th abutments are different, the south abutment being 7.75feet higher. Only the la.tter one will be checked for stability.The volume of the body of the abutment is the area of the cross-section times the length, 22 feet. This amounts to 4,892 cubicfeet; and the weight is 4,892 x 145 = 709,000… … /2- 29 relation, P = iph£ t where h is the height and pn the unit weightof the equivalent fluid. In this case the total pressure against the abutment is J x 25 x 28.28£ x22 = 220,000 pounds, and acts 9.4 feetabove the bottom of the footing, seeFig. 13. By the usual method the cen-ter of gravity of…
Bridges · Concrete bridges · Iron and steel bridges · Theses
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