The ordinates of the moment influence line at midspan \(B\) of a 2 -span continuous beam are provided at every one-tenth of the span in Figure P12.56.

(a) Position the AASHTO HL-93 design truck and lane loads in Figure 12.25f to produce the maximum moment.

(b) Position the AASHTO HL-93 design tandem and lane loads shown in Figure 12.25 \((\mathrm{g})\) to produce the maximum positive moment. Which loading is more critical?

Transcribed Image Text:

0 0.038L 0,076L 0.116L 0.158L 0.203L 0.152L 0.105L 0,064L 0.028L 0 0.021L 0.036L 0.045L 0.048L 0.047L 0.042L 0.034L 0.024L 0.012L 0 + 351 35' + L = 70' B D