Civil and Hydraulic Engineering Section, Indian Institute of Science, Bangalore.
The calculations for the radial deflection of arches are encountered in the analysis of arch dams frequently. This procedure is rather lengthy when the foundations are deformable. In this paper a dimensionless parameter is established to indicate the crown deflections of circular arches on elastic foundations, when the arch carries a uniformly distributed radial load. Charts are presented which would enable the determination of these crown deflections with very little effort.