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3 cards from this section. Quick, good the night before a test.
What is flexural failure?
Think about what happens when a beam is bent too much.
Where does cracking typically initiate in flexural failure?
Consider the part of the beam that experiences the most stress during bending.
What initiates flexural failure in a beam?
Consider where stress accumulates during bending.
True or False: An over-reinforced beam will crack before it crushes.
Think about the relationship between reinforcement and failure mode.
Given a simply supported beam with a span of 10 meters and a concentrated load of 20 kN at its midspan, calculate the required area of steel reinforcement to prevent flexural failure, assuming a concrete compressive strength of 25 MPa and tensile strength of 2.5 MPa.
Use the equation for bending moment: M = WL/4 for concentrated load.
Analyze an existing beam that has started to show flexural cracks. Propose a remedial strategy for enhancing its structural integrity for future uses.
Think about rehabilitation techniques used in construction.
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