In the design of steel structures, which of the following is not a correct combination of loading?
- ADead load + Live Load
- BDead Load + Live Load + Erection LoadCorrect
- CDead Load + Live Load + Wind Load
- DDead Load + Erection Load
Solution
Concept
Load combinations for steel design
Step-by-step solution
1. IS 800:2007 combines DL + IL, DL + IL + WL/EL, DL + WL/EL and DL + ER (erection) separately. 2. DL + LL + Erection load is not listed as a combination.
Explanation
Erection loads are considered with dead load only (and not along with the full live load).
Why the other options are wrong
A, C and D are standard combinations.
Shortcut
Erection load goes with dead load only.
Correct answer: B) Dead Load + Live Load + Erection Load