Difficulty: Easy
Correct Answer: continuous beam
Explanation:
Introduction:
Support conditions define common beam types and their analysis methods. Recognizing a beam spanning over multiple supports is foundational for statically indeterminate analysis.
Given Data / Assumptions:
Concept / Approach:
A beam that extends over three or more supports is termed a continuous beam. Internal moments and shears depend on continuity across supports and require compatibility along with equilibrium for solution.
Step-by-Step Solution:
Verification / Alternative check:
Indeterminacy check: each additional support beyond two generally introduces indeterminacy requiring slope-deflection, moment distribution, or matrix methods.
Why Other Options Are Wrong:
Common Pitfalls:
Confusing “overhanging” with “continuous.” Overhang concerns extension beyond a support, not the number of supports.
Final Answer:
Discussion & Comments