The three-hinged open-spandrel arch bridge shown in the figure below has a parabolic shape and supports the uniform load . Show that the parabolic arch is subjected only to axial compression at an intermediate point D along its axis. Assume the load is uniformly transmitted to the arch ribs. y
The three-hinged open-spandrel arch bridge shown in the figure below has a parabolic shape and supports the uniform load . Show that the parabolic arch is subjected only to axial compression at an intermediate point D along its axis. Assume the load is uniformly transmitted to the arch ribs. y
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The three-hinged open-spandrel arch bridge shown in the figure below has a
parabolic shape and supports the uniform load . Show that the parabolic arch is
subjected only to axial compression at an intermediate point D along its axis.
Assume the load is uniformly transmitted to the arch ribs.
7 kN/m
В
D
- 7.5
y=
(15)
7.5 m
7.5 m, 75 my
15 m
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