A 3 hinged parabolic arch subjected to uniformly distributed load through the span length L. The maximum bending moment will occur:
A
At quarter span of arch
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B
Zero througout span
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C
At 38th span of arch
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D
At crown
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Solution
The correct option is BZero througout span A three hinged parabolic arch subjected to uniformly distributed load is not subjected to bending moment at any cross section. It supports the load in pure compression.