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analyze as continuous beam ELEVATION t L1 L 41 Span 1 Span 2 Span 3 Span 4 abutment pier USING THREE-MOMENT EQUATION: 2. 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. 3. 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 = 8 kN/m L = 12 meters L1 = 7 meters