7.1.1. Optimization of Dead-Load Efficiency

Try these first

1. 1.

   What is dead-load efficiency?

   Hint

   Think about how structures manage their own weight.

2. 2.

   Describe the function of an arch.

   Hint

   Consider the load-bearing behavior of arches.

3. 3.

   What primarily allows an arch to support loads efficiently?

   • Bending moments
   • Axial compression
   • Shear forces

   Hint

   Think about how a cable and an arch behave differently.

4. 4.

   True or False: A parabolic arch subject to uniform loads experiences bending moments.

   • True
   • False

   Hint

   Reflect on the equilibrium principles we've discussed.

5. 5.

   Calculate the optimal height for an arch with a 60 ft span to maximize efficiency, considering a rise ratio of 6.

   Hint

   Translate the span with the ratio given to find height.

6. 6.

   Argue the effects of varying load types on an arch's stability and efficiency.

   Hint

   Think about the logs of forces acting differently when shapes change.