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Actual Size Nominal Size Weight (b/ (kg/m) (in x in) (in x in) (mm x mm) 1 x 1 3/4 x3/4 19 x 19 0.14 1 x2 3/4 x 1 1/2 19 x 30
3. Assume the joists have an overhang (a) of 5 feet and only the uniform load of 117 lb/ft. a. Determine the reactions, shear
Actual Size Nominal Size Weight (b/ (kg/m) (in x in) (in x in) (mm x mm) 1 x 1 3/4 x3/4 19 x 19 0.14 1 x2 3/4 x 1 1/2 19 x 30 0.27 1 x 3 3/4 x 2 1/2 3/4 x 3 1/2 19 x 64 0.47 1 x 4 19 x 89 0.64 1 x 6 3/4 x5 1/2 19x 140 1.00 1 x 8 3/4 x 7 1/4 19x 184 132 19x 235 19 x 286 1 x 10 3/4 x 9 1/4 1.69 1 x 12 3/4 x 11 1/4 2.05 0.55 2 x2 2 x3 1 1/2 x1 1/2 38 x 38 1 1/2 x 2 1/2 38 x 64 0.94 2 x 4 1 1/2 x3 1/2 38 x 89 1.28 2 x6 2x8 1 1/2 x5 1/2 1 1/2 x7 1/4 38 x 140 2.00 38 x 184 2.64 2x 10 1 1/2 x9 1/4 38 x 235 3.37 4.10 2x 12 1 1/2 x 11 1/4 38 x 286 2x 14 1 1/2 x 13 1/4 38 x 337 4.83 BCI Joists BCI 60 2.0 1IC BCI® 5000 1.7 BCI 6000 1.8 BCI 90 2.0 1½T BCI 6500 1.8 1 D 1% IG 1" ID 94 11%" 14" 16 94 11%" 14 16" 11%" 14" 16" 11%" 14" 16" 18" 20 9 11%" 14 16" 2 2%6" 2%16" 2%A6* 3/4"
3. Assume the joists have an overhang (a) of 5 feet and only the uniform load of 117 lb/ft. a. Determine the reactions, shear diagram, moment diagram and the maximum moment from your moment diagram. b. Assuming the floor joists were the sawn lumber size of 2x14, determine the maximum positive and negative bending stresses in the joist c. Assuming the l-Joists of BCI 6500, determine the maximum positive and negative bending stress in the l-joist due to the maximum moment from the moment diagram. d. Will either of the joists break? A C B
engineering   Civil-Engineering   
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