Solve the following three questions of the beam ABCD. Note that A is a fixed end; B is apin connection; C is a roller support; and D is a free end.
1) Sketch the quantitative influence line for the bending moment at point A;
2) Verify the maximum bending moment that can be developed at point A in the beam Because of : a concentrated moving load of 4kN and a uniform moving load of 2kN/m;
3) Sketch the bending moment diagram for the beam ABCD subjected to the loading obtained from 2). (The location and magnitude of the maximum bending moment must be determined)