Gantry girders are designed to resist
- Avertical load from cranes
- Blongitudinal and vertical loads
- Clateral, longitudinal and vertical loadsCorrect
- Dlateral and longitudinal loads
Solution
Concept
Loads on gantry girders
Step-by-step solution
1. Gantry girders carry vertical crane loads, lateral loads (surge) and longitudinal loads (braking).
Explanation
All three components of the crane load must be resisted.
Why the other options are wrong
The other options omit one of the load types.
Shortcut
Vertical + lateral (surge) + longitudinal (braking).
Common mistake
Choosing vertical only.
Correct answer: C) lateral, longitudinal and vertical loads