Forces acting on structures Flashcard

Front

What is the center of gravity in a strong structure?

Back

A strong structure has a low center of gravity.

Front

What internal force caused the Tacoma Narrows bridge to collapse?

Back

The Tacoma Narrows bridge collapsed due to torsion.

Front

Which force is crucial for designing tall buildings to withstand wind?

Back

Shear force is most important for designing tall buildings to withstand wind.

Front

What type of force are hurricanes considered?

Back

Hurricanes are considered an external force.

Front

What type of force do helmets protect against?

Back

Helmets protect against compression force.

Front

Define 'tension' in the context of forces.

Back

Tension is the force that is transmitted through a string, rope, or wire when it is pulled tight.

Front

What is 'compression' in structural engineering?

Back

Compression is the force that pushes or pulls materials together, causing them to shorten.

Front

Explain 'torsion' as a type of force.

Back

Torsion is the twisting force that occurs when an object is rotated around its axis.

Front

What does 'shear' force refer to?

Back

Shear force refers to the force that causes parts of a material to slide past each other.

Front

Why is a low center of gravity important for structures?

Back

A low center of gravity helps to stabilize structures and prevent them from tipping over.