Qhov ze tshaj ASTM W-puab sib npaug rau GB HW 300x300 (GB/T 11263) yogW12x96(ASTM A6/A992), nrog rau qhov loj me thiab lub peev xwm thauj khoom kom haum rau hnyav -load daim ntawv thov xws li choj girders thiab cov kab kev lag luam:
Dimensional thiab Property Comparison
| Parameter | ASTM W 12 x 96 (A992) | GB HW 300x300 (Q355B) | Alignment Status |
|---|---|---|---|
| Qhov tob (d) | 12.71 nti=322.8 hli | 300 hli | +22.8 hli (hauv ASTM/GB kam rau ua) |
| Flange dav (bf) | 12.01 nti=305.1 hli | 300 hli | +5.1 hli |
| Web Thickness (tw) | 0.500 nti=12.70 hli | 10.5 hli | +2.2 hli |
| Flange Thickness (tf) | 0.855 nti=21.72 hli | 15.5 hli | +6.22 hli |
| Qhov hnyav (w) | 96 lbs/ft=143.1 kg/m | 94.5 kg / m | +8.6 kg/m |
| Ntu Modulus (Sx) | 144 in³=2360 cm³ | 1 350 cm3 | +1010 cm³ (43% siab dua) |
| Yield zog (Fy) | 345 MPa rau | 355 MPa (tsawg dua lossis sib npaug li 16 hli) | -10 MPa |
Hloov Feasibility
Load Capacity: W12x96's siab dua seem modulus (2360 cm³ vs . 1350 cm³) txhais tau tias nws tuaj yeem txhawb nqa 43% ntau bending load rau tib lub sijhawm. Piv txwv li, tshaj 8-meter ncua, W12x96 txhawb ~ 814 kN·m (2360 cm³ × 345 MPa), thaum HW 300x300 txhawb ~ 479 kN·m (1350 cm³ × 355 MPa). Qhov no tso cai rau downsizing rau ib tug W12x72 (107 in³ / 1750 cm³) rau kev txuag nqi yog tias lub load tso cai.
Haum: W12x96's dav me ntsis flange (305.1 mm vs . 300 mm) haum GB brackets nrog kev hloov me me (xws li, siv M20 bolts nrog 25 mm washers los npog qhov sib txawv 5.1 mm). Lub web thicker (12.7 mm vs . 10.5 mm) txhim kho lub peev xwm shear (245 kN vs . 195 kN), tshem tawm qhov xav tau ntawm web stiffeners.
Fabrication: Ob leeg siv tib cov txheej txheem vuam (SMAW/GMAW) nrog E5015/ER50-6 consumables. W12x96's thicker flange yuav tsum tau welds ntev me ntsis (12 hli vs . 10 hli ceg ntev) kom paub meej tias tag nrho cov kev nkag mus, tab sis tsis xav tau kev hloov khoom siv.
Thaum tsis yog qhov tseeb qhov sib tw, W12x96 yog qhov ua tau zoo tshaj plaws ASTM sib npaug rau HW 300x300, muab cov peev txheej zoo tshaj plaws thiab kev sib raug zoo nrog GB tsim.