Determine the vertical shear force resisted by the top flange of the beam at 200 lb/ft C D 2 in. 8 in.

4. Determine the absolute maximum shear and moment in a simply supported bridge deck from AASHTO HS-20 truck loading. Note: Point A is pin supported and point B is roller supported. 100 ft B 8 k 14 ft 32 k 30 ft 32 k

Problem 1: If the beam is made from wood having an allowable shear stress talow = 500 psi, determine the maximum magnitude of P. Set d = 5 in. |2P |B -2 ft- 2 in.

A beam ABC with an overhang from B to C is constructed of a C 10 x 30 channel section with flanges facing upward (see figure). A В C /I 2.381 in. C0.649 in. 3.03 in. C -10.0 in. The beam supports its own weight (30 Ib/ft) plus a triangular load of maximum intensity q, acting on the overhang. The allowable stresses in tension and compression are 23 ksi and 18 ksi, respectively. Assume the distance L equals 5 ft. (a) Determine the allowable triangular load intensity q0, allow: (Enter the magnitude in Ib/ft.) Ib/ft (b) What is the allowable triangular load intensity q0, allow if the beam is rotated 180° about its longitudinal centroidal axis so that the flanges are downward? (Enter the magnitude in Ib/ft.) Ib/ft