The wood beam supports loads of w= 480 lb/ft and P = 1160 lb on span lengths of Lag = 8.8 ft, Lec=4.4 ft, and Lco= 4.4 ft. The bean cross section has dimensions of by - 1.1 in., d = 3.3 in., b2 = 4.6 in., and d2 = 8.35 in. Determine the magnitude and location of: (a) the maximum horizontal shear stress in the beam. (b) the maximum tensile bending stress in the beam. di d2 A LAB LBc LCD b2 b1 Answer: (a) Tmax= psi (b) Omax psi

The simply supported wood beam carries a uniformly distributed load of w = 700 lb/ft, where LAB= 8.0 ft and LBC = 16.0 ft.  The beam cross-sectional dimensions are b = 6.2 in., d = 20.4 in., yH = 5.6 in., and yK = 8.0 in.  Section a–a is located at x = 4.0 ft from A.(a) At section a–a, determine the magnitude of the shear stress in the beam at point H.(b) At section a–a, determine the magnitude of the shear stress in the beam at point K.(c) If the allowable shear stress for the wood is 140 psi, what is the largest distributed load w that can be supported by the beam? Draw a horizontal line through point H. Use the area above this line to calculate the first moment of area associated with point H.Answer:QH =      in.3

A 572 Grade 65 steel with Fy = 448 MPa is used as a simple beam to carry a concentrated load P at the center of its span on a 6m simply supported span. The beam is W 12 x 14 section having the given properties shown. Properties of W 12 x 14 Weight of beam = 204.76 N/m Area = 2658 mm2 Depth (d) = 302.514 mm Flange Width (bf) = 100.787 mm Flange Thickness (tf) = 5.690 mm Web Thickness (tw) = 5.029 mm Section Modulus = 242 529 mm3

Find all member forces and state whether tension or compression   (Hand written please )