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4 cards from this section. Quick, good the night before a test.
What is the normal distribution?
Think of a bell curve.
Define reliability index.
What does it tell you about safety?
What property characterizes the normal distribution?
Think about the bell curve shape.
The reliability index of a structure is calculated to assess its:
Consider the implication of low vs high index.
Given that a concrete structure has an expected load of 750 MPa, and the mean resistance is 900 MPa with a standard deviation of 80 MPa, what is the reliability index?
Use Z-score concepts to find probabilities.
Discuss why understanding the normal distribution impacts engineering decisions on safety factors.
Think about practical implications in structural design.
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