Page 221 - Buried Pipe Design
P. 221

Design of Pressure Pipes  195


















































         Figure 4.5 Combined loading curves for 24-in asbestos-cement pressure pipe.
                                                   2
         (Reprinted, by permission, from ANSI/AWWA C403-98. Copyright © 1998, American
         Water Works Association.)
         5. Shear loadings
         6. Poisson’s effects


         Longitudinal stresses
         Pressure pipes, as well as gravity-flow pipes, are subject to various soil
         loadings and nonuniform bedding conditions that result in longitudi-
         nal bending or beam action. This subject was discussed in Chap. 2.
   216   217   218   219   220   221   222   223   224   225   226