebiso
Etsa bonnete ba hore boriti bo kopana le maemo a ASTM A992 haeba e le morero o moholo oa meralo, kaha sena se tiisa thepa e tšoanang ea mochini.
Lekola boleng ba tšepe: e tlameha ho bonts'a matšoao a semmuso a moetsi le litifikeiti tsa ho latela maemo a machabeng.

Lekola Mofani
Khetha bahlahisi ba nang le boiphihlelo ka tšepeW-mabalale botumo 'marakeng. Sheba litšupiso 'me u hlahlobe merero ea bona e fetileng.

Bapisa litheko, empa u se ke ua lebala hore boleng ba thepa bo bohlokoa ho feta theko e tlase. Maballo a boleng bo tlaase a W a ka lebisa ho hloleheng ha moralo ka nako e telele.

Nahana ka Surface Treatment
Mabala a W a pepesehileng tikolohong a lokela ho ba le kalafo e thibelang kutu, joalo ka pente ea epoxy kapa galvanization. Sena se eketsa ho tšoarella ha tsona, haholo-holo libakeng tse nang le mongobo kapa letsoai.

Netefatsa Tšebeliso e khethehileng
Bakeng sa merero e kang marokho kapa mehaho e melelele, khetho ea W-beam e lokela ho etsoa hammoho le moenjiniere oa meralo, ea tla khetholla litekanyo tse nepahetseng le thepa e thehiloeng ho litekanyetso tsa sebaka le litlhoko tsa mojaro.

Li-beam ke likarolo tsa bohlokoa mohahong oa sejoale-joale, 'me khetho ea tsona e nepahetseng e itšetlehile ka ho utloisisa boholo ba eona (joalo ka 14x22 W-beam kapa 12x16 W-beam), thepa (haholo-holo ASTM A992 tšepe), le litlhoko tsa morero. Ha u reka, beha boleng pele, ho lumellana le litekanyetso, le setumo sa mofani oa thepa, kahoo u netefatse tšireletseho le ho tšoarella ha mohaho oa hau.