PROBLEM 12.20 The flat-bed trailer carries two 1500-kg beams with the upper beam secured by a cable. The coefficients of static friction between the two beams and between the lower beam and the bed of the trailer are 0.25 and 0.30, respectively. Knowing that the load does not shift, determine (a) the maximum acceleration of the trailer and the corresponding tension in the cable, (b) the

A beam is loaded with a uniformly distributed load between the two roller supports and a single load at the overhang. It also has two internal hinges - one midway between the fixed support and the first roller support and the other midway between the two roller supports. Refer to the figure below for the magnitude of the loadings and dimensions. a) Draw the FBD of the beam and determine if the beam is statically determinate or indeterminate. 75 kN/m 100 KN 12.5 m 12.5 m 7.5 m 7.5 m 10 m b) If the beam is statically determinate, analyse it using the equilibrium equations. If the beam is statically indeterminate, analyse it using structural indeterminate methodologies such as setting up and solving the equations of equilibrium, equations of compatibility, and force-displacement relations. 1. Draw the FBD for each element of the beam and determine the axial forces, shear forces, and bending moments for each element. 2. Once all forces and moments are calculated, draw the FBD of the whole…

A rope ABCD is looped over two pipes as shown. Knowing that the coefficient of static friction is 0.25, determine the smallest value of the mass m in kg for which equilibrium is possible. the corresponding tension in portion BC of the rope .

A propped beam shown below is loaded with UDL along its entire span. Determine the following: a. Determine the reaction (R) b. Determine the end moment at wall (Mc) C. Determine the tangential deviation at point B with respect to point C (t B/C) A d 4kN/m Ţ 3M