(Answered) Problem 1 for the following truss each member has the same

Engineering

Problem 1: For the following truss, each member has the same EA. All members are pin connected at their joints.

(i) Under the loads at C and D, determine the displacement of joint D along the CD direction (20')

(ii) Without consideration of the loads at C and D, if the member CB is fabricated 1 inch too short, determine the horizontal displacement of joint D (20').

2333_displacement of joint D along the CD direction.jpg

Problem 2: For the following beam with EL being constant. Assume the support at A is a pin and C is roller.

(i) Determine the maximum deflection of the beam and its location (20')

(ii) Now another roller is added at B under the beam to reduce the deflection of the beam. Calculate the force at the roller B and the maximum deflection of the beam again (40')

2230_Determine the maximum deflection of the beam.jpg

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