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2 cards from this section. Quick, good the night before a test.
What is a tower crane used for?
Think about applications in high-rise construction.
Name two types of tower cranes.
Recall the different mechanics of how they operate.
What type of tower crane allows for the structure to rotate at the base?
Consider how the crane's rotation affects its operation.
True or False: Top slewing cranes can reach unlimited heights.
Think about the applications of these types of cranes.
A construction site requires a tower crane that can lift 10 tons. Calculate the required counterweight if the distance from the load line to the fulcrum point is 5 meters, with additional weight of boom being 2 tons and distance from the center of the boom being 2 meters.
Balance the moments to isolate the counterweight term.
You have a luffing boom crane operating in a narrow alley beside a building. If it can adjust its angle by 30 degrees and lift a maximum load of 5 tons at 10 meters, what can you conclude about its effectiveness compared to a fixed boom?
Think about operational benefits in restricted spaces.
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