A uniform live load of 3 kN/m and a single live concentrated force of 45 kN can be placed on the haunched girder. Illustrate the Influence Line and determine the maximum live negative moment at A.

A 6m long beam is supported by hinge at point A(left end) and by roller at point C (3m right of A). A unit load moves along the beam coming from the left end, and point B and D are 2m and 4m from point A respectively.1. Find the ordinate at point D of the influence line diagram for reaction at the left end. a. -1/3b. -2/3c. -1/2d. -3/42. Find the ordinate at point D of the influence line diagram for shear at B. a. -1/3b. -2/3c. -1/2d. -3/43. Find the ordinate at point D of the influence line diagram for moment at B. a. -1/3b. -2/3c. -1/2d. -3/4

Please answer the problem attached image. Thank you very much. About application of Influence line

A snow load of 3 kPa rests on a roof whose trusses are spaced 3m on center. Find: 1. Determine the magnitude of the equivalent concentrated load acting at point C.2. Determine the force at member BF. Specify if tension or compression.3. Determine the reaction at E