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Sketch 1 3 2 1 40 24 IXI Z《一 52 Beam B Beam Shear wall Line Shear wall line 4 Shear wall Shear wall Line A Roof Framing Plan Purlins @ 8ft oc. Sub-purlins @ 2ft oc. typical Roof Framing at panel edges: 3x Typical panel layout: as shown Two 12'x 8' skylight openings (skylight weight is the same as roof DL). Centered between the gridlines A&B and B&C A А B 3ft Roof DL = 10psf Roof LL = 20psf Skylight DL = 10 psf (note: same as roof) 24 ft Wall (Concrete) DL = 90 psf Section A-A
GIVEN: One story warehouse with concrete walls and wood frame roof. Roof LL = 20 psf, Roof DL = 10 psf, Skylight DL = 10 psf (same as roof) Wall DL = 90 psf Cs = F/W = 0.25 (NOTE: This is a one story building) DETERMINE: 1. Sketch diaphragm beam FBD (free-body diagram) with all supports and determine diaphragm loading (LRFD) from building seismic force in North-South direction. (10 points) 2. Draw Shear Diagram (5 points) 3. Calculate Maximum Shear between gridlines 2 and 3. (5 points) 4. Draw Unit Shear Diagram (5 points) 5. Calculate Maximum Unit Shear between Gridlines 2 and 3, consider openings. (5 points) 6. Select structural sheathing, fasteners size and spacing at maximum unit shear locations between gridlines 2 and 3, (5 points) 7. Determine how far from Gridlines 2 or 3 the nail spacing between gridlines 2 and 3 can be changed to 4-4- 6 spacing. (5 points) 8. Calculate Maximum Moment. (3 points) 9. Determine Maximum Diaphragm Chord Force between gridlines 2 and 3 (2 points) CLEARLY LABEL EACH PART OF THE SOLUTION 2 3 14 NO 40 А N Beam B Beam E Sheer wall Line Shear wall Line Shear wall Line Shear wall Line Roof Framing Plan