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2 cards from this section. Quick, good the night before a test.
What is an overturning moment?
Think about what happens when you lift something heavy on one end.
What does a top slewing crane allow?
Consider the positioning of the slewing mechanism.
What is an overturning moment?
Think about what happens when an unbalanced load is lifted.
True or False: Bottom slewing cranes can operate safely beyond 120 meters in height without bracing?
Consider the stability requirements of cranes.
A construction site requires a tower crane to lift a load equal to 1500 kg at a distance of 30 meters from the fulcrum point. Calculate the overturning moment and discuss whether the crane can safely lift the load.
Remember the balancing moments we discussed!
Investigate the impact of wind speed on lifting operations. If the maximum safe wind speed for a tower crane is 72 km/h, describe the steps to take if conditions exceed this threshold.
Consider what practical measures are in place for safety!
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