Question

Chapter 8: (15%) Problem 1 (Pro 8.3 Textbook modified): A 12-foot-long single overhang beam is loaded as shown. Assuming a W8 x 35 determine: 1. The maximum tensile and compressive bending

stress. 2. The average web shear stress The uniformly distributed load includes the weight of the beam. Given: A992 steel Fb = 30 ksi., Fv = 20 ksi. For W8 x 35 section properties see Table A3 (Textbook Appendix). 5K bf=8.02" tw=0.310". t=0.495" d = 8.12" t₁ = 0.495" W8x35; (1, -127 in., S, -31.2 in.³, d-8.12", c=4.06") A 7.8k +7.8 +DI 6' 1° 2⁰ 5k -3.2 +1.8 W=1*/PT. 6' 1° 28.8k-ft (0 = 1k/t 2⁰ -8k-ft 4' 13.2k +4 -9.2 1° 2⁰ 'V' 'M'

Fig: 1