5.16.3. Pushover Analysis

Try these first

1. 1.

   What is the main goal of pushover analysis?

   Hint

   Think about what happens to a structure under increasing loads.

2. 2.

   What does a capacity curve represent?

   Hint

   Consider what information you get from applying loads.

3. 3.

   What is the purpose of pushover analysis?

   • To determine structural geometry
   • To evaluate structural performance under seismic loads
   • To calculate construction costs

   Hint

   Think about the type of loads that affect structures during earthquakes.

4. 4.

   True or False: A capacity curve is used to represent the load versus displacement relationship in pushover analysis.

   • True
   • False

   Hint

   What does the curve visualize?

5. 5.

   A building has a desired target displacement of 10 cm under seismic loading. If pushover analysis indicates a maximum base shear before reaching that displacement is 50 kN, discuss what this implies for performance-based design.

   Hint

   Consider what happens to safety considerations if maximum loads are exceeded.

6. 6.

   A multistory building undergoes pushover analysis revealing a sharply increasing capacity curve followed by a plateau. What does this indicate about the structure's performance during seismic loading?

   Hint

   Analyze the implications of the curve's shape on potential design adjustments.