Peb yam ntxwv ntawm lub arch ncej ntawm lub hnub ci vaj huam sib luag tsev cog khoom

Peb yam ntxwv ntawm lub arch ncej ntawm lub hnub ci vaj huam sib luag tsev cog khoom

(1) Reflective tsim nce lub teeb

Qhov saum npoo ntawm lub hnub ci vaj huam sib luag tsev cog khoom arch thav duab muaj cov khoom siv cuam tshuam, thiab daim ntawv thov ntawm cov xim kub yaj txheej zoo heev txhim kho lub teeb pom kev zoo. Lub teeb pom kev zoo yog pom tseeb tshaj plaws thaum sawv ntxov thiab yav tav su (sab teeb). Raws li qhov xwm txheej ib txwm muaj, qhov siv lub teeb yog li 15 feem pua ​​​​siab dua li ntawm cov tsev cog khoom zoo tib yam, uas yog sib npaug rau qhov sib npaug ze li ib teev ntau lub teeb hauv ib hnub;

(2) Ntev tiv thaiv -corrosion lub neej

Lub thav duab ntawm lub hnub ci vaj huam sib luag tsev cog khoom siv cov cuab yeej tiv thaiv siab tshaj -corrosion, thiab siv ob hom kev tiv thaiv- corrosion: kub- yaj yas-coated steel yeeb nkab thiab kub -dip galvanizing. Kev tiv thaiv zoo heev - kev ua haujlwm corrosion, tuaj yeem siv rau hauv qee qhov kev xav tau ntawm cov kua qaub, alkali ua haujlwm ib puag ncig thiab cov av noo ib puag ncig. Cov khoom siv koov muaj qhov nqus cua sov tsawg, thiab qhov kub ntawm qhov chaw nyob rau hauv lub hnub ncaj qha rau lub caij ntuj sov feem ntau tsis tshaj lub cev kub, yog li cov yeeb yaj kiab ua liaj ua teb yuav tsis raug scalded. Qhov saum npoo yog ci thiab huv si thiab yuav tsis kis kab mob ua liaj ua teb;

(3) Siab hardness thiab xuab zeb tsis kam

Lub arch thav duab ntawm lub hnub ci vaj huam sib luag tsev cog khoom yog ua los ntawm txias- dov lub kaum sab xis steel yeeb nkab, muaj zog compressive zog, thiab net siab ntawm ib lub koov tuaj yeem ncav cuag 250-350 kg. Raws li kev tsim kho kom yooj yim, lub hnub ci vaj huam sib luag tsev cog khoom muaj zog cua tsis kam thiab tuaj yeem tiv taus cua ceev ntawm 29 m / s (qib 10 cua). Tsis tas li ntawd, vim hais tias cov yeeb nkab steel yog siv, kev txhawb zog thiab compressive lub zog ntawm lub arch thav duab yog txhim kho, thiab nws yog tshwj xeeb tshaj yog haum rau cov cheeb tsam qaum teb sab hnub tuaj thiab sab qaum teb hnub poob uas hnyav cua thiab daus.