High-lub zog steeltuaj yeem siv rau hauv cov qauv steel kom txuag tau tus nqi ntawm cov hlau siv thiab txo tus nqi ntawm cov qauv steel fabrication, kev thauj mus los thiab kev teeb tsa.Txij li cov khoom siv hluav taws xob ntawm cov hlau muaj zog tsis muaj qhov sib txawv nrog cov hlau zoo tib yam, cov kws tshawb fawb hauv tsev thiab txawv teb chaws tau ua ntau txoj haujlwm tshawb fawb txog kev siv cov khoom siv hlau zoo hauv xyoo tas los no.

Ntxiv rau cov tswv cuab tsim nyog tsim nyog, cov qauv hlau muaj zog yuav tsum muaj kev sib txuas zoo ntawm cov tswv cuab muaj zog steel los tsim cov qauv kev nyab xeeb thiab txhim khu kev qha.

Kev tshawb fawb kev nce qib ntawm ob txoj kev sib txuas tseem ceeb ntawm cov hlau muaj zog siab (vuam thiab bolting) hauv tsev thiab txawv teb chaws tau qhia, suav nrog: kev tshawb fawb txog kev ua haujlwm ntawm kev ua haujlwm siab ntawm lub zog steel pob tw-weld, kev tshawb fawb ntawm cov kabmob load-bearing. kev ua tau zoo ntawm kev siv zog siab steel fillet-weld kev sib txuas, kev tshawb fawb ntawm kev ua haujlwm ntawm kev ua haujlwm ntawm lub zog siab steel kev sib txhuam-hom bolting, kev tshawb fawb txog kev ua haujlwm ntawm kev ua haujlwm ntawm lub zog steel compression-hom bolting thiab kev tshawb fawb ntawm hydrogen- ncua kev tawg ntawm lub zog siab bolts ntawm qib 12.9, thiab lwm yam, thiab qhia txog qhov kev tshawb fawb ntawm Tongji University.Tongji University, qhia txog kev ua tiav ntawm kev tshawb fawb uas twb muaj lawm thiab saib ua ntej rau kev tshawb fawb yav tom ntej.

Kev siv tsis muaj zog sib txuam hauv lub pob tw vuam ntawm cov hlau muaj zog tuaj yeem txo qhov vuam preheating kub, txo qhov vuam tsis xws luag thiab txhim kho cov ductility ntawm kev sib koom ua ke.

Txawm li cas los xij, kev sib txuam tsis muaj zog tuaj yeem ua rau muaj kev cuam tshuam tseem ceeb ntawm lub peev xwm thauj khoom ntawm cov welded sib koom.Ntau tus kws tshawb fawb tau pom tias cov txiaj ntsig ntawm European code EC3 ntawm qhov tsis sib xws ntawm kev sib koom ua ke ntawm welded pob qij txha lub zog suav cov kev cai yog qhov tsim nyog lossis kev saib xyuas.

High-strength steel softening tshwm sim tom qab vuam thiab qhov luaj li cas ntawm cov degree ntawm softening thiab steel zog mechanism, dov txheej txheem thiab rhiab heev rau kev kho cua sov, vim high-strength steel nyob rau hauv cov txheej txheem dov tau ib los yog ntau tshaj kev kho cua sov, cov hlau nyob ze. lub vuam thiab cov khoom siv hluav taws xob thiab cov cua kub cua txias ua haujlwm, yog li nws tsis tuaj yeem tswj hwm cov khoom qub, thiab yog li ntawd tshav kub cuam tshuam.

Cov yam ntxwv tshwj xeeb cuam tshuam rau lub zog ntawm qhov sib koom ua ke muaj xws li lub zog ntawm cov khoom siv vuam, qhov dav ntawm thaj chaw weld, softening zone zog, softening zone width, width-thickness ratio of the welded part and the weld bevel angle.

1) ntau txoj hauv kev ntawm kev noj cov khoom hlais muaj kev cuam tshuam ntau dua rau kev tiv thaiv plam coefficient, thiab tus nqi ntawm kev tiv thaiv plam coefficient ntawm Suav code yog 7% mus rau 20% ntau dua tus nqi ntawm European code.

2) Rau qhov kev txhaj tshuaj blasting nto, qhov ntsuas qhov ntsuas tus nqi ntawm kev tiv thaiv plam coefficient ntawm high-strength steel yog nyob nruab nrab ntawm 0.45 thiab 0.50 raws li European code, thiab yog hais tias ib tug tej yam kev ruaj ntseg lav tus nqi raug xam, tus nqi tsim nyog yog nyob nruab nrab ntawm 0.4 thiab 0.45.

3) Tnws anti-slip coefficient ntawm liab xeb nto tom qab txhaj koob tshuaj tivthaiv blasting ntawm high-strength steel yog feem ntau loj dua li ntawm txhaj blasting nto.

4) Tnws anti-slip coefficient ntawmsiab ttsis txaus ntseegszog wiretxhuam nto raws li European cov qauv yog ze rau tus nqi coj raws li Suav cov qauv, cov kev tiv thaiv plam coefficient txo qis nrog kev nce qib ntawm steel zog.

5) Kev kho deg ntawm lub zog siab steel tua blasted thiab coated nrog inorganic zinc-nplua nuj xim tuaj yeem ua rau kom muaj kev ruaj ntseg ntawm kev sib txhuam coefficient ntawm kev sib txhuam nto, thiab tus qauv ntawm kev sib txhuam coefficient feem ntau me dua lwm qhov chaw. txoj kev kho mob.Lub thickness ntawm inorganic zinc-nplua nuj xim txheej yog qhov tsim nyog rau kev txhim kho cov nplaum tiv thaiv coefficient, thiab cov nplaum tiv thaiv coefficient ntawm cov tuab txheej yog li 10% siab dua li ntawm cov txheej nyias.