The pavilion shown in the photo consists of an open roof supported by five trussed frame...

The pavilion shown in the photo consists of an open roof supported by five trussed frames. Each of these frames consists of members CD and DE that have a cross-sectional area of and a moment of inertia of . All the other members have a cross-sectional area of and moment of inertia of . The joints are fully welded, and the columns rest on base plates that are bolted onto a concrete foundation. The wind load acting on one side of the roof and distributed to the frame is 1.20 kN/m. The centerline geometry of the structure is shown in the figure. Establish a structural model of the frame and justify any assumptions you have made. Perform a computer analysis to determine the force at each joint. Use the results and draw the moment diagram for the horizontal member AB. As a partial check of the results, calculate the tensile force in this member assuming the frame system is pin connected and acts as a truss. Neglect the weight of the members and take E = 200 GPa.