Essentials in the theory of framed structures . ed to the drum at 8 points instead of at 4points, as in the previous case. This arrangement gives amore even bearing. In the diagrams here shown, the centerpivot receives neither dead nor live load. It is better to framethe structure so that from 15 to 20 per cent of the load istransmitted to the center pivot through radial girders. In anycase each truss is supported at two points over the circularpier, as illustrated in Fig. 211a. The reactions for the center-bearing bridge of the previoussection were determined by assuming that the span functio
Essentials in the theory of framed structures . ed to the drum at 8 points instead of at 4points, as in the previous case. This arrangement gives amore even bearing. In the diagrams here shown, the centerpivot receives neither dead nor live load. It is better to framethe structure so that from 15 to 20 per cent of the load istransmitted to the center pivot through radial girders. In anycase each truss is supported at two points over the circularpier, as illustrated in Fig. 211a. The reactions for the center-bearing bridge of the previoussection were determined by assuming that the span functionsas a beam of constant cross section, continuous over three sup-ports; no allowance being made for deflection due to shear. 324 THEORY OF FRAMED STRUCTURES Chap. VIII It was shown that the reactions thus computed by continuousgirder formulas, compared very favorably with the true reac-tions determined after the design had been made. Such is notthe case when the continuous girder formulas of Art. 167 are Ui Vz Uj U4. Us Us Ut Us U9 Uio Uii U|g.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectstructu, bookyear1922
