In a three-hinged parabolic arch with a span of length l and a rise of height h, where one hinge is positioned at the crown, at what distance from the crown does the maximum bending moment caused by a single concentrated load occur?

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Subject: Theory of Structurescivil-engineering-mcqs › theory-of-structures
Published: 17 Jan 2019
Last updated: 28 May 2026

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One quarter of the span length (l/4)One quarter of the rise height (h/4)At the full span length (l)At the entire span length (l)None of the above

Explanation

For a three-hinged parabolic arch with a hinge at the crown, the maximum bending moment due to a concentrated load occurs at a distance equal to the full span length (l) from the crown. The other options represent fractions of the span or rise, which do not correspond to the location of the maximum moment in this case.

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In a three-hinged parabolic arch with a span of length l and a rise of height h, where one hinge is positioned at the crown, at what distance from the crown does the maximum bending moment caused by a single concentrated load occur?

Explanation

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