S e c t i o n 1 3 - P a g e 1 May 2013 Lattice Gir ders and Steel Ar ches 3 bar type Dimensions O.P . T ype Bar Size W eight [lbs/ft] H [in] B [in] e [in] H1 [in] Ix [in 2 ] Sx [in 2 ] ly [in 2 ] By [in 2 ] Joint Plate Foot Plate Size [in] Length [in] Unit Wt[lbs] Size [in] Unit Wt [lbs] S 3 S 2 S 1 50 6 8 0.39° 6.72 3.70 3.94 2.01 3.441 1.716 2.324 1.180 L4 3 3 / 8 4 9 / 16 3.2 3 / 8 5 5 2.7 6 10 8.26 3.94 1.88 4.676 2.226 2.395 1.216 4 9 / 16 3.2 70 6 8 0.39° 6.95 4.50 5.60 2.42 2.75 5.544 2.295 5.064 1.846 5 5 / 16 3.5 3 / 8 6 6 3.8 6 10 8.59 4.77 2.20 7.376 2.886 5.135 1.867 5 1 / 2 3.7 8 11 11.83 5.16 2.69 12.108 4.465 8.226 2.991 5 3 / 4 3.9 95 6 8 0.39° 7.07 5.50 7.09 2.94 3.76 8.937 3.036 8.950 2.526 5 9 / 16 4.4 3 / 8 7 8 6.0 6 10 8.70 5.77 2.59 11.741 3.751 9.028 2.548 6 3 / 4 4.6 8 11 12.05 6.16 3.18 18.883 5.854 14.840 4.188 7 1 / 16 4.8 115 6 8 0.47° 7.94 6.25 8.66 3.37 4.50 12.182 3.636 13.906 3.21 L5 3 1 / 2 7 11 / 16 8.0 3 / 8 8 9 1 / 2 8.1 6 10 9.58 6.52 2.91 15.849 4.416 13.985 3.229 7 13 / 16 8.1 8 11 12.92 6.91 3.69 25.208 6.953 23.342 5.390 8 1 / 8 8.4 130 6 8 0.47° 7.76 6.87 8.66 3.69 5.12 15.015 4.068 13.906 3.211 8 1 / 8 8.4 3 / 8 8 9 1 / 2 8.1 6 10 9.39 7.14 3.15 19.379 4.929 13.977 3.229 8 5 / 16 8.6 8 11 12.73 7.53 3.93 30.623 7.794 23.342 5.390 8 3 / 4 9.3 www .dsiundergr ound.com