The load carrying capacity of a column designed by working stress method is 1000 kN. The ultimate collapse load of the column is:
Show Hint
- 1000 kN
- 1500 kN
- 3000 kN
- 662.5 kN
The Correct Option is B
Solution and Explanation
Step 1: Understand the relationship between Working Load and Ultimate Load.
In standard structural design practice, the ultimate load ($P_u$) is roughly 1.5 times the working load ($P_w$) for typical load combinations (like Dead Load + Live Load). \[ P_u = \text{Load Factor} \times P_w \]
Step 2: Calculate the collapse load.
Given Working Load = $1000 \text{ kN}$. Using the standard load factor of 1.5: \[ P_u = 1.5 \times 1000 = 1500 \text{ kN} \]
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