Txias- dov ribbed steel tuav ua tshuab
Txias-rolled ribbed steel tuav yog ib qho tseem ceeb hauv kev tsim kho kev lag luam thiab tau siv dav hauv kev tsim vaj tsev, cement yeeb nkab ua, kev tsim kho thiab choj, cement manhole npog, prestressed hluav taws xob ncej thiab lwm yam teb. Raws li txias- dov ribbed steel tuav tau nce siv hauv kev txhim kho kev lag luam hauv lub tebchaws, lawv cov kev siv kuj tseem loj tuaj. Txhawm rau txhawm rau txhim kho kev tsim khoom thiab kev ua tau zoo ntawm qib txias- dov ribbed steel tuav, nws yog ib qho tseem ceeb heev los txhawb kev tshawb fawb ntawm txias- dov ribbed steel bar ntau lawm cov cuab yeej thiab thev naus laus zis.
Txheej txheem khiav ntawm txias- dov ribbed steel bar ntau lawm kab
Txias-rolled ribbed steel bar yog ib hom steel bar nrog crescent -zoo li tus transverse tav ntawm ob los yog peb sab. Nws lub hauv paus tsim khoom yog kub - dov hlau pas nrig. Cov khoom siv tseem ceeb suav nrog lub tshuab txias dov, tshuab kos duab, tshuab coiling, xaim xaim tshuab, hmoov txheej tshuab thiab dej txias.
Hauv cov txheej txheem tsim khoom ntawm cov khoom txias- dov ribbed steel tuav, cov txheej txheem thev naus laus zis yuav tsum ua raws li plaub yam hauv qab no:
(1) Rau steel tuav nrog qib prestress siab tshaj 800, nws yog ib qho tsim nyog los xyuas kom meej ob lub ntsiab lus zoo: rov qab khoov thiab elongation. Cov txheej txheem ntau lawm yog raws li nram no: ua ntej, cov khoom siv hauv paus yog unloaded los ntawm kab; thib ob, nws yog uncoiled; thib peb, kev ntxhov siab yog ua tiav; thiab thaum kawg, nws yog recoiled.
(2) Rau cov uas tsis yog -prestressed steel bars ntawm qib 550, nws yog ib qho tseem ceeb los xyuas kom meej tias cov kev soj ntsuam tau zoo raws li cov qauv, thiab nyob rau hauv lub hauv paus no, siv zog ua kom muaj qhov tsis zoo sib txawv.
(3) Rau khib- cov khoom loj nrog qib prestress ntawm 550, kom ntseeg tau tias qhov ruaj khov ntawm qhov zoo, yuav tsum muaj plaub qhov kev sib tw ntawm dov, ua raws li kev ntxhov siab thib ob, thiab tom qab ntawd ob zaug ntawm dov ntawm ib qho chaw sawv ntsug.
(4) Lub nominal txoj kab uas hla ntawm txias - dov ribbed steel tuav yog txhais nyob rau hauv cov qauv raws li qhov kev ncua deb ntawm lub hauv paus lub voj voog taw tes rau lub tav center qhov siab. Yog li ntawd, thaum lub sij hawm tsim ntawm cov tuag thiab tom qab hloov kho, txoj kab uas hla ntawm cov khoom tiav lub hauv paus lub voj voog yuav tsum tau tswj kom 0.3 mus rau 0.5 hli tsawg dua tus qauv nominal txoj kab uas hla.
