Cov kav hlauyog ib qho tseem ceeb ntawm kev tsim kho thiab kev lag luam tsim khoom, paub txog lawv qhov kev hloov pauv tau yooj yim thiab lub zog. Zoo li tus "C" lossis "U," cov ntsiab lus ntawm cov qauv no siv rau ntau yam kev siv los ntawm cov thav duab tsev mus rau kev txhawb nqa cov nqaj hlau. Kev nkag siab txog lub zog ntawm cov kav hlau yog qhov tseem ceeb rau cov engineers, architects, thiab cov neeg ua vaj tse thaum tsim cov qauv uas xav tau kev ruaj khov thiab kev ruaj khov.
Lub zog ntawm ibhlau channelyog txiav txim siab los ntawm ntau yam, suav nrog nws cov khoom siv, qhov loj me, thiab cov khoom thauj tshwj xeeb uas nws tsim los tiv taus. Hlau, ua ib yam khoom siv, paub txog nws lub zog tensile siab, uas tso cai rau nws tiv taus cov zog loj yam tsis muaj kev hloov pauv. Lub zog tso zis ntawm cov hlau qauv feem ntau yog ntawm 250 MPa thiab 350 MPa, nyob ntawm qib hlau siv. Qhov no txhais tau tias cov hlau channel tuaj yeem txhawb nqa cov khoom hnyav thaum tswj hwm nws cov qauv kev ruaj khov.
Qhov loj ntawm cov kav hlau ua lub luag haujlwm tseem ceeb rau nws lub zog. Cov kav hlau muaj ntau qhov loj me, nrog rau qhov dav, qhov siab thiab qhov tuab sib txawv. Lub sijhawm inertia yog qhov ntsuas ntawm qhov khoom tiv taus kev khoov thiab yog qhov tseem ceeb hauv kev txiav txim siab seb lub kav hlau tuaj yeem tiv taus ntau npaum li cas. Lub sijhawm inertia ntau dua, lub kav hlau muaj zog dua thiab nws tuaj yeem tiv taus kev khoov zoo li cas thaum muaj kev thauj khoom. Cov kws ua vaj tse feem ntau xa mus rau cov lus teev tseg uas muab cov yam ntxwv ntawm cov kav hlau sib txawv, tso cai rau lawv xaiv cov kav hlau kom raug rau ib daim ntawv thov tshwj xeeb.
Lub peev xwm ntawm kev thauj khoom ntawm ib qhohlau channelraug cuam tshuam los ntawm nws qhov kev taw qhia thiab hom kev thauj khoom uas nws raug. Thaum ib txoj kab ke raug taw qhia ntsug, nws tuaj yeem txhawb nqa cov khoom thauj axial, thaum kev taw qhia kab rov tav zoo dua rau kev tiv thaiv lub sijhawm khoov. Tsis tas li ntawd, hom kev thauj khoom, txawm tias static (tas mus li) lossis dynamic (hloov pauv), kuj yuav cuam tshuam rau kev ua haujlwm ntawm txoj kab ke. Piv txwv li, ib txoj kab ke hlau siv hauv choj yuav tsum tau tsim los tiv taus cov khoom thauj dynamic ntawm cov tsheb, thaum ib txoj kab ke siv hauv lub thav duab tsev feem ntau yuav txhawb nqa cov khoom thauj static.
Cov kav hlau siv rau ntau yam kev siv vim lawv lub zog thiab kev hloov pauv tau yooj yim. Hauv kev tsim kho, lawv siv ua cov ntoo khaub lig, kem, thiab cov brackets los muab kev txhawb nqa tsim nyog rau cov qauv. Hauv kev tsim khoom, lawv feem ntau siv los tsim cov tshuab thiab cov khoom siv. Lawv yooj yim welded, bolted, lossis riveted, ua rau lawv yog qhov kev xaiv zoo tshaj plaws rau ntau qhov project.
Txawm hais tias muaj zog, cov kav hlau kuj yooj yim rau xeb, uas tuaj yeem ua rau lawv cov qauv tsis muaj zog dhau sijhawm. Txhawm rau tawm tsam qhov no, ntau cov kav hlau raug kho nrog cov txheej tiv thaiv lossis ua los ntawm cov hlau galvanized, uas ua rau lawv tiv taus xeb thiab ntev lawv lub neej kev pabcuam. Kev saib xyuas thiab kev tshuaj xyuas tsis tu ncua yog qhov tseem ceeb kom ntseeg tau tias cov kav hlau tseem muaj zog thiab ua haujlwm tau thoob plaws lawv lub neej kev pabcuam.
Hauv kev xaus,cov hlau channelyog ib qho khoom siv muaj zog heev uas ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam. Lawv lub zog raug cuam tshuam los ntawm cov khoom siv, qhov loj me, thiab cov xwm txheej thauj khoom. Los ntawm kev nkag siab txog cov yam no, cov engineers thiab cov neeg ua vaj tse tuaj yeem siv cov kav hlau kom zoo los tsim cov qauv ruaj khov thiab ruaj khov. Txawm hais tias nyob rau hauv kev tsim kho, kev tsim khoom, lossis lwm yam kev siv, lub zog ntawm cov kav hlau ua rau lawv yog ib qho tseem ceeb ntawm kev tsim kho niaj hnub no.
→Yog xav paub ntxiv txog txhua yam khoom, cov kev pabcuam, thiab cov ntaub ntawv tshiab, thovtiv tauj peb.
Lub sijhawm tshaj tawm: Lub Ob Hlis-08-2025