Civil Engineering MCQAE Level Civil Engineering
The shape factor for a solid rectangular cross-section is:
Structural AnalysisShape FactorMEDIUM
Choose the correct answer
A
1.0
B
1.5
C
1.7
D
2.0
Correct Answer
B. 1.5
Why is this the answer?
Shape factor = Z_p/Z_e = (bd²/4)/(bd²/6) = 6/4 = 1.5. The plastic section modulus Z_p = bd²/4 and elastic section modulus Z_e = bd²/6.
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