Birta muuqaalka leh waa nooc ka mid ah birta xariijinta leh oo leh qaab iyo cabbir gaar ah oo isdhaafsan, waana mid ka mid ah afarta nooc ee ugu waaweyn ee birta (saxan, tuubo, muuqaal, silig). Maanta, tifaftiraha wax soo saarka injineernimada qaab-dhismeedka birta zhongo wuxuu taxayaa dhowr bir oo caadi ah si uu kuu sharaxo! Aan hoos ku eegno!
① Birta kanaalka waxaa loo isticmaalaa alwaaxyada dahaarka ee warshadaha hal dabaq ah, waxaana sidoo kale loo isticmaalaa alwaaxyada madal ama agabka taageerada mashaariicda kale.
② Birta xagasha waxaa loo isticmaalaa taageero mashruucan, waxaana inta badan loo isticmaalaa ulaha taageerada ama ulaha truss-ka mashaariicda kale.
Birta qaabaysan ee ③C iyo birta qaabaysan ee Z ayaa loo isticmaalaa purlins-ka saqafka, purlins-ka derbiga, alwaaxyada albaabka, tiirarka albaabka, alwaaxyada daaqadaha, tiirarka daaqadaha, iwm. mashruucan, isla sidaas oo kale ayaa ku jira mashaariicda kale.
④ Bir wareegsan ayaa loo isticmaalaa in lagu dhejiyo purlins-ka mashruucan, waxaana sidoo kale loo isticmaali karaa taageerada tiirarka dhexdooda mashaariicda kale.
⑤ Tuubooyinka birta ah waxaa inta badan loo isticmaalaa khaanadaha taageerada adag ee mashruucan, waxaana loo isticmaalaa agabka ugu muhiimsan ee tiirarka shabagga ama taageerada tiirarka dhexdooda, ulaha isku xidhka tiirarka dhexdooda, iwm. mashaariicda kale.
Waqtiga boostada: Febraayo-01-2023