Yuav ua li cas txiav txim siab yog tias thauj tog rau nkoj cable tensioning nyob rau hauv qhov chaw?

1. Txheeb xyuas tus nqi kev ntxhov siab. Qhov no yog cov qauv ncaj qha tshaj plaws. Thaum lub sij hawm tensioning, lub hydraulic siab ntsuas ntsuas yuav tsum ncav cuag tus tsim nro kev nyuaj siab tus nqi. Piv txwv li, yog hais tias tus tsim nro quab yuam yog 300kN, lub hydraulic siab gauge nyeem ntawv yuav tsum stabilize ntawm tus nqi sib thooj.

2. Txheeb xyuas tus nqi elongation. Qhov tseeb elongation tus nqi ntawm cov hlau strand yuav tsum muab piv nrog cov theoretical xam tus nqi. Qhov tseeb elongation tus nqi yuav tsum tsis pub dhau ± 6% ntawm tus nqi theoretical. Yog hais tias qhov sib txawv tshaj ± 10%, tensioning yuav tsum tau nres tam sim ntawd, thiab qhov ua rau soj ntsuam.

3. Saib xyuas cov txheej txheem tensioning. Tensioning yuav tsum tau ua nyob rau hauv theem, feem ntau yog nyob rau hauv ob theem: thawj tensioning mus rau 70% ntawm tag nrho cov nro, ua raws li los ntawm ib tug thib ob tensioning rau 100% tom qab ib tug ncua sij hawm ntawm 3-5 hnub. Tom qab txhua theem ntawm kev thauj khoom, lub siab yuav tsum ruaj khov rau 3-5 feeb, saib seb lub ntsuas qhov ntsuas siab thiab qhov ntsuas qhov ntsuas qhov ntsuas puas ruaj khov.

4. Txheeb xyuas qhov xauv thiab tiv thaiv. Tom qab tensioning nyob rau hauv qhov chaw, xauv yuav tsum tau ua raws li tus tsim locking nqi. Thaum kawg, raug cov hlau xaim yuav tsum tau muab kaw thiab tiv thaiv nrog pob zeb ua raws li kev tsim qauv los tiv thaiv corrosion.

Cov ntsiab lus tseem ceeb

Txoj Cai Tswjfwm Dual: Ob qhov kev ntxhov siab thiab elongation yuav tsum tau ua tiav ib txhij; kev txiav txim tsis tuaj yeem nyob ntawm ib leeg xwb.

Cov khoom siv Calibration: Ua ntej tensioning, cov cuab yeej xws li jacks thiab roj twj yuav tsum tau calibrated kom paub meej cov ntaub ntawv.

Slurry Strength: Thaum lub sij hawm tensioning, lub mortar lub zog nyob rau hauv lub qhov yuav tsum ncav cuag tsawg kawg yog 70% ntawm lub zog tsim.