Question

Please take me step by step. There's still some methods I don't fully understand and don't know when/why to use. Thank you SO much

Spring 2018 CE 262-Structural Mechanics Prof. T. Truster Name: HOMEWORK ASSIGNMENT 10 Assigned: February 5th. Due: February 9h, start of class. Reading: Hando on influence lines posted to Canvas The roof truss serves to support a crane rail which is attached to the bottom cord of the truss as shown. Detemine the maximum live force (tension or compression) that can be developed in member GF, duc to the crane load of l5 kips. Specify the position x of the load. Assume the truss is suppored at A bya pin and at E by a roller. Also assume that all members are pin-connocted at the gusset plates 12 ft 15 k 1211 12 ft 12 ft 12 ft Draw the influence lines for (a) the vertical reaction at A, (b) the shear at C, and (c) the moment at D. Assume that the support at B is a roller and A is a pin Use the graphical approach, and find the magnitude using an equilibrium analysis. 02 10 ft 10 ft

Q2: Draw the influence lines for (a) the vertical reaction at A, (b) the shear at C, and (c) the moment at D. Assume that the support at B is a roller and A is a pin. Use the graphical approach, and find the magnitude using an equilibrium analysis. 1

Answer 1

35- 35 A -35- 35 35 IFL 35 35 35 35 İFL -0-286 四,286x . 35 25 25 sx< 35 35 35

15 . LFL