Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 589
points B and B', while the others fall out- metrical with reference to the vertical at ward, turning about C and C. If the A, they must be horizontal and must act piers are not sufficiently stable they may in the plane of the figure. turn with N and N'. In this case the ro- Fig. 3. tation is about… … " p' == distance of F' from C. " R == absolute value of mutual reaction be- ing takes place at the extrados; on the tween A B and B C. sides, at the intrados; and on the side of " Kz= horizontal projection of R. the extrados at the springings. In this " Ry= vertical " " " " R'= reaction of pier…
Engineering
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