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9.5 An engineer is designing the framing for a residential building. See the following diagram for the general building configuration. The overall building width is 34 ft. The second floor joists consist of 17-ft long, 12"-deep TJI's, which are supported at one end on the exterior walls. A beam is needed at middle of the floor plate for supporting at the other end of the joists. .Floor design loads: Dead load = 12 psf . Building dimensions: Building width = 34 ft Live load = 40 psf Distance between support posts 21 ft a) Refer to the following Glulam load table from Boise Engineered Wood Products Co. and select an appropriate size glulam beam. One Floor Beam Span Tables Support Spacing Width Required Beam Depths and Bearing Lengths [in] Width of Building Segment [feet] Floor Load Beam [ps!] KEY: Beam Breadth [in] X Beam Depth [in] End Support / Intermediate Support Bearing Length Requirements [in] Load Spacing Duration %% Live Dead [Feet) 24 28 32 36 40 44 3.125 x 135 245.8 3.125 x 15 2.7/68 3.125 x 16.5 3.1/7.7 3.125 x 165 3587 3.125 x 18 3.9/9.6 3.125 x 18 4.3/10.6 12 5.125 x 10.5 1.5/3.6 5.125 x 12 1.714.1 5.125 x 12 1.94.7 5.125 x 135 2253 5.125 x 135 24/59 5.125 x 15 2.66 3.125 x 16.5 27/6.8 3.125 x 18 327.9 3.125 x 18 3.69.0 5.125 x 15 2562 5.125 x 16.5 286.9 5.125 x 16.5 3.1/7.6 14 5.125 x 135 1.7/4.1 5.125 x 13.5 2.0148 5.125 x 15 225.5 6.75 x 135 1.947 6.75 x 13.5 2.1/5 2 6.75 x 15 2.35 3.5 x 18 3.1/7.7 5.125 x 15 2255 5.125 x 16.5 2563 5.125 x 165 2.9/7.1 5.125 x 18 327.9 5.125 x 18 3.5/8.6 16 5.125 x 15 1.94.7 6.75 x 13.5 1.7/42 6.75 x 15 1.94 6.75 x 15 225.5 6.75 x 15 2460 6.75 x 16.5 2.7/6.6 5.125 x 16.5 225.3 5.125 x 18 2562 5.125 x 18 29/7.1 5.125 x 19.5 3280 5.125 x 19.5 368.8 5.125 x 21 3.9.9. 100% 40 12 18 6.75 x 15 1.6/4.0 6.75 x 15 1.9(4.7 6.75 x 16.5 2254 6.75x 16.5 24/6.0 6.75 x 18 2.7/67 6.75x 18 3.0/7 5.125 x 18 235.8 5.125 x 19.5 2869 5.125 x 19.5 3.2/79 5.125 x 21 3688 5.125 x 21 409.8 5.125 x 225 48/11.9 20 6.75 x 165 1.84.5 6.75 x 16.5 2.1/52 6.75 x 18 24/6.0 6.75 x 18 2767 6.75 x 19.5 3.0/7 5 6.75 x 195 3.382 5.125 x 19.5 2663 5.125 x 21 3.1/7.6 5.125 x 22.5 3.58.6 5.125 x 225 3997 5.125 x 24 4,3/10.8 6.75 x 225 3.69.0 22 6.75 x 18 204.9 675 x 18 2358 6.75 x 19.5 2.7/6.6 6.75 x 21 3.0/7 4 6.75 x 21 3.382 5.125 x 21 286.9 5.125 x 22.5 3.3/8.2 5.125 x 24 3.894 6.75 x 22.5 3.28 6.75 x22.5 3.6/8.9 6.75 x 24 4.09.8 24 6.75 x 195 2254 6.75 x 19.5 2563 6.75 x 21 2972