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').
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')
