Answer Happy

SP #2 Part B Extra Credit. With the information below, actual train weights, & photos, calculate the forces in the all truss members of the bridge structure shown in the graphs attached. Use the method joints for the structural analyses of the truss bridge included indicate their force and if they are in tension or compression. A New Jersey Transit commuter line photo featuring GG1 #4877 with passenger cars along the North East corridor from NY to South Amboy. The above engine is now located in Boonton NJ at the United Railroad Historical Society. GGI #4877 Engine-80ft in Length Weight 237tons AREMA Manuel alternate loading consideration uniform distributed center load. Apply appropriate distributed load as two concentrated loads to joints E & G (Note: the weight of the engine and its equivalent uniform distributed load is in 3 dimensions, the train is located in the center of the bridge span)