Raws li peb qhov kev sib piv ntxaws ntxaws, cov hlau formwork yog qhov zoo dua rau cov haujlwm uas nws cov nqi pib siab tau raug them los ntawm nws lub zog zoo dua, kev siv rov qab tau, thiab qhov zoo tiav.
Tshwj xeeb, cov hlau formwork yog qhov kev xaiv zoo tshaj plaws rau:
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Cov haujlwm loj, rov ua dua (piv txwv li, cov tsev siab, choj, thiab cov pej thuam). Vim tias hlau siv tau ntau pua zaus (100-200+ lub voj voog), tus nqi rau ib zaug siv yuav poob qis heev, ua rau nws pheej yig dua li ntoo lossis yas rau lub sijhawm ntev.
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Cov haujlwm uas xav tau cov pob zeb zoo thiab du (piv txwv li, cov pob zeb ncaj ncees, cov pob zeb tsim vaj tsev uas pom tseeb). Cov hlau tsis muaj qhov, du thiab ua rau cov hlau tiav zoo kawg nkaus, tsis muaj qhov khoob uas feem ntau tsis tas yuav pleev xim lossis kho ntxiv rau saum npoo.
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Cov ntawv thov hnyav thiab siab (piv txwv li, cov kem loj, phab ntsa khaws cia, pas dej, chaw tsim hluav taws xob). Cov hlau muaj lub zog thiab kev nruj tshaj plaws, tiv taus cov dej siab ntawm cov pob zeb txog li 150 kN / m² yam tsis muaj kev hloov pauv lossis tawg.
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Cov sijhawm tsim kho sai. Cov txheej txheem hlau tsim (xws li cov qauv nce toj, cov qauv dhia, lossis cov qauv qhov av) tso cai rau kev sib dhos, kev rhuav tshem, thiab kev tsa cov qauv sai, ua kom lub sijhawm ua haujlwm ntawm pem teb mus rau pem teb sai dua.
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Daim ntawv thov formwork tas mus li. Cov hlau profiled decking rau cov composite slabs tseem nyob hauv qhov chaw, ua ob qho tib si ua formwork thaum lub sijhawm nchuav thiab ua lub zog tensile tom qab.
Hauv ntej, yog tias koj qhov project muaj ntau lub kem zoo sib xws, cov qauv zoo heev, cov khoom hnyav, lossis lub sijhawm nruj , cov hlau formwork yuav yog koj qhov kev xaiv zoo tshaj plaws. Rau cov haujlwm me me, ib zaug xwb uas cov peev nyiaj yog qhov txwv tseem ceeb, ntoo lossis yas yuav siv tau zoo dua.
