Dab tsi yog cov ntsiab lus tseem ceeb rau kev pom zoo ntawm Q355 steel daim hlau?
Tsis muaj kab nrib pleb, scabs, folds, slag inclusions, los yog delamination; nto corrosion qib tsawg dua lossis sib npaug rau A; Qhov sib txawv ntawm qhov sib txawv raws li GB / T 709 tus qauv; uniform thickness, tsis pom tseeb deformation.
Dab tsi yog qhov tsim nyog lub zog rau Q355 steel daim hlau hauv kev tsim vaj tsev?
Thickness Tsawg dua los yog sib npaug rau 16mm: Compressive / Tensile / Khoov tsim tus nqi 305MPa, Shear 175MPa.
16-40mm: Compressive / Tensile / Khoov 295MPa, Shear 170MPa.
40-63mm: Compressive / Tensile / Khoov 290MPa, Shear 165MPa.
13. Dab tsi yog qhov yuav tsum tau xaiv rau Q355 steel phaj hauv seismic tsim?
Hauv thaj tsam seismic ntawm kev siv 8 thiab siab dua, cov kab ke sab nraud thiab cov khoom txhawb nqa yuav tsum siv qib Q355D/E (-20℃cuam tshuam toughness). Cov khoom tseem ceeb-cov kabmob ntawm cov khoom siab siab- cov tsev nce siab yuav tsum ua tau raws li kev ua haujlwm seismic-raws li kev tsim qauv, nrog rau Z35 qib Z-kev taw qhia steel siv nyob rau hauv qhov chaw tseem ceeb ntawm cov pob qij txha.
14. Kev xav txog kev siv Q355 daim hlau hauv steel qauv kev sib koom tsim?
Cov pob qij txha tuab (Ntau dua lossis sib npaug li 40mm) yuav tsum siv Z-kev taw qhia steel kom tsis txhob lamellar tearing.
Tswj weld zoo; tag nrho nkag mus welds xav tau 100% UT xeem, ua tiav qib II ua raws.
Stiffening tav yuav tsum tau muab tso kom tsim nyog kom tsis txhob muaj kev ntxhov siab; stiffening ribs yuav tsum tau nyob rau hauv lub vev xaib ntawm lub zog -dissipating beam ntu.
15. Cov ntsiab lus tseem ceeb rau kev thov ntawm Q355 daim hlau hauv cov khoom sib xyaw ua ke?
Hauv cov hlau- cov kab sib xyaw ua ke thiab cov kab ke, Q355 daim hlau muab khoov thiab shear tsis kam, thaum lub pob zeb ua kom muaj zog thiab nruj.
Kev tso kawm ntawm stud yuav tsum ua raws li cov lus qhia tshwj xeeb los xyuas kom muaj kev sib koom tes ntawm cov hlau thiab pob zeb; lub load-cov kabmob muaj peev xwm ntawm cov khoom sib xyaw tuaj yeem nce los ntawm 30%-50%.