Bridges: Arch vs. Beam

What type of force primarily acts on the roadway of a beam bridge?

• Tension

• Compression

• Shear

• Torsion

Which of the following is an advantage of beam bridges?

• They can span very long distances.

• They require minimal maintenance.

• They are suitable for all types of terrains.

• They can carry very heavy loads without support.

What is a major disadvantage of beam bridges?

• They are too flexible.

• They cannot span very wide distances without support.

• They are very expensive to build.

• They cannot withstand heavy loads.

What is a key benefit of arch bridges?

• They are the cheapest type of bridge to construct.

• They require no maintenance.

• They can span longer distances than beam bridges without support.

• They are lightweight and easy to build.

Which force is efficiently managed by the shape of an arch bridge?

• Tension

• Compression

• Shear

• Torsion

Why might an engineer choose a beam bridge over an arch bridge for a short span?

• Beam bridges are more aesthetically pleasing.

• Beam bridges can handle more weight.

• Beam bridges are simpler and cheaper to construct for short spans.

• Beam bridges require no supports or foundations.

What disadvantage does the simplicity of beam bridges bring?

• They are less durable over time.

• They require constant maintenance.

• They have a higher risk of collapse.

• They are not suitable for heavy traffic.

How do arch bridges distribute weight?

• Through the deck directly into the supports

• Evenly across the entire structure

• Downwards and outwards along the curve of the arch

• Solely through the arch to the foundation