Partial safety factors for dead load and imposed load combination for limit state of serviceability are
- A1.0 and 1.0Correct
- B1.5 and 1.5
- C1.2 and 1.2
- D1.0 and 0.8
Solution
Concept
Partial safety factors for serviceability
Step-by-step solution
1. Serviceability limit states use unfactored loads: γ = 1.0 for DL and LL.
Explanation
Deflection and cracking are checked under working (characteristic) loads.
Why the other options are wrong
1.5 and 1.2 are strength-limit factors.
Shortcut
Serviceability: 1.0; strength: 1.5.
Common mistake
Using 1.5.
Correct answer: A) 1.0 and 1.0