7.1.4. Efficiency in Load Bearing

Try these first

1. 1.

   What is the primary loading type in arches?

   Hint

   Consider how forces are applied to the arch.

2. 2.

   List one advantage of using arches over beams.

   Hint

   Think about material usage.

3. 3.

   What is the primary method arches use to support loads?

   • Bending
   • Axial Compression
   • Tension

   Hint

   Consider the forces at play in an arch.

4. 4.

   True or False: A parabolic arch can support uniform loads without bending moments.

   • True
   • False

   Hint

   Reflect on the characteristics of parabolic shapes.

5. 5.

   Design a parabolic arch for a small pedestrian bridge with a 20 ft span and a 2 ft rise. Calculate the maximum axial load it can support.

   Hint

   Remember to consider the weight distribution across the arch.

6. 6.

   Critique a given design of a semi-circular arch with a rise of 5 ft and a span of 30 ft. Identify potential weaknesses.

   Hint

   Focus on how the current design handles vertical and horizontal forces.