search
arrow-left Previous
Next arrow-right
Q: The short-term deflection is calculated using
  • A. MI of cracked section
  • B. gross MI
  • C. effective MI
  • D. None of the above
Correct Answer: Option C - Short term deflection is calculated using the effective moment of inertia (MI). Short term deflection of prestressed members are also known as instantaneous deflections governed by distribution of bonding moment through the span and flexural moment throughout the span and flexural rigidity of member, these theorems are applied for determining the deflections due to prestressing force, imposed loads and self weight.
C. Short term deflection is calculated using the effective moment of inertia (MI). Short term deflection of prestressed members are also known as instantaneous deflections governed by distribution of bonding moment through the span and flexural moment throughout the span and flexural rigidity of member, these theorems are applied for determining the deflections due to prestressing force, imposed loads and self weight.

Explanations:

Short term deflection is calculated using the effective moment of inertia (MI). Short term deflection of prestressed members are also known as instantaneous deflections governed by distribution of bonding moment through the span and flexural moment throughout the span and flexural rigidity of member, these theorems are applied for determining the deflections due to prestressing force, imposed loads and self weight.