7.1.7. Analysis of Loads on Arches

Try these first

1. 1.

   What is the primary force acting on an arch?

   Hint

   Think about what material an arch is designed to handle.

2. 2.

   What type of arch is best for minimizing bending forces?

   Hint

   Reflect on the shape and its distribution of stress.

3. 3.

   What is the main function of an arch in structural design?

   • Resists tensile stress
   • Resists compressive loads
   • Resists bending only

   Hint

   Think about the types of forces arches are built to withstand.

4. 4.

   Is a parabolic arch subjected to bending moments under uniform loading?

   • True
   • False

   Hint

   Recall the definitions and characteristics of the parabolic arch.

5. 5.

   Analyze a three-hinged arch with known weights at intervals along the span. Calculate the resultant forces and moments.

   Hint

   Break down forces into vertical and horizontal components.

6. 6.

   Propose a design for a parabolic arch to support a specific load. Include calculations for dimensions based on different loading scenarios.

   Hint

   Consider how changes in load affect compression forces within the structure.