Difficulty: Easy
Correct Answer: overhanging beam
Explanation:
Introduction:
Correct terminology for beam types is essential for selecting analysis models and detailing. This question differentiates among common classifications based on support configuration and span geometry.
Given Data / Assumptions:
Concept / Approach:
An overhanging beam is a simply supported beam with one or both ends projecting beyond the supports. This differs from a cantilever (fixed at one end, free at the other) and from a continuous beam (more than two supports within the clear span).
Step-by-Step Solution:
Identify support types: at least one simple support exists within the member length.Check geometry: the physical length exceeds the distance between the outer supports.Conclude: beam is “overhanging”.
Verification / Alternative check:
Classical beam catalogs and bending moment diagram shapes for overhangs (with negative end regions) corroborate the definition.
Why Other Options Are Wrong:
Common Pitfalls:
Confusing the negative bending region near the overhang with a cantilever; the presence of an internal support distinguishes the two.
Final Answer:
overhanging beam
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