Problem 2 (Pro 3.42 Textbook modified): Using the method of joints, determine the force in members BH, BE, and HE of the truss shown. 4 EQUAL PANBLS & 12'= 40

Determine: 1. The interior and end panel point loads and reactions on the truss 2. The maximum tension force and maximum compression force in the diagonals, (and identify which they are). 3. The maximum tension force and maximum compression force in the verticals, (and identify which they are). 4. The maximum tension force and maximum compression force in the chords, (and identify which they are). 5. Using a square cross-section (b = h, I = b*/12)of a material with an allowable stress of 15 ksi, and a Young's modulus of E = 2,000,000 psi, size the "worst-case" top chord, bottom chord, diagonal and vertical for crush and bending to the nearest inch. Use a factor of safety for crush of 1.67, and for buckling of 1.9, 6. If you REMOVE the vertical DK, resize the worst-case top chord and compare it to your previous answer... Total distributed load = 240k. Span = 96', depth = 12'. Hybrid configuration of verticals and diagonals. 日 A G в D E F

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4. Determine the force in member GF, GD, and CD of the truss.