Aashto Girder Sections: BI-48 to BIV-48
Standard prestressed concrete girder section properties — AASHTO Types I-VI, PCI Bulb-Tees BT-54/BT-63/BT-72, and AASHTO box beams BI-36 through BIV-48
| section | Ix in4 (in4) | Sb in3 (in3) | St in3 (in3) | area in2 (in2) | bottom flange width in (in) | depth in (in) | notes | top flange width in (in) | web width in (in) | weight plf (lb/ft) | yb in (in) | yt in (in) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BI-48 | 65,941 | 4,838 | 4,932 | 692.5 | 48 | 27 | Box beam 27x48; wider section; spans 40-60 ft | 48 | 5 | 721 | 13.63 | 13.37 |
| BII-36 | 85,153 | 5,095 | 5,227 | 620.5 | 36 | 33 | Box beam 33x36; spans 55-80 ft | 36 | 5 | 646 | 16.71 | 16.29 |
| BII-48 | 110,499 | 6,629 | 6,767 | 752.5 | 48 | 33 | Box beam 33x48; wider section; spans 55-80 ft | 48 | 5 | 784 | 16.67 | 16.33 |
| BIII-48 | 168,367 | 8,543 | 8,727 | 812.5 | 48 | 39 | Box beam 39x48; spans 70-100 ft | 48 | 5 | 846 | 19.71 | 19.29 |
| BIV-48 | 203,088 | 9,571 | 9,773 | 842.5 | 48 | 42 | Box beam 42x48; spans 80-110 ft | 48 | 5 | 878 | 21.22 | 20.78 |
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