ofsection and is called See Fig. 21. The resultant of the verticalforces acts through a point 6.85 feetfrom the heel of the ahutment. The forceP acts through a point 9 feet 8 inchesahove the base of footing. The resultantof the vertical and horizontal forcespierce the base at a distance 8 feet-… … ■^ 1 in vvhich W is total v/eight supported hy soil,1 is length of footing, d is the distance from the center that the resultantof all forces pierces the hase. The plus and minus sign gives thepressure at the toe and heel respectively. The pressure diagrams for the hridge loaded and unloadedalso…
Bridges · Iron and steel bridges · Theses
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![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-213-138.webp)
