. The Encyclopaedia Britannica; ... A dictionary of arts, sciences and general literature. Fig. 67. that shown in fig. 66. The top and bottom members arein straight lin%s, and consequentlythe lines indicating the stresses onthe bottom member are superim-posed one on the other instead ofradiating from Y; the loads XAand KZ are shown as directly borneby the piers. It is clear that if theroad is supported by a platformreaching from the end joints to thepiers, half of the load on these partsof the platform will be directlysupported on the piers; These end _ loads are shown also in the subse- * que


. The Encyclopaedia Britannica; ... A dictionary of arts, sciences and general literature. Fig. 67. that shown in fig. 66. The top and bottom members arein straight lin%s, and consequentlythe lines indicating the stresses onthe bottom member are superim-posed one on the other instead ofradiating from Y; the loads XAand KZ are shown as directly borneby the piers. It is clear that if theroad is supported by a platformreaching from the end joints to thepiers, half of the load on these partsof the platform will be directlysupported on the piers; These end _ loads are shown also in the subse- * quent diagrams. _ The truss is generally built of equilateral c J X A L14 A // rA/° \^ I \/^ /V \ V °\/ \\ 0 K Z / ^ .triangles, and the inclination of the Bracing to the horizonshould never bo less than 45°. Oaso 2. Warren girder loaded on top and bottom, fig,68. 686 shows the polygon of external forces, Fig. eSe. shows half the reciprocal figure. These figures have beenadded to facilitate the comprehension of the completereciprocal shown by 68a. Case 3. .Warren girder with one load,not central, fig.


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectencyclo, bookyear1902