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8.25 kip

445.5 kip-ft

445.5 kip-ft

Figure 7.31A. (Continued)

Figure 7.31A. (Continued)

Having determined the equivalent loads, we can proceed to determine the bending moments in our statically indeterminate beam, as for any continuous beam. As mentioned earlier, we use the formulas for continuous beams given in standard textbooks. One such formula follows.

Continuous Beam with Two Equal Spans and Uniform Load on Both Spans

Continuous Beam with Two Equal Spans and Uniform Load on Both Spans

In our case, w = Wp = 1.225 kip-ft, l = L = 54 ft. Therefore,

WpL2 1.225 x 542

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