Answer Happy

USING THREE MOMENT EQUATION:
1. Analyze the bridge shown in the figure above. Using influence
diagrams, it has been determined that in order to produce the
maximum positive moment in Span 2, a uniform load,
w must be loaded fully in Spans 2 and 4. Determine the
reactions at the pier supports (assume abutments to be roller
supports and piers to be pin supports) and draw the shear and
moment diagrams.
2. Analyze the same bridge with the uniform load, w fully
loaded in spans 2 and 3. Determine the reactions and draw the shear
and moment diagrams.
Assume:
w = 11 kN/m
L = 15 m
L1 = 10 m
analyze as continuous beam ELEVATION L1 L L1 Span 1 Span 2 Span 3 Span 4 abutment pier